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.

Date of Patent:
Sep. 16, 2025

Filed:

Apr. 29, 2024
Applicant:

Logitech Europe S.a., Lausanne, CH;

Inventors:

Kuo Hsiang Chen, Toufen, TW;

Jérémie Willemin, Zhubei, TW;

Feng-Hao Lin, Hsinchu, TW;

Assignee:

Logitech Europe S.A., Lausanne, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/00 (2006.01); H03K 17/64 (2006.01); H03K 17/795 (2006.01); H03K 17/972 (2006.01);
U.S. Cl.
CPC ...
H03K 17/7955 (2013.01); H03K 17/64 (2013.01); H03K 17/972 (2013.01); H01H 2221/04 (2013.01); H03K 2217/94104 (2013.01);
Abstract

A keyboard key structure comprising a key stem, a contact-based mechanical trigger, and a contactless analog key switch. The key stem is configured to be depressed and move along a linear path over a range of operation. The contact-based mechanical trigger is configured to activate after the key stem is depressed a threshold distance in the range of operation. In response to the contact-based mechanical trigger activating, the contactless analog key switch is configured to detect, at a sample rate, a position of the key stem between the threshold distance and an end of the range of operation after the key stem is depressed. The contact-based mechanical trigger can be a galvanic-type key switch. The contactless analog key switch can be one of an optical key switch, a magnetic key switch, or an inductive key switch.


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