JP2007305303A - Information recording device and information recording method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a parameter setting device or the like in which an unused sector is correctly retrieved in a PCA (power calibration area) and recording power can be correctly regulated using it. <P>SOLUTION: When recording power used in recording optical information to a DVD-R is set using any of sectors provided on the DVD-R as the PCA, it is confirmed whether a specific detection signal previously set from any of sectors is detected or not (step S2), the unused sector in which the specific detection signal is not detected is retrieved on the basis of the confirmation result (step S3), a mark signal for obtaining the specific detection signal is recorded in the retrieved unused sector (step S5), the setting signal for setting the recording power is recorded in the unused sector except for at least an area in which the mark signal is recorded (step S6), and the recorded setting signal is optically detected and the recording power is set (step S13). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present application belongs to the technical field of an information recording apparatus and an information recording method, and more specifically, an information recording apparatus and information for recording information by setting a recording parameter used for information recording on a recording medium before the information recording. It belongs to the technical field of recording methods.

  In recent years, a standard for a DVD, which is an optical disc having a recording capacity significantly higher than that of a conventional CD (Compact Disc), has been formulated, and among these, a read-only DVD is already becoming common.

  Furthermore, standardization is progressing not only for the reproduction-only DVD but also for a DVD capable of recording information.

  Here, as the recordable DVD, a DVD-R (DVD-Recordable), which is a DVD capable of recording information only once (that is, only capable of being additionally recorded), and a DVD capable of recording information a plurality of times. -RW (DVD-Re-Recordable), but the former and the latter are being standardized.

  By the way, in general, when information recording is performed on the recordable DVD, the information recording is performed by irradiating the DVD with a recording light beam whose intensity is modulated in accordance with the information to be recorded. However, the intensity of the light beam (hereinafter simply referred to as recording power) needs to be corrected every time information recording is performed. This is because the recording power optimum for information recording at that time may change due to contamination of the recordable DVD itself, temperature, or a temporal change in reflectance on the information recording surface.

  Therefore, in order to execute the regulation processing, in the DVD-R standard, areas called PCA (Power Calibration Area) and RMA (Recording Management Area) are further inside the so-called lead-in area in the DVD-R. It is prescribed to provide.

  Here, the PCA is divided into a plurality of sectors, and the regulation processing is executed using one or a plurality of the sectors. More specifically, in the PCA corresponding to the one or a plurality of sectors, while increasing the recording power from the preset minimum value to the maximum value sequentially, for example, 3T (T is information recording) The setting signal having a random pulse width of 11T to 11T is sequentially recorded, and then the recorded setting signal is sequentially detected from the one recorded with the minimum recording power.・ Recording power used during recording and setting signal recording that matches the peak level and bottom level for each playback signal corresponding to each pulse width at the time of playback is set as the optimum recording power of the light beam during information recording. Thereafter, the actual recording of the recording information to be recorded is executed using the light beam having the optimum recording power.

  Then, the optimum recording power calculated in this way and the sector number in the PCA used for setting the optimum recording power (that is, the number of the used sector) are recorded as rectification history so as to be identifiable in the RMA. Thereafter, the recording of the actual recording information is started.

  In the above-described DVD-R, information recording can be executed only once over the entire surface, and therefore the sector in the PCA once used for optimizing the recording power is not used for the subsequent optimization. It will not be possible. At this time, if a new recording power optimization is executed using a used sector by mistake, the recording power optimization cannot be performed accurately, and therefore subsequent information recording cannot be performed accurately. It becomes.

  Here, in the DVD-R standard, in the next recording power regulation process, a description in the RMA is searched by referring to the description in the RMA, and the search is performed. It has been standardized that the recording power correction process is executed using the unused sectors.

