TW200301464A - Method and device for recording information - Google Patents

Abstract

An information recording device for recording information data into a plurality of recording areas of a writable disk by recording means under mutually different recording conditions. The device includes storage means for storing the information data to be recorded onto the disk. The device transfers the information data stored in the storage means to a buffer memory to save the data therein, sequentially retrieves the information data saved in the buffer memory, allows the recording means to record the retrieved information data onto the disk, and changes a recording condition of the recording means after a buffer under-run has occurred in the buffer memory.

Description

" 20030K64 发明, description of the invention (the description of the invention should state: the technical field of the invention, the prior art's content, implementation, and a brief description of the drawings) I: the technical field of the sun and moon households] Field of the invention The present invention The invention relates to a method and a device for recording information data into the recording area 5 of a writable disc by using a recording device under mutually different recording conditions.

L mT invention background

At present, optical discs such as CD-RS, CD-RWs, DVD-Rs, DVS-RWs, and DVD-RAMs are known as informational data writable discs. In addition, information recording devices, such as disc recorders, that allow general users to record arbitrary information data on such discs are already available.

Since data is recorded on a recordable disc by 11 information recording devices, pre-recorded discs having different recording characteristics are produced. This is caused by the difference in recording performance between the Gongxun recording devices or the characteristics of the disc itself. On the other hand, a disc player like a DVD player for playing a disc needs to play a pre-recorded disc with different recording characteristics. Therefore, it is necessary for a manufacturer of a disc-type disc player to test a standard for evaluating the reproduction performance of a disc player. However, in order to make-test discs, it is necessary to use a recording device such as a DVD writing 20 to record information materials into several recording areas i or under different recording conditions. Because of J: b, it is difficult to control the recording of the recording device. I: Contents of the invention 30 Continued pages (Notes and use of continuation pages when the description pages of the invention are insufficient) 6 I. Summary of the Invention Description of the Invention Continuation Pages Summary of the Invention — The purpose of this ramification is to provide a use The recording device is also a method and device for recording information by recording information data into several recording areas under mutually different recording conditions. 5 The invention provides-a recording device for recording information to a plurality of recording areas of a writable disc under different conditions 2 using a recording device. The device includes: Storage device of information data recorded on the disc; information record control device, which is used to transfer the information data stored in the storage device to a buffer 10 body, which can store the information data therein , And then continuously access the information data stored in the buffer memory, and allow the recording device to record the accessed information data on the disc; A recording condition changing device that changes a recording condition of the recording device after appearing in the buffer memory. 15 20 The present invention provides a Γ recording method for using a recording device to record information materials into a plurality of recordable areas under different recording conditions. The method includes the following steps: transferring the information data previously stored in the storage device to—the buffer memory, which can store the data therein, and continuously accessing the data stored in the buffer memory. The information is recorded to the memory that has appeared in the buffer memory; the recording device is allowed to take the disc and the recording condition of the recording device is changed after a buffer is underloaded. Structured block

