Elevator call entry system

Details Elevator call entry system Elevator call entry system

1983-03-08

1985-12-10

Caldwell, Sr., John W.

Communications: electrical

Selective

Interrogation response

187 29R, 340 20, B66B 1300

Patent

active

045582980

ABSTRACT:
An elevator call entry system comprises microphones mounted on the floors or in the car, oral message recognizing units producing an oral message signal indicative of a voice calling for a call entry with statement of the floor of destination, or of a voice calling for its cancellation, when said voices are supplied to said microphones, voiceprint recognizing units operable to recognize voiceprints of the voice supplied to said microphone and to produce an output signal when the voiceprint of the voice calling for a call entry is coincident with that of the voice calling for its cancellation, and call effecting units responsive to the output of the oral message recognizing units to issue a command to enter a call to the floor of destination and operable upon reception of an output signal from the voiceprint recognizing units to issue a command to cancel the call entry.

REFERENCES:
patent: 3909533 (1975-09-01), Willimann
patent: 4403114 (1983-09-01), Sakoe
patent: 4431086 (1984-02-01), Moser et al.
patent: 4460066 (1984-07-01), Ohta
"Voice Recognition" by Yasuhisa Niimi, Kyoritsu Publishing Co., Oct. 10, 1979, pp. 221-223, B. System for Collating Speaker Through Telephone, also pp. 53-57, 64-66, 212-215, and 234-235.
"Automatic Recognition of Speakers from Their Voices" by Bishnu S. Atal, Proceedings of the IEEE, vol. 64, No. 4, Apr. 1976, pp. 460-475.
"Digital Representations of Speech Signals" by Ronald Schafer et al., Proceedings of the IEEE, vol. 63, No. 4, Apr. 1975, pp. 662-677.

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