Electronic device forming a programmable miniature hearing aid,

Details Electronic device forming a programmable miniature hearing aid, Electronic device forming a programmable miniature hearing aid,

1993-06-24

1995-03-28

Peng, John K.

Electrical audio signal processing systems and devices

Sound effects

Reverberators

381 68, 381 682, 381 684, 381 686, 381 69, H04R 2500

Patent

active

054024943

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.

REFERENCES:
patent: 4192565 (1980-03-01), Gianni
patent: 4396806 (1992-07-01), Anderson
patent: 4398235 (1983-08-01), Lutz et al.
patent: 4539440 (1985-09-01), Sciarra
patent: 4596902 (1986-06-01), Gilman
patent: 5001762 (1991-03-01), Barwig et al.
patent: 5083312 (1992-01-01), Newton et al.
TTL Cookbook, by Don Lancaster, 1974, p. 170.
Proceedings of the IEEE 1988 Custom Integrated Circuits Conference, "A Set of 4 IC's in CMOS Technology For A Programmable Hearing Aid", pp. 12.6.1-12.6.4.
Gordon M. Jacobs et al, "Design Techniques for MOS Switched Capacitor Ladder Filters," IEEE Journal of Solid-State Circuits, vol. SC-13, No. 6, pp. 267-274, Dec. 1978.

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