Receiving Device NRT Content Download Control
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Solution Overview
Problem
Existing digital television broadcasting systems face challenges in providing on-demand viewing for non-real-time (NRT) content due to unidirectional transmission, making it difficult to implement advanced broadcasting services like on-demand viewing without bidirectional communication.
Innovation Solution
A receiving device and method that include a first receiving section for downloading and recording NRT AV contents, an obtaining section for retrieving an application program, and an executing section that manages processes based on control information within the application program, enabling functions such as reservation, cancellation, and state management of downloads, allowing for on-demand viewing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If application programs are provided by multiple entities other than the broadcaster, then the versatility and functionality of NRT content services are improved, but the complexity of managing and executing these programs across different entities increases
Solution Approach 1:
The patent implements a universal control system using standardized HTML documents and application programs that can be executed across multiple entities (broadcasters and third-party providers) without requiring entity-specific implementations. The receiving device runs a common browser-based execution environment that handles NRT content from any source uniformly, allowing one program structure to serve multiple functions and entities.
Solution Approach 2:
The patent changes the management approach from entity-specific program handling to a standardized parameter-based control system where HTML documents and application programs use common syntax, tags, and execution parameters. This allows the system to manage diverse NRT content services through unified parameters and control mechanisms rather than entity-specific implementations.
2Ease of operation
If on-demand viewing is implemented in unidirectional transmission broadcasting, then user convenience and service quality are improved, but the system complexity and difficulty of implementation increase
Solution Approach 1:
The patent implements preliminary action by allowing users to reserve download times for NRT content in advance. The receiving device receives broadcast signals, identifies NRT content based on signaling information, and schedules automatic downloads at predetermined times without requiring real-time user interaction. This preliminary reservation mechanism enables on-demand viewing capability while maintaining unidirectional transmission simplicity.
Solution Approach 2:
The system implements self-service automation where the receiving device automatically manages NRT content downloads based on user reservations. The device autonomously receives broadcast signals, processes signaling information to identify NRT content, executes downloads at scheduled times, and manages stored content without requiring continuous user intervention or complex bidirectional communication protocols.
3Adaptability or versatility
If HTML documents are created for each entity providing application programs, then the adaptability to different providers is improved, but the lack of a common control system reduces operational efficiency
Solution Approach 1:
The patent creates a universal control system where a single standardized HTML document format and application program structure can be used by all entities (broadcasters and third-party providers). The receiving device's browser execution environment processes all NRT content uniformly regardless of source, eliminating the need for entity-specific document variations while maintaining full adaptability to different providers through the standardized interface.
Data Source
AI summary
Disclosed herein is a receiving device including: a first receiving section configured to receive audio visual contents capable of a download reservation and transmitted in non-real time; a recording section configured to record the audio visual contents that have been downloaded; an obtaining section configured to obtain an application program for executing a process related to the audio visual contents; and an executing section configured to execute the process related to the audio visual contents on a basis of control information included in the application program.