Broadcasting Receiver Virtual Channel Update Mechanism
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Solution Overview
Problem
Conventional broadcasting receivers face difficulties in updating channel numbers corresponding to program changes at the broadcasting station side, leading to issues where users cannot switch to the correct program due to mismatched physical and virtual channels.
Innovation Solution
A broadcasting receiver system that includes a receiver, a broadcast program output unit, a channel storage unit, a virtual channel acquisition unit, and a storage control unit to compare and update virtual channels, allowing automatic storage of new channel information without manual re-registration, ensuring seamless switching of broadcast programs even when channel content updates occur.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the channel number is changed at the broadcasting station side for content update, then the broadcast content can be updated, but the original channel number disappears and the broadcasting receiver cannot switch to the predetermined program
Solution Approach 1:
The system performs preliminary actions by storing not only the current virtual channel information but also historical virtual channel information associated with each physical channel. When a channel number changes at the broadcasting station, the receiver has already preserved the old virtual channel data, allowing it to maintain the correspondence between physical channel and program content even after the virtual channel number changes.
Solution Approach 2:
The system establishes a feedback mechanism where the broadcasting receiver continuously monitors and detects changes in virtual channel numbers by comparing received virtual channel information with stored historical information. When a discrepancy is detected (indicating a channel number change at the station), the system automatically updates its internal mappings to reflect the new channel numbers while maintaining program continuity.
2Reliability
If manual re-registration of channel numbers is required after broadcasting station updates, then accurate channel correspondence can be maintained, but user operation complexity increases and user experience deteriorates
Solution Approach 1:
The system implements self-service functionality by automatically detecting channel number changes and updating its internal channel mappings without requiring user intervention. The broadcasting receiver autonomously compares received virtual channel information with stored historical data, identifies changes, and updates the correspondence relationships automatically, freeing users from manual re-registration tasks.
Solution Approach 2:
The system introduces an intermediary mechanism in the form of a virtual channel information storage unit that acts as a buffer between the broadcasting station and the user interface. This intermediary stores historical virtual channel information and facilitates automatic comparison and update operations, shielding users from the complexity of channel number changes while ensuring accurate channel correspondence is maintained.
Data Source
AI summary
Discloses is a broadcasting receiver including: a receiver; a broadcast program output unit; a channel storage unit to store a physical channel correlated to a first virtual channel, the first virtual channel being composed of a first main channel number and a first sub-channel number; a virtual channel acquisition unit to acquire a second virtual channel from the broadcast signal received by the receiver, the second virtual channel being composed of a second main channel number and a second sub-channel number; a virtual channel comparison unit to compare the first virtual channel with the second virtual channel; a storage control unit to allow the channel storage unit to store the second virtual channel in replacement of the first virtual channel, when the virtual channel comparison unit judges that one of the first and second main channel numbers and the first and second sub-channel numbers are different from each other.