Self-checking circuit in microwave equipment

Details Self-checking circuit in microwave equipment Self-checking circuit in microwave equipment

1998-07-21

2000-11-28

Lee, Thomas C.

Data processing: generic control systems or specific application

Generic control system, apparatus or process

Having protection or reliability feature

324 7614, G01S 302

Patent

active

061546828

ABSTRACT:
A self-checking circuit in a microwave equipment comprising: directional couplers each for separating and extracting a portion of a microwave signal from each monitoring point on a microwave main signal path; detectors each for detecting an extracted signal from the directional coupler; multiple temperature measuring means each for measuring temperature of the detector; multiple amplifying means each for amplifying a detected signal from the detector; multiple analog/digital converting means each for converting an output signal of the amplifying means into digital data; an interface for performing interface with an outside with respect to the signal of the temperature measuring means and the digital data of the analog/digital converting means; first storage means for storing signal values transmitted through the interface; second storage means for storing a control program and various data; a central processing circuit for comparing and analyzing the signals stored in the first storage means using the control program and data stored in the second storage means and outputting a result of the comparison and analysis; and means for displaying an output signal of the central processing circuit.

REFERENCES:
patent: 4780685 (1988-10-01), Ferguson
patent: 5367533 (1994-11-01), Schilling
patent: 5396180 (1995-03-01), Hampton et al.
patent: 5521360 (1996-05-01), Johnson et al.
patent: 5956627 (1999-09-01), Goos

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