Communications: directive radio wave systems and devices (e.g. – Testing or calibrating of radar system – By monitoring
Reexamination Certificate
2006-10-19
2008-09-30
Gregory, Bernarr E (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Testing or calibrating of radar system
By monitoring
C342S118000, C342S120000, C342S165000, C342S173000, C342S175000, C342S195000, C342S357490, C342S357490, C702S085000, C702S098000, C702S127000, C702S138000, C073S384000, C073S865200, C701S001000, C701S003000, C701S004000, C701S010000
Reexamination Certificate
active
07429948
ABSTRACT:
In a combined GPS/altimeter device, the calibration and hence the accuracy of barometric altimeter measurements are enhanced with the aid of derived altitudes from a GPS. The device determines the need for calibration and perform the subsequent computations necessary to facilitate the calibration. Furthermore, the device determines a correction quantity that should be applied to barometric altitude readings, thereby allowing the device to be calibrated while in motion. Both of these features ultimately result in a more accurate determination of altitude.
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“Measuring RMS Values of Voltage and Current”; no author listed; no date given; Dataforth Corp.; Tucson, Arizona, USA; on the Internet at dataforth.com.
Burgett Scott
Oliver Tracy
Garmin Ltd.
Gregory Bernarr E
Korte Samuel M.
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