The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2022
Filed:
Apr. 13, 2021
Applicant:
Wacom Co., Ltd., Saitama, JP;
Inventors:
Assignee:
Wacom Co., Ltd., Saitama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/0354 (2013.01); G06F 3/044 (2006.01); G06F 3/041 (2006.01); G06F 3/038 (2013.01);
U.S. Cl.
CPC ...
G06F 3/03545 (2013.01); G06F 3/0383 (2013.01); G06F 3/0442 (2019.05); G06F 3/04162 (2019.05);
Abstract
Active pen includes first and second electrodes provided at different positions, a transmission circuit that uses a booster circuit to cause a change in the first electrode to thereby transmit a downlink signal, a reception circuit that uses the second electrode to detect an uplink signal, and a stop filter that prevents a change in a potential of the first electrode from affecting a potential of the uplink signal detected by the reception circuit.