• All sections
• H - Electricity
• H04N - Pictorial communication, e.g. television
• H04N 9/85 - Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only the recorded brightness signal occupying a frequency band totally overlapping the frequency band of the recorded chrominance signal, e.g. frequency interleaving

Patent holdings for IPC class H04N 9/85

Total number of patents in this class: 0

10-year publication summary

Principal owners for this class