Electrical audio signal processing systems and devices – Stethoscopes – electrical
Patent
1989-08-14
1991-03-26
Isen, Forester W.
Electrical audio signal processing systems and devices
Stethoscopes, electrical
128715, A61B 704
Patent
active
050036050
ABSTRACT:
A stethoscope, operable in an acoustic or electronically augmented mode, is disclosed. In one electronically augmented mode of operation, the stethoscope simultaneously provides the listener with combined unmodified, familiar audible sounds and sounds which have been electronically augmented to bring them within the human auditory range. Additionally, a timing sound may be provided along with the unmodified, familiar audible sounds and electronically augmented sounds to assist the listener in determining when sounds occur in the heart cycle. The timing sound may be enabled in the acoustic mode of stethoscope operation so that the listener can place familiar audible sounds within the heart cycle.
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Epstein Paul
Phillipps Patrick G.
Tweed David G.
CardioDyne, Inc.
Isen Forester W.
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