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2017

19608735MIMO equalization optimized for baud rate clock recovery in coherent DP-QPSK metro systems
29596663Method and apparatus for transmitting and receiving training sequence code in communication system
39578681Methods and arrangements for a low power device in wireless networks
49572140Method and device for transmitting uplink control information in wireless communication system
59571317Bandwidth efficient continuous phase modulation
69571308High speed transceiver
79571174Precoding method, precoding device
89548877Digital communication system
99544008Integrated circuit
109537513Rate adaptive turbo forward error correction

2016

119510139Phy layer options for body area network (BAN) devices
129510138PHY layer parameter for body area network (BAN) devices
139491018Carrier phase and amplitude estimation for phase shift keying using pilots and data
149491017Circuit and method for improving phase detection
159465097Systems and methods for providing ADS-B mode control through data overlay
169455863Separating and extracting modulated signals
179455818Method and apparatus for signaling to a mobile device which set of training sequence codes to use for a communication link
189438455Modulation of signals
199432168Method and apparatus for transmitting and receiving channel status information (CSI) for supporting 256QAM in wireless access system
209426014Separating and extracting modulated signals
219425777Phase interpolator
229423443System and method of detecting and locating intermittent and other faults
239419833Phase control method, array antenna, and system
249414432Physical layer frame format for WLAN
259414323Uplink transmission power control in multi-carrier communication systems
269407410Method and apparatus for signaling to a mobile device with set of training sequence codes to use for a communication link
279401833Method and apparatus for transmitting/receiving signal in wireless communication system
289397802Cyclic shift delay techniques for WLAN multi-radio devices
299397740Modular antenna array with RF and baseband beamforming
309386055Signaling to application lack of requested bandwidth
319385893Modular low power serializer-deserializer
329385843Method and apparatus for using multiple modulation schemes for a single packet
339385832Methodology and method and apparatus for signaling with capacity optimized constellations
349379926Modulation technique for transmitting and receiving radio vortices
359379666Microwave band booster rectifier circuit, and wireless tag device and wireless tag system employing same
369363124Transmission and reception signal processor and method
379356812Wireless communication apparatus
389350588Receiver for multi carrier modulated signals
399344315Transmitting system and receiving system, and transmitting method and receiving method
409344310Apparatus and method for performing properrizing frequency shift(p-FRESH) vectorizing
419316722Systems and methods for providing ATC overlay protocols
429313061Wireless communication system using selective mapping for memory-less demodulation and related methods
439306779Chaotic communication systems and methods
449300518Pulse radar device and control method therefor
459294382Communication device and method for enhancing energy efficiency
469264144Transmission and reception of quad-subcarrier orthogonal frequency division multiplexed signals
479261581Location system
489258139Method for regulating data transmission over a communication channel, corresponding device and computer program product
499237041Data reception with feedback equalization for high and low data rates
509231794Method and apparatus for multiple antenna communications, computer program product therefor

