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:
Apr. 02, 2013
Filed:
Nov. 13, 2008
David Glen, Toronto, CA;
Jatin Naik, Brampton, CA;
Raymond Chau, Toronto, CA;
Paul Edelshteyn, Toronto, CA;
Richard Fung, Thornhill, CA;
David Glen, Toronto, CA;
Jatin Naik, Brampton, CA;
Raymond Chau, Toronto, CA;
Paul Edelshteyn, Toronto, CA;
Richard Fung, Thornhill, CA;
ATI Technologies ULC, Markham ON, CA;
Abstract
A video processing device comprises a display interface coupleable to a display device and a display controller configured to transmit a video signal via an output node of the display interface. The video signal comprises an active segment comprising video information and an inactive segment comprising synchronization information. The video processing device further comprises a display detector configured to determine whether the display device is coupled to the display interface based on a comparison of a first voltage at the output node during transmission of the inactive segment to a second voltage.