JP2003051118A - Optical recording medium, recorder and recording method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form the visible visual sensation image on an optical recording medium. SOLUTION: A laser beam emitting part 10 for irradiating an optical recording medium 25 with the laser beam and a visual sensation image conversion part 24 for converting the visual sensation image are furnished for realizing this subject in such a manner that the visual sensation image converted by the visual sensation image conversion part 24 is supplied to the laser beam emitting part 10, and the visual sensation image having the visible size is formed with a plurality of recording marks on the optional position or the specified position of the optical recording medium 25 by the laser beam emitting part 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical recording medium on which data is recorded and a recording apparatus and a recording method for recording data on the optical recording medium. More specifically, the present invention relates to an optical recording medium of a size visible by a plurality of recording marks. The present invention relates to an optical recording medium for forming a visual image, and a recording device and a recording method for recording a plurality of recording marks on the optical recording medium by irradiating a laser beam to form a visual image of a visible size.

[0002]

2. Description of the Related Art In recent years, CD-R (CD-Recordable) and D, which are media capable of recording data, have been used.
VD-R (Digital Versatile Dis)
k-Recordable), DVD + R, and rewritable medium CD-RW (CD-Rewritable)
e), DVD-RW, and DVD + RW have appeared. CD-
R, DVD-R, and DVD + R are optical disks in which the recording layer is made of an organic photoreactive dye film, and the recording layer is irradiated with high-power laser light to record data. With CD-R, DVD-R, and DVD + R, new data can be added after recording data, but since it is a non-rewritable write-once method, physical data tracks can be recorded in multiple sessions. Data recording is performed by so-called multi-session additional recording which is divided. On the other hand, CD-RW and D
In VD-RW and DVD + RW, for example, the recording layer is Ag-
The optical disc is made of an In-Sb-Te phase change inorganic material, and data is recorded by irradiating the recording layer with a high-power laser beam. CD-RW and DVD-RW,
In DVD + RW, data is recorded and erased by a reversible phase change reaction which is a physical transfer between crystalline and amorphous.

CD-R, CD-RW, DVD-R or D
Currently, VD-RW, DVD + R, DVD + RW, etc.
There is a single-sided recording disc having a recording layer on one side. One side of the single-sided recording disc is a label side on which content information and the like can be written. As a method of recording the content information and the like on the label surface, there are a method of writing with a pen and a method of sticking with a sticker. Also,
Recently, there is a single-sided recording disk having a printable coat on the label side, and there is a method of printing content information or the like on the label side by a printer.

In addition, CD-R, CD-RW, DVD-R
Alternatively, with respect to DVD-RW, DVD + R, DVD + RW, etc., double-sided recording disks having recording layers on both sides are expected to appear in the future.

[0005]

By the way, in the method of writing content information or the like on the label surface with a hard pen at the writing tip, there is a possibility that the recording layer or the reflection layer may be damaged by the writing pressure generated during writing. In addition, in the method of writing the content information or the like on the label surface with a soft pen tip, the content information or the like may be erased by rubbing.

In addition, in the method of sticking the content information and the like on the label surface by the sticker, the weight of the sticker may cause an eccentric center of gravity on the disc.
In particular, errors may occur when reading data from a disc at high speed or recording data on the disc at high speed.

Further, in the method of printing the content information and the like on the label surface coated with the printable coat by the printer, the printed surface is exposed, and thus scratches or
There is a possibility that the printed content information or the like will be erased due to dust or rubbing.

On the other hand, when a double-sided recording disk having recording layers on both sides has appeared, it is necessary to record the content information and the like on a place other than the recording surface. However, the area other than the recording surface is narrow, only limited information can be recorded, and the visibility may deteriorate.

Therefore, the present invention has been proposed in view of the above situation, and an optical recording medium for forming a visual image of a visible size by a plurality of recording marks and a laser for the optical recording medium. It is an object of the present invention to provide a recording apparatus and a recording method for recording a recording mark by irradiating light and forming a visual image of content information or the like having a visible size by a plurality of recording marks.

[0010]

In order to solve the above-mentioned problems, an optical recording medium according to the present invention has a recording layer on which a recording mark is formed by irradiation with laser light, which is laminated on a substrate. A visual image of a visible size is formed by a plurality of recording marks at an arbitrary position or a predetermined position on the recording layer.

In order to solve the above-mentioned problems, the optical recording medium according to the present invention has a heat-sensitive layer that is responsive to laser light laminated on a substrate, and the heat-sensitive layer is visible by irradiation with laser light. Shows reaction.

In order to solve the above-mentioned problems, the optical recording medium according to the present invention has a recording layer on which a recording mark is formed by irradiation of laser light, which is laminated on the substrate. A data recording area and a visible visual image recording area are formed.

In order to solve the above problems, the recording apparatus according to the present invention includes a laser light irradiating means for irradiating an optical recording medium with laser light and a visual image data converting means for converting arbitrary data into visual image data. The visual image data converted by the visual image data converting means is supplied to the laser light irradiating means, and the laser light irradiating means has a size visually recognizable at an arbitrary location or a predetermined location of the optical recording medium. The visual image of is formed by a plurality of recording marks.

In order to solve the above-mentioned problems, the recording method according to the present invention generates visual image data from arbitrary data, and emits a laser beam corresponding to the visual image data at an arbitrary position or a predetermined position on an optical recording medium. Then, a visual image of a visible size is formed by a plurality of recording marks.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

The present invention is applied to a data recording / reproducing apparatus 1 as shown in FIG. 1, for example.

The data recording / reproducing apparatus 1 has an OP (Opti)
cal pickup) unit 10, RF IC 11, system control unit 12, spindle driver 13, sled driver 14, focus driver 15, tracking driver 16, spindle motor 17, sled motor 18, CPU (Central). Pro
processing unit) 19 and flash ROM
20, an RAM 21, an interface 22, and a visual image generation unit 24. The optical disk 25 records, reproduces, and erases data, and an external device 23 is connected via the interface 22.

Further, the system control unit 12 and the CPU 19
The flash ROM 20, the RAM 21, the interface 22, and the visual image generation unit 24 mutually transmit and / or receive signals via the bus A that is the main bus.

The OP unit 10 is connected to the RF IC 11, the system control unit 12, the focus driver 15, and the tracking driver 16. The OP unit 10 is
It is provided with an objective lens, a laser diode, a laser diode driver (LD Driver), a photodetector, a half mirror, etc., and supplies an optical signal detected by the photodetector to the RF IC 11. Also, O
When recording data on the optical disc 25, the P unit 10 receives a laser blinking / driving signal necessary for forming a recording mark, a write strategy signal indicating the laser light intensity and the optimum value of blinking, and the like from the system control unit 12 and RF. Supplied by IC11. Further, the OP unit 10 includes a focus driver 15
And the tracking driver 16.

The RF IC 11 is connected to the system controller 12. The RF IC 11 includes a beam signal detected from the OP unit 10, a side, and a main 8
The signals of the system are subjected to arithmetic processing such as sampling and holding, and a focus error (FE, Focus Error) signal and a tracking error (TE, Tracking Error) from a predetermined signal among the signals of the eight systems.
Signal, mirror (MIRR, Mirror) signal, ATI
P (Absolute Time In Pregroo
ve) signal and a signal such as a read main signal are generated. The RF IC 11 uses the FMDT among the generated signals.
(Frequency Modulation Dat
a) Signal, FMCK (Frequency Modul)
of the laser light intensity (OPC, Optimum P) detected by trial writing by supplying an ation clock signal, an FE signal and a TE signal to the system controller 12.
and a laser blinking / driving signal are supplied to the LDDriver of the OP unit 10.

The system controller 12 is connected to the spindle driver 13, the thread driver 14, the focus driver 15, and the tracking driver 16, and is controlled by the CPU 19. The system controller 12 receives the FMDT signal, the FMCK signal, the TE signal, and the FE signal from the RF IC 11, and is controlled by the CPU 19 to generate a servo control signal for controlling various servos. The system control unit 12 generates an analog signal from the generated servo control signal and supplies the analog signal to the spindle driver 13, the sled driver 14, the focus driver 15, and the tracking driver 16.

Further, the system control unit 12 uses the CIRC
(Cross Interleaved Reed-So
Lomon Code) Decoding and encoding, write strategy, and ADDr decoding are performed. When recording data on the optical disc 25, the system control unit 12 supplies the OP unit 10 with a blinking / driving signal of the laser and a signal indicating the optimum value of the laser light intensity. Further, the system control unit 12 uses the visual image generation unit 2 via the bus A.
4 provides visual images. This visual image is formed on the optical disc 25 as a visible image by a plurality of recording marks.

The spindle driver 13 is connected to the spindle motor 17 and controls the rotation of the spindle motor 17 based on the signal supplied from the system control unit 12. The thread driver 14 is the thread motor 1
8 and controls the sled operation of the sled motor 18 based on a signal supplied from the system control unit 12. The focus driver 15 moves the OP unit 10 in the vertical direction with respect to the optical disc 25 based on a signal supplied from the system control unit 12, and controls the focal position of the beam. The tracking driver 16 swings the OP unit 10 based on the signal supplied from the system control unit 12 to control the position of the beam spot irradiated on the optical disc 25.

The spindle motor 17 drives the optical disc 25 based on the signal supplied from the spindle driver 13.
To rotate. The sled motor 18 performs the sled operation of the OP unit 10 based on the signal supplied from the sled driver 14.

The CPU 19 controls the system control unit 12 via the bus A. The flash ROM 20 stores a program for processing data recorded on the optical disc 25.

The RAM 21 is a volatile memory for storing management information of the optical disc 25.

The interface 22 is connected to an external device 23, for example, SCSI (Small Comput).
er System Interface), ATAPI
(AT Attachment Interfac
e), IEEE-1394, USB (Universa)
l Serial Bus), Blue Tooth, and other standards. Further, the interface 22 may be a connection unit corresponding to a semiconductor memory. The external device 23 is a device that supplies data such as a photograph, a picture, or characters to the data recording / reproducing apparatus 1 via the interface 22. The external device 23 is, for example, a photographing device such as a digital camera. Visual image generator 24
Converts the data input via the interface 22 into a predetermined data format.

The optical disc 25 is a CD-RW (CD Rewritable) capable of recording, reproducing and erasing data.
e) and a CD that allows data recording, reproduction and additional recording
A recording medium such as R (CD-Recordable). As shown in FIG. 2, the optical disc 25 has PCA
(Power Calibration Area), P
A MA (Program Memory Area), a lead-in information area, a program area, and a lead-out information area are sessionized into a data area. PCA
Is a region used for optimizing the laser light intensity by applying the laser light during OPC. The PMA is an area in which address information necessary for additionally recording data on the optical disc 25 is temporarily stored. The program area actually contains the data. Lead-in is the TOC which is the index information of the track after the finalization process.
This is an area in which (Table Of Contents) is stored. The lead-out information area is added to the end of the data. Therefore, the area after the lead-out information area is a data unrecorded area.

On an optical disk such as a CD-RW, data is continuously and spirally recorded from the inside to the outside of the disk. Such a recording method is called a sequential write method. DAO (Disc At Once) and TAO (Track
At Once) and packet lights. DAO is a recording method in which data for one disc is recorded all at once and additional recording of data is impossible later. TAO is a recording method in which data is recorded in track units and data can be additionally recorded later. The packet write is a recording method capable of recording data in a unit smaller than the TAO track and allowing additional recording of data later. TAO is maximum 9
Although it is possible to record up to 9 tracks, packet writing is a recording method that is easy to use and has no limit on the number of packets.

Usually, in the data recording / reproducing apparatus 1, recording marks are recorded by physically changing the recording surface of the optical disk 25 depending on the intensity of the laser beam, and the intensity of the laser beam is set to "0" and "1". Is recorded on the optical disc 25 as digital data. The reflectance is different between the place where the laser light intensity is high and the place where the laser light intensity is weak, and it can be visually confirmed. In the present invention, this difference in reflectance is used to form a visual image on the optical disc 25 that can be viewed with a plurality of recording marks. An example of forming a visible visual image on the optical disc 25 will be shown below.

An example of the operation of the visual image generation unit 24 when the external device 23 is a digital camera (hereinafter referred to as DSC) will be described below.

The DSC includes a photographing section, an image signal calculation processing section and the like. The photographing unit includes a lens unit that takes in a subject, a CCD, an S / H circuit unit, and an A / D converter. The CCD generates an image signal from the image of the subject supplied from the lens unit and supplies the generated image signal to the S / H circuit unit. The S / H circuit unit performs arithmetic processing such as sampling and holding on the image signal and supplies the image signal to the A / D converter. The A / D converter converts the image signal into a digital image signal and supplies the digital image signal to the image signal arithmetic processing section.
The image signal calculation processing unit performs image processing such as color standard conversion from RGB signals to color difference / luminance signals, white balance, gamma correction, and reduced image processing on the digital image signals supplied from the photographing unit. The processed digital image signal is supplied to the data recording / reproducing apparatus 1 via the interface 22 and temporarily stored in the RAM 21 or the like.

