Audio/video data transfer system, audio/video data transfer method, and audio/video server
First Claim
1. An audio/video data transfer system comprising:
- a first audio/video server;
a second audio/video server to which audio/video data is transferred from said first audio/video server;
first control means for controlling said first audio/video server;
second control means for controlling said second audio/video server and being capable of mutually communicating with said first control means; and
communicating means for transferring said audio/video data between said first and second audio/video servers, wherein upon transfer of said audio/video data by said communicating means, said first control means notifies said first audio/video server of a communication port by which said first audio/video server can transfer said audio/video data through said communicating means and notifies said second control means of said notified communication port, and said second control means sets said communication port notified from said first control means into said second audio/video server and directly transfers said audio/video data from said first audio/video server to said second audio/video server by using said set communication port.
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Accused Products
Abstract
The invention relates to an audio/video data transfer system, an audio/video data transfer method, and an audio/video server for enabling audio/video data to be easily transferred between the audio/video servers. Video servers 1 and 3 connected by the Internet are constructed as FTP servers. When AV data is transferred from the server 1 to the server 3, a computer apparatus 2 for controlling the server 1 communicates with a computer apparatus 4 for controlling the server 3 and discriminates whether the server 3 can receive the transferred AV data or not. If it can be received, the computer 2 sends a command “PASV” to the server 1 and allows an IP address of an empty communication port of the server 1 to be notified. The IP address is transmitted to the computer 4. On the basis of the IP address, a command “PORT” is sent to the server 3 and a communication port of the server 3 is set. The AV data reproduced by the server 1 under control of the computer 2 is transmitted from the IP address notified by “PASV”. The AV data is received by the server 3 on the basis of the setting of the communication port in the “PORT”.
57 Citations
24 Claims
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1. An audio/video data transfer system comprising:
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a first audio/video server;
a second audio/video server to which audio/video data is transferred from said first audio/video server;
first control means for controlling said first audio/video server;
second control means for controlling said second audio/video server and being capable of mutually communicating with said first control means; and
communicating means for transferring said audio/video data between said first and second audio/video servers, wherein upon transfer of said audio/video data by said communicating means, said first control means notifies said first audio/video server of a communication port by which said first audio/video server can transfer said audio/video data through said communicating means and notifies said second control means of said notified communication port, and said second control means sets said communication port notified from said first control means into said second audio/video server and directly transfers said audio/video data from said first audio/video server to said second audio/video server by using said set communication port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An audio/video data transfer method comprising:
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a first control step of controlling a first audio/video server;
a second control step of controlling a second audio/video server to which audio/video data is transferred from said first audio/video server and being capable of mutually communicating with said first control step; and
a communicating step of transferring said audio/video data between said first and second audio/video servers, wherein upon transfer of said audio/video data by said communicating step, said first control step notifies said first audio/video server of a communication port by which said first audio/video server can transfer said audio/video data through said communicating step and notifies said second control step of said notified communication port, and said second control step sets said communication port notified from said first control step into said second audio/video server and directly transfers said audio/video data from said first audio/video server to said second audio/video server by using said set communication port. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24)
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17. An audio/video server comprising:
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communicating means capable of transferring audio/video data to an outside and receiving the audio/video data transferred from the outside in accordance with a predetermined communicating protocol;
encoding means for encoding said audio/video data by a predetermined system;
decoding means for decoding said audio/video data encoded by said predetermined system;
storing means for storing said audio/video data; and
control means for monitoring installing states of said communicating means, said encoding means, and said decoding means upon transfer of said audio/video data by said communicating means and controlling said transfer of said audio/video data on the basis of said installing states.
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Specification