| Patents for H04L 27 - Modulated-carrier systems (89,721) |
|---|
| 01/12/1999 | CA2133251C Striding exerciser with upwardly curved tracks |
| 01/12/1999 | CA2101323C Apparatus and method for direct phase digitizing |
| 01/12/1999 | CA2077440C Apparatus and method of automatic gain control in a receiver |
| 01/07/1999 | WO1999000967A1 Method of synchronization |
| 01/07/1999 | WO1999000957A1 Apparatus and method for processing a quadrature amplitude modulated (qam) signal |
| 01/07/1999 | WO1999000956A1 Message transmission system with frequency dividing optical components for parallel processing of optical pulses |
| 01/07/1999 | WO1999000955A1 Absolute-phasing synchronization capturing circuit |
| 01/07/1999 | WO1999000908A1 Opposite polarization interference cancellation in satellite communication |
| 01/07/1999 | WO1998045977A3 Mapper for high data rate transmission through channels subject to robbed bit signalling |
| 01/07/1999 | EP0889619A1 FSK modulator with a phase locked loop |
| 01/07/1999 | EP0889615A2 Multicarrier transmission with variable data rate |
| 01/07/1999 | EP0889614A2 Automatic rate adaptation |
| 01/07/1999 | EP0889612A2 Viterbi decoder and decision feedback equalizer for coded modulation |
| 01/07/1999 | EP0889595A1 High-frequency signal generator |
| 01/07/1999 | EP0888681A1 Balanced transversal i,q filters for quadrature modulators |
| 01/07/1999 | EP0888675A1 Method and apparatus for conditioning modulated signals using window expansion |
| 01/07/1999 | DE19828159A1 Phase selection circuit with quadrant selector |
| 01/06/1999 | CN1204188A Device and method for linearizing transmitter in digital communication system |
| 01/05/1999 | US5857165 Method and apparatus for communication with chaotic and other waveforms |
| 01/05/1999 | US5857004 Digital data receiver |
| 01/05/1999 | US5857003 Digital radio having improved modulation and detection processes |
| 01/05/1999 | US5856998 Method and apparatus for correlating a continuous phase modulated spread spectrum signal |
| 01/05/1999 | CA2181050C Method, device, and radio for compensating for modulator frequency drift while allowing for data transmission |
| 12/30/1998 | WO1998059506A2 Improvements in or relating to information distribution |
| 12/30/1998 | WO1998059476A1 Protocol for transceiver initialisation in a discrete multitone (dmt) system |
| 12/30/1998 | WO1998059475A1 Method and device for modulation frequency correction with variable carrier frequency and several subcarriers |
| 12/30/1998 | WO1998059474A1 Method for transferring data with a plurality of non-equidistant frequency bands |
| 12/30/1998 | WO1998059473A1 Channel coding and interleaving for transmissions on a multicarrier system |
| 12/30/1998 | WO1998059472A2 Filter method and apparatus for combined multiple frequency signals |
| 12/30/1998 | WO1998059471A2 Method and apparatus for digital compensation of radio distortion in a wireless communication system |
| 12/30/1998 | WO1998059458A1 Chaotic digital code-division multiple access (cdma) communication systems |
| 12/30/1998 | WO1998059450A1 Synchronous coherent orthogonal frequency division multiplexing system |
| 12/30/1998 | WO1998059424A1 Trellis coding with punctured convolutional code |
| 12/30/1998 | WO1998059414A1 A method and apparatus for eliminating audio clicks in a radio receiver |
| 12/30/1998 | WO1998059254A1 Improved universal lan power line carrier repeater system and method |
| 12/30/1998 | WO1998044670A3 A code synchronization unit and method |
| 12/30/1998 | WO1998043367A3 Spread spectrum communication using circular waveform shift-keying |
| 12/30/1998 | EP0887978A2 FSK data receiving system |
| 12/30/1998 | EP0887977A2 Generation of addresses for a coefficient memory in an equaliser for multicarrier signals |
| 12/30/1998 | EP0887976A2 Receiver, transmitter-receiver and communication method |
| 12/30/1998 | EP0887975A2 Sequence estimation for multicarrier signals |
| 12/30/1998 | EP0886943A2 A method and apparatus for improved phase shift keyed (psk) signal demodulation |
| 12/30/1998 | EP0886923A1 Process and system for the ofdm multi-carrier transmission of digital radio signals |
| 12/30/1998 | CN1203719A Digital demodulator |
| 12/30/1998 | CN1203708A Highly stable frequency synthesizer loop with feedforward |
| 12/30/1998 | CA2241010A1 Adaptive pre-distortion apparatus for linearizing an amplifier output within a data transmission system |
| 12/30/1998 | CA2235064A1 Digital demodulator |
| 12/29/1998 | US5854840 Data transmission protocol method and apparatus |
| 12/29/1998 | US5854813 Multiple access up converter/modulator and method |
| 12/29/1998 | US5854808 Methods and apparatus for detecting the presence of a prescribed signal in a channel of a communications system |
| 12/29/1998 | US5854570 Feedback-free method for the demodulation of higher-level MQAM signals without knowledge of the transmitted symbols |
| 12/29/1998 | CA2170094C Ofdm transmission/reception system and transmitting/receiving apparatus |
| 12/29/1998 | CA2088062C Coded qam system |
| 12/23/1998 | WO1998058496A2 Transmission of digital signals by orthogonal frequency division multiplexing |
| 12/23/1998 | WO1998058471A2 Method and apparatus for implementing a transmission connection |
| 12/23/1998 | WO1998058464A1 Frequency synchronisation method for a mobile station in a mobile communications system |
| 12/23/1998 | WO1998058458A1 A method and apparatus for controlling the input impedance of an analog front end circuit of a data communications equipment (dce) device |
| 12/23/1998 | WO1998058457A2 Reduced peak-to-average amplitude multichannel link |
| 12/23/1998 | WO1998058347A1 Non-contact ic card system and non-contact ic card |
| 12/23/1998 | EP0886408A2 Multicarrier modulation using guard intervals to reduce the effects of discontinuities |
| 12/23/1998 | EP0885511A2 Pulse shaping for gmsk |
| 12/23/1998 | EP0885510A1 Method and apparatus for routing a digitized rf signal to a plurality of paths |
| 12/23/1998 | EP0885487A1 Process and device for generating a plurality of derived clock signals |
| 12/23/1998 | EP0721715A4 Multiple antenna home base for digital cordless telephones |
| 12/23/1998 | EP0658295B1 Digital signal transmission system using frequency division multiplex |
| 12/23/1998 | CN1202995A Diversity device improved inability to reproduce carrier in synchronous detection |
| 12/23/1998 | CN1202775A Apparatus and method of demodulating coded signal under OFDM transmission |
| 12/23/1998 | CN1202768A Direct conversion receiver |
| 12/23/1998 | CN1202744A Radio transmitting apparatus and gain control method for the same |
| 12/23/1998 | CA2294835A1 Method, mobile station and base station for frequency synchronization for a mobile station in a radio communications system |
| 12/22/1998 | US5852655 Communication server apparatus having distributed switching and method |
| 12/22/1998 | US5852638 Method and apparatus for demodulating a symbol using symbol fragmentation, correlation and fourier analysis |
| 12/22/1998 | US5852634 Data coding system |
| 12/22/1998 | US5852633 Method for allocating data in a data communication system |
| 12/22/1998 | US5852630 Method and apparatus for a RADSL transceiver warm start activation procedure with precoding |
| 12/22/1998 | US5852629 Repeater |
| 12/22/1998 | US5852567 Iterative time-frequency domain transform method for filtering time-varying, nonstationary wide band signals in noise |
| 12/22/1998 | US5852477 Digital TV receivers with poly-phase analog-to-digital conversion of baseband symbol coding |
| 12/22/1998 | US5852389 For modulating high speed qam data onto a carrier signal |
| 12/22/1998 | CA2119625C Equalization technique for compensating for degradation to the transmission of digitally modulated signals |
| 12/22/1998 | CA2087520C System and method for calculating channel gain and noise variance of a communication channel |
| 12/22/1998 | CA2074549C Method and apparatus for communicating digital information, such as compressed video, using trellis coded qam |
| 12/17/1998 | WO1998057473A1 Multilevel coding with time diversity |
| 12/17/1998 | WO1998057472A1 Adaptive bit allocation for variable bandwidth multicarrier communication |
| 12/17/1998 | WO1998057471A1 Absolute phasing circuit |
| 12/17/1998 | WO1998057470A1 Clock regeneration circuit |
| 12/17/1998 | WO1998057469A1 Receiver for independent sideband signals |
| 12/17/1998 | WO1998057467A1 Method and apparatus for band-adaptive demodulation |
| 12/17/1998 | WO1998057435A1 Spectral and power shaping mapper for high data rate signalling |
| 12/17/1998 | WO1998042106A3 Iq modulator, and associated method |
| 12/17/1998 | WO1998039869A3 System and method for using circular constellations with uncoded modulation |
| 12/17/1998 | WO1998037649A3 Method and apparatus for detecting corrupt pilots in the reception of orthogonal frequency division multiplex (ofdm) signals |
| 12/17/1998 | DE19725173A1 Higher order step coding method |
| 12/16/1998 | EP0884879A2 QAM transmission using spread spectrum and sequence estimation |
| 12/16/1998 | EP0884878A2 Synchronization of frame, symbol clock, and carrier in multicarrier receivers |
| 12/16/1998 | EP0884836A1 In-phase quadrature signal regeneration |
| 12/16/1998 | EP0883953A1 Radio with peak power and bandwidth efficient modulation |
| 12/16/1998 | EP0883952A1 $i(M)-ARY FSK RECEIVER |
| 12/16/1998 | EP0883951A1 Receiver with filter offset correction |
| 12/16/1998 | EP0883949A1 Channel estimation arrangement |