CRYSTAL SEMICONDUCTOR CORPORATION
Patent Owner
Stats
- 24 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Oct 04, 2005 most recent publication
Details
- 24 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 1,104 Total Citation Count
- Jan 17, 1995 Earliest Filing
- 1 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
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Recent Publications
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Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
6952621 Single-chip audio circuits, methods, and systems using the sameNov 20, 00Oct 04, 05[H04B, G06F]
6356872 Method and apparatus for storing digital audio and playback thereofSep 25, 96Mar 12, 02[G10L]
6282176 Full-duplex speakerphone circuit including a supplementary echo suppressorMar 20, 98Aug 28, 01[H04B]
6259957 Circuits and methods for implementing audio Codecs and systems using the sameApr 04, 97Jul 10, 01[H04B, G06F]
6212273 Full-duplex speakerphone circuit including a control interfaceMar 20, 98Apr 03, 01[H04M, H04B]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
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