KVM Switch Control Circuit for Automatic Display Configuration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional KVM switches require manual resetting of screen content when switching between computers, and additional expensive devices are needed for image conversion during extended screen or dual view operations.
Innovation Solution
A switch with a control circuit that detects electrical characteristics from multiple input ports and adjusts the output accordingly, maintaining a logic high level for hot plug detection to automatically update image data without manual intervention and eliminate the need for extra conversion devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional KVM switch is used to control multiple computers, then the user can control multiple computers through a single interface, but the user can only control a single computer at the same time and needs to manually reset screen content when switching
Solution Approach 1:
The switch automatically detects electrical characteristics from connected computers and self-adjusts output parameters without user intervention. The control circuit monitors electrical characteristics and automatically configures the output port, eliminating the need for manual screen resetting by the user.
Solution Approach 2:
The control circuit continuously monitors electrical characteristics from input ports and uses this feedback to automatically adjust output parameters. When a computer is connected or switched, the system detects the electrical characteristics and automatically configures the display output, creating a closed-loop control system that eliminates manual intervention.
2Adaptability or versatility
If extended screen or dual view operation is implemented, then the user can utilize multiple displays, but additional expensive image conversion devices are required
Solution Approach 1:
The switch is designed to handle multiple display configurations (single display, extended screen, dual view) through a single device. The control circuit automatically detects the display configuration and adjusts output parameters accordingly, making the switch universal for different display scenarios without requiring additional conversion devices.
Solution Approach 2:
The patent combines the functions of multiple devices (KVM switching, image conversion, display configuration) into a single switch device. The control circuit integrates the capabilities to detect electrical characteristics, determine display configuration, and adjust output parameters, eliminating the need for separate image conversion devices.
3Device complexity
If manual screen resetting is required when switching computers, then the switching operation is simple, but user convenience is reduced and time is lost
Solution Approach 1:
The control circuit performs preliminary detection of electrical characteristics as soon as a computer is connected to the input port. By detecting and configuring output parameters in advance, before the user needs to use the display, the system eliminates the time loss associated with manual screen resetting while maintaining simple switching operation.
Data Source
AI summary
The present disclosure provides a switch, which includes a first input port, a second input port, an output port and a control circuit. The output port outputs image data received by the first input port. The control circuit receives a first electrical characteristic and a second electrical characteristic from the first input port and the second input port respectively, and changes a third electrical characteristic of the output port when the second electrical characteristic is different from the first electrical characteristic, and then the output port outputs image data received by the second input port.