MOTION CONTROL TOUCH SCREEN METHOD AND APPARATUS

• US 20120056837A1
• Filed: 09/08/2011
• Published: 03/08/2012
• Est. Priority Date: 09/08/2010
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Yong-gook, Eom, Ju-il, Jung, Ji-su, Han, Kuk-Hyun
• Granted Patent: US 9,684,439 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 2203/04104 Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
• CPC Class Codes: G06F 2203/04105 Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
• CPC Class Codes: G06F 2203/04808 Several contacts: gestures triggering a specific function, e.g. scrolling, zooming, right-click, when the user establishes several contacts with the surface simultaneously; e.g. using several fingers or a combination of fingers and pen
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04186 Touch location disambiguation
• CPC Class Codes: G06F 3/04845 for image manipulation, e.g. dragging, rotation, expansion or change of colour
• CPC Class Codes: G06F 3/0485 Scrolling or panning
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

An apparatus and method of controlling a motion of an object on a touch screen of a device including recognizing pressures at least two positions on the touch screen of the device, and controlling a motion of the object on the touch screen using a difference in pressure between the at least two recognized positions.

Claims

1. A method of controlling a motion of an object on a touch screen of a device, the method comprising:

recognizing pressures at least two positions on the touch screen of the device; and

controlling the motion of the object on the touch screen using a difference in pressure between the at least two recognized positions.

2. The method of claim 1, wherein recognizing the pressures further comprises:

recognizing an intensity of pressure at the at least two positions.

3. The method of claim 2, wherein controlling the motion of the object comprises:

comparing a distance on an X axis with a distance on a Y axis between the at least two positions; and

determining the motion of the object to be in the X axis direction when the distance on the X axis is longer than the distance on the Y axis, and the motion of the object to be in the Y axis direction when the distance on the Y axis is longer than the distance on the X axis.

4. The method of claim 2, wherein controlling the motion of the object comprises:

determining a direction of the motion of the object to be toward a position having a higher pressure when there are two positions; and

determining the direction of the motion of the object by using a vector of three positions when there are three or more positions.

5. The method of claim 2, wherein controlling the motion of the object further comprises determining a speed of the motion of the object using a difference in intensity of pressure between the at least two positions.

6. An apparatus for controlling a motion of an object on a touch screen of a device, the apparatus comprising:

a recognition unit for recognizing pressures at least two positions on the touch screen of the device; and

a processing unit for controlling the motion of the object on the touch screen using a difference in pressure between the at least two positions.

7. The apparatus of claim 6, wherein the recognition unit recognizes intensities of pressures at the at least two positions.

8. The apparatus of claim 7, wherein the processing unit compares a distance on an X axis with a distance on a Y axis between the at least two positions, and determines the motion of the object to be in the X axis direction when the distance on the X axis is longer than the distance on the Y axis, and the motion of the object to be in the Y axis direction when the distance on the Y axis is longer than the distance on the X axis.

9. The apparatus of claim 7, wherein the processing unit determines a direction of the motion of the object to be toward a position having a higher pressure when there are two positions, and determines the direction of the motion of the object by using a vector of three positions when there are three or more positions.

10. The apparatus of claim 7, wherein the processing unit determines a speed of the motion of the object using a difference in intensity of pressure between the at least two positions.