Information recording apparatus, information recording method and information recording program

An information recording apparatus which irradiates a laser light onto a recording medium and forms a recording mark corresponding to a recording signal, comprising:

• a light source which emits the laser light;
• and
• a signal generating unit which generates a recording pulse signal driving the light source based on the recording signal and including a mark period for forming the recording mark and a space period for forming no recording mark,
• wherein the signal generating unit makes a level of the recording pulse signal corresponds to a recording power having waveform distortion equal to or smaller than a predetermined value in a mark period corresponding to a long mark and corresponds to a recording power having asymmetry within a predetermined range in a mark period corresponding to a short mark, thereby to generate the recording pulse signal.

An information recording apparatus which irradiates a laser light onto a recording medium and forms a recording mark corresponding to a recording signal, comprising;

• a light source which emits the laser light;
• and
• a signal generating unit which generates a recording pulse signal driving the light source based on the recording signal and including a mark period for forming the recording mark and a space period for forming no recording mark,
• wherein the signal generating unit makes a level of the recording pulse signal corresponds to a recording power ensuring reproduction compatibility and having waveform distortion equal to or smaller than a predetermined value in a mark period corresponding to a long mark and corresponds to a recording power having asymmetry within a predetermined range in a mark period corresponding to a short mark, thereby to generate the recording pulse signal.

An information recording method which irradiates a laser light onto a recording medium and forms a recording mark corresponding to a recording signal, comprising:

• a signal generating process which generates a recording pulse signal driving a light source based on the recording signal and including a mark period for forming the recording mark and a space period for forming no recording mark;
• and
• an irradiating process which irradiates a laser pulse onto the recording medium based on the recording pulse signal,
• wherein the signal generating process makes a level of the recording pulse signal corresponds to a recording power ensuring reproduction compatibility in a mark period corresponding to a long mark and correspond to a recording power having asymmetry within a predetermined range in a mark period corresponding to a short mark, thereby to generate the recording pulse signal.

An information recording method which irradiates a laser light onto a recording medium and forms a recording mark corresponding to a recording signal, comprising

• a signal generating process which generates a recording pulse signal driving a light source based on the recording signal and including a mark period for forming the recording mark and a space period for forming no recording mark;
• and
• an irradiating process which irradiates a laser pulse onto the recording medium based on the recording pulse signal,
• wherein the signal generating process makes a level of the recording pulse signal corresponds to a recording power having waveform distortion equal to or smaller than a predetermined value in a mark period corresponding to a long mark and correspond to a recording power having asymmetry within a predetermined range in a mark period corresponding to a short mark, thereby to generate the recording pulse signal.

An information recording method which irradiates a laser light onto a recording medium and forms a recording mark corresponding to a recording signal, comprising:

• a signal generating process which generates a recording pulse signal driving a light source based on the recording signal and including a mark period for forming the recording mark and a space period for forming no recording mark;
• and
• an irradiating process which irradiates a laser pulse onto the recording medium based on the recording pulse signal,
• wherein the signal generating process makes a level of the recording pulse signal corresponds to a recording power ensuring reproduction compatibility and having waveform distortion equal to or smaller than a predetermined value in a mark period corresponding to a long mark and correspond to a recording power having asymmetry within a predetermined range in a mark period corresponding to a short mark, thereby to generate the recording pulse signal.

A computer-readable recording medium with a computer program recorded thereon executed in an information recording apparatus including a light source, irradiating a laser light onto a recording medium to form a recording mark corresponding to a recording signal, and making the information recording apparatus execute:

• a signal generating process which generates a recording pulse signal driving the light source based on the recording signal and including a mark period for forming the recording mark and a space period for forming no recording mark;
• and
• an irradiating process which irradiates a laser pulse onto the recording medium based on the recording pulse signal,
• wherein the signal generating process makes a level of the recording pulse signal corresponds to a recording power ensuring reproduction compatibility in a mark period corresponding to a long mark and correspond to a recording power having asymmetry within a predetermined range in a mark period corresponding to a short mark, thereby to generate the recording pulse signal.

A computer-readable recording medium with a computer program recorded thereon executed in an information recording apparatus including a light source, irradiating a laser light onto a recording medium to form a recording mark corresponding to a recording signal, and making the information recording apparatus execute:

• a signal generating process which generates a recording pulse signal driving the light source based on the recording signal and including a mark period for forming the recording mark and a space period for forming no recording mark;
• and
• an irradiating process which irradiates a laser pulse onto the recording medium based on the recording pulse signal,
• wherein the signal generating process makes a level of the recording pulse signal corresponds to a recording power having waveform distortion equal to or smaller than a predetermined value in a mark period corresponding to a long mark and correspond to a recording power having asymmetry within a predetermined range in a mark period corresponding to a short mark, thereby to generate the recording pulse signal.

A computer-readable recording medium with a computer program recorded thereon executed in an information recording apparatus including a light source, irradiating a laser light onto a recording medium to form a recording mark corresponding to a recording signal, and making the information recording apparatus execute:

• a signal generating process which generates a recording pulse signal driving the light source based on the recoding signal and including a mark period for forming the recording mark and a space period for forming no recording mark;
• and
• an irradiating process which irradiates a laser pulse onto the recording medium based on the recording pulse signal,
• wherein the signal generating process makes a level of the recording pulse signal corresponds to a recording power ensuring reproduction compatibility and having waveform distortion equal to or smaller than a predetermined value in a mark period corresponding to a long mark and correspond to a recording power having asymmetry within a predetermined range in a mark period corresponding to a short mark, thereby to generate the recording pulse signal.