Polarity detector

Details Polarity detector Polarity detector

1996-04-15

1998-11-03

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By polarity

327 30, 3401462, G01R 1900

Patent

active

058314555

ABSTRACT:
A polarity detector 100 wherein bistables 105 and 107 selectively sample the sequence of pulses and store samples. The samples and the output signal 125, stored by the bistable 109, are compared by the logic circuit 108. When the stored samples have identical polarity and the polarity of the output signal 125 is not identical to the polarity of the samples, then the polarity of the output signal 125 is changed to the polarity of the samples. However, when the polarity of the samples and that of the output signal 125 are not identical, then the polarity of the output signal 125 remains unchanged. In addition, when the polarity of the stored samples are not identical, the polarity of the output signal 125 remains unchanged. Hence, the polarity of the output signal 125 indicates the polarity of the sequence of pulses 120.

REFERENCES:
patent: 4551031 (1985-11-01), Ishikawa et al.
patent: 4748438 (1988-05-01), Mickeal
patent: 4797652 (1989-01-01), Hall
patent: 5365527 (1994-11-01), Honma

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