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:
Jul. 14, 2020
Filed:
Dec. 27, 2018
Chicony Electronics Co., Ltd., New Taipei, TW;
Yen-Ching Lee, New Taipei, TW;
CHICONY ELECTRONICS CO., LTD., New Taipei, TW;
Abstract
The present invention discloses a keyboard, which includes a base plate, a plurality of key structures, a circuit board, and a capacitance sensing module. The base plate includes a plurality of opening portions. The key structures are respectively disposed in the opening portions. The circuit board is disposed on a surface of the base plate. The capacitance sensing module includes a plurality of sensing units and a controlling unit. The sensing units are respectively disposed in a plurality of clear areas, and the clear areas are proximal to the key structures. The controlling unit is disposed on the circuit board. The controlling unit is electrically connected to the sensing units. When the key structure is pressed, the corresponding sensing unit generates a capacitance variation in accordance with a pressed degree of the key structure, and controlling unit generates a capacitance variation value.