Surgery – Truss – Pad
Patent
1984-08-16
1987-01-27
Recla, Henry J.
Surgery
Truss
Pad
A61B 504
Patent
active
046388087
ABSTRACT:
A signal component separating circuit is responsive to a signal having a pulsing component and a reciprocating component for providing a signal corresponding to the pulsing component. The circuit includes first and second channels the outputs of which are coupled to respective inputs of a comparator circuit which produces the signal corresponding to the pulsing component of the input signal.
Each of the channels includes a peak detection and holding circuit which includes a charging and discharging circuit. The second channel peak detection and holding circuit has a faster charging and discharging time than the first channel peak detection and holding circuit. The second channel peak detection and holding circuit attenuates the input signal more than the first channel peak detection and holding circuit. As a result the signal in the first channel is greater in amplitude than the signal in the second channel except when the pulses are present.
REFERENCES:
patent: 2820361 (1958-01-01), Apps
patent: 3689879 (1972-09-01), Brudick
patent: 3879576 (1975-04-01), Okada et al.
patent: 4182315 (1980-01-01), Vas
patent: 4270545 (1981-06-01), Rodler
patent: 4289981 (1981-09-01), Sakamoto et al.
patent: 4357944 (1982-11-01), Mauser
Jaworski Francis J.
RCA Corporation
Recla Henry J.
Smiley Raymond E.
Tripoli Joseph S.
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