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In TV signals colour burst is used
  • a)
    to maintain colour sequence
  • b)
    to ensure I and Q phase correctly
  • c)
    to synchronise colours
  • d)
    for interlacing of horizontal lines
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
In TV signals colour burst is useda)to maintain colour sequenceb)to en...
Colour burst consists of a short train of about 10 cycles sent to the receiver along with synchronous signals. It ensures I and Q phase correctly.
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Most Upvoted Answer
In TV signals colour burst is useda)to maintain colour sequenceb)to en...
Explanation:
Colour Burst in TV Signals
- The colour burst is a signal used in television broadcasting to ensure that the I and Q phases are correct.
- It is a reference signal that is sent during the horizontal blanking period of the video signal.
- The colour burst signal contains information about the phase and amplitude of the colour carrier signal.
Importance of Colour Burst
- Ensuring Correct I and Q Phases: The colour burst signal helps in maintaining the correct I and Q phases of the colour carrier signal.
- Accurate Colour Reproduction: By synchronizing the colour information, the colour burst signal ensures accurate colour reproduction on the screen.
- Preventing Colour Distortion: Without the colour burst signal, there can be colour distortion or incorrect colour representation on the screen.
Function of Colour Burst
- Maintaining Colour Sequence: The colour burst signal helps in maintaining the correct sequence of colours in the video signal.
- Synchronizing Colours: It synchronizes the colours to ensure accurate reproduction on the screen.
- Correcting I and Q Phases: The colour burst signal corrects any phase errors in the I and Q components of the colour signal.
In conclusion, the colour burst signal is essential in TV signals to ensure accurate colour reproduction by maintaining the correct I and Q phases of the colour carrier signal. It plays a crucial role in synchronizing colours and preventing colour distortion on the screen.
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In TV signals colour burst is useda)to maintain colour sequenceb)to ensure I and Q phase correctlyc)to synchronise coloursd)for interlacing of horizontal linesCorrect answer is option 'B'. Can you explain this answer?
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