Communication apparatus for detecting a calling signal from a line, for detecting a data communication signal from a calling station, and for generating a quasi-calling tone
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United States of America
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Jul 18, 2000
Grant Date -
N/A
app pub date -
Nov 21, 1997
filing date -
Aug 30, 1989
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A communication apparatus includes a first detector for detecting a calling signal from a line, a tone generator for generating quasi-calling tone and sending it out to the line, a second detector for detecting a signal indicating the data communication from a calling station, and a control unit for starting the data communication in response to the detection by the second detector. The second detector detects the signal while the tone generator sends out the quasi-calling tone when the calling signal is received.
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