Electronic device, a control system and a method of controlling a light-emitting element thereof

• US 20100188003A1
• Filed: 06/08/2009
• Published: 07/29/2010
• Est. Priority Date: 01/23/2009
• Status: Abandoned Application

• Current Assignee: Wistron Corporation
• Original Assignee: Wistron Corporation
• Inventors: Ku, Yu-Hsien
• Application Number:
  US12/457,305
• Publication Number:
  US 20100188003A1
• Time in Patent Office: Days
• US Class Current: 315/149
• CPC Class Codes: H05B 47/11 by determining the brightness or colour temperature of ambient light
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

A control system and a method of controlling a light-emitting element thereof are disclosed. The control system is used to adjust a light-emitting element of an electronic device. The control system comprises a control module, a signal input module, and a signal output module. The signal output module has a register. The signal input module and the signal output module are electrically connected to the control module. The method of controlling the light-emitting element comprises the follow steps: determining whether there is a signal inputted by means of the control system; if the signal is detected, adjusting the setting of the register according to the signal; generating a control signal; and adjusting the brightness level of the light-emitting element according to the control signal.

Claims

1. An electronic device comprising:

a light-emitting element; and

a control system used for controlling the light-emitting element,

wherein the control system comprises;

a control module;

a signal input module which is electrically connected with the control module for inputting a signal; and

a signal output module which is electrically connected with the control module for generating a control signal;

after the signal is inputted by the signal input module, the control module then controls the signal output module to generate the control signal for adjusting brightness level of the light-emitting element.

2. The electronic device as claimed in claim 1, wherein the signal input module is a keyboard, which uses a single key or a combination of keys for generating the input signal.

3. The electronic device as claimed in claim 1, wherein the signal input module is a hot key for generating the input signal, and the hot key is a key, physical button, a turning knob or a touch button;

.

4. The electronic device as claimed in claim 1, wherein the signal input module is a light sensor.

5. The electronic device as claimed in claim 1, wherein the signal output module comprises a register.

6. The electronic device as claimed in claim 1, wherein the signal output module is a Pulse Width Modulation (PWM) module used for generating a pulse width-modulated signal to adjust the brightness level of the light-emitting element.

7. The electronic device as claimed in claim 1, wherein the signal output module is a voltage output module used for generating a voltage signal to adjust the brightness level of the light-emitting element.

8. The electronic device as claimed in claim 1 further comprising a storage module for storing an application program, wherein the application program is used by the control module to control the light-emitting element.

9. A control system for controlling a light-emitting element, wherein the control system comprises:

a control module;

a signal input module which is electrically connected with the control module for inputting a signal; and

a signal output module which is electrically connected with the control module for generating a control signal;

after the signal is inputted by the signal input module, the control module then controls the signal output module to generate the control signal for adjusting brightness level s of the light-emitting element.

10. The control system as claimed in claim 9, wherein the signal input module is a key, a combination of keys, a hot key or a light sensor for generating the input signal.

11. The control system as claimed in claim 9, wherein the signal output module comprises a register.

12. The control system as claimed in claim 9, wherein the signal output module is a Pulse Width Modulation (PWM) module used for generating a pulse width-modulated signal to adjust the brightness level of the light-emitting element.

13. The control system as claimed in claim 9, wherein the signal output module is a voltage output module used for generating a voltage signal to adjust the brightness level of the light-emitting element.

14. The control system as claimed in claim 9 further comprising a storage module for storing an application program, wherein the application program is used by the control module to control the light-emitting element.

15. A method for controlling a light-emitting element, which is used by a control system to control a light-emitting element, the method comprising the following steps:

determining whether there is a signal inputted by means of the control system;

if the signal is detected, then generating a control signal; and

adjusting brightness level of the light-emitting element according to the control signal.

16. The method for controlling the light-emitting element as claimed in claim 15, wherein the process of determining whether there is the signal inputted comprises the steps of:

using a light sensor to determine whether the brightness level of the surrounding environment has changed; and

determining whether the brightness value of the surrounding environment exceeds a predefined reference value and therefore input the signal.

17. The method for controlling the light-emitting element as claimed in claim 15, wherein the step of determining whether there is the signal inputted further comprises the step of determining whether the signal is inputted by a key or a combination of keys.

18. The method for controlling the light-emitting element as claimed in claim 15, wherein the step of determining whether there is the signal inputted further comprises the step of determining whether the signal is inputted by a hot key.

19. The method for controlling the light-emitting element as claimed in claim 15, further comprising the step of calculating the brightness level required for adjusting the light-emitting element.

20. The method for controlling the light-emitting element as claimed in claim 15, further comprising the step of controlling the light-emitting element by means of an application program.