  However, it is standardized that there are 400 areas in which the regulation history can be described in the RMA, and the description of the regulation history is determined at any timing (for example, DVD-R ejection after recording is completed). If it is not standardized, etc., it may not be described correctly, or the area after the description of the correction history may not be searched correctly. However, it is impossible to identify which sector in the PCA is used, and as a result, there is a problem in that the above-described correction processing may be performed using the used sector.

Therefore, in order to cope with this problem, conventionally, as disclosed in, for example, Patent Document 1 below, detection corresponding to a setting signal actually recorded by scanning the inside of the PCA using a light beam. A method of detecting a reproduction signal and searching for a used sector from the level has been adopted.
JP-A-11-175777

  However, according to the above-described conventional used sector search method, for the sector in which the setting signal is recorded with extremely weak recording power (close to zero level), the detection / reproduction signal is detected by the search method. Since the setting signal is not recorded with sufficient recording power, even if it is a used sector, it is recognized that it is unused, and as a result, the recording power is adjusted using the used sector as in the conventional case. There is a problem in that the corrective processing may not be executed accurately due to being performed.

  Therefore, the present application has been made in view of the above problems, and an example of the problem is to search for an unused sector accurately in the PCA and accurately perform a recording power regulation process using this. Thus, an information recording apparatus and an information recording method capable of recording information are provided.

  In order to solve the above-described problem, the invention described in claim 1 is used when optical information is recorded on a recording medium using any one of a plurality of setting areas provided in advance on the recording medium. In the information recording apparatus for setting the recording parameters to be recorded and recording the information on the recording medium, it is confirmed whether or not a specific detection signal that is a preset detection signal is optically detected from any of the above Based on a confirmation result in the confirmation unit, a confirmation unit that retrieves an unused setting area that is one of the setting areas in which the specific detection signal is not detected, and the searched unused area Mark signal recording means for optically recording a mark signal for optically obtaining the specific detection signal in the set area, and at least the unused area excluding the area where the mark signal is recorded A setting signal recording means for recording a setting signal for setting the recording parameter in the setting area, and a setting means for optically detecting the recorded setting signal and setting the recording parameter, The mark signal recording means repeats recording the mark signal every predetermined period during recording of the setting signal, and the mark signal recording means outputs the mark signal only for a preset period. Configured to record.

  In order to solve the above-described problem, the invention described in claim 8 is used when optical information is recorded on a recording medium using any one of a plurality of setting areas provided in advance on the recording medium. In the information recording method of setting the recording parameter to be recorded and recording the information on the recording medium, it is confirmed whether or not a specific detection signal that is a preset detection signal is optically detected from any of the above A search step for searching for an unused setting region that is one of the setting regions in which the specific detection signal is not detected based on a confirmation result in the confirmation step, and the searched unused A mark signal recording step for optically recording a mark signal for optically obtaining the specific detection signal in the set area, and at least the unused area excluding the area where the mark signal is recorded A setting signal recording step for recording a setting signal for setting the recording parameter in the setting area, and a setting step for optically detecting the recorded setting signal and setting the recording parameter, In the mark signal recording step, the mark signal is repeatedly recorded for each predetermined period during recording of the setting signal, and in the mark signal recording step, the mark is recorded only for a preset period. It is configured to record a signal.

  Next, an embodiment suitable for the present application will be described with reference to the drawings.

  In the embodiment described below, in the information recording apparatus that records information on the above-described DVD-R as a recording medium, the recording power setting process that is performed before the actual information recording process is performed. This is an embodiment when the present application is applied.

  First, a schematic configuration and operation of the information recording apparatus according to the embodiment will be described with reference to FIGS. 1 and 2.

  FIG. 1 is a block diagram illustrating a schematic configuration of the information recording apparatus according to the embodiment, and FIG. 2 is a schematic diagram illustrating a detailed structure of the DVD-R 1.

  As shown in FIG. 1, the information recording apparatus R according to the embodiment includes a search unit, a setting signal recording unit, a detection unit, an execution unit, and a pickup signal 2 as a landmark signal recording unit, an RF (Radio Frequency) detection unit 3, and the like. A control unit 4 as a confirmation unit, a position retrieval unit, a first movement unit, a second movement unit and a setting unit, a timing generator 5, a recording power setting unit 6, and a recording pattern generation unit 7; A recording waveform generation unit 8, a drive unit 9, a laser driver 10, a preformat detection unit 11, a level detection unit 24 including a capacitor 21, a peak detection unit 22 and a bottom detection unit 23, an adder 25, It is comprised by.

  Next, the operation of each component will be described.

  First, the operation in general information recording processing will be described.

  First, on the DVD-R1, address information indicating a recording position of information on the DVD-R1, a synchronization signal, and the like are recorded in advance (in the manufacturing stage) by forming so-called prepits.

  When recording information on the DVD-R 1, first, the pickup 2 should irradiate the pre-pit with the information recording light beam B immediately before actual information recording, and record it from the outside. Address information indicating the recording position of the recording information and a synchronization signal for generating a recording clock used as a reference clock in the recording process are detected by, for example, a so-called push-pull method, and a push-pull signal Spp including these is generated. And output to the preformat detector 11.

  As a result, the preformat detection unit 11 separates the synchronization signal Ssyc and the address information Sadr from the push-pull signal Spp, outputs the synchronization signal Ssyc to the timing generation unit 5, and outputs the address information Sadr to the control unit. 4 is output.

  Then, the timing generation unit 5 generates the recording clock signal Stm based on the synchronization signal Ssyc, and outputs the recording clock signal Stm to the recording power setting unit 6 and the recording pattern generation unit 7.

  On the other hand, the recording information Sr input from the outside is input to the control unit 4.

  Then, the control unit 4 adds an error correction code to the input recording information Sr and performs a modulation process, and also records the input recording information Sr on the DVD-R1 to be recorded based on the address information Sadr. The recording position is recognized, and the processed recording information Sr is output to the recording waveform generator 8 through the adder 25 as the recording signal Srr at a timing corresponding to the recording position.

  On the other hand, the recording pattern generator 7 has a recording pattern signal having a random pulse width of 3T to 11T using the recording clock signal Stm as a reference clock based on a control signal Sct from the control unit 4 during a regulation process described later. Spt is generated and output to the recording waveform generation unit 8 via the adder 25.

  Then, the recording waveform generation unit 8 adjusts the shape of the recording pit formed on the recording track on the DVD-R 1 corresponding to the waveform of the recording pattern signal Spt with respect to the recording signal Srr or the recording pattern signal Spt. Waveform shaping processing (so-called strategy processing) for optimization is performed, and a shaping pattern signal Ssr is generated and output to the drive unit 9.

  On the other hand, the recording power setting unit 6 generates a power signal Spc indicating a recording power set by a recording power setting process (to be described later) executed before information recording based on the control signal Scp from the control unit 4 and is driven. To the unit 9.

  Then, the drive unit 9 generates a drive signal Sdd for irradiating the recording light beam B with the recording power indicated by the power signal Spc and outputs it to the driver 10.

  As a result, the driver 10 is driven by a semiconductor laser (not shown) in the pickup 2 and is intensity-modulated in response to the waveform change indicated by the shaping pattern signal Ssr with reference to the recording power indicated by the power signal Spc. A drive signal Sd for emitting the recording light beam B is generated and output to the semiconductor laser in the pickup 2.

  Then, when the semiconductor laser is driven by the drive signal Sd, the recording light beam B corresponding to the original recording information Sr is irradiated onto the DVD-R1, whereby the recording pit corresponding to the recording information Sr is recorded on the DVD. By forming the recording track on -R1, a series of recording processing of the recording information Sr is completed.

  Next, a description will be given of a recording power regulation process according to the embodiment executed prior to the above-described recording process.

  As described above, the regulation processing according to the embodiment is executed using PCA and RMA formed further inside the lead-in area in the DVD-R1.

