IP Library › Granted Patent US 6,721,712
Granted Patent Utility
US 6,721,712 · Confirmation No. 2776

CONVERSION SCHEME FOR USE BETWEEN DTX AND NON-DTX SPEECH CODING SYSTEMS

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2007-05-11 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2007-05-10 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2004-02-17 IFEE Issue Fee Payment (PTO-85B) 4 View
2002-01-24 TRNA Transmittal of New Application 2 View
2002-01-24 SPEC Specification 28 View
2002-01-24 CLM Claims 5 View
2002-01-24 ABST Abstract 1 View
2002-01-24 DRW Drawings-only black and white line drawings 5 View
2002-01-24 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,721,712
App. No.
10/057,250
Filed
2002-01-24
Granted
2004-04-13
Art Unit
2654
PTA
-2 days