Electronic Programme Guide Software for Mobile DAB Receivers
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Solution Overview
Problem
Conventional DAB receivers in mobile communications devices are inflexible and require replacement when new DAB protocols are introduced, leading to issues with decoding and displaying video and audio channels, and they consume excessive processing power, which limits battery life and efficiency in updating electronic programme guides.
Innovation Solution
A method and device that processes sub-channels to generate an electronic programme guide by extracting informational elements, storing them in a searchable data record, and allowing re-indexing and background updates, utilizing shared resources with the operating system to efficiently manage and display DAB content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional DAB receivers use dedicated hardware decoding, then decoding reliability is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent replaces dedicated hardware decoding mechanisms with software-based decoding using a media player application. The media player includes a protocol identification module and decoding module that can dynamically adapt to different DAB protocols through software updates, eliminating the need for complex hardware replacement when protocols change.
Solution Approach 2:
The media player application serves multiple functions: it identifies different DAB protocols, decodes various protocol types, and manages electronic programme guide data. This multi-functional software approach consolidates what would otherwise require separate dedicated hardware components for each function.
2Reliability
If conventional DAB receivers use dedicated hardware, then protocol compatibility is maintained, but adaptability to new protocols deteriorates
Solution Approach 1:
The system employs dynamic protocol identification and adaptation. The media player's protocol identification module detects the DAB protocol type in real-time, and the decoding module dynamically adjusts its processing based on the identified protocol, allowing the same hardware to adapt to different protocols without replacement.
Solution Approach 2:
The patent changes the software parameters and processing methods within the media player to accommodate different DAB protocols. By modifying the decoding algorithms and protocol handling parameters through software updates, the system maintains compatibility with new protocols without hardware changes.
3Productivity
If conventional DAB receivers process EPG data in foreground, then processing speed is improved, but battery life deteriorates
Solution Approach 1:
The patent implements periodic background processing where the media player periodically updates electronic programme guide data without requiring user interaction or foreground execution. This allows EPG data to be refreshed at intervals using minimal power, rather than continuous high-power processing.
Solution Approach 2:
The system performs self-service by automatically managing EPG data updates in the background without user intervention. The media player autonomously identifies, downloads, and processes EPG data, freeing the user interface and reducing the need for energy-intensive foreground operations.
Data Source
Figure 1a~1b
Figure 1c
Figure 1d
AI summary
In a mobile communications device, a method of processing data received from digital audio broadcast receiver hardware to generate an electronic programme guide for the content provided by a plurality of sub-channels received by said receiver, the method comprising: i) processing each file containing electronic programme information for a plurality of programmes within a predetermined period of time to extract at least one relevant informational element relating to a characteristic of each of said plurality of individual programmes; ii) generating a data record for each individual programme, the data record having a structure which includes at least one said informational element as a searchable index enabling subsequent retrieval of said information; iii) storing each said data record received in a data store, wherein said data store is configured to be searchable using said one or more indices.