IPC Subgroup
H04J 1/04 Frequency-transposition arrangements
Introduced: September 1968
Last revised: January 2006
Full Title
Frequency-division multiplex systems > Details > Frequency-transposition arrangements
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- MULTIPLEX COMMUNICATION
1 direct subcode
Child Classifications
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- H04J 1/05 using digital techniques