External device 2 via interface 22
The data temporarily stored in RAM 21 or the like from 3 is supplied to the visual image generation unit 24 and converted into a predetermined data format. The conversion operation of the visual image generation unit 24 will be described below with reference to FIGS. 3 and 4.

The visual image generation unit 24 converts the image data of a car, for example, into a data format of bitmap data as shown in FIG. Then, the visual image generation unit 24 generates a visual image of the data converted into the data format of the bitmap data based on the conversion table. The visual image generation unit 24 divides the bitmap data shown in FIG. 3 into 30 rows × 70 columns based on a conversion table having two types of conversion data of “1” and “0”, and divides the respective divided areas. In FIG. 4, the area where the data exists is set to "1", and the area where the data does not exist is set to "0", and the data is converted into data of "1" and "0" as shown in FIG.

An example of the operation of the visual image generator 24 when the external device 23 is a character input device will be described below.

The character input device inputs arbitrary characters as text data and supplies the text data to the data recording / reproducing apparatus 1 via the interface 22. The text data is temporarily stored in the RAM 21 or the like. Then, the data temporarily stored in the RAM 21 or the like is supplied to the visual image generation unit 24 and converted into a predetermined data format. The conversion operation of the visual image generation unit 24 will be described below with reference to FIGS. 5 and 6.

When the text input data "2001" is supplied from the character input device, the visual image generation unit 24 converts the text data into the bit map data format as shown in FIG. Then, the visual image generation unit 24 generates a visual image of the text data converted into the bit map data format based on the conversion table. The visual image generation unit 24 converts the bitmap data shown in FIG. 5 into 30 rows × 70 based on a conversion table having two kinds of conversion data of “1” and “0”.
The data is divided into columns, and in each of the divided areas, the area in which data exists is "1", the area in which no data exists is "0", and data of "1" and "0" as shown in FIG. Convert to.

The visual image generated by the visual image generating unit 24 described above is an example, and the optical disc 25 is used.
The content information, the number of times of reproduction, the number of times of recording, the remaining recording capacity, or the recording format may be used. further,
The serial number for tampering prevention may be recorded as a visual image on the optical disc 25 that allows only additional recording to protect the copyright.

The data format is not limited to the above-mentioned bitmap data format, but may be any other format as long as it can be converted into a visual image. The conversion table may have not only the above-mentioned two types of conversion data of “1” and “0” but also a plurality of types of conversion data as shown in FIG. 7. In this case, for example, "0" is red and "1" is
Corresponds to blue, "2" to green, and "3" to white.
The division of the bitmap data may be changed according to the size of the visual image recorded on the optical disc 25, instead of the 30 rows × 70 columns described above.

The visual image converted into “1” and “0” is the system control unit 1 of the data recording / reproducing apparatus 1.
As shown in FIG. 8, the data is converted into a data string to which a Sync mark for synchronizing with the rotation cycle signal of the optical disc 25 is arbitrarily added by 2. The data sequence shown in FIG. 8E includes a data sequence with the Sync mark 1 shown in FIG. 8A, a data sequence with the Sync mark 2 shown in FIG. 8B, and a data sequence shown in FIG. 8C shows a combined data string in which the data string to which the Sync mark 3 shown in FIG. 8C is added and the data string to which the Sync mark 4 shown in FIG. 8D is added are combined.

The combined data string to which the Sync mark is added in this way is converted into an output data string by the system control unit 12. When the combined data string is the combined data string a as shown in FIG. 9A, the output data string is shown in FIG. 9B.
The combined data string a as shown in FIG. 9 may be converted into the output data string a as it is output, or may be converted into the output data string b divided into arbitrary duty ratios as shown in FIG. 9C. However, the output data string b as shown in FIG. 9D may be converted into the output data string c which is modulated by the EFM modulation method, the 8-16 modulation method, the RLL method, or the like.

The OP unit 10 turns on the reproduction laser for the optical disk 25 when the data "0" is input, and the optical disk 2 when the data "1" is input.
The recording laser is turned on for 5. In this way, in the optical disc 25, the place where the data of “0” is input,
A visible image is formed due to the difference in reflectance from the place where the data of "1" is input.

The optical disc 25 includes an optical disc having a dedicated visual image recording layer on which a visible visual image is formed by a plurality of recording marks and an optical disc having no dedicated visual image recording layer. In the case of an optical disc having a visual image recording layer, is formed by a plurality of recording marks on the visual image recording layer,
In the case of an optical disc having no visual image recording layer, a plurality of recording marks are formed in the data unrecorded area of the data recording layer.

Also, the output data string b shown in FIG. 9C.
By combining the patterns of the Duty ratio of the local and the ones with a short cycle locally or by making the recorded and unrecorded tracks alternately or arbitrarily and changing the number of recording points per unit area, the optical disc 25 It is possible to add contrast such as lightness, darkness, lightness and / or stereoscopic effect to the visual data recorded in 1.

Here, the configuration of the system control unit 12 will be described. As shown in FIG. 10, the system control unit 12 includes a rotation cycle detection unit 100, a frequency division ratio setting unit 101,
Sync Timing generation unit 102 and synchronization circuit unit 1
03, a modulation method switching unit 104, a CIRC encoding / decoding On / Off control unit 105, an encoder-pattern generating unit 106, a selector unit 107, a write strategy unit 108, and a write / read LD 109.
It has and. The rotation cycle detection unit 100 synchronizes the signal supplied from the frequency division ratio setting unit 101 with the FG signal. The signal synchronized by the rotation cycle detector 100 is S
is supplied to the sync timing generation unit, and the Sync Ti
A signal with ming added is generated. Encoder
The pattern generation unit 106 converts the data sequence of the visual image supplied from the visual image generation unit 24 into the modulation method switching unit 104 and the CIRC encoding / decoding On · Of.
It is converted into an output data string described later by the f control unit 105. The synchronization circuit unit 103 generates a synchronization signal from the Sync Timing signal supplied from the Sync Timing generation unit 102 and the output data string signal supplied from the encoder-pattern generation unit 106. Synchronous circuit unit 1
03 supplies the generated synchronization signal to the write strategy unit 108 via the selector unit 107.

Next, the FG signal will be described below.
The spindle motor 17 generates an FG signal according to the operation of the motor when applying a driving force to the optical disc 25. This FG signal is the rotation speed information of the spindle motor 17, that is, the rotation speed information generated each time the optical disk 25 makes one rotation. Further, the rotation speed information is generated by a timing signal for phase switching when the spindle motor 17 is a three-phase motor, and an FG signal generating FG signal is provided on a turntable that supports the optical disk 25.
When the plate is provided, it is generated by rotating the FG plate. The FG signal usually indicates one revolution of the motor with 18 or 24 waves.

Now, a method of controlling the motor and controlling the laser light when recording the visual image on the optical disk 25 will be described.

As a first method, the ATIP signal and ADIP (Address In Pr) included in the optical disk 25 are used.
signal), or Sub-code Q-c
A CLV (Constant Linear V) of the optical disc 25 is generated based on address information such as a channel signal.
elocity) and CAV (Constantan An)
There is a method in which the rotation control such as the Gluular Velocity) is performed, the timing control of positioning when forming a visual image is performed, and the timing control of laser light recording and non-recording is performed.

As a second method, the spindle motor 17
The rotation control is performed by using the output of the FG signal of the Hall sensor provided in the data recording / reproducing apparatus 1 such as a turntable and a turntable, and the timing control of the positioning when forming a visual image is performed. There is a method of controlling the recording timing.

As a third method, the first method and the second method are combined to control the rotation of the optical disk, to control the timing of positioning when forming a visual image, and to record or not record the laser light. There is a method of controlling the recording timing.

As a fourth method, the rotation of the optical disc is controlled by using an output obtained from a bar code provided on the inner circumference of the optical disc 25 such as a Photo-CD or a signal equivalent thereto as a substitute for the FG signal. There is a method of controlling the timing of positioning when forming a visual image, and controlling the timing of recording and non-recording of laser light.

Next, an example of the operation in the case of forming the visual image converted into the data of 30 rows × 70 columns as described above in the data unrecorded area of the optical disc 25 by the data recording / reproducing apparatus 1 is shown in FIG. This will be described with reference to the flowchart shown.

In step ST1, the data recording / reproducing apparatus 1 confirms that the optical disc 25 is installed at a predetermined place.

In step ST2, the data recording / reproducing apparatus 1 confirms the recording state of the optical disc 25. The capacity of the optical disk 25 and the remaining amount of the data unrecorded area can be confirmed, and the T recorded in the PMA or the lead-in information area
Check the presence or absence of OC. The TOC recorded in the PMA is a provisional TOC, and when the optical disc 25 is subjected to finalization processing, the provisional TOC is recorded in the lead-in information area as a formal TOC.

Here, the finalizing process will be described. Data is UDF (Universal Disk)
The data on the optical disc recorded in the Format file format cannot be reproduced by a general personal computer (PC, Personal Computer). This is because the PC does not support the UDF file format. Therefore, in order to allow the PC to play the UDF file-formatted optical disk, it is necessary to convert the file format of the optical disk to a file format such as ISO 9660 supported by the PC. This conversion work is called finalization processing.

In step ST3, the data recording / reproducing apparatus 1 determines whether or not a visual image can be formed on the optical disc 25 based on the recognition work for the optical disc 25 in step ST2. For example, even if a visual image can be formed, since a large amount of data is recorded, the optical disc 25 having a small data unrecorded area where the visual image can be formed cannot form a visual image. The disc is determined to be possible.

The optical disc 25 having a large data unrecorded area on which a visual image can be formed is judged to be a disc on which a visual image can be formed.
Go to 4.

In step ST4, the data recording / reproducing apparatus 1 recognizes the disc type of the optical disc 25, and determines whether the disc type allows recording and erasing of data. As the disc type, a disc such as a CD-DA or a CD-ROM that can only reproduce data, a disc such as a CD-R that can only record additional data, or a disc that can record and erase data such as a CD-RW. There is a disc.

When it is recognized by the recognition work of step ST4 that the disc type of the optical disc 25 is the one in which only the data can be reproduced and the one in which the data can be additionally recorded, the process proceeds to step ST7 and the data can be recorded and erased. If it is recognized that it is not, step ST5
Proceed to.

In step ST5, the data recording / reproducing apparatus 1 selects whether to completely erase the data unrecorded area of the optical disc 25. When not completely erasing the data unrecorded area of the optical disc 25, the process proceeds to step ST7, and when completely erasing the data unrecorded region of the optical disc 25, the process proceeds to step ST6.

In step ST6, the data recording / reproducing apparatus 1 completely erases the data unrecorded area of the optical disc 25. If the visual image has been recorded in the data unrecorded area of the optical disc 25 by the erasing operation in step ST6, all the visual images are erased.

In step ST7, the data recording / reproducing apparatus 1 produces a recorded image based on the visual image produced by the visual image producing section 24. The recording image is an image for confirming a state when a visual image is recorded on the optical disc 25 before recording. The data recording / reproducing apparatus 1 connects a monitor (not shown) to the bus A, and confirms the recorded image by the monitor. Here, the generation of the recording image will be described below.

The state of the optical disc 25 is displayed on the monitor as shown in FIG. 12, based on the confirmation work of the recording state of the optical disc 25 in step ST2. In this embodiment, the data recorded area 200 and the data unrecorded area 201 are displayed, but other than the above may be displayed. The visual image generated by the visual image generation unit 24 is formed in the data unrecorded area 201. The data recording / reproducing apparatus 1 adjusts the size and shape of the visual image and the recording position of the visual image when recording on the optical disc 25 to create a recording image as shown in FIG. 13, for example.

In step ST8, the data recording / reproducing apparatus 1 sets recording conditions for forming a visual image on the optical disc 25. In step ST8, forming conditions such as a forming speed for forming a visual image on the optical disc 25 and the intensity of laser light are set.

In step ST9, the data recording / reproducing apparatus 1 forms a visual image on the optical disc 25 with a plurality of recording marks. At this time, the progress of the visual image forming work may be displayed on the monitor. Further, when a visual image is formed on the optical disk 25, trial writing of laser light is performed using PCA. When PCA is filled with data, trial writing of laser light is performed, for example, in a data unrecorded area. The outermost part is used.

In step ST10, the data recording / reproducing apparatus 1 selects whether to newly form a visual image on the optical disc 25. When a new visual image is formed on the optical disc 25, the process returns to step ST4.

