Image display apparatus, computer apparatus, computer system equipped with both of them and control method of computer system

An image display apparatus comprising an image-displaying means for displaying an image, a video-signal-supplying means for supplying a video signal to the image-displaying means, a driving-voltage-impressing means for impressing a driving voltage for driving said image-displaying means on the image-displaying means, an adjusting means for manually adjusting a displaying state of a displaying faceplate of the image-displaying means, a communicating means for communicating with a computer apparatus, and a controlling means for nullifying manipulations of said adjusting means on the basis of a transmitted signal from said computer apparatus received by the communicating means.

An image display apparatus comprising an image-displaying means for displaying an image, a video-signal-supplying means for supplying a video signal to the image-displaying means, a driving-voltage-impressing means for impressing a driving voltage for driving said image-displaying means on the image-displaying means, a switching means for switching the image-displaying means to a low power-consuming state thereof, a communicating means for communicating with a computer apparatus, and a controlling means for controlling said switching means on the basis of a transmitted signal generated by said computer apparatus in response to an instruction input by an operator, said transmitted signal being received by the communicating means.

A computer apparatus comprising a central controlling means for executing various operations, a memorizing means for memorizing a program controlling the operation of the central controlling means and various data, a terminal-controlling means for controlling the operation of various terminals on the basis of indications of said central controlling means, a communicating means for communicating with an image display apparatus on the basis of indications of said central controlling means, and an indicating-signal-outputting means for outputting an indicating signal to said image display apparatus through said communicating means for degaussing a cathode ray tube of said image display in response to an instruction input by all operator.

A computer apparatus comprising a central controlling means for executing various operations, a memorizing means for memorizing a program controlling the operation of the central controlling means and various data, a terminal-controlling means for controlling the operation of various terminals on the basis of indications of said central controlling means, a communicating means for communicating with an image display apparatus on the basis of indications of said central controlling means, and an indicating-signal-outputting means for outputting an indicating signal nullifying manipulations of an adjusting means for manually adjusting a displaying state of an image-displaying means of said image display apparatus through said communicating means.

A computer apparatus comprising a central controlling means for executing various operations, a memorizing means for memorizing a program controlling the operation of the central controlling means and various data, a terminal-controlling means for controlling the operation of various terminals on the basis of indications of said central controlling means, a communicating means for communicating with an image display apparatus on the basis of indications of said central controlling means, and an indicating-signal-outputting means outputting an indicating signal to said image display apparatus through said communicating means for switching an image-displaying means of said image display apparatus to a low power-consuming state thereof.

A computer system comprising:

• an image display apparatus comprising a cathode ray tube for displaying an image, a video-signal-supplying means for supplying a video signal to the cathode ray tube, a driving-voltage-impressing means impressing a driving voltage for driving said cathode ray tube on the cathode ray tube, and a degaussing means for degaussing the cathode ray tube;
• a computer apparatus including a central controlling means for executing various operations, a memorizing means memorizing a program controlling the operation of the central controlling means and various data, a terminal-controlling means for controlling the operation of various terminals on the basis of indications of said central controlling means, and a communicating means for communicating said said image display apparatus on the basis of indications of said central controlling means an indicating-signal-outputting means for outputting an indicating signal to said image display apparatus through said communicating means for degaussing said cathode ray tube in response to an instruction input by an operator and wherein said image display apparatus further comprises a communicating means for communicating with said computer apparatus and a controlling means for controlling said degaussing means on the basis of said indicating signal from said computer apparatus received by the communicating means.

A controlling method for controlling a computer system for displaying an image on a cathode ray tube of an image display apparatus on the basis of an indicating signal from a computer apparatus, said method comprising the steps of:

• inputting, by an operator an instruction signal for degaussing said cathode ray tube to said computer apparatus, transmitting said indicating signal input by means of the inputting step from said computer apparatus to said image display apparatus, and immediately degaussing said cathode ray tube on the basis of said indicating signal transmitted by means of the transmitting step.

A controlling method for controlling a computer system for displaying an image on an image-displaying means of an image display apparatus on the basis of an indicating signal from a computer apparatus, the method comprising the steps of:

• inputting an indicating signal for nullifying an adjusting manipulation adjusting a displaying state of a displaying faceplate of said image-displaying means to said computer apparatus, transmitting said indicating signal inputted by means of the inputting step from said computer apparatus to said image display apparatus, and nullifying an adjusting manipulation adjusting said displaying state of said displaying faceplate of said image-displaying means on the basis of said indicating signal transmitted by means of the transmitting step.

A controlling method for controlling a computer system for displaying an image on an image-displaying means of an image display apparatus on the basis of an indicating signal from a computer apparatus, said method comprising the steps of:

• generating an indicating signal for switching said image-displaying means to a low power-consuming state thereof when manipulation-inputting to said computer apparatus is not detected for a predetermined time period, transmitting said indicating signal generated by means of the generating step from said computer apparatus to said image display apparatus, and switching said image-displaying means to the low power-consuming state thereof on the basis of said indicating signal transmitted by means of the transmitting step.