Directory assistance systems

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4979206
SERIAL NO

07409973

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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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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First Claim

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Patent Owner(s)

  • AT&T BELL LABORATORIES

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Padden, Frederick W Wheaton, IL 2 220
Ulrich, Werner Glen Ellyn, IL 6 669

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