Patent · US Active

Force sensing input device utilizing strain gauges

US11199458B2 · kind B2 · utility

0Cited by

5References

20Claims

0Family size

Assignee

Synaptics Incorporated · US

Inventors

Tetsuo Tanemura · Tokyo, JP
David Sobel · Los Altos, US

Key dates

Filing date	Feb 28, 2020
Grant date	Dec 14, 2021
Priority date	—
Expiry date	May 6, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG06F2203/04105
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A force sensing device includes a first force sensor and a second force sensor. The first force sensor is configured to output a first force resulting signal and includes a first strain gauge coupled to a first voltage source and a first trace. The first force sensor further includes a second strain gauge coupled to a second voltage source and the first trace. The second force sensor is configured to output a second force resulting signal having a polarity opposite that of the first force resulting signal. The second force sensor includes a first strain gauge coupled to the second voltage source and a second trace, and a second strain gauge coupled to the first voltage source and the second trace.

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