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US 8,138,911 B2Granted
Personal locator beacon
AssigneeBriarTek IP
InventorsCharles K. Collins, Joseph Landa
Life of this patent
Estimating the term…
Abstract
A tracking and locating system includes a user unit, a central unit, and a range finder. The user unit includes a beacon that transmits an information signal. The central unit receives the information signal from the beacon, interprets content of the information signal, and reports the content. The range finder receives the information signal from the beacon, interprets a header of the information signal to determine a range, and reports the range.
Claims37
A tracking and locating system, comprising:
- a user unit;
- a central unit;
- and
- a range finder;
- wherein the user unit includes a beacon that transmits an information signal, wherein the information signal includes only locally-derived information;
- wherein the central unit receives the information signal directly from the beacon, interprets content of the information signal, and reports the content;
- and
- wherein the range finder receives the information signal from the beacon, interprets a range field of the information signal to determine a range, and reports the range.
5 more elements
Dependencies are inferred from the claim text.