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Position indicating device and position indicating method

A technology of indicating device and voltage divider circuit, which is applied in the direction of instruments, electrical digital data processing, and data processing input/output process, etc., can solve the problems of reduced sensitivity of digital stylus, and achieve the effect of improving accuracy and voltage amplitude.

Active Publication Date: 2013-05-15
BEIJING HANWANG PENGTAI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, while the operating voltage of the CMOS circuit increases, the sensitivity of the digital stylus also decreases.

Method used

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  • Position indicating device and position indicating method
  • Position indicating device and position indicating method
  • Position indicating device and position indicating method

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Embodiment Construction

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0021] In order to improve the accuracy of detecting the position of the position indicating device without reducing the sensitivity of the position indicating device, an embodiment of the present invention provides a position indicating device that includes a voltage divider circuit. The rectifier filter circuit is connected; and the voltage divider circuit obtains a signal of a predetermined ratio from the signal output by the resonance...

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Abstract

The invention provides a position indicating device and a position indicating method, and relates to the field of digital circuit processing. In order to improve the position precision of the indicating device at a detecting position, and on the premise that the sensitivity of the position indicating device is not lowered, the technical scheme is that the position indicating device comprises a bleeder circuit. The bleeder circuit is respectively connected with a resonance circuit and a rectifying filter circuit. The bleeder circuit obtains a regulated proportion of signals from signals output by the resonance circuit and outputs the regulated proportion of signals to the rectifying filter circuit. The position indicating device and the position indicating method are applicable to digital handwriting pens.

Description

Technical field [0001] The invention relates to the field of digital circuit processing, in particular to a position indicating device and method. Background technique [0002] The electromagnetic induction handwriting input technology has been widely used in practice. The electromagnetic induction type handwriting input device usually includes an electromagnetic type stylus pen and an electromagnetic type position detection input device. Moreover, according to the relationship between the stylus pen and the position detection input device, the handwriting input device can be divided into three types: wired electromagnetic type, wireless active type, and wireless passive type. Among them, the wireless passive handwriting input device is the most convenient to use and is welcomed by users. The wireless passive stylus contains a resonant circuit composed of inductors and capacitors. The resonant circuit can sense the signal emitted by the position detection input device and gener...

Claims

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Application Information

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IPC IPC(8): G06F3/041G06F3/046
CPCG06F3/046G06F3/041G06F3/0418G06F3/03545
Inventor 赵亮
Owner BEIJING HANWANG PENGTAI TECH CO LTD
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