Process and circuit for sampling according to instantaneous sign

Details Process and circuit for sampling according to instantaneous sign Process and circuit for sampling according to instantaneous sign

1988-01-20

1990-03-13

Shoop, Jr., William M.

Coded data generation or conversion

Sample and hold

364487, 341123, H03M 114

Patent

active

049086227

ABSTRACT:
An unkown signal is sampled by simultaneously comparing its value with that of each of a plurality of predetermined monitoring levels. An independent time variable is recorded that represents the instant when the signal has a value equal to that of a given monitoring level. Equality of the signal value to that of a given level is detected regardless of whether the signal has increased or decreased to that value. The values of the monitoring levels are changed automatically whenever the signal has a value greater than the highest value monitoring level or less than the lowest value monitoring level. Signal sections having infinitely high rates of change over time may thus be accurately sampled and reconstructed.

REFERENCES:
patent: 4132947 (1979-01-01), Weischedel et al.
patent: 4142146 (1979-02-01), Schumann et al.
patent: 4291299 (1981-09-01), Hinz et al.
patent: 4297680 (1981-10-01), Koeman

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