Positioning signal transmission apparatus

Details Positioning signal transmission apparatus Positioning signal transmission apparatus

2006-04-04

2006-04-04

Phan, Dao (Department: 3662)

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

Directive

Beacon or receiver

C342S357490, C342S357490, C701S213000

Reexamination Certificate

active

07023382

ABSTRACT:
A reception high-frequency unit receives a GPS signal transmitted from a satellite configuring GPS. A signal generation unit generates a plurality of pseudo random noise codes that are used for the positioning operation by a positioning apparatus for implementing a positioning operation based on the GPS signal and that are in the same form as that of the GPS signal. A transmission high-frequency unit generates and transmits based on the pseudo random noise codes, a positioning signal in the same form as that of the GPS signal. A transmission control unit controls the transmission high-frequency unit in such a way that a time difference based on the GPS signal received by the reception high-frequency unit is assigned to each positioning signal and the thus-assigned positioning signal is transmitted.

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patent: 2005/0030229 (2005-02-01), Spilker, Jr.
patent: 7-280917 (1995-10-01), None
patent: 2000-111648 (2000-04-01), None
patent: 2003-57330 (2003-02-01), None

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