Data distribution system
First Claim
1. A data distribution system for distributing multicast data sent from a transmit terminal connected to a second network incapable of multicast transmission, to multiple receive terminals connected to a first network capable of multicast transmission, wherein:
- said system comprises a distribution device for distributing data sent from said transmit terminal to said multiple receive terminals;
said distribution device comprises;
information for said transmit terminal and, a linking information storage means for linking destination information for distributing data to said multiple receive terminals with said transmit terminal information;
a control packet receive means for receiving a control packet from said receive terminal requesting the distribution of data; and
a data transmit request means for searching said corresponding information based on said request for data distribution and requesting transmit of data to said transmit terminal.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed is system for multicast distribution of stream data containing audio and video to a multicast network by way of a unicast network. System is comprised of a distribution device to distribute data sent from a transmit terminal to multiple receive terminals. The distribution device is comprised of information from the transmit terminal, a storage means for storing information linked to address information for distributing data to multiple receive terminals, a data distribution request-receive means to receive a request for data distribution from a receive terminal, and a data transmit-request means to search the linked information based on the data request-receive means and receive a request for transmission of data to the transmit terminal.
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Citations
24 Claims
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1. A data distribution system for distributing multicast data sent from a transmit terminal connected to a second network incapable of multicast transmission, to multiple receive terminals connected to a first network capable of multicast transmission, wherein:
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said system comprises a distribution device for distributing data sent from said transmit terminal to said multiple receive terminals;
said distribution device comprises;
information for said transmit terminal and, a linking information storage means for linking destination information for distributing data to said multiple receive terminals with said transmit terminal information;
a control packet receive means for receiving a control packet from said receive terminal requesting the distribution of data; and
a data transmit request means for searching said corresponding information based on said request for data distribution and requesting transmit of data to said transmit terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A data distribution device for distributing multicast data sent from a transmit terminal connected to a second network incapable of multicast transmission, to multiple receive terminals connected to a first network capable of multicast transmission, wherein:
said data distribution device comprises;
information for said transmit terminal and, a linking information storage means for linking destination information for distributing data to said multiple receive terminals with said transmit terminal information;
a control packet receive means for receiving a control packet from said receive terminal requesting the distribution of data; and
a data transmit request means for searching said corresponding information based on said request for data distribution and requesting transmit of data to said transmit terminal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A data communication method utilized in a data distribution system comprising a data distribution device for distributing data sent from a transmit terminal connected to a second network incapable of multicast transmission, to multiple receive terminals connected to a first network capable of multicast transmission and, distributing data sent from said transmit terminal in multicast to said multiple receive terminals, wherein:
said distribution device stores linking information for linking said transmit terminal information with destination information for distributing data to said multiple receive terminals, receives control packets requesting said data distribution from said receive terminal, and searches said corresponding information based on said request for data distribution and requests transmit of data to said transmit terminal. - View Dependent Claims (22, 23, 24)
Specification