Tone recognition method using tone learning operation in an automatic answering system
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United States of America Patent
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Jun 24, 1997
Grant Date -
N/A
app pub date -
Feb 1, 1996
filing date -
Jul 6, 1995
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention provides an automatic answering system that, upon being provided with operating power, uses a tone pattern learning operation to identify an applicable busy tone pattern. After the applicable busy tone pattern is identified, when a calling party records a message on a recording medium of the system, the system performs a detection mode subroutine corresponding to the identified busy tone pattern and detects the busy tone in a rapid and accurate manner. As a result, unnecessary use of the recording medium is eliminated.
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