Abstract: A pointing device includes: a film that includes a protruding portion which protrudes upward, and a plane portion which extends from the protruding portion; a first conducting layer that is disposed under the film; a second conducting layer that is disposed on a base material and is opposed to the first conducting layer; and a plurality of spacers that are formed on any one of a lower portion of the first conducting layer and an upper portion of the second conducting layer, and are arranged, between the first conducting layer and the second conducting layer, so as to be spaced mutually; wherein an interval between the spacers in an area of the plane portion is formed so as to become narrower than an interval between the spacers in an area of the protruding portion.

Abstract: A keyboard is provided with a base member, moving members provided on the base member and unit parts. Each of the unit parts includes a contact which is electrically connected when depressed and an elastic member. The moving members include a first moving member which engages with one unit part, and a second moving member which engages with plural unit parts. The second moving member has a structure where the second moving member pushes the elastic member of one unit part and avoids pushing the elastic member of the other unit part.

Abstract: A skew adjusting apparatus includes: latching circuits that latch other signals in synchronism with transition timing of the signal level of a reference signal among signals transmitted with a plurality of communication cables; delay elements that are provided on the plurality of communication cables, and delay the signals transmitted with the plurality of communication cables, respectively; and a controller that controls the delay elements based on the outputs of the latching circuits to adjust skews between the signals.

Abstract: A keyboard is provided with a base member, moving members provided on the base member and unit parts. Each of the unit parts includes a contact which is electrically connected when depressed and an elastic member. The moving members include a first moving member which engages with one unit part, and a second moving member which engages with plural unit parts. The second moving member has a structure where the second moving member pushes the elastic member of one unit part and avoids pushing the elastic member of the other unit part.

Abstract: An operation body having a pointing function with respect to information includes a chassis having a reflection face, a circuit charging an inner second battery when receiving an electrical power from outside through a terminal exposed from the chassis, and a circuit transmitting switch information to outside cordlessly. On the other hand, an information-input device includes a chassis supporting a keyboard, and an optical system that transmits a light to an operation body operated on the chassis and receives a reflected light of the light. The chassis supporting the keyboard has a recess housing the operation body. The operation portion may be housed in the recess. The second battery is charged when the operation body is housed. And a light emitting of the optical system is stopped when the operation body is housed.

Abstract: A repeater device that is placed between a transmission device connected to a server device and a reception device connected to a console device that controls the server device. The repeater device repeats a signal between the transmission device and the reception device, and includes an equalizer amplifier that amplifies a signal that is received from the transmission device or another repeater device.

Abstract: 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.

Abstract: 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.

Abstract: A remote console unit includes a signal processing apparatus that receives an image signal from a computer main body and also sends and receives various signals other than the image signal to and from the computer main body through a cable for general purpose. Data input and/or output can be performed remotely to and from the computer main body through the cable.

Abstract: 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.

Abstract: A starting device includes a first transform device that restores a first transfer signal, which is converted from an input signal supplied from an input device, to the input signal, and outputs the input signal to a computer, and a power connecting device that starts the computer when the input signal restored by the first transform device includes a starting signal.

Abstract: A KVM switch includes a storing portion that stores partial data of a freeze-up screen outputted when each server freezes up, and a controlling portion that receives digital data (that is, screen data) transmitted from each server, determines whether received screen data includes a part identical to the partial data of the freeze-up screen, and controls a power supply regulator to restart the freeze-up server when it is determined that the received screen data includes the part identical to the partial data of the freeze-up screen.

Abstract: A power supply controlling system includes a receiving device, a power supply device, and a transmitting device connected to an information processing apparatus. The receiving device includes a transmitting portion that transmits a switch signal of a power supply switch used for on/off of the power supply device to the transmitting device via second signal lines used for the reception of a second video signal, which are different from first signal lines used for the reception of a first video signal. The transmitting device includes an acquiring portion that acquires the switch signal from the second signal lines on which the second video signal and the switch signal are mixed, and an outputting portion that outputs the switch signal to the power supply device. The receiving device and the transmitting device are connected with a single cable including the first and the second signal lines.

Abstract: A switching device that selectively switches connections to a predetermined terminal among two or more terminals connected to servers, and can be remote-controlled via a network, includes a network interface circuit to be connected to the network, an image processing unit that includes an image compression circuit for compressing image signals outputted from the servers, and a controller that changes a compression method or compression rate to be used at the image compression circuit in accordance with the congestion level of the network.

Abstract: A KVM switch is connected to a server, and a client via a network. The KVM switch includes: a signal processing portion that receives an analog image signal corresponding to screen data displayed on a display device of the client from the server, executes analog/digital conversion to the analog image signal, and stores a converted digital image signal as the screen data into a memory; a detecting portion that, when new screen data is stored, detects data corresponding to a changing part of the new screen data to screen data that has already been stored into the memory; a thinning-out portion that thins out the detected data corresponding to the changing part; and a transmitting and receiving portion that transmits data corresponding to the changing part after the thinning-out to the client, and receives operation data from an input device connected to the client.

Abstract: A cordless pointing device used for moving a pointer displayed on a display screen and selecting information displayed on the display screen. The cordless pointing device includes an operation device having an optical reflection surface, a light emitting and receiving unit, which is a separate unit from the operation device, and emits a light to the optical reflection surface of the operation device and receives the light reflected on the optical reflection surface of the operation device, a switch for generating an instruction on information pointed by the pointer, and a control unit that moves the pointer according to a movement of the operation device detected by the light emitting and receiving unit when the light is received and detects the instruction given by the switch.

Abstract: A communication cable connected between a first communication apparatus connected to an information processing apparatus and a second communication apparatus connected to a console, including: three pairs of signal lines that transmit a video signal from the information processing apparatus to the console via the first communication apparatus and the second communication apparatus; and a pair of signal lines that transmits an operation signal from the console to the information processing apparatus via the first communication apparatus and the second communication apparatus, and is shielded with a shield member.

Abstract: A switching device that selectively switches connections to a predetermined terminal among two or more terminals connected to servers, and can be remote-controlled via a network, includes a network interface circuit to be connected to the network, an image processing unit that includes an image compression circuit for compressing image signals outputted from the servers, and a controller that changes a compression method or compression rate to be used at the image compression circuit in accordance with the congestion level of the network.

Abstract: A switching device that selectively switches connections to a predetermined terminal among two or more terminals connected to servers, and can be remote-controlled via a network, includes a network interface circuit to be connected to the network, an image processing unit that includes an image compression circuit for compressing image signals outputted from the servers, and a controller that changes a compression method or compression rate to be used at the image compression circuit in accordance with the congestion level of the network.

Abstract: A server system includes at least one server, a signal processing unit that enables to operate said at least one server with a set of console, and a chassis having slots and a circuit board, said at least one server or the signal processing unit being attachable and detachable to any of the slots, the circuit board having interconnection lines connecting the slots. Said at least one server and the signal processing unit being connected via an interface that allows plug and play connectivity. Thus, it is possible to construct the server system without external cables. In addition, when a server is newly added to or removed from the system or, it is no longer necessary to power of the other servers. This makes it possible to facilitate system construction and management.