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:
Feb. 02, 2016
Filed:
Aug. 02, 2013
Yonggang Chen, Suzhou, CN;
Changhao Shi, Suzhou, CN;
Jianxin Zhang, Shanghai, CN;
FREESCALE SEMICONDUCTOR,INC., Austin, TX (US);
Abstract
An electronic device detects erroneous key selection entries or inaccurate actuation of a keypad. The device has a keypad with aligned keys. Each of the keys is partitioned into two sensor sub regions. A first one of the sub-regions includes at least a first sensor and a second one of the sub-regions includes a second sensor. A processor with a keypad sensor inputs is selectively coupled to the first and second sensors of each of the sub-regions. The second sensor of the first key and a proximal first sensor of an adjacent second key are coupled to a common keypad sensor input to provide indistinguishable sub-regions of adjacent keys. The processor is programmed to detect an erroneous key selection entry when only a key actuation signal is provided from the common keypad sensor.