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:
Aug. 17, 2021
Filed:
Apr. 01, 2019
Pixart Imaging Inc., Hsin-Chu, TW;
Tsung-Fa Wang, Hsin-Chu, TW;
Yen-Min Chang, Hsin-Chu, TW;
PixArt Imaging Inc., Hsin-Chu, TW;
Abstract
A keyswitch capable of identifying keycap change includes a substrate, a keycap, a resilient component, an optical detection module and a processor. The keycap is disposed above the substrate and includes a reflective element. The optical detection module is disposed on the substrate and adapted to receive an optical signal reflected from the reflective element. The processor is disposed on the substrate and electrically connected to the optical detection module. The processor is adapted to analyze the optical signal for acquiring a type and a movement of the keycap. The keyswitch further includes a supporting component and a membrane. An end of the supporting component is connected to the keycap, and the other end of the supporting component is connected to the substrate. The membrane has light penetrating property and is disposed above the optical detection module.