Figure 1 is to describe the information recording device of the present invention. Continued page 0 (inventive description page is not enough, please note and use the drawing page) 200301464 Invention description continued soft, invention description diagram; Brother 2 picture is for depiction The block diagram of the structure of the ld driver in the device in Figure i; '° Figure 3 is a block diagram depicting the structure of the green-analog processing circuit; Figure 5 帛 4 is for the trace edge—a representation—by the front An illustration of the waveform of the LPP component detected by the pit detection circuit. Figure 5 is a drawing depicting each area on the recording surface of an optical disc. Figure 6 is a drawing depicting Figure 1. Flow chart of the operation of the device; 10 Figure 7 is a diagram of the recording conditions and target values of DVD-R. Figure 8 is a diagram of the recording conditions and target values of DVD-RW. Figure 9 is for Fig. 15 depicting the recording conditions and target values of _ Qing Nuo; Fig. 10 is a flowchart specifically depicting the recording operation in the flowchart of Fig. 6; Figs. 11A to 11C are depicting the same as a DVD_R Graphical representation of write pulse waveforms related to recorded data and changes in each power; 20th 12A to 12 Figure D is a diagram depicting the horse-in pulse waveform and the change in each power related to the recorded data of a DVD_RW. Figure 13 is a block diagram depicting another embodiment of the present invention; and Figure 14 is Flow chart for describing the recording operation of the device in Figure 13 (continued on page 0 when the description page is not enough, please note and use it) 玖, description page of the description of the invention [implementation] S- Better Detailed description of the embodiments A preferred embodiment of the present invention will be described below in conjunction with the drawings. Fig. 1 depicts a recording device capable of recording information on an optical disc such as DVD_R or DVD-RW. This recording device not only has a recording function, but also a reproduction function, and, as shown in Fig. 丨, it includes a detector 1, an analog processing circuit 2, a DVD decoder 3, and an LPP (Land Pre-pit). Point (iand pre_pit) decoder 4, an LD (laser diode) driver 5, a strategy generating circuit 6, a DVD encoder 7, a buffer memory, a CPU 9, a SCSI (small) Computer system interface) interface 10, and a system controller U. The components other than the system controller n constitute a DVD writer. The delta detection wave, as shown in FIG. 2, is provided with a semiconductor laser device 21 for emitting a laser beam, and a quarter (f0ub spHt) optical detection system (in FIG. 3). (Labeled by reference numeral 22), in which the semiconductor laser device 21 emits a laser beam to an optical disc 13 that is rotationally driven by a spindle motor 12, and the detector 1 transmits the emitted laser beam The reflected light beam is directed to the quarter optical detector 22. The portion of the laser beam emitted from the semiconductor laser device 21 is supplied to a front monitor 23 on the way to the optical disc 13. The quarter optical detector 22 has, as shown in FIG. 3, a photoelectric conversion device having four photoelectric conversion devices in four directions along a tangent to an information recording track of the optical disc 13 and On the 0th continuation page of this recording track (note that the invention description page is not enough, please note and use the continuation page) 20030K64 玖, invention description lion description continuation page light split surfaces 22a to 22d split in the radial direction perpendicular to the tangent line . By the individual light receiving surfaces 22a to 22d, the photoelectric conversion device receives the reflected light from the information reading point of the optical disc 13, and converts the light intensity into individual electrical signals, which can be output to the analog processing 5 The circuit 2 serves as a light signal Ra-Rd. The analog processing circuit 2 is provided with adders 31 to 33 and a pre-pit detection circuit 34. The adder 31 adds the received light signals rm0 Rd 'and the adder 32 adds the received light signals Can and Rc. In other words, the adder 31 adds the received light signals Ra and Rd obtained by the light received by the light receiving surfaces 22a and 22d of the quarter light detector 10 to the light receiving surfaces 22a and 22d, respectively. The added received light signals Ra + d. The adder 32 adds the received light signals Rc obtained by the light received by the light receiving surfaces 22b # D22e of the quartered optical sensor 22, respectively, to output an added received light signal 15 Rb. + C. The adder 33 adds the individual φ output signals Ra + d and U from the adders 31 and 32. The output signal of the adder 33 is an RF signal for the mouthpiece fL 5 tiger ', and is supplied to the 0 · decoder 3. The excitation decoder 3 converts the RF signal into a digital signal · 20, and then demodulates the digital signal by decompression, which can be output repeatedly to generate a signal. The pre-pit detection circuit 34 calculates the difference between the adders "and the individual output signals Ra + d # n Rb + c. It can generate a radial push-pull Λ said PP 'as in the fourth As shown in the figure, and then using a critical page of 0 (continued, no confusion, _ side uses a continuation page), invention description invention description continued page pressure TH to detect the formation of the optical disc The land set pit (LPP) on the land track of slice 13 is used to convert the radial push-pull signal pp into a binary signal as a pre-pit detection signal PPd, which is supplied to the Lpp decoder. 4. Yanhai LPP decoder 4 puts the detector 1 there in response to

