Location system with swept digital beacon

Details Location system with swept digital beacon Location system with swept digital beacon

2007-08-14

2007-08-14

Phan, Dao (Department: 3662)

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

Directive

Beacon or receiver

C342S457000

Reexamination Certificate

active

11201506

ABSTRACT:
A detection system includes a fixed-position transmitter and a mobile unit. The transmitter digitally transmits a data packet including angle information associated with the transmitter, and the mobile unit includes a receiver for receiving the transmitted data packet. The mobile unit is configured to detect a plurality of data packets from a single transmitter, the plurality of data packets including non-identical angle information. The mobile also determines new angle information from the non-identical angle information in the plurality of data packets and determines a location of the mobile unit relative to the transmitter using the new angle information. Also, the mobile unit is configured to indicate information associated with the determined location to a user.

REFERENCES:
patent: 3735407 (1973-05-01), Meyer
patent: 5469193 (1995-11-01), Giobbi et al.
patent: 5706510 (1998-01-01), Burgoon
patent: 5844522 (1998-12-01), Sheffer et al.
patent: 5903373 (1999-05-01), Welch et al.
patent: 6026402 (2000-02-01), Vossen et al.
patent: 6098072 (2000-08-01), Sluiman et al.
patent: 2002/0095479 (2002-07-01), Schmidt
patent: 2003/0187822 (2003-10-01), Lefurgy et al.
patent: 2005/0105600 (2005-05-01), Culum et al.

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