Multicast transmission system and data distribution method
AssigneeNEC Corporation
InventorHiroshi Yoshimachi
Life of this patent
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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.
Claims48
A multicast transmission system comprising:
- a server;
- and
- a plurality of terminal devices,
- wherein said server and said plurality of terminal devices are connected through a network,
- wherein each of said terminal devices comprises:
- data transmission means for transmitting data to said server during a PTT call, and output means for receiving counting result data from said server and outputting the counting result data, and
- wherein said server comprises a group list management unit comprising at least a say for each of said terminal devices, the say set to EXISTING during the PTT call, counting means for tallying data received from said terminal devices, and counting data transmission means for transmitting the counting result data to each of the terminal devices having the say of EXISTING in the group list management unit.
A server device comprising:
- a group list management unit comprising at least a say for each of a plurality of terminal devices, the say set to EXISTING during a PTT call;
- counting means for tallying data received from the terminal devices during the PTT call, wherein said terminal devices are connected to said server through a network, and
- counting data transmission means for transmitting counting result data to each of the terminal devices having the say of EXISTING in the group list management unit.
A terminal device comprising:
- data transmission means for transmitting data to a server during a PTT call, said server connected to the terminal device through a network, said server comprising a group list management unit comprising at least a say for the terminal, the say set to EXISTING during the PTT call, and
- output means for receiving counting result data from said server when the say is EXISTING in the group list management unit, and outputting the counting result data, the counting result data being obtained in said server through a tallying process of the data which is received by said server.
A data distribution method using a server and a plurality of terminal devices, said server and said plurality of terminal devices being connected through a network, said method comprising the steps of:
- transmitting data from said terminal devices to said server during a PTT call, said server comprising a group list management unit comprising at least a say for each of said terminal devices, the say set to EXISTING during the PTT call;
- tallying the data received from said terminal devices in said server;
- transmitting counting result data from said server to each of the terminal devices having the say of EXISTING in the group list management unit;
- and
- receiving said counting result data from said server at said terminal device and outputting the counting result data from said terminal device.
A non-transitory computer readable storage medium having computer readable program for operating on a computer for making the computer used as a server device connected to a network, said program comprising instructions that cause the computer to perform the steps of:
- tallying data received at the server from a plurality of terminal devices through said network, said server device comprising a group list management unit comprising at least a say for terminal devices, the say set to EXISTING during the PT call;
- and
- transmitting counting result data to each of the terminal devices having a say of EXISTING.
A non-transitory computer readable storage medium having computer readable program for operating on a computer for making the computer used as a terminal device connected to a network, said program comprising instructions that cause the computer to perform the steps of:
- transmitting data to a server connected through said network during a PTT call, said server comprising a group list management unit comprising at least a say for terminal devices, the say set to EXISTING during the PTT call;
- and
- receiving counting result data from said server and outputting the counting result data to terminal devices, each terminal device having a say of EXISTING in the group list management unit.
Dependencies are inferred from the claim text.