Patent ID: 7271843
Filing Date: 2007-09-18
Classification: H04N

Abstract:
1. Method for correcting line synchronization information of an analogue video line signal by (a) converting the analogue video line signal into a digital video signal, (b) analyzing the entire or a relevant part of the digital video signal comprising the line synchronization pulses to determine time instants defining the temporal position of the line synchronization pulse included in the analogue video line signal, comprising the following steps: (c) storing a predetermined number of video lines in a line delay, and (d) calculating a time instant for a video line preceding the currently received video line to mark the temporal position of the synchronization information of the video line, wherein the video line associated with the calculated time instant precedes the currently received video line by the predetermined number of video lines in the line delay, and wherein the time instant is a function of the line synchronization pulse positions of video lines including the currently received, at least one preceding and at least one succeeding video line.