Inventor · disambiguated record
Chienchung Chang
Also filed as: CHANG CHIENCHUNG
27 granted patents·10 pending applications·1,279 citations·filing 1994–2016
97Inventor score
Top patents by PatentIndex Score
37 records- 0196US5956683ADistributed voice recognition systemQUALCOMM INC·Filed 1996·Granted Sep 21, 1999·324 cites·30 claims
- 0290US7873224B2Enhanced image/video quality through artifact evaluationQUALCOMM INC·Filed 2006·Granted Jan 18, 2011·14 cites·40 claims
- 0389US6449496B1Voice recognition user interface for telephone handsetsQUALCOMM INC·Filed 1999·Granted Sep 10, 2002·183 cites·9 claims
- 0488US8441441B2User interface for mobile devicesTSAI MING-CHANG·Filed 2009·Granted May 14, 2013·19 cites·52 claims
- 0584US6330247B1Communication protocol between a communication device and an external accessoryQUALCOMM INC·Filed 1999·Granted Dec 11, 2001·135 cites·20 claims
- 0682US7940844B2Video encoding and decoding techniquesQUALCOMM INC·Filed 2003·Granted May 10, 2011·20 cites·26 claims
- 0782US6324509B1Method and apparatus for accurate endpointing of speech in the presence of noiseQUALCOMM INC·Filed 1999·Granted Nov 27, 2001·100 cites·13 claims
- 0880US7024359B2Distributed voice recognition system using acoustic feature vector modificationQUALCOMM INC·Filed 2001·Granted Apr 4, 2006·41 cites·8 claims
- 0979US7359559B2Video encoding techniquesQUALCOMM INC·Filed 2006·Granted Apr 15, 2008·5 cites·41 claims
- 1079US6836758B2System and method for hybrid voice recognitionQUALCOMM INC·Filed 2001·Granted Dec 28, 2004·31 cites·10 claims
- 1179US6411926B1Distributed voice recognition systemQUALCOMM INC·Filed 1999·Granted Jun 25, 2002·85 cites·14 claims
- 1276US6594628B1Distributed voice recognition systemQUALCOMM INC·Filed 1997·Granted Jul 15, 2003·79 cites·7 claims
- 1374US7817717B2Motion estimation techniques for video encodingQUALCOMM INC·Filed 2002·Granted Oct 19, 2010·14 cites·49 claims
- 1472US6941265B2Voice recognition system method and apparatusQUALCOMM INC·Filed 2001·Granted Sep 6, 2005·23 cites·23 claims
- 1572US5727123ABlock normalization processorQUALCOMM INC·Filed 1995·Granted Mar 10, 1998·54 cites·5 claims
- 1671US5784532AApplication specific integrated circuit (ASIC) for performing rapid speech compression in a mobile telephone systemQUALCOMM INC·Filed 1994·Granted Jul 21, 1998·47 cites·21 claims
- 1770US7039246B2Video encoding techniquesQUALCOMM INC·Filed 2002·Granted May 2, 2006·8 cites·9 claims
- 1867US7515634B2Computationally constrained video encodingQUALCOMM INC·Filed 2002·Granted Apr 7, 2009·7 cites·62 claims
- 1965US10474145B2System and method of depth sensor activationQUALCOMM INC·Filed 2016·Granted Nov 12, 2019·1 cites·30 claims
- 2063US7328159B2Interactive speech recognition apparatus and method with conditioned voice promptsQUALCOMM INC·Filed 2002·Granted Feb 5, 2008·10 cites·21 claims
- 2159US9049423B2Zero disparity plane for feedback-based three-dimensional videoBI NING·Filed 2010·Granted Jun 2, 2015·2 cites·40 claims
- 2256US8159548B2Modular architecture having reusable front end for processing digital video dataCHANG CHIENCHUNG·Filed 2003·Granted Apr 17, 2012·3 cites·35 claims
- 2356US6226607B1Method and apparatus for eighth-rate random number generation for speech codersQUALCOMM INC·Filed 1999·Granted May 1, 2001·29 cites·14 claims
- 2454US6278972B1System and method for segmentation and recognition of speech signalsQUALCOMM INC·Filed 1999·Granted Aug 21, 2001·31 cites·25 claims
- 2552US8804000B2Modular architecture having reusable front end for processing digital video dataCHANG CHIENCHUNG·Filed 2012·Granted Aug 12, 2014·0 cites·56 claims
- 2650US2011170611A1Video encoding and decoding techniquesQUALCOMM INC·Filed 2011·Application pending·0 cites
- 2746US8391622B2Enhanced image/video quality through artifact evaluationJALIL SUHAIL·Filed 2010·Granted Mar 5, 2013·0 cites·20 claims
- 2845US2003133565A1Echo cancellation system method and apparatusFiled 2002·Application pending·0 cites
- 2944US2004008779A1Techniques for video encoding and decodingFiled 2003·Application pending·0 cites
- 3043US2003154080A1Method and apparatus for modification of audio input to a data processing systemFiled 2002·Application pending·0 cites
- 3143US2001007974A1Method and apparatus for eighth-rate random number generation for speech codersFiled 2001·Application pending·0 cites
- 3242US2002178004A1Method and apparatus for voice recognitionFiled 2001·Application pending·0 cites
- 3342US2002143540A1Voice recognition system using implicit speaker adaptationFiled 2001·Application pending·0 cites
- 3442US2002077814A1Voice recognition system method and apparatusFiled 2000·Application pending·0 cites
- 3541US6574596B2Voice recognition rejection schemeQUALCOMM INC·Filed 1999·Granted Jun 3, 2003·14 cites·40 claims
- 3639US2018121713A1Systems and methods for verifying a faceQUALCOMM INC·Filed 2016·Application pending·0 cites
- 3730US2002034971A1Data allocation for multiple applications on a microprocessor or dspFiled 1999·Application pending·0 cites
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