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.

Date of Patent:
Jul. 21, 2009

Filed:

Jan. 25, 2006
Applicant:

Fumihiro Sunda, Nagoya, JP;

Inventor:

Fumihiro Sunda, Nagoya, JP;

Assignee:

Brother Kogyo Kabushiki Kaisha, Nagoya-shi, Aichi-ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A telephone including: a telephone main unit incorporating a battery and having: a standby state determination unit that determines whether or not the telephone main unit is in a standby state; a battery voltage detection unit that detects voltage across input and output sides of the battery; a voltage determination unit that determines, when the standby state determination unit determines that the telephone main unit is in the standby state, whether or not the detection voltage detected by the battery voltage detection unit exceeds a threshold voltage set based on a voltage when the battery is normally connected; and a warning unit that issues a warning to the effect that power cannot be supplied from the battery when the voltage determination unit determines that the detection voltage exceeds the threshold voltage; and a charger that supplies power to the battery.


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