Detecting states of signals
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United States of America Patent
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-
Oct 2, 2001
Issued Date -
N/A
app pub date -
Oct 20, 1999
filing date -
Dec 31, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A time delay from a triggering event to switching of an output signal in a microelectronic device can be adjusted to compensate for various characteristics of the electronic device. The characteristics include temperature, voltage, and manufacturing process conditions. The time delay is adjusted using a variable delay circuit having multiple delay cells that are selectively coupled to control the time delay. The conditions of the electronic device are detected using a process sensor, which includes an oscillator having a frequency that is sensitive to variations in the conditions.
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