Low power mode override system and method

• US 20070283179A1
• Filed: 06/04/2007
• Published: 12/06/2007
• Est. Priority Date: 06/05/2006
• Status: Active Grant

• Current Assignee: Shenzhen TCL New Technology Limited
• Original Assignee: Shenzhen TCL New Technology Limited
• Inventors: Burnett, Angela, Xing, Minqing (Mike)
• Granted Patent: US 7,827,426 B2
• Time in Patent Office: Days
• US Class Current: 713/324
• CPC Class Codes: H04N 5/63 Generation or supply of power specially adapted for television receivers

Abstract

An exemplary method of operating an electronic device comprises determining if the electronic device is in a low power mode. The exemplary method also comprises continuing normal operation if the electronic device is not in the low power mode, determining if a wake-up timer is set if the electronic device is in the low power mode, continuing normal operation in low power mode if the wake-up timer is not set, and disabling low power mode if the electronic device is in the low power mode of operation and the wake-up timer is set.

Claims

1. An electronic device, comprising:

a wake-up timer; and

a low power override circuit that is adapted to determine whether the electronic device is in a low power mode of operation and whether the wake-up timer is set, the low power override circuit being adapted to override the low power mode of operation if the device is in the low-power mode of operation and the wake-up timer is set.

2. The electronic device recited in claim 1, wherein the low power override circuit is adapted to initialize a processor to respond to the wake-up timer if the low power mode of operation is overridden.

3. The electronic device recited in claim 1, comprising a display that is adapted to display images under the control of a processor.

4. The electronic device recited in claim 1, wherein the low power override circuit is adapted to continue normal operation in the low power mode if the electronic device is in the low power mode and the wake-up timer is not set.

5. The electronic device recited in claim 1, wherein the electronic device comprises a television.

6. The electronic device recited in claim 1, wherein the electronic device comprises a digital video recorder.

7. The electronic device recited in claim 1, wherein the electronic device comprises a set top cable box.

8. The electronic device recited in claim 1, wherein the low power override circuit is implemented entirely in a field programmable gate array (FPGA).

20. The electronic device recited in claim 1, wherein the electronic device comprises a television.

9. A method of operating an electronic device, comprising:

determining if the electronic device is in a low power mode;

continuing normal operation if the electronic device is not in the low power mode;

determining if a wake-up timer is set if the electronic device is in the low power mode;

continuing normal operation in low power mode if the wake-up timer is not set; and

disabling low power mode if the electronic device is in the low power mode of operation and the wake-up timer is set.

10. The method recited in claim 9, comprising powering up a processor to respond to the wake-up timer if the low power mode is disabled.

11. The method recited in claim 9, wherein the electronic device is adapted to display an image under control of a processor.

12. The method recited in claim 9, comprising continuing normal operation in the low power mode if the electronic device is in the low power mode and the wake-up timer is not set.

13. The method recited in claim 9, wherein the electronic device comprises a television.

14. The method recited in claim 9, wherein the electronic device comprises a digital video recorder.

15. The method recited in claim 9, wherein the electronic device comprises a set top cable box.

16. The method recited in claim 9, wherein the recited acts are performed in the recited.

17. An electronic device, comprising:

a wake-up timer;

means for determining whether the electronic device is in a low power mode of operation and whether the wake-up timer is set; and

means for overriding the low power mode of operation if the device is in the low-power mode of operation and the wake-up timer is set.

18. The electronic device recited in claim 17, comprising means for initializing a processor to respond to the wake-up timer if the low power mode of operation is overridden.

19. The electronic device recited in claim 17, comprising a display that is adapted to display images under the control of a processor.