Logical Channel Number Parsing via Operator Configuration Tables
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Solution Overview
Problem
The complexity of logical channel number parsing in digital televisions and set-top boxes arises from the need for different parsing algorithms for various operators, each with its own logical channel number regulation, making the process cumbersome.
Innovation Solution
A method and device that acquire the operator providing the program signal, search channels based on preset frequency points, extract logical channel number data, and parse it using a prestored configuration table specific to the operator, simplifying the process by standardizing attribute parameter extraction and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different parsing algorithms are adopted for different operators, then the logical channel number parsing can accommodate various operator regulations, but the parsing process becomes complicated
Solution Approach 1:
The patent creates a universal parsing algorithm that can handle multiple operator regulations through a unified configuration table structure. The configuration table stores operator-specific parameters (bit offsets, total bits, shift amounts) that allow the same parsing logic to adapt to different operators without requiring separate algorithms for each operator.
Solution Approach 2:
The patent changes the approach from having different algorithms to having the same algorithm with different parameters. By storing operator-specific parameters (first bit offset, total bits, shift amount) in a configuration table, the system maintains algorithmic simplicity while achieving adaptability through parameter variation.
2Reliability
If multiple parsing algorithms are maintained for different operators, then each operator's specific regulation can be accurately parsed, but the system complexity and maintenance difficulty increase
Solution Approach 1:
The unified configuration table serves multiple operators through a single data structure, eliminating the need for multiple separate parsing algorithms. The table stores all necessary parameters for different operators in a standardized format, allowing one algorithm to reliably parse data from any operator.
Solution Approach 2:
The configuration table acts as an intermediary layer between the parsing algorithm and operator-specific data formats. It translates various operator regulations into a unified internal representation that the parsing algorithm can process consistently, ensuring reliability while maintaining system simplicity.
Data Source
AI summary
Disclosed are a logical channel number parsing method and a logical channel number parsing device. The method includes: acquiring an operator which provides program signal, and searching channels in sequence according to preset frequency points; acquiring channel information of a current frequency point, and extracting logical channel number data from the channel information, when searching channels according to each of the frequency points; and parsing the logical channel number data according to a prestored logical channel number configuration table corresponding to the operator, to obtain each of attribute parameters comprised in the logical channel number data. The present disclosure simplifies the parsing operation of the logical channel number.