Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission

Child Classifications

Navigate with arrow keys, Enter to open

• H04B 1/0003 +2 CPC CPC only CPC only
• H04B 1/005 +4 CPC CPC only CPC only
• H04B 1/02 Transmitters IPC+CPC Available in IPC and CPC
• H04B 1/06 Receivers IPC+CPC Available in IPC and CPC
• H04B 1/38 Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving +1 CPC IPC+CPC Available in IPC and CPC
• H04B 1/59 Responders; Transponders IPC+CPC Available in IPC and CPC
• H04B 1/60 Supervising unattended repeaters IPC+CPC Available in IPC and CPC
• H04B 1/62 for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio IPC+CPC Available in IPC and CPC
• H04B 1/66 for reducing bandwidth of signals; for improving efficiency of transmission (H04B1/68 takes precedence) +3 CPC IPC+CPC Available in IPC and CPC
• H04B 1/68 for wholly or partially suppressing the carrier or one side band IPC+CPC Available in IPC and CPC
• H04B 1/69 Spread spectrum techniques since 1995 +4 CPC IPC+CPC Available in IPC and CPC
• H04B 1/72 Circuits or components for simulating antennas, e.g. dummy antennas IPC+CPC Available in IPC and CPC
• H04B 1/74 for increasing reliability, e.g. using redundant or spare channels or apparatus since 1980 +1 CPC IPC+CPC Available in IPC and CPC
• H04B 1/76 Pilot transmitters or receivers for control of transmission or for equalising since 1980 IPC+CPC Available in IPC and CPC