Method and apparatus for the recognition of individually spoken

Details Method and apparatus for the recognition of individually spoken Method and apparatus for the recognition of individually spoken

1988-10-20

1990-02-20

Harkcom, Gary V.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

G10L 100, G10L 500, G10L 300

Patent

active

049033042

ABSTRACT:
A system for recognizing individually spoken words includes an acousto-electric transducer with a controllable amplifier and a high-pass filter connected to a level calculation path for calculating the level of the output signal by detecting the signal envelope and converting the envelope signal to a 1-bit digital signal to be supplied to a microprocessor. A signal analysis path is also connected to the transducer and includes a low-pass filter followed by a 1-bit analog to digital converter and a digital processing unit which supplies data units to the microprocessor. Individually spoken words are recognized and actions taken accordingly.

REFERENCES:
patent: 3541259 (1970-11-01), Gilmour
patent: 4038503 (1977-07-01), Moshier
patent: 4516215 (1985-05-01), Hakaridani et al.
patent: 4531228 (1985-07-01), Noso et al.
patent: 4558459 (1985-12-01), Noso et al.
patent: 4592085 (1986-05-01), Watari et al.
patent: 4715065 (1987-12-01), Parker
patent: 4718097 (1988-01-01), Uenoyama

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