Oscillators – Solid state active element oscillator – Transistors
Patent
1976-12-02
1978-01-03
Grimm, Siegfried H.
Oscillators
Solid state active element oscillator
Transistors
330109, 330293, 330302, 331135, 331179, 333 29, 333 70R, H03B 502
Patent
active
040669815
ABSTRACT:
A fiber optic delay line-controlled oscillator or tuned amplifier. Two embodiments are shown and described, one employing a single solid state active element and the other employing two such elements. The fiber optic delay line or lines employed are combined electronic-to-light transducer(s) supplying the delay line or lines and optical-to-electronic transducer(s) responsive to the optical delay line or lines output(s). That combination provides the tuned or oscillatory feedback path. In one embodiment, a plurality of delay lines are effectively switched into the circuit discretely and selectively in response to a staircase control function.
REFERENCES:
patent: 3717769 (1973-02-01), Hubbard et al.
patent: 3943358 (1976-03-01), Reymond et al.
patent: 3962652 (1976-06-01), Zarin et al.
Grimm Siegfried H.
International Telephone and Telegraph Corporation
O'Neil William T.
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