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| Patent ID | Title | Date Filed |
| 6430228 | Digital QAM modulator using post filtering carrier recombination
| October 10, 2000 |
| 6424683 | Circuit for demodulating two-dimensional data symbols transmitted by a carrier-based data transmission
| July 24, 2000 |
| 6385442 | Multiphase receiver and oscillator
| March 4, 1998 |
| 6385262 | Method and apparatus for changing the channel bandwidth that is receivable in a radio receiver
| December 28, 1998 |
| 6363126 | Demodulator
| December 11, 1998 |
| 6363106 | Method and apparatus for despreading OQPSK spread signals
| March 16, 1998 |
| 6363100 | Radio data communication system using spread spectrum scheme
| December 23, 1994 |
| 6359938 | Single chip VLSI implementation of a digital receiver employing orthogonal frequency division multiplexing
| October 22, 1997 |
| 6351503 | Threshold extension block phase estimator for quasi-coherent communications systems
| September 10, 1998 |
| 6317470 | Adaptive weighting method for orthogonal frequency division multiplexed soft symbols using channel state information estimates
| September 15, 1998 |
| 6301307 | Methods and apparatuses for the transmission and receipt of digital data modulated using quadrature amplitude modulation, and communication devices utilizing such apparatuses and methods
| December 19, 1997 |
| 6301291 | Pilot symbol assisted modulation and demodulation in wireless communication systems
| February 3, 2000 |
| 6289063 | QAM receiver with improved immunity to crosstalk noise
| September 2, 1998 |
| 6285721 | Method for assisting simple synchronization to the carrier of a dispersed-energy QPSK signal
| February 4, 2000 |
| 6263028 | Apparatus and method for measuring modulation accuracy
| June 25, 1997 |
| 6259748 | Signal offset elimination
| December 19, 1997 |
| 6256357 | Communication system
| August 24, 1999 |
| 6249559 | Digital frequency phase locked loop (FPLL) for vestigial sideband (VSB) modulation transmission system
| August 23, 1996 |
| 6246730 | Method and arrangement for differentially detecting an MPSK signal using a plurality of past symbol data
| June 29, 1998 |
| 6246281 | Absolute phasing circuit
| December 6, 1999 |
| 6236690 | Direct-conversion receiver for digital-modulation signal
| June 14, 1999 |
| 6236687 | Decision directed phase locked loop (DD-PLL) for use with short block codes in digital communication systems
| February 26, 1999 |
| 6226333 | QAM de-mapping circuit
| August 3, 1998 |
| 6219386 | Frameless reed-solomon coding system and method
| July 10, 1998 |
| 6204725 | Circuit for demodulating digital signal undergoing different modulation schemes
| January 20, 2000 |
| 6151369 | Digital broadcast receiver
| March 20, 1998 |
| 6141387 | Digital QAM modulator using post filtering carrier recombination
| March 19, 1998 |
| 6128353 | Code division multiple access system with dynamic histogram control
| July 7, 1997 |
| 6125148 | Method for demodulating information in a communication system that supports multiple modulation schemes
| August 29, 1997 |
| 6125136 | Method and apparatus for demodulating trellis coded direct sequence spread spectrum communication signals
| December 31, 1997 |
| 6115473 | Receiving apparatus for digital broadcasting
| August 4, 1998 |
| 6115433 | Adaptively-equalized digital receiver with carrier tracking
| June 28, 1999 |
| 6108375 | Equalization circuit for unknown QAM constellation size
| December 18, 1997 |
| 6104764 | Radio receiving apparatus for receiving communication signals of different bandwidths
| December 8, 1999 |
| 6101226 | Radio receiving apparatus for receiving communication signals of different bandwidths
| December 8, 1999 |
| 6078630 | Phase-based receiver with multiple sampling frequencies
| April 23, 1998 |
| 6075826 | Method and apparatus for obtaining initial carrier and symbol phase estimates for use in synchronizing transmitting data
| May 13, 1998 |
| 6067329 | VSB demodulator
| May 30, 1997 |
| 6064702 | Four-stage phase demodulation low frequency wireless mouse device
| July 15, 1997 |
| 6026129 | Radio receiving apparatus for receiving communication signals of different bandwidths
| March 26, 1997 |
| 6005898 | Multichannel viterbi decoder
| June 6, 1997 |
| 5999570 | Transmission apparatus, sending apparatus, and receiving apparatus, and transmission method
| November 18, 1996 |
| 5987074 | Digital communication demodulator, digital communication demodulation method and digital demodulation circuit
| April 30, 1997 |
| 5987073 | Symbol timing recovery network for a carrierless amplitude phase (CAP) signal
| March 27, 1997 |
| 5974306 | Time-share I-Q Mixer system with distribution switch feeding in-phase and quadrature polarity inverters
| August 8, 1997 |
| 5974096 | Digital quadrature detection circuit
| May 13, 1997 |
| 5966411 | Multipath equalization using taps derived from a parallel correlator
| December 18, 1996 |
| 5966405 | Frequency deviation measuring device
| March 12, 1997 |
| 5956374 | Jitter suppressing circuit
| September 17, 1996 |
| 5946359 | Parameter measuring apparatus for digital quadrature modulation signals
| March 31, 1997 |
| 5945875 | .pi./n shift phase-shift keying demodulator
| March 25, 1998 |
| 5943380 | Robust phase estimator and recoverer for digital signals affected in particular by phase jitter
| March 28, 1997 |
| 5940446 | Maximum likelihood detection of MPSK bursts with inserted reference symbols
| April 28, 1997 |
| 5940435 | Method for compensating filtering delays in a spread-spectrum receiver
| May 13, 1998 |
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