US PATENT SUBCLASS 381 / 316
.~ Frequency transposition
Current as of:
June, 1999
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381 /
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ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES
312
DF
HEARING AIDS, ELECTRICAL
{9}
316
.~ Frequency transposition
DEFINITION
Classification: 381/316
Frequency transposition:
(under subclass 312) Subject matter in which some portion of a received audio signal is shifted in frequency prior to being delivered to the hearing aid's loudspeaker in order to enhance audibility.
SEE OR SEARCH THIS CLASS, SUBCLASS:
320, for spectral control in the hearing aid