Inventor
WILLIAMS RICHARD G C
GB28 patents
⚠️ This page may combine multiple inventors who share the name “WILLIAMS RICHARD G C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
3COM CORP
16 patentsUS6954492B1Oct 11, 2005
Method of differential encoding a precoded multiple modulus encoder
3COM CORP137 citations98
US6052411AApr 18, 2000
Idle mode for digital subscriber line
3COM CORP136 citations97
US6084915AJul 4, 2000
Signaling method having mixed-base shell map indices
3COM CORP80 citations96
US6898210B1May 24, 2005
System and method for providing a local area network utilizing remote transceivers
3COM CORP66 citations95
US7103096B2Sep 5, 2006
Performance evaluation of multicarrier channels with forward error correction and automatic retransmission request
3COM CORP27 citations92
US6732323B1May 4, 2004
Method of selecting initialization parameters for multi-channel data communication with forward error correction
3COM CORP27 citations92
US6690666B1Feb 10, 2004
Packet modulation for DSL
3COM CORP28 citations92
US6252901B1Jun 26, 2001
Digital modem fast retrain escape mechanism
3COM CORP26 citations92
US6396912B1May 28, 2002
Method and system for connecting multiple DSL modems to a telephone line
3COM CORP27 citations90
US6650658B1Nov 18, 2003
Controlled aliasing to simplify service selection
3COM CORP15 citations84
US7131038B2Oct 31, 2006
Performance evaluation of multicarrier channels
3COM CORP17 citations83
US6421376B1Jul 16, 2002
Methods of using digital modem identification information
3COM CORP16 citations82
US6317455B1Nov 13, 2001
System and method for user information transfer before modem connection
3COM CORP16 citations82
US5995548ANov 30, 1999
Signaling method using multiple modulus shell mapping
3COM CORP7 citations68
US6501802B1Dec 31, 2002
Digital silence for a PCM data communication system
3COM CORP4 citations63
US6031873AFeb 29, 2000
Nested shell mapping
3COM CORP2 citations63
TEXAS INSTRUMENTS INC
6 patentsUS7471745B2Dec 30, 2008
Method and apparatus for channel quality metric generation within a packet-based multicarrier modulation communication system
TEXAS INSTRUMENTS INC28 citations92
US7295517B2Nov 13, 2007
Method and apparatus for channel quality metric generation within a packet-based multicarrier modulation communication system
TEXAS INSTRUMENTS INC40 citations92
US7227949B2Jun 5, 2007
Separate self-synchronizing packet-based scrambler having replay variation
TEXAS INSTRUMENTS INC51 citations92
US7236544B2Jun 26, 2007
Enhanced preamble to enable low power detection
TEXAS INSTRUMENTS INC13 citations84
US7224666B2May 29, 2007
Estimating frequency offsets using pilot tones in an OFDM system
TEXAS INSTRUMENTS INC17 citations82
US6999534B2Feb 14, 2006
Method for mitigating DC offset in a sign bit correlator
TEXAS INSTRUMENTS INC0 citations39
BRITISH TELECOMM
4 patentsUS5598435AJan 28, 1997
Digital modulation using QAM with multiple signal point constellations not equal to a power of two
BRITISH TELECOMM145 citations98
US5493586AFeb 20, 1996
TCM scheme with fractional bit rates, framing signals and constellation shaping
BRITISH TELECOMM45 citations91
US5448592ASep 5, 1995
Coded QAM system
BRITISH TELECOMM35 citations91
US5617542AApr 1, 1997
Keyboard terminal with rapid keyed character local display that is altered if character transmitted to host is not timely acknowledged
BRITISH TELECOMM4 citations63