Patent ID: 6744975
Filing Date: 2004-06-01
Classification: G11B,H04N

Abstract:
A video and audio multiplex recording apparatus, comprising:video signal compression means for inputting digital video data and forming a unit video block for each of predetermined frame numbers, and by compressing the video data included in each unit video block by a first compression rate and packaging it by a predetermined information amount unit, for generating and outputting compression video data; audio signal compression means for inputting digital audio data and forming a unit audio block for each of predetermined sample numbers, and by compressing the audio data included in each unit audio block by a second compression rate and packaging it by a predetermined information amount unit, for generating and outputting compression audio data; multiplexing means for time-division-multiplexing the compression video data and the compression audio data according to a control signal, and generating and outputting multiplexing data; an encoder for encoding the multiplexing data by a predetermined encoding system, and generating and outputting encode data; recording means for recording the encode data in a recording medium; and control means including memory means for storing an allocation table in which the unit video block and the unit audio block are allocated, according to a least integer ratio which is a ratio of the number of the unit video blocks and the number of the unit audio blocks when a least common multiple of a cycle period of the unit video block and that of the unit audio block is obtained, for generating and outputting the control signal according to the allocation table.