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:
Aug. 13, 2013
Filed:
Apr. 25, 2006
Applicant:
Hiroshi Yoshimachi, Tokyo, JP;
Inventor:
Hiroshi Yoshimachi, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/10 (2009.01);
U.S. Cl.
CPC ...
Abstract
A multicast transmission system includes a server and a plurality of terminal devices, the servers and the terminal devices connected through a network. Each terminal device includes data transmission means for transmitting data to the server during a PTT call, and output means for receiving counting result data from the server and outputting the counting result data. The server includes counting means for counting or tallying up data received from the terminal devices, and counting data transmission means for transmitting the counting result data to the terminal devices used by members of the PTT call.