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:
Apr. 09, 2019

Filed:

Nov. 27, 2015
Applicants:

Naoki Umehara, Kanagawa, JP;

Takahiro Asai, Kanagawa, JP;

Hiroshi Hinohara, Kanagawa, JP;

Inventors:

Naoki Umehara, Kanagawa, JP;

Takahiro Asai, Kanagawa, JP;

Hiroshi Hinohara, Kanagawa, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 12/18 (2006.01); H04N 7/15 (2006.01); G06F 15/16 (2006.01); H04M 3/56 (2006.01); H04L 29/08 (2006.01);
U.S. Cl.
CPC ...
H04L 65/1069 (2013.01); H04L 12/1822 (2013.01); H04L 65/1046 (2013.01); H04L 65/403 (2013.01); H04N 7/15 (2013.01); H04L 67/28 (2013.01); H04M 3/562 (2013.01);
Abstract

A control system includes a plurality of control apparatuses each capable of controlling a first communication terminal connected to the control apparatus. Each control apparatus transmits search information including terminal identification information for identifying a second communication terminal to other control apparatuses of the plurality of control apparatuses, searches for one of the other control apparatuses that is connected to the second communication terminal based on responses that are transmitted from the other control apparatuses in response to the search information, and transmits state information indicating a state of the first communication terminal connected to the control apparatus to the searched control apparatus connected to the second communication terminal.


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