| Patents for H04L 27 - Modulated-carrier systems (89,721) |
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| 09/12/1997 | CA2198791A1 Method and a circuit arrangement for signal processing in a telecommunication system |
| 09/11/1997 | DE19608666A1 Verfahren und Anordnung zur Ableitung von mehreren Taktsignalen Method and apparatus for deriving a plurality of clock signals |
| 09/10/1997 | EP0794638A2 Differential detection receiver |
| 09/10/1997 | EP0794634A2 Clock recovery circuit for QAM demodulator |
| 09/10/1997 | EP0794501A2 Information transmitting method and basestation for receiving information |
| 09/10/1997 | CN1159268A Transmission system using transmitter withphase modulator and frequency multiplier |
| 09/10/1997 | CN1159258A Compensation for multi-path interference using pilot symbols |
| 09/10/1997 | CN1035854C Method and apparatus for equalizing corrupted signal in receiver |
| 09/09/1997 | US5666386 Digital demodulating apparatus capable of selecting proper sampling clock for data transmission speed |
| 09/09/1997 | US5666383 Variable rate discrete multiple tone bidirectional transmission |
| 09/09/1997 | US5666382 Method and apparatus for communicating in the presence of power and propulsion system interference |
| 09/09/1997 | US5666378 High performance modem using pilot symbols for equalization and frame synchronization |
| 09/09/1997 | US5666170 Apparatus for decoding video signals encoded in different formats |
| 09/09/1997 | US5666084 Multi-level demodulator and VCO circuit |
| 09/09/1997 | CA2099410C Modulated signal transmission system capable of removing not only a nonlinear distortion but also a linear distortion |
| 09/09/1997 | CA2034007C Modulator-demodulator device capable of detecting an unsynchronized frame state |
| 09/04/1997 | WO1997032391A2 Receiver with digital processing of a phase-splitted input signal |
| 09/04/1997 | DE19707290A1 Coding and transmission method for information signals |
| 09/04/1997 | DE19607468A1 Photosignal system for information transmission |
| 09/03/1997 | EP0793371A1 Differential orthogonal demodulation providing soft input for Viterbi decoding |
| 09/03/1997 | EP0793370A2 Phase ambiguity resolution circuit for BPSK communication system |
| 09/03/1997 | EP0793369A2 Method for automatically obtaining, in closed form, the coefficients of an equalizing network in a system of data transmission of Orthogonal Frequency Division Multiplexing (OFDM) type |
| 09/03/1997 | EP0793365A2 Filter in a digital timing recovery system |
| 09/03/1997 | EP0793364A2 Oscillation network in a digital timing recovery system |
| 09/03/1997 | EP0793363A2 Timing recovery system for a digital signal processor |
| 09/03/1997 | EP0792546A1 Distortion corrector for two data flows |
| 09/03/1997 | EP0550712B1 Method and device for modulating and demodulating transmission subchannels for a compatible television system |
| 09/03/1997 | EP0540636B1 Coded qam system |
| 09/03/1997 | CN1158522A Method and apparatus for simultaneous voice/data transmission |
| 09/02/1997 | US5663989 Control arrangements for digital radio receivers |
| 09/02/1997 | US5663986 Apparatus and method of transmitting data over a coaxial cable in a noisy environment |
| 09/02/1997 | US5663766 Digital data encoding in video signals using data modulated carrier signals at non-peaks in video spectra |
| 09/02/1997 | US5663691 Estimator for estimating an operating defect in a quadrature modulator, and a modulation stage using the estimator |
| 08/28/1997 | WO1997031466A2 Fsk receiver |
| 08/28/1997 | WO1997031465A2 Frequency control in an fsk receiver |
| 08/28/1997 | DE19614543C1 Entzerrer mit erweiterter Kanalschätzung für einen Empfänger in einem digitalen Übertragungssystem Equalizer with extended channel estimation for a receiver in a digital transmission system |
| 08/28/1997 | DE19607207A1 Datastream total rate and transmission performance partitioning method |
| 08/27/1997 | EP0792053A1 Digital transmission system using continuous phase modulation |
| 08/27/1997 | EP0792052A1 Local signal generator |
| 08/27/1997 | EP0792040A2 Data receiving apparatus |
| 08/27/1997 | EP0792036A1 Digital data optical transmission method |
| 08/27/1997 | EP0792030A2 Dual mode receiver having battery saving capability |
| 08/27/1997 | EP0792017A2 High-frequency radio signal receiving apparatus for digital communication |
| 08/27/1997 | EP0792010A1 Frequency tracking filter, signal processing circuit with tunable transconductance and mehtod of controlling a transconductance circuit |
| 08/27/1997 | EP0791263A1 Computer-based multifunction personal communication system with caller id |
| 08/27/1997 | EP0536390B1 Data bit to constellation symbol mapper |
| 08/27/1997 | EP0417272B1 Receiver for quadraphase modulation signals |
| 08/27/1997 | CN2261117Y Data transmission channel monitoring switch-over device |
| 08/27/1997 | CN1158040A Method for transmitting orthogonal frequency division multiplex signal, apparatus for transmitting signal and apparatus for receiving the signal |
| 08/27/1997 | CN1158029A Phase locked loop with controllable response time |
| 08/26/1997 | US5661765 Receiver and transmitter-receiver |
| 08/26/1997 | US5661762 Multiple antenna home base for digital cordless telephones |
| 08/26/1997 | US5661761 Quasi-synchronous detection and demodulation circuit and frequency discriminator used for the same |
| 08/26/1997 | US5661759 Digital FSK receiver using double zero-crossing |
| 08/26/1997 | US5661758 Single cycle data encoding method and apparatus |
| 08/26/1997 | US5661757 Radio-card communication system |
| 08/26/1997 | US5661753 Decision feedback equalizer having leaky tap gain controllers |
| 08/26/1997 | US5661752 Circuit for detecting word sequences in a modem |
| 08/26/1997 | US5661750 Direct sequence spread spectrum system |
| 08/26/1997 | US5661734 Trellis coded FM digital communications system and method |
| 08/26/1997 | US5661718 Simultaneous analog and digital communication |
| 08/26/1997 | US5661568 Data communication apparatus |
| 08/26/1997 | CA2098934C Circular limiter |
| 08/21/1997 | WO1997030536A1 Frequency error detector |
| 08/21/1997 | WO1997030531A1 Improvements in or relating to ofdm systems |
| 08/21/1997 | WO1997030511A1 Apparatus for generating timing signal for a digital television signal receiver |
| 08/21/1997 | WO1997023051A3 Radio apparatus |
| 08/21/1997 | DE19605704A1 Frequenzfehlerdetektor Frequency error detector |
| 08/21/1997 | CA2217868A1 Frequency error detector |
| 08/20/1997 | EP0790729A1 Correction of PLL phase noise in PSK and QAM receivers |
| 08/20/1997 | EP0790728A2 FSK modulator |
| 08/20/1997 | EP0790722A1 Automatic mode detection in digital audio receivers |
| 08/20/1997 | EP0789958A1 Method of, and apparatus for, symbol timing recovery |
| 08/20/1997 | EP0789953A1 Automatic tuning of a radio transceiver |
| 08/20/1997 | EP0754378A4 High speed bidirectional digital cable transmission system |
| 08/20/1997 | CN1157676A Efficient linear power amplification |
| 08/20/1997 | CN1157515A Wireless receiving system |
| 08/19/1997 | US5659891 Multicarrier techniques in bandlimited channels |
| 08/19/1997 | US5659583 Tone canceller for QAM demodulator |
| 08/19/1997 | US5659579 Multilevel coding for fractional bits |
| 08/19/1997 | US5659578 High rate Reed-Solomon concatenated trellis coded 16 star QAM system for transmission of data over cellular mobile radio |
| 08/19/1997 | US5659574 Multi-bit correlation of continuous phase modulated signals |
| 08/19/1997 | US5659573 Method and apparatus for coherent reception in a spread-spectrum receiver |
| 08/19/1997 | US5659263 Circuit and method for correcting phase error in a multiplier circuit |
| 08/19/1997 | CA2121935C Simultaneous analog and digital communication with an enhanced data rate during near silence |
| 08/19/1997 | CA1339322C Interactive television and data transmission system |
| 08/14/1997 | WO1997029576A1 Coherent modulation of cpm signals |
| 08/14/1997 | WO1997029568A1 Method and apparatus for joint frequency offset and timing estimation of a multicarrier modulation system |
| 08/14/1997 | WO1997029552A1 Method and circuit arrangement for processing a received signal |
| 08/14/1997 | WO1997029551A1 Method and circuit arrangement for reducing offset voltage of a signal |
| 08/14/1997 | CA2246314A1 Coherent modulation of cpm signals |
| 08/14/1997 | CA2188494A1 Dual mode demodulating device and method |
| 08/13/1997 | EP0789466A2 Frequency error measuring apparatus and radio apparatus |
| 08/13/1997 | EP0789464A2 Mobile two-way communication system |
| 08/13/1997 | EP0621998B1 Method and apparatus for the formatting of data for transmission |
| 08/13/1997 | CN1157070A Frame synchronization in multicarrier transmission systems |
| 08/12/1997 | US5657358 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or plurality of RF channels |
| 08/12/1997 | US5657356 Control signal detection method with calibration error and subscriber unit therewith |
| 08/12/1997 | US5657355 Signal processor module |
| 08/12/1997 | US5657354 Planar approximating method for computing the log-likelihood ratio optimal signal metric of each component code decoder in 8-PSK block coded modulation systems |