Method and apparatus for estimating remaining life of a product
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United States of America Patent
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Aug 10, 2004
Grant Date -
Apr 24, 2003
app pub date -
Oct 19, 2001
filing date -
Oct 19, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus are described which periodically sense environmental conditions, such as temperature, humidity, or voltage applied to a product, and apply these sensed measurements to models of ageing acceleration. Acceleration factors from the models are accumulated in nonvolatile storage. The accumulated effective aging of the product is displayed to the owner or prospective customer in various desired formats, such as effective age, current acceleration factor, estimate of effective life used, or estimate of remaining life left in the product. A warning can be sent to the user to indicate that the product's effective life is over or is nearly over.
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