Television systems

Classification Context

Section:

ELECTRICITY

Class:

ELECTRIC COMMUNICATION TECHNIQUE

Subclass:

PICTORIAL COMMUNICATION, e.g. TELEVISION

Child Classifications

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• H04N 7/01 Conversion of standards
• H04N 7/015 High-definition television systems
• H04N 7/025 Systems for transmission of digital non-picture data, e.g. of text during the active part of a television frame
• H04N 7/04 Systems for the transmission of one television signal, i.e. both picture and sound, by a single carrier
• H04N 7/06 Systems for the simultaneous transmission of one television signal, i.e. both picture and sound, by more than one carrier
• H04N 7/08 Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band
• H04N 7/1 Adaptations for transmission by electrical cable
• H04N 7/12 Systems in which the television signal is transmitted one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
• H04N 7/14 Systems for two-way working
• H04N 7/16 Analogue secrecy systems; Analogue subscription systems
• H04N 7/18 Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
• H04N 7/2 Adaptations for transmission via a GHz frequency band, e.g. via satellite
• H04N 7/22 Adaptations for optical transmission
• H04N 7/24 Systems for the transmission of television signals using pulse code modulation