Electrical audio signal processing systems and devices – Binaural and stereophonic – Hearing aid
Patent
1986-10-27
1987-10-20
Isen, Forester W.
Electrical audio signal processing systems and devices
Binaural and stereophonic
Hearing aid
381 67, H04R 500
Patent
active
047019522
ABSTRACT:
A confined system of sound transmission from a frequency attenuation compensated source through plastic pneumatic tubes in series with liquid tubes of considerable length, transmitting audio to and through pneumatic headphones to the ear canals of the user. It is an audio system suitable for use in Nuclear Magnetic Resonance scanning environments and for use in CAT scan environments. The system includes a stereo program source playing into a stereo frequency compensation amplifier driving right and left loudspeaker pneumatic drivers feeding audio to and through long liquid tubes in series with pneumatic tubes extended to left and right earphones of plastic headphones worn by a patient in a scan room environment. The tubes that extend from the electronic audio system equipment outside the scan room through scan room walls to the patient headphones and the headphones themselves are made of plastic or other non-magnetic materials causing no interference with the scanning signals and are not visible on scan pictures produced.
REFERENCES:
patent: Re25652 (1964-10-01), Kennedy
patent: 3920904 (1975-11-01), Blauert et al.
patent: 4347405 (1982-08-01), Davis
patent: 4352200 (1982-09-01), Oxman
patent: 4528690 (1985-07-01), Sedgwick
patent: 4565258 (1986-01-01), Butler et al.
Isen Forester W.
Kintzinger Warren H.
LandOfFree
Frequency attenuation compensated pneumatic headphone and liquid does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Frequency attenuation compensated pneumatic headphone and liquid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency attenuation compensated pneumatic headphone and liquid will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1617146