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. 23, 2014
Filed:
Mar. 16, 2011
Jens Kristian Poulsen, Kitchener, CA;
Cyril Antoine Martin, Dusseldorf, DE;
Mohamad El-hage, Cambridge, CA;
Jens Kristian Poulsen, Kitchener, CA;
Cyril Antoine Martin, Dusseldorf, DE;
Mohamad El-Hage, Cambridge, CA;
Blackberry Limited, Waterloo, CA;
Abstract
According to some aspects, a system for controlling an electronic device including an audio accessory coupled to the electronic device. The audio accessory has at least one speaker adapted to provide audio output and a plurality of resistive switches. The electronic device has a bias voltage source adapted to provide power to the resistive switches via a bias resistor and a ground connection, and a measurement module. The measurement module is adapted to monitor a bias point to determine which of the at least one switch has been engaged based on effect of the resistive switches on the ground offset voltage after compensating for a ground offset voltage caused by the audio output.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile