PORTABLE ELECTRONIC DEVICE AND CONTROL METHOD THEREOF

• US 20120068958A1
• Filed: 11/04/2010
• Published: 03/22/2012
• Est. Priority Date: 09/21/2010
• Status: Abandoned Application

• Current Assignee: Chi Mei Communication Systems Incorporated (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Chi Mei Communication Systems Incorporated (Hon Hai Precision Industry Co., Ltd.)
• Inventors: CHEN, WEI-HAO
• Application Number:
  US12/940,011
• Publication Number:
  US 20120068958A1
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 2203/04101 2.5D-digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface and also measures the distance of the input means within a short range in the Z direction, possibly with a separate measurement setup
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/04855 Interaction with scrollbars
• CPC Class Codes: G09G 2320/0626 for control of overall brightness
• CPC Class Codes: G09G 2360/144 the light being ambient light
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters

Abstract

A portable electronic device and method executes control functions by variations of a light intensity. The portable electronic device comprises a memory, a touch screen, a proximity sensor and at least one processor. The light sensor detects an original light intensity and a current light intensity surrounding the portable electronic device when the touch screen is turned on. If a difference in light intensity between the original light intensity and the current light intensity is more than a predetermined value, the portable electronic device controls a user interface displayed in the touch screen accordingly.

Claims

1. A portable electronic device, comprising:

a memory;

at least one processor;

a touch screen;

a light sensor;

a proximity sensor;

a comparison module operable to calculate a difference of light intensity between a current light intensity and an original light intensity detected by the light sensor in response to an object being proximate to the proximity sensor; and

a control module operable to control a user interface displayed in the touch screen according to the difference of light intensity.

2. The portable electronic device of claim 1, further comprising:

a contact sensor operable to detect whether at least one contact occurs on the touch screen;

a touch screen controller operable to generate at least one coordinate value of the at least one contact on the touch screen;

3. The portable electronic device of claim 1, wherein the comparison module further determines whether the difference of light intensity is more than a predetermined value.

4. The portable electronic device of claim 1, wherein the recording module further saves digital signals indicative of the light intensity to the memory within a preset time interval when the touch screen is turned on.

5. The portable electronic device of claim 1, wherein the touch screen is a resistive touch screen or a capacitive touch screen.

6. A method for controlling a portable electronic device, the portable electronic device comprising a touch screen, a proximity sensor, a light sensor and at least one processor, the method comprising:

detecting an original light intensity surrounding the portable electronic device using the light sensor when the touch screen is turned on;

determining if an object is proximate to the proximity sensor;

detecting a current light intensity surrounding the portable electronic device using the light sensor within a preset time interval in response to the object being proximate to the proximity sensor;

calculating a difference of light intensity between the current light intensity and the original light intensity; and

controlling a user interface displayed in the touch screen according to the difference of light intensity.

7. The method of claim 6, wherein the step of controlling the user interface scrolls a scroll bar of a browser or zooms images displayed in the user interface.

8. The method of claim 6, further comprising determining if the difference of light intensity is more than a predetermined value.

9. The method of claim 6, further comprising saving the difference of light intensity in the memory.

10. The method of claim 6, further comprising saving digital signals indicative of the light intensity to the memory within a preset time interval when the touch screen is turned on.

11. A storage medium having stored thereon instructions that, when executed by a processor, causes the processor to perform a method for controlling a portable electronic device, the portable electronic device comprising a touch screen, a proximity sensor, a light sensor and at least one processor, the method comprising:

detecting an original light intensity surrounding the portable electronic device using the light sensor when the touch screen is turned on;

determining if an object is proximate to the proximity sensor;

detecting a current light intensity surrounding the portable electronic device using the light sensor within a preset time interval in response to the object being proximate to the proximity sensor;

calculating a difference of light intensity between the current light intensity and the original light intensity; and

controlling a user interface displayed in the touch screen according to the difference of light intensity.

12. The storage medium of claim 11, wherein the step of controlling the user interface scrolls a scroll bar of a browser or zooms images displayed in the user interface.

13. The storage medium of claim 11, wherein the method further comprising determining if the difference of light intensity is more than a predetermined value.

14. The storage medium of claim 11, wherein the method further comprising saving the difference of light intensity in the memory.

15. The storage medium of claim 11, wherein the method further comprising saving digital signals indicative of the light intensity to the memory within a preset time interval when the touch screen is turned on.