2015

519225407Precoding method, precoding device
529219590Method for transmitting effective channel status information in wireless communication system supporting multiple carriers
539215665Uplink transmission power control in multi-carrier communication systems
549214991Method, device, and system for implementing microwave multiple-input multiple-output
559197224Circuits and methods for a combined phase detector
569191931Method and apparatus for the transmission of a control signal in a radio communication system
579191089Control channel information transmission method, and base station and terminal using the same method
589184894Method and apparatus for signaling to a mobile device with set of training sequence codes to use for a communication link
599178735Phase-modulated on-off keying for millimeter wave spectrum control
609173197Method and apparatus for signaling to a mobile device which set of training sequence codes to use for a communication link
619172445Multi-user multiple input multiple output radio communications
629166850Data retransmission request device, a data transmitter, and a data retransmission method for multi-tone systems
639166707Transmitter, signal generation device, calibration method, and signal generation method
649160602Method of improving performance in a hierarchical modulation system
659154350PHY layer options for body area network (BAN) devices
669154349Wireless transmitter for high mobility and high throughput and mode control method thereof
679148316Decision feedback equalizer
689131507Method and apparatus for receiving signals
699130712Physical channel segmentation in wireless communication system
709118525Receiver for sideband mitigation communication systems and methods for increasing communication speeds, spectral efficiency and enabling other benefits
719118471Method and arrangement in a telecommunication system
729112595Transmission device, reception device, and radio communication method
739112560Control channel information transmission method, and base station and terminal using the same method
749107087Method and device for determining channel quality indication information
759106502Apparatus, system and method of in-phase/quadrature (I/Q) imbalance compensation
769106314Concurrent multiband transceiver
779100963Time slot sharing in TDMA communication system
789094199Method and arrangement in a telecommunication system
799094198Method and arrangement in a telecommunication system
809088395Transmitter and method for transmitting data block in wireless communication system
819083593Method and system for multiple training sequences for peak-to-average power ratio reduction in precoded bursts
829069058Location system
839065707Polarization-independent LCOS device
849065623Mixed mapping for rate compatible trellis coded modulation
859059790Ultra-wide band communication apparatus and method
869059751Systems and methods for multiplicative superposition for MIMO broadcast channels
879025715Systems and methods for compensating a phase of a local clock of a storage device
889008212High data rate millimeter wave radio
899008199Advanced MIMO interleaving
909001948Pulse shaping in a communication system
918953669Decision feedback equalizer

2014

928879661Signal processing apparatus, transmitter, receiver and method
938861636Coherent detection using coherent decoding and interleaving
948824589Method, apparatus, and system for microwave signal correction
958804868System and method for sending and receiving a digital signal over a radio pathway
968737517Scrambling and modulation to constrain the constellation size of ACK/NAK transmission on the data channel
978681914Clock offset compensator

2013

988619895Apparatus and method for transmitting/receiving broadcast data in digital broadcasting system
998576897Receiver
1008553748ADC clock selection based on determined maximum conversion rate
1018488503Magnetic field communication method for managing node with low power consumption
1028416846Systems, circuits and methods for adapting taps of a decision feedback equalizer in a receiver
1038401099Method of transmitting control signal in wireless communication system
1048391410Methods and apparatus for configuring a pilot symbol in a wireless communication system
1058363747Compress-forward coding with N-PSK modulation for the half-duplex gaussian relay channel

2012

1068340215Radio transceiver architectures and methods
1078331479Method, apparatus, and system for microwave signal correction
1088290030Micro-controller with FSK modem
1098270522Joint channel estimation and modulation detection
1108270511Methodology and method and appartus for signaling with capacity optimized constellations
1118259838Signal transmission system for transmitting transmission signals via a transmission line including transmission conductors
1128243756Methods, computer program products and apparatus providing improved quantization
1138194793Multi-stage frequency offset estimation and compensation method and its circuit
1148126082Gain weighted code combining system and method for combining BPSK codes

2011

1158014462Apparatus for performing alternating quadratures differential binary phase shift keying modulation and demodulation
1167986728Equalizer with combined CCK encoding-decoding in feedback filtering of decision feedback equalizer
1177953184Direct sampling type wireless receiver and method using the same
1187929595Estimating frequency offset at a subscriber station receiver

2010

1197844011Apparatus and method for improving symbol error rate performance of M-ary phase shift keying system having quadrature error
1207792209Digital DPSK demodulation method and system
1217756213Method for enhancing bluetooth transmission speed and robustness of emitting end and receiving end of communication system
1227746943Wireless communication system, wireless communication apparatus and wireless communication method
1237738586Wireless communication device and method for reducing in-band interference in a GPS receiver
1247738579Systems and methods for adaptive bit loading in a multiple antenna orthogonal frequency division multiplexed communication system
1257668256Method and apparatus for the generation and detection of optical differential varied-multilevel phase-shift keying with pulse amplitude modulation (ODVMPSK/PAM) signals
1267649956Modulation and demodulation system, modulator, demodulator and phase modulation method and phase demodulation method used therefor

