Reception device

Details Reception device Reception device

2011-07-19

2011-07-19

Tarcza, Thomas H (Department: 3662)

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

Directive

Beacon or receiver

C342S445000, C342S451000, C342S464000, C455S272000

Reexamination Certificate

active

07982672

ABSTRACT:
A reception device includes a receiver, a direction detector, a location information acquisition component and a location calculator. The receiver receives broadcast signals sent from transmission towers, respectively. The direction detector detects reception directions of the broadcast signals. The location information acquisition component acquires location information indicating locations where the transmission towers are installed, respectively. The location calculator selects at least three of the transmission towers, estimate at least two estimated areas in which the reception device is located with each of the at least two of the estimated areas being estimated based on the reception directions of the broadcast signals of two of the at least three of the transmission towers and the location information of the two of the at least three of the transmission towers, and calculate a location of the reception device based on the at least two of the estimated areas.

REFERENCES:
patent: 4939522 (1990-07-01), Newstead et al.
patent: 5689270 (1997-11-01), Kelley et al.
patent: 6492945 (2002-12-01), Counselman et al.
patent: 2003/0030568 (2003-02-01), Lastinger et al.
patent: 2005/0035906 (2005-02-01), Krause et al.
patent: 2005/0264700 (2005-12-01), Matsuo
patent: 2005-323247 (2005-11-01), None

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