Details of colour television systems

Child Classifications

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• H04N 9/01 Circuitry for demodulating colour component signals modulated spatially by colour striped filters by phase separation since 2023 IPC+CPC Available in IPC and CPC
• H04N 9/03 Circuitry for demodulating colour component signals modulated spatially by colour striped filters by frequency separation since 2023 IPC+CPC Available in IPC and CPC
• H04N 9/11 Scanning of colour motion picture films, e.g. for telecine since 1974 IPC+CPC Available in IPC and CPC
• H04N 9/12 Picture reproducers (H04N9/11 takes precedence) IPC+CPC Available in IPC and CPC
• H04N 9/43 Conversion of monochrome picture signals to colour picture signals for colour picture display since 1985 IPC+CPC Available in IPC and CPC
• H04N 9/44 Colour synchronisation IPC+CPC Available in IPC and CPC
• H04N 9/64 Circuits for processing colour signals (H04N9/77 takes precedence; camera processing pipelines for processing colour signals H04N23/84) since 1985 +7 CPC IPC+CPC Available in IPC and CPC
• H04N 9/77 Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase (circuits for matrixing H04N9/67) since 1985 IPC+CPC Available in IPC and CPC
• H04N 9/79 Processing of colour television signals in connection with recording since 1985 +3 CPC IPC+CPC Available in IPC and CPC