United States Patent 7,774,200
Lin August 10, 2010
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Method and apparatus for transmitting an encoded speech signal
Abstract
A method and apparatus for processing speech in a wireless communication system uses code excited linear prediction (CELP) speech encoded signals. A speech input receives samples of a speech signal and a codebook analysis block selects an index of a code from one or more codebooks. A prediction error between a predicted current sample and a current sample of the speech samples is determined. An innovation sequence is determined based on the prediction error and an index is selected based on the innovation sequence. The index is transmitted to the receiver to enable reconstruction of the speech signal at the receiver.
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Inventors: Lin; Daniel (Montville, NJ)
Assignee: InterDigital Technology Corporation (Wilmington, DE)
Appl. No.: 12/259,857
Filed: October 28, 2008
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Related U.S. Patent Documents
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Application Number Filing Date Patent Number Issue Date
11490286 Jul., 2006 7444283
10852047 Aug., 2006 7085714
10082412 Jul., 2004 6763330
09711252 May., 2002 6389388
08734356 May., 2001 6240382
08166223 Apr., 1997 5621852
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Current U.S. Class: 704/219
Current International Class: G10L 19/12 (20060101)
Field of Search: 704/219