In accordance with the procedure of steps ST1 to ST10 described above, the data recording / reproducing apparatus 1 forms a visible visual image in the data unrecorded area of the optical disc 25 with a plurality of recording marks. In step ST3, if data is recorded on the optical disk 25 by DAO, or if finalization is performed, and if the data unrecorded area is a certain area or more, the optical disk 25 is changed. Judge that the medium is capable of recording visual images. If the optical disc 25 is in such a state, the optical disc 25 cannot be additionally recorded in the format. Therefore, even if a visual image is formed in the data unrecorded area, there is no problem in compatibility.

The visual image formed in the data unrecorded area of the optical disc 25 may be directly supplied from the external device 23 to the system controller 12. In this case, step ST7 is skipped.

When a visual image is formed on the optical disc 25 in which all the data recording areas are unrecorded, the entire area of the PCA, which is the trial writing area of the laser light, is set to the recording state before the visual image is formed. Good. If the optical disc 25 is in such a state, the optical disc 25 cannot be additionally recorded in the format.
Therefore, even if a visual image is formed in the data unrecorded area, there is no problem in compatibility.

Further, the data recording / reproducing apparatus 1 may be able to recognize the recording state of the data unrecorded area of the optical disc 25. 14 and 15 are flowcharts showing an example of the operation of forming the data unrecorded area of the optical disc 25 by the data recording / reproducing apparatus 1 capable of recognizing the recording state of the data unrecorded area of the optical disc 25. It will be described with reference to FIG.

At step ST21, the data recording / reproducing apparatus 1 confirms that the optical disc 25 is installed at a predetermined place as shown in FIG.

In step ST22, the data recording / reproducing apparatus 1 confirms the recording state of the optical disc 25. The capacity of the optical disc 25 and the remaining amount of the data unrecorded area are confirmed, and the presence or absence of the TOC recorded in the PMA or the lead-in information area is confirmed. The TOC recorded in the PMA is a provisional TOC, and when the optical disc 25 is subjected to finalization processing, the provisional TOC is recorded in the lead-in information area as a formal TOC. The finalizing process is the same as the description in step ST2 described above.

It is also confirmed whether or not a visual image is formed in the data unrecorded area of the optical disc 25.

In step ST23, the data recording / reproducing apparatus 1 determines whether or not a visual image can be recorded on the optical disc 25, based on the recognition work for the optical disc 25 in step ST22. For example, even if a visual image can be formed, since a large amount of data is recorded, the optical disc 25 having a small data unrecorded area where a visual image can be formed is
It is judged that the disc cannot form a visual image.

The optical disc 25 having a large data unrecorded area on which a visual image can be formed is judged to be a disc on which a visual image can be formed.
Proceed to 24.

In step ST24, the data recording / reproducing apparatus 1 performs a disc type recognizing operation of the optical disc 25, and determines whether or not the disc type can record and erase data. As the disc type, a disc such as a CD-DA or a CD-ROM that can only reproduce data, a disc such as a CD-R that can only record additional data, or a disc that can record and erase data such as a CD-RW. There is a disc.

When it is recognized by the recognition work in step ST24 that the disc type of the optical disc 25 is the one in which only the data can be reproduced and the one in which the data can be additionally recorded, the process proceeds to step ST27, and the disc type can record and erase the data. If it is recognized as an unidentified one, step S
Proceed to T25.

In step ST25, the data recording / reproducing apparatus 1 selects whether to partially or completely erase the data unrecorded area of the optical disc 25. If partial erasing or total erasing of the data unrecorded area of the optical disc 25 is not performed, the process proceeds to step ST27, and if partial erasing or total erasing of the data unrecorded region of the optical disc 25 is performed, the process proceeds to step ST26.

In step ST26, the data recording / reproducing apparatus 1 partially or completely erases the data unrecorded area of the optical disc 25.

In step ST27, the data recording / reproducing apparatus 1 produces a recorded image based on the visual image produced by the visual image producing section 24. The recorded image is an image for confirming a state when a visual image is formed on the optical disc 25 before the visual image is formed. The data recording / reproducing apparatus 1 connects a monitor (not shown) to the bus A, and confirms the recorded image by the monitor. The generation of the recording image is the same as that described in step ST7 above.

In step ST28, the data recording / reproducing apparatus 1 determines whether or not the recording image generated in step ST27 overlaps the visual image formed in the data unrecorded area of the optical disc 25 up to the previous time. If the visual images do not overlap, step ST
When the visual images overlap, the process proceeds to step ST29.

In step ST29, the data recording / reproducing apparatus 1 determines whether or not the visual image is overwritten. When the visual image is not overwritten, the process returns to step ST27, the recording image is generated again, and when the visual image is overwritten, the process proceeds to step ST30.

In step ST30, the data recording / reproducing apparatus 1 sets the formation conditions for recording the visual image on the optical disc 25, as shown in FIG. In step ST30, forming conditions such as a forming speed for forming a visual image on the optical disc 25 and the intensity of laser light are set.

In step ST31, the data recording / reproducing apparatus 1 forms a visual image on the optical disc 25 with a plurality of recording marks. At this time, the progress of the visual image forming work may be displayed on the monitor. Further, when forming a visual image on the optical disc 25, PCA is used for trial writing of laser light. When PCA is filled with data, trial writing of laser light is performed, for example,
The outermost peripheral portion of the data unrecorded area is used.

In step ST32, the data recording / reproducing apparatus 1 selects whether to newly form a visual image on the optical disc 25. When a new visual image is formed on the optical disc 25, the process returns to step ST24, and when a new visual image is not formed on the optical disc 25, the process proceeds to step ST33.

In step ST33, the data recording / reproducing apparatus 1 selects whether to collate the visual image formed on the optical disc 25 in step ST31.
When the visual images are collated, the process proceeds to step ST34.

In step ST34, the data recording / reproducing apparatus 1 collates the visual image formed on the optical disc 25.

In step ST35, the data recording / reproducing apparatus 1 collates the visual image formed on the optical disc 25 in step ST34, and as a result, the optical disc 25
To determine if the visual image was correctly formed. When it is determined that the visual image is not correctly formed on the optical disc 25, the process proceeds to step ST36.

In step ST36, the data recording / reproducing apparatus 1 determines whether or not the disc type of the optical disc 25 for which the visual image has not been formed correctly can record and erase data. When it is determined that the disc type of the optical disc 25 is the one capable of recording and erasing data, the process proceeds to step ST37.

In step ST37, the data recording / reproducing apparatus 1 determines whether or not a visual image should be formed again on the optical disc 25. Visual image on optical disk 2
If it is determined to re-form 5, the process returns to step ST25.

Following the procedure of steps ST21 to ST38 as described above, the data recording / reproducing apparatus 1
A visible image is formed in the data unrecorded area of the optical disc 25 by a plurality of recording marks.

In step ST23, if the optical disk 25 has data recorded on it by DAO, or if it has been finalized, and if there is a data unrecorded area above a certain area, then It is determined that the optical disk 25 is a medium capable of forming a visual image. If the optical disc 25 is in such a state, the optical disc 25 cannot be additionally recorded in the format. Therefore, even if a visual image is formed in the data unrecorded area, there is no problem in compatibility.

The visual image formed in the data unrecorded area of the optical disc 25 may be directly supplied from the external device 23 to the system controller 12. In this case, step ST27 is skipped.

When a visual image is formed on the optical disc 25 in which all the data recording areas are unrecorded, data is recorded in the entire area of the PCA which is a laser beam test writing area before the visual image is formed. You can leave it. If the optical disc 25 is in such a state, the optical disc 25 cannot be additionally recorded in the format.
Therefore, even if a visual image is formed in the data unrecorded area, there is no problem in compatibility.

In the above description, the data recording / reproducing apparatus 1 has explained the case where the data supplied from the external device 23 via the interface 22 is converted into the visual image by the visual image generating section 24, but other than the above. The method may generate a visual image. For example, if the optical disk 25 is C
If the format is D-Text, the above-mentioned CD-Te
You may use the content information etc. contained in xt as a visual image.

Content information and the like can be obtained via the Internet. The data recording / reproducing apparatus 1 may use the content information or the like acquired via the Internet as a visual image.

The optical disc 25 is a double-sided type disc whose both sides are a data reproducing surface, a reproducing recording surface or an erasable reproducing recording surface, and one side is a data reproducing surface, a reproducing recording surface or an erasable There is a single-sided type disc which is a reproducing / recording surface and the other surface is a surface on which visible content information is written (hereinafter referred to as a content information writing surface). Hereinafter, an example of recording a visual image on the optical disc 25 as described above by the data recording / reproducing apparatus 1 to which the present invention is applied is shown together with the laminated structure of the optical disc 25.

The reproduction-only optical disc 25 is classified into a double-sided type in which both sides are reproduction sides, and a single-sided type in which one side is a reproduction side and the other side is a content information writing side.
For example, CD-DA, CD-ROM, DVD (Digi
tal Versatil Disk) -Video, D
VD-ROM, DVD-Audio, etc. In addition, D
The VD is a disc having a thickness of 12 mm and a diameter of 12 cm and made of polycarbonate as a base material, like the CD. Also, C
Whereas D is a 1.2 mm thick single plate, DVD is
It has a structure in which two 0.6 mm thick disks are bonded together.

The reproduction-only optical disc 25 is shown in FIG.
As shown in (a), the reflective layer 32 and the protective layer 31 are laminated on the substrate 30. For the reflective layer 32, a metal such as gold, silver, aluminum, copper or platinum, or an alloy containing these metals is used. An example of forming a visible visual image with a plurality of recording marks on the read-only optical disc 25 will be shown below.

The optical disc 25 shown in FIG. 16 (b) has a visual image recording layer 33, a reflection layer 32, and a visual image recording layer 33 on a substrate 30.
It is a single-sided type disc in which a protective layer 31 is laminated. The visual image recording layer 33 is a dedicated recording layer on which a visible visual image is formed by a plurality of recording marks. The optical disc 25 is irradiated with laser light from the substrate 30 side, and a visual image is formed on the visual image recording layer 33 by a plurality of recording marks. As described above, by forming the visual image recording layer 33 between the substrate 30 and the reflective layer 32, the visual image can be viewed from the reproduction surface side. Note that different wavelengths or different laser light intensities are used for the laser light for reproducing data and the laser light for forming a visual image.

Further, the optical disc 25 shown in FIG.
Is provided on the substrate 30 and the visual image recording layer 3 and the reflective layer 32.
This is a single-sided type disc in which 3 and a protective layer 31 are laminated. The optical disc 25 is irradiated with laser light from the protective layer 31 side, and a visual image is formed on the visual image recording layer 33 by a plurality of recording marks. As described above, by forming the visual image recording layer 33 between the protective layer 31 and the reflective layer 32, the visual image can be viewed from the content information writing surface side.

The optical disk 25 shown in FIG. 16D is a combination type of the above-mentioned FIG. 16B and FIG. 16C, and has a first visual image recording layer 33, a reflective layer 32 and a first visual image recording layer 33 on a substrate 30. , A second visual image recording layer 33 and a protective layer 31 are laminated to form a double-sided type disc.
The optical disc 25 is irradiated with laser light on both sides of the disc, and a visual image is formed on the visual image recording layers 33 on both sides by a plurality of recording marks. As described above, the second visual image recording layer 33 is formed between the protective layer 31 and the reflective layer 32, and the substrate 30 and the reflective layer 3 are formed.
By forming the first visual image recording layer 33 between the first visual image recording layer 33 and the second visual image recording layer 33, the visual image can be viewed from the reproduction surface side and the content information writing surface side.

In the optical disc 25 shown in FIG. 16E, the reflection layer 32 and the first protective layer 31 are laminated on one side of the substrate 30, and the visual image recording layer 3 is formed on the other side of the substrate 30.
This is a double-sided type disc in which 3 and the second protective layer 31 are laminated. The optical disc 25 is irradiated with laser light from the second protective layer 31 side, and a visual image is formed on the visual image recording layer 33 by a plurality of recording marks. As described above, by forming the visual image recording layer 33 between the substrate 30 and the second protective layer 31, the visual image can be viewed from the reproduction surface side on which the second protective layer 31 is formed. Is possible.

The optical disk 25 shown in FIG. 16 (f) has a substrate 30 in which a reflective layer 32, a first visual image recording layer 33, and a first protective layer 31 are laminated on one side of the substrate 30.
It is a double-sided type disc in which the second visual image recording layer 33 and the second protective layer 31 are laminated on the other side of 0. The optical disc 25 is irradiated with laser light on both sides of the disc, and a visual image is formed on the visual image recording layers 33 on both sides by a plurality of recording marks. As described above, the first visual image recording layer 33 is formed between the first protective layer 31 and the reflective layer 32, and the second visual image is formed between the substrate 30 and the second protective layer 31. By forming the recording layer 33, a visual image can be viewed from both reproduction surface sides. The optical disc 25 may have a laminated pattern other than the above.

