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:
Jul. 13, 2010
Filed:
Jan. 02, 2006
Yien-chang Liao, Hsinchu County, TW;
Fang-ming Lai, Hsinchu County, TW;
Mu-liang Wang, Hsinchu, TW;
Chun-chieh Wang, Kaohsiung, TW;
Yien-Chang Liao, Hsinchu County, TW;
Fang-Ming Lai, Hsinchu County, TW;
Mu-Liang Wang, Hsinchu, TW;
Chun-Chieh Wang, Kaohsiung, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
The present invention provides a PoC system (push-to-talk over cellular system) and a method for distributing media data in PoC. The PoC system includes a plurality of clients, a controlling server and a first participating server. In the present invention, since a media receiving port is established in the first participating server which manages at least two clients at the same time, and when a media data is going to be distributed to the clients managed by the first participating server, the controlling server delivers the media data to the media receiving port only. In addition, a multicast addressing technology is further used in the first participating server, therefore, the path of delivering media data is changed and the efficiency of media data delivery during a communication is improved.