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2017

19603174Error control method, medium access control (MAC) frame designing method, and terminal registration method in wireless communication system, and recording medium
29603143Apparatus and method for allocating resources in a single carrier-frequency division multiple access system
39584257Method for balancing the ratio Eb/I in a service multiplexing CDMA system and telecommunication systems using same
49578642Adaptive transmission device using limited feedback information in a mobile communication system, and a method thereof
59565678Apparatus and method for allocating resources in a single carrier-frequency division multiple access system
69559758Transmission/reception apparatus and method for supporting MIMO technology in a forward link of a high rate packet data system
79548851Multi-antenna transmission for spatial division multiple access
89538508Sequence generation and transmission method based on time and frequency domain transmission unit

2016

99532386Initial access channel for scalable wireless mobile communication networks
109525529Ultra-wide bandwidth system and method for in-premises wireless networking
119525517Method, device and system for assigning ACK channels to users
129521672Apparatus and method for allocating resources in a single carrier-frequency division multiple access system
139520981Method and apparatus for providing automatic control channel mapping
149515698Ultra-wideband frequency position modulation using nonlinear compressed sensing
159510348Apparatus and method for allocating resources in a single carrier-frequency division multiple access system
169485070Method and apparatus for transmitting and receiving different signal types in communication systems
179485064Communication method and radio transmitter
189465097Systems and methods for providing ADS-B mode control through data overlay
199444592Method and apparatus for allocating a plurality of data symbols in a wireless communication system
209426013OFDM communications methods and apparatus
219426012Signaling method in an OFDM multiple access system
229413506Method and apparatus for allocating resources in wireless communication system
239413505Method and apparatus for transmitting SRS in LTE TDD system
249413504Method and apparatus for transmitting SRS in LTE TDD system
259374205Inter-cell interference reduction
269374130Method and apparatus for triggering a ranked transmission
279369909Method and apparatus for mitigating signal interference in a feedback system
289344211OFDMA with adaptive subcarrier-cluster configuration and selective loading
299332542Apparatus and method for allocating resources in a single carrier-frequency division multiple access system
309316722Systems and methods for providing ATC overlay protocols
319306705Method, device and system for assigning ACK channels to users
329301283Method and apparatus for accessing an uplink random access channel in a single carrier frequency division multiple access system
339300385OFDM signal transmission method and apparatus
349281917Shared control channel structure
359264177Method and apparatus for reporting feedback information for multi-carrier operation
369252859Method for signalling resources to a radio station and radio station therefor
379246664Receiver with multi-spectrum parallel amplification
389231741Reconfigurable notched spectrum for wireless data transmission

2015

399226237Method for channel assignments in wireless systems
409215052Method of allocating radio resources in multi-carrier system
419209861Ultra-wideband frequency position modulation using nonlinear compressed sensing
429203669Apparatus and method using multiple modulation schemes in an OFDM/OFDMA wireless network
439197302MIMO communication method
449197300Wireless precoding methods
459185713Apparatus and method for transmitting and receiving a RACH signal in SC-FDMA system
469184808Mimo beamforming-based single carrier frequency division multiple access system
479178681Method of separating sources in a multisource system
489173114OFDM system with reverse link interference estimation
499166757Method and apparatus for transmitting SRS in LTE TDD system
509166756Method and apparatus for transmitting SRS in LTE TDD system
519160510Method and apparatus for transmitting SRS in LTE TDD system
529160509Method and apparatus for transmitting SRS in LTE TDD system
539160508Method and apparatus for transmitting SRS in LTE TDD system
549160507Method and apparatus for transmitting SRS in LTE TDD system
559160506Method and apparatus for transmitting SRS in LTE TDD system
569160505Method and apparatus for transmitting SRS in LTE TDD system
579148874Communication method and radio transmitter
589148477Methods and apparatus for communicating in a wireless system
599144060Resource allocation for shared signaling channels
609143305Pilot signal transmission for an orthogonal frequency division wireless communication system
619130810OFDM communications methods and apparatus
629130791Uplink channel estimation using a signaling channel
639130734Multi-tone concatenated spread spectrum communications
649130716Reference symbol distribution method and apparatus
659130705Transmitting high rate data within a MIMO WLAN
669125194Radio communication system, base station apparatus, mobile station apparatus, and radio communication method
679124400Method and apparatus for transmitting/receiving uplink signaling information in a single carrier FDMA system
689118531Method of generating random access preambles in wireless communication system
699112660Maximum likelihood detection
709107124Delivery of multicast and broadcast services concurrently with unicast data
719106287Unitary precoding based on randomized FFT matrices
729100152Apparatus for dimensioning the control channel for transmission efficiency in communications systems
739094842Systems and method for orthogonal frequency divisional multiplexing
749088388Method for frequency division duplex communications
759088381Ultra-wide bandwidth system and method for in-premises wireless networking
769072096Apparatus and method for allocating resources in a single carrier-frequency division multiple access system
779072095Apparatus and method for allocating resources in a single carrier-frequency division multiple access system
789071414Method and apparatus for distinguishing broadcast messages in wireless signals
799065714Transmission of information using cyclically shifted sequences
809054867Method, device and system for assigning ACK channels to users
818995295Using maximal sum-rate mutual information to optimize JCMA constellations

2013

828611340Smooth edge distortion in broadband channel interpolation via virtual pilot extrapolation

2009

837600050Information processing apparatus, information processing apparatus control method, information processing program, and network system

2008

847450663Interpolation for use in channel estimation

2006

857020091Apparatus, and associated method, for estimating channel conditions of a communication channel of a communication system

2005

866967937Collision-free multiple access reservation scheme for multi-tone modulation links
876967936Uplink timing synchronization and access control for a multi-access wireless communication system
886965637System and method for controlling line driver power in a shared digital subscriber line modem
896961364Base station identification in orthogonal frequency division multiplexing based spread spectrum multiple access systems
906956835Multi-carrier arrangement for high speed data
916956813Radio communication system, radio base-station apparatus, mobile radio-station apparatus, radio zone assignment method, and radio communication method
926954481Pilot use in orthogonal frequency division multiplexing based spread spectrum multiple access systems
936954422Comb-form spectrum communication systems using repeated complementary sequence modulation
946952595Digital broadcast channel reception system and method and portable terminal for use in such system
956950388Apparatus and method for symbol alignment in a multi-point OFDM/DMT digital communications system
966950387Communication method, system, and apparatus that combines aspects of cyclic prefix and zero padding techniques
976947769Radio base station device and radio communication method
986947372Multi-carrier communication system with sample rate pilot carrier and time division duplexing frame rate pilot carrier
996944141Systems and method for phase multiplexing in assigning frequency channels for a wireless communication network
1006944118System and method for communicating digital information using time-and-frequency-bounded base functions
1016940918Compatibility mode pulse signal generation circuit and method
1026940916Wideband analog quadrature modulator/demodulator with pre-compensation/post-compensation correction
1036940896Method for seamlessly combining adjacent filters in a frequency channelizer
1046940859Line termination equipment
1056940827Communication system using OFDM for one direction and DSSS for another direction
1066937623Method and apparatus for coordinating multi-point to point communications in a multi-tone data transmission system
1076937617Apparatus and method for trellis encoding data for transmission in digital data transmission systems
1086937558Transmitter apparatus and receiver apparatus and base station making use of orthogonal frequency division multiplexing and spectrum spreading
1096934368Multi-band modem
1106934345Apparatus, method and system for correlated noise reduction in a trellis coded environment
1116925134System and method for signal synchronization in a communication system
1126925127Method and apparatus for subtracting multiple rays of multiple interfering received signals
1136925067Configuration of overhead channels in a mixed bandwidth system
1146922454Direct conversion radio receiving system using digital signal processing for channel filtering and down conversion to base band
1156922388Signal construction, detection and estimation for uplink timing synchronization and access control in a multi-access wireless communication system
1166920336Broadband driver
1176920185Distributed block frequency converter
1186917647Activation of multiple xDSL modems with power control measurement
1196917559Constellation mapping apparatus and method
1206914952Superframe alignment to a pre-existing ADSL data exchange
1216914539System and method for a low rate, in-band broadcast communication for medical telemetry
1226904098Linear phase robust carrier recovery for QAM modems
1236904082DSL rate adaptation
1246898249Method and apparatus for AM digital audio broadcasting with amplitude scaled tertiary subcarriers
1256898207Techniques for communicating information using Hermite-Gaussian basis functions
1266891896Embedded signal constellations
1276888815Subscriber unit for compressing and transmitting high speed data
1286885630Combined simulcasting and dedicated services in a wireless communication system
1296882690Soft trellis slicer for improving the performance of a decision-directed phase tracker
1306882619Interference suppressing OFDM method for wireless communications
1316876645Delay and channel estimation for multi-carrier CDMA system
1326870911Transceiver
1336870826Multicarrier transfer system and multicarrier modulation method
1346870808Channel allocation in broadband orthogonal frequency-division multiple-access/space-division multiple-access networks
1356868118Discrete multi-tone processor in asymmetric digital subscriber line modem
1366865193Video transmission system and method utilizing phone lines in multiple unit dwellings
1376862451Cellular radio signal with additional channel assigned to downlink, corresponding method, system and base station
1386862261Zipper type VDSL system
1396859502Transmitting and receiving apparatus capable of the suppression of the microphonic noise in digital transmission system
1406856652Bandwidth efficient QAM on a TDM-FDM system for wireless communications
1416856590OFDM transmission device and OFDM transmission method
1426853629Method for frequency division duplex communications
1436847678Adaptive air interface waveform
1446845482Interleaver for turbo decoder
1456845082Peak to average power ratio reduction in communication systems
1466844838Digital to analog converter having a low power semi-analog finite impulse response circuit
1476839330Method and apparatus for improving asynchronous transfer mode operation over noisy, high speed wireless links

2004

1486834047Data communication apparatus and method in multi-carrier CDMA communication system
1496834043Method and device for exploiting transmit diversity in time varying wireless communication systems
1506826409Method and apparatus for implementing measurement based dynamic frequency hopping in wireless communication systems
1516819706Control device for controlling power level between frequency assignment in radio frequency receiving device of mobile radio communication base station system in CDMA system
1526819658Method and apparatus for segmentation, reassembly and inverse multiplexing of packets and ATM cells over satellite/wireless networks
1536816555Signal component demultiplexing apparatus, filter apparatus, receiving apparatus, communication apparatus, and communication method
1546813326Data transmission system, data transmission communication station, and data transmission method
1556813317Multicarrier transmitting method and multicarrier transmitter circuit
1566813259Method and apparatus for minimizing delay variance via time divided transmissions
1576813254Methods and apparatus for wireless communication using code division duplex time-slotted CDMA
1586810070Selective multi-carrier direct sequence spread spectrum communication systems and methods
1596810030Dynamic and smart spreading for wideband CDMA
1606810006OFDM signal organized so as to simplify reception
1616807234Method and apparatus for constellation mapping and bitloading in multi-carrier transceivers, such as DMT-based DSL transceivers
1626807146Protocols for scalable communication system using overland signals and multi-carrier frequency communication
1636804267Transceiver training for DSL modems under TCM-ISDN interference
1646801570Intelligent rate option determination method applied to ADSL transceiver
1656801500Method and apparatus for providing reserved rates to multiple flows on a network interface
1666798848Architecture for multi-carrier receiver
1676798844Correction of phase and amplitude imbalance of I/Q modulator
1686795392Clustered OFDM with channel estimation
1696792403Method and apparatus for compressing and transmitting ultra high speed data
1706791966Signal coding
1716791964Multicarrier CDMA rake receiver apparatus
1726788743Modulation of a primary data channel reference clock to form a separate data communication channel
1736785300Delay compensation
1746785248Spread spectrum communication method and spread spectrum communication apparatus
1756782039Vertical adaptive antenna array for a discrete multitone spread spectrum communications system
1766782005Communication system and communication method
1776781470Tunable oscillator
1786771590Communication system clock synchronization techniques
1796768900Duplex satellite communication using a single frequency or pair
1806765899Method and an apparatus for clipping signals in a CDMA system
1816760342Channelizer for a multi-carrier receiver
1826759969Fiberoptic transceiver system
1836756926Optical transmitter and code conversion circuit used therefor
1846754288Line receiver with improved dynamic range
1856754284Method and apparatus for minima enlargement
1866751444Method and apparatus for adaptive carrier allocation and power control in multi-carrier communication systems
1876751254Activation of multiple xDSL modems with power control measurement
1886751187Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel transmission
1896748011Efficient multicarrier filter
1906744824Multiple access method, devices for performing this method and communications systems using these methods
1916741646Modulation technique for transmitting a high data rate signal, and an auxiliary data signal, through a band limited channel
1926741604ADSL transmission in the presence of low-frequency network services
1936731695Systems and methods for implementing receiver transparent Q-mode
1946731678System and method for extending the operating range and/or increasing the bandwidth of a communication link
1956731614Orthogonal code division multiple access waveform format for use in satellite based cellular telecommunications
1966728321Receiving device for angle-modulated signals
1976726297OFDMA signal transmission apparatus and method
1986724827Low cost interoperable satellite digital audio radio service (SDARS) receiver adapted to receive signals in accordance with advantageous frequency plan
1996721376Signal encoding for transmission of multiple digital signals over single physical medium
2006715124Trellis interleaver and feedback precoder
2016714520System, apparatus method for multi-carrier transmission
2026711140Method and apparatus for fast acquisition and synchronization of transmission frames
2036711122Frequency offset differential pulse position modulation
2046711120Orthogonal frequency division multiplexing based spread spectrum multiple access
2056701163Base station apparatus and method for suppressing peak electric power
2066700937Iterative decoding
2076694148Transmit power control for MCPA-equipped based stations
2086693992Line probe signal and method of use
2096693970QAM modulator
2106693957Adaptive front end for discrete multitone modem
2116693951System and method for generating signal waveforms in a CDMA cellular telephone system
2126690717Multi-tone transceiver system using two steps of DMT-CMFB
2136690680Communication system signal synchronization techniques
2146686879Method and apparatus for transmitting and receiving signals having a carrier interferometry architecture
2156683914Method for convolutive encoding and transmission by packets of a digital data series flow, and corresponding decoding method device
2166680966Spread-spectrum transmission system with filtered multi-carrier modulation
2176678334Methods of reducing the complexity of trellis-based scalar-vector quantizers
2186677862Transmitter tolerant to crystal variations
2196674768Data transmission device and data transmission method capable of minimizing delay of fast data
2206674732Transmitting method, receiving method, transmitter, and receiver

2003

2216665308Apparatus and method for equalization in distributed digital data transmission systems
2226662367Poly-phase filters in multicarrier communication systems
2236658044Frequency hopping communication device and frequency hopping method
2246658024Data transmission device and data transmission method capable of minimizing delay of fast data both in normal conditions and noisy conditions
2256657949Efficient request access for OFDM systems
2266654408Method and system for multi-carrier multiple access reception in the presence of imperfections
2276650717Asymmetric pulse amplitude modulation transmission of multi-stream data embedded in a hybrid IBOC channel
2286650697Wireline communication system and method of frequency allocation therein
2296650658Controlled aliasing to simplify service selection
2306643281Synchronization preamble method for OFDM waveforms in a communications system
2316636555Amplitude limitation
2326636525Destination dependent coding for discrete multi-tone modulation
2336633614Multicarrier personal access communication system
2346633545System and method for determining the data rate capacity of digital subscriber lines
2356631168Generating matrices to be used for the random orthogonal transformation of blocks of data in a transmission chain
2366628673Scalable communication system using overlaid signals and multi-carrier frequency communication
2376625222Apparatus and method for high-speed wireless upstream data transmission using CATV-compatible modems
2386622282Trellis coding with one-bit constellations
2396621346Impedance matching for programmable gain amplifiers
2406618774Computer signal transmission system
2416618429System and method for generating signal waveforms in a CDMA cellular telephone system
2426614776Forward error correction scheme for high rate data exchange in a wireless system
2436611565Broadband transmitter for a signal consisting of a plurality of digitally modulated carriers
2446608835Communication system with multicarrier telephony transport
2456606351Ingress protection in a communication system with orthogonal carriers
2466603822Communicating errors in a telecommunications system
2476603806Method and apparatus for high data rate wireless communications over wavefield spaces
2486600776Vertical adaptive antenna array for a discrete multitone spread spectrum communications system
2496598198Deinterleaving device that releases a plurality of types of interleaving simultaneously
2506597750Opposite polarization interference cancellation in satellite communication
2516594322Method of distributed loop control for a multicarrier telephony transport
2526594318Method and apparatus for computing soft decision input metrics to a turbo decoder
2536590871Multi-carrier modulation apparatus and transmitter using the same
2546587502System and method for profile selection during fast retrain of a wideband modem
2556584305Direct conversion radio receiving system using digital signal processing for channel filtering and down conversion to base band
2566584144Vertical adaptive antenna array for a discrete multitone spread spectrum communications system
2576574647Filter arrangement
2586574207Method for subscriber unit compressing and transmitting high speed data
2596570929Power control scheme for maximizing carrier signal-to-noise ratio in multicarrier transmitters
2606567476Data synchronisation process, and transmission and reception interfaces
2616567464Fast retrain based on communication profiles for a digital modem
2626567383Header structure for TDD systems
2636567374Data and pilot mapping in an OFDM system
2646563880Method and system for simultaneously broadcasting and receiving digital and analog signals
2656563859Receiver and receiving method in multi-carrier spread-spectrum communications
2666560209Method for frequency division duplex communications
2676553019Communications system employing orthogonal frequency division multiplexing based spread sprectrum multiple access
2686553011Cellular multicarrier wireless communication system
2696549784Method and apparatus for implementing measurement based dynamic frequency hopping in wireless communication systems
2706549581Transmitter and method to cancel interference in OFDM communication
2716546249Seamless two-way roadway communication system
2726546061Signal transformation method and apparatus
2736545997Transmission method and transmission apparatus for transmitting signals on the basis of a OFDM/TDMA-system with pilot symbols
2746542581Method for controlling the transmission power in a digital subscriber line
2756542554Multiple description trellis coded quantization
2766542485Methods and apparatus for wireless communication using time division duplex time-slotted CDMA
2776542460Relating to multidirectional communication systems
2786538985Channel reservation media access control protocol using orthogonal frequency division multiplexing
2796535715Hybrid/fiber coax video and telephony communication system with poly-phase filtering
2806535501Transmission method and transmission apparatus for transmitting signals on the basis of a OFDM/TDMA-system in a GSM/system
2816535497Methods and systems for multiplexing of multiple users for enhanced capacity radiocommunications
2826532277Method for controlling DSL transmission power
2836529559Reduced soft output information packet selection
2846529488Multiple frequency allocation radio frequency device and method
2856529303Optical communications networks utilizing frequency division multiplexing
2866526383Method and apparatus for compressing and transmitting high speed data
2876522869Transmission apparatus
2886522697Use of higher order modulation techniques to transmit large aggregate data rates on an optical link with relatively low speed electronics
2896522637System and method for allocating a carrier wave frequency of one channel between two carrier wave frequencies of another channel
2906520744Method and apparatus for improving performance of a splitterless asymmetric digital subscriber line (ADSL)
2916519292Transmission method, transmitter and receiver
2926519291Reduction of interference in discrete multi-tone (DMT) based communications systems
2936515960Radio communication system
2946512737Stacked carrier discrete multiple tone communication system
2956512307Motor vehicle data transmission system and data transmission method
2966510229Communication system with multicarrier telephony transport
2976510175In-band on-channel digital broadcasting
2986507730Communication device and a method for simultaneous transmission of speech and data
2996507608Multi-line ADSL modulation
3006507606Asymmetric digital subscriber line methods suitable for long subscriber loops
3016507199Method for measuring the operating properties of a subscriber line module for high-bit-rate data transmission

