Pulse or digital communications – Repeaters – Testing
Patent
1996-08-28
1999-05-25
Chin, Stephen
Pulse or digital communications
Repeaters
Testing
H04B 1500
Patent
active
059075767
ABSTRACT:
A CSK modulation is applied to transmit input data for transmission by using N PN code series. A modulator for N series synthesizes a predetermined number (n) of PN code series selected from N PN code series in response to m bits in the input data, and the synthesized code series is transmitted onto a transmission medium through a transmitting interface. The PN code series which is actually transmitted has a maximum value of the absolute magnitude of auto-correlation which is always greater than a maximum value of the absolute value of cross-correlations between the remaining synthesized PN code series.
REFERENCES:
patent: 5048052 (1991-09-01), Hamatsu et al.
patent: 5105436 (1992-04-01), Mori et al.
patent: 5228055 (1993-07-01), Uchida et al.
patent: 5432815 (1995-07-01), Kang et al.
Chin Stephen
NEC Corporation
Roundtree Jr. Joseph
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