Pulse or digital communications – Repeaters – Testing
Patent
1994-07-13
1996-06-25
Chin, Stephen
Pulse or digital communications
Repeaters
Testing
H04B 1707
Patent
active
055307175
ABSTRACT:
For spectrum spreading with a small spreading factor N which may be four, an input bit sequence of an input bit rate fs is eventually converted into a serial data sequence of serial data of which each serial datum consists of N repetitions of N consecutive bits of the input bit sequence. By a shift register (19) operable at fs and a memory (23) operable at fs/4, the input bit sequence is first converted into N parallel bit sequences, which are converted into the serial data sequence by a selector (27) operable at Nfs.
REFERENCES:
patent: 4455651 (1984-06-01), Baran
patent: 5204877 (1993-04-01), Endo et al.
Chin Stephen
Kim Kevin
NEC Corporation
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