Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Patent
1994-02-14
1995-03-21
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
327 77, 327 50, 327 18, H03K 522
Patent
active
053999118
ABSTRACT:
A pulse detection circuit detects one different pulse within a string of similar pulses for a once per revolution index. The pulse detection circuit comprises a DC averaging means for generating a first threshold voltage from a raw signal. An average comparator receives the first threshold voltage and generates a first output voltage indicative of signal amplitude of the raw signal, as compared to the first threshold voltage. A zero comparator receives the raw signal, compares it to zero, and generates a second output voltage indicative of a pulse. The first and second output voltages are input to a logic sequence to generate a logic output when the one different pulse within the string of similar pulses is detected.
REFERENCES:
patent: 3755745 (1973-08-01), Sapir
patent: 3969677 (1976-07-01), Woyton
patent: 3984701 (1976-10-01), Pieper
patent: 4024458 (1977-05-01), Templin
patent: 4267470 (1981-05-01), Kawakami et al.
patent: 4845379 (1989-07-01), Carlsten
Gambale John M.
Martin Roger A.
Tarricone Mark P.
Callahan Timothy P.
General Electric Company
Shay Bernard E.
Squillaro Jerome C.
Zweizig Jeffrey S.
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