Dual-Tuner Broadcasting Receiver for Background EPG
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Solution Overview
Problem
Users of conventional broadcasting receivers must manually select and tune into multiple channels to access data broadcasting information, making it inconvenient to detect and view background channel organization information, especially for ACAP channels.
Innovation Solution
A broadcasting receiver system utilizing two tuners, where one tuner receives the currently selected channel and the other tuner captures ACAP data from other channels, processing this data to display background channel information as an EPG program image without requiring users to manually switch channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single tuner is used to receive the currently selected channel, then the device complexity is reduced, but the user cannot access background channel information without manually switching channels
Solution Approach 1:
The first tuner is configured to perform multiple functions: it既可以 receive the currently selected channel for normal broadcasting,又可以 receive background channels for EPG information display. This multi-functionality allows the system to access both current and background channel information without adding a second tuner, thereby resolving the contradiction between adaptability and device complexity.
2Loss of information
If the user manually selects and tunes into multiple channels to access data broadcasting information, then the information completeness is improved, but the ease of operation deteriorates
Solution Approach 1:
The system performs preliminary action by automatically receiving and processing background channel information through the first tuner in advance. The EPG display unit then presents this pre-acquired information to the user without requiring manual channel switching. This preliminary acquisition of background information resolves the contradiction between information completeness and ease of operation.
3Measurement precision
If ACAP data broadcasting information is collected from each channel individually, then the data accuracy is improved, but the loss of time increases
Solution Approach 1:
The first tuner continuously receives ACAP data broadcasting information from background channels without interruption or manual intervention. This continuous acquisition ensures data accuracy is maintained while eliminating the time loss associated with manual channel selection. The EPG display unit then presents this continuously acquired information to the user.
Data Source
AI summary
The present invention relates to a broadcasting receiver and a method for providing a background channel EPG and comprises a first tuner that selects a channel chosen by a user; a second tuner that receives channels other than the channel tuned with said first tuner; a data parser that collects data broadcast signals from among the broadcast signals of the channels received at said second tuner; an image processor that processes said collected data broadcast signals to convert these into image data; a storage part that stores said converted image data; and a display part that displays the broadcast program information for the channels that are received via said second tuner, wherein said stored image data has been inserted into a channel screen selected via said first tuner. Thus, in the present invention, two tuners are used to capture the ACAP image of a background channel and insert it into the EPG program image of the background channel so that other channel information is converted into an image and provided to a user. In addition, the EPG program image of the present invention is generated by obtaining location information from the file system structure of broadcast program contents that represent an object unit and by capturing video data so that it can be shifted to the program of an applicable background channel and displayed when the EPG program image is executed. Also, the present invention provides detailed program information for the selected channel by extracting image data from a data broadcast signal and inserting it into the EPG as an image block for a selected channel.