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

• US 20030020697A1
• Filed: 03/31/2000
• Published: 01/30/2003
• Est. Priority Date: 03/31/2000
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Jensen, Richard W., Rosenberg, Scott A.
• Granted Patent: US 6,943,801 B2
• Time in Patent Office: Days
• US Class Current: 345/204
• 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 at least one image frame such that content of the image frame is stored in a plurality of memory pages in the memory; and

a display controller in communication with the memory to access the image frame and to send the image frame one memory page at a time to the display to refresh the display.

2. The system of claim 1 further comprises a processor to perform drawing operations to generate images for the image frame, the processor marking memory pages corresponding to regions of the image frame that have been updated.

3. The system of claim 2, wherein the display controller sends only the marked memory pages of the image frame to the display.

4. The system of claim 1, wherein 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.

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

6. 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.

7. 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.

8. A method to refresh a display, the system 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; and

sending the image frame to the display one memory page at a time to refresh the display.

9. The method of claim 8 further comprises marking memory pages corresponding to regions of the image frame that have been updated while performing drawing operations.

10. The method of claim 9, further comprises sending only the marked memory pages of the image frame to the display.

11. The method of claim 8 further comprising:

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.

12. The method of claim 8 further comprises using memory pages of four Kilobytes in size.

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

14. The method of claim 8, further comprises organizing the image frame using a configuration where color components of a pixel are separated and deposited in multiple color planes.

15. 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; and

a second sub-program to access the image frame and to send the image frame one memory page at a time to the display to refresh the display.

16. The program of claim 15, further comprising a third sub-program to mark memory pages corresponding to regions of the image frame that have been updated while performing drawing operations.

17. The program of claim 16 further comprising a fourth sub-program to send only the marked memory pages of the image frame to the display.

18. The program of claim 15 further comprising:

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.

19. The program of claim 15 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.

20. The program of claim 15 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.