Channel Scanning Speed Control for Electronic Devices
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Solution Overview
Problem
Current digital multichannel broadcasting systems are inconvenient for users as they require numerous key inputs and operations to navigate to a desired channel, even with features like favorite channels, due to the need for direct manipulation of keys or use of electronic program guides.
Innovation Solution
An electronic device and method that allows users to quickly scan and select favorite channels using only the channel up/down buttons, reducing the need for numerical inputs or EPG navigation by determining favorite channels based on viewing history and adjusting channel scanning speed accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users directly manipulate keys to shift channels from first channel number to last channel number, then users can obtain program information and shift to desired channel, but users need to perform numerous key inputs and operations which is inconvenient
Solution Approach 1:
The system automatically determines and stores favorite channels based on user viewing history in advance. When a user presses the channel up/down button, the system quickly shifts to these pre-determined favorite channels without requiring manual navigation through all channels, thus reducing both operational steps and time required.
Solution Approach 2:
The system automatically analyzes viewing history and determines favorite channels without requiring explicit user input or manual configuration. The system serves itself by autonomously identifying which channels the user prefers based on their watching patterns, eliminating the need for users to manually set up favorite channel lists.
2Loss of information
If users use electronic program guide to change to desired channel, then users can access program information, but users need to enter EPG and perform additional operations which increases complexity
Solution Approach 1:
The system extracts only the essential function of accessing favorite channels from the complex EPG system. Instead of requiring users to navigate through the entire EPG interface, the system directly provides access to predetermined favorite channels based on viewing history, extracting and delivering only the necessary information without the operational complexity of full EPG navigation.
3Adaptability or versatility
If the system scans all channels from first to last channel number, then users can access any channel, but the time to determine a channel increases significantly
Solution Approach 1:
The system applies different scanning speeds to different channel ranges. When scanning through channels, the system moves quickly through non-favorite channels and slows down when approaching favorite channels or when the user is actively navigating. This local variation in scanning speed allows comprehensive channel coverage while minimizing the time required for channel determination.
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
An electronic device includes a detector configured to detect a user input and a controller configured to determine a favorite channel group according to a user's viewing history, scan channels in response to detecting an input of a control signal corresponding to a channel shift button for a predetermined time, and decrease a channel shift speed in a favorite channel group section corresponding to the determined favorite channel group and increase the channel shift speed in a section other than the favorite channel group section.