2002

3026501791Method and apparatus for allocating tones to a plurality of users in a multi-tone modem communications system
3036498807Method and apparatus for transmitting data from a plurality of users in a multi-tone modem communications system
3046498788Method and a radio terminal for interaction with a service provider
3056493358Apparatus and method for demultiplexing a frequency division multiplexed input signal and polyphase digital filter network therefor
3066487405Communication system with multicarrier telephony transport for controlling a plurality of service units
3076487181Method and apparatus for transmitting and receiving information in a time slot
3086486985Method for transmitting an additional data signal and a useful data signal in an optical network
3096483817Digital combining of forward channels in a base station
3106480552Soft output metrics generation for symbol detectors
3116480528Automatic gain control for improved decoding of multi-carrier signal
3126480475Method and system for accomodating a wide range of user data rates in a multicarrier data transmission system
3136477669Method and apparatus for adaptive control of forward error correction codes
3146477354Communication system transmitting modulated orthogonal carries with service units that scan spectrum to identify assigned band
3156473506Signaling using phase rotation techniques in a digital communications system
3166473495Apparatus and method for coupling analog subscriber lines connected to a private branch exchange for transmission of network data signals in a home network
3176473438Method and apparatus for coordinating multi-point to-point communications in a multi-tone data transmission system
3186473418Orthogonal frequency division multiplexing based spread spectrum multiple access
3196473394Apparatus and method for bandwidth management in a multi-point OFDM/DMT digital communications system
3206473214Methods of and apparatus for optical signal transmission
3216467092Method for adjusting power in a communication system with multicarrier telephony transport
3226466606Method and apparatus for performing search acquisition in a multi-carrier communication system
3236459684Multiplexed codec for an ADSL system
3246459678System and method for providing near optimal bit loading in a discrete multi-tone modulation system
3256456666Signal encoding for transmission of multiple digital signals over single physical medium
3266453472Method and apparatus for performing periodic ranging for cable modems
3276452986Detector tolerant of frequency misalignment
3286452977Method and apparatus for AM compatible digital broadcasting
3296452945Electrical add-drop multiplexing for optical communications networks utilizing frequency division multiplexing
3306449316Communication device and interference rejection method therein
3316449261Time division duplexed multicarrier transmission
3326449246Multicarrier personal access communication system
3336449244Implementation of orthogonal narrowband channels in a digital demodulator
3346445750Technique for communicating digitally modulated signals over an amplitude-modulation frequency band
3356445693Method and apparatus for estimating power of first adjacent analog FM interference in an in-band on-channel (IBOC) communication system
3366442224Mixing and separating method for a plurality signals
3376442173Timing recovery scheme for a discrete multitone transmission system
3386434583Fast fourier transform apparatus and method
3396434189Communications system and method for reducing the effects of transmitter non-linear distortion on a received signal
3406430391Duplex satellite communication using a single frequency or pair
3416430227FM in-band-on-channel digital audio broadcasting method and system
3426430199Method and system for distributing telephone and broadband services over the copper pairs within a service location
3436430148Multidirectional communication systems
3446426980Method and apparatus for communicating a call
3456424674Multi-tone transciever for multiple users
3466421392Single-source multidrop communication system
3476418558Hybrid fiber/coax video and telephony communication
3486415133Acquisition and tracking in communication system with multicarrier telephony transport
3496411653Cascaded polyphase DFT-filter band for a wireless telecommunications system
3506411645Modulation apparatus of multicarrier direct sequence spread spectrum communication system
3516408033Method and apparatus for superframe bit allocation
3526408016Adaptive weight update method and system for a discrete multitone spread spectrum communications system
3536407843System and method for spectrally efficient transmission of digital data over optical fiber
3546404774Method using low spectrum selectively for providing both ADSL and POTS service
3556404357Digital/analogue communication system for increasing transfer efficiency of digital sample data
3566400750Base station system and data transmission method of multicarrier CDMA/FDM hybrid system and mobile communication system using same
3576400679Communication resource allocation method and apparatus
3586396826Orthogonal code division multiple access waveform format for use in satellite based cellular telecommunications
3596396803Modulation methods and structures for wireless communication systems and transceivers
3606393451Flexibility enhancement to the modified fast convolution algorithm
3616393066Efficient digital channelizer system and method of operation thereof
3626393065Coding and decoding methods and devices and equipment using them
3636389000Method and apparatus for transmitting and receiving high speed data in a CDMA communication system using multiple carriers
3646385190Mobile communications system which uses TDMA for speech data and OFDM for control/extended data
3656385189Method and apparatus for compressing and transmitting high speed data
3666381236Bi-directional digital transmission system and bi-directional digital transmission method
3676377566OFDM subcarrier hopping in a multi service OFDM system
3686377557Orthogonal code division multiple access waveform format for use in satellite based cellular telecommunications
3696373861Frequency synchronizing device for OFDM/CDMA system
3706373831Systems and methods of channel coding and inverse-multiplexing for multi-carrier CDMA systems
3716370211Method and apparatus for facilitating reception of a signal on one of a plurality of contiguous channels
3726366589Multiple parallel asymmetric interfaces with reversed asymmetric links
3736366585Distributed control in a communication system
3746366309Method for the terrestrially transmitting digital signals
3756363124Phase-noise compensated digital communication receiver and method therefor
3766359906Providing digital services to telephone subscribers
3776359525Modulation technique for transmitting multiple high data rate signals through a band limited channel
3786356562High-speed communications system for providing voice and data services
3796356555Apparatus and method for digital data transmission using orthogonal codes
3806353626Methods and apparatus for providing non-uniform de-multiplexing in a multi-carrier wide band CDMA system
3816351509Method and apparatus for reducing power consumption of digital subscriber line modems
3826351451Digital multi-channel demultiplexer/multiplexer (MCD/M) architecture
3836349118Digital channelizer having efficient architecture for cyclic shifting and method of operation thereof
3846347236Remote wireless unit having reduced power operating mode for a discrete multitone spread spectrum communications system
3856347071Time division multiplexed transmission of OFDM symbols
3866345071Fast retrain based on communication profiles for a digital modem
3876339599Collision handling scheme for discrete multi-tone data communications network
3886337884Circuitry for allowing two drivers to communicate with two receivers using one transmission line
3896337855Method, transmitter and receiver for transmitting training signals in a TDMA transmission system
3906336201Synchronization in a communications system with multicarrier telephony transport

