Hand-held personal planetarium
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United States of America Patent
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Apr 1, 2014
Grant Date -
May 20, 2010
app pub date -
Feb 6, 2009
filing date -
Nov 18, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
Method and apparatus are provided for a hand-held planetarium which displays a sky pattern comprising graphical representations of one or more celestial objects. A sensing system comprising one or more sensors provides information about an orientation of the device. A controller receives the information about the orientation of the device from the sensing system and determines therefrom an altitude angle of a pointing axis and an azimuthal angle of the pointing axis. The controller accesses a database of celestial objects and determines, from within the database, one or more selected celestial objects for display based at least in part on a measure of proximity of the celestial objects to the pointing axis. Graphical representations of the one or more selected celestial objects are displayed on a display screen. The planetarium may switch between a normal orientation mode and a downward facing orientation mode.
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Family
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Cited Art Landscape
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