Recording Contents Group Information for Broadcasting Data

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Solution Overview

Problem

Conventional recorders for BS digital broadcasting do not effectively manage combinations of multiple content types and require decryption of management information, making it inconvenient to access recorded content attributes.

Innovation Solution

An information recording apparatus that generates and records contents group information, including identification and type information, separate from the broadcasting information, allowing recognition of content combinations without reproducing the broadcasting information, using correlation information from descriptors in BS digital broadcasting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If management information is recorded as part of broadcasting information, then the information is stored together with the content, but it requires decryption before accessing the management information, reducing user convenience

Engineering Contradiction:

Improveintegrity of management informationVSAvoidconvenience of accessing content attributes

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent separates management information from broadcasting information by recording them in different locations. Management information is stored in a dedicated management information recording area, while broadcasting information is stored in a separate broadcasting information recording area. This segmentation allows users to access management information without decrypting broadcasting information, improving convenience while maintaining integrity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent extracts management information from the broadcasting information stream and stores it separately. By taking out the management information (such as content attributes, metadata, and control data) from the encrypted broadcasting content, the system enables direct access to these attributes without requiring decryption of the entire broadcasting information.

Inventive Principle:

Principle #2Taking out (Extraction)

2Adaptability or versatility

If conventional recorders store broadcasting information as is, then all content types are recorded, but it is difficult to recognize content combinations without reproducing the broadcasting information

Engineering Contradiction:

Improveability to handle multiple content typesVSAvoidtime required to identify content attributes

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent performs preliminary processing by extracting and storing management information about content attributes and combinations before reproduction occurs. The system pre-analyzes the broadcasting information to identify content types, relationships, and attributes, storing this metadata separately. This preliminary action eliminates the need to reproduce broadcasting information just to identify its contents, saving time while maintaining versatility in handling multiple content types.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent introduces management information as an intermediary between the user and the broadcasting information. This intermediary layer provides a summary and classification of content attributes, allowing users to quickly identify content combinations without directly examining or reproducing the actual broadcasting content. The management information acts as a mediator that bridges the gap between diverse content types and user information needs.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS7778517B2Information recording device, information reproduction device, information recording method, information reproduction method, information recording program, information reproduction program, and information recording medium

Publication Date: 2010.08.17 SHARP KK

AI summary

An information recording apparatus is provided whereby in the reproduction of broadcasting information, the broadcasting information can be recorded so that the combination and so on of contents included in the broadcasting information can be recognized without the need for reproducing the broadcasting information itself.An information recording apparatus for recording broadcasting information constituted of a packet which has a predetermined amount of information and includes different types of contents, each type including one or more contents, the apparatus including a controller 8. The controller 8 generates contents group information based on correlation information which is included in the received broadcasting information and indicates a correlation between the contents, the contents group information including identification information for identifying the relationship between the packet and the content and type information indicating the type of the content, the contents group information indicating a contents group to include the one or more contents, and the controller 8 records the generated contents group information on a hard disk 1 with the broadcasting information.