Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yasuo Oda0
Tomohiro Kagami0
Date of Patent
May 14, 2019
0Patent Application Number
154730170
Date Filed
March 29, 2017
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An electrostatic pen has a switch, control circuitry to control the switch and a pen point electrode. The switch has first, second and third terminals and a first diode having an anode coupled to the first terminal and a cathode coupled to the third terminal. The pen point electrode is coupled to the first terminal of the switch. The control circuitry, in operation, supplies respective potentials to the second terminal and the third terminal of the switch and switches between two or more states including a first state in which a potential of the second terminal is higher than a potential of the third terminal and a second state in which the potential of the second terminal is equal to or lower than the potential of the third terminal.
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