Sensor with signature of data relating to sensor
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United States of America Patent
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Apr 21, 2009
Grant Date -
Aug 19, 2004
app pub date -
Feb 10, 2004
filing date -
Sep 28, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A sensor has codes useful for a monitor which can be authenticated as accurate. The sensor produces a signal corresponding to a measured physiological characteristic and provides codes which can be assured of being accurate and authentic when used by a monitor. A memory associated with the sensor stores both data relating to the sensor and a digital signature. The digital signature authenticates the quality of the code by ensuring it was generated by an entity having predetermined quality controls, and ensures the code is accurate.
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