Techniques for controlling frame refresh

Patent metadata

Field	Value
Publication number	US-8933951-B2
Application number	US-201113071774-A
Country	US
Kind code	B2
Filing date	Mar 25, 2011
Priority date	Mar 31, 2010
Publication date	Jan 13, 2015
Grant date	Jan 13, 2015

Abstract

Techniques are described that track the lines and pixels in a frame buffer in the host system that are being modified and transmit these modified scan lines and modified pixel locations to the self refresh display instead of entire contents of the frame buffer. The graphics adapter informs the self refresh display of the modified scan lines or pixel information and then sends the pixel data over the communications channel to the display. Custom codes can be used to identify and transmit modified scan lines and pixels to the self refresh display logic.

First claim

What is claimed is:

1. A computer-implemented method comprising:
determining whether a request to render a rectangle comprises a request to render a rectangle on a display;
determining scan and pixel lines associated with the rectangle;
informing a self refresh display logic that pixels of the scan and pixel lines are to be transmitted to a buffer accessible to the self refresh display logic; and
transmitting pixels of the scan and pixel lines to the buffer, including provid…

Assignees

• Nath Siddhartha
• Kumar Suresh
• Satyanantha Rama Gopal Musunuri
• Intel Corp

Inventors

• Nath Siddhartha
• Kumar Suresh
• Satyanantha Rama Gopal Musunuri

Classifications

• G09G2340/12

  Physics · mapped topic

• G09G2360/18

  Physics · mapped topic

• G09G5/363 Primary

  Physics · mapped topic