Device, method and system for estimating the termination to a wired transmission-line based on determination of characteristic impedance
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United States of America Patent
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Apr 21, 2009
Grant Date -
Aug 10, 2006
app pub date -
Mar 29, 2005
filing date -
Jan 23, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system and method for measuring a characteristic impedance of a transmission-line comprises transmitting energy to the line, and shortly after measuring the voltage/current involved and thus measuring the equivalent impedance. The measured characteristic impedance may then be used in order to determine the termination value required to minimize reflections. In another embodiment, the proper termination is set or measured by adjusting the termination value to achieve maximum power dissipation in the terminating device. The equivalent characteristic impedance measurement may be used to count the number of metallic conductors connected to a single connection point. This abstract is not intended to limit or construe the scope of the claims.
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