Tynax ~ Patent Library

Patent for Sale:

KVM cable    

A KVM cable to exchange PS/2 signals and USB signals for mouse and keyboard so that a KVM switch without USB interfaces can still control a computer via the USB interface of the computer


The set of computer connectors connect to the computer and includes a USB connector using a signal converting device therein to convert USB signals into PS/2 signals and vice versa. The cable is connected between the set of computer connectors and the combination connector to transmit signals between the KVM switch and the computer. The combination connector receives video signals from the computer and transmits the same to the KVM switch. Simultaneously, PS/2 keyboard signals and PS/2 mouse signals from the KVM switch are also transmitted to the computer via the cable and are converted into USB keyboard signals and USB mouse signals to control the computer. The signal converting device can be configured in either the USB connector or the combination connector to convert the PS/2 signals and the USB signals.

The KVM switch cable according to the present invention utilizes one cable to transmit signals between the computer and the KVM switch, and further convert USB into PS/2 signals and vice versa. Therefore, the KVM switch with PS/2 interfaces can easily control a computer with a USB interface. Hence, the life-span of a KVM switch with the PS/2 interface can be extended. Furthermore, a KVM switch with the USB interface can also control the computer with the PS/2 interface. Accordingly, the server computer can be controlled more conveniently and the hardware cost for the computer upgrade can be reduced.

Primary Application of the Technology


The Problem Solved by the Technology

The server computer administrators have to separate the computers without PS/2 interfaces from the computers with PS/2 interface. Furthermore, if a computer has both PS/2 and USB interfaces but the PS/2 interface is occupied by a local device, the server computer administrator still has to connect the computer to a KVM switch with USB interface for computer control. Such a server computer management method not only increases the control complexity but also requires that the conventional computers be phased out sooner. Therefore, the facility investment is increased, convenient server computer control is lost, and the management cost is also increased when the old computer is replaced with the new generation computer.

The seller would like to be granted a license back.

Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 710: Electrical Computers And Digital Data Processing Systems: Input/Output

This class provides, within a computer or digital data processing system with the following processes or apparatus for 1. transferring data from one or more peripherals to one or more computers or digital data processing systems for the latter to process, store, or further transfer or for transferring data from the computers or digital data processing systems to the peripherals; 2. for interconnecting or communicating between two or more components connected to an interconnection medium (e.g., a bus) within a single computer or digital data processing system; 3. for preventing access to a shared resource of a computer or digital data processing system; 4. for granting access to a shared resource of a computer of digital data processing system by one of a plurality of components of the computer or digital data processing system by interrogating each of the components in a predetermined order; 5. for determining which of a plurality of components of a computer or digital data processing system contending for access to a shared resource shall be granted access at any one time based upon a predetermined criteria; and 6. for stopping, halting, or suspending a current processing function within a computer or digital data processing system.

Subclass 5: Input/Output command process
Subclass 62: Peripheral adapting
Subclass 63: Universal
Subclass 72: Application-specific peripheral adapting

Class 361: Electricity: Electrical Systems And Devices

Systems or devices which provide safety and protection for other systems and devices; control circuits for electromagnetic devices and non-electromagnetic-type relays. Systems or devices which discharge, or prevent the accumulation of electrical charge on or in an object or material; circuits for charging objects or materials. Systems for generating or conducting an electric charge. Systems which process electrical speed signals. Circuits for reversing the polarity of an electric circuit. Systems which cause the ignition of a fuel or an explosive charge. Systems and processes for demagnetizing a magnetic field. Transformers and inductors with integral switch, capacitor or lock. Electrostatic capacitors, per se. Housings and mounting assemblies with plural diverse electrical components. Electrolytic systems and devices.