Temperature compensation for trans-hybrid loss in a miniaturized data access arrangement
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United States of America Patent
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Apr 9, 1996
Issued Date -
N/A
app pub date -
Feb 27, 1995
filing date -
Feb 17, 1993
priority date (Note) -
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Abstract
Method and apparatus for temperature compensation of transhybrid loss in a data access arrangement (DAA) is provided. A thermal compensation device is situated in proximity to a thermally sensitive device. If devices which dissipate substantial power cause heating of the thermally sensitive device and change its characteristics, the thermal compensation device is also heated and compensates for the changes. Thus, a DAA that is unaffected by temperature changes and self-heating is provided. The DAA is suitable for use with data communications equipment utilizing echo cancelling circuitry, such as CCITT V.32 and V.32 bis modems. When used with such modems, the present invention avoids the need to perform retraining and equalization during changes in DAA operating temperature.
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