Inventor
Yoshiaki Asakawa
Inventor
Kawasaki, JP
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G10Lprimary
G10LSpeech analysis techniques or speech synthesis58%
H03MCoding16%
G06TImage data processing or generation, in general11%
H04BTransmission5%
H04LTransmission of digital information, e.g. telegraphic communication5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
PatentTitleYear
5,983,172'Method for coding/decoding, coding/decoding device, and videoconferencing apparatus using such device'19995,956,686'Audio signal coding/decoding method'19995,566,191'Soft decision maximum likelihood decoding method with adaptive metric'19965,384,891'Vector quantizing apparatus and speech analysis-synthesis system using the apparatus'19955,142,582'Speech coding and decoding system with background sound reproducing function'19925,119,424'Speech coding system using excitation pulse train'19925,077,798'Method and system for voice coding based on vector quantization'19915,060,268'Speech coding system and method'19914,985,923'High efficiency voice coding system'19914,975,957'Character voice communication system'19904,776,015'Speech analysis-synthesis apparatus and method'19884,718,095'Speech recognition method'19884,528,688'Continuous speech recognition method'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985–1999Patents assigned to HITACHI LTD (13)· patent assignee history
1985–1999Based in Kawasaki, JP· patent location history
1996Patents assigned to HITACHI ELECTRONICS (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 13 | 1985–1999 |
| HITACHI ELECTRONICS | 1 | 1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kawasaki, JP | 13 | 1985–1999 |