СПИСОК патентов США - подгруппа МПК16 H04L1/24
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| № п/п | Номер патента | Название патента | |||
2017 | |||||
| 1 | 9602247 | Method and device for retransmission | |||
| 2 | 9600372 | Approach for controller area network bus off handling | |||
| 3 | 9596676 | Calibration of a downlink transmit path of a base station | |||
| 4 | 9596041 | Noise localization within cable based communication systems | |||
| 5 | 9590774 | Circuit for introducing signal jitter | |||
| 6 | 9584268 | Device level enablement of a communications protocol | |||
| 7 | 9577797 | System and method for the detection and remediation of non-responsive customer premises equipment | |||
| 8 | 9569396 | Interface with variable data rate | |||
| 9 | 9558054 | Apparatus and method for detecting errors on a transmission path | |||
| 10 | 9544910 | Communications system | |||
| 11 | 9544103 | Differential wired communication link quality detector and differential wired communication link quality detection method | |||
| 12 | 9544091 | Bandwidth control for differential manchester encoding auto-negotiation signaling | |||
| 13 | 9544071 | Margin test methods and circuits | |||
| 14 | 9537618 | Systems and methods for differential pair in-pair skew determination and compensation | |||
| 15 | 9537617 | Receiver clock test circuitry and related methods and apparatuses | |||
| 16 | 9537590 | Synchronization of communication equipment | |||
2016 | |||||
| 17 | 9521070 | Apparatus, information processing method and information processing system | |||
| 18 | 9515809 | Testing using analog near end loop back circuit | |||
| 19 | 9509444 | Efficient checksum communication between devices | |||
| 20 | 9503228 | Systems and methods to detect, diagnose, and mitigate issues in multi-layer networks | |||
| 21 | 9491646 | Measuring device and a method for measuring a signal with several component signals | |||
| 22 | 9485677 | Determining hearability in a heterogenous communication network | |||
| 23 | 9483340 | Estimating bit error rate | |||
| 24 | 9479649 | Method and system for call data analysis | |||
| 25 | 9479637 | Systems and methods for establishing a diagnostic transmission mode and communicating over the same | |||
| 26 | 9473275 | Gain asymmetry characterizing circuit and method for determining characteristics of gain asymmetry possessed by transmitter | |||
| 27 | 9450747 | Soft decision analyzer and method | |||
| 28 | 9450686 | Testing an upstream path of a cable network | |||
| 29 | 9444560 | Method and apparatus for IQ imbalance estimation | |||
| 30 | 9432133 | Vector signal generator channel characterization employing orthogonal modulation | |||
| 31 | 9425907 | Loopback-based built-in-self-test | |||
| 32 | 9423443 | System and method of detecting and locating intermittent and other faults | |||
| 33 | 9413583 | Calibrating RF path delay and IQ phase imbalance for polar transmit system | |||
| 34 | 9413497 | Bit error pattern analyzer and method | |||
| 35 | 9401782 | Test system and a test method for determining processing parameters of audio and/or video data | |||
| 36 | 9391794 | Generating worst case test sequences for non-linearly driven channels | |||
| 37 | 9379855 | Method and apparatus for a remote modular test system | |||
| 38 | 9374194 | Transmission system error detection and correction system and method | |||
| 39 | 9369231 | Dynamic adjustment of transfer characteristics as a function of channel characteristics | |||
| 40 | 9363046 | Measuring impairments of digitized signals in data and timing recovery circuits | |||
| 41 | 9363035 | Method for testing the transmission modes of a radio device | |||
| 42 | 9356743 | Method and apparatus for evaluating and optimizing a signaling system | |||
| 43 | 9350573 | Apparatus and method for reducing discontinuities between waveforms in a communication system | |||
| 44 | 9350499 | Carrier aggregation testing method and apparatus for performing the same | |||
| 45 | 9344219 | Increasing communication safety by preventing false packet acceptance in high-speed links | |||
| 46 | 9344203 | Distortion measurement for limiting jitter in PAM transmitters | |||
| 47 | 9338282 | Data processing in a digital subscriber line environment | |||
| 48 | 9332552 | Frequency agility for wireless embedded systems | |||
| 49 | 9331793 | Controller for network having substantially fixed topology | |||
| 50 | 9325459 | Radio frequency communication | |||
| 51 | 9319887 | Methods and apparatus for wireless coexistence based on transceiver chain emphasis | |||
| 52 | 9319512 | Systems and methods for establishing a diagnostic transmission mode and communicating over the same | |||
| 53 | 9319187 | Method and a device for relaying in a communications network | |||
| 54 | 9301171 | Methods, test systems and arrangements for verifying compliance with requirement specifications | |||
| 55 | 9300444 | Wideband quadrature error correction | |||
| 56 | 9298668 | Bit error rate reduction buffer, method and apparatus | |||
| 57 | 9293075 | Display apparatus and control method thereof | |||
| 58 | 9282470 | Method and apparatus for detecting radio link failure in wireless communication system | |||
| 59 | 9271159 | Methods, systems, and computer readable media for testing a diameter routing node | |||
| 60 | 9264533 | Systems and methods for establishing a diagnostic transmission mode and communicating over the same | |||
| 61 | 9264188 | Apparatus and a method for determining information on an amplitude error of a transmit signal | |||
| 62 | 9246643 | Method of determining an error rate and a suitable testing device | |||
| 63 | 9244126 | Automated test system with event detection capability | |||
| 64 | 9236978 | System and method for information verification based on channel awareness | |||
| 65 | 9231740 | Transmitter noise in system budget | |||
| 66 | 9231715 | I/Q mismatch compensation method and apparatus | |||
| 67 | 9229831 | Test device and method | |||
| 68 | 9226701 | Error detection in critical repeating data in a wireless sensor system | |||
2015 | |||||
| 69 | 9226184 | Estimating and utilizing client receive interference cancellation capability in multi-user transmissions | |||
| 70 | 9215063 | Specifying a 3-phase or N-phase eye pattern | |||
| 71 | 9215047 | Signal processing device and method by use of wireless communication | |||
| 72 | 9215046 | Fault diagnosis device for multiplexer | |||
| 73 | 9215045 | System and method of detecting and locating intermittent electrical faults in electrical systems | |||
| 74 | 9214232 | Methods and apparatuses for calibrating data sampling points | |||
| 75 | 9210025 | Method and apparatus for correcting in-phase signal and quadrature-phase signal | |||
| 76 | 9209948 | Testing a decision feedback equalizer (`DFE`) | |||
| 77 | 9197532 | Communication analysis apparatus and communication analysis method | |||
| 78 | 9191066 | Systems and methods for loop length and bridged tap length determination of a transmission line | |||
| 79 | 9179142 | Image processing apparatus and inspecting method thereof | |||
| 80 | 9178668 | Method and apparatus for detecting improper connections near a customer premises equipment | |||
| 81 | 9178647 | Interface with variable data rate | |||
| 82 | 9172498 | Controlled noise injection in transmitter for noise margin testing | |||
| 83 | 9166750 | Soft decision analyzer and method | |||
| 84 | 9166749 | Serial data transmission system and method | |||
| 85 | 9160590 | Diversity with a coded signal | |||
| 86 | 9160498 | Transmission unit and diagnosis method | |||
| 87 | 9158642 | Method of testing multiple data packet signal transceivers concurrently | |||
| 88 | 9154271 | Method and apparatus for a physical layer device (PHY) to determine a status of a link in a network | |||
| 89 | 9148264 | Data transmission method, device and system | |||
| 90 | 9148234 | Technique and test signal for determining signal path properites | |||
| 91 | 9143267 | Low complexity and power efficient error correction coding schemes | |||
| 92 | 9135480 | Multi-protocol or multi command RFID system | |||
| 93 | 9116810 | Margin test methods and circuits | |||
| 94 | 9100182 | Digital communications test system for multiple input, multiple output (MIMO) systems | |||
| 95 | 9094842 | Systems and method for orthogonal frequency divisional multiplexing | |||
| 96 | 9094290 | Measuring and displaying bandwidth contention | |||
| 97 | 9092386 | Indicating an error within a dispersed storage network | |||
| 98 | 9088399 | Circuit and method for testing jitter tolerance | |||
| 99 | 9083525 | Method and apparatus for generating jitter test patterns on a high performance serial bus | |||
| 100 | 9077535 | System and method for testing a radio frequency multiple-input multiple-output data packet transceiver while forcing fewer data streams | |||
| 101 | 9077330 | Serializer circuitry for high-speed serial data transmitters on programmable logic device integrated circuits | |||
| 102 | 9071549 | Communication device using plurality of communication paths | |||
| 103 | 9071407 | Receiver clock test circuitry and related methods and apparatuses | |||
| 104 | 9059879 | Test signal generation and application in receivers | |||
| 105 | 9048967 | Asymmetric OTN network traffic support | |||
| 106 | 9020021 | Precoding loss reduction | |||
| 107 | 9001270 | Data analyzing and/or combined main/mobile receiving | |||
| 108 | 8995285 | Methods for reconciling trunk group identification information among various telecommunication network management systems | |||
2014 | |||||
| 109 | 8913507 | Virtual data loopback and/or data capture in a computing system | |||
| 110 | 8887016 | IC and a method of testing a transceiver of the IC | |||
| 111 | 8861376 | Broadcast receiving apparatus and method of determining broadcast reception state thereof | |||
| 112 | 8750106 | Interface control system and interface control method | |||
| 113 | 8665700 | Fault detection and mitigation for in-vehicle LAN network management | |||
2013 | |||||
| 114 | 8614959 | Method and apparatus for certifying a signal message in a communications network | |||
| 115 | 8584236 | Method and apparatus for detecting abnormal traffic in a network | |||
| 116 | 8553571 | Auto reply and loop-back method for the remote measurement of the quality of an internet phone | |||
| 117 | 8502670 | Real-time RFID positioning system and method, repeater installation method therefor, position confirmation service system using the same | |||
| 118 | 8474036 | Database context-based intrusion detection | |||
2012 | |||||
| 119 | 8301956 | Methods and apparatus to improve communication in a relay channel | |||
| 120 | 8189485 | Method for allocating and configuring tandem connection monitoring (TCM) | |||
| 121 | 8145452 | Serial interface amplitude selection for a disk drive in an unknown interconnect environment | |||
2011 | |||||
| 122 | 8045479 | Method and system of testing video access devices | |||
| 123 | 8014977 | Serial interface amplitude selection for a disk drive in an unknown interconnect environment | |||
2010 | |||||
| 124 | 7724646 | System and method for implementing service switching | |||
| 125 | 7701880 | Fibre channel link initialization | |||
2009 | |||||
| 126 | 7623444 | Apparatus and method for redundancy control of duplex switch board | |||
| 127 | 7571379 | Method and system for configuring registers in microcontrollers, and corresponding computer-program product | |||
2008 | |||||
| 128 | 7408883 | Apparatus and method for performing a loopback test in a communication system | |||
| 129 | 7400673 | Method of determining and displaying powers of code channels and analysis device | |||
2007 | |||||
| 130 | 7240251 | Method and system for data transmission in a CT device, with integrated error monitoring and diagnosis | |||
| 131 | 7168015 | TF-determination apparatus, and TF-determination method as well as program to be executed for implementing the TF-determination method | |||
2006 | |||||
| 132 | 7117401 | Method and apparatus for optimizing timing for a multi-drop bus | |||
| 133 | 7032113 | Network enabled application software system and method | |||
2005 | |||||
| 134 | 6968490 | Techniques for automatic eye-degradation testing of a high-speed serial receiver | |||
| 135 | 6965648 | Source synchronous link integrity validation | |||
| 136 | 6961317 | Identifying and synchronizing permuted channels in a parallel channel bit error rate tester | |||
| 137 | 6959038 | High-speed decoder for a multi-pair gigabit transceiver | |||
| 138 | 6954615 | Display terminal | |||
| 139 | 6952442 | Activation of multiple xDSL modems with implicit channel probe | |||
| 140 | 6947502 | Parameter estimator for a multiuser detection receiver | |||
| 141 | 6947482 | System and method for high-speed decoding and ISI compensation in a multi-pair transceiver system | |||
| 142 | 6944237 | Multi-pair transceiver decoder system with low computation slicer | |||
| 143 | 6938190 | Failure detector for communication network in automobile | |||
| 144 | 6934326 | Activation of multiple xDSL modems with implicit channel probe | |||
| 145 | 6931577 | Bit error measurement apparatus and method, and recording medium | |||
| 146 | 6931335 | Jitter histogram approximation | |||
| 147 | 6928597 | Method and apparatus for testing digital circuitry | |||
| 148 | 6928592 | Communication channel accuracy measurement | |||
| 149 | 6928106 | Phy control module for a multi-pair gigabit transceiver | |||
| 150 | 6928018 | Dynamic register with low clock rate testing capability | |||
| 151 | 6927565 | Dynamic register with IDDQ testing capability | |||
| 152 | 6922417 | Method and system to calculate network latency, and to display the same field of the invention | |||
| 153 | 6920591 | Measuring an error rate in a communication link | |||
| 154 | 6918060 | Bounding data transmission latency based upon link loading and arrangement | |||
| 155 | 6917916 | Method and apparatus for testing digital channels in a wireless communication system | |||
| 156 | 6917647 | Activation of multiple xDSL modems with power control measurement | |||
| 157 | 6914884 | Communication control circuit | |||
| 158 | 6912247 | Digital signal transmission system and method of displaying transmission condition in digital signal transmission system | |||
| 159 | 6909741 | Network quality of service localizer | |||
| 160 | 6907542 | System, device and method for determining the reliability of data carriers in a failsafe system network | |||
| 161 | 6907062 | PRBS generator selection in modem communication | |||
| 162 | 6892149 | Identifying data loss in a transmission system | |||
| 163 | 6888885 | Modem data constellation design including power compensation for analog loss and utilization of maximum dynamic range of CODEC | |||
| 164 | 6888799 | SDH test apparatus and SDH test method | |||
| 165 | 6885746 | Crosstalk identification for spectrum management in broadband telecommunications systems | |||
| 166 | 6883117 | Bus trace analysis a posteriori | |||
| 167 | 6880114 | Built-in test signal attenuation circuit | |||
| 168 | 6880112 | Method and apparatus for online detection and correction of faults affecting system-on-chip buses | |||
| 169 | 6877129 | Method for measuring the receiver-side bit error rate of a DVB transmission system | |||
| 170 | 6873652 | Activation of multiple xDSL modems with implicit channel probe | |||
| 171 | 6871152 | Method and apparatus for performing eye diagram measurements | |||
| 172 | 6870901 | Design and architecture of an impairment diagnosis system for use in communications systems | |||
| 173 | 6868069 | Method and apparatus for passively calculating latency for a network appliance | |||
| 174 | 6865700 | Using profiles to perform bit error rate testing | |||
| 175 | 6865234 | Pair-swap independent trellis decoder for a multi-pair gigabit transceiver | |||
| 176 | 6865221 | Systems and methods for loop length and bridged tap length determination of a transmission line | |||
| 177 | 6862701 | Data communication system with self-test facility | |||
| 178 | 6859900 | Injection of selected numbers of errors in returned loopback data to provide gray-scale type qantification of loop performance measurements | |||
| 179 | 6851083 | Method for transmitting source encoded digital signals | |||
| 180 | 6842868 | Connection integrity monitor for digital selection circuits | |||
| 181 | 6839383 | Method and system for testing a digital subscriber line modem | |||
2004 | |||||
| 182 | 6826505 | System and method for testing a communications server | |||
| 183 | 6826140 | Multichannel digital recording system with multi-user detection | |||
| 184 | 6823483 | Physical coding sublayer for a multi-pair gigabit transceiver | |||
| 185 | 6823480 | Operational status identification system for a modem or other communication system | |||
| 186 | 6816559 | FSK modulation transceiver | |||
| 187 | 6807228 | Dynamic regulation of power consumption of a high-speed communication system | |||
| 188 | 6792566 | Method and apparatus of pre-loading a seed for a test code of a physical layer device | |||
| 189 | 6785855 | Implementation of an assertion check in ATPG models | |||
| 190 | 6785622 | Method and apparatus for performing eye diagram measurements | |||
| 191 | 6782335 | Method and system for estimating input power in a cable modem network | |||
| 192 | 6778931 | Test and measurement instrument having multi-channel telecommunications mask testing capability | |||
| 193 | 6778602 | Multi-pair gigabit ethernet transceiver | |||
| 194 | 6772378 | Dummy error addition circuit | |||
| 195 | 6771725 | Multi-pair gigabit ethernet transceiver | |||
| 196 | 6769039 | Data processing apparatus with circuit for confirming normality of serial transmission data | |||
| 197 | 6768772 | Activation of multiple xDSL modems with implicit channel probe | |||
| 198 | 6768703 | Eye diagram analyzer with fixed data channel delays and swept clock channel delay | |||
| 199 | 6765957 | Activation of multiple xDSL modems with implicit channel probe | |||
| 200 | 6763087 | Mobile VDSL signal detector | |||
| 201 | 6760676 | On-screen tools for eye diagram measurements | |||
| 202 | 6760571 | Automatic frequency deviation detection and correction apparatus | |||
| 203 | 6751254 | Activation of multiple xDSL modems with power control measurement | |||
| 204 | 6748338 | Method and apparatus for testing eye diagram characteristics | |||
| 205 | 6745148 | Intelligent test point selection for bit error rate tester-based diagrams | |||
| 206 | 6744247 | Method and measuring device for measuring the spectra in adjacent channels | |||
| 207 | 6741866 | Fade margin test | |||
| 208 | 6741642 | Enhanced constellation display for VSB television signals | |||
| 209 | 6738419 | Dynamic regulation of power consumption of a high-speed communication system | |||
| 210 | 6737859 | Dynamic register with IDDQ testing capability | |||
| 211 | 6731914 | Determination of transmitter distortion | |||
| 212 | 6731691 | Multi-pair gigabit ethernet transceiver having adaptive disabling of circuit elements | |||
| 213 | 6728648 | Test and measurement instrument having telecommunications mask testing capability with an autofit to mask feature | |||
| 214 | 6721916 | System and method for trellis decoding in a multi-pair transceiver system | |||
| 215 | 6715112 | Method and apparatus for displaying triggered waveform on an error performance analyzer | |||
| 216 | 6708020 | Calibration device | |||
| 217 | 6707848 | Demodulator for a multi-pair gigabit transceiver | |||
| 218 | 6693957 | Adaptive front end for discrete multitone modem | |||
| 219 | 6693881 | Method for bit error rate measurements in a cell-based telecommunication system | |||
| 220 | 6691262 | Method and apparatus for quality evaluation of cable circuit | |||
| 221 | 6684351 | System and method for diagnosing errors in multidimensional digital frame structure communications | |||
| 222 | 6684350 | Repetitive pattern testing circuit for AC-coupled systems | |||
| 223 | 6683854 | System for checking data integrity in a high speed packet switching network node | |||
| 224 | 6680913 | Method and system for testing data channel functionality in a radio apparatus | |||
| 225 | 6678858 | Code error monitor apparatus | |||
| 226 | 6678839 | Troubleshooting method of looped interface and system provided with troubleshooting function | |||
| 227 | 6678251 | Link quality agent | |||
| 228 | 6675328 | System and method to determine data throughput in a communication network | |||
2003 | |||||
| 229 | 6671312 | Telecommunications line test method | |||
| 230 | 6662367 | Poly-phase filters in multicarrier communication systems | |||
| 231 | 6661850 | Testing system of voice-band data transmission interface on an exchange | |||
| 232 | 6661836 | Measuring jitter of high-speed data channels | |||
| 233 | 6661727 | Dynamic register with low clock rate testing capability | |||
| 234 | 6658607 | Method for detecting troubles of transmission in SDH and SONET | |||
| 235 | 6658569 | Secret key cryptographic process for protecting a computer system against attacks by physical analysis | |||
| 236 | 6658052 | Systems and methods for establishing a diagnostic transmission mode and communicating over the same | |||
| 237 | 6657966 | Test access system and method for digital cross connect communication networks | |||
| 238 | 6651195 | Method and system for bit error structure measurements of data transmission channels | |||
| 239 | 6650622 | System for communicating with electronic equipment | |||
| 240 | 6643257 | Verifying performance of a buffering and selection network device | |||
| 241 | 6642926 | Test and measurement instrument having telecommunications mask testing capability with a mask zoom feature | |||
| 242 | 6639426 | Apparatus for testing simultaneous bi-directional I/O circuits | |||
| 243 | 6636994 | Apparatus and method for examining bit values during bit error location measurements | |||
| 244 | 6633620 | Data receiver capable of invalidating erroneous pulses | |||
| 245 | 6629290 | Method and apparatus for automatic transmit verification | |||
| 246 | 6628737 | Signal synchronization using synchronization pattern extracted from signal | |||
| 247 | 6628621 | Multichannel-capable bit error rate test system | |||
| 248 | 6621831 | Method and apparatus for verifying and correcting connectivity | |||
| 249 | 6618696 | Method of testing and simulating communication equipment over multiple transmission channels | |||
| 250 | 6611928 | Homo-code continuity proof testing device | |||
| 251 | 6608835 | Communication system with multicarrier telephony transport | |||
| 252 | 6606351 | Ingress protection in a communication system with orthogonal carriers | |||
| 253 | 6603822 | Communicating errors in a telecommunications system | |||
| 254 | 6601004 | Method and apparatus for measuring parameters of an electronic system | |||
| 255 | 6600433 | Method and apparatus for correcting digital code words in a digital communication network | |||
| 256 | 6597754 | Compensation of frequency pulling in a time-division duplexing transceiver | |||
| 257 | 6594322 | Method of distributed loop control for a multicarrier telephony transport | |||
| 258 | 6594275 | Fibre channel host bus adapter having multi-frequency clock buffer for reduced power consumption | |||
| 259 | 6590870 | Transmission of alternating delimiter code to achieve byte alignment when using in-band digital code sequences to remotely provision network interface device terminating local loop | |||
| 260 | 6590462 | Noise code string generator and CN controller comprising it | |||
| 261 | 6587840 | Data health monitor for financial information communications networks | |||
| 262 | 6583898 | Optical transmission device and method for checking transmission in an optical transmission device | |||
| 263 | 6583628 | Process and device to determine malfunctioning detectors acting as current sinks in a danger signaling system | |||
| 264 | 6564349 | Built-in self-test systems and methods for integrated circuit baseband quadrature modulators | |||
| 265 | 6563333 | Dynamic register with IDDQ testing capability | |||
| 266 | 6549781 | System and methods for rapidly determining CDMA network performance | |||
| 267 | 6549595 | High-speed serial data communication system | |||
| 268 | 6545976 | Measurement of network protection switch time | |||
| 269 | 6542538 | Method and apparatus for testing wireless communication channels | |||
| 270 | 6538865 | Fault-detecting device for communication system | |||
| 271 | 6538451 | Single ended measurement method and system for determining subscriber loop make up | |||
| 272 | 6535715 | Hybrid/fiber coax video and telephony communication system with poly-phase filtering | |||
| 273 | 6523233 | Method and apparatus for telephone network impairment detection and compensation in signal transmission between modems | |||
| 274 | 6522436 | Multiplexed transmission of optical signals | |||
| 275 | 6519718 | Method and apparatus implementing error injection for PCI bridges | |||
| 276 | 6519230 | Device for testing synchronous-transfer-mode switch | |||
| 277 | 6516445 | System and method for detecting point-of-deployment (POD) module failure | |||
| 278 | 6516434 | Application-specific integrated circuit (ASIC) for use in communication facilities of a digital network | |||
| 279 | 6510229 | Communication system with multicarrier telephony transport | |||
| 280 | 6507199 | Method for measuring the operating properties of a subscriber line module for high-bit-rate data transmission | |||
| 281 | 6505310 | Connection integrity monitor for digital selection circuits | |||
2002 | |||||
| 282 | 6501804 | Method for the transmission of digital signals | |||
| 283 | 6499009 | Handling variable delay in objective speech quality assessment | |||
| 284 | 6498663 | Methods and systems for detecting optical link performance of an optical link in a hybrid fiber coaxial path | |||
| 285 | 6496544 | Digital computing system having adaptive communication components | |||
| 286 | 6493319 | Test access system and method for digital communication networks | |||
| 287 | 6490317 | Data, path and flow integrity monitor | |||
| 288 | 6490269 | OFDM signal generation method and OFDM signal generation apparatus | |||
| 289 | 6487405 | Communication system with multicarrier telephony transport for controlling a plurality of service units | |||
