Inventor
Tadashi Yamaura
Inventor
Tokyo, JP
Overview
Patents· 31 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G10Lprimary
G10LSpeech analysis techniques or speech synthesis64%
G06FElectric digital data processing10%
G11CStatic stores5%
H04MTelephonic communication5%
G06KGraphical data reading3%
H04BTransmission3%
H04LTransmission of digital information, e.g. telegraphic communication3%
H04NPictorial communication, e.g. television3%
H04WWireless communication networks3%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h103%
PatentTitleYear
10,129,410Echo canceller device and echo cancel method20189,899,022'Multimodal information processing device'20189,852,740Method for speech coding, method for speech decoding and their apparatuses20179,716,797'Mobile wireless communication control device and mobile wireless communication system'20179,390,718'Audio signal restoration device and audio signal restoration method'20169,263,025'Method for speech coding, method for speech decoding and their apparatuses'20169,230,536'Voice synthesizer'20168,688,439'Method for speech coding, method for speech decoding and their apparatuses'20148,447,593'Method for speech coding, method for speech decoding and their apparatuses'20138,352,255'Method for speech coding, method for speech decoding and their apparatuses'20138,190,428'Method for speech coding, method for speech decoding and their apparatuses'2012RE043209'Speech coding apparatus and speech decoding apparatus'2012RE043190'Speech coding apparatus and speech decoding apparatus'20127,937,267'Method and apparatus for decoding'20117,747,432'Method and apparatus for speech decoding by evaluating a noise level based on gain information'20107,747,433'Method and apparatus for speech encoding by evaluating a noise level based on gain information'20107,747,441'Method and apparatus for speech decoding based on a parameter of the adaptive code vector'20107,742,917'Method and apparatus for speech encoding by evaluating a noise level based on pitch information'20107,454,328'Speech encoding system, and speech encoding method'20087,383,177'Method for speech coding, method for speech decoding and their apparatuses'20087,363,220'Method for speech coding, method for speech decoding and their apparatuses'20087,092,885'Sound encoding method and sound decoding method, and sound encoding device and sound decoding device'20067,047,184'Speech coding apparatus and speech decoding apparatus'20067,006,966'Speech encoding apparatus, speech encoding method, speech decoding apparatus, and speech decoding method'20066,496,796'Voice coding apparatus and voice decoding apparatus'20026,052,661'Speech encoding apparatus and speech encoding and decoding apparatus'20005,724,480'Speech coding apparatus, speech decoding apparatus, speech coding and decoding method and a phase amplitude characteristic extracting apparatus for carrying out the method'19985,175,840'Microcomputer having a PROM including data security and test circuitry'19924,905,142'Semiconductor integrated circuit device with built-in arrangement for memory testing'19904,860,087'Semiconductor device and process for producing the same'19894,777,586'Semiconductor integrated circuit device with built-in arrangement for memory testing'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–1992Patents assigned to HITACHI LTD (4)· patent assignee history
1988–1992Based in Kokubunji, JP· patent location history
1998–2018Patents assigned to MITSUBISHI ELECTRIC CORP (21)· patent assignee history
1998Based in Kamakura, JP· patent location history
2000–2018Based in Tokyo, JP· patent location history
2012–2017Patents assigned to YAMAURA TADASHI (7)· patent assignee history
2012–2014Patents assigned to RESEARCH IN MOTION LTD (4)· patent assignee history
2014–2017Patents assigned to BLACKBERRY LTD (3)· patent assignee history
2016–2017Based in Chiyoda-ku, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUBISHI ELECTRIC CORP | 21 | 1998–2018 |
| YAMAURA TADASHIself | 7 | 2012–2017 |
| HITACHI LTD | 4 | 1988–1992 |
| RESEARCH IN MOTION LTD | 4 | 2012–2014 |
| BLACKBERRY LTD | 3 | 2014–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 24 | 2000–2018 |
| Kokubunji, JP | 4 | 1988–1992 |
| Chiyoda-ku, JP | 2 | 2016–2017 |
| Kamakura, JP | 1 | 1998 |