| 摘要 |
PROBLEM TO BE SOLVED: To make data recordable at high density by generating a synchronizing wobble signal having a roughly constant frequency and an address information wobble signal having a frequency proportional to the recording radius of a master disk in accordance with first and second wobbles and forming the first and second wobbles on the master disk revolving with a constant angular velocity to use a CAV system and a CLV system jointly. SOLUTION: In an optical master disk recording device A, a synchronizing wobble signal is generated from a master clock which is outputted by a XTAL circuit A1 by frequency dividers A2, A3 and a LPF: A4 to drive a light deflector A6 via an amplifier A5. Moreover, a master disk AD is revolved with a constant angular velocity based on the master clock. Furthermover, a sector synchronizing signal having a frequency proportional to the recording radius of the master disk AD is generated from the master clock by a CLV synchronizing signal generator A11 to drive a light deflector A16 via an address generator A12 to an amplifier A15. Thus, a wobbling can be recorded on the master disk AD with a CAV. |
