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. 12, 2000
Filed:
Apr. 01, 1997
Jeffery Dean Carr, Vestal, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An MPEG-2 compliant digital video encoder system having a refinement processor for reconstructive processing for I-picture and P-picture encoding. The refinement processor includes a frame difference unit which has a predicted error array (PE array). The predicted error array comprises a shared-use array for storing both luminance data and chrominance data of a macroblock of data. The predicted error array also comprises a dual-port structure and array read control logic which allows simultaneous reading and writing of data to the array. Address selector logic controls addressing of the PE array such that writing of luminance data and chrominance data to the PE array and reading of luminance data and chrominance data from the array remains synchronous.