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, 2012
Filed:
Nov. 13, 2008
Jatin Naik, Brampton, CA;
David Glen, Toronto, CA;
Paul Edelshteyn, Toronto, CA;
Vadim Bishtein, Ajax, CA;
Charles Leung, North York, CA;
Jatin Naik, Brampton, CA;
David Glen, Toronto, CA;
Paul Edelshteyn, Toronto, CA;
Vadim Bishtein, Ajax, CA;
Charles Leung, North York, CA;
ATI Technologies ULC, Markham, ON, CA;
Abstract
A method comprises disabling a video digital-to-analog converter (DAC) that is configured to provide an output current representative of a video signal to an output node of an accessory connector in an enabled state. The accessory connector is coupleable to an accessory device. The method further comprises determining, while the video DAC is disabled, whether the accessory connector is coupled to the accessory device based on a voltage at the output node while the output node is connected to the first voltage reference via a resistor having a resistance.