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.
Patent No.:
Date of Patent:
Mar. 24, 2009
Filed:
May. 14, 2007
Keiko Tanigawa, Kawasaki, JP;
Kazuma Yumoto, Hachiouji, JP;
Kenta Shiga, Yokohama, JP;
Toru Hoshi, Yokohama, JP;
Keiko Tanigawa, Kawasaki, JP;
Kazuma Yumoto, Hachiouji, JP;
Kenta Shiga, Yokohama, JP;
Toru Hoshi, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The usage of communication systems is improved. An IM servermanages presence information regarding each of IM clients and usable media and user information such that each of the IM clients can obtain these kinds of information. In order to perform text chatting, the IM servermanages a connection between each of the IM clients participating the chat and the IM server, merges text from each of the participating IM clients and distributes the result to each of the participating IM clients. In order to perform voice chatting, an AP servermanages a connection between each of the IM clients participating the chat and an MD server, mixes voice from each of the participating IM clients except for a focused IM client and distributes the result to the focused participating IM clients. This processing is performed for each of the participating IM clients.