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Storing trace information

A trajectory and information storage technology, applied in the direction of instruments, computing, electrical digital data processing, etc., can solve the problems of ignoring gesture input and not raising enough height

Active Publication Date: 2015-04-22
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, current solutions cannot effectively perform palm rejection in at least the following scenarios: (1) The user wishes to start writing on the touchscreen, but the user's palm / wrist is closed before the pen hovers over or touches the touchscreen. Resting on the touch screen, causing a palm-induced trajectory on the touch screen; (2) the user pauses writing for a moment and uses a finger touch gesture to zoom the content, but the pen is not lifted high enough to leave the sensing area, so the gesture input is ignored ;(3) Similar to (2), except that the pen is still touching the touch screen, but not moving

Method used

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  • Storing trace information
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Embodiment Construction

[0024] Various aspects are disclosed in the following description and associated drawings. Alternative aspects may be envisaged without departing from the scope of the invention. Additionally, well-known elements of the invention will not be described in detail or will be omitted so as not to obscure the relevant details of the invention.

[0025] The words "exemplary" and / or "example" are used herein to mean "serving as an example, instance, or illustration." Any aspect described herein as "exemplary" and / or "example" is not necessarily to be construed as preferred or advantageous over other aspects. Likewise, the term "aspects of the invention" does not require that all aspects of the invention include the discussed feature, advantage or mode of operation.

[0026] The terminology used herein is for the purpose of describing particular aspects only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to i...

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Abstract

The disclosure is directed to storing trace information. An aspect includes determining whether or not a pen is within a threshold distance of the touchscreen, storing trace information generated by a user's touch in a touch buffer if the pen is not within the threshold distance of the touchscreen, and clearing the touch buffer and storing trace information generated by the pen in the touch buffer if the pen is within the threshold distance of the touchscreen.

Description

[0001] Priority claims under 35 U.S.C. §119 [0002] This patent application claims priority to Provisional Application No. 61 / 657,618, filed June 8, 2012, entitled "PALM REJECTION," assigned to the present assignee and It is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to touch screen input methods, and more particularly to rejecting inadvertent input from a user's palm. Background technique [0004] There are two classes of stylus: passive pens, such as capacitive pens; and active pens, such as ultrasonic pens and electromagnetic resonance (EMR) pens. There are various situations where palm rejection (ie, distinguishing between palm touches and pen or finger touches) is required when a user is using a stylus. For example, an ultrasonic pen can be used to write on and off the screen. For on-screen use, the user's palm often rests on the touchscreen while writing. This palm touch should be rejected / ignored, but...

Claims

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Application Information

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IPC IPC(8): G06F3/043G06F3/0354G06F3/0488
CPCG06F3/04883G06F3/03545G06F3/043
Inventor 李仁胡伊-雅·L·尼尔森萨米尔·K·古普塔诺姆·达根D·L·克鲁尔斯
Owner QUALCOMM INC