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. 10, 2012
Filed:
Mar. 31, 2008
Jeongnam Youn, San Jose, CA (US);
Jeongnam Youn, San Jose, CA (US);
Sony Corporation, Tokyo, JP;
Sony Electronics Inc., Park Ridge, NJ (US);
Abstract
Pixel data is compressed using a combination of variable and fixed quantization for luminance data. The luminance is compared to the result of variable quantization and to the result of the fixed quantization to compute a variable noise and a fixed noise. The result of the variable quantization is selected if the variable noise is less than the fixed noise, otherwise the fixed quantization result is selected if the fixed noise is less than the variable noise. The selected result is transferred to a frame memory. In another aspect of the invention, an intra mode coding decision is forced if the noise corresponding to the selected result exceeds a threshold.