| 290 | 6484202 | Method and apparatus for determining the status of a transmission link | |||
| 291 | 6480469 | Dial-up access response testing method and system therefor | |||
| 292 | 6477354 | Communication system transmitting modulated orthogonal carries with service units that scan spectrum to identify assigned band | |||
| 293 | 6477238 | Loop certification and measurement for ADSL | |||
| 294 | 6477200 | Multi-pair gigabit ethernet transceiver | |||
| 295 | 6477199 | Dynamic regulation of power consumption of a high-speed communication system | |||
| 296 | 6477198 | Quality cause measurement display | |||
| 297 | 6470074 | System and method for providing data and voice services on a shared line | |||
| 298 | 6467092 | Method for adjusting power in a communication system with multicarrier telephony transport | |||
| 299 | 6466650 | Telecom service identification transponder apparatus and technique | |||
| 300 | 6459773 | System to pre-qualify copper subscriber loops for high bandwidth access service using subscriber or network generated tones | |||
| 301 | 6459746 | Multi-pair gigabit ethernet transceiver | |||
| 302 | 6456552 | Dynamic register with low clock rate testing capability | |||
| 303 | 6453432 | Method and system for communicating the status of a digital transmission line element during loopback | |||
| 304 | 6453014 | Test access and performance monitoring system and method for cross-connect communication network | |||
| 305 | 6434583 | Fast fourier transform apparatus and method | |||
| 306 | 6430266 | Apparatus and method for examining and standardizing line connections | |||
| 307 | 6430160 | Estimating data delays from poisson probe delays | |||
| 308 | 6427133 | Process and device for evaluating the quality of a transmitted voice signal | |||
| 309 | 6424628 | Analyzing signals | |||
| 310 | 6418558 | Hybrid fiber/coax video and telephony communication | |||
| 311 | 6417834 | Arrangement for displaying the signal statuses of a QAM-modulated signal | |||
| 312 | 6415133 | Acquisition and tracking in communication system with multicarrier telephony transport | |||
| 313 | 6411117 | Dynamic register with IDDQ testing capability | |||
| 314 | 6404805 | Bit error measuring device for modem device and bit error measuring method for the same | |||
| 315 | 6404733 | Method of exercising a distributed restoration process in an operational telecommunications network | |||
| 316 | 6397042 | Self test of an electronic device | |||
| 317 | 6389068 | Sliced bandwidth distortion prediction | |||
| 318 | 6385237 | Non-invasive digital cable test system | |||
| 319 | 6381221 | System and method for monitoring line performance in a digital communication network | |||
| 320 | 6374375 | Monitoring line conditions in the data transmission mode | |||
| 321 | 6374165 | Railway information transmission method and system | |||
| 322 | 6373900 | Multi-pair transceiver decoder system with low computation slicer | |||
| 323 | 6373822 | Data network protocol conformance test system | |||
| 324 | 6373819 | Routine testing parity maintenance | |||
| 325 | 6367028 | Self diagnosing communications bus and method of operating same | |||
| 326 | 6366585 | Distributed control in a communication system | |||
| 327 | 6363129 | Timing recovery system for a multi-pair gigabit transceiver | |||
| 328 | 6351830 | Apparatus for checking for defect of serial communication devices and method thereof | |||
| 329 | 6348811 | Apparatus and methods for testing simultaneous bi-directional I/O circuits | |||
| 330 | 6338156 | Method and device for detecting the loss-of-signal condition at the input of a transmission line interface | |||
| 331 | 6336201 | Synchronization in a communications system with multicarrier telephony transport | |||
2001 | |||||
| 332 | 6334219 | Channel selection for a hybrid fiber coax network | |||
| 333 | 6330241 | Multi-point to point communication system with remote unit burst identification | |||
| 334 | 6329807 | Device for the recognition of a defective signal | |||
| 335 | 6324260 | Channel check test system | |||
| 336 | 6317843 | Erroneous package mounting determination method for a transmission device, and a transmission device using the same | |||
| 337 | 6313932 | Multiplexed transmission of optical signals | |||
| 338 | 6307905 | Switching noise reduction in a multi-clock domain transceiver | |||
| 339 | 6294992 | High power control signal transmission and low power data signal transmission in a wireless security system | |||
| 340 | 6292651 | Communication system with multicarrier transport distribution network between a head end terminal and remote units | |||
| 341 | 6292516 | Communication system using packets stuffed with test words for evaluating data reception characteristics while providing increased data throughput | |||
| 342 | 6289047 | Dynamic regulation of power consumption of a high-speed communication system | |||
| 343 | 6288639 | Low power installation of wireless security system devices | |||
| 344 | 6282683 | Communication system with multicarrier telephony transport | |||
| 345 | 6282239 | Method and apparatus for testing a communications line in a data processing system | |||
| 346 | 6282173 | Processing apparatus for measuring performance monitoring parameters | |||
| 347 | 6279158 | Dynamic bandwidth allocation | |||
| 348 | 6278730 | Non-invasive digital cable test system | |||
| 349 | 6278729 | Method and apparatus for testing a communications line in a data processing system | |||
| 350 | 6275990 | Transport of payload information and control messages on multiple orthogonal carriers spread throughout substantially all of a frequency bandwith | |||
| 351 | 6275519 | Frame synchronization in a digital communications system | |||
| 352 | 6272173 | Efficient fir filter for high-speed communication | |||
| 353 | 6272112 | Repeating unit testing system and communication apparatus as well as communication method | |||
| 354 | 6268808 | High speed data modification system and method | |||
| 355 | 6263013 | Fast tracking of PN synchronization in a direct-sequence spread-spectrum digital communications system | |||
| 356 | 6259900 | Radio frequency signal folding-back transmitting/receiving circuit and radio transmitting/receiving apparatus for use therewith | |||
| 357 | 6259314 | Built-in self test for a satellite demodulator | |||
| 358 | 6256353 | Method and apparatus for generating a probing signal for a system having non-linear network and codec distortion | |||
| 359 | 6256337 | Rapid acquisition of PN synchronization in a direct-sequence spread-spectrum digital communications system | |||
| 360 | 6256335 | Slow tracking of PN synchronization in a direct-sequence spread-spectrum digital communications system | |||
| 361 | 6253345 | System and method for trellis decoding in a multi-pair transceiver system | |||
| 362 | 6252904 | High-speed decoder for a multi-pair gigabit transceiver | |||
| 363 | 6252502 | Alarm detection apparatus | |||
| 364 | 6249544 | System and method for high-speed decoding and ISI compensation in a multi-pair transceiver system | |||
| 365 | 6249127 | Method and circuit for checking lead defects in a two-wire bus system | |||
| 366 | 6247092 | Control of command transmission and reception in a data transmission device and data transmission device therefor | |||
| 367 | 6233613 | High impedance probe for monitoring fast ethernet LAN links | |||
| 368 | 6233274 | Non-invasive digital cable test system | |||
| 369 | 6233225 | Line coding mismatch detection technique | |||
| 370 | 6230120 | Detection of speech channel back-looping | |||
| 371 | 6230086 | Railway information transmission method and system | |||
| 372 | 6226332 | Multi-pair transceiver decoder system with low computation slicer | |||
| 373 | 6222877 | Method for performance monitoring of data transparent communication links | |||
| 374 | 6215855 | Loop certification and measurement for ADSL | |||
| 375 | 6215773 | Method to control a switching unit and an arrangement working according to the method | |||
| 376 | 6212246 | Symbol-quality evaluation in a digital communications receiver | |||
| 377 | 6212119 | Dynamic register with low clock rate testing capability | |||
| 378 | 6208694 | Reduced power supervisory message transmission in a wireless alarm system | |||
| 379 | 6208621 | Apparatus and method for testing the ability of a pair of serial data transceivers to transmit serial data at one frequency and to receive serial data at another frequency | |||
| 380 | 6201831 | Demodulator for a multi-pair gigabit transceiver | |||
| 381 | 6201829 | Serial/parallel GHZ transceiver with pseudo-random built in self test pattern generator | |||
| 382 | 6188672 | Circuit arrangement for sensing errors in bit patterns | |||
| 383 | 6185594 | Versatile signal generator | |||
| 384 | 6185261 | Determination of transmitter distortion | |||
| 385 | 6181745 | Process for monitoring the quantization quality in digital radio or television transmission systems | |||
| 386 | 6169883 | Remote test of a subscriber connection in a system implementing a wireless subscriber connection | |||
| 387 | 6169763 | Characterizing a communication system using frame aligned test signals | |||
2000 | |||||
| 388 | 6167077 | Using multiple high speed serial lines to transmit high data rates while compensating for overall skew | |||
| 389 | 6151691 | Remote reporting system for digital transmission line elements | |||
| 390 | 6148422 | Telecommunication network utilizing an error control protocol | |||
| 391 | 6130619 | Monitoring circuit for a communication device | |||
| 392 | 6128313 | Apparatus and method for filtering line noise and improper packet formatting | |||
| 393 | 6122313 | Self-contained self-testing data modulator | |||
| 394 | 6119168 | Communications system usable as system for simulating a plurality of other communications systems and communication processing system having such communications system | |||
| 395 | 6115395 | Method of detecting network impairments for high speed data communication over conventional subscriber lines | |||
| 396 | 6108801 | Using profiles to perform Bit Error Rate Testing | |||
| 397 | 6098179 | Method and apparatus for performing error detection | |||
| 398 | 6097768 | Phase detector for carrier recovery in a DQPSK receiver | |||
| 399 | 6094737 | Path test signal generator and checker for use in a digital transmission system using a higher order virtual container VC-4-Xc in STM-N frames | |||
| 400 | 6091713 | Method and system for estimating the ability of a subscriber loop to support broadband services | |||
| 401 | 6088824 | Test pattern generating apparatus, communication device and simulator | |||
| 402 | 6081550 | Method of testing clock paths and network elements for carrying out the method | |||
| 403 | 6076175 | Controlled phase noise generation method for enhanced testability of clock and data generator and recovery circuits | |||
| 404 | 6072842 | Carrier-recovery loop with stored initialization in a radio receiver | |||
| 405 | 6069876 | Performance monitoring of an ATM Network | |||
| 406 | 6061393 | Non-invasive digital cable test system | |||
| 407 | 6061391 | Error indicator, and data modulator-demodulator and indicating method of light emitter therein | |||
| 408 | 6058102 | Method and apparatus for performing service level analysis of communications network performance metrics | |||
| 409 | 6055281 | Passband DQPSK detector for a digital communications receiver | |||
| 410 | 6049720 | Link delay calculation and compensation system | |||
| 411 | 6044480 | Message generation and verification for a communication network | |||
| 412 | 6018556 | Programmable loop filter for carrier recovery in a radio receiver | |||
1999 | |||||
| 413 | 6006206 | Data health monitor for financial information communications networks | |||
| 414 | 6006150 | Communications device for control device | |||
| 415 | 6002714 | Data, path and flow integrity monitor | |||
| 416 | 6002710 | Timing recovery for a pseudo-random noise sequence in a direct-sequence spread-spectrum communications system | |||
| 417 | 6002709 | Verification of PN synchronization in a direct-sequence spread-spectrum digital communications system | |||
| 418 | 5995548 | Signaling method using multiple modulus shell mapping | |||
| 419 | 5991270 | Dynamic communication line analyzer apparatus and method | |||
| 420 | 5987629 | Interconnect fault detection and localization method and apparatus | |||
| 421 | 5983365 | Frame processing unit with test mode, line termination module including such a frame processing unit, and method for testing such a frame processing unit | |||
| 422 | 5982752 | Method and apparatus for detecting multiplexing standard mismatches in communication networks | |||
| 423 | 5978419 | Transmitter and receiver circuits for high-speed parallel digital data transmission link | |||
| 424 | 5970089 | Method and apparatus for generating a probing signal for a system having non-linear network and codec distortion | |||
| 425 | 5966416 | Verification of PN synchronization in a spread-spectrum communications receiver | |||
| 426 | 5966414 | System and method for processing signals to determine their stochastic properties | |||
| 427 | 5966306 | Method for verifying protocol conformance of an electrical interface | |||
| 428 | 5963885 | Sensing circuit | |||
| 429 | 5963545 | Fault evaluating system for transmission apparatus | |||
| 430 | 5956370 | Wrap-back test system and method | |||
| 431 | 5953372 | Loopback transmission testing in a communications device | |||
| 432 | 5951701 | Detection of loop-back conditions on faulty digital trunks | |||
| 433 | 5946462 | Station management circuit | |||
| 434 | 5943629 | Method and apparatus for real-time ionospheric mapping and dynamic forecasting | |||
| 435 | 5940480 | Method of extracting a call set-up failure probability and a premature disconnect probability by using network data | |||
| 436 | 5940435 | Method for compensating filtering delays in a spread-spectrum receiver | |||
| 437 | 5940412 | Decoding method | |||
| 438 | 5939887 | Method for measuring spectral energy interference in a cable transmission system | |||
| 439 | 5920608 | Measurement device for communication | |||
| 440 | 5914965 | Serial output self-test circuit | |||
| 441 | 5889785 | Remote reporting system for digital transmission line elements | |||
| 442 | 5883882 | Fault detection in a frequency duplexed system | |||
| 443 | 5881066 | System for testing a transmission link | |||
| 444 | 5878352 | Apparatus and method for selecting a transmitter for directed message delivery | |||
| 445 | 5875213 | GMSK communication device test system | |||
| 446 | 5875193 | Digital trunk for in-band line signal | |||
| 447 | 5874992 | Cable television data bit path error analyzer | |||
| 448 | 5870428 | Method for providing remote loop back testing in a digital data system having multiple protocols | |||
| 449 | 5870211 | Error rate measurement system for high speed optical pulse signals | |||
| 450 | 5867041 | Clock signal testing apparatus for use in a synchronous transmission system | |||
| 451 | 5862200 | Ground fault detector for T1 span equipment | |||
| 452 | 5862177 | Method for testing communications channels | |||
| 453 | 5862157 | Method and circuitry for monitoring a digital channel | |||
1998 | |||||
| 454 | 5851386 | Waste-oil cleaning apparatus | |||
| 455 | 5850605 | Method and apparatus for dynamically grouping transmitters for message transmission in a communication system | |||
| 456 | 5848073 | Method and apparatus for predicting transmission system errors and failures | |||
| 457 | 5841667 | Evaluation of signal-processor performance | |||
| 458 | 5835501 | Built-in test scheme for a jitter tolerance test of a clock and data recovery unit | |||
| 459 | 5835500 | Error rate monitor | |||
| 460 | 5825823 | PCM channel diagnosis | |||
| 461 | 5822373 | Method and apparatus for optimization of wireless communications | |||
| 462 | 5822332 | Pseudonoise code pull in circuit | |||
| 463 | 5812558 | Device and method for generating multiplexed signals with real time inputs for testing voice grade channels in a demultiplexer | |||
| 464 | 5812556 | Fault tolerant switch fabric with control and data correction by hamming codes and error inducing check register | |||
| 465 | 5805571 | Dynamic communication line analyzer apparatus and method | |||
| 466 | 5802105 | Method and apparatus for testing a digital communication channel | |||
| 467 | 5799242 | Communication control unit for mobile communication systems and the like, including a channel quality detection unit, a quality decision unit and a control unit | |||
| 468 | 5793815 | Calibrated multi-voltage level signal transmission system | |||
| 469 | 5793780 | Method for monitoring transmission of digital data signals on two parallel data lines | |||
| 470 | 5793749 | Method and apparatus for communications testing using a recorded test message | |||
| 471 | 5787133 | Signal modulation employing a pseudo-random sequence of pilot symbols | |||
| 472 | 5787114 | Loop-back test system and method | |||
| 473 | 5784411 | Method and system for processing signals for use in a wireless communication system | |||
| 474 | 5784407 | Method and device for monitoring an abnormality in digitally transmitted audio signals | |||
| 475 | 5784406 | Method and apparatus for objectively characterizing communications link quality | |||
| 476 | 5778048 | Feed imbalance detector in repeated line | |||
| 477 | 5768312 | Method and apparatus for evaluating digital transmission systems | |||
| 478 | 5768301 | Apparatus and method for detecting and correcting pair swap, and implementing a link integrity function in a packet-based data communications system | |||
