| Patents for H04L 27 - Modulated-carrier systems (89,721) |
|---|
| 07/29/1998 | CN1189261A High-frequency signal receiver |
| 07/29/1998 | CN1189037A Multi-level comparator for demodulator |
| 07/29/1998 | CN1189036A Frequency-modulated sub-channel high-speed data transmission receiver |
| 07/29/1998 | CN1189024A Device and method for digital vestigial sideband modulation |
| 07/29/1998 | CN1189023A Device for determining digital single frequency deviation and receiver |
| 07/29/1998 | CN1189019A Digital transmission system and method comprising product code combined with multidimensional modulation |
| 07/28/1998 | US5787362 AM removal from FM signal generated by IQ modulator |
| 07/28/1998 | US5787133 Method for producing a signal |
| 07/28/1998 | US5787126 Detector and receiving and transmitting apparatus |
| 07/28/1998 | US5787125 Apparatus for deriving in-phase and quadrature-phase baseband signals from a communication signal |
| 07/28/1998 | US5787124 Quadrature detector and amplitude error correction method for quadrature detector |
| 07/28/1998 | US5787123 Receiver for orthogonal frequency division multiplexed signals |
| 07/28/1998 | US5787121 Data transmission system |
| 07/28/1998 | US5787118 Adaptive equalizer and adaptive diversity equalizer |
| 07/28/1998 | US5787116 Apparatus and method for detecting amplitude modulated answer back toned signals |
| 07/28/1998 | US5787113 Mitigating clipping and quantization effects in digital transmission systems |
| 07/28/1998 | US5786725 Reduced complexity maximum likelihood multiple symbol differential detector |
| 07/28/1998 | CA2110881C Adaptive equalizer capable of compensating for carrier frequency offset |
| 07/28/1998 | CA2101248C System for broadcasting and receiving digital data, receiver and transmitter for use in such system |
| 07/28/1998 | CA2092495C Communication system |
| 07/23/1998 | WO1998032268A1 Method and apparatus for channel estimation in ofdm transmission system |
| 07/23/1998 | WO1998032267A1 Ofdm receiver using pilot carriers |
| 07/23/1998 | WO1998032241A2 Circuit for two-wire / four-wire conversion |
| 07/23/1998 | WO1998032221A1 Method and apparatus for compensating for imbalances between quadrature signals |
| 07/23/1998 | DE19702142A1 Digital signal transmission system for subscriber connection network |
| 07/23/1998 | CA2277184A1 Method and apparatus for channel estimation in ofdm transmission system |
| 07/22/1998 | EP0854620A2 Demodulating apparatus for OFDM signals |
| 07/22/1998 | EP0854619A1 Method to allocate data bits, multicarrier transmitter and receiver using the method, and related allocation message generator |
| 07/22/1998 | EP0854588A2 Power control and carrier synchronization in a cellular mobile telephone system |
| 07/22/1998 | EP0853853A1 Multicarrier modulation |
| 07/22/1998 | EP0853845A2 Distributed circuit switched radiocommunications network |
| 07/22/1998 | EP0577672B1 Tcm scheme with fractional bit rates, framing signals and constellation shaping |
| 07/22/1998 | EP0571530B1 Transmission of well-logging data over bandpass channels using quadrature amplitude modulation |
| 07/22/1998 | CN1188579A Slice predictor for signal receiver |
| 07/22/1998 | CN1188578A Demodulator and method of demodulation in TDM receiver |
| 07/22/1998 | CN1188577A Design of multicarrier signal |
| 07/21/1998 | US5784689 Output control circuit for transmission power amplifying circuit |
| 07/21/1998 | US5784686 IQ combiner technology in modulated backscatter system |
| 07/21/1998 | US5784418 Dual band digital broadcast receiver |
| 07/21/1998 | US5784417 Cyclic trelles coded modulation |
| 07/21/1998 | US5784414 Receiver with quadrature decimation stage, method of processing digital signals |
| 07/21/1998 | US5784413 Direct digital synthesis frequency-agile QPSK modulator |
| 07/21/1998 | US5784412 Transmitter and method for transmitting a modulated wave with variable envelope |
| 07/21/1998 | US5784402 FMOD transceivers including continuous and burst operated TDMA, FDMA, spread spectrum CDMA, WCDMA and CSMA |
| 07/21/1998 | US5784366 Wideband code-division-multiple access system and method |
| 07/21/1998 | US5784363 Arrangement in a multi-user system |
| 07/21/1998 | US5783974 Digital interpolation up sampling circuit and digital modulator using same |
| 07/21/1998 | US5783967 Frequency shift keying demodulation circuit using logic circuitry |
| 07/20/1998 | CA2227102A1 Demodulating apparatus |
| 07/16/1998 | WO1998015083A3 Signal transformation method and apparatus |
| 07/16/1998 | DE19735798C1 Transceiver device for mobile radio telephone |
| 07/15/1998 | EP0853410A2 Fine position of the FFT window in multicarrier receivers |
| 07/15/1998 | EP0853409A2 Device and method for digital vestigial sideband modulation |
| 07/15/1998 | EP0853390A2 Echo canceller for an asymmetric digital subscriber loop modem |
| 07/15/1998 | EP0853383A2 Re-sampling circuit and associated method |
