IPC Subgroup
H04B 3/36 Repeater circuits
Introduced: September 1968
Last revised: January 2006
Full Title
Line transmission systems > Details > Repeater circuits
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- TRANSMISSION
1 direct subcode
Child Classifications
Navigate with arrow keys, Enter to open
- H04B 3/38 for signals in two different frequency ranges transmitted in opposite directions over the same transmission path