System for transmitting positioning signal

Details System for transmitting positioning signal System for transmitting positioning signal

2006-07-03

2008-08-12

Phan, Dao L (Department: 3662)

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

Directive

Position indicating

C342S357490, C342S463000

Reexamination Certificate

active

07411550

ABSTRACT:
A system for transmitting time-synchronized signals for positioning is provided. The system for transmitting positioning signals includes a transmitting apparatus mounted on artificial satellite, a repeater mounted on an artificial satellite, and a repeater mounted on an artificial satellite. Positional relation among artificial satellites is specified beforehand. Transmitting apparatus transmits a signal generated by encoding using a code identifying itself. Repeater receives a signal from the transmitting apparatus and transmits the signal. Repeater receives a signal from the transmitting apparatus and transmits the signal. The signals transmitted from the transmitting apparatus and repeaters and are received by receiving apparatuses and having the function of receiving the signals.

REFERENCES:
patent: 2003/0232595 (2003-12-01), Baker et al.
patent: 2004/0257276 (2004-12-01), Huston et al.
patent: 0844492 (1998-05-01), None
patent: WO-2004/081600 (2004-09-01), None
EPO Communication regarding EP Application No. 06013648.8—1248, dated Oct. 18, 2006, with Extended European Search Report (EESR) (6 pages).
Nagle, J. R., et al.: “Geostationary Repeaters: A Low Cost Way to Enhance Civil User Performance of GPS and Glonass”; The 1990's—A Decade of Excellence In The Navigation Sciences; Las Vegas, Mar. 20-23, 1990; Proceedings Of The Position Location And Navigation Symposium (PLANS), IEEE, New York, U.S.; pp. 9-16 (9 pages).

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