The pit detection signal PPD is set to output the address of the position where the optical disc U is irradiated with the laser beam to a common bus 14 as data. The DVD decoder 3, the LPP decoder 4, the DVD encoder 7, the CPU 9, and the SCSI interface 10 are connected to the bus 14. The scsi interface® is an interface for connecting the system controller n to the bus 14. The system controller u ^ is, for example, an

Personal computer and readablely stored in a proper file format the image data intended to be recorded on the optical disc U as test data

Internal hard disk (not shown). #When data is recorded on the optical disc U, the system controller does not go through the SCSI interface. And the bus 14 to supply a record start command to the cpu 9 and read the image data from the hard disk via the "M interface 10, the bus and the DVD encoder 7" and transfer it to The buffer memory 8 is stored therein.

When recording data, the DVD encoder 7 sequentially reads the stored data from the buffer memory 8, encodes the data, and generates recording data, and supplies it to the strategy generating circuit 6. The strategy generating circuit 6 can generate Z-write pulses and -erase pulses according to each __bit of the recorded data to form-mark on the optical disc U. This code conversion, as described later, provides a page corresponding to 0 of the record data (__ 颀 is not concealed, continuation pages are used concealed) 发明 Description of the invention Description of the invention Continuation page or "0" Conversion. When the optical disc 13 is a DVD-RW, write pulses and erase pulses are generated, while in the case of DVD-R, only write pulses are generated. Each pulse train generated by the strategy generating circuit 6 is supplied to the LD driver 5 in turn. The LD driver 5 is a circuit for selectively supplying a recording current, a bias current, an erasing current, and a regenerative current to the semiconductor laser device 21. The LD driver 5, as shown in FIG. 2, is provided with an interface 41, D / A converters 42 to 44, current sources 45 to 47, switches 48 to 50, a buffer amplifier 51, and an S / Η. (Sampling_and-hold) circuit 52, an APC (Automatic Power Controller) 53, and a V / I converter 54 ° The interface circuit 41 selectively sets the power level for the digital data output by the CPU 9. The quasi-information is supplied to these D / A converters 42 to 44. The individual D / A converters 42 to 44 convert the supplied digital data into analog values and supply them to the associated current sources 45 to 47. These current sources 45 to 47 are capable of outputting a current having a level specified at an individual analog value. The current source 45 is for outputting the bias current, and its output terminal is connected to the switch 48. The switch 48 is a transfer switch, and selectively connects the output of the current source 45 or the output of the V / I converter 至 to the anode of the semiconductor laser device 21. When the output of the current source β is selected by the switch 48, the bias current, which is the output current of the current source 45, is supplied to the semiconductor laser device. When the wheel output system of the VA converter 54 is selected, the regenerative current, which is the output current of the V / I converter 54, is supplied to the semiconductor laser device. _, With note of suspected stomach), 12 玖, invention description set 21. The current source 46 is for L- erasing the output of the electric k, and the switch is connected to the output of the current source 46. The switch 49 is for one

ON / OFF switch, and at ON position, it connects the output of the current source 46 to the anode of the semiconductor laser 21, and transfers the supply of the erasing power k to the semiconductor laser. ^ Set 21. The current source 47 is for the output of the recording current, and the on / off switch 50 is connected to the 10 output terminal of the current source 47. The switch 50 is a _〇N / 〇FF switch, and when the current is off, the input of the current source 47 is connected to the anode of the semiconductor laser device 21 and the recording current is transferred to the semiconductor laser. Shooting i21. In this structure, the cathode of the semiconductor laser device 21 is grounded. 々 上 所 $ 4 刖 & Sight 23 Receives from the Semiconductor Laser Device 15 20

