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Generated January 22, 2018

Processing dual tone multi-frequency signals for use with a natural language understanding system

Patent Number: 6,845,356

Patent Information

Abstract
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.
Patent Number: 6,845,356
Issue Date: 2005-01-18

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Citations

Patents cited by this patent

Patent Title
6,601,029 Voice processing apparatus
6,526,382 Language-oriented user interfaces for voice activated services
6,510,414 Speech recognition assisted data entry system and method
6,496,799 End-of-utterance determination for voice processing
6,311,159 Speech controlled computer user interface
6,278,770 Voice information service system and an operation method applied therein
6,269,336 Voice browser for interactive services and methods thereof
6,137,878 Method for outputting user feedback audio messages and telecommunications equipment employing said method
5,832,063 Methods and apparatus for performing speaker independent recognition of commands in parallel with speaker dependent recognition of names, words or phrases
5,732,395 Methods for controlling the generation of speech from text representing names and addresses

Patents that cite this patent

Patent Title
8,675,638 Method and apparatus for enabling dual tone multi-frequency signal processing in the core voice over internet protocol network
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8,213,579 Method for interjecting comments to improve information presentation in spoken user interfaces
7,974,835 Method, system, and apparatus for natural language mixed-initiative dialogue processing
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7,903,792 Method and system for interjecting comments to improve information presentation in spoken user interfaces
7,809,569 Turn-taking confidence
7,573,986 Method and system for interjecting comments to improve information presentation in spoken user interfaces
7,177,806 Sound signal recognition system and sound signal recognition method, and dialog control system and dialog control method using sound signal recognition system

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