ELECTRONIC DEVICES HAVING A TOUCH SCREEN AND METHOD FOR STARTING THE ELECTRONIC DEVICES

• US 20080117176A1
• Filed: 08/23/2007
• Published: 05/22/2008
• Est. Priority Date: 11/20/2006
• Status: Abandoned Application

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: LIN, TAY-YANG, KO, CHUNG-YANG, CHEN, CHIN-FENG, CHIEN, YUAN-HUNG
• Application Number:
  US11/843,660
• Publication Number:
  US 20080117176A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/0416 Control or interface arrangements specially adapted for digitisers
• CPC Class Codes: G06F 3/0421 by interrupting or reflecting a light beam, e.g. optical touch-screen

Abstract

An exemplary electronic device (10) comprises a display (11), a chip controller (131), a power supply (14) and a main processor (12). The display has a touch screen (111). The power supply is electrically connected to and controlled by the chip controller. The main processor is electrically connected to the chip controller. The main processor is used to store a start operational input and calculate a touched signal that the touch screen is touched. The main processor further compares the touched signal with the start operational input to decide whether to send a start instruction the chip controller to start the electronic device. The present invention further provides a method for starting the electronic device.

Claims

1. An electronic device comprising:

a display having a touch screen;

a chip controller;

a power supply electrically connected to and controlled by the chip controller; and

a main processor electrically connected to the touch screen and the chip controller, the main processor being used to store a start operational input including at least one of a predetermined touched position, a predetermined touched duration, and a predetermined number of touched times and outputting a touched signal including at least one of touched position, touched duration, and number of touched times that the touch screen is touched, the main processor being used to further compare the touched signal with the start operational input to decide whether to send a start instruction to the chip controller to start the electronic device.

2. The electronic device as claimed in claim 1, wherein the touch screen is an infrared touch screen, the display further comprises a plurality of photodiode-photosensor pairs arranged around the touch screen such that a photodiode and a photosensor of the photodiode-photosensor pair are aligned on opposite sides of the display, the photodiodes are configured to send infrared rays and the photosensors are configured to receive infrared rays from the corresponding photodiodes, the photodiodes and the photosensors are connected to the main controller respectively.

3. The electronic device as claimed in claim 2, wherein the display further comprises a frame, and the touch screen is confined within the frame.

4. The electronic device as claimed in claim 3, wherein the frame and the touch screen are quadrilateral in shape, the photodiodes are disposed near two adjacent sides of the frame with every two adjacent photodiodes on a same side having a same distance, the photosensors are disposed at two other adjacent sides of the frame opposite to the photodiodes.

5. The electronic device as claimed in claim 1, wherein the touch screen comprises several areas divided by the main processor.

6. The electronic device as claimed in claim 1 further comprising a circuit board, the main processor and the chip controller are electrically connected to the circuit board.

7. The electronic device as claimed in claim 1 further comprising a circuit board, the chip controller is electrically connected to the circuit board, and the main processor is positioned inside the display.

8. A method for starting an electronic device comprising:

providing an electronic device comprising a display, a chip controller, a power supply and a main processor, the power supply electrically connected to and controlled by the chip controller, the main processor electrically connected to the chip controller, the display having a touch screen;

inputting a start operational input including at least one of a predetermined touched position, a predetermined touched duration and a predetermined number of touched times into the main processor;

touching the touch screen;

the main processor getting information of the touch screen being touched;

the main processor deducing a touched signal including a touched position, touched duration and number of touched times according to the information, and the main processor comparing the touched signal with the start operational input;

the main processor sending a start instruction to the chip controller and the chip controller making the power supply applying power to start the electronic device if the touched signal being consistent with the start operational input.

9. The method as claimed in claim 8, wherein the touch screen is an infrared-light ray touch screen, the display further comprises a plurality of photodiode-photosensor pairs arranged around the touch screen in way such that a photodiode and a photosensor of a photodiode-photosensor pair are aligned on opposite sides of the display, the photodiodes send infrared rays, the photodiodes and the photosensors are connected to the main controller respectively, and infrared rays sent by the photodiodes facing the touched point are blocked by an object such that no infrared rays arrive at the photosensors corresponding to the photodiodes facing the touched point and the rest of the photosensors receive infrared rays.

10. The method as claimed in claim 9, wherein the display further comprises a frame, and the touch screen is confined within the frame.

11. The method as claimed in claim 10, wherein the frame and the touch screen are quadrilateral in shape, the photodiodes are disposed near two adjacent sides of the frame with every two adjacent photodiodes at a same side having a same distance, the photosensors are disposed at two other sides of the frame opposite to the photodiodes.

12. The method as claimed in claim 8, wherein information of the touch screen being touched is that which photosensor receives infrared rays and which photosensor does not receive infrared rays.