Electrotactile vocoder

Details Electrotactile vocoder Electrotactile vocoder

1989-11-29

1991-01-01

Anderson, Lawrence E.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381 48, 381 49, 381 50, 340407, 1284205, G10L 302

Patent

active

049824325

ABSTRACT:
An electrotactile vocoder for persons having impaired hearing in which electrical stimulation is applied to a multiplicity of electrodes in contact with either side of each finger so as to electrically stimulate the digital nerves of the user under the control of stimulator circuitry which is in turn controlled by processing circuitry for a speech signal received by a directional microphone worn on the ear of the user. The speech processor is suitably of the type described in U.S. Pat. No. 4,441,202 Tong et al. modified to cause stimulation of the digital nerves via the eight finger electrodes and a common electrode held in contact with the wrist of the user.

REFERENCES:
patent: 2150364 (1939-03-01), Dudley
patent: 3612061 (1971-10-01), Collins
patent: 3831296 (1974-08-01), Hagle
patent: 4390756 (1983-06-01), Hoffmann et al.
patent: 4441202 (1984-04-01), Tong et al.
patent: 4581491 (1986-04-01), Boothroyd

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