  Here, a detailed structure of the DVD-R1 including the PCA and RMA will be described with reference to FIG.

  As shown in FIG. 2A, the DVD-R1 according to the embodiment has a clamp for mounting and fixing the DVD-R1 on the rotation shaft of a spindle motor (not shown) in the information recording apparatus R from the inner peripheral side. Hole CH, non-recording area 16 where no information is recorded on the inner circumference side, PCA 18, RMA 12, information area DA where actual recording processing is performed, and termination area 17 where information is not recorded on the outer circumference side , Is configured.

  Further, the information area DA includes a lead-in area 13 in which start information to be read out when reproducing recorded information recorded in the data area 14 described later, and the data area in which the recorded information is recorded. 14 and a lead-out area 15 in which end information and the like to be read when the reproduction of the recorded information recorded in the data area 14 is finished are recorded. At this time, the lead-in area 13 is an area in which the start information and the like are recorded prior to recording information in the data area 14, while the lead-out area 15 is after recording for the entire DVD-R1 is accommodated. This is an area where the end information and the like are recorded for the first time (that is, when recording of recording information on the entire DVD-R1 is completed).

  Next, the PCA 18 is divided into N sectors (N is 7000, for example), and the recording power of the recording light beam B is corrected by using one or more of the sectors 20. Is done.

In addition, it is standardized that each sector 20 is sequentially used from the sector 20 _-1 on the outer peripheral side of the DVD-R ₁ .

That is, for example taking as an example the case of executing a single regulating process using only one sector 20, while sequentially increasing the recording power on the outer peripheral side from the inner peripheral side of the sector 20 _-1 (Fig. (Refer to the two-dot line) By recording the setting signal, one calibration process is executed. In the next calibration, the recording power is sequentially increased from the inner circumference side to the outer circumference side for sector _20-2 . (See the dotted line in FIG. 2) While recording the setting signal, the next regulation is executed.

  On the other hand, the RMA 12 has a set recording area 400 in which the optimum recording power value set by the above-described correction processing at the preset timing and the number of the sector 20 in the PCA 18 used for the previous correction processing are sequentially written. It is configured with individual pieces.

  Next, returning to FIG. 1, in the above-described regulation process using the PCA 18 and the RMA 12, for example, a case where the calibration process is executed once using only the one sector 20 described above will be described first. The control unit 4 outputs the control signal Sct to the recording pattern generation unit 7 so that the recording pattern signal Spt having the random pulse width of 3T to 11T described above is generated.

On the other hand, the control unit 4, controls the recording power setting section 6 so as to record while sequentially increasing the recording power on the outer peripheral side from the inner peripheral side of the sector 20 _-1 (see Figure 2 dotted lines) setting signal Therefore, the control signal Scp is output.

  Accordingly, the recording power setting unit 6 outputs the power signal Spc so that the recording power increases sequentially.

Then, the drive unit 9 and the driver 10 sequentially record the setting signal in the sector 20 _-1 while sequentially increasing the recording power based on the power signal Spc. As a result of this processing, a setting signal in which the reproduction intensity sequentially changes on the staircase is recorded in the sector _20-1 .

  Next, the level detection unit 24 detects the peak level and the bottom level of the detection signal Srf obtained by reproducing the setting signal recorded in a staircase pattern using the pickup 2.

  At this time, the level detection unit 24 removes the DC component of the detection signal Srf by the capacitor 21 and detects the peak level and the bottom level of the capacitor signal Scd that is the output by the peak detection unit 22 and the bottom detection unit 23, respectively. The peak level signal Spl and the bottom level signal Sbl are output to the control unit 4.

  Thereby, the control unit 4 records the setting signal in which the peak level and the bottom level for each detection signal Srf corresponding to the pulse width of 3T to 11T coincide with each other based on the peak level signal Spl and the bottom level signal Sbl. The recording power is set as the optimum recording power at that time in a memory (not shown) or the like and used for the subsequent recording processing of the actual recording information Sr.