| 479 | 5768300 | Interconnect fault detection and localization method and apparatus | |||
| 480 | 5764727 | Metallic access test extender | |||
| 481 | 5764694 | Self-testing and evaluation system | |||
| 482 | 5761216 | Bit error measurement system | |||
| 483 | 5757813 | Method for achieving optimal channel coding in a communication system | |||
| 484 | 5757810 | Transmission link supervision in radiocommunication systems | |||
| 485 | 5751935 | Radio paging system | |||
| 486 | 5751766 | Non-invasive digital communications test system | |||
| 487 | 5748876 | System and method for testing acoustic modems with semantically encoded waveforms | |||
| 488 | 5745549 | Line break detection device and modem comprising such a device | |||
| 489 | 5742589 | Radio apparatus | |||
| 490 | 5737317 | Communication system testing method | |||
| 491 | 5737165 | Apparatus for databus fault isolation | |||
| 492 | 5734341 | Encoding digital data | |||
| 493 | 5727006 | Apparatus and method for detecting and correcting reverse polarity, in a packet-based data communications system | |||
| 494 | 5726991 | Integral bit error rate test system for serial data communication links | |||
| 495 | 5724362 | Apparatus and method employing a window reset for excessive bit error rate alarm detection and clearing | |||
| 496 | 5715238 | Apparatus and method for detecting a loss of a telecommunications channel connection | |||
| 497 | 5712898 | D4 channel bank with multi-mode formatted, performance-monitoring communication bus | |||
1997 | |||||
| 498 | 5703409 | Error counting circuit | |||
| 499 | 5701410 | Method and system for detecting fault conditions on multiplexed networks | |||
| 500 | 5692021 | Encoding digital data | |||
| 501 | 5691998 | Data transmission protection circuit with error correction | |||
| 502 | 5682405 | Ones density monitor | |||
| 503 | 5680405 | Remote reporting system for digital transmission line elements | |||
| 504 | 5671228 | System for detecting non-coincidence of codes | |||
| 505 | 5666378 | High performance modem using pilot symbols for equalization and frame synchronization | |||
| 506 | 5661778 | Performance monitoring of DSO channel via D4 channel bank | |||
| 507 | 5657356 | Control signal detection method with calibration error and subscriber unit therewith | |||
| 508 | 5657346 | Transmission line driver test integrity circuit | |||
| 509 | 5655068 | Point-to-multipoint performance monitoring and failure isolation system | |||
| 510 | 5652760 | Error rate measuring apparatus | |||
| 511 | 5640401 | Communication circuit fault detector | |||
| 512 | 5636203 | Method and system for identifying fault locations in a communications network | |||
| 513 | 5629957 | Method and apparatus for simultaneously displaying distribution patterns of equalized output signals from multiple channels | |||
| 514 | 5623515 | Data communication system for reducing a risk of transmission errors | |||
| 515 | 5623497 | Bit error rate measurement apparatus | |||
| 516 | 5621758 | PWM Communication system | |||
| 517 | 5619550 | Testing within communication systems using an arq protocol | |||
| 518 | 5610923 | Method and device for finding spurious maintenance messages | |||
| 519 | 5600660 | Method for determining the number of defective digital bits (defective bit number) transmitted over a data-transmission path to be tested, and device for the carrying out of the method | |||
| 520 | 5600656 | Remote loopback apparatus and method for telephone line repeaters | |||
| 521 | 5598431 | Method and apparatus for signal quality detection in a communication system | |||
| 522 | 5598420 | Apparatus and method for generating a power signal for a power system from signals genenrated by a communication device | |||
1996 | |||||
| 523 | 5579369 | Facility type determination technique | |||
| 524 | 5579339 | Method for concurrent monitoring of multiple communications | |||
| 525 | 5574495 | Cable television data path error analyzer located at the set-top terminal | |||
| 526 | 5572555 | Serial code format optimized for remote control applications over noisy communications channel | |||
| 527 | 5570382 | Clock signal fault detector | |||
| 528 | 5568202 | System for echo cancellation comprising an improved ghost cancellation reference signal | |||
| 529 | 5559810 | Communication of data reception history information | |||
| 530 | 5555507 | Method for detecting non-linear behavior in a digital data transmission path to be examined | |||
| 531 | 5555248 | Tandem connection maintenance system | |||
| 532 | 5553059 | Network interface unit remote test pattern generation | |||
| 533 | 5550837 | Adaptive differential pulse code modulation system with transmission error compensation | |||
| 534 | 5548775 | System and method for adaptive active monitoring of high speed data streams using finite state machines | |||
| 535 | 5546425 | Transmission system for transmitting data by a link comprising intermediate equipments and an intermediate equipment for such a system | |||
| 536 | 5528635 | Synchronization detecting circuit | |||
| 537 | 5526410 | Method and system for determination of signal/noise ratio of telephone transmission line used for facsimile transmission | |||
| 538 | 5519830 | Point-to-multipoint performance monitoring and failure isolation system | |||
| 539 | 5517522 | Process for detecting the nature of data-falsifying interference | |||
| 540 | 5517518 | Method and arrangement for recognition of a coded transmitted signal | |||
| 541 | 5517510 | Method and apparatus for indicating uncorrectable errors to a target | |||
| 542 | 5515398 | Modem line probing signal techniques | |||
| 543 | 5513347 | Data transfer system | |||
| 544 | 5506870 | Signal acquisition detection method | |||
| 545 | 5504863 | Centralized network monitoring device for monitoring devices via intermediate monitoring devices by means of polling and including display means displaying screens corresponding to heirarchic levels of the monitored devices in a network | |||
| 546 | 5504761 | Apparatus for detecting error in a communications line | |||
| 547 | 5502653 | Testing data transmissions between fax modems through real time synchronization and resynchronization of asynchronous data | |||
| 548 | 5499339 | Process for determining the origin of bit errors in a data stream transmitted from a data source to a data receiver | |||
| 549 | 5497377 | Communication system and method of detecting transmission faults therein | |||
| 550 | 5490177 | Method and apparatus for determining signal quality | |||
| 551 | 5490148 | Bit error rate estimator | |||
| 552 | 5485583 | System for controlling data transfer by setting and decrementing a counter based on the number of error correction bits and transfer bit rate respectively | |||
| 553 | 5485470 | Communication circuit fault detector | |||
| 554 | 5483639 | Device for detecting transmission errors in balanced two-wire bus lines and two-bus interfaces | |||
| 555 | 5483237 | Method and apparatus for testing a CODEC | |||
1995 | |||||
| 556 | 5477531 | Method and apparatus for testing a packet-based network | |||
| 557 | 5473665 | Performance monitoring of DS0 channel via D4 channel bank | |||
| 558 | 5473329 | Performance monitoring for loops | |||
| 559 | 5463633 | Use of at commands to test modem with HP3065 | |||
| 560 | 5463631 | Error pulse width expanding circuit | |||
| 561 | 5461623 | Data transmission system with abnormality discrimination | |||
| 562 | 5453989 | Subscriber digital transmission system | |||
| 563 | 5450440 | Monitor system for digital communication apparatus | |||
| 564 | 5450416 | Apparatus and method for testing multifunction communications networks | |||
| 565 | 5446781 | Testing of subscriber lines in a digital switch | |||
| 566 | 5442697 | Digital data loopback device | |||
| 567 | 5432796 | Line Monitoring for SDH signals | |||
| 568 | 5423059 | Method for enhancing signal quality in a simulcast communication system | |||
| 569 | 5422876 | Out-of-band loopback control scheme | |||
| 570 | 5420886 | Digital transmission equipment | |||
| 571 | 5408475 | Modem with transient impairment detector | |||
| 572 | 5402440 | Processes for testing bi-directional serial transmissions, and circuits for their implementation | |||
| 573 | 5400361 | Signal acquisition detection method | |||
| 574 | 5398234 | DS-0 loop-back detection on a DS-1 line | |||
| 575 | 5394145 | Performance monitoring for loops | |||
| 576 | 5392314 | Process for determining the quality parameters of transmission link for digital data streams having a cellular structure | |||
| 577 | 5391387 | Process and apparatus for manufacturing shaped confectionery products | |||
| 578 | 5390199 | Advanced code error detection apparatus and system using maximal-length pseudorandom binary sequence | |||
