发明名称 Tone generator for use with hearing aids
摘要 A programmable tone generator provides a signal that can be used by a hearing aid wearer to set the gain of the hearing aid such that the hearing threshold is at a prescribed corrected level.
申请公布号 US5266919(A) 申请公布日期 1993.11.30
申请号 US19910678044 申请日期 1991.04.01
申请人 COOK, PERRY R.;BOYD, LEO 发明人 COOK, PERRY R.;BOYD, LEO
分类号 G08B3/10;H04R25/00;(IPC1-7):G08B3/00 主分类号 G08B3/10
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