Patent ID: 6377251
Filing Date: 2002-04-23
Classification: G09G,H04N

Abstract:
A video display apparatus comprising:timing data storing means for storing timing data relating to a plurality of video signal waveforms for a plurality of respective types of video signals, wherein contents of said timing data storing means are rewritable based on data stored on a recording medium supplied by a user; detecting means for detecting one of said plurality of types of video signals inputted thereto; retrieving means for retrieving said timing data from said timing data storing means using said one of said plurality of types of video signals detected by said detecting means as a retrieval key; operating means for calculating a plurality of adjustment parameters including a target horizontal size adjustment parameter for adjusting a video display state using said timing data acquired by said retrieving means from said timing data storing means, wherein said target horizontal size adjustment parameter is obtained by straight line interpolation of a calculated raster size and a calculated horizontal size adjustment parameter, and said calculated raster size and said calculated horizontal size adjustment parameter are calculated using said timing data; video display means for performing a video display based on said plurality of adjustment parameters including said target horizontal size adjustment parameter calculated by said operating means.