Biological signal source amplifier

Details Biological signal source amplifier Biological signal source amplifier

1982-05-04

1984-08-28

Kamm, William E.

Surgery

Truss

Pad

128902, A61B 504

Patent

active

044678134

ABSTRACT:
A biological signal source amplifier having a rapid overload recovery capability and an output reference level translation feature. The amplifier responds to input signals of excessive amplitude by actively decreasing the response time of a reactive input coupling circuit when the input signal crosses predetermined dynamic limits. A differential amplifier is used in such a way as to produce an output referenced to a voltage level other than power supply ground. A level translation feature is provided for translating the output signal to the input of a subsequent circuit having a different reference level without introducing a dc offset or other associated amplitude distortion, or effects of capacitive coupling on low-frequency response.

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patent: 4261365 (1981-04-01), Nordling
patent: 4300566 (1981-11-01), Stindt

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