Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2004-08-03
2008-12-02
Payne, David C. (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S148000, C375S295000, C375S299000, C455S500000
Reexamination Certificate
active
07460581
ABSTRACT:
Encoded digital symbols are transmitted via a first pair of antennas and at least one second pair of antennas. The sets of symbols used for the transmission via the second pair of antennas are re-ordered temporally into subsets of symbols with respect to the symbols used for the first pair of antennas. For the first pair of antennas, there is used a signal subjected to encoding with a code-division-multiple-access code and subjected to spreading with a spreading code, and, likewise, for the second pair or pairs of antennas there are used signals subjected to encoding with respective code-division-multiple-access code and subjected to spreading with a respective spreading code. At least one between the respective code-division-multiple-access code and the respective spreading code used for the transmission via the second pair of antennas is different from the code-division-multiple-access code and from the spreading code used for the transmission via the first pair of antennas. The solution can be extended to the use of a plurality of second pairs of antennas in transmission and/or to the use of a plurality of antennas in reception.
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Avellone Giuseppe
Galluzzo Agostino
Piazzese Nicolò Ivan
Rimi Francesco
Serratore Alberto
de Guzman Dennis M.
Flores Leon
Jorgenson Lisa K.
Payne David C.
Seed IP Law Group PLLC
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