Two-way information transmission system and two-way information transmission method
First Claim
1. A two-way information transmission system comprising:
- an information distribution transmission center and a plurality of subscriber terminals connected to said information distribution transmission center through going-up lines and going-down lines, in which at least one of said plurality of subscriber terminals requests information from said information distribution transmission center through said going-up lines by an information distribution transmission request, and said information distribution transmission center transmits the information requested in response to said information distribution transmission request;
each one of said plurality of subscriber terminals including;
distribution transmission request sending means for sending said information distribution transmission request including at least information for identifying a demand subscriber terminal, information for identifying said requested information, and information relating to an urgency of said requested information,memory means,transmission plan receiving analysis means for being informed of a transmission plan based on going-down control data transmitted along said going-down lines from said information distribution transmission center,information acquisition means for acquiring the information transmitted from said information distribution transmission center based on said transmission plan and storing it in said memory means, which said information was acquired by said transmission plan receiving analysis means,reading means for reading the information from said memory means, andsaid information distribution transmission center including;
transmission planning means for planning said transmission plan to transmit the information based on said information distribution transmission request from said at least one of said plurality of subscriber terminals,transmission implementation means for implementing the transmission of said requested information based on the transmission plan planned by said transmission planning means,going-down control data sending means for sending said going-down control data including information involving the transmission implementation plan planned by said transmission implementation means to said at least one of said plurality of subscriber terminals which sent said information distribution transmission request before said transmission implementation means implements the transmission, andcharging means for charging for a distribution transmission based on the information relating to the urgency of a distribution transmission of said requested information included in said information distribution transmission request from said at least one of said plurality of subscriber terminals.
1 Assignment
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Accused Products
Abstract
A subscriber terminal ms sends the demand including at least information for identifying the demand subscriber terminal, information for identifying the requested information, and information relating to the urgency of the requested information to the information distribution transmission center HE through the going-up line. The information distribution transmission center HE plans a transmits information requested according to the transmission schedule of the information based on this demand, and transmits the transmission schedule information included in the going-down control data to the subscriber terminal which sent the demand prior to the actual transmission, and transmits the requested information according to the above-mentioned transmission schedule. The subscriber terminal ms receives and analyzes the going-down control data from the information distribution transmission center HE and is informed of the transmission schedule, and acquires the information to be transmitted based on the obtained transmission plan, stored it in a large scale memory, and reads the information from the memory. A video on-demand system can be realized with a relatively small investment, and the centralization of traffic is mitigated, the network resource is used efficiently, and rational charging is enabled.
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Citations
10 Claims
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1. A two-way information transmission system comprising:
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an information distribution transmission center and a plurality of subscriber terminals connected to said information distribution transmission center through going-up lines and going-down lines, in which at least one of said plurality of subscriber terminals requests information from said information distribution transmission center through said going-up lines by an information distribution transmission request, and said information distribution transmission center transmits the information requested in response to said information distribution transmission request; each one of said plurality of subscriber terminals including; distribution transmission request sending means for sending said information distribution transmission request including at least information for identifying a demand subscriber terminal, information for identifying said requested information, and information relating to an urgency of said requested information, memory means, transmission plan receiving analysis means for being informed of a transmission plan based on going-down control data transmitted along said going-down lines from said information distribution transmission center, information acquisition means for acquiring the information transmitted from said information distribution transmission center based on said transmission plan and storing it in said memory means, which said information was acquired by said transmission plan receiving analysis means, reading means for reading the information from said memory means, and said information distribution transmission center including; transmission planning means for planning said transmission plan to transmit the information based on said information distribution transmission request from said at least one of said plurality of subscriber terminals, transmission implementation means for implementing the transmission of said requested information based on the transmission plan planned by said transmission planning means, going-down control data sending means for sending said going-down control data including information involving the transmission implementation plan planned by said transmission implementation means to said at least one of said plurality of subscriber terminals which sent said information distribution transmission request before said transmission implementation means implements the transmission, and charging means for charging for a distribution transmission based on the information relating to the urgency of a distribution transmission of said requested information included in said information distribution transmission request from said at least one of said plurality of subscriber terminals. - View Dependent Claims (2, 3, 4, 5)
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6. A method of two-way information transmission comprising the steps of:
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sending an information distribution transmission request from a subscriber terminal including at least information for identifying said subscriber terminal, information for identifying requested information, and information relating to an urgency of said requested information to the information distribution transmission center through a going-up line, planning a transmission schedule of the information to be transmitted based on said information distribution transmission request from said subscriber terminal by said information distribution transmission center, transmitting the information to the subscriber terminal which requested said information distribution transmission request including the transmission schedule information in a going-down control data prior to the transmission of main information, implementing transmission of said requested information through a going-down line according to said transmission schedule, performing charging for the transmission based on the information on the urgency of said information transmission, informing said subscriber terminal of said transmission plan by receiving and analyzing said going-down control data from said information distribution transmission center, acquiring the information transmitted from said information distribution transmission center based on the acquired transmission plan, storing the information transmitted from said information distribution transmission center in a memory means having a large capacity, and providing an information read from said memory means. - View Dependent Claims (7, 8, 9, 10)
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Specification