G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 19/10 (2006.01) G10L 19/00 (2006.01)
Patent
CA 2258430
A voice coding apparatus and a voice decoding apparatus are provided in order to improve the coding and decoding efficiency by eliminating useless coding levels. The apparatuses comprises an input terminal 24A for inputting the sub-frame length and for delivering it to the sub-frame dividing circuit 10 and an unit length calculating circuit 32A. The unit length calculating circuit calculates the unit length which determine a pulse interval from the sub-frame length supplied from the input terminal 24A and from a fundamental vector length supplied from the input terminal 26A, and delivers the obtained unit length to the table conversion circuit. The table designing circuit 34A designs the pulse position table based on the number of pulses supplied by the input terminal 26A and the fundamental vector length supplied by the input terminal 26A and deliver the unit length to the table circuit 36A.
Corporation Nec
G. Ronald Bell & Associates
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