Electrical apparatus with digitally set transfer function

Details Electrical apparatus with digitally set transfer function Electrical apparatus with digitally set transfer function

1992-09-24

1994-07-05

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Delay lines including a lumped parameter

333156, H03H 720

Patent

active

053271076

ABSTRACT:
An electrical apparatus has a number of units (1 to 6), each of which is capable of presenting a transfer function of a different value to an input signal. It also includes control circuitry (7, 9) whereby a desired selection of units (1 to 6) can be made so as to present to the input signal a total value of desired transfer function. The values of the units are chosen such that the ratio (B) between a function value and the next smaller value is less than 2:1.

REFERENCES:
patent: 3725686 (1973-04-01), Ustach
patent: 4063250 (1977-12-01), Fenwick
patent: 4549152 (1985-10-01), Kumar
patent: 4599585 (1986-07-01), Vorhaus et al.
patent: 4841552 (1989-06-01), Kingston
patent: 4994773 (1991-02-01), Chen et al.
patent: 5180998 (1993-01-01), Willems

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