Method and system for identifying a corrupted speech message signal
Patent 5684921 Issued on November 4, 1997. Estimated Expiration Date: 
July 13, 2015. 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.
July 13, 2015. 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 ReferencesApparatus and method for providing interactive audio communication Perceptual coding of audio signals Automated quality assessment system for cellular networks Bit allocation method and device for digital audio signals using aural characteristics and signal intensities Patent #: 5553193 InventorsAssigneeApplicationNo. 501852 filed on 07/13/1995US Classes:704/226, Noise379/88.01, Voice activation or recognition704/201, For storage or transmission704/210, Silence decision704/214, Voiced or unvoiced704/227, Pretransmission704/228Post-transmissionExaminersPrimary: MacDonald, Allen R.Assistant: Collins, Alphonso A. Attorney, Agent or FirmInternational ClassG10L 009/18AbstractA method is disclosed for identifying corrupted speech signals in a call receiving mode of a voice messaging system. The method includes the step of receiving a message signal. The message signal represents an audio message. The method next includes the step of determining a signal quality. The signal quality is then compared to a threshold. If the signal quality is at least as great as the threshold, the audio data representing the message signal is stored in a memory. If the signal quality is not as great as the threshold, an indication signal is transmitted indicating that the signal quality is poor. A system is also disclosed for implementing the steps of the method.Other References
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