Stethoscope having pseudostereophonic binaural enhancement

Details Stethoscope having pseudostereophonic binaural enhancement Stethoscope having pseudostereophonic binaural enhancement

1986-10-09

1988-11-08

Isen, Forester W.

Electrical audio signal processing systems and devices

Stethoscopes, electrical

381 17, 381 25, 381 74, A61B 704

Patent

active

047838140

ABSTRACT:
A stethoscope having a monophonic electrical sensor which feeds electrical signals corresponding to heart sounds to a transversal filter to produce pseudostereophonic signals at split outputs which may be used to power dual earphones for binaural listening. The electronic processing of the heart sounds in the transversal filter enables the listener to differentiate the different sounds of the heart.

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patent: 4239939 (1980-12-01), Griffis
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patent: 4359605 (1982-11-01), Haramoto et al.
patent: 4394535 (1983-07-01), Bingham et al.
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patent: 4594731 (1986-06-01), Lewkowicz
patent: 4694497 (1987-09-01), Kasai et al.
patent: 4706287 (1987-11-01), Blackmer et al.
Chamberlin, Musical Applications of Microprocessors, 1980, pp. 451-452.
National Semiconductor, Linear Applications, vol. 1, 1970, p. AN32-8.

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