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Your search returned 253 patents.
( 370/206 in Current US Classification )
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Patent IDTitleDate Filed
6647077 Multipath parameter estimation in spread-spectrum communications systems July 31, 2000
6643339 Receiver and receiving method February 1, 2000
6643336 DC offset and bit timing system and method for use with a wireless transceiver April 18, 2000
6633616 OFDM pilot tone tracking for wireless LAN August 21, 2001
6625239 Circuit for capturing frame sync signal in receiver June 27, 2000
6625112 Synchronization March 11, 1999
6625111 OFDM communication apparatus March 6, 2000
6608843 Pilot signal transmission technique and digital communication system using same April 15, 1999
6603961 Diversity receiving apparatus February 1, 2000
6594505 Mobile telephone system capable of coping with a variety of mobile radio telephone systems by a single mobile radio telephone July 7, 1999
6587452 High performance signal structure with multiple modulation formats January 4, 1999
6560209 Method for frequency division duplex communications April 19, 1999
6559757 Data communication over power lines October 26, 2000
6553019 Communications system employing orthogonal frequency division multiplexing based spread sprectrum multiple access December 23, 1999
6552995 Spectrum diffusion signal analyzer and method of analyzing diffusion signal February 18, 1999
6549583 Optimum phase error metric for OFDM pilot tone tracking in wireless LAN February 21, 2001
6549561 OFDM pilot tone tracking for wireless LAN August 21, 2001
6535562 Method and apparatus for rotating the phase of a complex signal November 30, 1999
6535478 Reduced peak-to-average amplitude multichannel link July 17, 2001
6526107 Synchronization acquiring circuit July 12, 2000
6515961 Decresting peaks in a CDMA signal March 10, 1999
6487258 Methods and apparatus for decoding data December 16, 1998
6456612 Device and method for generating short PN code in a mobile communication system November 2, 1999
6449246 Multicarrier personal access communication system December 30, 1999
6445747 Method and apparatus to reduce peak to average power ratio in multi-carrier modulation December 31, 1998
6442129 Enhanced channel estimation December 6, 1999
6430519 Method for evaluating an input data signal and circuit system for carrying out said method February 11, 2000
6430170 Method and apparatus for generating random numbers from a communication signal May 27, 1999
6421336 Variable rate orthogonally coded reverse link structure May 18, 1999
6370156 Modulation/demodulation of a pilot carrier, means and method to perform the modulation/demodulation April 18, 1997
6366588 Method and apparatus for achieving data rate variability in orthogonal spread spectrum communication systems February 27, 1998
6366554 Multi-carrier transmission systems June 1, 1999
6359938 Single chip VLSI implementation of a digital receiver employing orthogonal frequency division multiplexing October 22, 1997
6353358 Quadrature demodulation circuit with a pseudo locked state detection system March 23, 2000
6345377 Digital audio broadcasting method using puncturable convolutional code April 20, 2000
6324171 Multicarrier CDMA base station system and multi-code wave forming method therof December 4, 1998
6320842 Spread spectrum communication apparatus January 30, 1997
6301221 Methods and apparatus for encoding data August 22, 1998
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