Modem line probing signal techniques
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United States of America Patent
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May 7, 1996
Grant Date -
N/A
app pub date -
Mar 15, 1994
filing date -
Mar 15, 1994
priority date (Note) -
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Abstract
Techniques for generating a line probing signal. The probing signal is comprised of a plurality of different tones, where the tones have a predetermined phase relationship. The signal may be sent over a communication channel, such as a telephone line. By so using the line probing signal, the non-linearity of the electrical characteristics of the telephone line may be measured with increased accuracy.
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