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:
Oct. 09, 2001
Filed:
Apr. 01, 1999
Marinko Karanovic, Don Mills, CA;
ATI International Srl, Christ Church, KN;
Abstract
A method and apparatus for performing filtering operations on video data using a limited amount of memory is accomplished by multiplying a first coefficient value and a first input value to produce a product. A random number is generated and added to the product to produce a dithered product. The dithered product is added to an accumulated value to produce a partial sum. A truncated version of the partial sum is stored in a buffer as the new accumulated value. The multiply and add operations are repeated for a number of coefficient values and input values such that the accumulated value includes contributions from a number of different input values. The resulting accumulated value is provided as an output.