Transmitting-receiving station for a system for transmitting dat

Details Transmitting-receiving station for a system for transmitting dat Transmitting-receiving station for a system for transmitting dat

1984-09-20

1986-08-12

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

375 22, 375114, 455 32, 455 65, H04B 1402, H04B 1500

Patent

active

046060405

ABSTRACT:
A transmitting-receiving station for transmitting information by frequency hopping comprises a code generator to define the use of a plurality of channels in accordance with a high-speed skip law for a transmitting-receiving station in the stand-by mode, the high-speed skip law consisting in the use of each of the channels during a period of time Tp, while the low-speed skip law governs the change of listening channels used during N.times.Tp, each corresponding to a center channel out of a sequence of N channels of the high-speed skip law. The center channel contains a synchronizing code. The station comprises a memory device to which a write circuit for progressively storing therein the codes produced by the generator and also to which a read circuit is connected to take the codes from the memory as a function of the positions of the transmitting-receiving station.

REFERENCES:
patent: 4383323 (1983-05-01), Timor
patent: 4434504 (1984-02-01), Fredrickson
patent: 4538281 (1985-08-01), Rajan
patent: 4558453 (1985-12-01), Mimken

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