Title:
【発明の名称】位置検出装置及び位置検出方法
Document Type and Number:
Japanese Patent JP3001395
Kind Code:
B2
Abstract:
A position transducer and a position sensing method which permit the sensing of a coordinate of each position indicator without changing resonance frequencies of a plurality of position indicators. The position transducer is made up of a first group of antennas arranged one after the other in one of two directions which cross each other at right angles within a two-dimensional plane; a second group of antennas arranged one after the other in the other direction which is at right angles to the one direction within the two-dimensional plane, selection means for selecting an antenna capable of transmitting a more intensive electromagnetic wave to a position indicator to be measured compared with an electromagnetic wave sent to the other position indicators; transmission means for transmitting an electromagnetic wave to the position indicator to be measured from the selected antenna; and reception means for receiving a response electromagnetic wave while scanning the antennas by switching the first and second groups of antennas one after the other.
Inventors:
Yasuhiro Fukusaki
Application Number:
JP10310495A
Publication Date:
January 24, 2000
Filing Date:
April 04, 1995
Export Citation:
Assignee:
Wacom Co., Ltd.
International Classes:
G06F3/033; G06F3/046; (IPC1-7): G06F3/03
Domestic Patent References:
| JP63279315A | ||||
| JP245819A |
Attorney, Agent or Firm:
Takashiro Kojima