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Syncretic touch contact distinguishing method

A multi-touch, normalization technology, applied in the direction of instrumentation, computing, electrical digital data processing, etc.

Active Publication Date: 2014-09-10
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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Experimental program
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Embodiment Construction

[0010] A method of resolving unification contacts detected by a multi-touch sensor is disclosed. When a user touches a multi-touch sensor, the sensor tries to track the user's touch as a touch contact. When two or more contacts are close to each other and appear to merge into a single touch contact, it can be difficult to track the contacts independently. The method of the present invention is provided for the purpose of resolving a unified touch contact into two or more separate touch contacts so that even when two or more touch contacts appear to the sensor as one , also be able to track two or more different touch contacts independently.

[0011] figure 1 An example application environment 100 including a multi-touch sensor 102 is represented. Computing system 104 includes logic subsystem 106 and data-holding subsystem 108 and is configured to interpret information received from the multi-touch sensor so that a user's touch on the sensor can be resolved to a location. I...

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Abstract

A method for resolving merged contacts detected by a multi-touch sensor includes resolving a first touch contact to a first centroid(N) for a frame(N) and resolving a second touch contact, distinct from the first touch contact, to a second centroid(N) for the frame(N). Responsive to the first touch contact and the second touch contact merging into a merged touch contact in a frame(N+1), the merged touch contact is resolved to a first centroid(N+1) and a second centroid(N+1).

Description

Background technique [0001] The use of small touch sensor devices is becoming increasingly common. For example, touch screens, game controllers, and mice all employ touch sensors to detect user input. When making multi-touch gestures on small touch-sensor devices, fingers tend to move closer together. Standard touch handling on the sensor image often leads to confusion when multiple touch contacts are arranged close to each other. Frequently, when contacts are caused by multiple independent contacts, these contacts are reported as a single touch contact. For example, if two fingers move closer together at some point (for example, during a pinch gesture), then two separate contacts may become so close that they are reported as a single contact. This can be problematic in situations where individual contacts need to be tracked continuously. Contents of the invention [0002] It is possible to distinguish two or more touch contacts that have merged together. One embodiment...

Claims

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Application Information

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