DIFF Subgroup
H04J 13/18 Allocation of orthogonal codes
Introduced: January 2011
Full Title
Full titles differ between systems:
IPC:
Code division multiplex systems > Code allocation > Allocation of orthogonal codes
CPC:
Code division multiplex systems (for frequency hopping H04B1/713) > Code allocation > Allocation of orthogonal codes
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 2011.
Child Classifications
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- H04J 13/20 having an orthogonal variable spreading factor [OVSF] since 2011 IPC+CPC Available in IPC and CPC