Broad band coupling arrangement

Details Broad band coupling arrangement Broad band coupling arrangement

1980-07-29

1982-08-24

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

307289, 307291, 179 18GF, 34082586, H04Q 900, H03K 1920

Patent

active

043463819

ABSTRACT:
The disclosure relates to coupling point switches in ECL technology. The coupling point switches are each formed by means of a differential amplifier circuit with two emitter-coupled high frequency transistors; in order to reduce the power consumption, a switching transistor is inserted in the common emitter current circuit, the switching transistor only being conductive when the appertaining coupling point is driven into the through-connected condition. The disclosure can particularly be employed in the distribution of video signals.

REFERENCES:
patent: 3550087 (1970-12-01), Ross et al.
patent: 3953746 (1976-04-01), Fett
patent: 4237387 (1980-12-01), Devendorf et al.
patent: 4276485 (1981-06-01), Rydval
Pfannschmidt "Limitation of Transmission Rate in High-Speed TDM-Switching Networks Using Schottky-TTL Circuit Technology", Proceedings 1976 International Zurich Seminar of Digital Communications, pp. C3.1-C3.6.

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