Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent
1984-08-20
1991-03-26
Kemeny, Emanuel S.
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Public address system
G10L 500
Patent
active
050036033
ABSTRACT:
A method and apparatus are disclosed for recognizing spoken commands uttered by a user and for generating responsive control signals once the command is recognized. In accordance with this disclosure the audio signal is converted into a series of count bytes representing the time between the audio signal zero crossings, and all the count bytes of the full command are then segmented into equal temporal groups histogram and sorted within each segment into a set of frequency class intervals which are based on a computation of substantially equal byte activity in all the words comprising the command lexicon. In this manner, lower and higher frequency groups are selected for equal significance. The uttered words are then compared against stored words similarly transformed according to segment and frequency interval and if the comparison conditions are satisfied the command is executed; if not, an indication is provided to the user to repeat the command.
REFERENCES:
patent: 3553372 (1971-01-01), Wright
patent: 3812291 (1974-05-01), Brodes et al.
patent: 3940565 (1976-02-01), Lindenberg
patent: 4405639 (1985-01-01), Mosier et al.
patent: 4412098 (1983-10-01), An
Kavan Franz
Searcy Gus
Bak-Boychuk I. Michael
Kemeny Emanuel S.
LandOfFree
Voice recognition system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Voice recognition system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voice recognition system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-623649