Computer display screen monitoring system
First Claim
Patent Images
1. A computer display screen monitoring system comprising:
- a plurality of stations; and
means, including address decoding means and multiplexing means in each of said stations, for selectively transmitting a video signal from one of said stations to one or more other stations in said system in real time wherein said plurality of stations are coupled in series in a closed-loop fashion in a predetermined sequence, said multiplexing means in each of said stations comprises a first multiplexer for transmitting a video signal received by or generated in said station to the next station in said sequence and a second multiplexer for displaying a video signal received by or generated in said station on a display screen in said station, each of said stations has a predetermined address, said address decoding means in each of said stations comprises means for decoding said address of said station; and
means coupling said address decoding means to said first and said second multiplexers for controlling said multiplexers.
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Abstract
A computer display screen monitoring system comprising a master station and a plurality of user stations for displaying text and graphic data appearing on one display screen in the system on one or more other display screens in the system in real time. Multiplexers are provided in each of the stations in the system for selectively transferring video as well as audio signals (when provided) between the stations in response to function codes and addresses identifying the stations.
254 Citations
7 Claims
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1. A computer display screen monitoring system comprising:
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a plurality of stations; and means, including address decoding means and multiplexing means in each of said stations, for selectively transmitting a video signal from one of said stations to one or more other stations in said system in real time wherein said plurality of stations are coupled in series in a closed-loop fashion in a predetermined sequence, said multiplexing means in each of said stations comprises a first multiplexer for transmitting a video signal received by or generated in said station to the next station in said sequence and a second multiplexer for displaying a video signal received by or generated in said station on a display screen in said station, each of said stations has a predetermined address, said address decoding means in each of said stations comprises means for decoding said address of said station; and
means coupling said address decoding means to said first and said second multiplexers for controlling said multiplexers. - View Dependent Claims (2)
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3. A computer display screen monitoring system comprising:
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a plurality of stations coupled together in series in a closed-loop fashion, each of said stations having a predetermined address, a source of video signals, a monitor for displaying video signals, a first multiplexer having a first input, a second input and an output, a second multiplexer having a first input, a second input and an output, means for coupling said source of video signals to said first input in said first and said second multiplexers, means for coupling said output of said second multiplexer to said monitor, and decoding means responsive to a plurality of function codes and said predetermined address coupled to said first and said second multiplexers for controlling said multiplexers, and wherein said system further comprises; means for coupling said output of said first multiplexer in each one of said stations to said second input in said first and said second multiplexer in the next station in said series for selectively transferring video signals from said source in a selected first one of said stations in said series to said monitor in a selected one or more of the other stations in said series. - View Dependent Claims (4, 5, 6, 7)
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Specification