Weather forecast data distributing system and method
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United States of America Patent
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Nov 19, 2013
Grant Date -
Nov 3, 2005
app pub date -
Apr 29, 2005
filing date -
Apr 30, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
Broadcast signal c is transmitted from a broadcast transmitter 5 to an artificial satellite 1 for predetermined signal conversion, whereby broadcast signals al to an are transmitted to all of Japan. On-earth stations 6-1 to 6-n are installed for weather forecast data. These on-earth stations receive the broadcast signals al to an, respectively, transmitted from the artificial satellite 1, and transmit receiving state data b1 to bn, respectively, based on receiving level data to the artificial satellite 1. The receiving state signals are changed with variations of their radio wave attenuation according to whether it is cloudy, rainy, snowy, the cloud density, etc. The receiving state data are collectively sent back to a weather forecast center 9. Weather forecast data e obtained by analysis in the weather forecast center 9 is transmitted to the artificial satellite 1, which in turn sends weather forecast data f back to all of Japan.
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