US 12,236,052 B2
Position indicator including control circuit that causes electrode to switch from being connected to alternating potential to being connected to fixed potential in response to determining that pen pressure is detected
Sadao Yamamoto, Tokyo (JP)
Assigned to Wacom Co., Ltd., Kazo (JP)
Filed by Wacom Co., Ltd., Saitama (JP)
Filed on May 2, 2023, as Appl. No. 18/311,165.
Application 18/311,165 is a continuation of application No. 17/588,132, filed on Jan. 28, 2022, granted, now 11,675,467.
Application 17/588,132 is a continuation of application No. 16/592,694, filed on Oct. 3, 2019, granted, now 11,269,468, issued on Mar. 8, 2022.
Application 16/592,694 is a continuation of application No. PCT/JP2018/014180, filed on Apr. 3, 2018.
Claims priority of application No. 2017-111236 (JP), filed on Jun. 6, 2017.
Prior Publication US 2023/0315240 A1, Oct. 5, 2023
Int. Cl. G06F 3/044 (2006.01); G06F 3/0338 (2013.01); G06F 3/0354 (2013.01); G06F 3/038 (2013.01)
CPC G06F 3/0446 (2019.05) [G06F 3/0338 (2013.01); G06F 3/03545 (2013.01); G06F 3/0383 (2013.01); G06F 3/0441 (2019.05); G06F 3/0442 (2019.05)] 20 Claims
OG exemplary drawing
 
1. A position indicator that electrostatically interacts with a position detecting device including a sensor, the position indicator comprising:
a casing having a pen shape;
an electrode within the casing;
a conductive core body including a pen tip that protrudes from an opening on one end in an axial direction of the casing, wherein the electrode surrounds the conductive core body;
a pen pressure detector which, in operation, detects a pen pressure applied to the conductive core body;
a control circuit which, in operation:
receives an instruction signal transmitted by the position detecting device,
determines whether the pen pressure is detected by the pen pressure detector, and
causes the electrode to switch from being connected to an alternating potential to being connected to a fixed potential in response to detecting device determining that the pen pressure is detected by the pen pressure detector.