Threshold selection circuit

Details Threshold selection circuit Threshold selection circuit

1979-02-02

1981-05-19

Orsino, Jr., Joseph A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

307361, 328147, 328150, 358125, H04N 514

Patent

active

042688639

ABSTRACT:
A threshold selection circuit, suitable for a processing unit for the processing of video signals obtained from an angle tracking device, is provided with a number (N) of video integrators to receive video signals above certain threshold levels decreasing in numerical order, and with a weighting network, connected to the video integrators, for selecting and assigning the threshold of the lowest numbered video integrator for the processing unit, of which video integrator the output signal does not exceed a fixed fraction of the output signal of the video integrator operating with the next lower threshold.

REFERENCES:
patent: 3041469 (1962-06-01), Ross
patent: 3699446 (1972-10-01), Sainte-Beuve
patent: 3790706 (1974-02-01), Gubala et al.
patent: 3903357 (1975-09-01), Woolfson et al.
patent: 3988534 (1976-10-01), Sacks

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