Receiving Device Trigger Information Acquisition for Cable TV Application Control
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Solution Overview
Problem
Existing systems for redistributing AV content via cable TV fail to operate applications concurrently with the content, as they do not utilize the control mechanisms defined in terrestrial broadcasts, leading to a need for techniques to satisfactorily control these applications.
Innovation Solution
A receiving device and method that acquire and utilize trigger information, including location and application control information, to control the operation of applications executed in conjunction with AV content, allowing for timely and cache management of application files.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If AV content is redistributed via cable TV, then content distribution is achieved, but application control functionality is lost
Solution Approach 1:
The patent extracts the application control information from the original broadcast signal and processes it separately in the redistribution system. The trigger information and application control information are acquired and processed independently, then used to control applications in the redistributed content, preserving application functionality while enabling cable TV redistribution.
Solution Approach 2:
The patent introduces an intermediary processing mechanism that receives trigger information from the broadcast signal, acquires corresponding application control information, and executes application control operations. This intermediary layer bridges the gap between content redistribution and application control, allowing both functions to coexist.
2Device complexity
If traditional redistribution systems are used, then system simplicity is maintained, but application operation capability is lost
Solution Approach 1:
The patent performs preliminary acquisition of application control information and trigger information before content redistribution. By preparing and storing the necessary control information in advance, the system can execute application operations without adding complex real-time processing requirements during content delivery.
Solution Approach 2:
The patent creates a multi-functional processing unit that handles both content redistribution and application control operations. This universal processor manages trigger information acquisition, application control information retrieval, and application execution, consolidating multiple functions into a single system component.
Data Source
AI summary
A receiving device, a receiving method, a transmitting device, and a transmitting method. The receiving device acquires a digital broadcast signal that includes audio-video (AV) content and location information, the location information indicating a source from which application control information for controlling an operation of an application executed in conjunction with a progressing timing of the AV content is obtainable, acquires the application control information from the source indicated by the location information, the application control information including an application ID and a uniform resource locator (URL), obtains, from the URL included in the acquired application control information, control information during a polling period that is defined in accordance with an attribute specified in the acquired application control information, and controls the operation of the application based on the acquired application control information and the obtained control information.