  Next, the regulation processing according to the embodiment that is mainly executed centering on the control unit 4 will be specifically described with reference to FIGS. 3 to 5.

  3 and 4 are flowcharts showing the regulation processing, and FIG. 5 is a diagram showing various waveform diagrams corresponding to the regulation processing.

  Further, in the regulation process described below, one regulation process is executed using 64 sectors 20, and in one sector 20, the setting signal is recorded with the same recording power and every 32 sectors. It is assumed that a mark signal to be described later is recorded. Furthermore, in FIG. 5, the level of the detection signal Srf is higher in the downward direction.

  As shown in FIG. 3, in the correction process (recording power setting process) of the embodiment, first, each initial setting is executed (step S1).

  Here, more specifically, the initial setting process in step S1 includes, as the initial setting process, a counter value indicating an interval when a plurality of landmark signals described later are recorded (every time the recording power is increased by one step). The parameter X, which is incremented by one, is initialized (that is, the parameter X ← 0), and the recording power change step number M is set to the parameter Y indicating the change frequency of the recording power when the setting signal is recorded. (In the case of the embodiment, M = 64) is set, and the initial value of the recording power (specifically, specified by the DVD-R format when recording the setting signal other than the mark signal). (Minimum value).

  When the initial setting is completed, the PCA 18 next searches the position on the top DVD-R1 of the sector 20 used for the restriction processing executed so far (that is, the top position of the used area) ( Step S2). This search process will be described in detail later with reference to FIG.

  When the head position of the used area is searched, the irradiation position of the light beam B is moved from the head position to the inner periphery side by 64 sectors, and the top DVD- of the sector 20 used for the current setting process is moved. The position on R1 (that is, the start position of the unused area) is searched (step S3). More specifically, in the search process in step S3, the start position of the sector 20 used for the current setting process is searched using the number (address information) of each sector 20 recorded in advance by the prepit as a clue.

  In addition, the movement of the irradiation position of the light beam B accompanying the search is executed by operating a tracking servo mechanism (not shown) based on the control of the control unit 4.

  When the head position of the unused area is searched, it is next checked whether or not the value of the parameter X is currently “0” (step S4).

  Since the parameter X is “0” immediately after the unused area is searched (step S4; YES), the recording power when the setting signal is recorded last is stored in a memory (not shown) in the control unit 4. Is set to “32” (indicating that a mark signal is recorded every 32 sectors), and the mark signal is output with the maximum recording power possible in the information recording apparatus R. Recording is performed for a predetermined period in the sector 20 (step S5). By the processing in step S5, the first mark signal is recorded at the head position of the unused area.

  Next, both the parameters X and Y are decremented one by one (step S7), and further, it is confirmed whether or not the parameter Y has become “0”, that is, whether or not one regulation process has been completed (step S7). S8).

  At this time, since the one-time regulation process has not been completed yet (step S8; NO), the process waits for the recording time of one sector to elapse (step S9) and returns to step S4 again.

  At this time, since the value of the parameter X is not “0” in the current step S4 (step S4; NO), the recording power of the setting signal is increased by one step from the initial value set in step S1. A setting signal is recorded (step S6), and the process proceeds to step S7 again. Thereafter, each parameter is decremented one by one (step S7), and the above-described series of processing is repeated.

  By repeating the processes of steps S1 to S9 described above, as a result, two mark signals (64 sectors in the normalization process of the embodiment) are displayed at the start position of the unused area and at a position 32 sectors away from the start position. Since there is only one mark signal recorded during the one set process, only one mark signal is recorded during the one set process, and during the mark signal and at the end of the unused area. In the period up to the position, the setting signal is recorded while the recording power is increased by one step up to the maximum value for each sector.

  When the recording of the setting signals for 64 sectors is completed (step S8; YES), the recorded area is then processed by the same processing as step S2 described above (the mark signal and the setting signal are processed by the processing of steps S1 to S9). The head position of the recorded area within the PCA 18) is searched (step S10), and the setting signal and the mark signal for 64 sectors are detected and reproduced from the head position to generate the detection signal Srf (step S11). Further, the level is acquired by the RF detection unit 3 (step S12), and the level signal Sp is generated and output to the control unit 4.

  At this time, as the waveform of the detected signal Srf detected, as shown in FIG. 5, the start position of the recorded area formed by the processing of the above steps S1 to S9 and the outer peripheral side by 32 sectors from the start position. The specific detection signal SP having the maximum level corresponding to the mark signal is detected from a position far from the position of the mark signal. Further, from the region between them, each setting signal increases in four steps toward the outer periphery side for each sector. A detection signal Srf having a corresponding reproduction level is detected. Among the specific detection signal SP and the detection signal Srf, when the detection signal Srf having a level equal to or higher than the preset optimum level is input, the level signal Sp (“lower” in FIG. 5) that becomes “HIGH” level. Reference) is output to the control unit 4.

  Based on the peak level signal Spl and the bottom level signal Sbl output from the level detection unit 24, a setting signal in which the peak level and the bottom level for each detection signal Srf corresponding to each pulse width of 3T to 11T coincide is recorded. The recording power at that time (see timing T above) is set as the optimum recording power at that time in a memory (not shown) in the control unit 4 (step S13), and used for the subsequent recording processing of the actual recording information Sr. .

  3 is completed, the sector number used as the recorded area and the set recording power are recorded in the corresponding set recording area in the RMA 12.

  Next, the search processing in steps S2 and S10 will be described in detail with reference to FIG.

  In the search process, as shown in FIG. 4, first, the set recording area where the used (recorded) sector number and the set recording power were recorded in the previous regulation process is searched and used (recorded). A sector number (address of the start position of the used area) is acquired (step S20), and then the irradiation position of the light beam B is moved to the start position (step S21).

  And it is confirmed whether the detection signal Srf which has a certain level is detected, moving the said irradiation position from the head position to the outer peripheral side (step S22).

  Next, from the position where the detection signal Srf is first detected, the irradiation position is track-jumped by two tracks on the inner peripheral side so as to exceed 64 sectors by using the address information recorded by the prepit as a clue (step S23). ) Search / confirm whether or not the detection signal Srf is detected while moving the irradiation position from the position after the track jump to the outer peripheral side again (step S24).

  When a detection signal Srf having some level is detected (step S24; YES), the current irradiation position is assumed to be in the used (recorded) area, and the address of that position is acquired next ( Step S25) Returning to step S23, the above-described track jump processing and the like are repeated.

  On the other hand, if no detection signal Srf is detected in the determination in step S24 (step S24; NO), then it is confirmed whether the search / confirmation has been completed up to the irradiation position before the track jump (step S23). (Step S26) If the search / confirmation has not been completed up to the irradiation position before the track jump (Step S26; NO), the process returns to Step S24 again to continue the search / confirmation, while searching to the irradiation position before the track jump. When the confirmation has been completed (step S26; YES), the position corresponding to the address acquired last (step S25) is recognized as the start position of the used (recorded) area (step S27) and step S3 above. Alternatively, the process proceeds to S11.

  As described above, according to the regulation processing in the information recording apparatus R described above, an unused area is searched using the specific detection signal SP as a clue, and a mark signal and a setting signal are recorded, and the recorded setting signal is used. Since the recording power is set, the unused area can be searched accurately and the recording power can be set accurately using this.

  Therefore, information recording can be performed accurately and reliably using the recording parameters set accurately.

  Further, since the mark signal is recorded at a position detected before the setting signal, the unused area can be reliably detected by accurately detecting the position detected first in the PCA 18.

  Further, since the mark signal is recorded every 32 sectors during the setting signal recording, it is possible to prevent erroneous detection of unused areas due to the fact that the specific detection signal SP is not detected for a long time.

