JP2003263380A5

JP2003263380A5 -

Info

Publication number: JP2003263380A5
Application number: JP2002357091A
Authority: JP
Filing date: 2002-12-09
Publication date: 2005-08-18
Anticipated expiration: 2018-02-03

Claims

In a transmission device that transmits data for providing content registered in a database,
When the content registered in the database is updated, update data for updating the content is generated, to which identification information for identifying the content updated by the update data is added. Update data generation means;
Acquisition data generating means for acquiring the update data, wherein the identification data of the content to be updated by the update data acquired based on the acquisition data is added.
Allocating means for allocating resources for transmitting the update data and acquisition data via the first transmission path;
A transmission apparatus comprising: first transmission means for transmitting the update data and acquisition data via the first transmission path in accordance with resource allocation by the allocation means .

In the case where the first transmission means transmits the update data via a one-way broadcast network capable of simultaneous broadcast,
The acquired data generation means adds reception necessary information necessary for receiving the update data transmitted via the broadcast network to the update data based on resource allocation by the allocation means. Include in the acquired data to which the same identification information is added
The transmission apparatus according to claim 1, wherein:

Second transmission means for transmitting the update data via a second transmission path
Further comprising
When the second transmission means transmits the update data via the bidirectional network in response to the request for the update data transmitted via the bidirectional network capable of bidirectional communication. In
The acquisition data generation means includes the acquisition data to which the same information as the identification information added to the update data is added as required information necessary for requesting the update data via the bidirectional network. Include in
The transmission apparatus according to claim 1, wherein:

In the case where the first transmission means transmits the update data via a one-way broadcast network capable of simultaneous broadcast,
In addition to the request necessary information, the acquisition data generation means also includes reception necessary information necessary for receiving the update data transmitted via the broadcast network based on resource allocation by the allocation means. Included in the acquired data to which the same identification information added to the update data is added
The transmission apparatus according to claim 3.

The update data is received and stored, and the update data is transmitted via the bidirectional network in response to the update data request transmitted via the bidirectional network capable of bidirectional communication. When there is an information processing device that
The acquired data generation means has the required information necessary for requesting the update data to the information processing apparatus via the bidirectional network, the same as the identification information added to the update data. To be included in the acquired data
The transmission apparatus according to claim 1, wherein:

In the case where one or more information processing apparatuses exist,
In response to the request for the update data transmitted via a bidirectional network capable of bidirectional communication, further comprising second transmission means for transmitting the update data via the bidirectional network,
The acquired data generation means provides the required data necessary for requesting the update data via the bidirectional network to the one or more information processing apparatuses or the second transmission means, and the update data The acquired data to which the same identification information added to Include in
The transmitting apparatus according to claim 5, wherein:

In the case where there are a plurality of receiving devices that receive the acquired data and request the update data to the one or more information processing devices or the second transmission unit based on the acquired data,
The acquired data generation means is a request destination information regarding which of the one or more information processing apparatuses or the second transmission means each of the plurality of receiving apparatuses should request the update data from, or the update Request timing information regarding when to request data is also included in the acquired data
The transmission apparatus according to claim 6.

In the case where the information processing apparatus exists and the first transmission means transmits the update data via a one-way broadcast network capable of simultaneous broadcast,
In addition to the request necessary information, the acquisition data generation means also includes reception necessary information necessary for receiving the update data transmitted via the broadcast network based on resource allocation by the allocation means. Included in the acquired data to which the same identification information added to the update data is added
The transmitter according to claim 5, wherein

The update data includes information for reflecting changes to the updated content in the updated content or the content before the update.
The transmission apparatus according to claim 1, wherein:

In a data transmission method for providing content registered in a database,
When the content registered in the database is updated, update data for updating the content is generated, to which identification information for identifying the content updated by the update data is added. Along with the acquisition data for acquiring the update data, the one added with the identification information of the content updated by the update data acquired based on the acquisition data,
Assigning resources for transmitting the update data and acquisition data via a predetermined transmission path;
According to the resource allocation, the update data and acquisition data are transmitted via the predetermined transmission path.
A transmission method characterized by the above.

In a receiving apparatus for receiving data for receiving provision of content registered in a database,
When the content registered in the database is updated, it is acquisition data for acquiring update data for performing the update, and the resource for transmitting the update data via a predetermined transmission path Receiving means for receiving information necessary for receiving the update data generated based on the assignment, and having added identification information for identifying the content updated by the update data; ,
Based on the acquisition data, an acquisition means for acquiring the update data to which the same identification information as that added thereto is added;
Updating means for updating the content corresponding to the identification information added thereto by the update data;
A receiving apparatus comprising:

The update data is transmitted via a one-way broadcast network capable of simultaneous broadcast, and the acquired data is based on allocation of resources for transmitting the update data via the broadcast network. In the case of including the reception necessary information generated by
The acquisition means is transmitted via the broadcast network based on the reception necessary information. Get the updated data
The receiving apparatus according to claim 11.

