Inventor
SIH GILBERT C
US43 patents
⚠️ This page may combine multiple inventors who share the name “SIH GILBERT C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
QUALCOMM INC
40 patentsUS5687229ANov 11, 1997
Method for controlling echo canceling in an echo canceller
QUALCOMM INC154 citations99
US5307405AApr 26, 1994
Network echo canceller
QUALCOMM INC272 citations99
US6665539B2Dec 16, 2003
Position location with low tolerance oscillator
QUALCOMM INC142 citations98
US5920834AJul 6, 1999
Echo canceller with talk state determination to control speech processor functional elements in a digital telephone system
QUALCOMM INC189 citations98
US5592548AJan 7, 1997
System and method for avoiding false convergence in the presence of tones in a time-domain echo cancellation process
QUALCOMM INC101 citations98
US6208292B1Mar 27, 2001
Position location with low tolerance oscillator
QUALCOMM INC60 citations96
US6181911B1Jan 30, 2001
Simplified receiver with rotator for performing position location
QUALCOMM INC69 citations96
US5999828ADec 7, 1999
Multi-user wireless telephone having dual echo cancellers
QUALCOMM INC80 citations96
US5732134AMar 24, 1998
Doubletalk detection by means of spectral content
QUALCOMM INC54 citations96
US5646991AJul 8, 1997
Noise replacement system and method in an echo canceller
QUALCOMM INC89 citations96
US5559881ASep 24, 1996
Network echo canceller
QUALCOMM INC62 citations96
US5546459AAug 13, 1996
Variable block size adaptation algorithm for noise-robust acoustic echo cancellation
QUALCOMM INC92 citations96
US6557022B1Apr 29, 2003
Digital signal processor with coupled multiply-accumulate units
QUALCOMM INC73 citations95
US6211820B1Apr 3, 2001
Call maintainance during position location
QUALCOMM INC56 citations95
US6704555B2Mar 9, 2004
Apparatus and method for calibrating local oscillation frequency in wireless communications
QUALCOMM INC40 citations93
US6381569B1Apr 30, 2002
Noise-compensated speech recognition templates
QUALCOMM INC34 citations93
US6324227B1Nov 27, 2001
Receiver for performing position location with efficient rotator
QUALCOMM INC41 citations93
US6323805B1Nov 27, 2001
Data boundary aware base station assisted position location
QUALCOMM INC34 citations93
US6243561B1Jun 5, 2001
Offline page monitoring
QUALCOMM INC27 citations93
US5790632AAug 4, 1998
Method and apparatus for echo canceling accounting for companding induced quantization error
QUALCOMM INC42 citations93
US5675644AOct 7, 1997
Method and apparatus for canceling echo accounting for delay variations
QUALCOMM INC35 citations93
US5644596AJul 1, 1997
Method and apparatus for frequency selective adaptive filtering
QUALCOMM INC38 citations93
US6608858B1Aug 19, 2003
Multipath doppler adjusted frequency tracking loop
QUALCOMM INC48 citations92
US6606700B1Aug 12, 2003
DSP with dual-mac processor and dual-mac coprocessor
QUALCOMM INC24 citations92
US6425070B1Jul 23, 2002
Variable length instruction decoder
QUALCOMM INC31 citations92
US6278775B1Aug 21, 2001
Method and apparatus for detecting facsimile transmission
QUALCOMM INC15 citations92
US6233549B1May 15, 2001
Low frequency spectral enhancement system and method
QUALCOMM INC20 citations92
US6195041B1Feb 27, 2001
Reliable position location in memory limited environment
QUALCOMM INC23 citations92
US5892816AApr 6, 1999
Method and apparatus for detecting facsimile transmission
QUALCOMM INC18 citations92
US6480529B1Nov 12, 2002
Programmable matched filter searcher for multiple pilot searching
QUALCOMM INC35 citations91
US7366137B2Apr 29, 2008
Signal-to-noise estimation in wireless communication devices with receive diversity
QUALCOMM INC10 citations84
US7873815B2Jan 18, 2011
Digital signal processors with configurable dual-MAC and dual-ALU
QUALCOMM INC19 citations83
US7236177B2Jun 26, 2007
Processing digital video data
QUALCOMM INC18 citations82
US6584313B2Jun 24, 2003
Offline page of monitoring
QUALCOMM INC12 citations74
US6154101ANov 28, 2000
Fast slewing pseudorandom noise sequence generator
QUALCOMM INC10 citations74
US6694291B2Feb 17, 2004
System and method for enhancing low frequency spectrum content of a digitized voice signal
QUALCOMM INC9 citations73
US6615341B2Sep 2, 2003
Multiple-data bus architecture for a digital signal processor using variable-length instruction set with single instruction simultaneous control
QUALCOMM INC11 citations72
US7949351B2May 24, 2011
Data boundary aware base station assisted position location
QUALCOMM INC4 citations63
US7502911B2Mar 10, 2009
Variable length instruction fetching that retrieves second instruction in dependence upon first instruction length
QUALCOMM INC3 citations63
US7457630B2Nov 25, 2008
Data boundary aware base station assisted position location
QUALCOMM INC0 citations52