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:
Sep. 02, 2014

Filed:

Oct. 28, 2009
Applicants:

Shoji Fukuzawa, Osaka, JP;

Yoshiyuki Tanaka, Osaka, JP;

Inventors:

Shoji Fukuzawa, Osaka, JP;

Yoshiyuki Tanaka, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 3/36 (2006.01); H04W 72/02 (2009.01); H04W 72/04 (2009.01); H04W 84/08 (2009.01); H04B 7/155 (2006.01);
U.S. Cl.
CPC ...
H04W 72/02 (2013.01); H04W 72/042 (2013.01); H04W 84/08 (2013.01); H04B 7/15542 (2013.01);
Abstract

Wireless terminal devices (TA) to (TH) each detects whether channel information received from each of repeaters () to () indicates an occupied state or an idle state, and when detecting a channel in an idle state, writes identification information of that channel in a RAM (). The wireless terminal devices (TA) to (TH) each selects a piece of identification information of a channel among plural pieces of identification information of a channel written in the RAM () to start making a call to a channel of the selected identification information.


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