Patent ID: 6487316
Filing Date: 2002-11-26
Classification: H04L,H04N

Abstract:
A decoder in a receiving device for receiving, through a transmission channel, coded data from a coder in a transmitting device that performs inter-frame coding, and decoding said coded data to obtain a series of frames, comprising:receiving means for receiving said coded data and reference frame numbers from said coder; decoding means coupled to said receiving means, for decoding said coded data with reference to reference frames specified by said reference frame numbers; and an acknowledgement signal transmitter coupled to said decoding means, for transmitting acknowledgement signals, acknowledging respective frames, to said coder, said acknowledgement signals including frame numbers of said frames and indicating whether or not said decoder decoded said frames successfully; wherein said acknowledgment signals comprise positive acknowledgment signals indicating that respective frames were successfully decoded; and wherein each frame in said series of frames represents one picture.