The optical disc 25 capable of recording and recording data includes a double-sided type in which both sides are recording / reproducing sides, and a single-sided type in which one side is a recording / reproducing side and the other side is a content information writing side. There are, for example, CD-R, DV
D-R, DVD + R, etc.

As shown in FIG. 17A, the optical disc 25 capable of recording and recording data has a reflective layer 32 and a recording layer 34 laminated. The optical disc 2
5 has a structure in which the substrate 30 is bonded via the connection layer 37. In the recording layer 34, organic dyes such as porphyrin dyes, cyanine dyes, azo dyes, dipyrromethene dyes, polymethylene dyes, and naphthoquinone dyes are used. An example of forming a visible visual image with a plurality of recording marks on the optical disc 25 capable of recording and additionally recording data will be described below.

An optical disc 25 shown in FIG. 17B has a visual image recording layer 33, a recording layer 34, and a visual image recording layer 33 on a substrate 30.
This is a single-sided disc in which a reflective layer 32 and a protective layer 31 are laminated. The optical disc 25 has a substrate 30.
Laser light is irradiated from the side, and a visible visual image is formed on the visual image recording layer 33 by the plurality of recording marks. As described above, by forming the visual image recording layer 33 between the substrate 30 and the recording layer 34, the visual image can be viewed from the recording / reproducing surface side.
Note that different wavelengths or different laser light intensities are used for the laser light for recording and reproducing data and the laser light for forming a visual image.

The optical disc 25 shown in FIG. 17C has a recording layer 34, a visual image recording layer 33, and a visual image recording layer 33 on a substrate 30.
This is a single-sided disc in which a reflective layer 32 and a protective layer 31 are laminated. The optical disc 25 has a substrate 30.
Laser light is irradiated from the side, and a visible visual image is formed on the visual image recording layer 33 by the plurality of recording marks. As described above, by forming the visual image recording layer 33 between the reflective layer 32 and the recording layer 34, the visual image can be viewed from the recording / reproducing surface side.

The optical disc 25 shown in FIG. 17 (d) is a single-sided type disc in which a recording layer 34, a reflective layer 32, a visual image recording layer 33, and a protective layer 31 are laminated on a substrate 30. . The optical disc 25 has a protective layer 3
Laser light is emitted from the first side, and the visual image recording layer 33
A visible image is formed by the plurality of recording marks. As described above, by forming the visual image recording layer 33 between the protective layer 31 and the reflective layer 32, the visual image can be viewed from the content information writing surface side.

The optical disc 25 shown in FIG. 17 (e) is a single-sided disc in which a recording layer 34 and a reflective layer 32 are laminated, and a visual image recording layer 33 is laminated via a connection layer 37. It has a structure in which 30 are stuck together. The optical disc 25 is irradiated with laser light from the visual image recording layer 33 side, and a visual image is formed on the visual image recording layer 33 by a plurality of recording marks. As described above, the substrate 30 and the connection layer 37
By forming the visual image recording layer 33 between and, the visual image can be viewed from the content information writing surface side.

The optical disk 25 shown in FIG. 17 (f) is a single-sided disk in which a recording layer 34, a visual image recording layer 33, and a reflective layer 32 are laminated, and the substrate 3
It has a structure in which 0s are stuck together. The optical disk 25 is irradiated with laser light from the recording layer 34 side, and a visual image is formed on the visual image recording layer 33 by a plurality of recording marks. As described above, by forming the visual image recording layer 33 between the reflective layer 32 and the recording layer 34, the visual image can be viewed from the recording / reproducing surface side.

The optical disk 25 shown in FIG. 17 (g) is a single-sided disk in which a visual image recording layer 33, a recording layer 34, and a reflective layer 32 are laminated, and the substrate 3
It has a structure in which 0s are stuck together. The optical disc 25 is irradiated with laser light from the visual image recording layer 33 side, and a visual image is formed on the visual image recording layer 33 by a plurality of recording marks. As described above, by forming the visual image recording layer 33 between the substrate 30 and the recording layer 34, the visual image can be viewed from the recording / reproducing surface side.

The optical disc 25 shown in FIG. 17 (h) has a first recording layer 34 and a first reflecting layer 32 laminated, and a second reflecting layer 32 and a second recording layer via a connecting layer 37. Layer 34
And a visual image recording layer 33 are laminated. The optical disc 25 is irradiated with laser light from the visual image recording layer 33 side, and a visual image is formed on the visual image recording layer 33 by a plurality of recording marks. As described above, by forming the visual image recording layer 33 between the substrate 30 and the second recording layer 34, the visual image can be viewed from the content information writing surface side.

The optical disc 25 shown in FIG. 17 (i) has a first visual image recording layer 33, a first recording layer 34, and
A double-sided type in which a first reflective layer 32 is laminated, and a second reflective layer 32, a second recording layer 34, and a second visual image recording layer 33 are laminated via a connection layer 37. It is a disc. The optical disc 25 is irradiated with laser light on both sides of the disc, and a visual image is formed on the visual image recording layers 33 on both sides by a plurality of recording marks. As described above, the first visual image recording layer 33 is formed between the substrate 30 and the first recording layer 34, and the second visual image recording is formed between the substrate 30 and the second recording layer 34. By forming the layer 33, the visual image can be viewed from both recording / reproducing surface sides. The optical disc 25 may have a laminated pattern other than the above, and the recording layer 34 may be multilayered. The visual image may be formed on the recording layer 34 by a plurality of recording marks without laminating the visual image recording layer 33. In this case, the visual image is formed in the data unrecorded area of the recording layer 34.

The optical disk 25 capable of recording and erasing data has a double-sided type in which both sides are erasable recording and reproducing surfaces, one side is an erasable recording and reproducing surface, and the other surface is a content information writing surface. The single-sided type is, for example, a CD-RW, a DVD-RW, a DVD + RW, or the like.

The optical disc 25 capable of recording and erasing data has a dielectric layer 35, a recording layer 36, a dielectric layer 35, and a reflective layer 3 on a substrate 30, as shown in FIG. 18 (a).
2 and the protective layer 31 are laminated. The recording layer 36 is made of an alloy material containing Ge, Sb, Te, etc.
A phase change inorganic material, which is an alloy material containing g, In, Sb, and Te as main raw materials, is used. An example of forming a visual image with a plurality of recording marks on the optical disc 25 capable of recording and erasing data will be described below.

The optical disc 25 shown in FIG. 18B has a dielectric layer 35, a recording layer 36, and a dielectric layer 3 on a substrate 30.
5, a visual image recording layer 33, a reflective layer 32, and a protective layer 31 are laminated, and this is a single-sided type disc. The optical disc 25 is irradiated with laser light from the substrate 30 side, and a visual image is formed on the visual image recording layer 33 by a plurality of recording marks. As described above, by forming the visual image recording layer 33 between the reflective layer 32 and the dielectric layer 35, the visual image can be viewed from the erasable recording / reproducing surface side. Note that different wavelengths or different laser light intensities are used for the laser light for recording, reproducing, and erasing data and the laser light for forming a visual image.

The optical disk 25 shown in FIG. 18C has a visual image recording layer 33 and a dielectric layer 35 on a substrate 30.
The recording layer 36, the dielectric layer 35, the reflective layer 32, and the protective layer 31 are laminated to form a single-sided disc. The optical disc 25 is irradiated with laser light from the substrate 30 side, and a visual image is formed on the visual image recording layer 33 by a plurality of recording marks. As described above, by forming the visual image recording layer 33 between the substrate 30 and the dielectric layer 35, the visual image can be viewed from the erasable recording / reproducing surface side.

The optical disc 25 shown in FIG. 18D has a dielectric layer 35, a recording layer 36, a dielectric layer 35, and a first reflecting layer 32 laminated, and a second layer via a connection layer 37. This is a single-sided type disc in which a reflective layer 32 and a visual image recording layer 33 are laminated. The optical disc 25 is
Laser light is emitted from the visual image recording layer 33 side, and a visible visual image is formed on the visual image recording layer 33 by the plurality of recording marks. As described above, the substrate 3
0 and the second reflective layer 32 between the visual image recording layer 33.
By forming the, the visual image can be viewed from the content information writing surface side.

The optical disc 25 shown in FIG. 18 (e) is a single-sided type in which a dielectric layer 35, a recording layer 36, a dielectric layer 35, a visual image recording layer 33, and a reflecting layer 32 are laminated. It is a disc. The optical disc 25 is irradiated with laser light from the side of the dielectric layer 35, and a visual image is formed on the visual image recording layer 33 by a plurality of recording marks. As described above, by forming the visual image recording layer 33 between the reflective layer 32 and the dielectric layer 35, the visual image can be viewed from the erasable recording / reproducing surface side. The optical disc 25 may have a laminated pattern other than the above, and the recording layer 36 may be multilayered. The visual image recording layer 3
It is also possible to form a visible visual image with a plurality of recording marks on the recording layer 36 without stacking the three. in this case,
The visual image is formed in the data unrecorded area of the recording layer 36.

When a laser beam is incident from the content information writing surface side to form a visual image, information cannot be read from the content information writing surface and the optical disc 25 cannot be recognized. The presence or absence of a disc is detected by a sensor or the like that detects the presence or absence of the optical disc 25, and it is determined whether or not a visual image can be formed.

A heat-sensitive layer may be laminated on the optical disc 25. The heat-sensitive layer is a layer that causes a visual color change when irradiated with laser light. Therefore, the optical disc 25
It is possible to visually judge whether the disc is a used disc or an unused disc. Further, by providing a plurality of heat-sensitive layers and causing different color changes depending on the number of times the laser light is irradiated, it is possible to visually judge the number of times the optical disc 25 has been used.

Further, as shown in FIG. 19, the optical disc 25 has a data recording area 200 and a visual image recording area 2
02 may be divided in advance. In the case of such a configuration, the data recording area 200 may be provided on the inner peripheral side and the visual image recording area 202 may be provided on the outer peripheral side, or the visual image recording area 202 may be provided on the inner peripheral side and the outer peripheral side. The data recording area 200 may be provided in the above, or the visual image recording area 202 and the data recording area 200 may be alternately provided.

Further, the data recording / reproducing apparatus 1 to which the present invention is applied may form a visual image on the optical card with a plurality of recording marks. An example of forming a visual image on the optical card by the data recording / reproducing apparatus 1 will be described below.

The optical card has an area A as shown in FIG.
Is a data recording / reproducing area, and area B is a visual image recording area. Data recording / reproducing apparatus 1
Generates a visual image as in the case of forming the visual image on the optical disc 25, and forms the visual image on the area B of the optical card with a plurality of recording marks. Further, as shown in FIG. 21, the optical card may be configured by dividing the area A into a data recording / reproducing area and a visual image recording area.

By forming a visual image on the optical card by the data recording / reproducing apparatus 1 as described above, the following usage is possible.

By recording the company name, address, telephone number, name, company logo, mail address, home page address, etc. as a visual image on the optical card, the optical card can be used as a business card. .

The medical examination record of the medical examination at the hospital is recorded in the data recording / reproducing area, and the medical examination date and time and the appointment date and time are recorded as visual images in the visual image recording area.
By mixing the information that is difficult to be visually observed and the information that may be visually visible, it becomes possible to use it as a medical examination card.

When software is downloaded via the Internet, the optical card is recorded by recording the serial number and password issued at the time of software download as a visible image in the visual image recording area of the optical card. It can be used as a memo pad.

The usable amount of money, call time, etc. are set in the optical card, and the available balance, usable call time, date of use, etc. are visually displayed in the visual image recording area of the optical card. By recording, the optical card can be used as a prepaid card.

By recording the access method to the airfield or event venue in the data recording / playback area of the optical card, the visual image of the date of boarding, the date of performance, the name of the venue, the seat number, etc. can be viewed visually. The optical card can be used as a ticket by recording in the recording area for use.

When forming a visible image on the optical disk 25 or the optical card, the On / O of the laser light is used.
If the ff control is performed at the same time, distortion may occur in the formation of a visual image because the radial directions of the inner circumference side and the outer circumference side of the disk are different. Therefore, as shown in FIG. 22, the distortion is corrected by changing the irradiation time of the laser light on the inner peripheral side and the outer peripheral side according to the radial position.

