Directory assistance systems

Details Directory assistance systems Directory assistance systems

1989-09-18

1990-12-18

Levy, Stuart S.

Telephonic communications

Audio message storage, retrieval, or synthesis

379213, 379 88, 379 84, 379 74, H04M 354, H04M 164, H04M 360

Patent

active

049792067

ABSTRACT:
An arrangement for obtaining directory assistance automatically and without the assistance of an operator. A customer requesting directory assistance is connected to an automatic speech recognition unit (ASRU) and is prompted to speak commands for identifying the requested directory number. The ASRU converts received speech signals from the customer into data signals for searching a directory number data base. If a directory listing is located, the number of that listing is announced to the customer and the customer is automatically prompted to speak a command indicating whether a call to that number should be automatically established. The telecommunications switching network responds to a positive command by automatically establishing such a connection. Advantageously, such an arrangement provides directory assistance service automatically without requiring special customer equipment.

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patent: 4341929 (1982-07-01), Alexander et al.
patent: 4475013 (1984-10-01), Lee et al.
patent: 4488005 (1984-12-01), Frantz
patent: 4608460 (1986-08-01), Carter et al.
B. Aldefeld et al., "Automated Directory Listing Retrieval System Based on Isolated Word Recognition", Proceedings of the IEEE, v. 68, No. 11, Nov. 1980, pp. 1364-1379.
Smits, C. M., "Telephone Management Functions", Philips Telecommunication Review, vol. 43, No. 2, Jun. 1985, pp. 172-181.
Picture, Chicago Tribune, Jun. 13, 1987.
S. D. Hester et al., "The AT&T Multi-Mode Voice Systems-Full Spectrum Solutions for Speech Processing Applications", Proceedings of the 1985 AVIOS Conference.
J. P. Maury, "The Electronic Directory Service", Commutation & Transmission 5, No. 5, Dec. 1982, pp. 31-42.
Answer Attack Phone, by DAK Industries Incorporated, Stereo Review, Jul. 1986, p. 139.

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