Radiant energy – Ionic separation or analysis – Static field-type ion path-bending selecting means
Patent
1976-12-20
1979-07-03
Griffin, Robert L.
Radiant energy
Ionic separation or analysis
Static field-type ion path-bending selecting means
179170HF, 325 13, 328164, G02B 514
Patent
active
041601572
ABSTRACT:
A feedback circuit and method are disclosed for restoring high frequency digital signals degraded by signal transmitting means whose upper frequency limit is below that required for accurate signal transmission. The restored digital output signal is supplied by a digitizing circuit which produces a signal having first and second values in response to input signal amplitudes respectively less than and greater than a digitizing threshold. The input signal to the digitizing circuit comprises a combination of the degraded signal, and a feedback signal generated by passing the output signal through a feedback circuit whose response to high frequency signals is substantially identical to that of the signal transmitting means.
REFERENCES:
patent: 2797340 (1957-06-01), Bennett
patent: 3979746 (1976-09-01), Jarrett
Gundlach, "Fiber-Optic Developments Spark World-Wide Interest", Electronic, Aug. 5, 1976, (pp. 81-104).
Schmid, "Fiber-Optic Data Transmission: A Practical Low Cost Technology", Electronics, 9-2-76, (pp. 94-99).
Hodapp, "Optical Isolators Yield Benefits in Many Linear Circuits," Electronics, 3-4-76, (pp 105-110).
Coles Edward L.
Griffin Robert L.
Honeywell Inc.
Rubow Charles L.
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