2001

3916334219Channel selection for a hybrid fiber coax network
3926334060Multi-channel or split-frequency, low frequency, telemetry circuit and method between transmitters and receivers
3936331974Chaotic digital code-division multiple access (CDMA) communication systems
3946330289System for improving base station amplifier performance
3956330241Multi-point to point communication system with remote unit burst identification
3966324222Digital receiver with polyphase structure
3976324212Apparatus using low spectrum selectively for providing both ADSL and POTS service
3986324206Method and apparatus for spreading and despreading data in a spread spectrum communication system
3996323978Robust variable-bit-rate optical channel overhead
4006320417Multiple-bit, current mode data bus
4016317409Residue division multiplexing system and apparatus for discrete-time signals
4026314102Telecommunications system for providing both narrowband and broadband services to subscribers
4036310909DSL rate adaptation
4046307890High density FM subcarrier modulation with standardized network layer
4056307868Apparatus and method for SCDMA digital data transmission using orthogonal codes and a head end modem with no tracking loops
4066307851System for radio transmission of digital signals between a plurality of subscriber stations and base station
4076304593Adaptive modulation scheme with simultaneous voice and data transmission
4086304581Interleaving method and apparatus for orthogonal transmit diversity and multi-carriers CDMA communication systems
4096300795Multiple-bit, current mode data bus
4106298036Multiplex transmission system wherein analog signal is transformed to base band, random-transformed and superimposed on dispersed signal points in vector signal space
4116292651Communication system with multicarrier transport distribution network between a head end terminal and remote units
4126289056Broadband multicarrier modulator and corresponding programming method
4136289055Method for transmitting digital signals
4146289038Parallel hopping hybrid direct sequence/slow frequency hopping CDMA system
4156285720Method and apparatus for high data rate wireless communications over wavefield spaces
4166285654Apparatus and method for symbol alignment in a multi-point OFDM or DMT digital communications system
4176282683Communication system with multicarrier telephony transport
4186282237Multiple transmission system wherein analog signal is transformed to base band, random-transformed and superimposed on dispersed signal points in vector signal space
4196282185Transmitting and receiving method and radio system
4206282167OFDM signal organized so as to simplify reception
4216279158Dynamic bandwidth allocation
4226275990Transport of payload information and control messages on multiple orthogonal carriers spread throughout substantially all of a frequency bandwith
4236275509Masked signal transceiver
4246275067Multiple-bit, current mode data bus
4256269105Use of features to represent independent bit streams or groups of bits in data transmission systems
4266266687Flexibility enhancement to the modified fast convolution algorithm
4276256302Method for the common transmission of digital and analogue modulated radio broadcasting and/or television broadcasting signals
4286256290Multi-carrier CDMA transmission system with frequency and transmit diversity
4296252910Bandwidth efficient QAM on a TDM-FDM system for wireless communications
4306247035Reduced complexity and increased flexibility modified fast convolution algorithm
4316246713Frequency-hopping in a bandwidth-on-demand system
4326246664Modulator for modulating digital signals
4336246439Transparent embedment of data in a video signal
4346243397Multi-carrier PC-CDMA system
4356240179Voice and data communications
4366236691Signal demodulation method and apparatus
4376233254Use of feature characteristics including times of occurrence to represent independent bit streams or groups of bits in data transmission systems
4386226322Analog receive equalizer for digital-subscriber-line communications system
4396226302Multiplex transmission system wherein analog signal is transformed to base band, random-transformed and superimposed on dispersed signal points in vector signal space
4406222828Orthogonal code division multiple access waveform format for use in satellite based cellular telecommunications
4416216019Remote wireless unit having reduced power operating mode
4426215828Signal transformation method and apparatus
4436215815Band insertion and precancellation technique for simultaneous communications of analog frequency-modulated and digitally modulated signals
4446212201Method and apparatus for dynamic allocation of transmission bandwidth resources and for transmission of multiple audio signals with a video signal
4456211919Transparent embedment of data in a video signal
4466208695Method for reception of multicarrier signals and related apparatus
4476208635Network for transferring data packets and method for operating the network
4486205133Flexible wideband architecture for use in radio communications systems
4496201830Low computation idle transmission method for DSL modems
4506201785Process for transmitting a digitized signal according to OFDM type multicarrier modulation, transmitter and receiver for the implementation of the said process
4516195341Communication method, base station and terminal apparatus
4526192026Medium access control protocol for OFDM wireless networks
4536188717Method of simultaneous radio transmission of digital data between a plurality of subscriber stations and a base station
4546184714Multiple-bit, current mode data bus
4556178175Circuit array and method for creating a data feedback channel from receiver to transmitter in a common frequency network
4566175555Transmit/receive compensation
4576172994Method and apparatus for creating a composite waveform

2000

4586167034Rate adaptive digital subscriber line (RADSL) modem
4596163276System for remote data collection
4606160839Adaptive weight update method for a discrete multitone spread spectrum communications system
4616157680Audio distortion canceler method and apparatus
4626154456Apparatus and method for digital data transmission using orthogonal codes
4636151368Phase-noise compensated digital communication receiver and method therefor
4646151365Information detecting apparatus and method
4656151335Modulation switching for DSL signal transmission
4666141317Apparatus and method for bandwidth management in a multi-point OFDM/DMT digital communications system
4676137839Variable scaling of 16-bit fixed point fast fourier forward and inverse transforms to improve precision for implementation of discrete multitone for asymmetric digital subscriber loops
4686134283Method and system for synchronizing time-division-duplexed transceivers
4696128349Method and apparatus for superframe bit allocation
4706128276Stacked-carrier discrete multiple tone communication technology and combinations with code nulling, interference cancellation, retrodirective communication and adaptive antenna arrays
4716122296Multiplexer utilizing variable resistance, analog-to digital conversion, and/or digital-to-analog conversion
4726122246Apparatus and method for clock synchronization in a multi-point OFDM/DMT digital communications system
4736118758Multi-point OFDM/DMT digital communications system including remote service unit with improved transmitter architecture
4746111886Apparatus for and method of communicating among devices interconnected on a bus
4756111870Method and apparatus for compressing and transmitting high speed data
4766108349Method and apparatus for registering remote service units in a multipoint communication system
4776108328Method and arrangement for separating signals operating in the same channel
4786104722Apparatus for and method of communicating among devices interconnected on a bus
4796097712Multi-carrier CDMA communications systems
4806094415Vector division multiple access communication system
4816091932Bidirectional point to multipoint network using multicarrier modulation
4826091780Transmitting and receiving radio signals
4836091759Method and apparatus for spreading and despreading data in a spread-spectrum communication system
4846088403Signal extraction method and apparatus
4856088399Multi-mode transmitter and receiver
4866088349Method, transmitter and receiver for the transmission and selection of local radio programs in a common-wave broadcasting network
4876085114Remote wireless unit having reduced power operating mode
4886084932Method to indicate synchronization lock of a remote station with a base station for a discrete multitone spread spectrum communications system
4896084890Method and apparatus for combining carrier signals
4906075813Band insertion and precancellation technique for simultaneous communication of analog frequency modulated and digitally modulated signals
4916075810NRZ and biphase-L formatted hexaphase modulated GPS transmission method
4926072769Method for multitone division multiple access communications
4936069922Method and apparatus for reducing cross-talk in broadband systems using line-coding
4946069879Method of and system architecture for high speed dual symmetric full duplex operation of asymmetric digital subscriber lines
4956067316Circuit for combined xDSL and other services
4966064645Bulk filtering and demodulation of independent FDMA sources
4976052366Communication method and communication system
4986049551Method and apparatus for dynamic allocation of transmission bandwidth resources and for transmission of multiple audio signals with a video signal
4996047200Remote wireless unit having reduced power operating mode
5006047018Multi-carrier communication method and device
5016044067Transmission rate control method for avoiding interference in radio communications
5026037884Technique to encode multiple digital data streams in limited bandwidth for transmission in a single medium
5036031868Asymmetric digital subscriber loop transceivers
5046028897Error-floor mitigating turbo code communication method
5056028891Asymmetric digital subscriber loop transceiver and method
5066026079Modem to support multiple site call conferenced data communications
5076014719Modulated bus computer system having filters with different frequency coverages for devices on the bus
5086014407Method and system for simultaneously broadcasting and receiving digital and analog signals

