Patent ID: 6118921
Filing Date: 2000-09-12
Classification: H04N

Abstract:
A video segment reproducing apparatus for a digital video cassette recorder, for reproducing a video segment consisting of a predetermined number of sync blocks, state information bits and quantization information bits, said apparatus comprising:an error correction portion for error-correction decoding of reproduced sync block data;a frame memory for storing video data in a frame unit;a controller for inputting error-corrected data output from said error correction portion, detecting remaining errors in the error-corrected data, controlling of writing and reading of the error corrected data to and from said frame memory, and outputting a variable-speed reproduction signal during a variable-speed reproduction procedure;a segmentation portion for forming the video segment with the data output from said controller; anda variable-length decoder for processing continuous data bits between discrete cosine-transformed (DCT) blocks within one of the predetermined number of sync blocks or between ones of the predetermined number of sync blocks within the video segment, and variable-length decoding the processed data;wherein said variable-length decoder processes continuous data bits only between DCT blocks within one of the predetermined number of sync blocks in response to said controller outputting the variable-speed reproduction signal, and said variable-length decoder processes continuous data bits between ones of the predetermined number of sync blocks within the video segment when said controller does not output the variable-speed reproduction signal.