Wireless KVM Switch Using Protocol Transceivers for Cable Reduction

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Solution Overview

Problem

The existing keyboard-video-mouse (KVM) switch systems require numerous cables for data transmission, leading to space occupancy issues and electromagnetic interference, especially in large setups like racked computers, and lack wireless capabilities for remote access and management.

Innovation Solution

A control management system that uses wireless communication interfaces like Bluetooth, 802.11 series wireless networks, or wireless USB to transmit keyboard/mouse data and receive video/audio commands, featuring a transforming unit, protocol signal transceivers, converting modules, system controllers, and a switch unit to enable wireless control and monitoring of multiple electrical devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional cable-based KVM switch systems are used to connect multiple computers, then data transmission reliability is improved, but space occupancy increases and electromagnetic interference occurs

Engineering Contradiction:
Improvedata transmission reliabilityVSAvoidspace occupancy
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent replaces the mechanical cable-based transmission system with a wireless communication system. The KVM switch and computers communicate through wireless signals (Bluetooth, 802.11 WiFi, or wireless USB) instead of physical cables, eliminating space occupancy issues while maintaining data transmission functionality. The wireless transceivers in both the KVM switch and computers enable this substitution without requiring physical connections.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Stability of the object's composition

If multiple cables are used to connect KVM switch to numerous computers, then data transmission stability is improved, but electromagnetic radiation increases

Engineering Contradiction:
Improvedata transmission stabilityVSAvoidelectromagnetic radiation
Core Design Contradiction:
Stability of the object's compositionVSObject-generated harmful factors

Solution Approach 1:

The patent substitutes the cable-based electrical signal transmission with wireless electromagnetic communication. Instead of multiple cables carrying signals between the KVM switch and computers, the system uses wireless transceivers to transmit data through the air, eliminating the electromagnetic radiation generated by bundled cables while maintaining stable data transmission through protocol-based wireless communication.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Area of stationary object

If wireless communication interfaces are used to connect KVM switch to computers, then space requirements are reduced, but connection reliability may be affected

Engineering Contradiction:
Improvespace requirementsVSAvoidconnection reliability
Core Design Contradiction:
Area of stationary objectVSReliability

Solution Approach 1:

The patent introduces protocol signal transceivers as intermediary devices that facilitate reliable wireless communication between the KVM switch and computers. These transceivers act as mediators that convert and transmit signals according to standardized protocols (Bluetooth, 802.11, wireless USB), ensuring stable connections despite the wireless medium. The intermediary transceivers handle signal modulation, error correction, and protocol management to maintain connection reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Adaptability or versatility

If traditional cable-based KVM systems are used, then device compatibility is ensured, but system complexity increases with more cables and connectors

Engineering Contradiction:
Improvedevice compatibilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal wireless communication interface that can connect the KVM switch to multiple types of computers simultaneously. Instead of requiring different cable types and connectors for different devices (VGA, USB, serial), the wireless system uses a single standardized protocol interface that works across diverse computing platforms, reducing system complexity while maintaining broad device compatibility and adaptability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS7587534B2KVM switch system capable of wirelessly transmitting keyboard-mouse data and receiving video/audio driving command
Publication Date: 2009.09.08 ATEN INTERNATIONAL CO LTD
  • US7587534B2 patent drawing
  • US7587534B2 patent drawing
  • US7587534B2 patent drawing

AI summary

A control management system for controlling electrical devices is disclosed. The control management system comprises a plurality of electrical devices, and a keyboard-video-mouse switch. Each electrical device corresponds to a transforming unit for generating a protocol command signal, and a first protocol signal transceiver for wirelessly transmitting the protocol command signal via a communication interface. The keyboard-video-mouse switch comprises a plurality of second protocol signal transceivers, a plurality of converting modules, a plurality of system controllers, and a switch unit. Each of the second protocol signal transceiver corresponds to one of the first protocol signal transceivers and is used for receiving the protocol command signal from the corresponding first protocol signal transceiver. Each converting module, coupled to one of the plurality of second protocol signal transceivers, is used for converting the protocol command signal into a driving command. Each system controller, coupled to one of the plurality of converting module, is used for generating video/audio data stream based on the driving command. A switch unit is used for switching to a route to deliver the video/audio data stream from one of the plurality of converting modules to a display.