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:
Mar. 17, 2026
Filed:
Sep. 08, 2023
Topre Corporation, Tokyo, JP;
Seiji Hiraki, Sagamihara, JP;
TOPRE CORPORATION, Tokyo, JP;
Abstract
A key switch device includes: a key that is configured to output a signal corresponding to a pressing amount; a pressing amount detector that is configured to detect the pressing amount of the key; an A/D converter that is configured to convert the pressing amount of the key into digital data; and a RAM that is configured to store multiple operating points for switching between ON and OFF states of the key according to the digital data. In addition, the key switch device includes an output signal control unit that is configured to output an ON signal when the pressing amount exceeds any one of the operating points in a direction in which the pressing amount of the key increases, and to output an OFF signal when the pressing amount falls below any one of the operating points in a direction in which the pressing amount of the key decreases.