Optical disc recording method and optical disc recording apparatus for setting optimal recording power to record data

An optical disc recording method wherein data is recorded to a recording area of an optical disc by continuously increasing, from an inner track side to an outer track side of the optical disc, a recording velocity for recording data and, simultaneously, continuously strengthening a recording power of a light beam irradiated to the optical disc for recording the data, the method comprising the steps of:

• (a) allocating a plurality of zones to the recording area of the optical disc and assigning a recording power function to each zone representing, with a linear function, a relation ship of the recording velocity and an optimal value of the recording power of the light beam;
• (b) obtaining an optimal recording power by executing a test recording to a test area of the optical disc at one recording velocity before actual recording of data to the optical disc;
• (c) correcting the recording power function in accordance with the obtained optimal recording power;
• (d) deriving a recording power corresponding to a recording velocity from the corrected recording power function;
• and
• (e) recording the data by irradiating a light beam of the obtained recording power.

An optical disc recording method wherein data is recorded to a recording area of an optical disc by continuously increasing, from an inner track side to an outer track side of the optical disc, a recording velocity for recording data and, simultaneously, continuously strengthening a recording power of a light beam irradiated to the optical disc for recording the data, the method comprising the steps of:

• (a) allocating a plurality of zones to the recording area of the optical disc and assigning a recording power function to each zone representing, with a linear function, a relation ship of the recording velocity and an optimal value of the recording power of the light beam and setting a coefficient representing a relationship of slopes of the recording power functions;
• (b) obtaining an optimal recording power by executing a test recording to a test area of the optical disc at two recording velocities corresponding to those of a predetermined zone before actual recording of data to the optical disc;
• (c) correcting the slope of the recording power function of the predetermined zone in accordance with the obtained optimal recording power and correcting the slopes of other zones in accordance with the corrected recording power function of the predetermined zone and the coefficient;
• (d) deriving a recording power corresponding to a recording velocity from the corrected recording power function;
• and
• (e) recording the data by irradiating a light beam of the obtained recording power.

An optical disc recording method wherein data is recorded to a recording area of an optical disc by continuously increasing, from an inner track side to an outer track side of the optical disc, a recording velocity for recording data and, simultaneously, continuously strengthening a recording power of a light beam irradiated to the optical disc for recording the data, the method comprising the steps of:

• (a) allocating a plurality of zones to the recording area of the optical disc and assigning a recording power function to each zone representing, with a linear function, a relation ship of the recording velocity and an optimal value of the recording power of the light beam, setting a full recording power function representing, with a linear function, a relationship between two recording velocities that are a minimum and a maximum recording velocities in all over the recording area and an optimal recording power of the light beam and setting a coefficient representing relationship between a slope of the full recording power function and a slope of the recording power function of each zone;
• (b) obtaining an optimal recording power by executing a test recording to a test area of the optical disc at the two recording velocities that are the minimum and the maximum recording velocities before actual recording of data to the optical disc;
• (c) correcting the slope of the full recording power function in accordance with the obtained optimal recording power and correcting the slopes of the recording power function of each zone in accordance with the corrected full recording power function and the coefficient;
• (d) deriving a recording power corresponding to a recording velocity from the corrected recording power function;
• and
• (e) recording the data by irradiating a light beam of the obtained recording power.

An optical disc recording method wherein data is recorded to a recording area of an optical disc by continuously increasing, from an inner track side to an outer track side of the optical disc, a recording velocity for recording data and, simultaneously, continuously strengthening a recording power of a light beam irradiated to the optical disc for recording the data, the method comprising the steps of:

• (a) allocating a plurality of zones to the recording area of the optical disc and assigning a recording parameter function to each zone representing, with a linear function, a relation ship of the recording velocity and a parameter for recording power controlling waveform of a light beam;
• (b) obtaining an optimal value of the parameter by executing a test recording to a test area of the optical disc at one recording velocity before actual recording of data to the optical disc;
• (c) correcting the recording parameter function in accordance with the obtained optimal parameter;
• (d) deriving a parameter corresponding to a recording velocity from the corrected recording parameter function;
• and
• (e) recording the data by irradiating a light beam of the recording power controlling waveform to which the obtained parameter.

An optical disc recording method wherein data is recorded to a recording area of an optical disc by continuously increasing, from an inner track side to an outer track side of the optical disc, a recording velocity for recording data and, simultaneously, continuously strengthening a recording power of a light beam irradiated to the optical disc for recording the data, the method comprising the steps of:

• (a) allocating a plurality of zones to the recording area of the optical disc and assigning a recording parameter function to each zone representing, with a linear function, a relation ship of the recording velocity and a parameter for recording power controlling waveform of a light beam and setting a coefficient representing a relationship of a slope of the recording parameter function of each zone;
• (b) obtaining an optimal value of the parameter by executing a test recording to a test area of the optical disc at two recording velocities corresponding to those of a predetermined zone before actual recording of data to the optical disc;
• (c) correcting the slope of the recording parameter function of the predetermined zone in accordance with the obtained optimal recording power and correcting the slopes of the recording parameters of other zones in accordance with the corrected recording parameter function of the predetermined zone and the coefficient;
• (d) deriving a parameter corresponding to a recording velocity from the corrected recording parameter function;
• and
• (e) recording the data by irradiating a light beam of the recording power controlling waveform to which the obtained parameter.

