Methods and apparatus for an improved control parameter value indicator
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United States of America Patent
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Sep 12, 2000
Grant Date -
N/A
app pub date -
Sep 9, 1998
filing date -
Sep 9, 1998
priority date (Note) -
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Abstract
Accurate, unambiguous, and space-efficient electronic display techniques are provided for presenting the operator with an indicator whose graphical configuration varies in accordance with whether the relevant control value is within a predetermined tolerance range of a set-point value. More particularly, a control value indicator includes a scale having an axis associated with the control value, a set-point marker placed at a first position along the scale for indicating the set-point value, and a pointer having a second position along the scale for indicating the control value. The pointer and/or the set-point marker exhibit a first graphical configuration corresponding to the case where the control value is not within the predetermined tolerance of the set-point value, and a second graphical configuration corresponding to the case where the control value is within the predetermined tolerance of the set-point value.
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