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Electromagnetic induction position indicator and electronic ink cartridge

An electronic ink and inductive technology, applied in the direction of electric/magnetic position measurement, inductors, electromagnetic measuring devices, etc., can solve the problems of cost, labor and labor, and achieve the effect of simple structure

Active Publication Date: 2018-07-10
WACOM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, adjusting the trimmer capacitors 115d and 115h provided on the printed circuit board through the through-hole for pressing the push button of the push button switch 118 provided on the housing 111 requires time and effort for adjustment.
[0017] In addition, when assembling the position indicator, the above-mentioned components are assembled in the direction of the central axis, and further adjustment of the resonant frequency as described above is required, so there is a problem that it takes time and effort and is not conducive to mass production.
[0018] In addition, there is a request to make the shape of the pen thinner, but in the case of the existing structure, when the size is reduced, it takes more effort to connect the parts, and there is a problem that more man-hours are required

Method used

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  • Electromagnetic induction position indicator and electronic ink cartridge
  • Electromagnetic induction position indicator and electronic ink cartridge
  • Electromagnetic induction position indicator and electronic ink cartridge

Examples

Experimental program
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Effect test

no. 1 Embodiment approach

[0052] Figure 1 to Figure 8 It is a figure for demonstrating the structural example of 1st Embodiment of the electromagnetic induction type position indicator of this invention. In the position indicator according to the first embodiment, the configuration of changing the inductance of the coil in order to detect the pen pressure is different from that described above. Figure 21 The conventional example shown is the same. In addition, the position indicator of the first embodiment is different from the above-mentioned Figure 21 The conventional example shown similarly has a push button switch, and has a configuration in which the resonance frequency of the resonant circuit is changed by turning on / off the push switch. In addition, the push button switch is provided at a position close to the core and around the frame, and is also called a side switch.

[0053] figure 2 (A) shows the outline of the whole structure of the position indicator 1 of this 1st Embodiment, has a ...

no. 2 Embodiment approach

[0170] In the above-mentioned first embodiment, the position of the ferrite core as the first magnetic body is fixed, and the ferrite sheet as the second magnetic body is shifted in the central axis direction according to the pressing force applied to the core body. By changing the distance between the ferrite core and the ferrite sheet, the inductance of the coil wound on the ferrite core is changed according to the pressing force.

[0171] In the second embodiment described below, the ferrite core as the first magnetic body is shifted in the central axis direction according to the pressing force applied to the core, thereby changing the relationship between the ferrite core and the ferrite sheet. The distance between them changes the inductance of the coil wound on the ferrite core according to the pressing force.

[0172] Figure 10 It is a figure which shows the structural example of the electronic ink cartridge 20 which is the main part of the position indicator of this ...

no. 3 Embodiment approach

[0208] Next, in the position indicator of the above-mentioned embodiment, the electromagnetic induction signal is transmitted and received to and from the position detection device using a parallel resonant circuit composed of a coil and a capacitor, whereby the position detection device can detect the indicated position of the pointer. and pen pressure on the position indicator. However, by providing a signal processing circuit in the position indicator, for example, identification information (ID) of the position indicator and the electronic ink cartridge can be transmitted to the position detection device as information related to the position indicator and the electronic ink cartridge. Identification information (ID) is an example of information associated with electronic ink cartridges, as this identification information, it is used to identify the manufacturer, product number, manufacturing date, manufacturing lot number, electromagnetic induction method, or electrostatic...

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PUM

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Abstract

An electromagnetic induction type position indicator and an electronic ink box, the parts in the frame have a simple structure, are easy to adjust, and are also suitable for miniaturization and mass production. A position indicator containing an electromagnetic induction type electronic ink cartridge. In the cylindrical body of the electronic ink cartridge, at least the core body, the coil and the capacitor circuit are accommodated in the direction of the central axis so that the coil is located between the core body protruding from one end of the cylindrical body and the capacitor circuit. A connecting member for electrically connecting the coil and the capacitor circuit is arranged between the coil and the capacitor circuit in the cylindrical body, and the connecting member is locked to the cylindrical body. The connection terminals provided on the end face side of the connection member opposite to the capacitor circuit are electrically connected to one end and the other end of the capacitor circuit, so that the coil is electrically connected to the capacitor circuit via the connection members to which the one end and the other end of the coil are electrically connected, respectively.

Description

technical field [0001] The invention relates to an electromagnetic induction type position indicator and an electronic ink box accommodated in the electromagnetic induction type position indicator. Background technique [0002] An electromagnetic induction type coordinate input device is disclosed in, for example, Patent Document 1 (Japanese Patent Application Laid-Open No. 2002-244806 ), which is composed of a position detection device and a pen-shaped position indicator. A sensor in which a plurality of loop coils are arranged in the Y direction and the Y-axis direction, the above-mentioned position indicator includes a resonant circuit composed of a coil and a capacitor, which are an example of an inductance element wound on a magnetic core. [0003] And, the position detection device supplies a transmission signal of a predetermined frequency to the loop coil of the sensor, and the loop coil transmits it as electromagnetic energy to the position indicator. The resonant ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/0354G06F3/038G06F3/046
CPCG06F3/03545G06F3/033G06F3/038H01F38/00G01B7/003G06F3/046
Inventor 小幡政行
Owner WACOM CO LTD