Sampling method and circuit

Details Sampling method and circuit Sampling method and circuit

1991-09-24

1993-01-19

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307351, 328117, 328151, H03K 5153, G11C 2702

Patent

active

051809311

ABSTRACT:
A method and circuit for sampling input waveform signals at a predetermined periodic rate by detecting a peak and a bottom value during each period. The method further includes holding a peak value and a bottom value of an input waveform signal whenever they are generated as hold values and resetting the hold value to the current input waveform signal level so as to obtain a high-fidelity sampling output. The peak level or the bottom level is generated as a sampling value according to which is operating, the peak hold or bottom hold, at the sampling time. If both are currently not operating, then outputting the hold which was the last in operation.

REFERENCES:
patent: 3693028 (1972-09-01), Fussell
patent: 3727144 (1973-04-01), Sendo
patent: 4183087 (1980-01-01), Huelsman
patent: 4363976 (1982-12-01), Minor
patent: 4737730 (1988-04-01), Ishiwata et al.

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