Control method of recording speed in optical disc drives
View Patent ↗The present invention discloses a control method of recording speed in an optical disc drive. Firstly it is determined whether the recording speed is higher than a data transfer rate from the host to the data buffer in the optical disc drive. If so, the recording speed is set to the data transfer rate and disc writing is continued with a constant linear velocity (CLV) mode.
1. A control method of recording speed in an optical disc drive, comprising the steps of:
when writing a disc with a specific mode, stopping the specific mode if, at a time point, a predetermined recording speed of the specific mode for writing the disc in the optical disc drive is higher than a data transfer rate from a host to a data buffer in the optical disc drive; and
writing a disc area which is after the time point on the disc at the data transfer rate when the specific mode is stopped.
2. The control method according to claim 1 , wherein the specific mode is a constant angular velocity (CAV) mode.
3. The control method according to claim 1 , wherein the specific mode is a partial constant angular velocity (PCAV) mode.
4. The control method according to claim 3 , wherein the recording speed is a recording speed of constant linear velocity zone of the PCAV mode and is a highest recording speed that the disc allows.
5. The control method according to claim 3 , wherein the recording speed is a recording speed of constant linear velocity zone of the PCAV mode and is a highest recording speed supported by the optical disc drive.
6. The control method according to claim 1 , wherein the disc is a recordable disc.
7. A control method of recording speed in an optical disc drive, comprising the steps of:
determining, when writing a disc, whether a predetermined recording speed of the optical disc drive is higher than a data transfer rate from a host to a data buffer in the optical disc drive; and
If so, setting the recording speed to the data transfer rate and continuing writing the disc with a constant linear velocity mode.
8. The control method according to claim 7 , wherein the specific mode is a constant angular velocity (CAV) mode.
9. The control method according to claim 7 , wherein the specific mode is a partial constant angular velocity (PCAV) mode.
10. The control method according to claim 9 , wherein the recording speed is a recording speed of constant linear velocity zone of the PCAV mode and is a highest recording speed that the disc allows.
11. The control method according to claim 9 , wherein the recording speed is a recording speed of constant linear velocity zone of the PCAV mode and is a highest recording speed supported by the optical disc drive.
12. The control method according to claim 7 , wherein the disc is a recordable disk.
13. The control method according to claim 7 , wherein the disc is acompact disc-rewritable (CD-RW) disc.