Patent ID: 6456335
Filing Date: 2002-09-24
Classification: H04N

Abstract:
A multiple picture composing method for composing video signals from a plurality of video signal sources which operate asynchronously to each other, comprising the steps of:(a) successively selecting the video signals from the video signal sources; (b) reading the selected video signals in units of frames while maintaining horizontal and vertical synchronization of the selected video signals; (c) reducing the video signals in the units of frames in correspondence with areas allocated for each of pictures to be composed in a composed picture; (d) writing the reduced video signal in blocks of a picture composing memory corresponding to the areas allocated for each of the pictures to be composed; and (e) composing the video signals stored in the picture composing memory to obtain a composed video signal related to a composed picture and subjecting the composed video signal to at least one of an encoding process and a transmission process.