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:
Aug. 19, 2014

Filed:

Jun. 18, 2009
Applicants:

Hiroto Sato, Tokyo, JP;

Toshiya Tamura, Tokyo, JP;

Inventors:

Hiroto Sato, Tokyo, JP;

Toshiya Tamura, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01); H04W 8/18 (2009.01); H04W 4/02 (2009.01); H04W 88/06 (2009.01); H04W 8/08 (2009.01);
U.S. Cl.
CPC ...
H04W 8/183 (2013.01); H04W 4/02 (2013.01); H04W 88/06 (2013.01); H04W 8/08 (2013.01);
Abstract

A controller of a mobile communication apparatus, such as a cellular phone, that detects operator information based on a radio signal transmitted from a base station and checks whether the operator information has changed while maintaining the same roaming status information. When the controller detects that the operator information changed, the controller transmits one of the same roaming status information and service status information to an external device which is connected via a short-range communication link.


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