21-A part of the laser beam emitted, and a front monitor signal representing an electrical signal corresponding to the level of the received light intensity. The S / H circuit 52 is connected to the output terminal of the front monitor 23 via the buffer amplifier 51. The S / H circuit 52 samples at specific time intervals and holds the front monitor signal amplified by the buffer put A || 51. The hold signal of the provincial S / Η circuit 52 is supplied to the Apc magic. The APC 53 generates a voltage signal to the V / I converter 54 so that the level of the monitor signal before being held in the circuit 52 becomes the reference level. The V / I conversion state 54 outputs a regenerative current corresponding to a voltage signal supplied from the ApC 53. In order to write data to or read data from the optical disc 13, a servo circuit 15 for servo control like tracking servo, focus servo, stage servo, or tilt servo is used. Set to this _ time page (Inventory description page is not enough, please note and make the brain page) 13 发明, invention description recording device. The servo circuit 15 responds to one from the order to control the one from where the detector "puts the data" to the position of "叩." The optical disc u, as shown in Fig. 5, has The edge-to-outer edge sequence includes-PCA (electricity measurement area), _ ^ field), a lead-in area, a data area, and a lead-out area data. The PCA and RMA are called _R information area Among them, the PCA is an area for writing test data when determining the recording power of a laser beam, and the RMA is for writing management data RMD related to the transfer operation. Then, the operation of the information recording device constructed as described above will describe the case where the test data is recorded on the optical disc 13. 15 Hundred First 'as shown in Figure 6' the system controls The device u sets recording conditions (step S1). These recording conditions are assigned to several recording areas (recording area ^, recording area 2, ..., recording area MAe), and the data area of the optical frame 20 13 has been Divided into such recording areas. If the optical disc I3 is In the case of a DVD-R, as shown in FIG. 7, an address defining each of the plurality of recording areas, an elapsed time corresponding to the bit, a recording power, and a bias voltage. The power system is set as a recording condition: the ratio of the recorded power to the bias power is the same for each of the plurality of recording areas. If the optical disc 3 is RW, a definition An address of each of the plurality of recording areas, an elapsed time corresponding to the address, a recording power, an erasing power, and a second bias power system are set as recording conditions. The recording power and the erasing Divide by 0: man pages (note when the invention description page is inadequate, please note and use the continuation page) ★. If the optical disc 13 is a DVD-RW, the partial power is the same for all the recording areas in the case of FIG. 8. However, as shown in FIG. 9, it is different Preferential power can be assigned to each of the multiple, pro-regions. In the case of FIG. 9, the ratio of the recording power, the erasing power, and the partial power is the same for each of the plurality of recording areas. Each of FIGS. 7 to 9 Among them, the PI error rank has a value that changes depending on the recorded power, the partial waste power, and the erasing power of the DVD-RW. The recording condition of Hai et al. Is in response to user input using a keyboard Operation or manual selection from data of pre-recorded recording conditions. In the attack, the recording conditions are different for each of the plurality of recording areas. 15 In these recording conditions have been After setting, the operation for starting the recording is entered by the keyboard or mouse as described above (step s2), and then

