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. 07, 2020

Filed:

Dec. 02, 2016
Applicants:

Megumi Kawahara, Kanagawa, JP;

Yoshinaga Kato, Kanagawa, JP;

Takashi Inaoka, Tokyo, JP;

Inventors:

Megumi Kawahara, Kanagawa, JP;

Yoshinaga Kato, Kanagawa, JP;

Takashi Inaoka, Tokyo, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 3/56 (2006.01); H04M 3/38 (2006.01); G06F 21/60 (2013.01); H04L 12/18 (2006.01); H04L 29/06 (2006.01); H04N 7/15 (2006.01); H04L 29/12 (2006.01); H04M 3/51 (2006.01);
U.S. Cl.
CPC ...
H04M 3/567 (2013.01); G06F 21/604 (2013.01); G06F 21/606 (2013.01); H04L 12/1822 (2013.01); H04L 65/1093 (2013.01); H04L 65/403 (2013.01); H04M 3/38 (2013.01); H04N 7/152 (2013.01); H04L 61/6022 (2013.01); H04M 3/51 (2013.01); H04M 2203/5009 (2013.01); H04N 7/15 (2013.01);
Abstract

A control system is provided for controlling participation of another communication terminal in a session when the session has been established for transmitting information between communication terminals. The control system includes a participation control unit configured to reject participation of the other communication terminal in the session in the case where the session has been established based on a communication start request by one of the communication terminals specifying a first destination, and to permit the participation of the other communication terminal in the session in the case where the session has been established based on a communication start request by one of the communication terminals specifying a second destination different from the first destination.


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