Speech coder
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 8, 2000
Grant Date -
N/A
app pub date -
Apr 16, 1997
filing date -
Apr 17, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An excitation quantizer 60 in a speech encoder includes a divider, which divides M pulses representing in combination a speech signal into groups each of L pulses, L being smaller than M. The amplitude of pulses, i.e., L pulses as each unit, is quantized, using spectral parameter. The quantization is executed on at least one quantization candidate, which is selected through distortion evaluation made through addition of the evaluation value based on an adjacent group quantization candidate output value and the evaluation value based on the pertinent group quantization value.
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Family
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