Sensing coil in hearing aid

Details Sensing coil in hearing aid Sensing coil in hearing aid

1980-12-01

1982-10-12

Fuller, Benjamin R.

179 1C, 179107FD, H04B 500, H04R 2500

Patent

active

043540619

ABSTRACT:
A sensing coil unit for a hearing aid is made up of a sensing coil which is in the form of a cylinder one end of which is heavier than the other end and is floated in the liquid in a sealed container, so that the sensing coil is vertical at all times irrespective of the positions of the hearing aid thereby to maintain constant its magnetic coupling condition with the inductance coil which is laid to transmit voice signals to the sensing coil.

REFERENCES:
patent: 1601063 (1926-09-01), Frederick
patent: 3770911 (1973-11-01), Knowles et al.
patent: 3819860 (1974-06-01), Miller
patent: 3898565 (1975-08-01), Takeuchi et al.

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