Abstract: A display apparatus for displaying images based on signals received from a host. The apparatus includes a determining means for determining an interface type of the host, a plurality of storage means each storing specification information relating to display for one of interface types to be connected, and an output means for outputting, from one of the storage means to the host, the specification information corresponding to the interface type determined by the determining means.

Abstract: When a “screen saver” operates to display a homogeneous black picture image after the same image is continuously displayed on a CRT for a predetermined period of time, a power supply for a CRT display unit is controlled to be turned off, thereby preventing the CRT display unit from being left for a long time in a power-on state. Namely, a waiting time of 3 minutes, for example, is provided when the “screen saver” operates so that the CRT displays a homogeneous black picture image to turn off a power circuit for the CRT, and then a heater for the CRT is turned off after a lapse of a predetermined period of time of 5 to 60 minutes, for example. An extension graphics board, which is inserted in an open slot provided in a computer of an open architecture type may be provided to perform this function.

Abstract: Directed to an adjustment system for adjusting image quality of a video monitor by using a microprocessor, the present invention simplifies complicated operation in image quality adjustment and thereby eliminates the need for high-level operating skills. The adjustment system comprises an on-screen display controller circuit which can display a plurality of adjustment items in the form of icons together with a visual message, explaining the content of each icon, on a screen of the video monitor and an input device used for selecting a desired icon and setting a corresponding parameter, the input device being constructed of four-way input switches which are integrally combined into a single button to perform adjustment functions. This construction enables an operator to perform adjustment operations in an integrated manner which have thus far been made individually, providing savings in the period of time required for adjustment work and simplification thereof.

Abstract: A display apparatus for displaying images based on signals received from a host. The apparatus includes a determining means for determining an interface type of the host, a plurality of storage means each storing specification information relating to display for one of interface types to be connected, and an output means for outputting, from one of the storage means to the host, the specification information corresponding to the interface type determined by the determining means.

Abstract: A combination includes a liquid crystal module having a liquid crystal panel forming a front surface, an opposing back surface, and a backlight structured and arranged to transmit light between the front and back surfaces. A light sensor located behind the back surface detects light transmitted from the backlight through the back surface. The light sensor detects a quantity of light when the backlight is lit at a maximum luminance, and outputs a signal indicative of the quantity of light. A luminance setting means sets a desired luminance by a user as a function of a desired percentage of the maximum lumination of the backlight. A control means controls the luminance of the backlight using the signal as a reference so that the luminance set by the luminance setting means is achieved.

Abstract: An apparatus for selectively operating a plurality of computers connected to a common video monitor, includes a single data I/P device for inputting data and instructions to the plurality of computers, a main control circuit which is connected to the data I/P device, and a selection circuit for selectively providing the data and instructions from the data I/P device.The main control circuit outputs a computer selection signal to select one of the plurality of computers to which the I/P data and instructions are to be transmitted and a video selection signal to select the video output of the selected computer to allow display on the common video monitor.

Abstract: An anode ripple voltage waveform is detected by a capacitor built into a flyback transformer. The detected waveform is then phased by a phasing circuit, amplitude adjusted by an amplitude adjusting circuit and subsequently delivered to an addition circuit. A horizontal component is detected by a horizontal output transformer, then phase adjusted by a phasing circuit and subsequently amplitude adjusted by an amplitude adjusting circuit. Thereafter, the horizontal component is added to the anode ripple component by the addition circuit, inverted and amplified by an inverting amplifier, and then supplied to an antenna arranged in proximity to the cathode ray tube. Thus, electric fields radiated from the face of the cathode ray tube are suppressed.

Abstract: An adjustment system for a video monitor including a microprocessor, a D/A converter, an on-screen display controller circuit and an operator input unit. The microprocessor is configured to output adjustment signals to input circuits of the video monitor via the D/A converter and overlay a message concerning image adjustment on a display screen via the on-screen display controller circuit. The adjustment system corrects the problem of conventional adjustment systems wherein adjustment operation cannot be carried out unless an operator is fully aware of and skilled in the adjustment procedure.

Abstract: A speaker system removably attachable to a video monitor is described which would eliminate the complexity in mounting the speaker system as an add-on unit as well as the ungraceful appearance of the video monitor when the speaker system is removed. The top side of a case incorporating speakers is formed to match the shape of the bottom of the front panel of the video monitor. The speaker system can be mounted on the bottom of the front panel of the video monitor, which is supported on top of a base, as a locking member formed on the top of the case is engaged with a locking hole formed in the bottom of the front panel, or a locking member formed on the bottom of the front panel is engaged with a locking hole formed in the top of the case. Due to lightweight and compact construction, the speaker system can be integrally mounted on the video monitor by using dead space formed between the video monitor and its base and it can be easily removed therefrom.

Abstract: An anode ripple voltage waveform is detected by a capacitor built into a flyback transformer. The detected waveform is then phased by a phasing circuit, amplitude adjusted by an amplitude adjusting circuit and subsequently delivered to an addition circuit. A horizontal component is detected by a horizontal output transformer, then phase adjusted by a phasing circuit and subsequently amplitude adjusted by an amplitude adjusting circuit. Thereafter, the horizontal component is added to the anode ripple component by the addition circuit, inverted and amplified by an inverting amplifier, and then supplied to an antenna arranged in proximity to the cathode ray tube. Thus, electric fields radiated from the face of the cathode ray tube are suppressed.

Abstract: An input signal from a Dsub connector and BNC connectors is selected by an analog switch. The frequency of horizontal and vertical synchronizing signals applied from one connector end is measured by a synchronizing frequency detection circuit. The frequencies of horizontal and vertical synchronizing signals applied from the other connector end are converted into voltage values by F/V converters. A microcomputer determines the presence of a synchronizing signal and selects an input signal from the connector end of a high priority level set in a non-volatile memory.

Abstract: A video monitor adjustment system of the invention comprises an image display means, a cursor display means, a function selector and an adjustment value calculator. The image display means outputs video information for displaying a crosshatch pattern on a video monitor and the function selector allows the choice of desired adjustable items depending on in which area of the crosshatch pattern the cursor is located. The adjustment value calculator calculates a value to be set for each adjustable item selected in accordance with the amount of movement of a mouse and outputs the calculated value to the video monitor.

Abstract: In DDC1, a data request signal is applied to overlap a vertical synchronization signal from a computer 1 to a terminal 33, the data request signal is applied from a receiver 24 through a switch 25 to a non-volatile memory 27, information related to a video monitor 4 is read from the non-volatile memory 27, and the read information is applied from a driver 21 through a data terminal 31 to the computer 1. In DDC2B, a data request signal is applied to both the data terminal 31 and a clock terminal 32, a part of the data request signal is decoded by a data request decoder 28 through a receiver 22, the data request signal is applied through the switch 25 to the non-volatile memory 27, information is read from the non-volatile memory 27, and the read information is applied from the driver 21 through the data terminal 31 to the computer 1.

Abstract: In order to eliminate any harmful influence due to electric field radiation on the human body, electric field radiation from a front surface of a cathode ray tube is reduced. A degaussing coil arranged in proximity to a peripheral edge of a front surface of a cathode ray tube is employed advantageously. The degaussing coil is supplied with a voltage which is opposite in polarity to an electric field radiated from the front surface of the cathode ray tube. The reverse polarity voltage is derived from an output signal obtained from an output signal of a horizontal deflection circuit by a flyback transformer and/or derived from a voltage obtained by phase-inverting an anode voltage fluctuating in vertical synchronization.

Abstract: An electronic game machine having a single dealer machine for dominating a game procedure and a plurality of player machines responsive to the single dealer machine for playing the game procedure in conjunction with the single dealer machine. The single dealer machine includes a first data processing unit, a first memory, a first panel display, and a first power source. Each of the plurality of player machines includes a second data processing unit, a second memory, a second panel display, a second power source, a manual control unit, and a coin handling unit. The game procedure is shared by the first data processing unit and each of the plurality of second data processing units so that a game may be played between a single player unit and the dealer machine or any number of player units and the dealer machine.