Picture display device and picture display method
First Claim
1. A picture display device for displaying a video signal supplied from a data processing device, said picture display device comprising:
- display means for displaying a video signal;
video memory interface means for assigning, to each one of a plurality of video signals, memory addresses corresponding to that video signal, the plurality of video signals being respectively associated with a plurality of data processing devices such that a given one of the plurality of video signals is supplied from its associated data processing device;
display control means for controlling said display means to concurrently display the plurality of video signals read from each of the memory addresses associated with the plurality of video signals;
input device connection means for receiving a first control signal corresponding to a user operation on an input device; and
control signal output means for outputting the first control signal supplied from said input device to the plurality of data processing devices.
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0 Petitions
Accused Products
Abstract
A picture display device displays a video signal supplied from a data process device. Bi-directional communication is carried out with each of a plurality of data process devices. A plurality of video signals is combined into one screen corresponding to information of the picture size of each of the plurality of video signals obtained by the bi-directional communication with each of the plurality of data process devices. A video signal, outputted when the plurality of video signals is combined, is displayed. A second control signal is generated which controls the plurality of data process devices and which corresponds to a first control signal that corresponds to a user operation. The first control signal and the second control signal are transmitted to the plurality of data process devices. The plurality of data process devices also communicate bi-directionally with each other.
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Citations
19 Claims
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1. A picture display device for displaying a video signal supplied from a data processing device, said picture display device comprising:
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display means for displaying a video signal; video memory interface means for assigning, to each one of a plurality of video signals, memory addresses corresponding to that video signal, the plurality of video signals being respectively associated with a plurality of data processing devices such that a given one of the plurality of video signals is supplied from its associated data processing device; display control means for controlling said display means to concurrently display the plurality of video signals read from each of the memory addresses associated with the plurality of video signals; input device connection means for receiving a first control signal corresponding to a user operation on an input device; and control signal output means for outputting the first control signal supplied from said input device to the plurality of data processing devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A picture display method for displaying a video signal supplied from a data processing device, said method comprising:
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displaying a video signal; assigning, to each one of a plurality of video signals, memory addresses corresponding to that video signal, the plurality of video signals being respectively associated with a plurality of data processing devices such that a given one of the plurality of video signals is supplied from its associated data processing device; concurrently controlling displays of a plurality of video signals read from each of the memory addresses associated with the plurality of video signals; and outputting a first control signal to the plurality of data process devices, the first control signal being supplied from an input device connected to an input device connection means, the first control signal corresponding to a user operation.
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10. A picture display device for displaying a video signal supplied from a data process device, the picture display device comprising:
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communication means for bi-directionally communicating with each of a plurality of data process devices to receive associated control information for each of a plurality of received video signals; frequency measurement means for measuring, for each one of the plurality of received video signals, the frequency of the horizontal synchronous signal and the frequency of the vertical synchronous signal associated with that video signal; video process means for combining the plurality of received video signals into a combined video signal for display on one screen according to associated picture size information for each of the plurality of video signals, the picture size information associated with a given one of the plurality of video signals being based on the measured frequency of the horizontal synchronous signal and the measured frequency of the vertical synchronous signal associated with that video signal; display means for displaying the combined video signal that is outputted from said video signal process means; input device connection means for connecting to an input device and for receiving, from the input device, a first control signal based on a user input operation; transmission means for generating a second control signal for controlling the plurality of data process devices, the second control signal being based on the first control signal outputted from said input device connection means, and for causing said communication means to transmit the first control signal and the second control signal to the plurality of data process devices; and communication control means for controlling said communication means to communicate with each of the plurality of data process devices. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of displaying a video signal supplied from a data process device, said method comprising:
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bi-directionally communicating with each one of a plurality of data process devices to receive associated control information for each of a plurality of received video signals; measuring, for each one of the plurality of received video signals, the frequency of the horizontal synchronous signal and the frequency of the vertical synchronous signal associated with that video signal; combining the plurality of received video signals into a combined video signal for display on one screen according to associated picture size information for each of the plurality of video signals, the picture size information associated with a given one of the plurality of video signals being based on the measured frequency of the horizontal synchronous frequency of the vertical synchronous signal associated with that video signal; displaying the combined video signal; receiving, from an input device, a first control signal based on a user input operation; generating a second control signal for controlling the plurality of data process devices, the second control signal being based on the first control signal; transmitting the first control signal and the second control signal to the plurality of data process devices; and controlling communications with the plurality of data process devices such that the plurality of data process devices bi-directionally communicates with each other.
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Specification