Fault detector for communications equipment using exclusive or c

Details Fault detector for communications equipment using exclusive or c Fault detector for communications equipment using exclusive or c

1984-12-31

1987-04-14

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

455 67, 307471, 324 52, G01R 3102

Patent

active

046582061

ABSTRACT:
A fault detector is designed to detect abnormality of a transmission apparatus which transmits burst type signals such as a satellite communications equipment by wave-reforming the input and the output signal of the transmission apparatus, and executing an exclusive OR operation to both wave-reformed signals. An exclusive OR circuit which executes an exclusive OR operation by detecting whether either of the two wave-reformed signals exists at the rising or the falling of the other wave-reformed signal provides a highly precise result. An exclusive OR circuit which assures that the signal level is within a predetermined range at wave-reforming the output signal of the transmission apparatus enhances the preciseness to a greater extent in detection of abnormality.

REFERENCES:
patent: 4020422 (1977-04-01), Underhill
patent: 4023154 (1977-05-01), Comeaux
patent: 4151459 (1979-04-01), Fayolle et al.

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