US 12,229,364 B2
Position detection method of pointer and sensor controller
Yoshio Nomura, Saitama (JP)
Assigned to Wacom Co., Ltd., Saitama (JP)
Filed by Wacom Co., Ltd, Saitama (JP)
Filed on Aug. 1, 2022, as Appl. No. 17/878,779.
Application 17/878,779 is a continuation of application No. PCT/JP2021/000624, filed on Jan. 12, 2021.
Claims priority of application No. 2020-020424 (JP), filed on Feb. 10, 2020.
Prior Publication US 2022/0365649 A1, Nov. 17, 2022
Int. Cl. G06F 3/041 (2006.01); G06F 3/0354 (2013.01); G06F 3/038 (2013.01); G06F 3/044 (2006.01)
CPC G06F 3/04162 (2019.05) [G06F 3/03546 (2013.01); G06F 3/0383 (2013.01); G06F 3/04166 (2019.05); G06F 3/04186 (2019.05); G06F 3/0441 (2019.05); G06F 3/0442 (2019.05); G06F 2203/04104 (2013.01); G06F 2203/04105 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A position detection method performed by a sensor controller connected to a sensor including a plurality of sensor electrodes, the method detecting, with use of the sensor, a position of a passive pointer that does not transmit a signal and a position of an active pen that transmits a pen signal from a pen electrode provided on an end of the active pen, the method comprising:
acquiring a pen pressure value indicating pressure applied to a pen tip of the active pen; and
controlling an operation mode of the sensor controller according to the pen pressure value, wherein the controlling includes:
setting the operation mode of the sensor controller to a first operation mode of detecting, in time division, the position of the active pen and the position of the passive pointer on a panel surface when the pen pressure value indicates that the pen tip is not in contact with the panel surface, and
setting the operation mode of the sensor controller to a second operation mode of detecting the position of the active pen on the panel surface and not detecting the position of the passive pointer on the panel surface when the pen pressure value indicates that the pen tip is in contact with the panel surface.