2009

1277639444Real-time channel adaptation
1287636386Method of continuously calibrating the gain for a multi-path angle modulator
1297539266Phase shift keying wireless communication apparatus and method
1307539265Multiple-input multiple-output code division multiple access (MIMO-CDMA) wireless communication equipment
1317539253Interpolation in channel state feedback
1327529314Carrier phase detector
1337512188Phase shift keying signaling for integrated circuits

2008

1347460593Signal processing device capable of enhancing correctness of feedback signals
1357443921Mobile body communication apparatus
1367436902Multi-dimensional space Gray code maps for multi-dimensional phase modulation as applied to LDPC (Low Density Parity Check) coded modulation
1377382827Computation of decision feedback equalizer coefficients with constrained feedback tap energy
1387359457Transmission apparatus, reception apparatus and digital radio communication method

2007

1397269229Reduced memory architecture for edge modulator
1407239668Coded digital modulation method for communication system
1417190735Generating two signals having a mutual phase difference of 90.degree.
1427180964Constellation manipulation for frequency/phase error correction

2006

1437123663Coded digital modulation method for communication system
1447106803Phase shift keying wireless communication apparatus and method
1457092438Multilevel decision feedback equalizer
1467085331Apparatus and method for processing data using COPSK of wireless communication system
1477035329Soft slicer in a hybrid decision feedback equalizer

2005

1486963732Subsampling communication receiver architecture with relaxed IFA readout timing
1496956908Technique to simultaneously distribute clock signals and data on integrated circuits, interposers, and circuit boards
1506931240System and method for eliminating signal zero crossings in single and multiple channel communication systems
1516919829Bit swapping for different interleaving depths
1526882694Apparatus, and associated method, for estimating frequency offset of a data symbol communicated in a communication system
1536876708Method and apparatus for demodulation of phase shift keyed signals
1546867719Digitizer module, a waveform generating module, a converting method, a waveform generating method and a recording medium for recording a program thereof

2004

1556836227Digitizer module, a waveform generating module, a converting method, a waveform generating method and a recording medium for recording a program thereof
1566826371Variable rate DPSK system architecture
1576823488Packet binary convolutional codes
1586807238Method and apparatus for decoding M-PSK turbo code using new approximation technique
1596801589Relative timing acquisition for a radio communications system
1606788728System and method for reducing peak-to-average ratio of the reverse link modulator in a CDMA phone system
1616784817Data generating method, data generator, and transmitter using the same
1626757334Bit rate agile third-generation wireless CDMA, GSM, TDMA and OFDM system
1636735258Moderate rate phase shift keying codec
1646735028Method and apparatus for increasing data storage capacity via phase and amplitude modulation
1656731679Modulator/demodulator and method of modulation/demodulation used for same
1666728467Communication system
1676724976Communication system

2003

1686665348System and method for interoperable multiple-standard modulation and code selectable Feher's GMSK, enhanced GSM, CSMA, TDMA, OFDM, and third-generation CDMA, W-CDMA and B-CDMA
1696650714Spatial processing and timing estimation using a training sequence in a radio communications system
1706628955System and method for increasing the data rate for cellular digital packet data (CDPD) services
1716618450Receiving apparatus and receiving method
1726614853Method of transmission and device to carry out said method
1736608874Method and apparatus for quadrature multi-pulse modulation of data for spectrally efficient communication
1746590942Least squares phase fit as frequency estimate
1756567475Method and system for the transmission, reception and processing of 4-level and 8-level signaling symbols
1766567474Digital wireless phone/modem jack capable of communications over the power lines using differential binary phase shift keying (DBPSK)
1776549716Communication system
1786549588Communications system and corresponding receiver unit
1796539052System for accelerating the reconfiguration of a transceiver and method therefor
1806535562Method and apparatus for rotating the phase of a complex signal
1816535497Methods and systems for multiplexing of multiple users for enhanced capacity radiocommunications
1826532253Spread spectrum systems with trellis-coded modulation

