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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.:

US 12646969 B1

PDFFull Text
Date of Patent:
Jun. 02, 2026

Filed:

Dec. 16, 2021

Active stylus, electronic device, and wireless power supply system

Applicant:

Wacom Co., Ltd., Saitama, JP;

Inventors:

Naoki Watanabe, Saitama, JP;

Masayuki Miyamoto, Saitama, JP;

Haruhiko Hisano, Saitama, JP;

Assignee:

Wacom Co., Ltd., Saitama, JP;

Attorney:

Seed Intellectual Property Law Group LLP

Primary Examiner:

Bryce M Aisaka

Int. Cl.
CPC ...
H02J 50/00 (2016.01); G06F 3/0354 (2013.01); G06F 3/044 (2006.01); H02J 7/70 (2026.01); H04W 72/21 (2023.01); H04W 72/23 (2023.01);
U.S. Cl.
CPC ...
H02J 50/00 (2016.02); G06F 3/03545 (2013.01); G06F 3/0441 (2019.05); H02J 7/731 (2026.01); H04W 72/21 (2023.01); H04W 72/23 (2023.01);
Abstract

Disclosed herein is an active stylus that transmits and receives signals to and from an electronic device, the active stylus including a receiver which, in operation, receives an uplink signal transmitted from the electronic device, a transmitter which, in operation, transmits a downlink signal to the electronic device, a power receiver which, in operation, receives power wirelessly supplied from the electronic device, and an integrated circuit. When the power is not being supplied to the power receiver, the integrated circuit causes the transmitter to transmit the downlink signal in response to the receiver receiving the uplink signal. The integrated circuit stops transmission of the downlink signal by the transmitter in response to detecting that supply of the power supply to the power receiver has started.

Find Patent Forward Citations

Watanabe, Naoki. (2026). Active stylus, electronic device, and wireless power supply system (U.S. Patent No. 12646969). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12646969

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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