Inventor · disambiguated record
Hisao Chang
Also filed as: CHANG HISAO · CHANG HISAO M
78 granted patents·16 pending applications·1,722 citations·filing 1987–2023
99Inventor score
Top patents by PatentIndex Score
94 records- 0199US7460652B2VoiceXML and rule engine based switchboard for interactive voice response (IVR) servicesAT & T IP I LP·Filed 2003·Granted Dec 2, 2008·294 cites·17 claims
- 0297US7092370B2Method and system for wireless voice channel/data channel integrationROAMWARE INC·Filed 2001·Granted Aug 15, 2006·594 cites·30 claims
- 0395US7222072B2Bio-phonetic multi-phrase speaker identity verificationSBC PROPERTIES LP·Filed 2003·Granted May 22, 2007·121 cites·28 claims
- 0495US6792096B2Directory assistance dialog with configuration switches to switch from automated speech recognition to operator-assisted dialogSBC TECHN RES INC·Filed 2002·Granted Sep 14, 2004·91 cites·14 claims
- 0595US6714631B1Method and system for an automated departure strategySBC PROPERTIES LP·Filed 2002·Granted Mar 30, 2004·108 cites·29 claims
- 0694US8607276B2Systems and methods to select a keyword of a voice search request of an electronic program guideCHANG HISAO·Filed 2011·Granted Dec 10, 2013·29 cites·20 claims
- 0793US9019868B2Methods and apparatus to manage conference callsAT & T IP I LP·Filed 2013·Granted Apr 28, 2015·17 cites·20 claims
- 0893US8229748B2Methods and apparatus to present a video program to a visually impaired personCHANG HISAO M·Filed 2008·Granted Jul 24, 2012·16 cites·38 claims
- 0990US9461957B2Method and apparatus for social network communication over a media networkAT & T IP I LP·Filed 2015·Granted Oct 4, 2016·4 cites·20 claims
- 1090US8090086B2VoiceXML and rule engine based switchboard for interactive voice response (IVR) servicesCHANG HISAO M·Filed 2008·Granted Jan 3, 2012·15 cites·20 claims
- 1189US9100669B2Method and apparatus for associating micro-blogs with media programsFENG JUNLAN·Filed 2011·Granted Aug 4, 2015·8 cites·15 claims
- 1289US7657005B2System and method for identifying telephone callersAT & T IP I LP·Filed 2004·Granted Feb 2, 2010·58 cites·21 claims
- 1387US8744860B2Apparatus and method for providing messages in a social networkCHANG HISAO·Filed 2010·Granted Jun 3, 2014·8 cites·20 claims
- 1487US8442835B2Methods, systems, and products for measuring healthJI LUSHENG·Filed 2010·Granted May 14, 2013·10 cites·20 claims
- 1587US7356475B2System and method for providing access to an interactive service offeringSBC KNOWLEDGE VENTURES LP·Filed 2004·Granted Apr 8, 2008·39 cites·21 claims
- 1687US4820059ASpeech processing apparatus and methodsCENTRAL INST DEAF·Filed 1987·Granted Apr 11, 1989·115 cites·18 claims
- 1786US11191432B2Wearable health monitoring systemAT & T IP I LP·Filed 2019·Granted Dec 7, 2021·4 cites·20 claims
- 1886US9734542B2Methods, systems, and products for measuring healthAT & T IP I LP·Filed 2013·Granted Aug 15, 2017·7 cites·13 claims
- 1986US8358749B2System and method to search a media content database based on voice input dataAT & T IP I LP·Filed 2009·Granted Jan 22, 2013·13 cites·20 claims
- 2084US7912201B2Directory assistance dialog with configuration switches to switch from automated speech recognition to operator-assisted dialogAT & T IP I LP·Filed 2006·Granted Mar 22, 2011·11 cites·10 claims
- 2183US9357921B2Wearable health monitoring systemCHANG HISAO M·Filed 2009·Granted Jun 7, 2016·23 cites·20 claims
- 2283US9135809B2Voice enabled remote control for a set-top boxCHANG HISAO M·Filed 2008·Granted Sep 15, 2015·11 cites·19 claims
- 2383US8199888B2System and method for automatically transcribing voicemailCHANG HISAO M·Filed 2008·Granted Jun 12, 2012·6 cites·20 claims
- 2482US8555330B2System for managing media servicesCHANG HISAO·Filed 2007·Granted Oct 8, 2013·5 cites·24 claims
- 2581US7443960B2Method and system for an automated departure strategyAT & T IP I LP·Filed 2006·Granted Oct 28, 2008·5 cites·13 claims
- 2680US8825493B2Method and apparatus for social network communication over a media networkCHANG HISAO·Filed 2011·Granted Sep 2, 2014·2 cites·20 claims
- 2780US7567901B2Bio-phonetic multi-phrase speaker identity verificationAT & T INTELLECTUAL PROPERTY 1·Filed 2007·Granted Jul 28, 2009·8 cites·20 claims
- 2879US8411835B2Methods and apparatus to manage conference callsGORTI SREENIVASA·Filed 2008·Granted Apr 2, 2013·5 cites·27 claims
- 2978US10314489B2Wearable health monitoring systemAT & T IP I LP·Filed 2016·Granted Jun 11, 2019·2 cites·20 claims
- 3078US7146383B2Method and system for an automated disambiguationSBC PROPERTIES LP·Filed 2002·Granted Dec 5, 2006·26 cites·42 claims
- 3177US7873029B2System and method of providing multimedia communication servicesAT & T IP I LP·Filed 2006·Granted Jan 18, 2011·7 cites·30 claims
- 3277US7050560B2Directory assistance dialog with configuration switches to switch from automated speech recognition to operator-assisted dialogSBC TECHN RES INC·Filed 2004·Granted May 23, 2006·13 cites·20 claims
- 3372US9338518B2System for managing media servicesAT & T IP I LP·Filed 2014·Granted May 10, 2016·1 cites·20 claims
- 3472US9246868B2Method and apparatus for social network communication over a media networkAT & T IP I LP·Filed 2014·Granted Jan 26, 2016·0 cites·20 claims
- 3572US7415106B2Network-based voice activated auto-attendant service with B2B connectorsSBC KNOWLEDGE VENTURES LP·Filed 2004·Granted Aug 19, 2008·10 cites·16 claims
- 3671US7136476B2Directory assistance dialog with configuration switches to switch from automated speech recognition to operator-assisted dialogSBC TECHN RES INC·Filed 2005·Granted Nov 14, 2006·2 cites·19 claims
- 3770US12437539B2System and method for identifying activity in an area using a video camera and an audio sensorHONEYWELL INT INC·Filed 2023·Granted Oct 7, 2025·0 cites·19 claims
- 3870US9263047B2Apparatus and method for providing messages in a social networkAT & T IP I LP·Filed 2014·Granted Feb 16, 2016·1 cites·20 claims
- 3970US8768703B2Methods and apparatus to present a video program to a visually impaired personCHANG HISAO M·Filed 2012·Granted Jul 1, 2014·3 cites·23 claims
- 4070US7881451B2Automated directory assistance system for a hybrid TDM/VoIP networkAT & T IP I LP·Filed 2004·Granted Feb 1, 2011·10 cites·20 claims
- 4170US7062018B2Method and system for an automated departure strategySBC PROPERTIES LP·Filed 2004·Granted Jun 13, 2006·12 cites·25 claims
- 4269US10032118B2Method and apparatus for associating micro-blogs with media programsAT & T IP I LP·Filed 2016·Granted Jul 24, 2018·1 cites·20 claims
- 4369US9852614B2Voice enabled remote control for a set-top boxNUANCE COMMUNICATIONS INC·Filed 2015·Granted Dec 26, 2017·1 cites·20 claims
- 4469US2018270184A1Method and Apparatus for Social Network Communication Over a Media NetworkNUANCE COMMUNICATIONS INC·Filed 2018·Application pending·0 cites
- 4568US11804240B2Methods and systems for human activity trackingHONEYWELL INT INC·Filed 2022·Granted Oct 31, 2023·0 cites·20 claims
- 4668US9307275B2Method and apparatus for associating micro-blogs with media programsAT & T IP I LP·Filed 2015·Granted Apr 5, 2016·1 cites·20 claims
- 4767US11620827B2System and method for identifying activity in an area using a video camera and an audio sensorHONEYWELL INT INC·Filed 2021·Granted Apr 4, 2023·0 cites·20 claims
- 4866US9979690B2Method and apparatus for social network communication over a media networkNUANCE COMMUNICATIONS INC·Filed 2016·Granted May 22, 2018·0 cites·20 claims
- 4966US9300810B2Methods and apparatus to manage conference callsAT & T IP I LP·Filed 2015·Granted Mar 29, 2016·1 cites·20 claims
- 5066US8600759B2Methods, systems, and products for measuring healthAT & T IP I LP·Filed 2013·Granted Dec 3, 2013·0 cites·20 claims
Showing the top 50 of 94 patent records by PatentIndex Score.
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