2002

1836498818Method and system for transmitting information by means of phase modulation
1846493398Burst mode digital communications system
1856480503Turbo-coupled multi-code multiplex data transmission for CDMA
1866473506Signaling using phase rotation techniques in a digital communications system
1876470055Spectrally efficient FQPSK, FGMSK, and FQAM for enhanced performance CDMA, TDMA, GSM, OFDN, and other systems
1886445745Phase encoding methods for handling multiple phase modulated signals on a single channel
1896434200TCM revisiting system and method
1906424690Two-thirds rate modulation and coding scheme for Rayleigh fading channels
1916424685Polar computation of branch metrics for TCM
1926421400System and method using polar coordinate representation for quantization and distance metric determination in an M-PSK demodulator
1936421393Technique to transfer multiple data streams over a wire or wireless medium
1946389081Signal transmission equipment
1956389078Configurable circuits for field programmable radio frequency communications equipment and methods therefor
1966381265Field programmable modulator-demodulator arrangement for radio frequency communications equipment and method therefor
1976366625Control information assigning method, control method, transmitting method, receiving method, transmitter and receiver
1986359897Control system for controlling the processing data of a first in first out memory and method therefor
1996353640Reconfigurable radio frequency communication system
2006339624Trellis decoding with multiple symbol noncoherent detection and diversity combining

2001

2016329905Power line communication system and method
2026320914Spectrally efficient modulation using overlapped GMSK
2036304614Differential codec for pragmatic PSK TCM schemes
2046301308System and method for high speed data transmission
2056301306Method and apparatus for generating a short-range wireless data communication link
2066292654Digital noise blanker for communications systems and methods therefor
2076289487Efficient modified viterbi decoder
2086272186Normal burst acquisition system for use in a cellular communications network
2096266365CDMA receiver
2106259744Method and apparatus for mapping bits to an information burst
2116256357Communication system
2126246697Method and system for generating a complex pseudonoise sequence for processing a code division multiple access signal
2136215813Method and apparatus for encoding trellis coded direct sequence spread spectrum communication signals
2146198908System and a method for transfer of a digital information carrying signal
2156198777Feher keying (KF) modualtion and transceivers including clock shaping processors

2000

2166157681Transmitter system and method of operation therefor
2176131180Trellis coded modulation system
2186118827Apparatus for providing increased data rates within existing modulation systems
2196112180Data transmission and reception methods and data transmission and reception apparatus
2206091765Reconfigurable radio system architecture
2216078625Pragmatic decoder and method therefor
2226075810NRZ and biphase-L formatted hexaphase modulated GPS transmission method
2236072829Method of higher value step encoding
2246061408Method and apparatus for 45.degree. phase ambiguity resolution for one coded bit per symbol 8PSK modulation
2256049651Communication system
2266031474Half rate coded modulation schemes for Rayleigh fading channels
2276025946Transmission device and transmission method

1999

2285999569Communication system
2295995551Rotationally invariant pragmatic trellis coded digital communication system and method therefor
2305982807High data rate spread spectrum transceiver and associated methods
2315974090Special eye pattern and modulation and demodulation method using the same
2325960029Coherent dual-channel QPSK modulator/demodulator for CDMA systems, and modulating/demodulating methods therefor
2335956328Spread spectrum communications system
2345953377Coded modulation using repetition and tree codes
2355946356Method and apparatus for data transmission within a broad-band communications system
2365910967Pragmatic encoder and method therefor
2375909435Wideband code-division multiple access system and method
2385903555Modulation method and system using constant envelope ODSCDMA with low out-of-band emissions for non-linear amplification
2395898738Modulation, demodulation and antenna coupling circuits used in IC card reading/writing apparatus, and method of supplying power to the IC card
2405892879Communication system for plural data streams
2415878085Trellis coded modulation communications using pilot bits to resolve phase ambiguities
2425864588Communications device
2435864585Cosine segment communications system
2445862175Digital transmission apparatus using differential coding and forward error correction
2455862174Data storage medium

