Two-way distress alert and emergency location apparatus and...

Details Two-way distress alert and emergency location apparatus and... Two-way distress alert and emergency location apparatus and...

2007-05-08

2007-05-08

Tarcza, Thomas H. (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

C340S539130, C455S404200

Reexamination Certificate

active

10934029

ABSTRACT:
A portable emergency communication device includes a first receiver for receiving location determination signals from the global positioning satellite (GPS) system, and a second receiver for receiving incoming signals from a subscriber-based satellite radio system, such as the Sirius or XM satellite radio service providers. The device includes a transmitter for transmitting outgoing signals to a search and rescue satellite system, such as the Cospas-Sarsat satellite system. The incoming signals are encoded with preprogrammed queries and prompts that are displayed on a display device on the emergency communication device. The outgoing signals are encoded with location coordinates of the device and preprogrammed messages that respond to queries encoded in the incoming signals. The emergency communication device operates in a communication system wherein the search and rescue satellite system is linked by a communication network to a private search and rescue coordination center, which is linked by a communication network to the satellite radio service provider. In this manner, the invention provides a closed-loop communication system enabling two-way communication between the emergency communication device and the search and rescue coordination center.

REFERENCES:
patent: 5519403 (1996-05-01), Bickley et al.
patent: 5724045 (1998-03-01), Kawakami
patent: 6275164 (2001-08-01), MacConnell et al.
patent: 2006/0095199 (2006-05-01), Lagassey

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