Inventor
Eric I-Chao Chang
Inventor
Beijing, CN
Overview
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing20%
G10LSpeech analysis techniques or speech synthesis12%
H04MTelephonic communication10%
H04LTransmission of digital information, e.g. telegraphic communication8%
G06KGraphical data reading6%
G06TImage data processing or generation, in general6%
G06VImage or video recognition or understanding6%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes4%
G08GTraffic control systems4%
H04WWireless communication networks4%
PatentTitleYear
11,117,436Vehicle suspension system202111,084,466Snow and ice remover for vehicle roofs202110,545,247Computerized traffic speed measurement using sparse data202010,444,062Measuring and diagnosing noise in an urban environment20199,317,781'Multiple cluster instance learning for image classification'20169,224,071'Unsupervised object class discovery via bottom up multiple class learning'20159,001,118'Avatar construction using depth camera'20158,943,420'Augmenting a field of view'20158,763,150'Correlating private affinities'20148,655,667'Context based online advertising'20148,490,157'Authentication—circles of trust'20138,380,719'Semantic content searching'20138,185,155'Smart interface system for mobile communications devices'20128,165,633'Passive interface and software configuration for portable devices'20127,912,503'Smart interface system for mobile communications devices'20117,873,655'Automated mobile communications'20117,865,924'Providing input and output for a mobile device'20117,751,971'Location mapping for key-point based services'20107,440,900'Voice message processing system and method'20087,401,019'Phonetic fragment search in speech data'20087,386,323'Systems and methods for operating a computing device having image capture capabilities'20087,039,582'Speech recognition using dual-pass pitch tracking'20067,035,792'Speech recognition using dual-pass pitch tracking'20066,917,912'Method and apparatus for tracking pitch in audio analysis'20056,456,975'Automated centralized updating of speech recognition systems'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2015Patents assigned to MICROSOFT CORP (19)· patent assignee history
2002–2020Based in Beijing, CN· patent location history
2011Based in Redmond, WA, US· patent location history
2012–2015Patents assigned to CHANG ERIC (3)· patent assignee history
2012Patents assigned to DEHGHAN DAVID (2)· patent assignee history
2013–2015Patents assigned to CHANG ERIC I-CHAO (4)· patent assignee history
2014–2015Based in Qinpu District, CN· patent location history
2015–2020Patents assigned to MICROSOFT TECHNOLOGY LICENSING LLC (5)· patent assignee history
2021Based in Buford, GA, US· patent location history
2021Based in East Brunswick, NJ, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MICROSOFT CORP | 19 | 2002–2015 |
| MICROSOFT TECHNOLOGY LICENSING LLC | 5 | 2015–2020 |
| CHANG ERIC I-CHAOself | 4 | 2013–2015 |
| CHANG ERICself | 3 | 2012–2015 |
| DEHGHAN DAVID | 2 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Beijing, CN | 20 | 2002–2020 |
| Qinpu District, CN | 2 | 2014–2015 |
| Buford, Georgia, US | 1 | 2021 |
| East Brunswick, New Jersey, US | 1 | 2021 |
| Redmond, Washington, US | 1 | 2011 |