Assignee
DIGITAL SOUND CORP
US·6 granted patents·328 citations·filing 1984–1997
Top patents by PatentIndex Score
6 records- 0191US4689760ADigital tone decoder and method of decoding tones using linear prediction codingDIGITAL SOUND CORP·Filed 1984·Granted Aug 25, 1987·74 cites·40 claims
- 0284US6088428AVoice controlled messaging system and processing methodDIGITAL SOUND CORP·Filed 1997·Granted Jul 11, 2000·109 cites·49 claims
- 0384US5267322ADigital automatic gain control with lookahead, adaptive noise floor sensing, and decay boost initializationDIGITAL SOUND CORP·Filed 1991·Granted Nov 30, 1993·54 cites·25 claims
- 0472US5400394AAdaptive echo canceller for voice messaging systemDIGITAL SOUND CORP·Filed 1994·Granted Mar 21, 1995·48 cites·15 claims
- 0557US5163050AConfigurable parameter dtmf detectorDIGITAL SOUND CORP·Filed 1991·Granted Nov 10, 1992·27 cites·19 claims
- 0651US5805673AMethod and apparatus for reliable access to audio and facsimile message storage and retrieval systemDIGITAL SOUND CORP·Filed 1995·Granted Sep 8, 1998·16 cites·29 claims
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