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:
Dec. 03, 2013
Filed:
Dec. 14, 2011
Ivan Carlos Ribeiro Nascimento, Campinas, BR;
Ivan Carlos Ribeiro Nascimento, Campinas, BR;
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A touch sensing interface () includes a noise touch sensing circuit () that utilizes electromagnetic (EM) noise in a touch panel () to determine whether a pad of the touch panel is touched, such as by a finger of a user. The noise touch sensing circuit detects noise in a first pad () and in a second pad () of the touch panel, compares power of the noise in the first pad to power of noise in the second pad, and outputs a signal () indicative of the first pad being touched when power of noise in the first pad exceeds power of noise in the second pad by a pre-selected amount. The touch sensing interface may include a capacitive touch sensing circuit () and a controller () that selectively actuates the noise touch sensing circuit and the capacitive touch sensing circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile