Electronic device forming a programmable miniature hearing aid, in particular of the intraductal type
First Claim
1. An electronic, miniature programmable hearing aid of the intraductal type, comprising a microphone and filtering and amplification means associated with a battery powered sound reproduction transducer, wherein(a) said filtering and amplification means has at least one integrated circuit, comprising at least one oscillator associated with at least one d.c. voltage step-up converter;
- (b) said filtering and amplification means is powered by a miniature low voltage battery; and
(c) said amplification means is powered by said miniature low voltage battery and is in a single integrated circuit provided with external decoupling capacitors wherein said hearing aid is introductal and programmable in frequency response.
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Abstract
A programmable intraductal hearing aid includes a microphone, a dynamically programmable filter means, an adjustable power amplifier, and a sound reproduction transducer, powered by a battery. The filter having controlled capacitors is made, together with a programming memory and its interface, in the form of at least one integrated circuit including at least one oscillator associated with at least one d.c. voltage step-up transformer for energizing the memories, the whole set being powered by a miniature low voltage battery. A power amplifier, powered by the same battery is made in a single integrated circuit provided with external decoupling capacitors.
46 Citations
22 Claims
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1. An electronic, miniature programmable hearing aid of the intraductal type, comprising a microphone and filtering and amplification means associated with a battery powered sound reproduction transducer, wherein
(a) said filtering and amplification means has at least one integrated circuit, comprising at least one oscillator associated with at least one d.c. voltage step-up converter; -
(b) said filtering and amplification means is powered by a miniature low voltage battery; and (c) said amplification means is powered by said miniature low voltage battery and is in a single integrated circuit provided with external decoupling capacitors wherein said hearing aid is introductal and programmable in frequency response. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electronic miniature programmable hearing aid of the intraductal type comprising:
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(a) an amplifier; and (b) a switched capacitor filter bank receiving a signal from said amplifier, said switched capacitor filter bank having frequency response characteristics programmable in amplitude and in slope, said electronic miniature programmable hearing aid being intraductal.
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11. An electronic miniature programmable hearing aid of the intraductal type comprising:
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(a) an amplifier; and (b) a switched capacitor filter bank receiving a signal from said amplifier, said switched capacitor filter bank having frequency response characteristics programmable in amplitude and in slope, said electronic miniature programmable hearing aid being intraductal, wherein said switched capacitor filter bank comprises a sequence of filters, wherein said signal is sequentially transmitted through selected filters in said switched capacitor filter bank, each filter having a programmable frequency and amplitude response characteristic. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification