Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission
Reexamination Certificate
2005-09-21
2010-12-28
Armstrong, Angela A (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
For storage or transmission
C704S221000
Reexamination Certificate
active
07860710
ABSTRACT:
An electronic circuit (1100) including a processor circuit (1110) and a storage circuit establishing a speech coder (1170) for execution by said processor (1110), the speech coder (1170) for approximating speech by pulses having pulse positions selectable from a codebook (550), the speech coder (1170) operable to obtain (1310) a set of estimated pulse positions having a first number of pulse tracks of the estimated pulse positions, use (1320) a cost function (epsilon tilde {tilde over (ε)}) relating to approximation to speech to find a first subset including a second number of one or more pulse tracks fewer in number than the first number wherein the first subset of pulse tracks contributed a lower contribution to the cost function relative to a second subset of pulse tracks, and control (1330) a subsequent pulse position search beginning with the lower-contributing subset of pulse tracks to yield pulse positions to provide a value of the cost function representing a better approximation to speech. Other forms of the invention involve systems, circuits, devices, processes and processes of operation, as disclosed and claimed.
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Deshpande Murali M.
Goudar Chanaveeragouda V.
Rabha Pankaj
Armstrong Angela A
Brady III Wade J.
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
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