Patent classifications
H
ELECTRICITY
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H04
ELECTRIC COMMUNICATION TECHNIQUE
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H04J
MULTIPLEX COMMUNICATION
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11/00
Orthogonal multiplex systems,; e.g. using WALSH codes
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H04J2011/0003
Combination with other multiplexing techniques
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H04J2011/0016
with FDM/FDMA and TDM/TDMA
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