Rechargeable hearing aid

Details Rechargeable hearing aid Rechargeable hearing aid

2005-11-09

2009-11-17

Ensey, Brian (Department: 2614)

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

C381S314000, C381S322000

Reexamination Certificate

active

07620195

ABSTRACT:
A hearing aid having a rechargeable battery and a charger for charging the battery includes a first microphone and a first speaker in the hearing aid and a second microphone and a second speaker in the charger for acoustically transferring data between the hearing aid and the charger. The hearing aid can detect the charge state of a battery and send a signal to the charger indicative of the charge state. The charger also includes a chamber for receiving at least a portion of the hearing aid.

REFERENCES:
patent: 3297933 (1967-01-01), McCarthy
patent: 3493695 (1970-02-01), Stork
patent: 4379988 (1983-04-01), Mattatall
patent: 5876425 (1999-03-01), Gord et al.
patent: 6310960 (2001-10-01), Saaski et al.
patent: 6658124 (2003-12-01), Meadows
patent: 6888948 (2005-05-01), Hagen et al.
patent: 2003/0171787 (2003-09-01), Money et al.

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