Patent · US Active

Touch and force sensing for input devices

US8421483B2 · kind B2 · utility

80Cited by

6References

13Claims

0Family size

Assignee

Sony Ericsson Mobile Communications AB · SE

Inventors

Gunnar Klinghult · Lund, SE
Mats Kleverman · Helsingborg, SE

Key dates

Filing date	Jun 13, 2008
Grant date	Apr 16, 2013
Priority date	—
Expiry date	Jun 11, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG06F2203/04106
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A device may include a first layer, a second layer, a third layer, a capacitive sensing component coupled to the first layer, and a force sensing component coupled to the first layer and the third layer and configured to detect the amount of force applied to the second layer. A method may include monitoring capacitance and voltage at one or more input sensors configured to detect changes in capacitance and to detect changes in applied force, detecting a change in capacitance, activating a capacitance response in response to detecting a change in capacitance, detecting a change in voltage, and activating a force response in response to detecting a change in voltage.

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