System and method for refreshing imaging devices or displays on a page-level basis

• US 6,943,801 B2
• Filed: 03/31/2000
• Issued: 09/13/2005
• Est. Priority Date: 03/31/2000
• Status: Expired due to Fees

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Rosenberg, Scott A., Jensen, Sam W.
• Primary Examiner(s): Shalwala, Bipin
• Assistant Examiner(s): Kovalick, Vincent E.
• Application Number:
  US09/540,166
• Publication Number:
  US 20030020697A1
• Time in Patent Office: 1,992 Days
• Field of Search: 345/204, 345/418, 345/530, 345/531, 345/536, 345/543, 345/544, 345/547, 345/549, 345/589, 345/591, 345/593, 345/604
• US Class Current: 345/544
• CPC Class Codes: G09G 5/393 Arrangements for updating the contents of the bit-mapped memory
• CPC Class Codes: G09G 5/395 Arrangements specially adapted for transferring the contents of the bit-mapped memory to the screen G09G5/399 takes precedence

Abstract

The present invention provides a system and method for checking authorization of remote configuration operations. The method comprises storing at least one image frame such that content of the image frame is stored in a plurality of memory pages in a memory. The method further comprises sending the image frame to the display one memory page at a time to refresh the display.

Claims

1. A system to refresh a display, the system comprising:

a memory to store images of an image frame in a plurality of memory pages, the image frame is divided into tiles representing two-dimensional regions of the image frame, each of the tiles is stored in one separate memory page;

a processor to perform drawing operations to generate the images for the image frame, the processor marking memory pages corresponding to regions of the image frame that have been updated while performing the drawing operations; and

a display controller in communication with the memory to access the image frame and to send only the marked memory pages of the image frame to the display to refresh the display.

2. The system of claim 1, wherein each of the memory pages has a size of four Kilobytes.

3. The system of claim 1, wherein the image frame is represented by a configuration where color components of a pixel are deposited in contiguous memory locations.

4. The system of claim 1, wherein the image frame is represented by a configuration where color components of a pixel are separated and deposited in multiple color planes.

5. The system of claim 1, wherein the display controller sends the image frame one memory page at a time to the display to refresh the display.

6. A method to refresh a display, comprising:

storing at least one image frame such that content of the image frame is stored in a plurality of memory pages in a memory by dividing the image frame into tiles representing two-dimensional regions of the image frame and storing each of the tiles in one separate memory page;

marking memory pages corresponding to regions of the image frame that have been updated while performing drawing operations; and

sending only the marked memory pages of the image frame to the display to refresh the display.

7. The method of claim 6 further comprises using memory pages of four Kilobytes in size.

8. The method of claim 6 further comprises organizing the image frame using a configuration where color components of a pixel are deposited in contiguous memory locations.

9. The method of claim 6, further comprises organizing the image frame using a configuration where color components of a pixel are separated and deposited in multiple color planes.

10. The method of claim 6, wherein the sending of the marked memory pages of the image frame to the display to refresh the display further comprises sending the marked memory pages one memory page at a time.

11. A program embodied on a system-readable medium to refresh a display, comprising:

a first sub-program to control storing at least one image frame in a memory such that content of the image frame is stored in a plurality of memory pages in the memory;

a second sub-program to mark memory pages corresponding to regions of the image frame that have been updated while performing drawing operations;

a third sub-program to divide the image frame into tiles representing regions of the image frame and to store each tile in a separate memory page; and

at least one sub-program to access the image frame and to send only the marked memory pages of the image frame one memory page at a time to the display to refresh the display.

12. The program of claim 11 further comprising:

a third sub-program to organize the image frame using a configuration where color components of a pixel are deposited in contiguous memory locations.

13. The program of claim 11 further comprising:

a third sub-program to organize the image frame using a configuration where color components of a pixel are separated and deposited in multiple color planes.