In this way, the data recording / reproducing apparatus 1 is
By forming the visual image generated by the visual image generation unit 24 on the optical recording medium such as the optical disc 25 or the optical card with a plurality of recording marks, the optical recording medium is scratched, dust is attached, or is rubbed. Since the visual image does not disappear, you can always identify the optical recording medium.
Even if a visible visual image is formed, the eccentricity of the disc does not occur, so that the recorded data can be reproduced and recorded at high speed, and the optical recording medium can record and erase the data. In this case, it is possible to form and erase a visible visual image any number of times, and to form a visible visual image in the data unrecorded area,
There is no problem in compatibility with the current format.

Next, a more specific operation when recording a visible image (hereinafter also referred to as a visible image) on the optical disc 25 will be described with reference to the flowcharts shown in FIGS.

In the following description, a host PC (Personal Computer) (not shown) is used as the external device 23 for controlling the data recording / reproducing apparatus 1 whose configuration has been described with reference to FIG.
omputer) is connected.

To record a visible visual image on the optical disc 25, as shown in FIG. 23, first, in step ST101, the optical disc 25 is inserted into a predetermined portion of the data recording / reproducing apparatus 1. Data recording / reproducing apparatus 1
Performs a check disk process of determining the type of the optical disk 25 according to the insertion of the optical disk 25.

Next, in step ST102, the data recording / reproducing apparatus 1 determines whether or not a visual image can be recorded on the optical disk 25 according to the execution result of the check disk in step ST101. If a visual image can be recorded on the optical disc 25, the process proceeds to step ST1.
03, and if recording is not possible, step ST
The process proceeds to step 105 and outputs an error notification to the host PC controlling the data recording / reproducing apparatus 1.

In step ST103, a visual image recording command for recording a predetermined visual image is issued from the host PC in response to the fact that a visual image can be recorded on the optical disc 25, and the data recording / reproducing apparatus 1
Is output to.

The data recording / reproducing apparatus 1 receives the visual image recording command, judges whether the received visual image recording command is executable, and if it is executable, advances the process to step ST104, and if it is not executable. Advances the process to step ST105 and sends an error notification to the host PC.
Output to.

In step ST104, the data recording / reproducing apparatus 1 records the visual image on the optical disc 25 in response to the visual image recording command. If the visual image is correctly recorded on the optical disk 25, the process is ended, and if the visual image recording is unsuccessful, the process proceeds to step ST105 to output an error notification to the host PC.

The data recording / reproducing apparatus 1 records the visual image on the optical disc 25 in this manner. continue,
The process executed in each of step ST101, step ST102, step ST103, and step ST104 in FIG. 23 will be described in detail.

First, the check disk process executed in step ST101 when the optical disk 25 is inserted into the data recording / reproducing apparatus 1 will be described.

In the check disk process, first, when the inserted optical disk 25 is a recordable medium, the data recording / reproducing apparatus 1 detects the PCA area and PMA area described in FIG. 2 above.

Further, the data recording / reproducing apparatus 1 detects the lead-in information area, the program area, and the lead-out information area when data is recorded on the optical disc 25.

Further, the data recording / reproducing apparatus 1 has a ratio of ATIP (Absolute Time In Pre-groove), which is absolute time information recorded in the groove of the optical disc 25, once in every 10 frames in the lead-in information area. The maximum lead-out information area start address is obtained from the special information inserted in.

By acquiring the maximum lead-out information area start address, the data recording / reproducing apparatus 1 can know to which address of the optical disc 25 the data can be recorded.

Furthermore, the data recording / reproducing apparatus 1 reads the TOC information from the detected PMA area and TOC area of the lead-in information area to obtain the end address of the last track.

The data recording / reproducing apparatus 1 uses the TC of the TOC area.
By reading the OC information, it is possible to know up to which address the data is actually recorded.

Further, the data recording / reproducing apparatus 1 knows whether or not the TOC information is described in the TOC area and is finalized, and further, based on the content of the TOC information, the written data is finalized in a state in which additional recording is not possible. It is possible to determine whether or not it has been finalized and whether or not it has been finalized so that it can be additionally written.

The data recording / reproducing apparatus 1 includes the optical disc 25.
Is executed and the above information is directly read. The host PC can acquire the above information via the data recording / reproducing apparatus 1 by inputting a predetermined command.

For example, the host PC is the Read Atip Inform
By outputting the ation command to the data recording / reproducing apparatus 1, the maximum lead-out information area start address can be acquired from the ATIP special information.

Further, the host PC obtains the TOC information by outputting the Read TOC command to the data recording / reproducing apparatus 1, and whether or not the TOC information has been finalized in the non-recordable state and has been finalized in the additionally recordable state. You can know whether or not.

Furthermore, the host PC outputs the Read PMA command and the Read Track Information command to the data recording / reproducing apparatus 1 to obtain the end address of the last track recorded on the optical disk 25, and It is possible to know how much of the data is recorded on the optical disc 25.

As described above, the check disk process is executed by inserting the optical disk 25 into the data recording / reproducing apparatus 1, and the host PC outputs the predetermined command to the data recording / reproducing apparatus 1 to obtain the check disk process. Information can be obtained. Therefore,
Either the data recording / reproducing apparatus 1 or the host PC can judge whether visible data can be recorded on the optical disc 25.

Next, the process of determining whether or not a visual image can be recorded on the optical disc 25 in step ST102 will be described with reference to the flowchart shown in FIG.

First, in step ST111, the data recording / reproducing apparatus 1 or the host PC checks the recording state of the optical disc 25. In the process here, step ST10
What kind of disc is the optical disc 25 actually inserted in the data recording / reproducing apparatus 1 using the information obtained by the check disc process executed in 1.
Whether the visual image can be recorded is determined, and if the visual image can be recorded, the recordable recording capacity or the like is calculated.

Details of the step ST111 will be described below with reference to the flowchart shown in FIG.

In step ST121, the data recording / reproducing apparatus 1 or the host PC determines whether the ATIP special
Since the arrangement of information is different from that of a normal optical disk, it is determined whether the optical disk 25 inserted in the data recording / reproducing apparatus 1 is an optical disk having a visible image area in which a visual image can be recorded.

Further, whether or not the mark recorded in a predetermined area of the optical disc 25 is detected and the optical disc inserted in the data recording / reproducing apparatus 1 is an optical disc having a visible image recording area capable of recording a visual image. To judge.

If the optical disk 25 is an optical disk having a visible image recording area, the process is step S12.
If it is determined that the optical disc is a normal optical disc having no visible image recording area but only a data recording area, the process proceeds to step ST123.

An optical disc having a visible image recording area, which is different from the ordinary optical disc, will be described with reference to FIG. An optical disk having a visible image recording area is an optical disk in which a visible image recording area for recording a visual image is secured in advance on the outer circumference of the optical disk as shown in FIG.

As shown in FIG. 29, an optical disc having a visible image recording area has a data recording area for recording normal data and a visible image recording area.
Between this data recording area and the visible image recording area, a No ATIP area where ATIP does not exist is provided.

This is because the data recording / reproducing apparatus 1 ignores the lead-out information recording area start address and ATI.
Over B which is a function to record to the place where P does not exist
In the case of a drive device equipped with the urn function, normal data is recorded up to the visible image recording area which is a dedicated area for recording a visual image unless the ATIP-free No ATIP area is provided as described above. Therefore, the No ATIP area is provided to prevent this.

In addition, LPP (Land P) which is absolute time information.
No LPP area without re-Pit) or No ADIP area without ADIP (Address In Pre-groove) which is also absolute time information may be provided.

As described above, in the case of an optical disc in which the visible image recording area is provided in advance, a part of the case for carrying the optical disc is formed of a transparent material as shown in FIG. The visible image recording area can be confirmed even if it is stored in.

When a visible image recording area is provided in advance on the optical disk, recording the bar code in the visible image recording area enables easy management of the optical disk.

In step ST122, the data recording / reproducing apparatus 1 or the host PC obtains the recordable capacity Ce of the visible image recording area provided on the optical disc 25 and the recordable start address Ae.

In step ST123, the data recording / reproducing apparatus 1 or the host PC controls the OP section 10 based on the special information to seek from the lead-out information area start address to, for example, an area of 5 minutes.

In step ST124, the data recording / reproducing apparatus 1 or the host PC determines whether or not ATIP exists at the position of the optical disk 25 which is sought in step ST123. If the ATIP exists, it is determined that the visible image recording area exists, and the process proceeds to step ST.
If the ATIP does not exist, it is determined that the visible image recording area does not exist and the process proceeds to step S122.
Proceed to T125.

In step ST125, the data recording / reproducing apparatus 1 or the host PC determines whether or not the data written in the program area of the optical disk 25 has been finalized depending on whether the TOC information in the TOC area is detected in the check disk process. to decide.

The data recording / reproducing apparatus 1 or the host PC is
When the TOC information is detected, it is determined that it has been finalized, and the process proceeds to step ST127 to
Since the information has not been detected, it is determined that the information has not been finalized, and the process proceeds to step ST126.

At step ST126, the data recording / reproducing apparatus 1 or the host PC finalizes the unfinalized data, and calculates the visible image recording capacity and the recordable start address.

At this time, two patterns are conceivable: a case in which additional recording is not possible and finalization is performed, and a case in which additional recording is possible and finalization is performed.

When finalization is not possible for additional recording, data cannot be written in the outer peripheral portion of the lead-out information area which is written together with the lead-in information area, and it is secured as an area for recording a visible image.

The recordable capacity Ca of the visible image and the recordable start address Aa in the case of finalizing without additional recording are obtained. If the start address of the recorded outermost lead-out information area obtained from the TOC information is LOSA, the length of the single-session lead-out information area is 1 minute 30 seconds, and therefore 1 minute 30
(Seconds) × 75 (frames / second) = 6750 frames.

Therefore, it can be determined that nothing is recorded at addresses after LOSA + 6750, and the recordable start address Aa becomes LOSA + 6750.

Next, the physically recordable capacity of the optical disk 25 is calculated. When the maximum lead-out information area start address permitted by the optical disc 25 obtained from the above special information is ALOSA, ALOSA + 6750 is the maximum address that the optical disc 25 can record.

Thus, the recordable capacity Ca is (ALO
SA + 6750)-(LOSA + 6750) = ALOS
It becomes A-LOSA.

On the other hand, when data can be additionally written and finalized, data can be further written in the outer peripheral portion of the lead-out information area, so that a track into which visible image data is written can be generated. The visible image data is data indicating what kind of image the visible image recorded on the optical disc 25 is. By reading the visible image data, the user can know what the visible image recorded on the optical disc 25 is without looking at the recording surface of the optical disc 25. The track in which the visible image data is written is finalized with no additional recording.

When recording the visible image data, the data indicating the visible image, the start address and the end address where the visible image is recorded are also recorded.

The start address and end address where the visible image is recorded can be recorded in the PMA area. The data recording / reproducing apparatus 1 can know the recording range of the visible image data by reading the start address and the end address recorded in the PMA area. When recording the start address and end address in the PMA, describe a format that can be distinguished from a normal track.

The PMA is an area for temporarily holding information on a disc that has not been finalized, and is a CD.
-For R media, Orange Book Part 3, Vo
12 and Ver1.10 are defined as shown below.

For PMA, Mode 0: Reserve
d, Mode 1: Track start time and end time, Mode 2: Disc ID, disc type (CD-ROM or CD-I or CD-X
A) information, Mode3: information of skipped tracks, Mode4: information of non-skipped tracks, Mo
Information such as de5: skip time interval, Mode6: non-skip time interval, Mode7-FF: Reserved is recorded.

Further, in the case of the CD-RW medium, it is defined as follows in Orange Book Part 3, Vol2, Ver1.10.

For PMA, Mode 0: Erase P
pattern, Mode 1: Track start time and end time, Mode 2: Disc ID, disc type (CD-ROM or CD-I or
CD-XA) information, Mode3: information of tracks to be skipped, Mode4: Reserved, Mode
5: Non-playback time, Mode 6-FF: Reserv
Information such as ed is recorded.

The PMA area has a structure as shown in FIG. 31, and each of the Mo described above in the Control.
Each mod is assigned by assigning a bit corresponding to de
Identify e. The information indicating that the image is a visible image is described in the area of Mode 6-FF, for example.

For example, in the case of the track of Mode 1, when the data starts from "IMAGE", the start address at which the visible image is recorded and the end address are continued, and the visible image is character data,
The relevant ASCII code is recorded. The rest is recorded in a format that can be filled with FF.

Next, when the data is recordable and finalized, the recordable capacity Cb of the visible image and the recordable start address Ab are obtained.

When additional recording is possible, it is always a multi-session. The first lead-out information area of the multi-session is 1 minute and 30 seconds. Also, the track for writing the visible image data is at least 4 seconds, that is, 300 tracks.
A frame is required, and by adding more tracks, the length of the lead-in information area is 4500 frames (1 minute x
75) and the length of the lead-out information area of 6750 frames are added.

