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:
Jul. 31, 1984
Filed:
Sep. 22, 1982
Dietrich Meyer-Ebrecht, Hamburg, DE;
Jens H Christiansen, Hamburg, DE;
U.S. Philips Corporation, New York, NY (US);
Abstract
In the conventional transformation coding of pictures the value ranges of the coefficients then produced are extended during the performance of the individual arithmetical steps. As a result thereof these coefficients have a great redundancy. According to the invention, the arithmetical steps which are formed by the basic transformation of two values are performed so that as a result of each arithmetical step only the original word length is obtained, because in each arithmetical step a portion of the value range of the result is mapped onto a different area. An example for the technical implementation of such a mapping on modified coefficients and the retransformation of these modified coefficients is described.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile