Inventor · disambiguated record
Gilbert C. Sih
Also filed as: SIH GILBERT · SIH GILBERT C · SIH GILBERT CHRISTOPHER
54 granted patents·4 pending applications·2,343 citations·filing 1992–2011
99Inventor score
Top patents by PatentIndex Score
58 records- 0198US5307405ANetwork echo cancellerQUALCOMM INC·Filed 1992·Granted Apr 26, 1994·272 cites·20 claims
- 0295US5920834AEcho canceller with talk state determination to control speech processor functional elements in a digital telephone systemQUALCOMM INC·Filed 1997·Granted Jul 6, 1999·189 cites·28 claims
- 0394US6665539B2Position location with low tolerance oscillatorQUALCOMM INC·Filed 2001·Granted Dec 16, 2003·142 cites·4 claims
- 0493US5687229AMethod for controlling echo canceling in an echo cancellerQUALCOMM INC·Filed 1996·Granted Nov 11, 1997·154 cites·32 claims
- 0592US7020180B2Method and apparatus for acquiring pilots over code space and frequency errors in a CDMA communication systemQUALCOMM INC·Filed 2001·Granted Mar 28, 2006·51 cites·19 claims
- 0690US6608858B1Multipath doppler adjusted frequency tracking loopQUALCOMM INC·Filed 2000·Granted Aug 19, 2003·48 cites·22 claims
- 0790US6557022B1Digital signal processor with coupled multiply-accumulate unitsQUALCOMM INC·Filed 2000·Granted Apr 29, 2003·73 cites·1 claims
- 0890US5646991ANoise replacement system and method in an echo cancellerQUALCOMM INC·Filed 1996·Granted Jul 8, 1997·89 cites·6 claims
- 0988US5592548ASystem and method for avoiding false convergence in the presence of tones in a time-domain echo cancellation processQUALCOMM INC·Filed 1995·Granted Jan 7, 1997·101 cites·22 claims
- 1087US5546459AVariable block size adaptation algorithm for noise-robust acoustic echo cancellationQUALCOMM INC·Filed 1993·Granted Aug 13, 1996·92 cites·23 claims
- 1186US5559881ANetwork echo cancellerQUALCOMM INC·Filed 1994·Granted Sep 24, 1996·62 cites·4 claims
- 1284US6704555B2Apparatus and method for calibrating local oscillation frequency in wireless communicationsQUALCOMM INC·Filed 2001·Granted Mar 9, 2004·40 cites·22 claims
- 1383US7263349B2Velocity responsive time trackingQUALCOMM INC·Filed 2002·Granted Aug 28, 2007·25 cites·31 claims
- 1482US7940844B2Video encoding and decoding techniquesQUALCOMM INC·Filed 2003·Granted May 10, 2011·20 cites·26 claims
- 1581US5644596AMethod and apparatus for frequency selective adaptive filteringQUALCOMM INC·Filed 1995·Granted Jul 1, 1997·38 cites·6 claims
- 1679US7088955B2Method and apparatus for acquiring and tracking pilots in a CDMA communication systemQUALCOMM INC·Filed 2001·Granted Aug 8, 2006·27 cites·46 claims
- 1778US7236177B2Processing digital video dataQUALCOMM INC·Filed 2001·Granted Jun 26, 2007·18 cites·31 claims
- 1878US5999828AMulti-user wireless telephone having dual echo cancellersQUALCOMM INC·Filed 1997·Granted Dec 7, 1999·80 cites·13 claims
- 1977US5732134ADoubletalk detection by means of spectral contentQUALCOMM INC·Filed 1997·Granted Mar 24, 1998·54 cites·11 claims
- 2076US6606700B1DSP with dual-mac processor and dual-mac coprocessorQUALCOMM INC·Filed 2000·Granted Aug 12, 2003·24 cites·6 claims
- 2175US7116957B2Velocity responsive filtering for pilot signal receptionQUALCOMM INC·Filed 2001·Granted Oct 3, 2006·21 cites·13 claims
- 2275US6181911B1Simplified receiver with rotator for performing position locationQUALCOMM INC·Filed 1998·Granted Jan 30, 2001·69 cites·15 claims
- 2374US6584313B2Offline page of monitoringQUALCOMM INC·Filed 2001·Granted Jun 24, 2003·12 cites·2 claims
- 2473US7873815B2Digital signal processors with configurable dual-MAC and dual-ALUQUALCOMM INC·Filed 2004·Granted Jan 18, 2011·19 cites·42 claims
- 2573US6529850B2Apparatus and method of velocity estimationFiled 2001·Granted Mar 4, 2003·30 cites·18 claims