1998

2465854808Methods and apparatus for detecting the presence of a prescribed signal in a channel of a communications system
2475835042Signal transmission method and signal transmission apparatus
2485828676Method and apparatus for robust communication based upon angular modulation
2495825812Suppressed side lobe direct-sequence-spread-spectrum radio communication method and device
2505819000Magnetic recording and playback apparatus
2515815529Transmission system for digital audio broadcasting that incorporates a rotator in the transmitter
2525802241Communication system
2535802079Transmission system for digital audio broadcasting
2545784366Wideband code-division-multiple access system and method
2555769876Method and apparatus for telemetering data bidirectionally between two devices, one device incorporating a coarse phase adjustment and the other device incorporating a fine phase adjustment
2565757856Differential coder and decoder for pragmatic approach trellis-coded 8-PSK modulation
2575719902Methods and apparatus for detecting cellular digital packet data (CDPD)

1997

2585703911Decoding method for trellis codes with large free distances
2595696792Digital radiocommunication terminal
2605675609Sinusoidal pulse and pulse train signaling apparatus
2615671254Modulation, demodulation and antenna coupling circuits used in IC card reading/writing apparatus, and method of supplying power to the IC card
2625661750Direct sequence spread spectrum system
2635661718Simultaneous analog and digital communication
2645657354Planar approximating method for computing the log-likelihood ratio optimal signal metric of each component code decoder in 8-PSK block coded modulation systems
2655642384Trellis coded modulation scheme with low envelope variation for mobile radio by constraining a maximum modulus of a differential phase angle
2665642380Data communication system and modem therefor
2675623518Method and circuit arrangement for transmitting binary data trains
2685610946Radio communication apparatus
2695602669Digital signal transmission apparatus, digital signal transmission method, and digital signal transmitter-receiver
2705600672Communication system

1996

2715587797Process for encoding and transmitting information
2725581368Data-reducing coding method for transmitting information from a transmitter to a receiver
2735577066Charge-coupled-device based data-in-voice modem
2745576835Method for run-length coding for shortening transmission time
2755574750Methods and apparatus for detecting a cellular digital packet data (CDPD) carrier
2765570394Signal transmission system
2775570391Trellis coding method using a multilevel delay device
2785561689Method and apparatus for digital carrier detection in a wireless lan
2795559828Transmitted reference spread spectrum communication using a single carrier with two mutually orthogonal modulated basis vectors
2805555547Convolutional coding and viterbi decoding system transparent to phase skips of .pi. and .pi./2, with applications in TDMA transmission
2815555275Multi-threshold and hierarchical television signal transmission system
2825548615Methods and apparatus for rotationally invariant multilevel coding
2835537436Simultaneous analog and digital communication applications

1995

2845473290Variable-throughput digital modulator and its use in FM radio broadcasting
2855469452Viterbi decoder bit efficient chainback memory method and decoder incorporating same
2865465267Error-correcting tandem encoding system
2875454012Digital signal transmission device for improvement of anti-multipath feature, a method of the same and digital signal transmission waveform
2885448555Simultaneous analog and digital communication
2895448206Systems with increased information rates using embedded sample modulation and predistortion equalization
2905438592PI/4-DQPSK phase state encoder/decoder
2915428631Method and apparatus for resolving phase ambiguities in trellis coded modulated data
2925416804Digital signal decoder using concatenated codes
2935406629Apparatus and method for digitally processing signals in a radio frequency communication system
2945404127Power line communication while avoiding determinable interference harmonics
2955394439Bisdn compatible modem codec for digital information communication system

1994

2965351272Communications apparatus and method for transmitting and receiving multiple modulated signals over electrical lines
2975315622Data circuit terminating equipment (DCE) including timing arrangements circuits controlled by processing means
2985311553Trellis coding technique to increase adjacent channel interference protection ratio in land mobile radio systems under peak power constraints
2995311552Trellis coding technique to improve adjacent channel interference protection ratio in land mobile radio systems
3005301364Method and apparatus for digital automatic gain control in a receiver
3015301209Multidimensional trellis-coded modulation for fading channels
3025295160Apparatus for FM-modulation of digital signals
3035289501Coded modulation with unequal error protection for fading channels
3045285458System for suppressing spread of error generated in differential coding
3055276685Digital automatic gain control

