Image Apparatus Common Input Terminal Signal Format Detection
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Solution Overview
Problem
Image apparatuses require multiple dedicated input terminals for different video signal formats, leading to a cluttered interface and the need to determine signal formats when using common input terminals.
Innovation Solution
An image apparatus with a common input terminal and a control unit that operates in different video modes based on the signal format, using a logic circuit to prioritize and select the appropriate video mode for input signals from dedicated and common terminals, connected via RCA cables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple dedicated input terminals are provided for different video signal formats, then the image apparatus can receive various video signals, but the number of input terminals increases and the interface becomes cluttered
Solution Approach 1:
The patent implements a universal input terminal that can receive multiple types of video signals (component, S-Video, and composite video signals) through a single interface. The terminal is designed to accept different cable configurations, and the control unit automatically detects and adapts to the signal type, eliminating the need for separate dedicated terminals for each video format while maintaining full compatibility with all signal types.
2Device complexity
If a common input terminal is used instead of dedicated terminals, then the number of terminals is reduced, but it becomes difficult to determine which format of video signal is input
Solution Approach 1:
The control unit automatically detects the type of video signal input through the common terminal and self-configures the processing mode accordingly. The system performs automatic signal format detection and adaptation without requiring manual intervention or user determination, enabling the terminal to serve itself in identifying and processing the correct signal type.
Solution Approach 2:
The control unit continuously monitors the input signal characteristics and provides feedback to adjust the processing mode. By detecting signal properties and automatically adapting the processing configuration, the system ensures correct handling of different video formats while maintaining a simplified terminal interface.
3Difficulty of detecting and measuring
If dedicated input terminals are used for each video signal format, then signal format determination is simplified, but the device requires more terminals and cables
Solution Approach 1:
The patent merges multiple dedicated input terminals for different video formats into a single common input terminal. By combining the functionality of separate component, S-Video, and composite video terminals into one unified interface, the system reduces the number of terminals and cables required while maintaining the ability to distinguish and process different signal formats through automatic detection.
Data Source
AI summary
An image apparatus and a method for receiving a video signal are provided. The image apparatus includes dedicated input terminals for receiving only particular video signals, and a common input terminal for receiving diverse video signals, and determines the format of video signals input through a corresponding input terminal and then displays the determined format on a screen. Accordingly, the number of input terminals can be reduced and the user can identify the format of the video signal input through the common input terminal.