Channelized frequency memory system employing feedback

Details Channelized frequency memory system employing feedback Channelized frequency memory system employing feedback

1982-03-31

1984-11-20

Grimm, Siegfried H.

Oscillators

Plural oscillators

Selectively connected to common output or oscillator...

331 56, 331173, 343 5SA, 343 171R, G01S 730, H03B 500

Patent

active

044841558

ABSTRACT:
A frequency memory module responsive to an input relatively short duration RF burst signal of center frequency f for producing an output signal at center frequency f for a relatively long duration includes a narrow band filter tuned to pass frequency f which is receptive of the input signal, an amplifier connected to the output of the filter and feedback means connected from the output of the amplifier to the input of the filter. Because of the feedback the frequency memory module sustains oscillations at frequency f long after the input pulse is removed from the filter.

REFERENCES:
patent: 4145691 (1979-03-01), Freeling et al.
patent: 4398196 (1983-08-01), Wiegand

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