Disaster warning communications system
First Claim
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1. An early warning personal communication system comprising:
- an uplink means which communicates with a satellite;
a satellite;
a plurality of downlink means which are capable of receiving communications from said satellite; and
a plurality of receivers, wherein said receivers comprise a portable unit with a visual display subsystem.
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Abstract
The Disaster Warning Communications System is a message relay system designed to provide backup warning of impending natural hazard in areas where normal communications are vulnerable to losses imposed by geographic influence. It has been designed to take advantage of the near-hemispheric communications access of existing geostationary weather satellites. This broad coverage allows a single satellite to provide warning to virtually all the inhabited islands in the hemisphere surrounding the subpoint of the satellite, excluding only the extreme polar areas. By extension, three such satellites can cover the entire populated Earth.
486 Citations
21 Claims
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1. An early warning personal communication system comprising:
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an uplink means which communicates with a satellite; a satellite; a plurality of downlink means which are capable of receiving communications from said satellite; and a plurality of receivers, wherein said receivers comprise a portable unit with a visual display subsystem. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An early warning personal communication system comprising:
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an uplink means which communicates with a satellite; a geo-stationary satellite; downlink means comprised of at least one first downlink means and a plurality of second downlink means each of which is capable of receiving communications from said satellite; and a plurality of personal receivers, wherein said receivers comprise a portable unit with a visual display subsystem which conveys specific information to its user comprising the type of disaster, and its position relative to the user through the use of icons and LEDs. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An early warning personal communication system comprising:
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an uplink means which communicates with a satellite in order to forward a message of disaster warning to be disseminated to the public, said satellite being operated by a satellite control facility; a geo-stationary, government owned/operated satellite; downlink means comprised of at least one first downlink means, said first downlink means being referred to as a direct downlink receiver and being located at or in direct communication with local emergency management authorities, and a plurality of second downlink means referred to as a repeater terminal each of which capable of receiving communications from said satellite wherein said second downlink means is comprised of a downlink converter, a decoder, and exciter and a transmitter; and a plurality of personal receivers comprising a light-weight, portable unit with a visual display subsystem designed to convey information of at least the type of disaster, and its position relative to the user. - View Dependent Claims (21)
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Specification