Video Display Device External Tuner Integration
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Solution Overview
Problem
Existing video display devices face challenges in displaying real-time video signals from multiple channels without the need for multiple tuners, which increases manufacturing costs.
Innovation Solution
A video display device with an external tuner video reception unit, internal reception tuner, video control unit, and display control unit that receives and displays video signals from both internal and external sources in real-time, allowing for simultaneous display of multiple channels without requiring multiple tuners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple tuners are equipped in a video display device to display real-time video signals of multiple channels, then the ability to display multiple channels in real time is improved, but the manufacturing cost increases significantly
Solution Approach 1:
The invention introduces an external device with a reception tuner as an intermediary component. Instead of equipping the video display device with multiple tuners, the system uses an external device (such as a set-top box or external receiver) that has the tuning capability. The video display device communicates with this external device to receive and display video signals from multiple channels, thereby achieving multi-channel display functionality without the need for multiple internal tuners, thus reducing manufacturing cost while maintaining versatility.
2Ease of manufacture
If a single tuner is used in a video display device, then the manufacturing cost is kept low, but the ability to display real-time video signals of multiple channels is lost
Solution Approach 1:
The invention makes the external device universal by giving it the tuning functionality that would otherwise need to be present in the video display device. The external device serves multiple purposes: it receives broadcast signals, tunes to different channels, and provides video output to the display device. This multi-functional approach allows the video display device to maintain a simple, low-cost single-tuner or no-tuner configuration while still achieving multi-channel display capability through the external device's universal functionality.
3Adaptability or versatility
If video signals from external devices are received and displayed simultaneously with internal tuner signals, then the versatility of the system is improved, but the system complexity increases
Solution Approach 1:
The invention segments the tuning and reception functions from the display function. The external device with reception tuner handles signal reception and channel selection, while the video display device handles display control. This segmentation allows each component to specialize in its function, reducing the overall system complexity. The video display device maintains a simple role of receiving video output from the external device and displaying it, while the external device handles the complex tuning and signal processing tasks.
Data Source
AI summary
A video display device including:an external tuner video reception unit that obtains, from an external device having a reception tuner to receive a video signal, a video signal received by the reception tuner;an internal reception tuner that receives a video signal;a video control unit that controls so that the external tuner video reception unit receives a video signal of each channel; anda display control unit that controls to display a video signal received by the external tuner video reception unit in real time and the video signal received by the internal reception tuner at the same time on a screen.