Pulse or digital communications – Spread spectrum – Direct sequence
Patent
1985-02-12
1987-05-19
Safourek, Benedict V.
Pulse or digital communications
Spread spectrum
Direct sequence
375114, 371 42, H04L 700
Patent
active
046673342
ABSTRACT:
A radio system broadcasts binary data packets that can be received in mob receivers. The initial parts of the packets are transmitted periodically. The prefix of each packet includes synchronizing information. The synchronization processing includes seeking a phase and a tracking phase. The transition from the seeking to the tracking phases occurs when the synchronization pattern has been received two consecutive times with a null Hamming distance.
REFERENCES:
patent: 3766315 (1973-10-01), Couvillon, Jr. et al.
patent: 4554540 (1985-11-01), Mori et al.
Collec Jean P.
Rigal Michel R.
Etablissement Public de Diffusion dit "Telediffusion de France"
Huseman M.
Safourek Benedict V.
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