| 579 | 5383177 | Packet switching testing method and apparatus | |||
1994 | |||||
| 580 | 5359609 | Quality check equipments for digital transmission links | |||
| 581 | 5359594 | Power-saving full duplex nodal communications systems | |||
| 582 | 5347522 | Method and apparatus for detecting pseudo noise pattern for remote loopback test | |||
| 583 | 5343461 | Full duplex digital transmission facility loop-back test, diagnostics and maintenance system | |||
| 584 | 5325397 | Error rate monitor | |||
| 585 | 5321722 | Multipoint connected communication system having function of retraining modems provided therein and method of retraining the modems | |||
| 586 | 5313497 | Method of detecting a disturbing signal for a digital data demodulator, and apparatus implementing such a method | |||
| 587 | 5305323 | Technique for digitally detecting bit-error densities that occur in a serial bit stream | |||
| 588 | 5289473 | Method for determining byte error rate | |||
| 589 | 5285459 | HDB3 code violation detector | |||
| 590 | 5282211 | Slip detection during bit-error-rate measurement | |||
| 591 | 5278823 | Method and apparatus for permitting intranework testing of internetwork functions | |||
1993 | |||||
| 592 | 5274668 | Integrated circuit demodulator component | |||
| 593 | 5271035 | Repeater supervision | |||
| 594 | 5260819 | Digital telemetry system and method for fault detection in optical transmission system | |||
| 595 | 5249186 | Apparatus for detecting the start of frame in bipolar transmission systems | |||
| 596 | 5228042 | Method and circuit for testing transmission paths | |||
| 597 | 5224128 | Method and circuit arrangement for monitoring the operating condition of an electro-optical transmission system | |||
| 598 | 5220581 | Digital data link performance monitor | |||
| 599 | 5218601 | Method for searching for alternate path in communication network | |||
| 600 | 5187811 | Error detection | |||
| 601 | 5179444 | System for echo cancellation comprising an improved ghost cancellation reference signal | |||
1992 | |||||
| 602 | 5172232 | Method and apparatus for communication channel identification and signal restoration | |||
| 603 | 5166890 | Performance monitoring system | |||
| 604 | 5163051 | Paired bit error rate tester | |||
| 605 | 5161151 | System and method for controlling multiplex communications between master station and slave stations | |||
| 606 | 5157665 | Integrated services digital network (ISDN) test device | |||
| 607 | 5152008 | Signal control apparatus capable of readily changing an apparatus output signal | |||
| 608 | 5148434 | Digital data generator | |||
| 609 | 5138616 | Continuous on-line link error rate detector utilizing the frame bit error rate | |||
| 610 | 5136591 | Measuring method and device for fault analysis of digital transmission paths | |||
| 611 | 5134612 | Digital communication terminal equipment | |||
| 612 | 5131010 | Voice guard digital voter for multiple site PST RF trunking system | |||
| 613 | 5128962 | Line interface circuit and a method of testing such a circuit | |||
| 614 | 5123020 | Phase synchronization pull-in system in bit error detecting apparatus | |||
| 615 | 5121211 | System for echo cancellation comprising an improved ghost cancellation reference signal | |||
| 616 | 5111298 | Method and apparatus for communication channel identification and signal restoration | |||
| 617 | 5099500 | Symbol detection and error correction coding in a local area network | |||
| 618 | 5093842 | Mechanism for estimating Es/No from pseudo error measurements | |||
| 619 | 5081666 | Method for measuring the bit error rate in the transmission of digital information | |||
1991 | |||||
| 620 | 5060226 | Telecommunications network test system | |||
| 621 | 5058143 | Digital communications systems | |||
| 622 | 5056090 | Data transmission apparatus to be connected to multiplexed transmission line | |||
| 623 | 5047859 | Method and apparatus for communication channel identification and signal restoration | |||
| 624 | 5027343 | Remote test access system for ISDN testing | |||
| 625 | 5023612 | Illegal sequence detection and protection circuit | |||
| 626 | 4993045 | Modem diagnostic loop | |||
| 627 | 4992973 | Data transmission apparatus with loopback topology | |||
| 628 | 4989949 | Arrangement for discriminating whether or not semiconductor laser is functional | |||
| 629 | 4989202 | ISDN testing device and method | |||
| 630 | 4985901 | Method and device for evaluating the safety margin of a digital video signal | |||
1990 | |||||
| 631 | 4972511 | Receiver test apparatus with test message injector | |||
| 632 | 4967412 | Serial data frame generator for testing telecommunications circuits | |||
| 633 | 4962509 | Code violation detection circuit for use in AMI signal transmission | |||
| 634 | 4956852 | Method for remote configuration of a modem | |||
| 635 | 4920537 | Method and apparatus for non-intrusive bit error rate testing | |||
| 636 | 4918685 | Transceiver arrangement for full-duplex data transmission comprising an echo canceller and provisions for testing the arrangement | |||
| 637 | 4918623 | Testing the performance of a communication line between two modems using modem processor | |||
| 638 | 4905172 | Method of generating and transmitting digitally distorted test signals | |||
| 639 | 4897831 | Data transmission/reception apparatus | |||
1989 | |||||
| 640 | 4876701 | Synchronization failure detection | |||
| 641 | 4868824 | Measurement of missed start-up rate and missed message rate | |||
| 642 | 4860308 | Modem communication system having main and secondary channels | |||
| 643 | 4852082 | Circuit arrangement for testing the operability of the data transmission facility | |||
| 644 | 4837779 | Communicator and communication method and system | |||
| 645 | 4825459 | Local loop test arrangement in an echo canceller based full duplex modem | |||
| 646 | 4825113 | Single transmission line bidirectional optical communication system | |||
| 647 | 4800562 | Circuit and method for monitoring the quality of data in a data stream | |||
| 648 | 4796278 | Repeater for digital communication system | |||
| 649 | 4796257 | Bipolar violation rate calculation method | |||
1988 | |||||
| 650 | 4791653 | Pseudorandom word sequence synchronizer | |||
| 651 | 4789948 | Method and apparatus for determining communications link quality and receiver tracking performance | |||
| 652 | 4783786 | CMI signal transmission system | |||
| 653 | 4771232 | Non-interruptive spectrum analyzer for digital modems | |||
| 654 | 4769807 | Loop back control system | |||
| 655 | 4756005 | Digital signal regenerator arranged for fault location | |||
| 656 | 4752926 | Orderwire detector for communication systems | |||
| 657 | 4751510 | Method and system for controlling a network of modems | |||
| 658 | 4748637 | Digital subscriber loop termination device | |||
| 659 | 4745603 | Code sequence generator for a digital transmission line fault location system | |||
| 660 | 4745601 | Digital service unit with secondary channel diagnostics | |||
| 661 | 4742518 | Fault location system for a digital transmission line | |||
| 662 | 4736377 | Method for determining reliability of high speed digital transmission by use of a synchronized low speed side channel | |||
| 663 | 4734676 | Method and device for detecting a particular bit pattern in a serial train of bits | |||
| 664 | 4733395 | Digital word generator | |||
1987 | |||||
| 665 | 4710924 | Local and remote bit error rate monitoring for early warning of fault location of digital transmission system | |||
| 666 | 4697265 | Error monitor circuit | |||
| 667 | 4688226 | Code error overlaying in digital transmission signals | |||
| 668 | 4688207 | Channel quality monitoring apparatus | |||
| 669 | 4677627 | Error correction scheme | |||
| 670 | 4677619 | Method and apparatus for supervising digital radio transmission line | |||
| 671 | 4675862 | Loop around data channel unit | |||
| 672 | 4658399 | Circuit arrangement designed to pick up the error rate in numerical transmission systems | |||
| 673 | 4656643 | Line interface circuit | |||
| 674 | 4654807 | Method of measuring communication channel impairement in polling applications | |||
| 675 | 4653070 | Channel monitoring circuit for use in a repeater station over radio digital transmission | |||
| 676 | 4651328 | Arrangement for supervising a CMI-code converter | |||
| 677 | 4646320 | Automatic digital strapping apparatus for data modems | |||
| 678 | 4642807 | Fault tolerant receiver | |||
1986 | |||||
| 679 | 4628507 | Bit error detection circuit for PSK-modulated carrier wave | |||
| 680 | 4626716 | Digital signal delay circuit | |||
| 681 | 4616362 | Logic for calculating bit error rate in a data communication system | |||
| 682 | 4604745 | Method of searching fault locations in digital transmission line | |||
