Pulse or digital communications – Repeaters – Testing
Patent
1996-03-14
1999-01-19
Vu, Huy D.
Pulse or digital communications
Repeaters
Testing
375208, 375367, 370335, 370441, H04B 169
Patent
active
058621725
ABSTRACT:
A spread spectrum communication system, which can detect the synchronization of the spread code surely even when the carrier-to-noise ratio is low, and can detect the boundary of the data. Wherein two types of spread code S20, S21 are transmitted from a transmitter 21 as an initial synchronizing signal based on a predetermined transmission pattern, and two types of spread code are respectively detected at a receiver 22. The predetermined transmission pattern is detected based on the detected two spread codes. Therefore, the spread code is detected several times at the receiver, and the synchronization of the spread code can be detected surely even when the carrier-to-noise ratio is low. Further, the boundary of the data can be detected by the predetermined transmission pattern.
REFERENCES:
patent: 5003552 (1991-03-01), Mower
patent: 5301206 (1994-04-01), Ishigaki
patent: 5375141 (1994-12-01), Takahashi
patent: 5495509 (1996-02-01), Lundquist et al.
patent: 5572514 (1996-11-01), Miyake
patent: 5583884 (1996-12-01), Maruyama et al.
patent: 5619527 (1997-04-01), Kuroyanagi et al.
Nakata Junichi
Sugita Takehiro
Maioli Jay H.
Sony Corporation
Tran Congvan
Vu Huy D.
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