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:
Jun. 30, 2009
Filed:
Dec. 18, 2007
Alexander G. Macinnis, Los Altos, CA (US);
Chengfuh Jeffrey Tang, Saratoga, CA (US);
Xiaodong Xie, San Jose, CA (US);
James T. Patterson, Saratoga, CA (US);
Greg A. Kranawetter, San Jose, CA (US);
Alexander G. MacInnis, Los Altos, CA (US);
Chengfuh Jeffrey Tang, Saratoga, CA (US);
Xiaodong Xie, San Jose, CA (US);
James T. Patterson, Saratoga, CA (US);
Greg A. Kranawetter, San Jose, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
A graphics integrated circuit chip is used in a set-top box for controlling a television display. The graphics chip processes analog video input, digital video input, and graphics input. The chip includes a single polyphase filter that preferably provides both anti-flutter filtering and scaling of graphics. Anti-flutter filtering may help reduce display flicker due to the interlaced nature of television displays. The scaling of graphics may be used to convert the normally square pixel aspect ratio of graphics to the normally rectangular pixel aspect ratio of video.