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:
Sep. 26, 1995
Filed:
Jun. 10, 1994
Paul E Cohen, San Jose, CA (US);
NEC Electronics, Inc., Mountain View, CA (US);
Abstract
A discrete cosine transform engine is disclosed. The engine receives an input matrix of data and provides a transformed matrix of data, the input matrix and the output matrix each having a plurality of row locations and a plurality of column locations. The engine includes a plurality of input accumulators and a plurality of output accumulators. The plurality of input accumulators accumulate data from the input matrix of data in parallel to provide a plurality of transform coefficient outputs. A digital signal processor receives the plurality of transform coefficients, multiplies the transform coefficients by a plurality of transform constants and provides a plurality of transform products. Each output accumulator receives the transform products and accumulates the products to provide the transformed matrix of data.