US 8,009,535 B2Granted

Recording apparatus and method, computer program, and recording medium

AssigneePioneer Corporation

InventorsHiroyuki Uchino, Shogo Miyanabe, Yoshio Sasaki

Life of this patent

Estimating the term…

Loading patent…

Abstract

A recording apparatus includes: a first calculating device for calculating an optimum power for recording the data pattern into a recording-scheduled area (RSA) in an inner area; a first controlling device recording the data pattern with the optimum power outside an end on an outer side of the RSA; a second calculating device calculating an adjustment power used in adjusting a recording condition outside the end on the outer side of the RSA, considering a difference between recording sensitivity inside and outside the RSA; a second controlling device recording the data pattern for adjusting the recording condition with the adjustment power outside the RSA; a reading device obtaining a read signal; a measuring device measuring read signal jitter; an adjusting device adjusting the recording condition for satisfactory jitter; and a third controlling device to record the data pattern into the RSA using the optimum power and the adjusted recording condition.

Claims14

Dependent claims

A recording apparatus comprising:

a recording device for recording a desired data pattern onto a recording medium comprising an inner area and a user data area located on an outer side of the inner area;
a first calculating device for calculating an optimum power, which is used in recording the data pattern into a recording-scheduled area portion, before the data pattern is recorded into the recording-scheduled area portion which is an area portion in the user data area in which the data pattern is scheduled to be recorded by the recording device;
a first controlling device for controlling the recording device to record the data pattern with the optimum power into an area portion which is outer than an end on an outer side of the recording-scheduled area portion;
a second calculating device for calculating an adjustment power, which is used in adjusting a recording condition of the recording device in an area portion which is outer than the end on the outer side of the recording-scheduled area portion, in consideration of a difference between a recording sensitivity in the recording-scheduled area portion and a recording sensitivity in the area portion which is outer than the end on the outer side of the recording-scheduled area portion, by reading the data pattern recorded by the control of the first controlling device;
a second controlling device for controlling the recording device to record the data pattern for adjusting the recording condition with the adjustment power into the area portion which is outer than the end on the outer side of the recording-scheduled area portion;
a reading device for reading the data pattern recorded by the control of the second controlling device, thereby obtaining a read signal;
a measuring device for measuring jitter of the read signal;
an adjusting device for adjusting the recording condition such that the jitter measured by the measuring device satisfies a desired condition;
and
a third controlling device for controlling the recording device to start the recording of the data pattern into the recording-scheduled area portion by using the optimum power and the recording condition adjusted by the adjusting device.

7 more elements

A recording method in a recording apparatus comprising:

a recording device for recording a desired data pattern onto a recording medium comprising an inner area and a user data area located on an outer side of the inner area, the recording method comprising:
a first calculating process of calculating an optimum power, which is used in recording the data pattern into a recording-scheduled area portion, before the data pattern is recorded into the recording-scheduled area portion which is an area portion in the user data area in which the data pattern is scheduled to be recorded by the recording device;
a first controlling process of controlling the recording device to record the data pattern with the optimum power into an area portion which is outer than an end on an outer side of the recording-scheduled area portion;
a second calculating process of calculating an adjustment power, which is used in adjusting a recording condition of the recording device in an area portion which is outer than the end on the outer side of the recording-scheduled area portion, in consideration of a difference between a recording sensitivity in the recording-scheduled area portion and a recording sensitivity in the area portion which is outer than the end on the outer side of the recording-scheduled area portion, by reading the data pattern recorded by the control of the first controlling process;
a second controlling process of controlling the recording device to record the data pattern for adjusting the recording condition with the adjustment power into the area portion which is outer than the end on the outer side of the recording-scheduled area portion;
a reading process of reading the data pattern recorded by the control of the second controlling process, thereby obtaining a read signal;
a measuring process of measuring jitter of the read signal;
an adjusting process of adjusting the recording condition such that the jitter measured by the measuring process satisfies a desired condition;
and
a third controlling process of controlling the recording device to start the recording of the data pattern into the recording-scheduled area portion by using the optimum power and the recording condition adjusted by the adjusting process.