An optical disc recording method wherein data is recorded to a recording area of an optical disc by continuously increasing, from an inner track side to an outer track side of the optical disc, a recording velocity for recording data and, simultaneously, continuously strengthening a recording power of a light beam irradiated to the optical disc for recording the data, the method comprising the steps of:

• (a) allocating a plurality of zones to the recording area of the optical disc and assigning a recording parameter function to each zone representing, with a linear function, a relation ship of the recording velocity and a parameter for recording power controlling waveform of a light beam, setting a full recording parameter function representing, with a linear function, a relationship between two recording velocities that are a minimum and a maximum recording velocities in all over the recording area and an optimal value of the parameter for recording power controlling waveform of a light beam and setting a coefficient representing relationship between a slope of the full recording parameter function and a slope of the recording parameter function of each zone;
• (b) obtaining an optimal value of the parameter by executing a test recording to a test area of the optical disc at the two recording velocities that are the minimum and the maximum recording velocities before actual recording of data to the optical disc;
• (c) correcting the slope of the full recording parameter function in accordance with the obtained optimal recording power and correcting the slopes of the recording parameter function of each zone in accordance with the corrected full recording parameter function and the coefficient;
• (d) deriving a parameter corresponding to a recording velocity from the corrected recording parameter function;
• and
• (e) recording the data by irradiating a light beam of the recording power controlling waveform to which the obtained parameter.

An optical disc recording apparatus, comprising:

• an setting device that sets a recording parameter function representing a relationship between a recording velocity for recording data to an optical disc and a parameter for optimally controlling a recording power controlling waveform for controlling a recording power of a light beam irradiated to the optical disc for recording the data;
• an optimal value obtaining device that obtains an optimal value for the parameter by executing a test recording at one recording velocity or at a plurality of recording velocities to a test area of the optical disc before actual data recording to the optical disc;
• a correcting device that corrects the recording parameter function in accordance with the obtained optimal value for the parameter;
• a parameter deriving device that derives the parameter corresponding to a recording velocity from the corrected recording parameter function;
• and
• a recording device that records the data by irradiating a light beam of the recording power controlling waveform to which the obtained parameter is applied.

An optical disc recording apparatus wherein data is recorded to a recording area of an optical disc by continuously increasing, from an inner track side to an outer track side of the optical disc, a recording velocity for recording data and, simultaneously, continuously strengthening a recording power of a light beam irradiated to the optical disc for recording the data, the apparatus comprising:

• an allocating device that allocates a plurality of zones to the recording area of the optical disc and assigns a recording power function to each zone representing, with a linear function, a relation ship of the recording velocity and an optimal value of the recording power of the light beam;
• an optimal recording power obtaining device that obtains an optimal recording power by executing a test recording to a test area of the optical disc at one recording velocity before actual recording of data to the optical disc;
• a correcting device that corrects the recording power function in accordance with the obtained optimal recording power;
• a recording power deriving device that derives a recording power corresponding to a recording velocity from the corrected recording power function;
• and
• a recording device that records the data by irradiating a light beam of the obtained recording power.

An optical disc recording apparatus wherein data is recorded to a recording area of an optical disc by continuously increasing, from an inner track side to an outer track side of the optical disc, a recording velocity for recording data and, simultaneously, continuously strengthening a recording power of a light beam irradiated to the optical disc for recording the data, the apparatus comprising:

• an allocating device that allocates a plurality of zones to the recording area of the optical disc and assigns a recording power function to each zone representing, with a linear function, a relation ship of the recording velocity and an optimal value of the recording power of the light beam and sets a coefficient representing a relationship of slopes of the recording power functions;
• an optimal recording power obtaining device that obtains an optimal recording power by executing a test recording to a test area of the optical disc at two recording velocities corresponding to those of a predetermined zone before actual recording of data to the optical disc;
• a correcting device that corrects the slope of the recording power function of the predetermined zone in accordance with the obtained optimal recording power and corrects the slopes of other zones in accordance with the corrected recording power function of the predetermined zone and the coefficient;
• a recording power deriving device that derives a recording power corresponding to a recording velocity from the corrected recording power function;
• and
• a recording device that records the data by irradiating a light beam of the obtained recording power.

An optical disc recording apparatus wherein data is recorded to a recording area of an optical disc by continuously increasing, from an inner track side to an outer track side of the optical disc, a recording velocity for recording data and, simultaneously, continuously strengthening a recording power of a light beam irradiated to the optical disc for recording the data, the apparatus comprising:

• an allocating device that allocates a plurality of zones to the recording area of the optical disc and assigns a recording power function to each zone representing, with a linear function, a relationship of the recording velocity and an optimal value of the recording power of the light beam and sets a full recording power function representing, with a linear function, a relationship between two recording velocities that are a minimum and a maximum recording velocities in all over the recording area and an optimal recording power of the light beam and sets a coefficient representing relationship between a slope of the full recording power function and a slope of the recording power function of each zone;
• an optimal recording power obtaining device that obtains an optimal recording power by executing a test recording to a test area of the optical disc at the two recording velocities that are the minimum and the maximum recording velocities before actual recording of data to the optical disc;
• a correcting device that corrects the slope of the full recording power function in accordance with the obtained optimal recording power and corrects the slopes of the recording power function of each zone in accordance with the corrected full recording power function and the coefficient;
• a recording power deriving device that derives a recording power corresponding to a recording velocity from the corrected recording power function;
• and
• a recording device that records the data by irradiating a light beam of the obtained recording power.

An optical disc recording apparatus wherein data is recorded to a recording area of an optical disc by continuously increasing, from an inner track side to an outer track side of the optical disc, a recording velocity for recording data and, simultaneously, continuously strengthening a recording power of a light beam irradiated to the optical disc for recording the data, the apparatus comprising:

• an allocating device that allocates a plurality of zones to the recording area of the optical disc and assigns a recording parameter function to each zone representing, with a linear function, a relation ship of the recording velocity and a parameter for recording power controlling waveform of a light beam;
• an optimal recording power obtaining device that obtains an optimal value of the parameter by executing a test recording to a test area of the optical disc at one recording velocity before actual recording of data to the optical disc;
• a correcting device that corrects the recording parameter function in accordance with the obtained optimal parameter;
• a recording power deriving device that derives a parameter corresponding to a recording velocity from the corrected recording parameter function;
• and
• a recording device that records the data by irradiating a light beam of the recording power controlling waveform to which the obtained parameter.

An optical disc recording apparatus wherein data is recorded to a recording area of an optical disc by continuously increasing, from an inner track side to an outer track side of the optical disc, a recording velocity for recording data and, simultaneously, continuously strengthening a recording power of a light beam irradiated to the optical disc for recording the data, the apparatus comprising:

• an allocating device that allocates a plurality of zones to the recording area of the optical disc and assigns a recording parameter function to each zone representing, with a linear function, a relation ship of the recording velocity and a parameter for recording power controlling waveform of a light beam and sets a coefficient representing a relationship of a slope of the recording parameter function of each zone;
• an optimal recording power obtaining device that obtains an optimal value of the parameter by executing a test recording to a test area of the optical disc at two recording velocities corresponding to those of a predetermined zone before actual recording of data to the optical disc;
• a correcting device that corrects the slope of the recording parameter function of the predetermined zone in accordance with the obtained optimal recording power and corrects the slopes of the recording parameters of other zones in accordance with the corrected recording parameter function of the predetermined zone and the coefficient;
• a recording power deriving device that derives a parameter corresponding to a recording velocity from the corrected recording parameter function;
• and
• a recording device that records the data by irradiating a light beam of the recording power controlling waveform to which the obtained parameter.

An optical disc recording apparatus wherein data is recorded to a recording area of an optical disc by continuously increasing, from an inner track side to an outer track side of the optical disc, a recording velocity for recording data and, simultaneously, continuously strengthening a recording power of a light beam irradiated to the optical disc for recording the data, the apparatus comprising:

• an allocating device that allocates a plurality of zones to the recording area of the optical disc and assigns a recording parameter function to each zone representing, with a linear function, a relation ship of the recording velocity and a parameter for recording power controlling waveform of a light beam and sets a full recording parameter function representing, with a linear function, a relationship between two recording velocities that are a minimum and a maximum recording velocities in all over the recording area and an optimal value of the parameter for recording power controlling waveform of a light beam and sets a coefficient representing relationship between a slope of the full recording parameter function and a slope of the recording parameter function of each zone;
• an optimal recording power obtaining device that obtains an optimal value of the parameter by executing a test recording to a test area of the optical disc at the two recording velocities that are the minimum and the maximum recording velocities before actual recording of data to the optical disc;
• a correcting device that corrects the slope of the full recording parameter function in accordance with the obtained optimal recording power and corrects the slopes of the recording parameter function of each zone in accordance with the corrected full recording parameter function and the coefficient;
• a recording power deriving device that derives a parameter corresponding to a recording velocity from the corrected recording parameter function;
• and
• a recording device that records the data by irradiating a light beam of the recording power controlling waveform to which the obtained parameter.