Single-chip multi-output graphic system

• US 20070085852A1
• Filed: 10/13/2005
• Published: 04/19/2007
• Est. Priority Date: 10/13/2005
• Status: Active Grant

• Current Assignee: V. R. Technology Co., Ltd.
• Original Assignee: V. R. Technology Co., Ltd.
• Inventors: Chang, Jung-Che, Wang, Tai-Cheng
• Granted Patent: US 7,423,651 B2
• Time in Patent Office: Days
• US Class Current: 345/519
• CPC Class Codes: G06F 3/1431 using a single graphics controller

Abstract

The present invention provides a single-chip but multi-output graphic system which provides identical or different graphic images on two display screens. The graphic system comprises at least a multimedia database, a first input process router, a second input process router, a first graphic processing unit and a second graphic processing unit. The first input process router selects the backdrop graphics and the moving object graphics (which are both provided by the multimedia database), feeds them into the first graphic processing unit and then outputs the processed graphics onto either the first display unit or the second display unit. Similarly, the second graphic processing units processes the backdrop graphics and the moving object graphics selected by the second input process router and then outputs the process graphics onto either the first display unit or the second display unit.

Claims

1. A single-chip multi-output graphic system, comprising:

a multimedia database, storing multiple backdrop graphics and multiple moving object graphics;

a first input process router, wherein said first processed output includes said backdrop graphics and said moving object graphics, which are determined by a display rule;

a second input process router, wherein said second processed output includes said backdrop graphics and said moving object graphics, which are determined by a display rule;

a first graphic processing unit, processing said backdrop graphics and said moving object graphics selected by said first input process router and providing output graphics to either said first display unit or said second display unit; and

a second graphic processing unit, processing said backdrop graphics and said moving object graphics selected by said second input process router and providing output graphics to either said first display unit or said second display unit.

2. The single-chip multi-output graphic system as claimed in claim 1, wherein said first graphic processing unit comprises at least:

an overlay module, overlaying said backdrop graphics and said moving object graphics and producing a index color; and

a palette module, converting said index color into a physical color.

3. The single-chip multi-output graphic system as claimed in claim 2, wherein said system further comprise:

a first output overlay module, overlaying said physical color and outputting to said first display facility; and

a first output router, selecting said physical color from said first graphic processing unit according to a display rule and outputting said physical color to said first output overlay module.

4. The single-chip multi-output graphic system as claimed in claim 3, wherein said system further comprises:

a fifth output router for selecting said physical color from a external signal source according to a display rule and outputting said physical color to said either said first output overlay module or said second output overlay module.

5. The single-chip multi-output graphic system as claimed in claim 2, wherein said system further comprise:

a first output overlay module, overlaying said physical color and outputting to said first display facility; and

a second output router, selecting said physical color from said second graphic processing unit according to a display rule and output said physical color to said first output overlay module.

6. The single-chip multi-output graphic system as claimed in claim 5, wherein said system further comprises:

a fifth output router for selecting said physical color from a external signal source according to a display rule and outputting said physical color to said either said first output overlay module or said second output overlay module.

7. The single-chip multi-output graphic system as claimed in claim 2, wherein said system further comprise:

a second output overlay module, overlaying said physical color and outputting to said second display facility; and

a third output router, selecting said physical color from said second graphic processing unit according to a display rule and outputting said physical color to said second output overlay module.

8. The single-chip multi-output graphic system as claimed in claim 7, wherein said system further comprises:

a fifth output router for selecting said physical color from a external signal source according to a display rule and outputting said physical color to said either said first output overlay module or said second output overlay module.

9. The single-chip multi-output graphic system as claimed in claim 2, wherein, said system further comprise:

a second output overlay module, overlaying said physical color and outputting to said second display facility; and

a forth output router, selecting said physical color from said second graphic processing unit according to a display rule and outputting said physical color to said second output overlay module.

10. The single-chip multi-output graphic system as claimed in claim 9, wherein said system further comprises:

a fifth output router for selecting said physical color from a external signal source according to a display rule and outputting said physical color to said either said first output overlay module or said second output overlay module.