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a composite video signal color decoder with multi digital standards. The multistandard decoder according to the invention can handle NTSC or PAL video signals in a selected manner without requiring prior knowledge of the relevant signal standard.
It consists of a sample rate converter, which transforms video signal sample values from video signals digitalized with a first predetermined clock frequency into video signal sample values of a second virtual sampling frequency,
a phase-locked loop for controlling the sample rate converter, which includes a sync detector to determine the line sync pulse and set the virtual sampling frequency to an integer multiple of the video signal’s line frequency, and a buffer.
Color decoding is a technical term referring to the process whereby uncompressed RGB color information is encoded into compressed YPbPr (analog) or YCbCr (digital) format and then subsequently decoded back into RGB for display.
The Global multi-standard color decoder market accounted for $XX Billion in 2021 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
The PAL/NTSC, PAL-N, PAL-M, N4.4, and SECAM composite inputs are all accepted by the IQDMSDS module, which then digitises them to 10-bits (8-bits for SECAM).
Decoding this involves choosing between adaptive line combs and traditional low pass/high pass filters. A complete frame synchronizer that can re-time the video to a studio reference black burst is then used to process the decoded signal.
After that, the video is re-synchronized and transformed into a component serial output with switchable embedded EDH.PAL/NTSC-M/PAL-M/PAL-N/NTSC4.43/NTSC-J/SECAM multi-standard decoding.
10-bit sampling and many operating modes. Line comb filter that adapts (not SECAM).Full proc. amp controls; simple mode decoding; full frame synchronizer with phase controls.
Minimal delay setting (not for SECAM or VHS).Four 10-bit serial 4:2:2 outputs and the RollTrack output. Test pattern generator, 20-character caption generator, switchable EDH insertion, RollCallTM compatibility, four naming user memory per color standard