| 07/15/1998 | EP0853377A2 Four-phase phase converter |
| 07/15/1998 | EP0852869A1 Method and system for transferring data between a mobile and a stationary group of persons |
| 07/15/1998 | EP0852867A1 Method and system for rapidly generating and transmitting a character sequence using voice frequencies |
| 07/15/1998 | EP0852866A2 Receiver architecture for the receiving of angle-modulated/ angle-keyed carrier signals |
| 07/15/1998 | EP0697155B1 Wireless data transceiver |
| 07/15/1998 | CN1187930A Adaptive channel allocation in frequency division multiplexed system |
| 07/15/1998 | CN1187915A Wideband zero IF demodulator using single L. O |
| 07/15/1998 | CN1187718A Digital transmission system and method comprising punctured product code combined with quadrature amplitude modulation |
| 07/14/1998 | US5781728 Flexible asymmetrical digital subscriber line ADSL transmitter, remote terminal using same, and method therefor |
| 07/14/1998 | US5781617 Communication server apparatus using frequency multiplexing and method |
| 07/14/1998 | US5781589 Digital slope detector and method |
| 07/14/1998 | US5781588 FSK signal receiver |
| 07/14/1998 | US5781076 Digital quadrature amplitude modulators |
| 07/14/1998 | US5781064 Digital filtering system for filtering digital outputs of a four level FSK demodulator |
| 07/14/1998 | CA2125489C Timing and automatic frequency control of digital receiver using the cyclic properties of a non-linear operation |
| 07/14/1998 | CA2123333C Radio beacon phase modulator for search and rescue satellite-aided tracking |
| 07/10/1998 | CA2225709A1 Device and method for digital vestigial sideband modulation |
| 07/09/1998 | WO1998029996A1 Method and device for formatting a clipping noise in a multicarrier modulation |
| 07/09/1998 | WO1998029995A1 Apparatus, methods and computer program products for sequential maximum likelihood estimating communications signals using whitening path metrics |
| 07/09/1998 | WO1998029979A1 Transmitter method and transmission system using adaptive coding based on channel characteristics |
| 07/09/1998 | CA2276777A1 Transmitter method and transmission system using adaptive coding based on channel characteristics |
| 07/09/1998 | CA2276332A1 Method and device for formatting a clipping noise in a multicarrier modulation |
| 07/09/1998 | CA2276255A1 Apparatus, methods and computer program products for sequential maximum likelihood estimating communications signals using whitening path metrics |
| 07/08/1998 | EP0852439A2 Apparatus for the generation and/or reception of a modulated radio signal |
| 07/08/1998 | EP0852438A2 Trellis shaping for multilevel transmission, with levels matched to network quantisation |
| 07/08/1998 | EP0852087A2 Method for the common transmission of digital and analogue modulated radio broadcasting and/ or television broadcasting signals |
| 07/08/1998 | EP0653133A4 Spread spectrum communication system particularly suited for rf network communication. |
| 07/08/1998 | CN1187089A Circuit and method for adaptively calculating decision error of digital signal in digital modulation system |
| 07/07/1998 | US5778032 Data reproducing method and data reproducing unit |
| 07/07/1998 | US5778029 Signal conditioner with symbol addressed lookup table producing values which compensate linear and non-linear distortion using transversal filter |
| 07/07/1998 | US5778027 Method and apparatus for determining signal components using digital signal processing |
| 07/07/1998 | US5777692 Receiver based methods and devices for combating co-channel NTSC interference in digital transmission |
| 07/07/1998 | CA2110017C Dqpsk delay detection circuit that produces stable clock signal in response to both i and q signals |
| 07/07/1998 | CA2043782C Error control coding arrangement for digital communications system |
| 07/03/1998 | CA2194326A1 Process for multi-sensor equalisation in a radio receiver in the presence of interference and multiple propagation paths |
| 07/02/1998 | WO1998028889A1 Cdma system with multiple constellations |
| 07/02/1998 | WO1998028888A1 Adaptive predistortion system |
| 07/02/1998 | WO1998028868A1 Method and apparatus for variably allocating upstream and downstream communication spectra |
| 07/02/1998 | WO1998028852A2 Continuous phase modulator, comprising a direct digital synthesizer followed by a phase locked loop |
| 07/02/1998 | WO1998028839A1 Dpsk demodulator |
| 07/02/1998 | WO1998028703A2 Symbol lock detector |
| 07/02/1998 | WO1998028677A1 Bit synchronization for interrogator |
| 07/02/1998 | DE19758014A1 Rahmensynchronisationsverfahren und -vorrichtung zur Verwendung in einem ein OFDM-Verfahren anwendendes digitales Kommunikationssystem Frame synchronization method and apparatus for use in a method, an OFDM-applying digital communication system |
| 07/02/1998 | CA2275589A1 Digital continuous phase modulation for a dds-driven phase locked loop |
| 07/02/1998 | CA2274718A1 Symbol lock detector |