| 683 | 4592044 | Apparatus and method for checking time slot integrity of a switching system | |||
| 684 | 4587653 | Circuit for controllable generation of pseudoerrors in bit processing | |||
| 685 | 4580263 | Signal quality monitoring device | |||
| 686 | 4578537 | Telecommunication apparatus serving as an interface between a digital computer and an analog communication medium | |||
| 687 | 4564933 | Supervision of digital transmission systems | |||
1985 | |||||
| 688 | 4558317 | Digital communication link monitoring device | |||
| 689 | 4551830 | Apparatus for providing loopback of signals where the signals being looped back have an overhead data format which is incompatible with a high speed intermediate carrier overhead format | |||
| 690 | 4549049 | Arrangement for testing a device provided with an echo canceller | |||
| 691 | 4542496 | Loop transmission system and method of controlling the loop-back condition thereof | |||
| 692 | 4534043 | Test tone detector apparatus and method modem using same | |||
| 693 | 4529979 | Remote return loop control in a data transmission system | |||
| 694 | 4524244 | Digital and voice telecommunication apparatus | |||
| 695 | 4507621 | Generating quasi-random sequences in AMI code | |||
| 696 | 4502142 | Apparatus for detecting errors in a digital data stream encoded in a double density code | |||
| 697 | 4498186 | Data set diagnostic system | |||
1984 | |||||
| 698 | 4490817 | Packet error rate measurements by distributed controllers | |||
| 699 | 4479217 | Message identification and data entry apparatus | |||
| 700 | 4468787 | Ternary data transmission system | |||
| 701 | 4449247 | Local orderwire facility for fiber optic communication system | |||
| 702 | 4445221 | Method and apparatus for measuring the frequency response of an element or elements in a digital transmission path | |||
| 703 | 4441185 | Monitoring method and device for a PCM regenerator having a code rule violation checking device | |||
| 704 | 4428076 | Method of and system for evaluating bit errors in testing a signal path | |||
1983 | |||||
| 705 | 4410986 | Error and status detection circuit for a digital regenerator using quantized feedback | |||
| 706 | 4410983 | Distributed industrial control system with remote stations taking turns supervising communications link between the remote stations | |||
| 707 | 4408226 | Test apparatus for monitoring digital transmissions | |||
| 708 | 4402084 | Regenerator having a code rule violation checking device | |||
| 709 | 4402082 | Automatic line termination in distributed industrial process control system | |||
| 710 | 4398299 | Data set network diagnostic system | |||
| 711 | 4398297 | Data set diagnostic system | |||
| 712 | 4394695 | Method and apparatus for evaluating recording systems | |||
| 713 | 4393508 | System for locally testing a modem employing frequency shift keying | |||
| 714 | 4390984 | Status check method for a data transmission system | |||
| 715 | 4387461 | Experientially determined signal quality measurement device for antipodal data | |||
| 716 | 4385384 | Modem diagnostic and control system | |||
| 717 | 4385383 | Error rate detector | |||
| 718 | 4385230 | Digital temperature effect generator | |||
| 719 | 4384354 | Noise margin measurement and error probability prediction | |||
| 720 | 4369523 | Remote control system of an optical repeater | |||
| 721 | 4367550 | Method for monitoring the bit error rate of a digital transmission system | |||
1982 | |||||
| 722 | 4363123 | Method of and apparatus for monitoring digital transmission systems in which line transmission errors are detected | |||
| 723 | 4351059 | Method for testing a digital data transmission line between two modems and a device for the application of said method | |||
| 724 | 4337457 | Method for the serial transmission of binary data and devices for its implementation | |||
| 725 | 4327356 | Arrangement for monitoring the performance of a digital transmission system | |||
| 726 | 4327258 | Method and apparatus for rapid evaluation of parameters affecting voiceband data transmission | |||
1981 | |||||
| 727 | 4296495 | Device for measuring the quality of a digital radio link | |||
| 728 | 4291403 | Digital implementation of parity monitor and alarm | |||
| 729 | 4276649 | Receiver for digital signals in line code | |||
| 730 | 4273970 | Intermodulation distortion test | |||
| 731 | 4273955 | System for in-service quantitative performance analysis of data communications system | |||
| 732 | 4271514 | Loopback test for data transmission paths | |||
| 733 | 4271513 | Method and apparatus for carrying out loopback test | |||
| 734 | 4264972 | Method and circuit for detecting errors in digital signals | |||
| 735 | 4247938 | Method for generating a pseudo-signal in an error rate supervisory unit and circuit for carrying out the same | |||
| 736 | 4247934 | Testing system for data transmission paths | |||
1980 | |||||
| 737 | 4242750 | Process for testing a data transmission system employing a test loop | |||
| 738 | 4238779 | Data transmission and reception system | |||
| 739 | 4234954 | On-line bit error rate estimator | |||
| 740 | 4232387 | Data-transmission system using binary split-phase code | |||
| 741 | 4221939 | Method and apparatus for determining the tuned frequency of a digital repeater | |||
| 742 | 4218771 | Automatic clock positioning circuit for a digital data transmission system | |||
| 743 | 4204228 | Digital testing apparatus | |||
| 744 | 4200838 | Apparatus for evaluating the error rate of binary digital signals | |||
| 745 | 4188615 | Bit error detecting circuit for use in a digital signal transmission line | |||
1979 | |||||
| 746 | 4178582 | Digital signal transmitter/receiver system including programmable self-test capability | |||
| 747 | 4177447 | Device for detecting errors in a digital transmission system | |||
| 748 | 4158193 | Data transmission test set with synchronization detector | |||
| 749 | 4143354 | Detection of errors in digital signals | |||
1978 | |||||
| 750 | 4127816 | Carrier detect and automatic loopback circuit | |||
| 751 | 4125764 | Transversal correlator error detector | |||
| 752 | 4100531 | Bit error rate measurement above and below bit rate tracking threshold | |||
| 753 | 4097697 | Digital signal performance monitor | |||
| 754 | 4093940 | System and equipment for quality checking of a digital connection circuit | |||
| 755 | 4091240 | Bit error rate performance monitor units in digital transmission links | |||
| 756 | 4091239 | Bit error rate performance monitor units in digital transmission links | |||
| 757 | 4086566 | Error detector for modified duobinary signals | |||
| 758 | 4070647 | Error measurement for digital systems | |||
| 759 | 4070646 | Pulse error detector | |||
| 760 | 4070554 | Digital testing and power control in a digital communication system | |||
| 761 | 4068172 | Method of and means for measuring distortion of binary and ternary signals | |||
1977 | |||||
| 762 | 4064459 | Method of automatically testing the serviceability of a data transmission system | |||
| 763 | 4059729 | Method and system for selectively accessing multiplexed data transmission network for monitoring and testing of the network | |||
| 764 | 4055808 | Data communications network testing system | |||
| 765 | 4053723 | Method and apparatus for measuring the bit error frequency in a cable caused by crosstalk between line pairs during transmission of a 3-level coded PCM signal | |||
| 766 | 4039751 | Method and apparatus for closed loop testing of first and second modulators and demodulators | |||
| 767 | 4034340 | System for determining the quality of transmission of incoming digital message signals | |||
| 768 | 4034195 | Test apparatus and method | |||
| 769 | 4028536 | SNAIAS digital data test set | |||
| 770 | 4022988 | Fault locating apparatus for digital transmission system | |||
| 771 | 4006304 | Apparatus for word synchronization in an optical communication system | |||
| 772 | 4001525 | Arrangement for testing telecommunication repeaters | |||
1976 | |||||
| 773 | 3987395 | Arrangement of high frequency pulse regenerative repeaters | |||
| 774 | 3986168 | Multichannel error signal generator | |||
| 775 | 3976835 | Supervisory systems for telecommunication line transmission system | |||
| 776 | 3969582 | System for automatic synchronization of blocks transmitting a series of bits | |||
| 777 | 3965309 | Test system for a T carrier type telephone PCM communications system | |||
| 778 | 3965294 | Method of and apparatus for testing transmission line carrying bipolar PCM signals | |||
| 779 | 3952163 | Method and apparatus for testing in FDM system | |||
| 780 | 3943348 | Apparatus for monitoring the operation of a data processing communication system | |||
| © 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017 | |||||