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.

Date of Patent:
Mar. 01, 2022

Filed:

Oct. 31, 2018
Applicant:

Ati Technologies Ulc, Markham, CA;

Inventors:

Wei Liang, Markham, CA;

Jun Lei, Markham, CA;

Patrick Pak Kin Fok, Markham, CA;

Panagiotis Vagiakos, Markham, CA;

Aric Cyr, Markham, CA;

Min Zhang, Markham, CA;

Assignee:

ATI Technologies ULC, Markham, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/14 (2006.01); G09G 5/12 (2006.01);
U.S. Cl.
CPC ...
G06F 3/1423 (2013.01); G06F 3/1454 (2013.01); G09G 5/12 (2013.01);
Abstract

Described herein are techniques for removing control of a display from an operating system. The disclosed techniques decouple operation of the physical display device from control of the operating system so that the display device may be powered down while not needed during streaming. The device driver for the graphics card, into which a display device cable is plugged, simulates operation of the display but allows the display to be powered down. Simulating the display involves properly responding to queries or commands from the operating system, and generating the signals that would be expected from the display device by the operating system. While simulated in this manner, whether the display device is actually powered down does not matter to the operation of an application being streamed, because the operating system still 'believes' the display device is powered on. Thus application streaming is not interrupted by powering down the display device.


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