Patent · US Active

Method and system for touch sensor interface fault detection

US8416216B2 · kind B2 · utility

1Cited by

2References

15Claims

0Family size

Assignee

Freeescale Semiconductor, Inc. · US

Inventors

Jun Zhang · Shandong, CN
Yan Huang · 安丰镇, CN
Wei Luo · Lo Wu, CN
Wangsheng Mei · Suzhou, CN
Yang Wang · Suzhou, CN

Key dates

Filing date	Apr 22, 2011
Grant date	Apr 9, 2013
Priority date	—
Expiry date	Dec 6, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH03K2217/960745
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A touch sensor interface includes one or more touch detection electrodes whose capacitance increases when touched. A processor converts the increase in capacitance into a change in a counter value. A detector compares the change in the counter value with one or more count thresholds to detect faults in the touch sensor interface.

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