1999

5096009122Method and apparatus for superframe bit allocation
5106005873Apparatus and method for concurrent voice and data transmission
5116002664Method to gain access to a base station in a discrete multitone spread spectrum communications system
5125999575Channel separating filter apparatus, PSK demodulator apparatus and PSK receiver apparatus each equipped with channel separating filter apparatus
5135999563Rate negotiation for variable-rate digital subscriber line signaling
5145995483Apparatus and method for upstream clock synchronization in a multi-point OFDM/DMT digital communication system
5155995147Communication method, transmission apparatus, transmission method, receiving apparatus and receiving method
5165991311Time-multiplexed transmission on digital-subscriber lines synchronized to existing TCM-ISDN for reduced cross-talk
5175991308Lower overhead method for data transmission using ATM and SCDMA over hybrid fiber coax cable plant
5185987541Computer system using signal modulation techniques to enhance multimedia device communication
5195987338Remote wireless unit having reduced power operating mode
5205987068Method and apparatus for enhanced communication capability while maintaining standard channel modulation compatibility
5215983078Channel spacing for distortion reduction
5225982818Method for implementing trellis codes for ISI channels
5235982785Combination conventional telephony and high-bit-rate digital channel transmission system comprising high pass filters which comprise both first order and second order high pass filters
5245982784Bandwidth sharing for remote and local data transfers using multicarrier modulation over common transmission medium
5255978390Dual DDS data multiplexer
5265974082Spread spectrum communications system
5275970397Method for the frequency correction of multicarrier signals and related apparatus
5285970088Reverse channel next cancellation for MDSL modem pool
5295970047Communications method, communication apparatus, reception method, and reception apparatus
5305966644Communication system, including transmitting and receiving apparatus using a multi-carrier signal
5315966376Apparatus and method for digital data transmission using orthogonal cyclic codes
5325966048Low IMD amplification method and apparatus
5335963562Parameter estimation techniques applicable to multiple-signal communications media
5345960036Apparatus and method for auto-configuring a communication system
5355956624Method and system for simultaneously broadcasting and receiving digital and analog signals
5365956345IS-95 compatible wideband communication scheme
5375953327Class of low cross correlation non-palindromic synchronization sequences for code tracking in synchronous multiple access communication systems
5385949813Method and system for simultaneously broadcasting and receiving digital and analog signals
5395946048Network device for handling digital data over a TV channel
5405943375Method to indicate synchronization lock of a remote station with a base station
5415943361System and method for generating signal waveforms in a CDMA cellular telephone system
5425940365AM data multiplexing modulation apparatus
5435937011Multi-carrier high power amplifier using digital pre-distortion
5445933454Multi-carrier data transmissions system using an overhead bus for synchronizing multiple remote units
5455933421Method for frequency division duplex communications
5465930678Intermodulation distortion reduction method and apparatus
5475930231Block spectrum receiver for a broadband communications system
5485923700Adaptive weight update method and system for a discrete multitone spread spectrum communications system
5495917858Digital transmission system with symbol encoding which maximizes the signal amplitude-to-noise ratio
5505914981Method to indicate synchronization lock of a remote station with a base station for a discrete multitone spread spectrum communications system
5515910970MDSL host interface requirement specification
5525909641Transmit/receive switch
5535909436Random access orthogonal frequency division multiplex system and method
5545907577Delay compensation
5555903614Communication method and receiving apparatus
5565903598Method and system for simultaneously broadcasting and receiving digital and analog signals
5575898732Data service channel provision for an AM compatible broadcast system
5585896425Non-uniformly spaced tones for synchronization waveform
5595895483Disk array system for performing frequency division multiplex transmissions
5605894498Method and apparatus for analyzing a composite carrier signal
5615889856ADSL integrated line card with digital splitter and POTS CODEC without bulky analog splitter
5625878084Method and apparatus for recovering the independent bit streams from each of two co-channel frequency modulated carriers
5635875208Delay compensation in a discrete multitone spread spectrum communications system
5645867776Receiver for receiving text-based multiplex broadcasts
5655867478Synchronous coherent orthogonal frequency division multiplexing system, method, software and device
5665864584Circuitry for allowing two drivers to communicate with two receivers using one transmission line
5675864570Method and apparatus for communicating selected additional data in a data stream of fixed size
5685864543Transmit/receive compensation in a time division duplex system

1998

5695850415In-band on-channel digital broadcasting
5705848097Transceiver apparatus employing wideband FFT channelizer and inverse FFT combiner for a multichannel communication network
5715844949Power line communication system
5725841806Method and apparatus for the transmission of energy-scaled variable rate data
5735838799Digital sound broadcasting using a dedicated control channel
5745838667Time division duplexed high speed data transmission system and method
5755838268Apparatus and methods for modulation and demodulation of data
5765838210Method and apparatus for generating a modulated signal
5775835857Position determination for reducing unauthorized use of a communication system
5785828660Multiple user communication system, device and method with overlapping uplink carrier spectra
5795815532Method and apparatus for peak-to-average ratio control in an amplitude modulation paging transmitter
5805815488Multiple user access method using OFDM
5815812184Transmission of frame-to-frame reversed polarity signals in a two-way cable TV conversion system
5825809030Frequency division multiple access (FDMA) dedicated transmission system, transmitter and receiver used in such a transmission system
5835805567Orthogonal modulation scheme
5845799000Delay compensation
5855796783Digital transmission system
5865793759Apparatus and method for digital data transmission over video cable using orthogonal cyclic codes
5875790555Signal multiplexer and multiplexing method
5885790549Subtractive multicarrier CDMA access methods and systems
5895790514Multi-point OFDM/DMT digital communications system including remote service unit with improved receiver architecture
5905784363Arrangement in a multi-user system
5915781728Flexible asymmetrical digital subscriber line ADSL transmitter, remote terminal using same, and method therefor
5925771224Orthogonal frequency division multiplexing transmission system and transmitter and receiver therefor
5935768269Apparatus and method for establishing frame synchronization in distributed digital data communication systems
5945764706AM compatible digital waveform frame timing recovery and frame synchronous power measurement
5955761246Circuit for multiplexing a plurality of signals on one transmission line between chips
5965757854In-band on-channel digital broadcasting
5975757766Transmitter and receiver for orthogonal frequency division multiplexing signal
5985757282Low rate telemetry channel
5995751701Rate adaptive digital subscriber line ("RADSL") modem
6005745839Satellite multiple access system with distortion cancellation and compression compensation
6015745837Apparatus and method for digital data transmission over a CATV system using an ATM transport protocol and SCDMA
6025745525Method and system for simultaneously broadcasting and receiving digital and analog signals
6035729570Orthogonal code division multiple access communication system having multicarrier modulation
6045729526Asynchronous transfer mode type multimedia radiocommunication system
6055726978Adaptive channel allocation in a frequency division multiplexed system
6065720039Satellite multiple access system with distortion cancellation and compression compensation
6075719867Plural telephony channel baseband signal demodulator for a broadband communications system
6085715280Method for partially modulating and demodulating data in a multi-carrier transmission system
6095715236System and method for generating signal waveforms in a CDMA cellular telephone system
6105710797Method and apparatus for digital communication in the presence of closely spaced adjacent channels
6115708682Demodulator control system and a receiver capable of quickly acquiring a desired carrier wave
6125706275Data transmission method, transmitter, and receiver

