Circuit arrangement for the transmission and presentation of an

Details Circuit arrangement for the transmission and presentation of an Circuit arrangement for the transmission and presentation of an

1975-07-29

1977-04-19

Martin, John C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

178DIG36, 128 21A, 340212, 358168, H04N 702, A61B 504, H01R 1350

Patent

active

040189864

ABSTRACT:
A circuit arrangement for the transmission and presentation of an analog signal with a video signal, which permits analog signals which incorporate particular measured values or data, to be subverted into a video signal, to be transmitted with the video signal or, for example, stored on a magnetic tape, and then to be removed as analog values. Concurrently, the analog signals should be presented within the video picture so as to be intelligible to the viewer of the television picture screen. For purposes of blending into the video signal (BAS-signal), there is provided a bar or spike impulse transmitter which is synchronized by the synchronizing impulses of the BAS-signal, which generates bar impulses for producing at least one bar of constant brightness on the television picture screen and transmits this to a mixer stage in which the bar impulses are superimposed on the BAS-signal, and wherein a keying or modulating circuit is arranged between the bar impulse transmitter and the mixer stage to which there is transmitted the analog signal and which so modulates the bar impulses in dependence upon the signal so that the length of the bar on the picture screen corresponds to the analog signal.

REFERENCES:
patent: 3530236 (1970-09-01), Marko
patent: 3578904 (1971-05-01), Dewey et al.
patent: 3742136 (1973-06-01), Olsson
patent: 3798366 (1974-03-01), Hunt et al.

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