Patent ID: 8072394

Claim:
A method for using a data enable signal and pixel clock exclusive of their associated horizontal and vertical synchronization signals for a digital video signal to facilitate generating of signals corresponding to said associated horizontal and vertical synchronization signals, comprising: receiving a pixel clock having a plurality of periodic clock pulses; receiving a data enable signal with asserted and de-asserted states separated by leading and trailing signal edges; counting first and second portions of said plurality of pixel clock pulses corresponding to time intervals between unlike ones and like ones of said leading and trailing signal edges to produce at least first and second pixel clock counts, respectively; comparing respective ones of said plurality of first pixel clock counts to produce a first comparison count with a first learned value indicative of a difference between first and second ones of said plurality of first pixel clock counts; comparing respective ones of said plurality of second pixel clock counts to produce a second comparison count with a second learned value indicative of a difference between first and second ones of said plurality of second pixel clock counts; and counting each one of a plurality of successive portions of said plurality of pixel clock pulses through a count equal to said second learned value in a succession of pixel counts to produce a pixel count signal indicative of a horizontal line interval, and a total line signal indicative of a vertical line interval.