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. 10, 2013
Filed:
Apr. 27, 2010
Applicant:
Markus Littow, Oulu, FI;
Inventor:
Markus Littow, Oulu, FI;
Assignee:
ST-Ericsson SA, Plan-les-Ouates, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device has a battery presence detection system. A line charging pulse signal is applied to a terminal battery detection line, which is connected when the battery is present to a ground line via a resistor and a capacitance. A detector determines whether the battery is connected to the mobile terminal based on detecting whether a line voltage edge or a line voltage level on the terminal battery detection line is present.