Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2011-06-07
2011-06-07
Liu, Shuwang (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S130000, C375S213000, C375S346000, C375S216000
Reexamination Certificate
active
07957454
ABSTRACT:
There is provided a transmitter that transmits data in a spread spectrum communications system including a spread modulation portion spreading transmitting data with a spread code, an RZ conversion portion converting the transmitting data spread to an RZ signal, and an impulse sequence conversion portion multiplying the RZ signal by an impulse sequence to convert the RZ signal to an impulse radio signal.
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Japanese Office Action issued on Jan. 5, 2010 in corresponding Japanese Patent Application 2004-297717.
Kurashima Shigemi
Uchiyama Takuya
Fujitsu Component Limited
Liu Shuwang
Patel Dhaval
Staas & Halsey , LLP
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