Patent ID: 6847395
Filing Date: 2005-01-25
Classification: H04N

Abstract:
1. An integrated digital television (DTV) diagnostic instrument comprising: at least one of a video display device (VDD) and an audio display device (AudDD); DTV means for receiving a live DTV signal, reconstructing at least one of a video stream and an audio stream from said DTV signal, and displaying at least one of said video steam and said audio stream on said VDD or said AudDD, respectively; monitoring means, responsive to said DTV means for monitoring digital properties of the live DTV signal; and measurement means for quantitatively monitoring at least one metric of the quality of the live DTV signal, wherein said measurement means is operable to display at least one of the following: a first graph of a carrier to noise ratio of said DTV signal at an input to a vestigial side band decoder, a second graph of a packet error count, and a third graph of equalizer tap coefficients.