Patent ID: 6535557
Filing Date: 2003-03-18
Classification: H04N

Abstract:
An apparatus for coding a moving picture image, in which the moving picture is coded into a digital moving picture stream when the moving picture image is transmitted via a network and further in which the moving picture image is coded in such a manner that a data unit including a synchronous signal corresponds to a data transmission unit on the network, comprising;an asynchronous layer encoder for performing a coding operation of the moving picture image till an uppermost layer having no synchronicity, in a hierarchical structure of a moving picture compression method; a buffer for storing coded data outputted from the asynchronous layer encoder in order; a synchronous layer encoder for picking up the coded data stored in the buffer and performing a coding operation of the moving picture image of a layer have synchronicity and till a layer positioned upper than that layer by inserting the synchronous signal, to obtain a digital moving picture stream; and a synchronous layer generation controller for observing a data amount of the coded data stored in a buffer and generating a coding instruction to the synchronous layer encoder when the data amount reaches to the data transmission unit on the network.