Pulse or digital communications – Transmitters – Plural diversity
Reexamination Certificate
2006-03-29
2010-11-02
Fan, Chieh M (Department: 2611)
Pulse or digital communications
Transmitters
Plural diversity
C375S267000, C375S146000
Reexamination Certificate
active
07826558
ABSTRACT:
First normalizing means (12) normalizes first and second code streams (s1, s2). First spreading means (13) spreads the output of the first normalizing means (12). STTD coding means (14) subjects the first and second code streams (s1, s2) to STTD coding. Second normalizing means (15) normalizes the output of the STTD coding means (14). Second spreading means (16) spreads the output of the second normalizing means (15) by means of the same spreading code as that of the first normalizing means (12). Orthogonal transforming means (17) gives the negative signs to odd chips in a second path spread sequence of each code and exchanges the orders of the odd and even chips. Combining means (18) adds first and second spread sequences of the second path produced by orthogonally transforming the first and second spread sequences of the first path. With this, by using the orthogonality of the transmitted sequences at the receiving side, the reception signal can be detected with a lower complexity.
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Li Jifeng
Zhao Zheng
Dickinson Wright PLLC
Fan Chieh M
Fotakis Aristocratis
Panasonic Corporation
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