Electronic attenuator apparatus

Details Electronic attenuator apparatus Electronic attenuator apparatus

1979-04-19

1981-06-30

Shoop, William M.

Electricity: power supply or regulation systems

External or operator controlled

Using an impedance as the final control device

179 1D, 179 1N, 455249, H01P 122

Patent

active

042765080

ABSTRACT:
An electronic attenuator includes voltage controlled attenuators, memory circuits and a plurality of switches. The memory circuit stores a level signal selectively provided by setting the switches and supplies it to the voltage controlled attenuator which in response to the level signal attenuates an input signal applied thereto.

REFERENCES:
patent: 3100851 (1963-08-01), Ross et al.
patent: 3559144 (1971-01-01), Isaacs
patent: 3865982 (1975-02-01), Feldman et al.
patent: 3902398 (1975-09-01), Nakada et al.
patent: 3977291 (1976-08-01), Southard

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