Method and apparatus for frequency control
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jun 27, 2000
Grant Date -
N/A
app pub date -
Aug 7, 1997
filing date -
Sep 13, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention concerns a method and apparatus for providing frequency control of an oscillator circuit. The apparatus includes an oscillator (9), an error estimator (10) f.sub.r producing a set of error estimates and a median filter (11) for producing a median value from the set of estimates. The median filter (11) is connected to the oscillator (9) which is responsive to the median value to vary its frequency thereby reducing the error.
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