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. 07, 1987
Filed:
Mar. 08, 1985
Emmanuel Arnould, Villarceaux, FR;
Jean-Pierre Dugre, San Clenente, FR;
Abstract
An inverse discrete cosine transform calculation processor, for processing television picture signals, comprises a processor module consisting of four successive stages. The first stage comprises a multiplier associated with a sine and cosine function value store which is connected to one of its input buses. Each of the other three stages comprises an adder/subtracter having two input buses each selectively connected to the output bus of the directly preceding stage or to the output bus of an input register of this stage also loaded from the output bus of the directly preceding stage and which features on the output bus of one of the input registers of the fourth stage an internal loopback bus which with an input bus of the module is selectively connected to the second input bus of the multiplier.