Method and apparatus for processing an input speech signal during presentation of an output audio signal
October 5, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesData access system wherein subscriber terminals gain access to a data bank by telephone lines Endpoint detector Automatic speech recognition using echo cancellation Variable rate encoding and communicating apparatus Voice messaging system with voice activated prompt interrupt Method for recognizing a spoken word in the presence of interfering speech Integrated audio decoder system and method of operation Network based knowledgeable assistant Transcoding and transdecoding unit, and method for adjusting the output thereof Speech recognition method and system with improved voice-activated prompt interrupt capability InventorAssigneeApplicationNo. 09412202 filed on 10/05/1999US Classes:704/201, For storage or transmission704/270, Application704/270.1, Speech assisted network704/275, Speech controlled system704/248, Endpoint detection704/263, Correlation379/93.25, Having remote database (e.g., videotex system)704/253, Endpoint detection375/240, BANDWIDTH REDUCTION OR EXPANSION341/110, ANALOG TO DIGITAL CONVERSION FOLLOWED BY DIGITAL TO ANALOG CONVERSION330/144, VARIABLE IMPEDANCE FOR SIGNAL CHANNEL CONTROLLED BY SEPARATE CONTROL PATH379/406.03, Additional signal enhancement (e.g., voice processing or recognition)704/231, Recognition380/274, Synchronization379/1.01, DIAGNOSTIC TESTING, MALFUNCTION INDICATION, OR ELECTRICAL CONDITION MEASUREMENT370/360, Switching control379/88.01Voice activation or recognitionExaminersPrimary: Chawan, VijayAttorney, Agent or FirmInternational ClassG10L019/00AbstractA start of an input speech signal is detected during presentation of an output audio signal and an input start time, relative to the output audio signal, is determined. The input start time is then provided for use in responding to the input speech signal. In another embodiment, the output audio signal has a corresponding identification. When the input speech signal is detected during presentation of the output audio signal, the identification of the output audio signal is provided for use in responding to the input speech signal. Information signals comprising data and/or control signals are provided in response to at least the contextual information provided, i.e., the input start time and/or the identification of the output audio signal. In this manner, the present invention accurately establishes a context of an input speech signal relative to an output audio signal regardless of the delay characteristics of the underlying communication system.Other References
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