| 摘要 |
PCT No. PCT/DE94/00436 Sec. 371 Date Nov. 7, 1996 Sec. 102(e) Date Nov. 7, 1996 PCT Filed Apr. 20, 1994 PCT Pub. No. WO94/27285 PCT Pub. Date Nov. 24, 1994The vector encoding method, particularly for voice signals, includes storing autocorrelation coefficients in one codebook and performing a logic operation on the autocorrelation coefficients with an autocorrelation function for the pulse response of an excitation filter to give the energy of the filtered excitation signal. For additional data reduction only those values having three autocorrelation coefficients other than the value 0 are entered in the codebook. The combination patterns which can be formed from these coefficients occur with the same frequency in the codebook. Because of these features, a transmission of encoded data which is very robust with respect to faults is possible with reduced processing and storage effort. |
