IPC Subgroup
H04J 7/02 in which the polarity of the amplitude is characteristic
Introduced: September 1968
Last revised: January 2006
Full Title
Multiplex systems in which the amplitudes or durations of the signals in individual channels are characteristic of those channels > in which the polarity of the amplitude is characteristic
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- MULTIPLEX COMMUNICATION