Device for exchanging radio signals provided with time...

Details Device for exchanging radio signals provided with time... Device for exchanging radio signals provided with time...

2005-03-22

2005-03-22

Nguyen, Chau (Department: 2663)

Multiplex communications

Communication over free space

Repeater

C370S507000, C370S509000

Reexamination Certificate

active

06870819

ABSTRACT:
Radio transmission of chronometric information. A device comprising an antenna (A1, A2) to which there are coupled on one hand a generator (G1, G2) generating a signal to be sent (e1, e2) and a reception processing circuit (C1, C2), capable of processing a received signal (r1, e2) where the signals exchanged have the same carrier frequency. Separate time segments are generated with successive random positions. Transmission is enabled only during these time segments, whilst reception is enabled only outside these segments, making it possible to use the time markers of the signals without any effect of recurrent masking of the reception signal by the transmission signal.

REFERENCES:
patent: 3798650 (1974-03-01), McComas et al.
patent: 5410588 (1995-04-01), Ito
patent: 5697051 (1997-12-01), Fawcett
patent: 5796726 (1998-08-01), Hassan et al.
patent: 6016311 (2000-01-01), Gilbert et al.
patent: 2 726 412 (1996-05-01), None
Kirchner, Dieter, “Two-Way Time Transfer Via Communication Satellites”, Proceedings of the IEEE, vol. 79, No. 7, Jul. 1991, pp. 983-989.

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