Therefore, if the start address of the recorded outermost lead-out information area obtained from the TOC information is LOSA, the recordable start address A
b is (LOSA + 6750) + 4500 + 300 + 2
It becomes 250.

Next, the physical recording capacity of the optical disk 25 is calculated. Letting ALOSA be the maximum lead-out information area start address permitted by the optical disc 25 obtained from the above special information,
ALOSA + 6750 is the maximum address that the optical disc 25 can record.

Thus, the recordable capacity Cb is (ALO
SA + 6750)-((LOSA + 6750) +450
0 + 300 + 2250).

Whether recording is finalizable with no additional recording or finalization with additional recording is determined by the recordable capacity of the optical disk 25. If there is not enough recording capacity for recording visible image data, finalization is not possible with additional recording. .

In step ST127, the data recording / reproducing apparatus 1 or the host PC determines whether or not the data can be additionally recorded and has been finalized. When the additional recording is not possible and the finalization is not performed, the process proceeds to step ST128, and when the additional recording is not possible and the finalization is performed, the process proceeds to step ST129.

In step ST128, if the data recording / reproducing apparatus 1 or the host PC is capable of additional recording and has been finalized, it is necessary to further generate a track in the outer peripheral portion of the lead-out information area and finalize it as not additionally recordable. Therefore, in consideration of this, the capacity capable of recording the visible image and the recordable start address are calculated. The recordable start address Ac is (LOSA
+6750) + 4500 + 300 + 2250, and the recordable capacity Cc is (ALOSA + 6750)-((L
OSA + 6750) + 4500 + 300 + 2250). Further, here, the new track can be a track in which visible image data in which a visible image is converted into data is written.

In step ST129, since the data recording / reproducing apparatus 1 or the host PC has been finalized in a state in which additional recording is not possible, the visible image recording capacity and the recordable start address are calculated. The recordable start address Ad becomes LOSA + 6750, and the recordable capacity Cd is (ALOSA + 6750) −.
(LOSA + 6750) = ALOSA-LOSA.

However, the length of the lead-out information area is
In some cases, 6750 frames or more are actually recorded, so the data recording / reproducing apparatus 1 searches up to which address the data is actually recorded on the optical disc 25. For example, reading is performed from the recordable address of the optical disc 25, and the presence or absence of the RF signal is checked up to the last address of the disc. The address of the last detected RF signal becomes the next recordable address. Also, the host P
The C can obtain the detected information by outputting a command to the data recording / reproducing apparatus 1.

As described above, by executing steps ST121 to ST129, the recording state of the optical disc 25 can be checked.

Returning again to the flowchart of FIG. 24, the steps after step ST112 will be described.

In step ST112, the data recording / reproducing apparatus 1 or the host PC determines whether or not a visual image is recorded.

In step ST112, the data recording / reproducing apparatus 1 causes the recordable start address Ax (x is a, b,
seek to either c or d).

[0202] In step ST113, the data recording / reproducing apparatus 1 determines the seekable recordable start address A.
The optical disc 25 is read from x.

In step ST114, the data recording / reproducing apparatus 1 or the host PC determines whether the RF signal is detected. If the RF signal is detected, the process proceeds to step ST115, and if the RF signal is not detected, the process proceeds to step ST116.

At step ST115, the data recording / reproducing apparatus 1 or the host PC determines that visible data cannot be recorded.

At step ST116, the data recording / reproducing apparatus 1 or the host PC judges whether or not the ATIP has run out. If the ATIP is gone, the process proceeds to step ST117, and if the ATIP is present, the process returns to step ST114 to continue the read.

The presence of ATIP indicates that the read portion is the recordable area, and the absence of ATIP indicates that the read portion is not the recordable area.

In step ST117, the data recording / reproducing apparatus 1 or the host PC determines that no visible image is recorded in the recording area starting from the recordable start address Ax sought in step ST112.
Further, the data recording / reproducing apparatus 1 or the host PC acquires the recordable last address Bx indicating the final address of the recordable area from the read result.

In step ST118, the data recording / reproducing apparatus 1 or the host PC determines whether or not the visible image recordable capacity is zero based on the recordable last address Bx acquired in step ST117. If the visible image recordable capacity is zero, the process proceeds to step ST115.
If not zero, the process proceeds to step S115.

In step ST119, the data recording / reproducing apparatus 1 or the host PC determines that visible data can be recorded in the recording area starting from the recordable start address Ax.

In this way, the data recording / reproducing apparatus 1 or the host PC checks the recording state of the optical disc 25 in ST111 with various information recorded on the optical disc 25, and actually reads the recording area of the optical disc 25. Therefore, it is judged whether visible data can be recorded.

Next, the operation when the visual image recording command is transmitted from the host PC in step ST103 of the flowchart shown in FIG. 23 will be described using the flowchart shown in FIG.

[0212] In ST131, the host PC activates the visible image recording application in response to the user's instruction. The visible image recording application uses a host PC when recording a visible image on the optical disc 25.
And application software for controlling the data recording / reproducing apparatus 1.

By using the visible image recording application, the user can input desired character data to be recorded as a visible image on the optical disc 25, and perform operations such as layout adjustment of the input character data on the optical disc 25. GUI (Graphical User Interfa)
ce) can be executed easily.

When the visible image recording application is started, the user can use the keyboard or the like to enter the host PC.
Then, visible image data such as character data (ASCII code) to be recorded on the optical disc 25 as a visible image is input.

Bit map data can also be used as the visible image data.

Furthermore, the user can specify the recording start address for designating the address of the optical disk 25 on which the visible image data to be input is recorded, the size information of the character data,
For example, input information specifying large, medium, and small.

When the user finishes inputting the information necessary to record the visible image on the optical disc 25 based on the instruction of the visible image recording application, the user requests the issuance of the visual image recording command for starting the recording.

In response to the request, the visible image recording application issues a visual image recording command and outputs it to the data recording / reproducing apparatus 1 together with the character data, the recording start address and the character data size information.

The CD-TEXT information recorded in the TOC area of the optical disc 25 can be recorded as a visible image. In this case, the data recording / reproducing apparatus 1 moves from the TOC area to the C area in response to an instruction from the host PC.
The D-TEXT information is read.

In step ST132, the data recording / reproducing apparatus 1 checks the character data input by the user. For example, it is determined whether or not the number of characters of the input character data is within the number of recordable characters with the specified character size in the recording area starting from the specified address.

If the number of characters of the character data exceeds the number of recordable characters, the process proceeds to step ST105, and an error notification is sent to the host PC to inform the user of that fact. If it is within the recordable number of characters, the process proceeds to step ST133.

Note that this step may be carried out by the visible image recording application running on the host PC.

At step ST133, the data recording / reproducing apparatus 1 checks the recordable area of the optical disc 25. The data recording / reproducing apparatus 1 determines whether the recording start address input by the user is in the recordable area of the visible image. If the recording start address is outside the recordable area, the process proceeds to step ST1.
The procedure advances to 05 to send an error notification to the host PC to notify the user of that fact. If the recording start address is within the recordable area, the process proceeds to step ST134.

Note that this step may be performed by a visible image recording application running on the host PC.

In step ST134, the data recording / reproducing apparatus 1 determines from the recording start address, the character data size information, and the number of character data whether there is a recording capacity capable of storing the character data of the input number of characters.

The number of characters of the character data recorded on the optical disk 25 depends on the size of the character data recorded.

For example, the visual image data obtained by converting the visible image data described later is an m × m matrix, the recordable start address is SA, the recordable end address is LA, the track pitch is P, and the linear velocity is Is V and the radius of the optical disk 25 at the address 00:00:00 is r0, the SA radial position RSA is RSA =
√ ((SA × m × P) / 75 / π + r0 × r0), and the radial position LSA of LA is LSA = √ ((LA × V
XP) / 75 / π + r0 × r0). Note that r0 =
25 mm, P = 1,6 μm, V = 1.2 m / s.

For example, a character image is a [c
m], and b [cm] in the radial direction is a [cm] × b [c
m], if LSA-RSA> b, a character image can be recorded, and (2 × RSA ×
The number of recordable character images is calculated by π) / a.

If the optical disk 25 has sufficient recording capacity for recording the input character data, the process proceeds to step ST104. If there is not enough recording capacity, the process proceeds to step ST105 and an error notification is given. Host P
It is sent to C and the user is informed accordingly.

Note that this step may be carried out by the visible image recording application running on the host PC.

Next, the operation for recording the visible image on the optical disc 25 in step ST104 of the flowchart shown in FIG. 23 will be described with reference to the flowchart shown in FIG.

[0232] In step ST141, the data recording / reproducing apparatus 1 or the host PC determines whether the data recorded in the program area of the optical disc 25 has been finalized. If not finalized, the process proceeds to step ST142, and if finalized, the process proceeds to step ST143.

In step ST142, the data recording / reproducing apparatus 1 or the host PC determines whether or not the unfinalized data should be finalized without being additionally recordable. If additional writing is not possible and finalization is performed, the process proceeds to step ST144, and if additional writing is not possible and finalization is not performed, the process proceeds to step ST145.

In step ST143, the data recording / reproducing apparatus 1 or the host PC determines whether the finalized data recorded on the optical disc 25 is finalized with no additional recording. If additional recording is not possible and it has not been finalized, step ST
145. If the additional recording is not possible and the finalization is completed, it means that the visible image is ready to be recorded on the outer peripheral side of the lead-out information area, and the process is performed in step S.
Proceed to T146.

At step ST144, the data recording / reproducing apparatus 1 or the host PC finalizes the data recorded on the optical disc 25 by making the data unrecordable and finalizes the lead-in information area and the lead-out information area to close the session. To do.

As a result, it is ready to record a visible image on the outer peripheral side of the lead-out information area of the data recorded in the program area of the optical disc 25.

At step ST145, the data recording / reproducing apparatus 1 or the host PC finalizes the data recorded on the optical disc 25 so that the data can be additionally recorded, and thereafter, a track having a predetermined data amount, for example, visible image data is recorded. Generate a track and finalize it with no appending.

As a result, the optical disc 25, for example,
It is ready to record the visible image on the outer circumference side of the lead-out information area of the track on which the visible image data is recorded.

At step ST146, the data recording / reproducing apparatus 1 or the host PC records a visible image.

The visible image recording process in step ST146 will be described with reference to the flowchart shown in FIG.

First, the timing reference for recording a visible image on the optical disc 25 will be described. The reference of the recording timing of the optical disk 25 is determined based on the FG pulse signal (hereinafter referred to as FG pulse) output from the spindle motor 17. The spindle motor 17 outputs Z pulses during one rotation. Therefore, the count from 0 to Z-1 is performed during one rotation, and the time when the count of this FG pulse becomes 0 is used as the reference of the recording timing. The FG pulse is counted by the CPU 19.

Since the FG pulses are output at equal intervals, it can be considered that the recording area of the optical disk 25 is divided into 0 to Z-1 by Z FG pulses as shown in FIG.

Let r be a predetermined radial distance from the center of the optical disc 25, and x be the number of divisions of the circumference of the optical disc 25.
Assuming that the value indicating the number of turns of the track is y, the radial direction of the optical disc 25 is the Y direction, and the rotation direction of the optical disc 25 is the X direction, (2πr [cm] / x) × (1.6 [μm]
A coordinate space as shown in FIG. 33 can be set on the optical disc 25 with the area calculated by xy) as one point (1 dot). Note that 1.6 [μm] is the track pitch. FIG. 34 is an enlarged view of FIG. 33.
Here, as an example, the FG pulses are divided into seven in the X direction.

For example, assuming that one character data is converted into m × m matrix visual image data, the optical disc 25
Consider the case of recording this visual image data in a size of 1 cm × 1 cm above.

In this case, the values of x and y are respectively x = m
・ 2πr [cm], y = 1 / (1.6 [μm] · m). Also, let T be the time taken to make one round at the radius r position,
Time t for laser irradiation when forming 1 dot
Is t = T / (m · 2πr).

The time T for one round of the radius r position varies depending on the rotation speed of the spindle motor 17 and is therefore measured and updated for each round. The value of the time T increases toward the outer circumference of the optical disc 25.

In step ST151, the data recording / reproducing apparatus 1 causes the visual image generation unit 24 to convert the visible image data into visual image data. Considering that the character A is recorded on the optical disc 25 in a visible state, the visual image data is as shown in FIG. 35, for example. The visual image data shown in FIG.
It is bitmap data of 7 rows × 7 columns, where a portion where data exists is “1” and a portion where data does not exist is “0”. For example, the laser irradiation is turned on at a position where data is “1”, and the laser irradiation is turned off at a position where data is “0”.

