04548082 is referenced by 151 patents and cites 12 patents.

A hearing aid including a microphone for generating an electrical output from sounds external to a user of the hearing aid, an electrically driven receiver for emitting sound into the ear of the user of the hearing aid, and circuitry for driving the receiver. The circuitry drives the receiver in a self-generating mode activated by a first set of signals supplied externally of the hearing aid to cause the receiver to emit sound having at least one parameter controlled by the first set of externally supplied signals and then drives the receiver in a filtering mode, activated by a second set of signals supplied externally of the hearing aid, with the output of the external microphone filtered according to filter parameters established by the second set of the externally supplied signals. Other forms of the hearing aid, apparatus for supplying the sets of signals to the hearing aid in a total system, and methods of operation are also described.

Title
Hearing aids, signal supplying apparatus, systems for compensating hearing deficiencies, and methods
Application Number
6/645004
Publication Number
4548082
Application Date
August 28, 1984
Publication Date
October 22, 1985
Inventor
Gerald R Popelka
Ladue
MO, US
Robert E Morley Jr
Richmond Heights
MO, US
A Maynard Engebretson
Ladue
MO, US
Agent
Senniger Powers Leavitt and Roedel
Assignee
Central Institute for the Deaf
MO, US
IPC
H04R 29/00
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