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Method and apparatus for identifying locations of ambiguous multiple touch events

A touch and event technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc.

Inactive Publication Date: 2008-11-19
TYCO ELECTRONICS RAYCHEM BVBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in video games that involve head-to-head competition, the likelihood is higher

Method used

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  • Method and apparatus for identifying locations of ambiguous multiple touch events
  • Method and apparatus for identifying locations of ambiguous multiple touch events
  • Method and apparatus for identifying locations of ambiguous multiple touch events

Examples

Experimental program
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Embodiment Construction

[0020] FIG. 4 illustrates a touch sensor system 260 capable of resolving multiple touch situations, according to one embodiment of the invention. As previously described, touch sensor system 260 includes display device 115 having touch screen 105 and transparent sensor substrate 120 . The controller 262 is interconnected with the touch screen 105 through the wires 111 . The controller 262 also includes at least one buffer 264 and 266 for temporarily storing coordinate information and / or signals representing the coordinate information.

[0021] As described below, microprocessor 268 may receive signals from touch screen 105 and determine coordinate information for a touch event. Microprocessor 268 may then output the coordinate information to another device, such as a central or host computer 272, via lead 270. It should be understood that the coordinate information communicated over leads 270 is representative only. Additionally, information may be output by computer 272 in...

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PUM

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Abstract

Method and apparatus for identifying locations on a touchscreen (105) of at least two touch events (250, 251) that occur within a predetermined time of one another comprises monitoring the touchscreen for touch events. Each touch event occurs at a discrete location on the touchscreen defined by an XY coordinate pair. A coordinate series is generated including at least two X coordinates and at least two Y coordinates when first and second touch events occur within a predetermined time of one another. When a release event occurs, the release event is correlated with one of the X coordinates and one of the Y coordinates in the coordinate series to form a first XY coordinate pair corresponding to the first touch event. The first XY coordinate pair associated with the first touch event is output.

Description

technical field [0001] The present invention relates generally to touch input systems, and more particularly, to touch input systems in which multiple touches can be operated simultaneously overlapping, and to methods and apparatus for identifying multiple touch input locations. Background technique [0002] Touch input systems are present in all industrialized countries. These systems have replaced or supplemented traditional input systems such as a keyboard or mouse in a number of applications including, for example, electronic consultation kiosk systems, cash registers, order entry systems (eg, restaurants), and production line operations. Various sensing technologies including acoustic, resistive, capacitive, and infrared are employed in touch input systems currently in the market. Typically, touch input systems are used in conjunction with some type of information display system, which may include a computer. When a user touches a displayed object, the touch input sys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/043G06F3/041G06F3/048
CPCG06F3/0436G06F3/0488G06F3/0418G06F3/04186
Inventor M·R·西戈纳
Owner TYCO ELECTRONICS RAYCHEM BVBA