In step ST152, the data recording / reproducing apparatus 1 seeks to the recording start address which is the address of the optical disc 25 at the position where the recording of the converted visual image data is started.

At step ST153, the CPU 19 of the data recording / reproducing apparatus 1 initializes a track number counter for counting the number of rounds of the track to zero. Also, the CPU 19 determines that the track is 1 do in the Y direction.
The value R of the Y-direction dot counter that counts the number of revolutions by t is also initialized to 0.

In step ST154, the CPU 19
Stands by until the count number of FG pulses becomes Z-1.

In step ST155, the CPU 19
Starts the timer 1 of the CPU 19 in response to the count number of the FG pulse becoming Z-1. The timer 1 is used to measure the time T for one round of the half-period r position described above.

In step ST156, the CPU 19
Stands by until the count of the FG pulse becomes 0.

In step ST157, the CPU 19
Responds to the count of FG pulse becoming 0,
Increment the track number counter value by one.

In step ST158, the CPU 19
Indicates that the value of the Y-direction dot counter is set to 1 when the value of the track number counter reaches 1 dot.
Increment by one. The value of the track number counter is reset to 0 in response to the count up of the Y direction dot counter.

In step ST159, the CPU 19
Determines whether the value of the Y-direction dot counter is the maximum value of the rows of the visual image data matrix, that is, m in the case of an m × m matrix. For example, 7 × 7 shown in FIG.
In the case of the matrix visual image data, it is determined whether or not 7.

For example, when the visual image data is an m × m matrix, the fact that the value of the Y-direction dot counter that is incremented by going around the track y has become m means that the data recording / reproducing apparatus 1 has a visual appearance. This means that all image data has been recorded. Therefore, when the value of the Y direction dot counter reaches m, the process ends and m
When it is the following, the process proceeds to step ST160.

In step ST160, the CPU 19
Stops the timer 1 in response to the count of the FG pulse becoming 0 and the value of the track number counter being incremented by 1, and the measurement time up to this point makes one round at the position of radius r. Let time T.

In step ST161, the CPU 19
Loads the visual image data converted from the visible image data in step ST151 from the visual image data generation unit 24. The matrix of visual image data is (A
By when x, By) is set to 1.

In step ST162, the CP
U19 loads the visual image data read in step ST161 with (Ax, Bx) = (m−R, By) when the visual image data matrix is m × m. For example, as shown in FIG. 35, the visual image data is a 7 × 7 matrix and the value of the Y direction dot counter is R =
0 and By = 1, (Ax, Bx) = (7,
Load 1).

In step ST163, the CPU 19
Starts timer 1 and timer 2. The timer 2 measures the laser irradiation time t = T / (m · 2πr).

In step ST164, the CPU 19
Controls the OP unit 10 to turn off the laser when (Ax, Bx) of the loaded visual image data is 0 and turn on the laser when (Ax, Bx) is 1.

In step ST165, the CPU 19
Stands by until the laser irradiation time t reaches T / (m · 2πr).

In step ST166, the CPU 19
Stops the timer of the CPU 2 when the laser irradiation time becomes t = T / (m · 2πr).

In step ST167, the CPU 19
Increments the value of By by 1.

At step ST168, the CPU 19
If the matrix of visual image data is m × m,
It is determined whether By is larger than m, and if it is smaller, the process returns to step ST162, and if it is larger, the process proceeds to step ST19.

In step ST169, the CPU 19
Stands by until the count of FG pulses returns again.

In step ST170, the timer 1 is stopped in response to the count of the FG pulse becoming 0 again, and the measurement time up to this point is set to 1 at the position of the radius r.
Let the time T go around.

In step ST171, if all the visual image data has been recorded, the process proceeds to step S154.
The process is returned to step ST161 when not all are recorded.

In this way, the data recording / reproducing apparatus 1
A visible image can be recorded on the optical disc 25 by controlling the recording timing based on the FG pulse.

In the above description, when recording character data, one character data can be recorded corresponding to the number of FG pulses, but the present invention is not limited to this. It is possible to record a plurality of characters with one FG pulse or one character with a plurality of FG pulses.

Although the coordinate space is defined by using the FG pulse in the above description, the coordinate space can be defined by using the address as a reference.

For example, CLV (Constant) that keeps the relative velocity (linear velocity) of the read head to the track constant.
In the case of Linear Velocity method, the length of 1 frame
Since the linear velocity is fixed, it is possible to calculate where other addresses are located at coordinate positions by setting a reference address.

For example, if data is recorded from the address A as shown in FIG. 36, the base point coordinates will be sync. Therefore, the coordinate one above the sync position of the address A in the y direction is the position indicated by the diagonal line of the address A + 3, and can be calculated.

A matrix is used as the visual image data to define a coordinate space as shown in FIG. 33, which is effective for simplifying the processing. However, since the optical disk 25 has a circular shape, the X-direction component of the outer peripheral track is widened, and the balance may be poor in the visible image.

Therefore, by preparing the fan-shaped visible image data as shown in FIG. 37 and defining the coordinate space in which the dot lengths in the X direction are the same, as shown in FIG. 38,
It is possible to avoid imbalance.

Furthermore, as shown in FIG. 39, position coordinates are defined for the optical disc 25, and the coordinates and information about the coordinates (for example, information of filling (laser on), not painting (laser off), and the like). ) Can also be sent to record a visible image. When the visible image data is bitmap data, the visible image can be recorded at any position on the optical disc 25.

For example, as shown in FIG. 39, coordinates (a,
Since (a) is between tracks, it is not filled (laser off), coordinates (a, a + 1), coordinates (a +
1, a) and the coordinates (a + 1, a + 1) are in the track, so it is said to be filled (laser on).

Also, the visible image can be recorded as one track. When data is recorded as a track, it is necessary to be finalized in a state in which additional recording is possible. Therefore, in the above-described flowchart shown in FIG. 27, the step of disabling additional recording is omitted.
When handling a visible image as a track, it is necessary to record the start address and end address of the track in the PMA.

Further, when recording as a track,
It is also necessary to record TDB (PAUSE part). This TD
In B, visible image data indicating what kind of data the visible image recorded on the optical disk 25 is may be recorded. The data recording / reproducing apparatus 1 can recognize that it is a visible clothing mail track by reading this TDB. When the host PC requests access to the track on which the visible image is recorded, an error is returned.

In order to avoid the output of an error by a read request from the host PC, the visible image is made visible by the difference in the contents of the data to be recorded, instead of expressing the visible image by turning the laser on and off. To record. For example, the physically visible state is different between the portion in which 0 data is recorded and the portion in which all 1 data is recorded. Taking advantage of this property, recording a visible image results in orange
The physical characteristics and format characteristics conforming to the book can be satisfied, and the operation of the data recording / reproducing apparatus 1 does not cause an error even when handled as a track.

When the visible image is recorded as a track on the optical disc 25 in this manner, it is possible to record a normal data track after recording the visible image.

When a CD-RW is used as the optical disk 25, it is possible to freely erase the recorded visible image, and a new visible image or normal data can be recorded in the erased area. it can.

Furthermore, in the above description, the character image recorded on the optical disk 25 is recorded so that it can be recognized as a character when viewed from the center of the optical disk 25, but the present invention is not limited to this. Alternatively, the character image may be rotated by, for example, 90 degrees or 180 degrees and recorded so as to be recognized as the character image.

In the above description, the visual image data is treated as an m × m matrix, but it may be an m × n matrix according to the aspect ratio of the visual image data.

In the case of recording the visual image data shown in FIG. 35, for example, the laser irradiation is turned on at a position where data is “1” and the laser is turned on where data is “0”. Although it has been described that the irradiation is turned off, conversely, the laser irradiation may be turned off at a place where data is “1” and the laser irradiation may be turned on at a place where data is “0”.

When recording visual image data,
Especially when recording characters etc., in order to make it easy to find the beginning of the recorded characters, for example, FG
By setting a certain specific section of the Z-divided circumference with pulses to "1" and turning on the laser irradiation, or vice versa, providing a section with "0" and turning off the laser irradiation, You may make Sync.

[0287]

As described above in detail, since the optical recording medium according to the present invention has a visual image formed by a plurality of recording marks, the optical recording medium is scratched or dust is attached. Since the visual image does not disappear even if it is scratched or rubbed, the optical recording medium can be identified at any time, and even if a visible visual image is formed, the eccentricity of the disc does not occur. Can be reproduced and recorded at high speed, and if the optical recording medium is capable of recording and erasing data, it is possible to form and erase a visual image that can be viewed any number of times. Since the image is formed in the data unrecorded area, there is no problem in compatibility with the existing format.

In addition, the optical recording medium according to the present invention can record a visible visual image by forming a new track on the optical recording medium that is recordable and finalized and finalizing not recordable. .

Further, by recording data for specifying the visible visual image on the formed track, what visible visual image is recorded in which recording area on the optical recording medium, or recording It is possible to provide the user with information such as whether or not it has been done.

Furthermore, the optical recording medium according to the present invention is
A visible visual image can be recorded on the optical recording medium as a track, and the optical recording medium can be used by slightly expanding the existing format.

As described in detail above, since the recording apparatus according to the present invention forms a visible visual image on the optical recording medium with a plurality of recording marks, the optical recording medium is scratched or dust is attached. The optical image can be identified at any time because the visual image does not disappear even if it is rubbed or rubbed.
Further, even if a visible visual image is formed, the eccentricity of the disc does not occur, so that the recorded data can be reproduced and recorded at high speed, and the optical recording medium can record and erase the data. Wherever possible, you can create and erase visual images that are visible many times, and
Since a visible visual image is formed in the data unrecorded area, there is no problem in compatibility with the existing format.

Further, the recording apparatus according to the present invention can record a visible visual image by forming a new track on the optical recording medium that can be additionally recorded and finalized and finalizing it without being additionally recordable.

Further, by recording data for specifying the above-mentioned visible visual image on the formed track, what visible visual image is recorded in which recording area is recorded on the optical recording medium. It is possible to provide the user with information such as whether or not it is available.

Furthermore, the recording apparatus according to the present invention can record a visible visual image on the optical recording medium as a track, and can use the optical recording medium by slightly expanding the existing format. You can

Further, since the recording method according to the present invention forms a visible image on the optical recording medium with a plurality of recording marks, the optical recording medium is scratched, dust is attached, or is rubbed. Since the visual image does not disappear, the optical recording medium can be identified at any time, and even if a visible visual image is formed, the eccentricity of the disc does not occur, so the recorded data can be reproduced and recorded at high speed. In addition, when the optical recording medium can record and erase data, it is possible to form and erase a visible visual image any number of times. Therefore, there is no problem in compatibility with the current format.

[Brief description of drawings]

FIG. 1 is a block diagram of a data recording / reproducing apparatus to which the present invention is applied.

FIG. 2 is a schematic diagram showing a file structure of an optical recording medium to which the present invention is applied.

FIG. 3 is a diagram in which image data is converted into bitmap data.

FIG. 4 is a diagram in which data obtained by converting image data into bitmap data is converted into a visual image.

FIG. 5 is a diagram in which text data is converted into bitmap data.

FIG. 6 is a diagram in which data obtained by converting text data into bitmap data is converted into a visual image.

FIG. 7 is a diagram in which data obtained by converting image data into bitmap data is converted into a visual image by a plurality of types of conversion data.

FIG. 8 is a diagram showing a data string obtained by converting a visual image into a data string with a Sync mark added and combining the data strings.

FIG. 9 is a diagram in which combined data to which a Sync mark is added is converted into an output data string.

FIG. 10 is a block diagram of a system control unit of a data recording / reproducing apparatus to which the present invention is applied.

FIG. 11 is a flowchart showing an example of an operation of recording a visual image on an optical recording medium by the data recording / reproducing device to which the present invention is applied.

FIG. 12 is a schematic diagram showing a state of a recording area of an optical recording medium.

FIG. 13 is a schematic diagram showing a recording image.

FIG. 14 is a flowchart showing an example of an operation of recording a visual image on an optical disc by the data recording / reproducing apparatus to which the present invention has been applied.

FIG. 15 is a flowchart showing an example of an operation of recording a visual image on an optical disc by the data recording / reproducing apparatus to which the present invention has been applied.

FIG. 16 is a diagram showing the structure of a read-only optical recording medium to which the present invention has been applied.

FIG. 17 is a diagram showing a structure of an optical recording medium capable of additional recording to which the present invention is applied.

FIG. 18 is a diagram showing a structure of a recordable and erasable optical recording medium to which the present invention is applied.

FIG. 19 is a diagram in which a recording area of an optical recording medium to which the present invention is applied is divided into a data recording area and a visual image recording area.

FIG. 20 is a diagram showing an optical recording medium to which the present invention has been applied.