The system controller 11 starts the recording operation (step S3). As shown in FIG. 10, the recording area MA is set to 41 during the recording operation (step S21), and then the recording bar of the recording area MA passes through the following interface 1Q and the bus. M is notified from 20 to the 9 (step S22). The recording area MA is one of the several recording areas described above in the order of addresses. The system controls n n to read from the hard__ As the image data of the information data to be recorded, the image data is transferred to the buffer memory through the SCSI interface 10, the bus μ, and the D gas encoder 7. Continued pages (Please note and use the continuation page when using it.) 玖, description of the invention Description of the continuation page 8 (step S23) ° The transfer of the image data to the buffer memory 8 is performed in block units, and the The buffer memory 8 holds the transferred image data. Although the amount of data held in the buffer memory 8 is reduced when the image data is read from the buffer memory 8 by the DVD encoder 7 , The image data from the system controller n is in step S The 23 system is appropriately transferred, and it continues until the data is completely written into a recording area. After step S23 is performed, the system controller 丨 丨 via the SCSI interface 10 and the bus 14 A write command is supplied to the CPU 9 (step S24). The CPU 9 starts the operation of the DVD writer in response to the write command. In particular, according to the writing position on the optical disc 13 The address information obtained by the detector 1 from the LPP decoder 4 via the bus 14 and the writing position of the detector 1 is moved to the recording area MA of the data area. Then, corresponding to the record The power level information of the recording power, the erasing power, and the bias power in the area MA is output to the LD drive 5. This is the case where the optical disc 13 is a rewritable optical disc. Or When the optical disc 13 is a write-once optical disc, the power level information of the recording power and the bias power corresponding to the recording area MA is rolled out to the LD drive 5, where, The index of the erasing power is 0 mW. In this In the LD driver 5, the output bias current value of the current source 45, the current erasing erasure current value of the current source 47, and the output current value of the current source 47 are tied according to the power level information Λ. The transfer switch 48 is switched to the side 13 of the current source (continued from the lion's turn, but if the note is displayed) 玖, invention description, continuation page of the invention description, thereby causing the bias current from The current source 45 flows to the semiconductor laser device 21. The CPU 9 also instructs the DVD encoder 7 to read image data. The DVD encoder 7 sequentially reads and encodes the data held in the buffer memory 8 Image data, and then supply the final data to the strategy generation circuit 6 as recorded data. The strategy generating circuit 6 converts the recorded data into codes and generates erase and write pulses. The switch 49 is turned on in response to the erase pulse, and the erase current from the current source 46 is added to the bias current and flows to the semiconductor laser device 21. The on relationship is turned on in response to the write pulse, and the recording current from the current source 47 is added to the bias current and flows to the semiconductor laser device 21. In this way, a laser beam for recording is emitted from the semiconductor laser device 21, and data written on the optical disc 13 is obtained. The system controller 11 reads, via the bus 14 and the SCSI interface 10, address information obtained from the LPP decoder on the writing position on the optical disc 13 due to the detector i (step S25). ), And it is determined whether the address information indicates the last address of the recording area MA (step 6). If the obtained address information does not indicate the last address of the recording area MA, the process returns to step S23 and the operation is repeated from there. If the read data indicates the last address of the recording area MA ', then the process waits for a time sufficient to cause a buffer underrun to occur (step S27). The buffer underload operation is performed in such a way that the image data held by the buffer memory 8 is read by the DVD encoder 7 and the data writing is performed without holding the data in the buffer memory 8 0 Continued pages (When the invention description page is not enough, please note and use the continuation page) 玖, the state of the invention description is executed under the continuation page. As in step S26, it has been determined that the read address information indicates the last address of the recording area MA. The waiting time for causing a buffer underrun is, for example, a period corresponding to the last The time when the data of the address is written. Since the execution of the next step S28 is delayed by this time, the writing of the image data to the last address in the current recording area i or MA is surely completed under its corresponding recording conditions. In other words, the recording condition is prevented from being changed in the last address of the current recording area MA. After executing step S27, the system controller u determines whether the recording area MA 疋 is the last recording area MAe (step S28). If MA is not equal to MAe, then 1 is added to MA 俾 to access the next recording area MA (step S29), the process proceeds to step S22, and the operation is repeated from step S22. If MA is equal to MAe, it means that the image data has been written into the recording areas. Consider the case where the optical disc 13 is a write-once disc for DVD_R, and for example, the recorded data contains 8T (T is a unit bit length), as shown in FIG. 11A. In this case, the strategy generating circuit 6 converts the recorded data into a write pulse train. As shown in Fig. 11B, 俾 can generate a mark of 8T. When no write pulse is generated, a bias current flows from the current source 45 to the semiconductor laser device 21. The power of the laser beam emitted by the semiconductor laser device 21 according to the bias current, that is, the 'bias power, is at a power level higher than the zero level by Pb, as shown in Fig. 11C. When the write pulse is generated, the recording current from the current source 47 is added to the bias current and flows to the semiconducting 0 Continued page (When the description page of the invention is insufficient, please note and use the continued page ) 发明, description of the invention Description of the invention continued body laser device 21. The semiconductor laser device 21 emits electric power of the laser beam according to the total current of the recording current and the bias current, that is, the recording power is at a level higher than the zero level P0 (p0 > pb) The power level is shown in Figure 11C. If the optical disc 13 is a rewritable disc of a DVD-RW, when the recorded data, for example, contains 8T (T is a unit bit length), as shown in FIG. 12A, The strategy generating circuit 6 converts the recording material into erase pulses, as shown in FIG. 12B, and a write pulse train, as shown in FIG. 12C. The erase pulses are generated just before the write pulse train is generated. When neither the erase pulse nor the write pulse is generated, a bias current from the current source 45 flows to the semiconductor laser device 21. The power of the laser beam emitted by the semiconductor laser device 21 according to the bias current, that is, the bias power, is at a power level higher than the zero level by Pb, as shown in Fig. 12D. When only the erase pulse is generated, the erase current from the current source 46 is added to the bias current and can flow to the semiconductor laser device 21. The power of the laser beam emitted by the semiconductor laser device 21 according to the erasing current and the bias current, that is, the erasing power, is at a power level higher than the zero level pe (pe > pb) As shown in Figure 12D. When the write pulse is generated, a recording current from the current source 47 is added to the bias current so that it can flow to the semiconductor laser device i21. The power of the laser beam emitted by the semiconductor laser device i 21 according to the recording current and the bias current, that is, the recording power, is at a power level p0 (p0> Pe) higher than the zero level. Standard, as shown in Figure 12D. 0 Continued pages (When the invention description page is insufficient, please note and use the continuation page) 玖, invention description invention description Continued pages When the data has been completely written into the several recording areas, the system controls 1§ 11 The CPU 9 is notified via the SCSI interface 10 and the bus 14 to change the recording power, the erasure corresponding to the current writing position on the optical disc 13 optimized by the detector 1 The power and the respective power levels of the bias power (step S4). The CPU 9 rotates the optimized power level information to the LD driver 5 in response to the changed command. The optimized recording power, erasing power, and bias power are previously specified corresponding to each position in the radial direction of the optical disc 13. In the LD driver 5, the bias current value of the output of the current source 45, the output erase current value of the current source 46, and the output recorded current value of the current source 47 are based on the power level information. Specify. The system controller 11 notifies the CPU 9 to write the lead-out information to the lead-out area of the optical disc 13 via the SCSI interface 10 and the bus 14 (step S5). The CPU 9 moves the writing position of the detector i to 15 the lead-out area of the optical disc 13, and notifies the DVD encoder 7 to write the lead-out lean. The DVD encoder 7 provides the recording data corresponding to the lead-out information to the strategy generating circuit 6, and the strategy generating circuit 6 converts the recording data into a code to generate erase and write pulses, thereby the lead-out information It is written to the lead-out area of the optical disc 3. 20 After the writing of the lead-out information is completed, the system controller n notifies the CPU 9 via the scsi interface and the bus 14 to change the individual power level to the maximum corresponding to the optical disc 13. The recording power, erasing power, and bias power of the inner peripheral position are optimized (step S6). The CPU 9 responds to the changed command to continue the optimized power 0 to the next page (it is said that there is no profit, _ remember to use a continuation page) 玖, invention description, invention description, continuation page level information output To the LD drive. Then, the system controller 11 notifies the CPU 9 to write the recording management information RMD to the RMA of the optical disc 13 via the SCSI interface 10 and the bus 14 (step S7). The CPU 9 moves the writing position of the detector 1 to the RMA of the optical disc 13, and notifies the DVD encoder 7 to write the recording management information of the disc. The DVD encoder 7 supplies the recording material k corresponding to the recording management information to the edge beam generating circuit 6 'The strategy generating circuit 6 converts the recorded data into a code to generate erasing and writing pulses, and accordingly The record management information RMD is an RMA written to the optical disc 13. After the writing operation of the record management information RMD is completed, the system controller 11 notifies the CPU 9 via the SCSI interface 10 and the bus 14 to write introduction information (completion information) to the introduction of the optical disc 13 Area (step S8). The CPU 9 moves the writing position of the detector 1 to the lead-in area of the distant optical disc 13, and notifies the DVD encoder 7 to write the lead-in information of the optical disc 13. The DVD encoder 7 provides the recording data corresponding to the introduction information to the strategy generating circuit 6. The strategy generating circuit 6 converts the recording data into a code to generate erasure and writing pulses, and accordingly, the introduction Information is written in the lead-in area of the optical disc 13. The writing of the record management information RMD and the incoming information is final. As the data of the record management information RMD, a driver supplier ID, a serial number, a model, a strategy code, a recorded power, a time stamp, and the like are included. As the data of the introduction information, disc information, supplier information, writing strategy information, and the like are included. On the next page, Gu Pengyu, please note the use of 顚) 发明, the description of the invention, after the writing operation that becomes the introduction of Gongxun, the system controller U = the CPU 9 stops the operation of the DVD writing device (step S9) . With some operations, to the optical disc y13, the recording of the thief disc 4 was recorded by 7L · 0 5 _ M material ° After it has been recorded in several recording areas in the 'Hai data area, Going back to the detector i, the recording power, the optimized power, and the bias power at the current writing position, the optical disc 13 is prevented from becoming a non-reproducible test disc. 10. In the case where the command system is provided in step S4 and step% to change the individual electrical rate, as in step S22, if the optical disc Η = once the optical disc is written, the output of the coffee 9 corresponds to The obtained power level information of the recording power and the bias lightning power in the recording area is "in the drive 5", and the index of the erasing power is 0 mW. FIG. 13 illustrates another example of an audio recording device according to the present invention. In the information recording device in FIG. U, the μ and flat encoder 7 are provided with a detector 7a for detecting the buffer memory 8's heart-shaped impulsive human-carrying operation. The other components are the same as those of the information recording device of FIG. In the information recording device of FIG. 13, the recording operation of step S3 in FIG. 6 is not performed as described in No. 14-20. That is, if the address information obtained in the processing MA, S26 indicates the recording area, 'the system controller' reads the buffer under-subscription via the _program carrier and the MS1 interface M. _7_ Check whether the under-run of the buffer-buffer has been detected (step S27a). If a delay of 0 continues the next page (if the invention says that it is not profitable, please note and use _ to carry 仃 has been detected 22 Kan, invention description invention description continued page = words 2 the process proceeds to ㈣S28. The operation of the record and The recording operation shown in Fig. 10 is the same. In the embodiment shown in Figs. 13 and 14, the execution of the process is delayed within the next time-the buffer underrun is detected in the step Step S28 of the time. This ensures that the image data can be completely written to the last address of the current recording area ma under the recording conditions associated with it. Another aspect is that when writing data, ^ DVD writer Performing processing of a large amount of data or complicated processing such as temperature compensation of laser power may happen that the DVD writer does not respond to changes in recording conditions like recording power. Then, in the foregoing embodiment, In each of these, the process waits in step S27 for a period sufficient to cause a buffer underrun or a buffer underrun in step S27a. This allows information data, like image data, to be transferred To Buffer memory 8: It is completely written before the recording condition is changed. This makes it possible to delete the write $ and perform processing under reduced load when writing the profile, thereby ensuring the DVD writer The device responds to changes in the recording conditions. Although the recording power and the bias power, or the recording power, the erasing power, and the bias power of the laser beam per recording area are set as the recording conditions, 'The present invention is not limited to this. As a recording condition'-A pulse width of a write pulse output from the strategy generating circuit 6 in response to a command from the CPU 9 can also be used. Furthermore, formed in- The vertical line radiated by the laser beam and the direction of the optical axis of the laser beam at a position on the recording surface of the optical disc 13 (Female fiber page) 1464 hurdles, invention description invention description The tilt angle between continuation pages can also be used. In addition, the offset value of the focus servo circuit or the offset value of the tracking servo circuit can be used to set the record condition.

