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:
Mar. 16, 2010
Filed:
Aug. 15, 2003
Darren Neuman, Palo Alto, CA (US);
Patrick Law, Milpitas, CA (US);
Alek Movshovich, Santa Clara, CA (US);
Chuck Monahan, Mountain View, CA (US);
Darren Neuman, Palo Alto, CA (US);
Patrick Law, Milpitas, CA (US);
Alek Movshovich, Santa Clara, CA (US);
Chuck Monahan, Mountain View, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
Systems and methods for filtering to comply with copy-protection regulations set forth for HDTV signals by the Motion Picture Association of America ('MPAA') are presented. A copy-protection filter constrains the resolution of the HDTV signal when copy-protection bits are present in a video signal. The copy-protection filter may be placed in an analog data stream before the video signal is converted from a digital to an analog signal. A second copy-protection filter is optionally placed in a digital data stream. The copy-protection filter may be combined with other filters in a video encoder, or with a scaler before the input video data stream enters a compositor.