IPC Definitions - January 01, 2012
H04L 27/00 - Definition
This main group covers:
Passband aspects of data transmission, e.g. modulating and demodulating of signals, arrangements for provision and recovery of carriers.
Attention is drawn to the following places, which may be of interest for search:
Modulator circuits in general | H03C |
Demodulator circuits in general | H03D |
OFDM | Orthogonal Frequency Division Multiplex |
PSK | Phase Shift Keying |
QAM | Quadrature Amplitude Modulation |
ASK | Amplitude Shift Keying |
OOK | On-Off Keying |
FSK | Frequency Shift Keying |
CPM | Continuous Phase Modulation |