Digital broadcasting system for providing program and data to a vehicle
First Claim
1. A digital broadcasting system comprising:
- a digital broadcasting transmission apparatus for broadcasting data groups; and
a digital broadcasting receive apparatus for receiving said data groups;
wherein the digital broadcasting data groups contain in a multiplexed form;
ordinary data to be broadcasted as present programs;
identification data for identifying the data broadcasted in the past or that is to be broadcasted in the future; and
index data multiplexed to ensure that said identification data for identifying the data broadcasted in the past or that is to be broadcasted in the future is associated with the time of broadcast and the storage location permitting downloading of the broadcast data, thereby forming the data groups for digital broadcasting;
wherein the index data is repeatedly broadcast; and
wherein said digital broadcasting receive apparatus comprises;
a data receiving means for receiving said digital broadcasting data groups;
a data storage means for storing said ordinary data and said index data separately from each other, obtained from the received digital broadcasting data;
an input means for receiving a request for downloading the broadcasting data;
a data control means for searching a storage location permitting downloading of broadcasting data, when said broadcasting data requested to be downloaded is not stored in said storage means, by referencing the index data corresponding to the requested broadcasting data, and for capturing the broadcasting data from said storage location through the network; and
a distribution means for sending the data requested to be downloaded, to the requested destination.
1 Assignment
0 Petitions
Accused Products
Abstract
Ordinary data groups and index information indicating data names and memory locations of broadcasted data are transmitted in multiplex mode from the data broadcasting station 101, and received by the onboard terminal 103 and/or the information service station 104 through the data distribution part 102. The onboard terminal 103 detects the information which it does not hold by referring to the index information, and presents a list of data names at the onboard display part 133. The service station 104 stores separately the data groups and the index information provided from the broadcasting station 101, and in response to the download request from the onboard 103, it examines whether the required data is located in SS memory part 147 by referring to the index data, and captures the required data from external memory locations defined in the index information if the required data is not stored.
70 Citations
11 Claims
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1. A digital broadcasting system comprising:
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a digital broadcasting transmission apparatus for broadcasting data groups; and a digital broadcasting receive apparatus for receiving said data groups; wherein the digital broadcasting data groups contain in a multiplexed form; ordinary data to be broadcasted as present programs; identification data for identifying the data broadcasted in the past or that is to be broadcasted in the future; and index data multiplexed to ensure that said identification data for identifying the data broadcasted in the past or that is to be broadcasted in the future is associated with the time of broadcast and the storage location permitting downloading of the broadcast data, thereby forming the data groups for digital broadcasting; wherein the index data is repeatedly broadcast; and wherein said digital broadcasting receive apparatus comprises; a data receiving means for receiving said digital broadcasting data groups; a data storage means for storing said ordinary data and said index data separately from each other, obtained from the received digital broadcasting data; an input means for receiving a request for downloading the broadcasting data; a data control means for searching a storage location permitting downloading of broadcasting data, when said broadcasting data requested to be downloaded is not stored in said storage means, by referencing the index data corresponding to the requested broadcasting data, and for capturing the broadcasting data from said storage location through the network; and a distribution means for sending the data requested to be downloaded, to the requested destination. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification