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:
Jun. 21, 2016
Filed:
Jul. 22, 2014
Darfon Electronics (Suzhou) Co., Ltd., Suzhou, Jiangsu Province, CN;
Darfon Electronics Corp., Taoyuan, TW;
Shana Shiang-Fong Smith, Taoyuan, TW;
Chien-Min Wu, Taoyuan, TW;
Huang-Hsiao Kao, Taoyuan, TW;
Chih-An Wang, Taoyuan, TW;
Fei-Ya Chen, Taoyuan, TW;
DARFON ELECTRONICS (SUZHOU) CO., LTD., New District, Suzhou, Jiangsu Province, CN;
DARFON ELECTRONICS CORP., Gueishan, Taoyuan, TW;
Abstract
A keyswitch with force feedback function includes a vibrating source, a switching circuit and a controller. The vibrating source is connected to a cap of the keyswitch. The switching circuit is switched on according to states of the keyswitch. The controller is electrically connected to the vibrating source and the switching circuit. When the switching circuit is switched on, the controller outputs a first driving signal to the vibrating source, and the vibrating source transmits a pressing vibration to the cap of the keyswitch. A period of the first driving signal is smaller than or equal to a predetermined period, a user can feel vibration of the keyswitch due to the pressing vibration.