1997

6135694431Method and apparatus for average power control
6145692016Process and arrangement for adjusting the local oscillators of a receiver in a multi-channel transmission system
6155691983Communication system with repeatedly allocated channel ID numbers
6165691718Dual 4-wire analog data multiplexer
6175680394Time division duplexed high speed data transmission system and method
6185668814Dual DDS data multiplexer
6195668802High-speed digital subscriber lines
6205659569Data burst randomizer
6215646698Pre-frame-comb as well as "pre-line-comb" partial-response filtering of BPSK buried in a TV signal
6225644573Methods for coordinating upstream discrete multi-tone data transmissions
6235638401Method and apparatus for generating plural quadrature modulated carriers
6245636253Method for detecting erasures in received digital data
6255636209Modem to support multiple site call conferenced data communications
6265629955Variable spectral response FIr filter and filtering method
6275627501Signal coupler with automatic common line attenuation compensation
6285625651Discrete multi-tone data transmission system using an overhead bus for synchronizing multiple remote units
6295623487Doubly orthogonal code and frequency division multiple access communication system
6305617411Method for digital data transmission in the zero symbol of COFDM modulation method
6315612703position determination in an integrated cellular communications system
6325610922Voice plus 4-wire DDS multiplexer
6335606576Adaptive mode control system for AM compatible digital broadcast
6345606575FFT-based channelizer and combiner employing residue-adder-implemented phase advance
6355602847Segregated spectrum RF downconverter for digitization systems
6365596361Two-way cable TV conversion system for data transmission over a dedicated frequency band

1996

6375590153Digital modem for reducing interference in the same channel of another system
6385589872Compatible interactive TV and multimedia delivery system two-way cable TV conversion system for data transmission over a dedicated frequency band
6395588022Method and apparatus for AM compatible digital broadcasting
6405581576Radio information broadcasting and receiving system
6415577024Multiple access radio system
6425574450Synchronization adder circuit
6435568483Method and apparatus for the formatting of data for transmission
6445563664Pre-frame-comb as well as pre-line-comb partial-response filtering of BPSK buried in a TV signal
6455561686Radio information communication system using multi-carrier spread spectrum transmission system
6465559799Modulator and demodulator apparatus as well as modulation and demodulation method
6475557612Method and apparatus for establishing communication in a multi-tone data transmission system
6485555268Multicode direct sequence spread spectrum
6495550859Recovering analog and digital signals from superimposed analog and digital signals using linear prediction
6505550579Two-way cable tv conversion system
6515548582Multicarrier frequency hopping communications system
6525539777Method and apparatus for a DMT receiver having a data de-formatter coupled directly to a constellation decoder
6535535240Transceiver apparatus employing wideband FFT channelizer and inverse FFT combiner for multichannel communication network
6545535239Data burst randomizer
6555530920Automatic output level control system for multi-carrier radio transmission apparatus
6565521937Multicarrier direct sequence spread system and method
6575519732Digital baseband to IF conversion in cellular base stations
6585517487System for increasing the capacity of existing local area networks that use shielded twisted wire pair medium
6595517433Parallel digital data communications
6605511073Method and apparatus for the formatting of data for transmission
6615504775Multi-user spread spectrum communication system
6625504773Method and apparatus for the formatting of data for transmission
6635499244Packet data reciever with sampled data output and background light cancellation
6645487069Wireless LAN
6655481561Fully meshed CDMA network for personal communications terminals

1995

6665479417Error correction apparatus capable of improving error correction ability without expansion of a frequency band
6675469430Method and devices for simultaneous transmission of two heterochronous binary signals on the same transmission medium
6685469219RF-based high-bandwidth signal transmission method and apparatus
6695465396In-band on-channel digital broadcasting
6705463355Wideband vector modulator which combines outputs of a plurality of QPSK modulators
6715446756Integrated cellular communications system
6725444415Modulation and demodulation of plural channels using analog and digital components
6735440589Frequency offset dealing modulator and demodulator apparatus
6745432786Modem for modulating and demodulating main signal and secondary signal with clock synchronized system and transforming secondary signal between start-stop system and clock-synchronized system
6755423001Data transmission and apparatus, data processing apparatus and a neural network which utilize phase shifted, modulated, convolutable pseudo noise
6765418813Method and apparatus for creating a composite waveform
6775416797System and method for generating signal waveforms in a CDMA cellular telephone system
6785410538Method and apparatus for transmitting signals in a multi-tone code division multiple access communication system
6795398237Acquisition and tracking of independent quadrature modulated bitstreams
6805388122Modulation and demodulation system

1994

6815367533Dynamic capacity allocation CDMA spread spectrum communications
6825351273Process and system for the transmission of a signal
6835351272Communications apparatus and method for transmitting and receiving multiple modulated signals over electrical lines
6845351148Optical transmission system
6855345467CDMA cellular hand-off apparatus and method
6865345437System for controlling frequency multiplexing modems
6875339330Integrated cellular communications system
6885327455Method and device for multiplexing data signals
6895321514Interactive television and data transmission system
6905313492Data modulator/demodulator
6915309474System and method for generating signal waveforms in a CDMA cellular telephone system
6925301363Method and apparatus for adaptive power adjustment of mixed modulation radio transmission
6935289464Frequency-multiplexed cellular telephone cell site base station and method of operating the same
6945282222Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum
6955282209Data word transmission system utilizing at least two transmission channels

