Patent · US Active

Key including capacitive sensor

US9941879B2 · kind B2 · utility

5Cited by

6References

17Claims

0Family size

Assignee

Synaptics Incorporated · US

Inventors

Wei-Lung Lee · Bietigheim-Bissingen, DE
Shridhar R. Dessai · San Jose, US

Key dates

Filing date	Oct 27, 2014
Grant date	Apr 10, 2018
Priority date	—
Expiry date	Nov 6, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH03K2217/9651
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A keyboard input device including a plurality of key assemblies, at least one of the key assemblies comprising: a key cap having a top surface configured to be pressed by a user; a rigid conductive substrate (e.g., metal) coupled to a bottom surface of the key cap; a translation mechanism configured to allow translation of the key responsive to user input; and a capacitive sensor substrate disposed between the key cap and the rigid conductive substrate, the capacitive sensor substrate comprising a plurality of sensor electrodes configured to detect input objects in a sensing region of the key assembly.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.