Device and method of recording information on an optical disc
View Patent ↗A device for recording information on an optical disc so as to improve the recording quality of the information when a recording operation has just started. The recording device includes a luminous element radiating a light for recording information on the optical disc; a radiation intensity controller constantly controlling an intensity of radiation of the light radiated by the luminous element; a constant outputting unit providing a constant energy to the luminous element; a selector selectively selecting one of the outputs of the intensity of radiation controller and the constant outputting unit; wherein, the selector selects the output from the constant outputting unit during a predetermined duration from a starting time of recording the information on the optical disc, and selects the output from the intensity of radiation controller afterward.
1. A device for recording information on a disc; comprising:
a luminous element radiating a light for recording the information on the disc; and
a controller controlling an intensity of radiation of the light based on a constant voltage for a predetermined period of time from a time the recording of the information to the disc starts,
wherein the constant voltage is determined so that the intensity of the radiation of the laser is greater than an intensity of radiation necessary to record the information on the disc.
2. The device of claim 1 , further comprising a temperature sensor sensing a temperature within the device, wherein a level of the constant voltage is adjusted based on a sensed temperature.
3. The device of claim 2 , wherein the controller determines an optimized intensity of the laser beam by performing a test recording while the intensity of laser beam is varied within a predetermined area of the disc, and wherein the controller uses the test recording to control adjustment of the constant voltage in response to the sensed temperature within the recording device.
4. A device for recording information on a disc, comprising:
a luminous element radiating a light for recording the information on the disc; and
a controller controlling an intensity of radiation of the light based on a constant voltage for a predetermined period of time from a time the recording of the information to the disc starts,
wherein a level of the constant voltage is redetermined before the recording of the information starts.
5. A method of recording information on a disc, comprising:
radiating a light for recording the information on the disc; and
controlling an intensity of radiation of the light based on a constant voltage for a predetermined period of time from a time the recording of the information to the disc starts,
wherein the constant voltage is determined so that the intensity of the radiation of the laser is greater than an intensity of radiation necessary to record the information on the disc.
6. The method of claim 5 , further comprising sensing a temperature within the device, wherein, in the controlling, a level of the constant voltage is adjusted based on a sensed temperature.
7. The method of claim 6 , wherein, in the controlling, an optimized intensity of the laser beam is determined by performing a test recording while the intensity of laser beam is varied within a predetermined area of the disc, and wherein the test recording is used to control adjustment of the constant voltage in response to the sensed temperature within the recording device.
8. A method of recording information on a disc, comprising:
radiating a light for recording the information on the disc; and
controlling an intensity of radiation of the light based on a constant voltage for a predetermined period of time from a time the recording of the information to the disc starts,
wherein a level of the constant voltage is redetermined before the recording of the information starts.