Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2011-08-30
2011-08-30
Tse, Young T. (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C370S209000
Reexamination Certificate
active
08009721
ABSTRACT:
A wireless communication apparatus capable of minimizing the degradation in separation characteristic of a code multiplexed response signal. In this apparatus, a control part (209) controls both a ZC sequence to be used in a primary spreading in a spreading part (214) and a Walsh sequence to be used in a secondary spreading in a spreading part (217) so as to allow a very small circular shift interval of the ZC sequence to absorb the interference components remaining in the response signal; the spreading part (214) uses the ZC sequence set by the control part (209) to primary spread the response signal; and the spreading part (217) uses the Walsh sequence set by the control part (209) to secondary spread the response signal to which CP has been added.
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Hoshino Masayuki
Imamura Daichi
Nakao Seigo
Nishio Akihiko
Panasonic Corporation
Seed IP Law Group PLLC
Tse Young T.
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