SERVER APPARATUS, COMMUNICATION METHOD AND PROGRAM
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed is a server apparatus that receives a stream containing at least a video signal from a first one of two or more terminals that take part to form a group of terminals, copies the received stream or packet in part or entirety thereof, and transmits the so copied stream or packet to those terminals that are different from the first terminal, includes a control packet generation/transmission unit which, in case other terminal takes part anew in the group of terminals halfway during the time of transmitting the copied stream or packet, transmits to the first terminal a command which orders the first terminal to transmit a non-predictive frame.
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Citations
19 Claims
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1-9. -9. (canceled)
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10. A server apparatus comprising:
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a reception unit that receives a stream or a packet including at least a video signal and transmitted from a first terminal of a plurality of terminals that take part to form a group of terminals; a copying unit that copies the stream or packet in part or entirety thereof; and a transmission unit that transmits the copied stream or packet to one or more of the terminals different from the first terminal; and
a control unit that transmits to the first terminal a command which orders the first terminal to transmit a non-predictive video frame to the server apparatus, in case another terminal takes part anew in the group of terminals halfway during the time of transmitting the copied stream or packet. - View Dependent Claims (11, 12, 19)
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13. A method for communication comprising:
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a server apparatus receiving a stream or a packet including at least a video signal and transmitted from a first terminal of a plurality of terminals that take part to form a group of terminals; the server apparatus copying the received stream or packet received in part or entirety thereof; the server apparatus transmitting the copied stream or packet to one or more of the terminals different from the first terminal; and the server apparatus transmitting to the first terminal a command which orders the first terminal to transmit a non-predictive frame to the server apparatus, in case another terminal takes part anew in the group of terminals halfway during the time of transmitting the copied stream or packet. - View Dependent Claims (14, 15)
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16. A computer-readable recording medium storing a program that causes a server apparatus to execute processing comprising:
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receiving a stream or a packet including at least a video signal and transmitted from a first terminal of a plurality of terminals that take part to form a group of terminals; copying the stream or packet in part or entirety thereof;
transmitting the copied stream or packet to one or more of the terminals different from the first terminal; andtransmitting to the first terminal a command which orders the first terminal to transmit a non-predictive video frame to the server apparatus, in case another terminal takes part anew in the group of terminals halfway during the time of transmitting the copied stream or packet. - View Dependent Claims (17, 18)
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Specification