Method and apparatus using multi-path multi-stage vector quantiz

Details Method and apparatus using multi-path multi-stage vector quantiz Method and apparatus using multi-path multi-stage vector quantiz

1998-09-23

2000-11-14

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704230, G10L 1900

Patent

active

061482838

ABSTRACT:
A multi-path, split, multi-stage vector quantizer (MPSMS-VQ) having multiple paths between stages which result in a robust and flexible quanitizer. By varying parameters, the MPSMS-VQ meets design requirements, such as: (1) the number of bits used to represent the input vector (i.e., uses the same or less total bits than the given number of bits, N); (2) the dimension of the input vector, the performance (distortion as noted by WMSE or SD); (3) complexity (i.e., total complexity can be adjusted to be within a complexity constraint); and (4) memory usage (i.e., total number of words M in the codebook memory can be adjusted to be equal to, or less than, the memory constraint M.sub.d). Therefore, the disclosed method and apparatus works well in many conditions (i.e., offers a very robust performance across a wide range of inputs).

REFERENCES:
patent: 5243686 (1993-09-01), Tokuda et al.
patent: 5398069 (1995-03-01), Huang et al.
patent: 5408234 (1995-04-01), Chu
patent: 5535305 (1996-07-01), Acero et al.
patent: 5651026 (1997-07-01), Lin et al.
patent: 5737484 (1998-04-01), Ozawa
patent: 5774839 (1998-06-01), Shlomot
patent: 5787390 (1998-07-01), Quinquis et al.
patent: 5822723 (1998-10-01), Kim et al.
patent: 5859932 (1999-01-01), Etoh
patent: 5890110 (1999-03-01), Gersho et al.
patent: 5966688 (1999-10-01), Nandkumar et al.
Law et al., "Split-Dimension Vector Quantization of Parcor Coefficients for Low Bit Rate Speech Coding," IEEE Transactions on Speech and Audio Processing, vol. 2, No. 3, pp. 443 to 446, Jul. 1994.
Pan et al., "Vector Quantization-Lattice Vector Quantization of Speech LPC Coefficients," IEEE International Conference on Acoustics, Speech and Signal Processing, pp. I/513 to I/516, Apr. 1994.

Affiliated with

Also associated with

Rating

Method and apparatus using multi-path multi-stage vector quantiz does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus using multi-path multi-stage vector quantiz, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus using multi-path multi-stage vector quantiz will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2074930