Digital image exchange system

Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...

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380 5, 380 18, 380 34, 380 50, 358 86, 358425, 370124, H04K 100

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active

048916331

ABSTRACT:
A digital image exchange system comprises a data transmission line, at least one video RAM, at least one video signal generator for accessing data from the video RAM and for developing at least two video signals corresponding respectively to the accessed data, and at least one modulator for modulating the video signals to form transmitted signals in at least two different frequency bands to be transmitted on the data transmission line. At least one demodulator is coupled to the transmission line at a location remote from the modulator for demodulating the transmitted signals in each of the at least two frequency bands to form at least two corresponding video signals; and at least one video display device is operatively coupled with the demodulator for displaying visual images corresponding to the respective video signals.

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