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. 18, 2006

Filed:

Jul. 20, 2004
Applicants:

Kenichi Sakamoto, Tokyo, JP;

Tsutomu Kusaki, Yokohama, JP;

Masaru Murakami, Yokohama, JP;

Takashi Yokoyama, Yokohama, JP;

Inventors:

Kenichi Sakamoto, Tokyo, JP;

Tsutomu Kusaki, Yokohama, JP;

Masaru Murakami, Yokohama, JP;

Takashi Yokoyama, Yokohama, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q 7/00 (2006.01); H04L 12/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

A communication system includes a control unit, a switch and a diversity hand-over processing unit connected to the control unit and the switch for receiving both a first communication signal received from a radio base station which outputs the hand-over instruction, and a second communication signal received from another radio base station to which the communication signal will be hand-over so as to output one of the first and second communication signals to the associated interface circuit. The diversity hand-over processing unit transmits the communication signal received through the radio base station from the mobile station on the reception side for communication to both the interface circuit associated with the radio base station as a source of hand-over and the interface circuit associated with the radio base station as a destination of hand-over.


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