| Patents for H04L 27 - Modulated-carrier systems (89,721) |
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| 02/25/1997 | US5606714 Integrated data processing system including CPU core and parallel, independently operating DSP module and having multiple operating modes |
| 02/25/1997 | US5606579 Digital VSB detector with final IF carrier at submultiple of symbol rate, as for HDTV receiver |
| 02/25/1997 | US5606578 Radio with peak power and bandwidth efficient modulation using asymmetric symbol constellations |
| 02/25/1997 | US5606577 Method and apparatus for a DMT transmitter having a data for matter coupled directly to a constellation encoder |
| 02/25/1997 | US5606575 FFT-based channelizer and combiner employing residue-adder-implemented phase advance |
| 02/25/1997 | CA2054364C Coherent detector for quadrature phase shifted keying (qpsk) modulation in a time division multiple access (tdma) system |
| 02/22/1997 | CA2183778A1 Method for interleaving data frames, forward error correcting device and modulator including such a device |
| 02/20/1997 | WO1997006623A1 Data receiving method for receiving data through predetermined clear zones of a powerline |
| 02/20/1997 | WO1997006620A1 Method of, and apparatus for, symbol timing recovery |
| 02/20/1997 | WO1997006607A1 Automatic tuning of a radio transceiver |
| 02/20/1997 | WO1997002665A3 Automatic power control system for a code division multiple access (cdma) communications system |
| 02/20/1997 | DE19540250C1 Pseudo coherent demodulation method |
| 02/20/1997 | DE19529982A1 Verfahren zur Synchronisation Method for synchronization |
| 02/19/1997 | EP0758507A1 Tx preemphasis filter and tx power control based high speed two-wire modem |
| 02/19/1997 | CN1143432A Local oscillator phase noise cancelling modulation technique |
| 02/19/1997 | CN1143296A Signal processing system |
| 02/19/1997 | CN1143288A Error detection and correction system for stream of encoded data |
| 02/19/1997 | CN1143286A Communication device with improved echo and noise control in quantization channel |
| 02/18/1997 | US5604772 Transmission system and modem utilizing coded modulation |
| 02/18/1997 | US5604771 System and method for transmitting sound and computer data |
| 02/18/1997 | US5604770 PI/4 DQPSK modulation with coarse mapper precession and fine filter precession |
| 02/18/1997 | US5604768 Frequency synchronized bidirectional radio system |
| 02/18/1997 | US5604746 Digital data receiver |
| 02/18/1997 | US5603515 Cylinder head sealing system with carrier plate and removable engine sealing gaskets |
| 02/13/1997 | WO1997005721A1 Reducing peak-to-average variance of a composite transmitted signal via out-of-band artifact signaling |
| 02/13/1997 | WO1997005704A1 Multi-channel transceiver having an adaptive antenna array and method |
| 02/13/1997 | WO1997002714A3 Code division multiple access (cdma) communication system |
| 02/12/1997 | EP0757858A1 Method and apparatus for automatic gain control in a digital receiver |
| 02/12/1997 | EP0513313B1 Method for resetting the local oscillators of a receiver and device for implementing such method |
| 02/12/1997 | CN1142721A Signal communication system capable of recognizing reception of reception desired signal |
| 02/11/1997 | US5603097 Digital radio system capable of high-speed frequency changing at low power consumption |
| 02/11/1997 | US5603017 Parallel integrated circuit having DSP module and CPU core operable for switching between two independent asynchronous clock sources while the system continues executing instructions |
| 02/11/1997 | US5602881 Receiver for a digital communication system |
| 02/11/1997 | US5602879 Clock recovering circuit for digital demodulator |
| 02/11/1997 | US5602877 Method and apparatus for information recovery in a radio communication device |
| 02/11/1997 | US5602875 Method and apparatus for encoding and decoding information in a digtial communication system |
| 02/11/1997 | US5602874 Method and apparatus for reducing quantization noise |
| 02/11/1997 | US5602868 Multiple-modulation communication system |
| 02/11/1997 | US5602835 OFDM synchronization demodulation circuit |
| 02/11/1997 | US5602833 Method and apparatus for using Walsh shift keying in a spread spectrum communication system |
| 02/11/1997 | US5602669 Digital signal transmission apparatus, digital signal transmission method, and digital signal transmitter-receiver |
| 02/11/1997 | US5602601 Phase error corrector for HDTV reception system |
| 02/11/1997 | CA2022746C Radio system for data transmission with passive terminal station |
| 02/06/1997 | WO1997004572A1 Pulse shaping for multicarrier modulation |
| 02/06/1997 | WO1997004525A2 A wireless digital communication device, and a pulse shaping network |
| 02/05/1997 | EP0757483A2 Digital I-Q converter circuit |
| 02/05/1997 | EP0757464A2 QAM spread spectrum demodulation system |
| 02/05/1997 | EP0757463A2 An MPSK demodulator |
