Taking-off and landing target instrument and automatic taking-off and landing system
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United States of America Patent
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Apr 28, 2015
Grant Date -
Nov 1, 2012
app pub date -
Apr 23, 2012
filing date -
Apr 28, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
The taking-off and landing target instrument 2 to be used in an automatic taking-off and landing system, comprising a target 37 having as many light emitting elements 44 as required for displaying patterns and a target control unit 38 for controlling light emission of the light emitting elements, wherein the light emitting elements are provided on a taking-off and landing surface of the target and are arranged so that a target mark 43 having the center of pattern under all turned-on status is formed, and wherein the target control unit controls a light emission so as to display firstly all turned-on patterns where all of the light emitting elements are turned on, and next, so as to display the light emitting elements in a predetermined pattern.
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