| 摘要 |
A rate-variable optical disc recording method and apparatus which is suitable for varying a rate at which a user information is recorded on an optical disc pre-formatted by a user support information. The method and apparatus detects a first predetermined period of first frequency signal for dividing a track of the optical disc into a predetermined size of unit regions from the optical disc pre-formatted by the first frequency signal, generates a second predetermined period of second frequency signal adaptively changing in response to a period variation in the first frequency signal, and records a user information from an information source on the optical disc by synchronizing it with the second frequency signal. Further, the method and apparatus generates a third frequency signal having a period changed in accordance with a transfer rate of the user information, and compares the first frequency signal with the third frequency signal to control a rotation velocity of the optical disc. A rate control apparatus according to the method and apparatus can shorten the time when the user information is recorded on the optical disc, and can the user information on the optical disc in real time.
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