Feedback control

Details Feedback control Feedback control

1982-04-28

1985-01-15

Mullins, James B.

Amplifiers

Signal feedback

Frequency responsive feedback means

330294, H03F 132

Patent

active

044940742

ABSTRACT:
Headphones have a small cavity between the diaphragm and the ear canal with a microphone in the cavity closely adjacent to the diaphragm providing a feedback signal that is combined with the input electrical signal to be reproduced by the headphones to provide a combined signal that is power amplified for driving the diaphragm.

REFERENCES:
Ralph Smith, "Circuits Devices and Systems", pp. 744-745.

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