PROCESSING DUAL TONE MULTI-FREQUENCY SIGNALS FOR USE WITH A NATURAL LANGUAGE UNDERSTANDING SYSTEM
Patent №
US 6,845,356
Granted
2005-01-18
Filed 2001
Owner
INTERNATIONAL BUSINESS MACHINES CORPORATION
Lab
AI components
4
ml · nlp · speech · hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
09773172
A method for processing dual tone multi-frequency signals for use with a natural language understanding system can include several steps. The step of determining whether a audio input signal is a dual tone multi-frequency signal or a human speech signal can be included. If the audio input signal is determined to be a dual tone multi-frequency signal, the audio input signal can be converted to at least one text equivalent. Also, the step of providing the at least one text equivalent to a natural language understanding system can be included. The natural language understanding system can determine a meaning from the text equivalent.
AI classification
Ownership
INTERNATIONAL BUSINESS MACHINES CORPORATION
assignment · 115150001
Assignors
EPSTEIN, MARK E.
On an employer assignment, the assignors are typically the inventors.