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Storage type broadcast system, transmitter and receiver

a broadcast system and transmitter technology, applied in the field of storage-type broadcast systems, transmitters and receivers, can solve the problems of difficult to receive contents, easy to automatically store in receivers, and worse transmission efficiency

Inactive Publication Date: 2007-06-14
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0315] It is possible to perform per-service control from the sending side to the receiving side, and to exclusively control storage areas on the receiving side per service or control the validity term of contents per service.
[0316] It is possible for the receiving side to use service structure information sent from the sending side to perform per-service contents management, control storage areas on the receiving side per service or control the validity term of contents per service.
[0318] By using the service structure information to determine the identity of the contents to be broadcast, it is possible to identify contents via only an identifier to identify a node in the service structure information to be generated on the receiving side without considering the information used by contents providers or broadcast operators to identify contents in data transmission. On the receiving side, it is possible to recognize the contents transmitted between different broadcast stations as the same contents or recognize the pre-installed contents to be the same as the contents about to be broadcast. This makes efficient the storage processing and storage capacity.

Problems solved by technology

In related art storage-based broadcast system s, it is not easily possible to automatically store in a receiver the contents that belong to a service provided by a contents provider, nor set or change the validity term of contents stored in the receiver for each service provided by the contents provider.
This results in transmission of huge data thus worsening the transmission efficiency.
In this way, it is difficult to receive contents with the structure (relationship between contents) intended by the provider maintained.

Method used

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  • Storage type broadcast system, transmitter and receiver
  • Storage type broadcast system, transmitter and receiver
  • Storage type broadcast system, transmitter and receiver

Examples

Experimental program
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Effect test

first embodiment

[0073] In the first embodiment, a broadcast system consisting of a service transmitter 10 and a service receiver 30 will be described referring to FIG. 1. A contents provider groups contents to be provided (classifies contents into services) and passes the contents of each service to a broadcast operator for broadcasting. The service transmitter 10 transmits the contents together with additional information and comprises AV data storage means 18 for storing AV data provided by the contents provider, contents storage means for storing data contents provided by the contents provider, service structure information generating means 11 for generating service structure information containing structure information (service structure information) specifying the relationship between the data provider and the contents and the relationship between services as well as information indicating the type of the structure information, service structure information storage means 15 for storing the ser...

second embodiment

[0160] In the second embodiment, internal processing of a receiver assumed in case a viewing contract (subscription) is made per service.

[0161] When the user has selected an arbitrary node (service) from the user input means 42 of the service receiver 30 to instruct subscription, the service management means 40 activates an application according to the procedure in FIG. 9 and executes the processing in the application to subscribe to the contents that belong to the node.

[0162] The service receiver 30 changes the execution of the selected service (step 2103) in the internal processing after data reception (FIG. 8) as shown in FIG. 17.

[0163] Step 2301: The service receiver 30 determines whether the service to be internally processed is subscribed to or not.

[0164] Step 2302: In case the service is subscribed to, the service receiver 30 performs processing on the service which is subscribed to.

[0165] Step 2303: In case the service is not subscribed to, the service receiver 30 perfor...

third embodiment

[0168] In the third embodiment, a broadcast system where the contents automatically stored on the receiving side can be controlled on the sending side is described.

[0169] A service transmitter in the broadcast system has the same configuration as the service transmitter in FIG. 1. Information indicating whether to automatically store the contents received on the receiving side (automatic storage flag) is input from the contents information input means 12 of the service transmitter 10 (step 1204 in FIG. 4). The automatic storage flag is appended to the contents of service information containing reference information via the service information adding means 14 (step 1405 in FIG. 6). FIG. 20 illustrates service information with the automatic storage flag appended.

[0170] Meanwhile, a service receiver in the third embodiment comprises an automatic storage management means 43 for controlling the data contents receiving means 34 and the AV data receiving means 35 based on the automatic st...

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PUM

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Abstract

Providing a broadcast system wherein storage of contents on the receiving side and use restriction on the stored contents, etc. can be performed per service provided by contents providers. In a storage-based digital broadcast system wherein contents transmitted from a sending side are stored on a receiving side then reproduced, the sending side transmits service structure information for describing relational structure between services provided by contents providers and reference information for associating the contents with the service structure information in advance, and the receiving side receives and stores service structure information and reference information and uses the received service structure information and reference information to manage storage of contents. It is possible to control contents per service based on service structure information and information that can be reorganized from reference information.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a storage-based digital broadcast system that receives and stores data contents and AV (Audio-Visual) contents on the receiving side sent from the sending side and reproduces the data contents and AV contents, etc. in viewing, and a transmitter and a receiver used in the system, and in particular to a storage-based digital broadcast system wherein storage of contents on the receiving side and use restriction on the stored contents, etc. can be controlled per service provided by contents providers, and a transmitter and a receiver used in the system. [0003] 2. Description of Related Art [0004] In digital broadcasts, storage-based broadcast systems have been developed where programs and contents transmitted from the sending side are received and stored on the receiving side and users reproduce to view the programs and contents when it is convenient for them. [0005] In this broadcast sy...

Claims

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Application Information

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IPC IPC(8): H04H1/04H04J3/04H04H20/77H04N5/445H04N5/76H04N7/16H04N7/24
CPCH04N5/76H04N7/162H04N21/235H04N21/2362H04N21/2543H04N21/40H04N21/4147H04N21/4331H04N21/4345H04N21/435H04N21/47H04N21/84Y10S707/99943Y10S707/99945Y10S707/99942H04N7/08
Inventor SHIKATANI, YUKIO
Owner PANASONIC CORP
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