  Furthermore, the specific detection signal SP is generated by repeating the movement of the irradiation position of the light beam B from the start position of the used (recorded) area indicated by the RMA 12 to the position where the detection signal Srf is detected and the update of the start position. Since the used (recorded) area is detected based on this, the unused area can be reliably detected.

  Furthermore, since the information recording is performed using the set recording power, the information recording can be performed accurately and reliably using the accurately set recording power.

  In the above-described embodiment, the case where the correction processing is performed once by 64 sectors has been described. However, in addition to this, even when the correction processing is executed once by using only one sector 20, If a mark signal is recorded at the head, the same effect as in the present application can be obtained.

  Further, in the above-described embodiment, the case where the present application is applied to the recording power regulation processing for the DVD-R 1 has been described. However, recording on a CD-R (CD-Recordable) that is currently being generalized is also performed. The present application can also be applied to the power regulation process.

  Further, a program corresponding to the flowcharts shown in FIGS. 3 and 4 is recorded on a flexible disk or hard disk as an information recording medium, and is read and executed by a general microcomputer or the like, whereby the microcomputer is It can also be used as the control unit 4 of the embodiment.

1 is a block diagram showing a schematic configuration of an information recording apparatus according to an embodiment. It is a schematic diagram which shows the detailed structure of DVD-R of embodiment. It is a flowchart (I) which shows the recording power setting process of embodiment. It is a flowchart (II) which shows the recording power setting process of embodiment. It is a figure which shows each waveform diagram etc. corresponding to the recording power setting process of embodiment.

Explanation of symbols

1 DVD-R
2 pickup 3 RF detection unit 4 control unit 5 timing generation unit 6 recording power setting unit 7 recording pattern generation unit 8 recording waveform generation unit 9 drive unit 10 driver 11 preformat detection unit 12 RMA
13 Lead-in area 14 Data area 15 Lead-out area 16 Non-recording area 17 End area 18 PCA
20 _-1 , 20 _-2 , 20 _-3 , _{20- (n-1)} , 20 _-n sector 21 capacitor 22 peak detector 23 bottom detector 24 level detector DA information area CH center hole SP specific detection signal R information Recording device B Light beam Spp Push-pull signal Ssyc Synchronization signal Sadr Address information Stm Recording clock signal Sr Recording information Srr Recording signal Sp Recording pattern signal Ssr Shaping pattern signal Scp, Sct Control signal Spc Power signal Sdd, Sd Drive signal Scd Capacitor signal Spl Peak level signal Sbl Bottom level signal Srf detection signal Sp level signal

Claims (14)