- 2672US8615212B2Direct conversion receiver architectureLI TAO·Filed 2007·Granted Dec 24, 2013·3 cites·16 claims
- 2771US8316185B2Cached memory system and cache controller for embedded digital signal processorSIH GILBERT CHRISTOPHER·Filed 2010·Granted Nov 20, 2012·4 cites·17 claims
- 2871US6208292B1Position location with low tolerance oscillatorQUALCOMM INC·Filed 1998·Granted Mar 27, 2001·60 cites·6 claims
- 2968US7502911B2Variable length instruction fetching that retrieves second instruction in dependence upon first instruction lengthQUALCOMM INC·Filed 2006·Granted Mar 10, 2009·3 cites·20 claims
- 3068US6211820B1Call maintainance during position locationQUALCOMM INC·Filed 1998·Granted Apr 3, 2001·56 cites·8 claims
- 3167US8626099B2Direct conversion receiver architectureLI TAO·Filed 2006·Granted Jan 7, 2014·2 cites·23 claims
- 3267US6615341B2Multiple-data bus architecture for a digital signal processor using variable-length instruction set with single instruction simultaneous controlQUALCOMM INC·Filed 2001·Granted Sep 2, 2003·11 cites·12 claims
- 3367US5675644AMethod and apparatus for canceling echo accounting for delay variationsQUALCOMM INC·Filed 1995·Granted Oct 7, 1997·35 cites·18 claims
- 3466US7949351B2Data boundary aware base station assisted position locationQUALCOMM INC·Filed 2008·Granted May 24, 2011·4 cites·12 claims
- 3566US5790632AMethod and apparatus for echo canceling accounting for companding induced quantization errorQUALCOMM INC·Filed 1996·Granted Aug 4, 1998·42 cites·34 claims
- 3665US7366137B2Signal-to-noise estimation in wireless communication devices with receive diversityQUALCOMM INC·Filed 2003·Granted Apr 29, 2008·10 cites·44 claims
- 3765US7023902B2Apparatus and method for scalable offline CDMA demodulationQUALCOMM INC·Filed 2001·Granted Apr 4, 2006·10 cites·22 claims
- 3865US6243561B1Offline page monitoringQUALCOMM INC·Filed 1998·Granted Jun 5, 2001·27 cites·12 claims
- 3964US6694291B2System and method for enhancing low frequency spectrum content of a digitized voice signalQUALCOMM INC·Filed 2000·Granted Feb 17, 2004·9 cites·6 claims
- 4063US6323805B1Data boundary aware base station assisted position locationQUALCOMM INC·Filed 1998·Granted Nov 27, 2001·34 cites·2 claims
- 4162US6324227B1Receiver for performing position location with efficient rotatorQUALCOMM INC·Filed 1998·Granted Nov 27, 2001·41 cites·8 claims
- 4259US6480529B1Programmable matched filter searcher for multiple pilot searchingQUALCOMM INC·Filed 1999·Granted Nov 12, 2002·35 cites·14 claims
- 4359US6425070B1Variable length instruction decoderQUALCOMM INC·Filed 1998·Granted Jul 23, 2002·31 cites·6 claims
- 4459US6381569B1Noise-compensated speech recognition templatesQUALCOMM INC·Filed 1998·Granted Apr 30, 2002·34 cites·15 claims
- 4558US5903862AMethod and apparatus for detection of tandem vocoding to modify vocoder filteringFiled 1996·Granted May 11, 1999·37 cites·30 claims
- 4658US5892816AMethod and apparatus for detecting facsimile transmissionQUALCOMM INC·Filed 1996·Granted Apr 6, 1999·18 cites·4 claims
- 4755US7769950B2Cached memory system and cache controller for embedded digital signal processorQUALCOMM INC·Filed 2004·Granted Aug 3, 2010·4 cites·36 claims
- 4855US6278775B1Method and apparatus for detecting facsimile transmissionQUALCOMM INC·Filed 1999·Granted Aug 21, 2001·15 cites·16 claims
- 4953US7493131B2Velocity responsive power controlQUALCOMM INC·Filed 2002·Granted Feb 17, 2009·2 cites·23 claims
- 5050US2011170611A1Video encoding and decoding techniquesQUALCOMM INC·Filed 2011·Application pending·0 cites
Showing the top 50 of 58 patent records by PatentIndex Score.
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