1993

3065271043Device and method for the data transmission or storage optimizing the use of the pass-band
3075251235Single receiver for receiving wireless transmission of signals is for use with a serial two-conductor data bus
3085245633System for transmitting digital data over an electricity power line
3095233630Method and apparatus for resolving phase ambiguities in trellis coded modulated data
3105233349Transmission and decoding of tree-encoded parameters of analogue signals
3115216694Trellis coding for fractional bits
3125189564Magnetic recording/reproducing method and apparatus

1992

3135157694Coherent PSK demodulator using bit error rate and S/N ratio to establish synchronization
3145151925Coherent demodulation method for a digitally modulated signal having a continuous phase and a constant envelope
3155136616Method of rapidly controlling the frequency of a coherent radio receiver and apparatus for carrying out the method
3165128933Process and device for the radio transmission of coded data superimposed on a traditional frequency-modulated broadcast
3175117427Communication system with concatenated coding error correction
3185103463Method and system for encoding and decoding frequency shift keying signals
3195093848Method of controlling the frequency of a coherent radio receiver and apparatus for carrying out the method
3205084901Sequential chirp modulation-type spread spectrum communication system

1991

3215056112Interleaving in coded modulation for mobile radio
3225050188Method and apparatus for transmitting coded information
3235048057Wireless local area network
3245029185Coded modulation for mobile radio
3255023889Trellis coded multilevel DPSK system with doppler correction for mobile satellite channels
3265014283Arrangement for equalizing and demodulating binary continuous-phase angle-modulated data signals with modulation index 0.5
3274996503Phase modulator circuit for encoding two binary digits per cycle of sine wave carrier

1990

3284965810Digital differential phase-shift keyed decoder
3294945549Trellis coded modulation for transmission over fading mobile satellite channel
3304942592Synchronous receiver for minimum shift keying transmission
3314937586Radio broadcast communication systems with multiple loop antennas
3324922507Multiple trellis coded modulation
3334922209Clock recovery device
3344922206Method of demodulation using split delay line
3354901319Transmission system with adaptive interleaving

1989

3364881246Method and apparatus for demodulating a class of M-ary phase shift keyed (PSK) signals
3374881245Improved signalling method and apparatus
3384879756Radio broadcast communication systems
3394849706Differential phase modulation demodulator
3404847868Non-coherent pattern detection
3414841470Surface acoustic wave device for differential phase shift keying convolving
3424835792Universal FM receiver for mobile communications
3434829566Apparatus for detecting and discriminating phase jumps in a periodic signal and its application to a telephone tone signal with phase inversions
3444821291Improvements in or relating to signal communication systems
3454807253Time-varying trellis-coded modulation formats which are robust in channels with phase variations
3464800576Convolution data recovery circuit

1988

3474794621Apparatus for transmitting information by angle modulation
3484787096Second-order carrier/symbol sychronizer
3494785468Intermittent receiver
3504773083QPSK demodulator
3514756009Method for transmitting digital data
3524746872Differential phase shift keying demodulator
3534731798Method for transmitting information, in which the signals are coded as amplitudes of the half-waves or periods of a sinusoidal alternating current

1987

3544715047Digital differential phase shift keyed demodulator
3554714892Differential phase shift keying demodulator
3564706300Optical heterodyne detection pulse receiving system and method
3574696056Frequency converting circuit
3584691318Data transmission system with error correcting data encoding
3594682343Processing circuit with asymmetry corrector and convolutional encoder for digital data
3604680778Fast acquisition circuit for synchronous digital receiver operating in wideband noise
3614675881Arrangement for recovering a clock signal from an angle-modulated carrier signal having a modulation index m=0.5
3624669095Maximum distance from zero crossing MSK demodulator
3634667334System for broadcasting data packets originating from different sources
3644656648Process for the noncoherent demodulation of a digital signal
3654647863Saw transition detector for PSK signals
3664634990Apparatus for demodulating differential phase shift keyed signals

1986

3674628271Differential phase shift keying demodulator
3684622683Fast acquisition ringing filter MSK demodulator
3694618830PSK demodulator using asynchronous local oscillator
3704617678Apparatus for detecting and recovering binary data from an input signal
3714614910Quarternary differential PSK demodulator
3724608540Phase-shift keying demodulator
3734603393Demodulator for constant envelope and continuous phase signals which are angle modulated by a train of binary symbols
3744592009MSK surface acoustic wave convolver
3754584692Data transmitting-receiving system
3764583047Reception circuit for a wave modulated at one time in frequency by an analog signal and at another time in phase by a digital signal
3774575684Differential phase shift keying receiver
3784570125FSK Demodulator with concurrent carrier and clock synchronization
3794569061Phase distortion adaptive detector of minimum shift keying data

1985

3804554509Frequency shift keyed demodulation system
3814539524Method and coherent demodulators for MSK signal
3824523323Digital signal communication system for multi-level modulation including unique encoder and decoder
3834514825High speed digital modem
3844501002Offset QPSK demodulator and receiver

1984

3854471313Demodulator for phase difference demodulated signals
3864445094SMSK And MSK demodulator
3874438524Receiver for angle-modulated carrier signals

1983

3884416016Differential phase shift keyed receiver
3894414675MSK and OK-QPSK signal demodulator
3904384357Self-synchronization circuit for a FFSK or MSK demodulator
3914380081Digital receiver for four-phase-modulated carrier
3924379266PSK Demodulator with automatic compensation of delay induced phase shifts
3934373151Stochastic demodulator for phase jump-modulated signals, operating in time divided up over several channels
3944371839Differentially coherent signal detector

1982

3954362997Quadriphase differential demodulator
3964359692Rapid acquisition shift keyed signal demodulator
3974324001Synchronizer for MSK burst communications
3984320345Adaptive differential PSK demodulator

1981

3994301417Quadriphase differential demodulator
4004270206Transceiver for phase-shift modulated carrier signals
4014246653In-phase quadrature demodulator for CPSK signals
4024245215Power line signalling system

1980

4034242641Methods and apparatus for demodulating a differentially phase-modulated signal
4044233565Method and apparatus for a PSK signal detector
4054225964Detection means for providing multiple baud values per individual baud period of a carrier signal to obviate baud timing ambiguities
4064222035Multiplex system having digital coded power line signals
4074218769Means for subdividing a baud period into multiple integration intervals to enhance digital message detection
4084216543Means for deriving baud timing from an available AC signal
4094211996Error correction system for differential phase-shift-keying
4104199809Programmable data terminal set
4114182988PCM channel monitoring system for detecting errors using single parity bit
4124181967Digital apparatus approximating multiplication of analog signal by sine wave signal and method

1979

4134146841Technique for combatting jitter in multiple phase transmission system

1978

4144131882Digital two-wire irrigation control system with feedback
4154128828Differential detection systems with non-redundant error correction
4164101834Methods and apparatus for rejection of interference in a digital communications system
4174096442Crosstalk corrector and decision device for FSK
4184088957Method and apparatus for synchronously detecting a differentially encoded carrier signal
4194077021Method and arrangement for coding binary signals and modulating a carrier signal
4204072905Wide acquisition range MSK demodulator input circuit

1977

4214057759Communication receiving apparatus
4224054841Differential demodulators using surface elastic wave devices
4234042884Phase demodulator with offset frequency reference oscillator
4244032847Distortion adapter receiver having intersymbol interference correction
4254028490MSK digital data synchronization detector
4264020283MSK digital data synchronization detector
4274019149Correlative data demodulator
4284007331Apparatus for demodulation of relative phase modulated binary data
4294007330Method and apparatus for demodulation of relative phase modulated binary data
4304006418Quaternary phase-shift keying with time delayed channel
4314004100Group frame synchronization system

1976

4323997847Digital demodulator for differentially encoded phase-shift-keyed data
4333992617Chopping correlator for a MSK data signal
4343990015Differential phase shift keyed detector utilizing a circulating memory
4353983495Digital waveform generator
4363980962Demodulators
4373956623Digital phase detector
4383944939Demodulator assembly for trains with differential phase modulation
4393941929Transcoder for digital differential phase modulation
4403938052Digital demodulator for phase-modulated waveforms
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017