Information recording for recording the information on the recording medium by setting recording parameters used in optical information recording on the recording medium using any of a plurality of setting areas provided in advance on the recording medium In the device
Confirming means for confirming whether or not a specific detection signal that is a preset detection signal is optically detected from any of the above,
Search means for searching for an unused setting area that is one of the setting areas in which the specific detection signal is not detected, based on a confirmation result in the confirmation means,
Mark signal recording means for optically recording a mark signal for optically obtaining the specific detection signal in the searched unused setting area;
At least setting signal recording means for recording a setting signal for setting the recording parameter in the unused setting area excluding the area where the mark signal is recorded;
Setting means for optically detecting the recorded setting signal and setting the recording parameter;
With
The mark signal recording means repeatedly records the mark signal for each predetermined period during recording of the setting signal,
Further, the mark signal recording means records the mark signal for a preset period. The information recording apparatus according to claim 1,
The mark signal recording means records the mark signal using a light beam having the maximum recording power as the mark signal recording means. The information recording apparatus according to claim 1 or 2,
The information recording apparatus according to claim 1, wherein the mark signal recording unit records the mark signal at a position detected before the recorded setting signal in the unused setting area. The information recording apparatus according to claim 1 or 2,
The confirmation means includes
Position search means for searching for a predicted position that is a position on the recording medium of the setting area where the specific detection signal is predicted to be optically detected;
Detecting means for detecting the specific detection signal;
A first means for detecting the setting signal and the specific detection signal is moved to a search start position that is a position on the recording medium that is at least a distance corresponding to the predetermined period from the searched predicted position. Transportation means;
When the specific detection signal is detected while moving the execution means from the search start position to the predicted position, the position corresponds to at least the predetermined period from the position on the recording medium where the specific detection signal is detected. The execution means is moved again to a position on the recording medium separated by a distance, and the execution means is moved to the predicted position using the position of the execution means after the movement as the search start position. Second moving means for repeatedly checking whether or not is detected;
And is composed of
When the specific detection signal is not detected while the execution means is moved from the search start position to the predicted position, the search means is associated with the setting area in which the specific detection signal detected last was recorded. An information recording apparatus characterized in that the adjacent setting area is the unused setting area. In the information recording device according to any one of claims 1 to 4,
The information recording apparatus, wherein the recording parameter is an intensity of a light beam used in the information recording. In the information recording device according to any one of claims 1 to 5,
The information recording apparatus, wherein the mark signal recording means records the mark signal for each sector constituting the information for each preset number of the sectors. The information recording apparatus according to claim 6,
The information recording apparatus according to claim 1, wherein the number is 32. Information recording for recording the information on the recording medium by setting recording parameters used in optical information recording on the recording medium using any of a plurality of setting areas provided in advance on the recording medium In the method
A confirmation step for confirming whether or not a specific detection signal that is a preset detection signal is optically detected from any of the above,
Based on the confirmation result in the confirmation step, a search step of searching for an unused setting region that is one of the setting regions in which the specific detection signal is not detected,
A mark signal recording step for optically recording a mark signal for optically obtaining the specific detection signal in the searched unused setting area;
At least a setting signal recording step for recording a setting signal for setting the recording parameter in the unused setting area excluding the area where the mark signal is recorded;
A setting step for optically detecting the recorded setting signal and setting the recording parameter;
With
In the mark signal recording step, repeating the recording of the mark signal every predetermined time period during recording of the setting signal,
Further, in the mark signal recording step, the mark signal is recorded for a preset period. In the information recording method of Claim 8,
In the mark signal recording step, the mark signal is recorded using a light beam having a maximum recording power usable in the mark signal recording step. In the information recording method of Claim 8 or 9,
In the mark signal recording step, the mark signal is recorded at a position detected before the recorded setting signal in the unused setting area. In the information recording method of Claim 8 or 9,
The confirmation step includes
A position search step of searching for a predicted position that is a position on the recording medium of the setting area where the specific detection signal is predicted to be detected optically;
A detection step of detecting the specific detection signal;
A first means for detecting the setting signal and the specific detection signal is moved to a search start position that is a position on the recording medium that is at least a distance corresponding to the predetermined period from the searched predicted position. Moving process;
When the specific detection signal is detected while moving the execution means from the search start position to the predicted position, the position corresponds to at least the predetermined period from the position on the recording medium where the specific detection signal is detected. The execution means is moved again to a position on the recording medium separated by a distance, and the execution means is moved to the predicted position using the position of the execution means after the movement as the search start position. A second moving step that repeats checking whether or not is detected;
And is composed of
In the search step, when the specific detection signal is not detected while the execution means is moved from the search start position to the predicted position, the specific detection signal detected last is recorded in the setting area. An information recording method, wherein the adjacent setting areas are set as the unused setting areas. In the information recording method as described in any one of Claims 8-11,
The information recording method according to claim 1, wherein the recording parameter is an intensity of a light beam used in the information recording. In the information recording method as described in any one of Claims 8-12,
In the mark signal recording step, the mark signal is recorded for each sector constituting the information for each preset number of sectors. The information recording method according to claim 13,
The information recording method according to claim 1, wherein the number is 32.

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