Method and apparatus for controlling image-display devices collectively
First Claim
1. An image-transmitting device connected to image-display devices through a bus cable, said image-transmitting device comprising:
- a memory unit storing a set of screen data whose correspondence to each of said image-display devices and a displaying order of said screen data to be displayed on said image-display devices are predetermined;
a transmission-data-generating unit selecting specific screen data from among the set of the screen data by following the correspondence and the displaying order, and generating transmission data that each of said image-display devices is to display based on the selected specific screen data;
a bus interface connected to said image-display devices through the bus cable; and
a transmission unit transmitting the transmission data from said bus interface through the bus cable to each of said image-display devices.
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Abstract
An image-transmitting device connected to image-display devices through a bus cable is provided. The image-transmitting device includes a memory unit storing a set of screen data whose correspondence to each of the image-display devices and a displaying order of the screen data to be displayed on the image-display devices are predetermined; a transmission-data-generating unit selecting specific screen data from among the set of the screen data by following the correspondence and the displaying order, and generating transmission data that each of the image-display devices is to display based on the selected specific screen data; a bus interface connected to the image-display devices through the bus cable; and a transmission unit transmitting the transmission data from the bus interface through the bus cable to each of the image-display devices. The image-transmitting device transmits as the screen data, a combination of data specifying an updating area of the screen data displayed on an image-display device and data used for updating part of the screen data displayed in the updating area, to the image-display device through the bus cable, so that the image-display devices can simultaneously update the screen data displayed thereon.
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Citations
24 Claims
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1. An image-transmitting device connected to image-display devices through a bus cable, said image-transmitting device comprising:
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a memory unit storing a set of screen data whose correspondence to each of said image-display devices and a displaying order of said screen data to be displayed on said image-display devices are predetermined;
a transmission-data-generating unit selecting specific screen data from among the set of the screen data by following the correspondence and the displaying order, and generating transmission data that each of said image-display devices is to display based on the selected specific screen data;
a bus interface connected to said image-display devices through the bus cable; and
a transmission unit transmitting the transmission data from said bus interface through the bus cable to each of said image-display devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An image-display system including a control device and image-display devices connected through a bus interface to said control device,
said control device comprising: -
a memory unit storing a set of screen data whose correspondence to each of said image-display devices and a displaying order of said screen data to be displayed on said image-display devices are predetermined;
a transmission-data-generating unit selecting specific screen data from among the set of the screen data by following the correspondence and the displaying order, and generating transmission data that each of said image-display devices is to display based on the selected specific screen data; and
a transmission unit transmitting the transmission data through said bus interface to each of said image-display devices.
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10. An image-display system comprising:
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a computer including a primary image-display device that displays a document including a plurality of pages;
a plurality of image-display devices that are connected to said computer, and display the document; and
a user interface that relates a specific page in the document to a specific image-display device among said image-display devices. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method of controlling screen data displayed on a plurality of image-display devices connected to a control device through a bus interface, said method comprising the steps of:
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storing a set of the screen data whose correspondence to each of said image-display devices and a displaying order of said screen data to be displayed on said image-display devices are predetermined, in said control device;
selecting the screen data corresponding to each of said image-display devices from among the set of the screen data by following the correspondence and the displaying order; and
updating the screen data displayed on each of said image-display devices simultaneously based on the selected screen data through the bus interface. - View Dependent Claims (19)
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20. A method of controlling screen data displayed on a plurality of image-display devices connected to a control device through a bus interface, said method comprising the steps of:
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storing a set of the screen data whose correspondence to each of said image-display devices and a displaying order of said screen data to be displayed on said image-display devices are predetermined, in said control device;
selecting the screen data corresponding to each of said image-display devices from among the set of the screen data by following the correspondence and the displaying order;
generating transmission data that each of said image-display devices is to display based on the selected screen data; and
transmitting the transmission data to each of said image-display devices through said bus interface. - View Dependent Claims (21, 22)
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23. A record medium readable by a machine, tangibly embodying a program of instructions executable by the machine to perform method steps for controlling images displayed on a plurality of image-display devices connected to an image-transmitting device through a bus interface, said method steps comprising:
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storing a set of screen data whose correspondence to each of said image-display devices and a displaying order of said screen data to be displayed on said image-display devices are predetermined, in said control device;
selecting the screen data corresponding to each of said image-display devices from among the set of the screen data by following the correspondence and the displaying order;
generating transmission data that each of said image-display devices is to display based on the selected screen data; and
transmitting the transmission data to each of said image-display devices through said bus interface. - View Dependent Claims (24)
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Specification