Patent ID: 6643328
Filing Date: 2003-11-04
Classification: H04N

Abstract:
A computer data signal encoded by an image encoder representing an encoded image formed of objects, with an object encoded by intracoding being an intra-video object plane (I-VOP), an object encoded by either intracoding or forward predictive coding being a predictive-VOP (P-VOP), and an object encoded by either intracoding, forward predictive coding, backward predictive coding, or bidirectionally predictive coding being a bidirectionally predictive-VOP (B-VOP), the image encoder comprising:a first adder for grouping said objects into one or more groups and adding an absolute time code to the group at a head of the group at which encoding of the group is started; a second-accuracy time information generator means for generating second-accuracy time information indicative of time having an accuracy of one second; a detailed time information generator for generating detailed time information indicative of a time period between said second-accuracy time information which directly precedes display time of said I-VOP, P-VOP, or B-VOP and the display time with an accuracy finer than the accuracy of one second; and a second adder for adding said second-accuracy time information and said detailed time information to a corresponding I-VOP, P-VOP, or B-VOP as information indicative of the display time of said I-VOP, P-VOP, and B-VOP.