1993

6965274636Automatic multiplex data link system, symbol encoder decoder therefor
6975272724Wideband signal synchronization
6985268761Automatic gain control system for a high definition television signal receiver including an adaptive equalizer
6995265128Method and device for the digital transmission of information in short-wave radio networks
7005263196Method and apparatus for compensation of imbalance in zero-if downconverters
7015263018Apparatus for time division multiplexed processing of plural QAM signals
7025255086Method and apparatus for RF data transfer in a CATV system
7035251324Method and apparatus for generating and collecting viewing statistics for remote terminals in a cable television system
7045249201Transmission of multiple carrier signals in a nonlinear system
7055245340Digital transmultiplexer with automatic threshold controller
7065225902Automatic frequency selection in a bi-directional cable television system
7075222103Differential quadrature phase shift keying encoder for subcarrier systems
7085222062Expandable communication system with automatic data concentrator detection
7095220557Multiple use digital transmitter/transceiver with time multiplexing
7105214641Mixed analog digital secondary channel FSK modem
7115214390Method and apparatus for partial response demodulation
7125204877Spread spectrum modulating device
7135201071Method and apparatus for reducing the peak envelope voltage of an RF transmitter while maintaining signal average power
7145191576Method for broadcasting of digital data, notably for radio broadcasting at high throughput rate towards mobile receivers, with time frequency interlacing and analog synchronization
7155187711Error correction method for multicarrier radio transmission system
7165185591Power distribution line communication system for and method of reducing effects of signal cancellation
7175179571Spread spectrum cellular handoff apparatus and method
7185177768Spread-time code division multiple access technique with arbitrary spectral shaping
7195177604Interactive television and data transmission system

1992

7205175744Spread-time code division multiple access technique with arbitrary spectral shaping
7215175743Spread-time code division multiple access technique with arbitrary spectral shaping
7225173923Spread-time code division multiple access technique with arbitrary spectral shaping
7235166951High capacity spread spectrum channel
7245161168Spread spectrum CDMA communications system microwave overlay
7255160929System for parallel communication of binary data via trinary transmission lines
7265155590System for data channel level control
7275144305Transmission arrangement comprising a block code encoded main channel and an auxiliary channel
7285142690Cable television radio frequency data processor
7295115450High speed digital to analog to digital communication system
7305103459System and method for generating signal waveforms in a CDMA cellular telephone system
7315099493Multiple signal receiver for direct sequence, code division multiple access, spread spectrum signals

1991

7325073900Integrated cellular communications system
7335066957Hybrid modulation satellite communication system
7345052024Offset frequency multipoint modem and communications network
7355051993Mixed modulation level communication system
7365034964N:1 time-voltage matrix encoded I/O transmission system
7375025442TDM/FDM communication system with pseudo-duplex capability
7385022049Multiple access code acquisition system
7395005188Channel estimation and detection for digital communication systems
7404995036Multichannel data compressor

1990

7414959844Clock recovery circuit for digital demodulator
7424939748Unobtrusive signature for modulated signals
7434908840PSK modulation with an error correction memory

1989

7444884139Method of digital sound broadcasting in television channels with spectrum interlacing
7454881222Multicarrier demodulator
7464862483Channel estimation and detection for digital communication systems
7474831662Fiber optic data transmitting system
7484821289Multiple parallel channel equalization architecture
7494811021Dual polarization transmission system
7504799214Two-wire full duplex frequency division multiplex modem system having echo cancellation means

1988

7514768191Digital data and orderwire combiner apparatus
7524763326Service-integrating, digital message transmission system for joint transmission of narrow-band and broadband signals
7534750036Interactive television and data transmission system
7544737967Remote monitoring system receiver with dual baud rate selector

1987

7554694471Digital data communicating
7564677686Passive transmission of data over cable TV systems
7574677608Method of transferring an additional information channel across a transmission medium
7584641318Method for improving the reliability of data transmission over Rayleigh fading channels

1986

7594631733Transceiver
7604618952Communication of unipolar pulses
7614616314Microcomputer controlled data receiver
7624613975Selective fading protection system
7634606046Converter/line driver circuit for a line repeater
7644601045Modulator-demodulator method and apparatus with efficient bandwidth utilization
7654581588Switchable bandpass filter
7664581586Crosstalk reduction in unbalanced QPSK detectors
7674577331Multiple rate baseband transmitter

1985

7684561117Fiber optic digital data transmitting system
7694549294Time-of-arrival pulsed waveform multiplexer
7704534064Fault location arrangement for digital optical transmission system
7714529950Digital phase and amplitude modulator
7724521749Simultaneous amplitude and angle modulation using detection of complex zeroes
7734498050Demodulation device for composite PSK-PSK modulated waves

1984

7744481622High speed dial-up telephone circuit full duplex data transmission techniques
7754438511Packetized ensemble modem
7764436956Switchable bandpass filter

1983

7774420842Fiber optic digital data transmitting system
7784419756Voiceband data set
7794404532Modulator having improved bandwidth and power requirements
7804390980Demultiplexing plural data streams
7814389722Method for the simultaneous transmission of a plurality of data stream over one transmission channel
7824388732Fiber optic data link
7834388697Voiceband data set circuitry with dual bus architecture
7844385381Digital radio transmission system for transmitting a plurality of information signals by a network of transmitters having substantially the same carrier frequencies
7854378598Multi-terminal communications systems suitable for vehicle radio harness

1982

7864356562Method and apparatus for demultiplexing electrical signals
7874330687Audio and full duplex digital data carrier system
7884317209FSK Tone generator circuit

1981

7894302629Digital data transmission system
7904290140Combined coherent frequency and phase shift keying modulation system
7914284979Coding system for simultaneously signaling selected ones of a plurality of devices
7924283789Data transmission method and devices for practicing said method
7934273955System for in-service quantitative performance analysis of data communications system
7944272758Arrangement for providing a power supply and transmitting electrical signs between two devices using a small number of contacts
7954259744Signal generator
7964250456Device for demodulating PSK-FM double modulated carrier signals

1980

7974225939Bidirectional data communication system
7984217572Arrangements for transmitting electrical signals between two devices which are connected by contacts
7994199761Multichannel radio communication system for automated power line distribution networks

1979

8004156847Method and apparatus for confirming transmission in bidirectional CATV system
8014136327Well survey system modulation technique
8024134072Direct digital frequency synthesizer

1978

8034131761Method of and means for conveying and recovering supplementary message signals superimposed upon a multilevel signal stream in a digital transmission system
8044096442Crosstalk corrector and decision device for FSK
8054078153Clock signal and auxiliary signal transmission system
8064075427System for phase division multiplex duplex communication over a two-wire circuit between a master terminal and a slave terminal
8074070650Digital signal transmission system and equipment

1977

8084063040High speed multiplexer and demultiplexer for pulse code channels
8094053713Multi-channel multiplex data transmission system
8104051539Differential duration demultiplexing method and system
8114037050Fault isolation in communications circuits
8124020288System for data transmission through the channels of a frequency division multiplex system
8134003001Multi-line, multi-mode modulator using bandwidth reduction for digital FSK and DPSK modulation

1976

8143987374Multi-line, multi-mode modulator using bandwidth reduction for digital FSK and DPSK modulation
8153979561Level-code encoded multiplexer
8163969617Multichannel digital modulator
8173958191Multi-line, multi-mode modulator using bandwidth reduction for digital FSK and DPSK modulation
8183943284Digital data communication system featuring multi level asynchronous duplex operation
8193931472Asynchronous quadriphase communications system and method
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017