The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 2001
Filed:
Jun. 07, 1999
Applicant:
Inventor:
Félix Henry, Rennes, FR;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M 7/34 ;
U.S. Cl.
CPC ...
H03M 7/34 ;
Abstract
A method and apparatus for decoding a quantized digital signal. Quantization symbols are read and an experimental distribution of the quantization symbols is constructed. An experimental distribution is approximated by means of a continuous distribution model which passes through values of the experimental distribution. A dequantization vector, for at least one quantization cell, equal to the center of mass of the points of the quantization cell weighted by the values of the restricted continuous distribution is calculated. The dequantization vectors associated respectively with the quantization symbols are then stored for use in decoding.