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:
Jan. 10, 2012

Filed:

Aug. 27, 2008
Applicants:

Ryouji Yamaoka, Chiba, JP;

Tetsuo Yamaoka, Legal Representative, Chiba, JP;

Junji Yamamoto, Tokyo, JP;

Seishi Hanaoka, Tokyo, JP;

Toshiaki Suzuki, Hachioji, JP;

Masashi Yano, Kawasaki, JP;

Inventors:

Ryouji Yamaoka, Chiba, JP;

Tetsuo Yamaoka, legal representative, Chiba, JP;

Junji Yamamoto, Tokyo, JP;

Seishi Hanaoka, Tokyo, JP;

Toshiaki Suzuki, Hachioji, JP;

Masashi Yano, Kawasaki, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01);
U.S. Cl.
CPC ...
Abstract

Provided is a wireless communication system, comprising: a base station providing communication by a plurality of communication methods; and a mobile node for communicating with the base station by the plurality of communication methods. The mobile node calculates a first distance between a wireless LAN access point and the mobile node; and judges whether the communication by the wireless LAN is possible by comparing the calculated first distance and a second distance that is a distance within which communication by a wireless LAN is available.


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