Mini hearing aid

Details Mini hearing aid Mini hearing aid

1983-11-04

1986-12-09

Rubinson, Gene Z.

Electrical audio signal processing systems and devices

Sound effects

Reverberators

381 687, 361401, H04R 2502, H05G 104

Patent

active

046285270

ABSTRACT:
A miniature hearing aid (1) includes a microphone (12), a receiver (14) an amplifier (15), and a battery connectable via a contact (18), all of which are contained in a housing (2,3). The amplifier is constructed of a printed circuit board (20) and a plurality of components (21). In order to save space, the components (21) are countersunk in openings (24) in the circuit board (20) to reduce the vertical dimension of the amplifier. The openings (24) are used as temporary supports and for exact positioning for the components (21) by making them rectangular with cut off edges.

REFERENCES:
patent: 2495546 (1950-01-01), Posen
patent: 2959645 (1960-11-01), Ladd
patent: 2990498 (1961-06-01), Evans
patent: 3049647 (1962-08-01), Lincoln
patent: 3702953 (1972-11-01), Fauth
patent: 4054938 (1977-10-01), Morris

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