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:
Apr. 16, 2013
Filed:
Apr. 29, 2009
Applicants:
Magnus Birch, Malmo, SE;
Kaj Ullen, Bjarred, SE;
Inventors:
Magnus Birch, Malmo, SE;
Kaj Ullen, Bjarred, SE;
Assignees:
Sony Corporation, Tokyo, JP;
Sony Mobile Communications AB, Lund, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 17/94 (2006.01); H03M 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Apparatus and method to detect one or more keys of a mobile wireless electronic device that have received an activating input, e.g., have been pressed, interrogates simultaneously several keys of a group of keys to reduce time required to detect which of the keys is pushed to provide inputs to the electronic device. The keys are arranged in a two dimensional matrix that facilitates organized interrogation of the keys. Resistors are used in providing a decoupling effect with respect to the antenna function of the wireless electronic device.