Invention Grant
- Patent Title: Method and apparatus for compensating for variable refresh rate display range limitations
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Application No.: US14661868Application Date: 2015-03-18
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Publication No.: US09984664B2Publication Date: 2018-05-29
- Inventor: David I. J. Glen , Syed A. Hussain
- Applicant: ATI Technologies ULC
- Applicant Address: CA Markham, Ontario
- Assignee: ATI Technologies ULC
- Current Assignee: ATI Technologies ULC
- Current Assignee Address: CA Markham, Ontario
- Agency: Faegre Baker Daniels LLP
- Main IPC: G09G5/18
- IPC: G09G5/18 ; G09G5/00 ; G09G5/395

Abstract:
Briefly, methods and apparatus provide image content to, and display image content on, displays with a variable refresh rate that reduce frame delays and avoid display image flickering problems. In one example, the methods and apparatus are operative to vary a display's refresh rate by varying a current frame's vertical blanking period by re-providing the current frame for display prior to providing a new frame for display. In this fashion, the displaying of a new frame may be advanced by assuring that a new frame can be provided for display as soon as it has been rendered and available for display. In addition, by re-providing the current frame for display prior to providing a new frame for display, new frames may be provided for display at rates within a safe rate range such that display image flickering issues are avoided or reduced.
Public/Granted literature
- US20160275916A1 METHOD AND APPARATUS FOR COMPENSATING FOR VARIABLE REFRESH RATE DISPLAY RANGE LIMITATIONS Public/Granted day:2016-09-22
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