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Video apparatus and method of measuring jitter/wander

  • US 20080143874A1
  • Filed: 12/11/2007
  • Published: 06/19/2008
  • Est. Priority Date: 12/13/2006
  • Status: Active Grant
First Claim
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1. A video apparatus for processing an input video signal in synchronization with an external reference signal, comprising:

  • a phase compensation FIFO memory to which the input video signal is written in synchronization with a clock demodulated from the input video signal and from which the video signal is read in synchronization with an internal reference clock of the apparatus generated from the external reference signal; and

    measuring means for measuring an amount of jitter/wander of the input video signal based on a calculation of a difference between data volume of the video signal obtained in the FIFO memory and a predetermined reference volume.

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