7 more elements

A computer readable recording medium recording thereon a computer program for recording control and for controlling a computer provided in a recording apparatus comprising:

a recording device for recording a desired data pattern onto a recording medium comprising an inner area and a user data area located on an outer side of the inner area;
a first calculating device for calculating an optimum power, which is used in recording the data pattern into a recording-scheduled area portion, before the data pattern is recorded into the recording-scheduled area portion which is an area portion in the user data area in which the data pattern is scheduled to be recorded by the recording device;
a first controlling device for controlling the recording device to record the data pattern with the optimum power into an area portion which is outer than an end on an outer side of the recording-scheduled area portion;
a second calculating device for calculating an adjustment power, which is used in adjusting a recording condition of the recording device in an area portion which is outer than the end on the outer side of the recording-scheduled area portion, in consideration of a difference between a recording sensitivity in the recording-scheduled area portion and a recording sensitivity in the area portion which is outer than the end on the outer side of the recording-scheduled area portion, by reading the data pattern recorded by the control of the first controlling device;
a second controlling device for controlling the recording device to record the data pattern for adjusting the recording condition with the adjustment power into the area portion which is outer than the end on the outer side of the recording-scheduled area portion;
a reading device for reading the data pattern recorded by the control of the second controlling device, thereby obtaining a read signal;
a measuring device for measuring jitter of the read signal;
an adjusting device for adjusting the recording condition such that the jitter measured by the measuring device satisfies a desired condition;
and a third controlling device for controlling the recording device to start the recording of the data pattern into the recording-scheduled area portion by using the optimum power and the recording condition adjusted by the adjusting device,
the computer program making the computer function as at least one portion of the recording device, the first calculating device, the first controlling device, the second calculating device, the second controlling device, the reading device, the measuring device, the adjusting device, and the third controlling device.

7 more elements

A recording medium which comprises an inner area and a user data area located on an outer side of the inner area and on which a data pattern is recorded by a recording apparatus comprising:

a recording device for recording the desired data pattern onto the recording medium;
a first calculating device for calculating an optimum power, which is used in recording the data pattern into a recording-scheduled area portion, before the data pattern is recorded into the recording-scheduled area portion which is an area portion in the user data area in which the data pattern is scheduled to be recorded by the recording device;
a first controlling device for controlling the recording device to record the data pattern with the optimum power into an area portion which is outer than an end on an outer side of the recording-scheduled area portion;
a second calculating device for calculating an adjustment power, which is used in adjusting a recording condition of the recording device in an area portion which is outer than the end on the outer side of the recording-scheduled area portion, in consideration of a difference between a recording sensitivity in the recording-scheduled area portion and a recording sensitivity in the area portion which is outer than the end on the outer side of the recording-scheduled area portion, by reading the data pattern recorded by the control of the first controlling device;
a second controlling device for controlling the recording device to record the data pattern for adjusting the recording condition with the adjustment power into the area portion which is outer than the end on the outer side of the recording-scheduled area portion;
a reading device for reading the data pattern recorded by the control of the second controlling device, thereby obtaining a read signal;
a measuring device for measuring jitter of the read signal;
an adjusting device for adjusting the recording condition such that the jitter measured by the measuring device satisfies a desired condition;
and a third controlling device for controlling the recording device to start the recording of the data pattern into the recording-scheduled area portion by using the optimum power and the recording condition adjusted by the adjusting device.

6 more elements

A recording medium comprising:

an inner area;
a user data area located on an outer side of the inner area;
and a recording condition recording area to record therein a recording condition adjusted by a recording apparatus comprising:
a recording device for recording a desired data pattern onto the recording medium;
a first calculating device for calculating an optimum power, which is used in recording the data pattern into a recording-scheduled area portion, before the data pattern is recorded into the recording-scheduled area portion which is an area portion in the user data area in which the data pattern is scheduled to be recorded by the recording device;
a first controlling device for controlling the recording device to record the data pattern with the optimum power into an area portion which is outer than an end on an outer side of the recording-scheduled area portion;
a second calculating device for calculating an adjustment power, which is used in adjusting the recording condition of the recording device in an area portion which is outer than the end on the outer side of the recording-scheduled area portion, in consideration of a difference between a recording sensitivity in the recording-scheduled area portion and a recording sensitivity in the area portion which is outer than the end on the outer side of the recording-scheduled area portion, by reading the data pattern recorded by the control of the first controlling device;
a second controlling device for controlling the recording device to record the data pattern for adjusting the recording condition with the adjustment power into the area portion which is outer than the end on the outer side of the recording-scheduled area portion;
a reading device for reading the data pattern recorded by the control of the second controlling device, thereby obtaining a read signal;
a measuring device for measuring jitter of the read signal;
an adjusting device for adjusting the recording condition such that the jitter measured by the measuring device satisfies a desired condition;
and a third controlling device for controlling the recording device to start the recording of the data pattern into the recording-scheduled area portion by using the optimum power and the recording condition adjusted by the adjusting device.

9 more elements

Dependencies are inferred from the claim text.