Circuits or arrangements for control or supervision between transmitter and receiver

Introduced: September 1968

Full Title

Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof > Circuits or arrangements for control or supervision between transmitter and receiver

CPC subdivides this area 3x more granularly than IPC with 8 additional codes.

8 codes are CPC-only extensions.

Child Classifications

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H04N 1/32005 +5 CPC CPC only CPC only
H04N 1/32037 +10 CPC CPC only CPC only
H04N 1/32101 +3 CPC CPC only CPC only
H04N 1/32358 +7 CPC CPC only CPC only
H04N 1/32496 CPC only CPC only
H04N 1/32502 +3 CPC CPC only CPC only
H04N 1/32561 +4 CPC CPC only CPC only
H04N 1/32609 +3 CPC CPC only CPC only
H04N 1/327 Initiating, continuing or ending a single-mode communication; Handshaking therefor since 1995 +8 CPC IPC+CPC Available in IPC and CPC
H04N 1/333 Mode signalling or mode changing; Handshaking therefor since 1995 +9 CPC IPC+CPC Available in IPC and CPC
H04N 1/34 for coin-freed systems +4 CPC IPC+CPC Available in IPC and CPC
H04N 1/36 for synchronising or phasing transmitter and receiver IPC+CPC Available in IPC and CPC