| 02/05/1997 | EP0757462A2 Frequency offset correction for a data receiving system |
| 02/05/1997 | EP0757461A2 Method of estimating signal quality for a direct sequence spread spectrum receiver |
| 02/05/1997 | EP0757451A2 Short burst acquisition circuit for direct sequence spread spectrum links |
| 02/05/1997 | EP0757449A2 Short burst direct acquisition direct sequence spread spectrum receiver |
| 02/05/1997 | EP0630538A4 Binary phase shift keying modulation system or frequency multiplier. |
| 02/05/1997 | CN1142293A Multi-channel digital transceiver and method thereof |
| 02/05/1997 | CN1142291A Frequency band separation signal digitizer and method thereof |
| 02/05/1997 | CN1142148A Digital intermediate-frequency enlarge-releasing method and apparatus thereof |
| 02/05/1997 | CN1142147A Device for regulating control-modulation device of microwave doble-phase phase shifting key and frequency mixing device, and method thereof |
| 02/04/1997 | US5600678 Programmable digital modulator and methods of modulating digital data |
| 02/04/1997 | US5600677 Trellis coded modulation system for digital television signal |
| 02/04/1997 | US5600676 Modulation scheme with low envelope variation for mobile radio by constraining a maximum modulus of a differential phase angle |
| 02/04/1997 | US5600673 Circuit for discriminating received signal modulation type |
| 02/04/1997 | US5600672 Communication system |
| 02/04/1997 | US5600649 Digital simultaneous voice and data modem |
| 02/04/1997 | CA2081535C Method and apparatus for detecting control signals |
| 01/30/1997 | WO1997003518A1 Apparatus for decoding video signals encoded in different formats |
| 01/30/1997 | WO1997003510A1 Carrier recovery for digitally phase modulated signals, using a known sequence |
| 01/30/1997 | WO1997003509A1 Apparatus for demodulating and decoding video signals |
| 01/30/1997 | WO1996042160A3 Transmission system using transmitter with phase modulator and frequency multiplier |
| 01/29/1997 | EP0756389A1 Assignment circuit for a transmission channel on the mains network |
| 01/29/1997 | EP0755601A1 Improved adsl compatible discrete multi-tone apparatus |
| 01/29/1997 | CN1141703A Higher order digital phase loop filter |
| 01/28/1997 | US5598441 Carrier acquisition technique for mobile radio QPSK demodulator |
| 01/28/1997 | US5598439 Method and apparatus for symbol clock phase recovery |
| 01/28/1997 | US5598437 Multichannel frequency and phase variable radio frequency simulator |
| 01/28/1997 | US5598436 Digital transmission system with predistortion |
| 01/28/1997 | US5598435 Digital modulation using QAM with multiple signal point constellations not equal to a power of two |
| 01/28/1997 | US5598432 Equalizing received signal samples by receiving input in a first register at a first rate greater than or equal to the transmission rate and further receiving samples into a plurality of register at a second rate lower than the first rate |
| 01/28/1997 | US5598430 Analog/digital receiver |
| 01/28/1997 | US5598290 Data transfer apparatus utilizing infrared rays |
| 01/28/1997 | US5598125 Method for demodulating a digitally modulated signal and a demodulator |
| 01/23/1997 | WO1997002714A2 Code division multiple access (cdma) communication system |
| 01/23/1997 | WO1997002675A2 Cdma modem |
| 01/23/1997 | WO1997002674A1 A wide-band application based upon a narrow-band tdma system |
| 01/23/1997 | WO1997002673A1 Group modulator for a broadband communications system |
| 01/23/1997 | WO1997002665A2 Automatic power control system for a code division multiple access (cdma) communications system |
| 01/23/1997 | WO1997002663A1 Code acquisition in a cdma communication system using multiple walsh channels |
| 01/23/1997 | WO1997000566A3 Digital radio signal frequency translation and oversampling device and method |
| 01/23/1997 | CA2848679A1 Noise level estimation |
| 01/23/1997 | CA2645140A1 Noise level estimation |
| 01/22/1997 | EP0755141A2 Adaptive decision feedback equalization for communication systems |
| 01/22/1997 | EP0755128A1 Transmission circuit for binary data on the mains network using several transmission channels |
| 01/22/1997 | EP0754379A1 Method and apparatus for robust communications based upon angular modulation |
| 01/22/1997 | EP0754378A1 High speed bidirectional digital cable transmission system |
| 01/22/1997 | EP0754320A1 Circuit arrangement comprising a permutation unit and method of processing a batch of items |
| 01/22/1997 | CN1141108A Trellis coded modulation system for HDTV |
| 01/22/1997 | CN1141107A Data frame format for variable size data constellations |
| 01/22/1997 | CN1141103A A High-data-rate wireless local-area network |
| 01/22/1997 | CN1141101A Convolutional interleaver and deinterleaver |
| 01/22/1997 | CN1140935A Digital receiver |
| 01/21/1997 | US5596764 Debug mechanism for parallel-operating DSP module and CPU core |