METHOD FOR GENERATING MOVEMENT POSITION COORDINATE AND HUMAN-MACHINE INTERFACE INPUT SYSTEM USING THE SAME

• US 20140071038A1
• Filed: 08/06/2013
• Published: 03/13/2014
• Est. Priority Date: 09/07/2012
• Status: Abandoned Application

• Current Assignee: AU Optronics Corporation
• Original Assignee: AU Optronics Corporation
• Inventors: HSU, Yu-Min, LI, Yi-Min, CHANG, Sheng-Yun, JHOU, Sin-Guo
• Application Number:
  US13/959,918
• Publication Number:
  US 20140071038A1
• Time in Patent Office: Days
• US Class Current: 345/156
• CPC Class Codes: G06F 3/01 Input arrangements or combined input and output arrangements for interaction between user and computer G06F3/16 takes precedence
• CPC Class Codes: G06F 3/038 Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry

Abstract

A method for generating a movement position coordinate adapted to be used in a human-machine interface input controller is provided. The method includes steps of: sequentially generating a plurality of position coordinates by detecting a movement of an object; reading and storing the position coordinates; performing, when the number of the stored position coordinates reaches to a predetermined value, an operation on the position coordinates to obtain a movement position coordinate; and modulating the predetermined value in accordance with a change of a movement rate of the object.

Claims

1. A method for generating a movement position coordinate adapted to be used in a human-machine interface input controller, the method comprising steps of:

sequentially generating a plurality of position coordinates by detecting a movement of an object;

reading and storing the position coordinates;

performing, when the number of the stored position coordinates reaches to a predetermined value, an operation on the position coordinates to obtain a movement position coordinate; and

modulating the predetermined value in accordance with a change of a movement rate of the object.

2. The method according to claim 1, wherein the operation is an averaging operation.

3. The method according to claim 1, wherein the operation is a weighted mean operation.

4. The method according to claim 1, wherein the operation is an intermediate value operation.

5. The method according to claim 1, wherein the step of modulating the predetermined value in accordance with a change of a movement rate of the object comprises a step of:

decreasing the predetermined value with an increasing of the movement rate of the object.

6. The method according to claim 1, wherein the step of modulating the predetermined value in accordance with a change of a movement rate of the object comprises a step of:

increasing the predetermined value with a decreasing of the movement rate of the object.

7. The method according to claim 1, wherein the step of modulating the predetermined value in accordance with a change of a movement rate of the object comprises steps of:

calculating a plurality of coordinate differences in accordance with respective two adjacent position coordinates;

summing the coordinate differences and referring the sum of the coordinate differences to as a movement distance of the object; and

decreasing the predetermined value if the movement distance of the object is greater than a maximum threshold of the predetermined value;

or

increasing the predetermined value if the movement distance of the object is smaller than a minimum threshold of the predetermined value.

8. The method according to claim 1, further comprising:

removing the oldest one or more position coordinates after modulating the predetermined value.

9. A human-machine interface input system, comprising:

a storage unit configured to store a plurality of position coordinates sequentially generated by the human-machine interface input system in response to a movement of an object; and

an operation unit in communication with the storage unit and configured to perform, when the number of the stored position coordinates reaches to a predetermined value, an operation on the position coordinates to obtain a movement position coordinate and modulate the predetermined value in accordance with a change of a movement rate of the object.

10. The human-machine interface input system according to claim 9, wherein the operation performed by the operation unit, is an averaging operation, a weighted mean operation, or an intermediate value operation.

11. The human-machine interface input system according to claim 9, wherein the operation unit decreases the predetermined value with an increasing of the movement rate of the object.

12. The human-machine interface input system according to claim 9, wherein the operation unit increases the predetermined value with a decreasing of the movement rate of the object.

13. The human-machine interface input system according to claim 9, wherein the operation unit modulates the predetermined value by:

calculating a plurality of coordinate differences in accordance with respective two adjacent position coordinates;

summing the coordinate differences and referring the sum of the coordinate differences to as a movement distance of the object;

decreasing the predetermined value if the movement distance of the object is greater than a maximum threshold of the predetermined value;

or

increasing the predetermined value if the movement distance of the object is smaller than a minimum threshold of the predetermined value.

14. The human-machine interface input system according to claim 9, wherein the object is a finger, a touch pen, or a medium driving the human-machine interface input system.