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Syncretic touch contact distinguishing method

A touch sensor, normalization technology, used in instrumentation, computing, electrical digital data processing, etc.

Active Publication Date: 2012-03-21
MICROSOFT TECH LICENSING LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can be problematic in situations where individual contacts need to be tracked continuously

Method used

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  • Syncretic touch contact distinguishing method

Examples

Experimental program
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Embodiment Construction

[0010] Disclosed is a method of resolving a unified contact detected by a multi-touch sensor. When the user touches the multi-touch sensor, the sensor will try to track the user's touch as a touch contact. When two or more contacts are close to each other and seem to merge into one touch contact at a time, it may be difficult to track these contacts independently. The method of the present invention is provided for the following purpose: to distinguish a unified touch contact into two or more separate touch contacts, so that even when two or more touch contacts appear to be integrated into one by the sensor , It can also track two or more different touch contacts independently.

[0011] figure 1 An example application environment 100 including a multi-touch sensor 102 is shown. The computing system 104 includes a logic subsystem 106 and a data holding subsystem 108, and is configured to interpret the information received from the multi-touch sensor, so that the user's touch on ...

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Abstract

The present invention relates to a method for distinguishing the syncretic contact detected by a multi-point touch sensor (102), comprising the step of distinguishing first touch contact (210) to be a first centroid (N) (214) for frames (N), and the step of distinguishing second touch contact (210) different from the first touch contact to be a second centroid (N) (216) for the frames (N). Responsive to the syncretic contact in the frame (N+1) combined by the first touch contact (210) and the second touch contact (212), the syncretic touch contact (310) is distinguished to be a first centroid (N+1) (614) and the second centroid (N+1) (616).

Description

Background technique [0001] The use of small touch sensor devices is becoming increasingly common. For example, touch screens, game controllers, and mice can all use touch sensors to detect user input. When making multi-touch gestures on a small touch sensor device, the fingers tend to stay close together. When multiple touch contacts are arranged close to each other, standard touch processing on the sensor image often leads to confusion. Often, when a contact is caused by multiple independent contacts, these contacts will be reported as a single touch contact. For example, if two fingers move closer together at a certain point (for example, during a pinch gesture), then the two separate contacts may become too close to report them as a single contact. This can be problematic in situations where there is a need to keep track of individual contacts. Summary of the invention [0002] Two or more merged touch contacts can be distinguished. An embodiment includes: for frame (N),...

Claims

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Application Information

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IPC IPC(8): G06F3/041
CPCG06F3/0416G06F3/04186G06F3/044
Inventor H.本科A.威尔逊
Owner MICROSOFT TECH LICENSING LLC
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