05721783 is referenced by 630 patents and cites 27 patents.

A hearing aid or audio communication system includes an earpiece (10) that can be hidden in the ear canal, and which communicates wirelessly with a remote processor unit, or RPU (16), that enhances audio signals and can be concealed under clothing. Sounds from the environment are picked up by a microphone (12) in the earpiece and sent with other information over a two-way wireless link (17) to the RPU (16). The wireless link (17) uses microwaves for component miniaturization. Furthermore, use of radar technology to implement the wireless link (17), with an RPU (16) interrogator and earpiece (10) transponder, reduces earpiece size and power, as no microwave oscillator is needed in the earpiece (10). Optional secondary wireless link circuitry (19) can be used between the RPU (16) and a cellular telephone system or other sources of information. Electronic voice recognition and response can control system operation.

Title
Hearing aid with wireless remote processor
Application Number
8/479629
Publication Number
5721783
Application Date
June 7, 1995
Publication Date
February 24, 1998
Inventor
James C Anderson
40 Aran Rd., Westwood, 02090
MA, US
Agent
Martin M Santa
Richard F Benway
IPC
H04R 25/00
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