Method and apparatus for signal compression

Details Method and apparatus for signal compression Method and apparatus for signal compression

1992-07-22

1994-02-08

Mullins, James B.

Amplifiers

Modulator-demodulator-type amplifier

250214A, 330110, 356345, H03F 338, H01J 4014, G01B 902

Patent

active

052851672

ABSTRACT:
The method and apparatus of the invention effects compression of an analog electrical signal (e.g., representing an interferogram) by introducing into it a component that is a cubic function thereof, normally as a nonlinear negative signal in a feedback loop of an Op Amp. The compressed signal will most desirably be digitized and then digitally decompressed so as to produce a signal that emulates the original.

REFERENCES:
patent: 4349787 (1982-09-01), Laupman
patent: 4400583 (1983-08-01), Bloy
patent: 4465978 (1984-08-01), Helmstetter
patent: 4627094 (1986-12-01), Scholz
patent: 4677645 (1987-06-01), Kaniwa et al.
patent: 4710727 (1987-12-01), Rutt
patent: 4899115 (1990-02-01), Christian
patent: 4940947 (1990-07-01), McCartney et al.

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