Patent ID: 6330394
Filing Date: 2001-12-11
Classification: G11B,H04N

Abstract:
A device for carrying out record and play-back, comprising:a video/audio coding circuit for performing compression coding and multiplexing of an input video/audio signal;a control error correction code block generating circuit for generating a control error correction code block under the control of a central processing unit control circuit;a recording signal processing circuit for performing shuffling, addition of an error correction code, and record coding to an output signal of said the video/audio coding circuit and for multiplexing said video/audio signal and said control error correction code block;an optical head for recording output data of the recording signal processing circuit on a disk;a play-back signal processing circuit for performing record code decoding, error correction, and deshuffling to data played back from the disk by the optical head;a video/audio decoding circuit for decoding video/audio data on the basis of an output of said play-back signal processing circuit to output the video/audio data as a video/audio signal; anda control error correction code block playing-back circuit for playing back a control error correction code block on the basis of an output of said play-back signal processing circuit and for causing the central processing unit control circuit to control the optical head and a spindle motor on the basis of the control error correction code block and an execution instruction.