Fujitsu Component Limited

Kazuhiro Yasuno

Katsuji Ideura

Satoshi Sakurai

Fujio Seki

Masanobu Hayama

Yutaka Inomoto

Yuichiro Terasawa

Takashi Iwao

Akio Nakamura

Kenichi Fujita

Masato Hirose

Ryohei Okada

Jinsoo Park

Naoki Ishii

Hideyuki Higuma

Masayuki Kuribayashi

A KVM (K: keyboard, V: Video, M: Mouse) switch connectable between a plurality of computers and a display, including: a plurality of input terminals that input analog image signals from the computers, respectively; a storage that stores an adjustment value that adjusts an image quality of each of the analog image signals for each input terminal; a processor that selects any one of the plurality of input terminals in accordance with an operation of an keyboard; and an adjustment circuit that adjusts the image quality of an analog image signal input to the selected input terminal based on the adjustment value corresponding to the selected input terminal.

KVM switch

A KVM (K: keyboard, V: video, M: mouse) switch to be connected between a computer, and a keyboard and a mouse, the KVM switch includes: a connector that is cascade-connected to another KVM switch; an inputter that inputs a creation instruction of control data including control information which controls the operation of the another KVM switch; a creator that creates the control data having a data format that is the same as a data format of key code data inputted from the key board or the mouse when a creation instruction of the control data is inputted, the control data including the control information and a first identifier indicative of the control data; and an outputter that outputs the created control data to the another KVM switch.

A KVM (K: Keyboard, V: Video, M: Mouse) switch includes: a plurality of first ports each of which is connected to at least one of a computer and another KVM switch, the another KVM switch having a plurality of third ports connectable to a computer; a second port; a connection unit that selects a first port from the plurality of first ports, and connects the selected first port to the second port; and a control unit that transmits a control signal to the another KVM switch via the selected first port when the first port connected to the computer is connected to the second port, the control signal being a signal for selecting a third port to be connected to the second port from the third ports.

KVM switch and KVM system

A video signal adjustment system that is capable of being connected between a server and a console includes: a server unit that is connected to the server; a main unit that is connected to the server unit, and includes a first adjustment portion that adjusts gain and frequency characteristic of a video signal output from the server; and a console unit that is connected between the main unit and the console, and includes a second adjustment portion that adjusts gain, frequency characteristic, and delay of the video signal output from the main unit.

Video signal adjustment system and method for controlling the same

A communication device includes: a first and a second connectors that are connectable to an external device via a first and a second cables, respectively; a detector that detects attachment and detachment of the second cable to the second connector; and a controller that communicates information on attachment and detachment of the second cable to the external device via the first cable, changes a communication mode from a first mode to a second mode when the second cable is attached to the second connector, and changes the communication mode from the second mode to the first mode when the second cable is detached from the second connector, the first mode being a mode in which the controller communicates with the external device via the first cable, and the second mode being a mode in which the controller communicates with the external device via the first and the second cables.

Data transmission system and data communication device

An electronic apparatus includes a display, a display controller that displays an image on the display in accordance with an image signal input from outside, a first power supply unit that coverts an alternating-current power into a first power having a first voltage, and supplies the first power to the display, a shutoff unit that shuts off the alternating-current power being supplied to the first power supply unit, based on the image signal, and a second power supply unit that converts the alternating-current power into a second power having a second voltage, and supplies the second power to the display controller and the shutoff unit.

Electronic apparatus with display and display controller

A signal transmission system includes a transmitting device and a receiving device. The transmitting device includes a superimposition portion that superimposes at least one synchronizing signal on at least one video signal among a plurality of video signals, and outputs the synchronizing signal and the video signal as a superimposition signal to a receiving device. The receiving device includes a separation portion that separates the superimposition signal into the synchronizing signal and the video signal, a first adjustment portion that adjusts an amount of delay of the separated video signal to another video signal, and a second adjustment portion that adjusts an amount of delay of the separated synchronizing signal.

Signal transmission system and control method therefore

A KVM switch includes: server units respectively connected to computers; user units respectively connected to input/output devices for transmitting signals to the computers and receiving signals from the computers; and a main unit that connects the server units and the user units. Each of the server units, user units and main unit is a communication unit and includes: a first part communicating with another communication unit to inform the above another communication unit of unit type information about the communication unit and receive unit type information about the above another communication unit therefrom; and a second part controlling communications with the above another communication unit on the basis of the unit type information acquired from the above another communication unit.

Communication apparatus, KVM switch and communication control method

A KVM switch including server units that are respectively connected to computers units, user units that are respectively connected to input-output units inputting and outputting a signal to the computer units, and a main unit that connects the server units and the user units selectively. The input-output unit switches between the computer units where the signal is input and output. The server unit has a first reference signal generator that generates a first reference signal used for a distortion control of a picture signal. The main unit has a first controller receiving the first reference signal and controlling the distortion of the picture signal and a second reference signal generator generating a second reference signal used for the distortion control of the picture signal. The user unit has a second controller that receives the second reference signal and controls the distortion of the picture signal.

KVM switch and method of controlling the same

A selector that selectively makes connections between USB devices attached to a console side thereof and electronics devices connected to a host side thereof. The selector includes a USB host circuit controlling the USB devices, and USB device emulation circuits being respectively provided for the electronics devices and maintaining the connections with the electronics devices even while the USB devices are selectively being changed, and a control circuit coupling the USB host circuit and USB device emulation circuits.

Growing community of inventors

Shinagawa, Japan

Kazuhiro Yasuno