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Method for synchronizing time difference of signal emission, capacitive pen and touch input device

A technology for synchronizing time difference and transmitting signals, which is applied to the fields of synchronizing time difference transmitting signals, capacitive pens and touch input devices, and can solve problems such as the inability to identify the source of the signal or the identity of the capacitive pen, and the inability to correctly identify the signal source or the number of capacitive pens.

Inactive Publication Date: 2018-05-08
WALTOP INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the time slots of the two capacitive pens partially overlap, for example, the beacon period TB0 to TB1 or the pressure gradient time slots partially overlap, the touch panel will not be able to correctly identify the signal source or the number of capacitive pens, nor can it identify the source of the signal or capacitive pen identity

Method used

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  • Method for synchronizing time difference of signal emission, capacitive pen and touch input device
  • Method for synchronizing time difference of signal emission, capacitive pen and touch input device
  • Method for synchronizing time difference of signal emission, capacitive pen and touch input device

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Embodiment Construction

[0032] Some embodiments of the present invention will be described in detail as follows. However, in addition to the following descriptions, the present invention can also be widely implemented in other embodiments, and the scope of the present invention is not limited by the embodiments, and the scope of the patents that follow shall prevail. Moreover, in order to provide a clearer description and an easier understanding of the present invention, various parts in the drawings have not been drawn in accordance with their relative dimensions, and some dimensions have been exaggerated compared with other relevant dimensions; irrelevant details have not been fully drawn , in order to simplify the schema.

[0033] In the embodiments of the present invention, some features related to the capacitive pen but not critical to the present invention, which are well known by those skilled in the art and can be implemented or used, will not be described in detail here. Regarding the capac...

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Abstract

The invention discloses a method for synchronizing time difference of signal emission, a capacitive pen and a touch input device, in particular to the method for synchronizing the time difference of the signal emission, and the capacitive pen and the touch input device using the method. A time difference synchronization tool of the touch input device and a synchronization interface of the capacitive pen are utilized, so that multiple capacitive pens synchronize the time difference of the signal emission.

Description

technical field [0001] The present invention relates to a method for transmitting signals and a capacitive pen and a touch input device using the method, in particular to a method for transmitting signals with a synchronous time difference and a capacitive pen and a touch input device using the method. Background technique [0002] Touch input with a capacitive stylus has become the mainstream of touch technology applications. The capacitive stylus can provide users to write or execute application programs with a user interface on the touch panel. When the capacitive stylus approaches or touches the touch panel, the coordinates, posture and other information of the capacitive stylus can be obtained by detecting the capacitive coupling generated between the capacitive stylus and the sensing electrodes of the touch panel. In order to establish capacitive coupling between the capacitive stylus and the sensing electrodes of the touch panel to obtain the coordinates of the capac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/0354G06F3/041
CPCG06F3/03545G06F3/0416
Inventor 叶嘉瑞
Owner WALTOP INT