Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission
Reexamination Certificate
2005-03-22
2005-03-22
To, Doris H. (Department: 2655)
Data processing: speech signal processing, linguistics, language
Speech signal processing
For storage or transmission
C704S258000
Reexamination Certificate
active
06871175
ABSTRACT:
A voice encoding method includes the steps of encoding a first frame that contains a plurality of voice data into encoded parameters, locally decoding the encoded parameters of the first frame into a second frame, performing a plurality of interpolation recovery processes that generate respective frames approximating to the first frame by using a frame or frames other than the first frame, comparing the second frame with the frames approximating to the first frame generated by the plurality of interpolation recovery processes, calculating a signal to noise ratio of each of the frames approximating to the first frame by treating the second frame as the signal, determining an index number that indicates an interpolation recovery process which provides a highest signal to noise ratio, and multiplexing and transmitting the index number with the encoded parameters.
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Fujitsu Limited Kawasaki
Katten Muchin Zavis & Rosenman
Lewis Michael A
To Doris H.
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