Telecommunications device equipped with in-call incoming call notification function and method for detecting in-call incoming signal notification
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United States of America Patent
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Jul 9, 2002
Grant Date -
N/A
app pub date -
Aug 21, 1998
filing date -
Aug 21, 1997
priority date (Note) -
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Abstract
The present invention has the purpose of realizing an infallible in-call incoming signal notification incoming signal notification service with this erroneous action eliminated to the extent possible. The telecommunications device equipped with an in-call incoming signal notification function relating to the present invention is equipped with the following: a microphone to transmit voice signals to a line; an earphone to receive voice signals from the line and convert them to voice; an in-call incoming signal notification signal sampler to sample this signal when an in-call incoming signal notification signal is included in the line; a response signal emitter to send a response signal for the in-call incoming signal notification signal to the line; a microphone signal detector to detect whether the transmitter has sent voice signals to the line; an earphone signal detector to detect whether the earphone has received voice signals from the line; and a control portion to analyze the sampled signal from the in-call incoming signal notification signal sampler based on the detected signals of the microphone signal detector and the earphone signal detector and determine the presence of the in-call incoming signal notification signal, as well as causing the response signal emitter to send a response signal when it is determined that an in-call incoming signal notification signal is present and to acquire information from the line.
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