METHOD AND DEVICE OF GENERATING INFORMATION CLOCK, METHOD AND DEVICE OF EXPOSING ORIGINAL DISK OF OPTICAL DISK, CLV MULTI-VALUE RECORDING METHOD FOR DEVICE OF EXPOSING ORIGINAL DISK OF OPTICAL DISK, CLV MULTI-VALUE RECORDING METHOD FOR OPTICAL DISK DRIVE, OPTICAL DISK DRIVE, FORMAT OF OPTICAL DISK MEDIA, AND REPRODUCING METHOD OF MULTI-VALUE INFORMATION OF OPTICAL DISK MEDIA AND CLV FORMAT

摘要

PROBLEM TO BE SOLVED: To realize recording and reproduction of multi-value information of constant linear density (CLV disk format) on the information track of an optical disk in a CAV drive state in which an ideal fundamental clock string (virtual CLV_CLK) for forming the CLV disk format by CAV drive on an original disk medium or optical disk media is introduced and a comparatively stable drive state is easily realized.;SOLUTION: A frequency in a CLV fundamental clock string for forming an information track is generated conforming to the following equation: (₀R₀+P₀²nT_n/(2))/(LCB) wherein: n = 0, 1, 2, 3, etc., ₀; rotation angular velocity of turn table, R₀; exposure start radius position, P; track pitch, T_n; arbitrary time interval of frequency updating, n; the number of times of updating formatter drive clock from start of exposure, L_CB; fundamental length on formed CLV information track.;COPYRIGHT: (C)2004,JPO