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:
Feb. 18, 2003
Filed:
Jun. 15, 1999
Applicant:
Inventors:
Eric Majani, Rennes, FR;
Patrice Onno, Rennes, FR;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/710 ; G06F 1/714 ;
U.S. Cl.
CPC ...
G06F 1/710 ; G06F 1/714 ;
Abstract
A digital signal transformation method, in which the original samples (x ; y ) of the digital signal are transformed into output samples (y , x ). Any output sample being calculated by a function of original samples, and/or of intermediate samples (t , v , t , v ), and/or of output samples is characterized in that each function is broken down into elementary operations, and the elementary operations of all the functions are ordered so as to minimize the number of samples that are simultaneously necessary. The invention makes it possible to minimize the memory space necessary to calculate the transformation.