The acquisition means includes
Receiving means for receiving the update data transmitted via the broadcast network;
In the case where the reception required information includes a transmission time at which the update data is transmitted, when the reception unit is not in an operable state at the transmission time, the reception unit is set in an operable state. Do
The receiving device according to claim 12.

The update data is transmitted via a bidirectional network capable of bidirectional communication in response to the update data request, and the acquired data is transmitted via the bidirectional network. In the case of including necessary information necessary for requesting,
The acquisition means requests the update data via the bidirectional network based on the request required information, and acquires the update data transmitted via the bidirectional network in response to the request. Do
The receiving apparatus according to claim 11.

In response to a request for the update data from the acquisition unit, when there is one or more information processing apparatuses that transmit the update data,
The acquired data also includes request destination information regarding which of the one or more information processing devices should request the update data, or request timing information regarding when the request data should be requested,
The acquisition unit requests the update data from the one or more information processing apparatuses corresponding to the request destination information or at a timing corresponding to the request timing information.
The receiving apparatus according to claim 14.

The acquisition unit is configured to transmit the acquisition data and the update data to the transmission apparatus or the information processing apparatus that receives and stores the update data transmitted from the transmission apparatus via the bidirectional network. Request update data
The receiving apparatus according to claim 14 .

The update data is transmitted via a one-way broadcast network capable of simultaneous broadcast, and is transmitted via a bidirectional network capable of two-way communication in response to the update data request. And the acquisition data includes the reception necessary information generated based on allocation of resources for transmitting the update data via the broadcast network, and the update data via the bidirectional network. In the case of including required information necessary for requesting data,
The acquisition means acquires the update data transmitted via the broadcast network based on the reception necessary information, or via the bidirectional network based on the request necessary information, Request update data, and acquire the update data transmitted via the bidirectional network in response to the request
The receiving apparatus according to claim 11.

The acquisition means determines whether to acquire the update data transmitted via the broadcast network or the bidirectional network, the size of the update data, or the update data via the bidirectional network. To select based on how often
The receiving apparatus according to claim 17.

It further comprises an operating means that is operated when a predetermined input is given,
The acquisition unit selects, based on an operation of the operation unit, whether to acquire the update data transmitted via the broadcast network or the bidirectional network.
The receiving apparatus according to claim 17.

The update data includes information for reflecting changes to the updated content in the updated content or the content before the update.
The receiving apparatus according to claim 11.

In the case where the update data includes information for reflecting changes to the updated content in the content before the update,
The update means reflects the changed content to the updated content in the content before the update based on the information included in the update data.
The receiving device according to claim 20.

In the data receiving method for receiving the provision of contents registered in the database,
When the content registered in the database is updated, it is acquisition data for acquiring update data for performing the update, and the resource for transmitting the update data via a predetermined transmission path Receiving information necessary for receiving the update data generated on the basis of the assignment, to which identification information for identifying the content to be updated by the update data is added;
Based on the acquired data, acquire the update data to which the same identification information added to it is added,
The content corresponding to the identification information added thereto is updated by the update data.
And a receiving method.

A transmission device for transmitting data for providing content registered in the database;
A receiving device for receiving data from the transmitting device;
In a transmission / reception system comprising:
The transmitter is
When the content registered in the database is updated, update data for updating the content is generated, to which identification information for identifying the content updated by the update data is added. Update data generation means;
Acquisition data generating means for acquiring the update data, wherein the identification data of the content to be updated by the update data acquired based on the acquisition data is added.
Allocating means for allocating resources for transmitting the update data and the acquired data via a predetermined transmission path;
Transmitting means for transmitting the update data and the acquired data via the predetermined transmission path according to the resource allocation by the allocation means;
Have
The receiving device is:
Receiving means for receiving the acquired data;
Based on the acquisition data, an acquisition means for acquiring the update data to which the same identification information as that added thereto is added;
Updating means for updating the content corresponding to the identification information added thereto by the update data;
Have
A transmission / reception system characterized by that.

A transmission device for transmitting data for providing content registered in the database;
A receiving device for receiving data from the transmitting device;
In a transmission / reception method of a transmission / reception system comprising:
In the transmitter,
When the content registered in the database is updated, update data for updating the content is generated, to which identification information for identifying the content updated by the update data is added. Along with the acquisition data for acquiring the update data, the one added with the identification information of the content updated by the update data acquired based on the acquisition data,
Assigning resources for transmitting the update data and acquisition data via a predetermined transmission path;
According to the resource allocation, the update data and the acquisition data are transmitted via the predetermined transmission path,
In the receiving device,
Receiving the acquired data;
Based on the acquired data, acquire the update data to which the same identification information added to it is added,
The content corresponding to the identification information added thereto is updated by the update data.
A transmission / reception method characterized by the above.