Signal compression using index mapping technique for the sharing

Details Signal compression using index mapping technique for the sharing Signal compression using index mapping technique for the sharing

1996-08-23

1999-07-06

Von Buhr, Maria N.

Data processing: database and file management or data structures

Database design

Data structure types

382232, 382253, 704222, 39520077, G06F 1730, G06F 500

Patent

active

059208538

ABSTRACT:
A signal compression system includes a coder and a decoder. The coder includes an extract unit for extracting an input feature vector from an input signal, a coder memory unit for storing a predesigned vector quantization (VQ) table for the coder such that the coder memory unit uses a set of primary indices to address entries within the pre-designed VQ table, a coder mapping unit for mapping indices from a set of secondary indices to the first set of indices, and a search unit for searching for one index out of the set of secondary indices, wherein the index from the set of secondary indices corresponds to an entry in the coder memory unit, and the entry best represents the input feature vector according to some predetermined criteria. On the decoder side, the decoder includes a decoder memory unit for storing the same pre-designed VQ table and set of primary indices as the coder memory unit, a decoder mapping unit, and a retrieval unit, wherein the entry indicated by the index best represents the input feature vector.

REFERENCES:
patent: 4963030 (1990-10-01), Makur
patent: 4969192 (1990-11-01), Chen et al.
patent: 5253053 (1993-10-01), Chu et al.
patent: 5300931 (1994-04-01), Lindsay et al.
patent: 5420639 (1995-05-01), Perkins
patent: 5506801 (1996-04-01), Tawel
patent: 5524170 (1996-06-01), Matsuo et al.
patent: 5592227 (1997-01-01), Feng
patent: 5619717 (1997-04-01), Staats

Affiliated with

Also associated with

Rating

Signal compression using index mapping technique for the sharing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Signal compression using index mapping technique for the sharing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal compression using index mapping technique for the sharing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-907518