Automated Channel Updating via Frequency Table Lookup
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Solution Overview
Problem
Existing auto update systems for display apparatuses, such as TVs, are time-consuming, decreasing user convenience due to the inefficiency in updating channel lists and assigning unused channel numbers to detected frequencies.
Innovation Solution
A method and system for automated channel updating that detects frequencies carrying channel data, determines if the frequency is in the channel list by retrieving a frequency table, and assigns an unused channel number by executing a channel number assigning operation, which includes default frequency assignment and caching, ensuring efficient channel number allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the traditional auto update method is used to search for frequencies and update channel lists, then the channel list can be updated, but the process is time-consuming and decreases user convenience
Solution Approach 1:
The patent stores frequency information in advance during factory calibration or initial setup, creating a frequency table that maps frequencies to channel numbers. When updating channels, the system directly queries this pre-stored frequency table instead of performing time-consuming frequency searches, significantly reducing update time while maintaining complete channel list accuracy
Solution Approach 2:
The patent creates a frequency table that copies and stores frequency information from the original channel configuration. This frequency table serves as a reference copy that can be quickly queried during channel updates, avoiding the need to re-detect frequencies each time and thus reducing update time while preserving update completeness
2Reliability
If the system performs a comprehensive frequency search to ensure all channels are updated, then channel update completeness is achieved, but the operation becomes time-consuming
Solution Approach 1:
Frequency information is pre-stored in a frequency table during initial system setup or factory calibration. During channel updates, the system directly queries this pre-populated frequency table to determine which frequencies are already in the channel list, eliminating the need for time-consuming frequency searches while ensuring complete and accurate channel updates
Solution Approach 2:
The system dynamically adapts its update approach by first checking the pre-stored frequency table to identify frequencies already present in the channel list. Only frequencies not found in the table undergo detection and assignment, making the update process efficient and adaptive rather than performing comprehensive searches on all frequencies each time
3Ease of operation
If the system assigns channel numbers sequentially after detection, then channel number allocation is systematic, but the process adds time to the update operation
Solution Approach 1:
The frequency table is pre-populated with frequency-to-channel-number mappings during initial system setup. When updating channels, the system queries this pre-established mapping to quickly determine appropriate channel numbers for detected frequencies, maintaining systematic allocation without the time penalty of sequential assignment algorithms
Data Source
AI summary
A method for automated channel updating is provided. In step (a), a frequency carrying channel data is detected. In step (b), it is determined whether a channel list comprises the frequency by retrieving a frequency table, where the frequency table stores information indicating whether the frequency is comprised in the channel list, and the channel list records a mapping relationship between a channel number and the frequency. In step (c), an unused channel number in the channel list is assigned to the detected frequency not in the channel list, where the unused channel number does not map to the frequency.