Invention Grant
- Patent Title: Position detector and position indicator
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Application No.: US14612888Application Date: 2015-02-03
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Publication No.: US09459726B2Publication Date: 2016-10-04
- Inventor: Yuji Katsurahira
- Applicant: Wacom Co., Ltd.
- Applicant Address: JP Saitama
- Assignee: Wacom Co., Ltd.
- Current Assignee: Wacom Co., Ltd.
- Current Assignee Address: JP Saitama
- Agency: Seed Intellectual Property Law Group PLLC
- Priority: JP2009-240727 20091019
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/0354 ; G06F3/046 ; G06F3/038 ; G06F3/044

Abstract:
A position detector includes a tablet and a position indicator, which includes a coil and configured to continuously transmit a coil-based signal to the tablet as a position signal and to intermittently transmit the coil-based signal to the tablet as a non-positional signal. The tablet is configured to detect a position on its surface pointed to by the position indicator by detecting the continuously-transmitted coil-based signal, and to determine non-positional information regarding the position indicator (e.g., pen pressure, pen ID, etc.) by detecting the intermittently-transmitted coil-based signal. The position indicator further includes position indicator control circuitry configured to control the position indicator to: (i) receive an indicator control signal from the tablet; (ii) based on the received indicator control signal, select one type of non-positional information from among multiple types of non-positional information regarding the position indicator; and (iii) transmit the selected one type of non-positional information to the tablet.
Public/Granted literature
- US20150145799A1 POSITION DETECTOR AND POSITION INDICATOR Public/Granted day:2015-05-28
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