Method and apparatus for providing a circuit with a smooth trans

Details Method and apparatus for providing a circuit with a smooth trans Method and apparatus for providing a circuit with a smooth trans

1977-07-25

1978-10-24

Ruggiero, Joseph F.

Boots, shoes, and leggings

307229, 328143, 343 12A, 364433, 364573, 364553, G06G 728

Patent

active

041225295

ABSTRACT:
A circuit for generating a smooth signal for use in linearizing an ARINC specified radio altimeter signal, includes an operational amplifier circuit having a piecewise linear transfer function. A time varying periodic signal is added to the radio altimeter signal at the input of the amplifier circuit, and the signal thus produced is filtered to thereby generate a smooth, linear representation of the altimeter signal. In one embodiment, the smoothed signal is differentiated to generate a signal representing the rate of change of the smoothed, linear signal, or altitude.

REFERENCES:
patent: 3560726 (1971-02-01), Platt
patent: 3560727 (1971-02-01), Schussler
patent: 3622770 (1971-11-01), Edelson
patent: 3644836 (1972-02-01), Johnson
patent: 3686478 (1972-08-01), Goldberg et al.
patent: 3974365 (1976-08-01), Johnson

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