Inventor · disambiguated record
William Chunhung Yip
Also filed as: YIP WILLIAM C · YIP WILLIAM CHUNHUNG
22 granted patents·999 citations·filing 1991–2004
97Inventor score
Top patents by PatentIndex Score
22 records- 0189US6084967ARadio telecommunication device and method of authenticating a user with a voice authentication tokenMOTOROLA INC·Filed 1997·Granted Jul 4, 2000·233 cites·15 claims
- 0287US5926756AMethod and system for programming a cellular phoneMOTOROLA INC·Filed 1996·Granted Jul 20, 1999·140 cites·8 claims
- 0382US6799062B1Full-duplex hands-free transparency circuit and method thereforMOTOROLA INC·Filed 2000·Granted Sep 28, 2004·34 cites·21 claims
- 0477US5896452AMulti-channel echo canceler and method using convolution of two training signalsMOTOROLA INC·Filed 1996·Granted Apr 20, 1999·69 cites·15 claims
- 0577US5856970AMulti-channel echo cancellation method and apparatusMOTOROLA INC·Filed 1996·Granted Jan 5, 1999·64 cites·27 claims
- 0676US7142665B2Automatic gain control for an adaptive finite impulse response and method thereforeFREESCALE SEMICONDUCTOR INC·Filed 2004·Granted Nov 28, 2006·20 cites·14 claims
- 0776US5357567AMethod and apparatus for volume switched gain controlMOTOROLA INC·Filed 1992·Granted Oct 18, 1994·32 cites·20 claims
- 0873US5815020ABalance differential receiverMOTOROLA INC·Filed 1996·Granted Sep 29, 1998·49 cites·14 claims
- 0966US5187745AEfficient codebook search for CELP vocodersMOTOROLA INC·Filed 1991·Granted Feb 16, 1993·50 cites·18 claims
- 1064US5265190ACELP vocoder with efficient adaptive codebook searchMOTOROLA INC·Filed 1991·Granted Nov 23, 1993·48 cites·14 claims
- 1161US6415029B1Echo canceler and double-talk detector for use in a communications unitMOTOROLA INC·Filed 1999·Granted Jul 2, 2002·37 cites·10 claims
- 1260US5721782APartitioned echo canceler utilizing decimation echo locationMOTOROLA INC·Filed 1996·Granted Feb 24, 1998·32 cites·8 claims
- 1357US6104726ASimultaneous transfer of voice and data information using multi-rate vocoder and bit control protocolMOTOROLA INC·Filed 1997·Granted Aug 15, 2000·40 cites·13 claims
- 1456US7065207B2Controlling attenuation during echo suppressionFREESCALE SEMICONDUCTOR INC·Filed 2003·Granted Jun 20, 2006·2 cites·36 claims
- 1554US6928409B2Speech recognition using polynomial expansion and hidden markov modelsFREESCALE SEMICONDUCTOR INC·Filed 2001·Granted Aug 9, 2005·4 cites·4 claims
- 1653US5179594AEfficient calculation of autocorrelation coefficients for CELP vocoder adaptive codebookMOTOROLA INC·Filed 1991·Granted Jan 12, 1993·28 cites·14 claims
- 1752US5173941AReduced codebook search arrangement for CELP vocodersMOTOROLA INC·Filed 1991·Granted Dec 22, 1992·26 cites·6 claims
- 1850US5812942ABalanced differential radio receiver and method of operationMOTOROLA INC·Filed 1996·Granted Sep 22, 1998·26 cites·20 claims
- 1948US5751718ASimultaneous transfer of voice and data information using multi-rate vocoder and byte control protocolMOTOROLA INC·Filed 1996·Granted May 12, 1998·17 cites·8 claims
- 2047US6707912B2Method and apparatus for setting a step size for an adaptive filter coefficient of an echo cancellerMOTOROLA INC·Filed 1999·Granted Mar 16, 2004·9 cites·19 claims
- 2147US6658112B1Voice decoder and method for detecting channel errors using spectral energy evolutionGEN DYNAMICS DECISION SYSTEMS·Filed 1999·Granted Dec 2, 2003·27 cites·20 claims
- 2239US5504802ACommunication system apparatus for transmitting and receiving data having a radio wireline interfaceMOTOROLA INC·Filed 1993·Granted Apr 2, 1996·12 cites·19 claims
Join the waitlist — get patent alerts
Get an alert when William Chunhung Yip files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →