Handheld electronic device and method of controlling the handheld electronic device according to state thereof in a three-dimensional space

• US 20110043445A1
• Filed: 11/02/2010
• Published: 02/24/2011
• Est. Priority Date: 06/21/2010
• Status: Abandoned Application

• Current Assignee: Aidem Systems Inc.
• Original Assignee: Aidem Systems Inc.
• Inventors: Kao, Chin-Te
• Application Number:
  US12/926,204
• Publication Number:
  US 20110043445A1
• Time in Patent Office: Days
• US Class Current: 345/156
• CPC Class Codes: G06F 1/1694 the I/O peripheral being a single or a set of motion sensors for pointer control or gesture input obtained by sensing movements of the portable computer

Abstract

A method of controlling a handheld electronic device according to state thereof in a three-dimensional space, which is applicable to the handheld electronic device including a CPU, a displacement sensor, and a quadrant section lookup table. The displacement sensor detects variation of the state of the handheld electronic device in a three-dimensional space and generates a current state signal accordingly. The lookup table lists a plurality of quadrant sections of the three-dimensional space, wherein each quadrant section corresponds to a function program or control command. The CPU receives the current state signal and calculates a current space signal accordingly. After determining the quadrant section in the lookup table that corresponds to the current space signal, the CPU activates the function program or control command that corresponds to the quadrant section. Thus, a user can execute the desired function programs or control commands conveniently by moving the handheld electronic device single-handedly.

Claims

1. A method of controlling a handheld electronic device according to state thereof in a three-dimensional space, which is applied to the handheld electronic device comprising a central processing unit (CPU), a displacement sensor and a quadrant section lookup table, wherein the displacement sensor is configured to detect variation of the state of the handheld electronic device in the three-dimensional space and generate a current state signal accordingly, the quadrant section lookup table lists a plurality of quadrant sections of the three-dimensional space, and each said quadrant section corresponds to a function program or a control command, the method comprising the steps, performed by the CPU upon receiving the current state signal, of:

calculating a current space signal according to the current state signal;

determining, according to the quadrant section lookup table, the quadrant section therein that corresponds to the current space signal and thereby determining the quadrant section where the handheld electronic device is eventually situated in the three-dimensional space; and

activating the function program that, according to the quadrant section lookup table, corresponds to the quadrant section;

or executing the control command that, according to the quadrant section lookup table, corresponds to the quadrant section.

2. The method of claim 1, wherein the handheld electronic device further comprises an activation key electrically connected to the CPU and configured to generate an activation signal, and wherein the CPU receives the activation signal and activates the displacement sensor for detection, before receiving the current state signal.

3. The method of claim 1, wherein the current state signal comprises angular values corresponding to a roll angle, a pitch angle and a yaw angle of the three-dimensional space and a length value from a center point of the handheld electronic device to an origin of the three-dimensional space.

4. A handheld electronic device controlled according to state thereof in a three-dimensional space, comprising:

a displacement sensor for detecting variation of the state of the handheld electronic device in the three-dimensional state and generating a current state signal accordingly;

a quadrant section lookup table listing a plurality of quadrant sections of the three-dimensional space, wherein each said quadrant section corresponds to a function program or a control command; and

a central processing unit (CPU) respectively and electrically connected to the displacement sensor and the quadrant section lookup table and configured for performing calculation on the current state signal so as to determine the quadrant section where the handheld electronic device is eventually situated in the three-dimensional space and activate the function program corresponding to the quadrant section or execute the control command corresponding to the quadrant section.

5. The handheld electronic device of claim 4, further comprising an activation key, wherein the activation key is electrically connected to the CPU and is configured to generate an activation signal and transmit the activation signal to the CPU so as for the CPU to activate the displacement sensor for detection.

6. The handheld electronic device of claim 4, further comprising an activation key, wherein the activation key is electrically connected to the displacement sensor and is configured to generate an activation signal and transmit the activation signal to the displacement sensor so as to activate the displacement sensor for detection.

7. The handheld electronic device of claim 5, wherein the displacement sensor is a compass and gravity-sensor.

8. The handheld electronic device of claim 6, wherein the displacement sensor is a compass and gravity-sensor.

9. The handheld electronic device of claim 5, wherein the displacement sensor is a gyro.

10. The handheld electronic device of claim 6, wherein the displacement sensor is a gyro.