Radio frequency energy detection circuitry

Details Radio frequency energy detection circuitry Radio frequency energy detection circuitry

1989-03-01

1990-05-01

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307310, 307354, 307362, 455214, H03K 5153, H03K 524

Patent

active

049221329

ABSTRACT:
Radio frequency energy detection circuitry for changing the logic state of an output signal from an initial state to a second state in response to received radio frequency energy exceeding a first predetermined power level, such circuitry being non-responsive to fades in such received radio frequency signal by preventing the second state of the output signal from reverting to the initial state until the power level of the received radio frequency energy falls below a second, lower predetermined power level.

REFERENCES:
patent: 3965371 (1976-06-01), Sato et al.
patent: 4185251 (1980-01-01), Brown, Jr. et al.
Malmstadt et al., "Linear and Nonlinear Op Amp Applications (Chapter 8)", Electronics and Instrumentation for Scientists (1981), pp. 195-199.

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