FIG. 21 is a diagram showing an optical recording medium to which the present invention has been applied.

FIG. 22 is a diagram of distortion correction when a visual image is recorded on an optical recording medium by the data recording / reproducing device to which the present invention is applied.

FIG. 23 is a first flowchart illustrating an operation of recording a visible image on an optical disc in a data recording / reproducing device to which the present invention has been applied.

FIG. 24 is a second flowchart explaining an operation when recording a visible image on an optical disc in the data recording / reproducing apparatus to which the present invention is applied.

FIG. 25 is a third flowchart illustrating an operation of recording a visible image on an optical disc in a data recording / reproducing device to which the present invention has been applied.

FIG. 26 is a fourth flowchart illustrating an operation of recording a visible image on an optical disc in a data recording / reproducing device to which the present invention has been applied.

FIG. 27 is a fifth flowchart explaining the operation of recording a visible image on an optical disc in the data recording / reproducing device to which the present invention is applied.

FIG. 28 is a sixth flowchart illustrating an operation of recording a visible image on an optical disc in a data recording / reproducing device to which the present invention has been applied.

FIG. 29 is a diagram for explaining an optical disc to which the present invention is applied and which has a dedicated visible image recording area.

FIG. 30 shows an optical disc to which the present invention is applied.
FIG. 11 is a diagram for explaining a case in which an optical disc having a dedicated visible image recording area shown in 9 is housed.

FIG. 31 shows a PMA (Prog of an optical disc to which the present invention is applied.
FIG. 3 is a diagram for explaining a ram memory area) area.

FIG. 32 is a diagram showing a state in which an optical disc is divided into Z sections using FG pulses in a data recording / reproducing apparatus to which the present invention has been applied.

FIG. 33 is a first diagram illustrating a state in which a coordinate space is formed on an optical disc by using an FG pulse in the data recording / reproducing device to which the present invention is applied.

FIG. 34 is a second diagram for explaining the manner in which the coordinate space is formed on the optical disc by using the FG pulse in the data recording / reproducing device to which the present invention is applied.

FIG. 35 is a diagram illustrating visual image data of a 7 × 7 matrix in the data recording / reproducing device to which the present invention has been applied.

FIG. 36 is a diagram showing an example of a coordinate space used when recording visual image data on an optical disc in the data recording / reproducing device to which the present invention is applied.

[Fig. 37] Fig. 37 is a diagram for describing visual image data in which data recorded on the outer peripheral side when recorded on an optical disc is corrected in a data recording / reproducing device to which the present invention has been applied.

FIG. 38 is a diagram showing an example of a coordinate space used when visual image data is recorded on an optical disc in the data recording / reproducing device to which the present invention is applied.

FIG. 39 is a diagram showing an example of a coordinate space used when visual image data is recorded on an optical disc in the data recording / reproducing apparatus to which the present invention is applied.

[Explanation of symbols]

1 data recording / reproducing apparatus, 10 OP section, 11 RF
IC, 12 system control unit, 13 spindle driver, 14 thread driver, 15 focus driver, 16 tracking driver, 17 spindle motor, 18 thread motor, 19 CPU, 20 flash ROM, 21 RAM, 22 interface, 23 external device, 24 vision Image generator, 25
Optical disc, 100 rotation cycle detection unit, 101 frequency division ratio setting unit, 102 Sync Timing generation unit, 1
03 Synchronous circuit unit, 104 Modulation method switching unit, 105
CIRC encode / decode On / Off control unit,
106 encoder-pattern generator, 107 selector, 108 write strategy, 109 write /
Lead LD

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Mori Sori             6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Soni             -Inside the corporation F-term (reference) 5D029 JA01 JA04 JB09 JB10 JB13                       JB14 JB47 PA01                 5D090 AA01 AA03 BB03 BB05 CC01                       CC16 FF24 GG36 HH08 LL01

Claims (54)

[Claims] 1. A recording layer, on which a recording mark is formed by irradiation with laser light, is laminated on a substrate, and a size which can be visually recognized by a plurality of recording marks at an arbitrary place or a predetermined place of the recording layer. An optical recording medium having a visual image formed thereon. 2. The optical recording medium according to claim 1, wherein the recording layer is made of a phase change inorganic material. 3. The optical recording medium according to claim 1, wherein the recording layer is an organic dye. 4. The optical recording medium according to claim 1, wherein one or more recording layers are laminated only in one direction of an upper direction or a lower direction of the substrate. 5. The optical recording medium according to claim 1, wherein one or more recording layers are laminated in both the upper and lower directions of the substrate. 6. The optical recording medium according to claim 1, wherein the visual image is formed by a recording mark corresponding to the intensity of the laser light. 7. The optical recording medium according to claim 1, wherein a predetermined recording modulation pattern is used when forming a recording mark by irradiating the laser beam. 8. The data for identifying the visible visual image is recorded at addresses on the inner and / or outer circumferences of the area where the visible visual image is formed. 1. The optical recording medium according to 1. 9. The optical recording medium according to claim 1, wherein the recording mark forming the visible image is formed by irradiating or not irradiating the laser beam. 10. The visible image is formed as a track at a predetermined location on the optical recording medium, and data specifying the visible image is recorded in a Pause area formed on the track. The optical recording medium according to claim 1, wherein: 11. The optical recording medium according to claim 10, wherein the recording mark forming the visible image is formed by the laser beam using a predetermined recording modulation pattern. 12. The optical recording medium according to claim 1, wherein the recording layer has at least a data recording region and a visible visual image recording region. 13. An ATIP which is absolute time information of the optical recording medium between the data recording area and the visible visual image recording area formed on the recording layer.
13. The optical recording medium according to claim 12, comprising an area in which (Absolute Time In Pre-groove) is not recorded. 14. An LPP, which is absolute time information of the optical recording medium, between the data recording area and the visible visual image recording area formed in the recording layer.
13. The optical recording medium according to claim 12, comprising an area where (Land Pre-Pit) is not recorded. 15. An ADIP which is absolute time information of the optical recording medium between the data recording area and the visible visual image recording area formed in the recording layer.
13. The optical recording medium according to claim 12, comprising an area in which (Address In Pre-groove) is not recorded. 16. The optical recording medium, in the case where the recording layer is provided with the area for recording the visual image, a case formed of a transparent material so that the area for recording the visual image can be confirmed from the outside. The optical recording medium according to claim 12, which is housed. 17. The recording medium according to claim 12, wherein character data and management data of the optical recording medium are recorded in the visible image recording area. 18. The optical recording medium according to claim 17, wherein the management data is recorded as a bar code. 19. The recording mark is formed by irradiating laser light of different intensities on the data recording area and the visible visual image recording area. Optical recording medium. 20. The optical recording medium according to claim 12, wherein the visual image is formed by recording marks corresponding to the intensity of the laser light. 21. The optical recording medium according to claim 12, wherein a predetermined recording modulation pattern is used when forming a recording mark by irradiating the laser beam. 22. An optical recording medium, wherein a thermosensitive layer that reacts with laser light is laminated on a substrate, and the thermosensitive layer exhibits a visible reaction when irradiated with laser light. 23. The optical recording medium according to claim 22, wherein a plurality of the heat sensitive layers are laminated on the substrate. 24. The optical recording medium according to claim 22, wherein a recording layer on which a recording mark is formed by irradiating a laser beam is laminated on the substrate. 25. The heat-sensitive layer is responsive to a laser beam having a first wavelength, and the recording layer is formed with a recording mark by irradiation with a laser beam having a second wavelength different from the first wavelength. 25. The optical recording medium according to claim 24, wherein: 26. The optical recording medium according to claim 24, wherein the recording layer is made of a phase change inorganic material. 27. The optical recording medium according to claim 24, wherein the recording layer is an organic dye. 28. The optical recording medium according to claim 24, wherein one or more recording layers are laminated only in one direction of the upper direction or the lower direction of the substrate. 29. The optical recording medium according to claim 24, wherein one or more recording layers are laminated in both the upper direction and the lower direction of the substrate. 30. A recording layer, on which a recording mark is formed by irradiation of laser light, is laminated on a substrate, and in the recording layer, at least a data recording area and a visible visual image recording area are formed. An optical recording medium characterized by the fact that it is formed. 31. The optical recording medium according to claim 30, wherein the recording layer is a phase change inorganic material. 32. The optical recording medium according to claim 30, wherein the recording layer is an organic dye. 33. The optical recording medium according to claim 30, wherein one or more of the recording layers are laminated only in one direction of an upper direction or a lower direction of the substrate. 34. The optical recording medium according to claim 30, wherein one or more recording layers are laminated in both an upper direction and a lower direction of the substrate. 35. The optical recording medium according to claim 30, wherein the visual image is formed by a recording mark corresponding to the intensity of the laser light. 36. The recording mark is formed in the data recording area and the visible visual image recording area by irradiation with laser light having the same modulation pattern. Optical recording medium. 37. The recording mark is formed in the data recording area and the visually recognizable visual image recording area by irradiation with laser light having different modulation patterns. Optical recording medium. 38. A visual image converted by the visual image data converting means, comprising laser light irradiating means for irradiating the optical recording medium with laser light and visual image data converting means for converting arbitrary data into visual image data. Data is supplied to the laser light irradiating means, and a visual image of a size that can be visually observed is formed by a plurality of recording marks on the optical recording medium at an arbitrary location or a predetermined location by the laser light radiating means. Recording device. 39. The optical recording medium is an optical disc-shaped recording medium, and a visible image is formed on the optical disc-shaped recording medium by a plurality of recording marks by the laser light irradiation means. 38. The recording device according to 38. 40. The optical recording medium is an optical card-shaped recording medium, and a visible image is formed on the optical card-shaped recording medium by a plurality of recording marks by the laser beam irradiation means. 39. The recording device according to claim 38. 41. The optical recording medium comprises a recording layer made of a phase change inorganic material laminated, and a visible image is formed on the recording layer by a plurality of recording marks by the laser beam irradiation means. 39. The recording device according to claim 38, which is characterized in that: 42. The optical recording medium is characterized in that a recording layer which is an organic dye is laminated, and a visible image is formed on the recording layer by a plurality of recording marks by the laser beam irradiation means. 39. The recording device according to claim 38. 43. The recording device according to claim 38, wherein the data is character data, picture data, photographic data, and / or drawing data, and is converted into a visual image by the visual image data converting means. . 44. The data according to claim 38, which is content information corresponding to the data recorded on the optical recording medium, and is converted into a visual image by the visual image data converting means. Recording device. 45. A pulse signal generating means for generating a predetermined pulse signal in accordance with an operation of a motor for rotating the optical recording medium, and a position where the pulse signal generated by the pulse signal generating means is formed on the optical recording medium. 39. The recording apparatus according to claim 38, further comprising: a control unit that controls the laser light irradiation unit so as to form the visually recognizable visual image based on coordinates. 46. The recording apparatus according to claim 45, wherein the visual image conversion means converts the arbitrary data into visual image data of m × m (m is a positive integer) matrix. 47. The visual image conversion means converts the arbitrary data into visual image data in which the expansion of the recording range in the outer peripheral direction of the recording layer of the optical recording medium is corrected. The recording device described. 48. When the optical recording medium is data-writable and finalized, track generation means for generating a predetermined track, and finalizing means for finalizing the track generated by the track generation means as data-unrecordable. 39. The recording apparatus according to claim 38, wherein the laser light irradiating means forms the visible visual image after the track finalized by the finalizing means. 49. The recording according to claim 48, wherein the track generated by the track generating means has data for recording the visible visual image formed after the finalized track. apparatus. 50. The recording mark forming the visible visual image turns on or off the laser beam irradiation means.
39. The recording apparatus according to claim 38, further comprising control means for controlling the laser light irradiation means so as to be formed by the above. 51. Track generation means having a track in the area of the recording medium on which the visible image is formed by the laser light irradiation means, the laser light irradiation means being generated by the track generation means. 39. The recording apparatus according to claim 38, wherein data specifying the visible visual image is recorded in a Pause area formed on the formed track. 52. A control means is provided for controlling the laser light irradiation means so that the recording mark forming the visible visual image is formed by the laser light irradiation means using a predetermined recording modulation pattern. The recording apparatus according to claim 51. 53. The detection means for detecting an RF signal recorded in a recording area of the optical recording medium, and the RF signal detected by the detecting means records the visible visual image in the recording area. 39. The recording apparatus according to claim 38, further comprising: a determining unit that determines that the recording medium is in the state of being. 54. Visual image data is generated from arbitrary data, and a laser beam corresponding to the visual image data is irradiated to an arbitrary location or a predetermined location of the optical recording medium to form a visual image of a visible size. A recording method comprising forming a plurality of recording marks.