As described above, the present invention makes it possible to appropriately record information materials into a plurality of recording areas under mutually different recording conditions by using a recording device. In particular, it is ensured that the information material is recorded to each recording area to its last address under the recording conditions associated with it. [Schematic ^ simple ^ say ^ explain] FIG. 1 is a block diagram 10 depicting the structure of the information recording device of the present invention; FIG. 2 is a block diagram depicting the structure of the ld drive in the device of FIG. 丨Figure 3 is a block diagram depicting the structure of an analog processing circuit; Figure 4 is a diagram depicting a waveform representing the Lpp component detected by a pre-pitched ballast test circuit;

Figure 5 is a diagram depicting each area on the recording surface of an optical disc; "Figure is a flowchart of the operation of the device riding Figure i; Figure 7 is a DVD cut Recorded conditions and target values, M Θ 疋 is a record of n-DVD-RW's recording conditions and target values; Figure 9 is a graphic depiction of the recording conditions and target values of Green DVD_RW, 0 continued, Human page (when turning over wealth and applying details, remembering to use continued blindness) 24, 200301464, invention description, invention description,% _stomach Figure 10 is a flowchart specifically drawing the flowchart in Figure 6; Figure 11A S 11C is a drawing depicting the pulse waveform and the change in the mother-electric power related to the recording data of _ DVD_R; 5 The 12A to 12D are drawing related to the recording data of a DVD-RW Illustration of write pulse waveform and changes on each power. Fig. 13 is a block diagram depicting another embodiment of the present invention, and Fig. 14 is a recording operation depicting the device of Fig. 13 Flowchart 〇10 [Representative symbol table of main components of the diagram] 1… detector 25 22… ♦ quarter optical detector 2 'Analog processing circuit 23 ... Front monitor ... DVD decoder 22a Light receiving surface 4 LPP decoder 22b Light receiving surface 15 5 LD driver 22c Light receiving surface 6 Strategy generating circuit 30 22d Light receiving surface Ί. DVD encoder Ra Receive light signal 8 ”Buffer memory Rb Receive light signal 9 CPU Rc 'Receive light signal 20 1 ′ SCSI interface Rd Receive light signal 11 System controller 35 31 Adder 12 Spindle motor 32 Adder 13 Optical disc 33 & lt Adder 21 Semiconductor laser device 34 Pre-pit detection circuit 0 Continued pages (don't leave the brain for a face-off) _Reminder Rev. 25 Description of the invention 发明, Invention description PPd. Pre-pit detection signal 50 · •• Switch Η ♦ Threshold voltage 51 · • •, buffer amplifier 14 · · common bus 52. · · S / Η circuit 41 · · interface 53 · • · APC 42 · · D / A converter 54. • V / I converter 43 * * D / A converter 15 * •• Servo circuit 44 * * D / A converter 7a. Detector 45… Current source S1 ~ S9 step 46 · ♦ Current source S21 ~ S29 * * 47 quenching current source 48 · 26 switches switch 49 ♦

Claims (1)

Under the recording conditions of the scope of patent application and patent application, the information record of the information record area is a record for recording different data to a writable disc by a recording device, including: Storage device for storing the information and data to be recorded on the disc "body-recording control device", which is used to transfer the material stored in the storage device to a buffer memory. The information data storage party ... inside the company continuously extracts the information data stored in the buffer memory 'and allows the recording device to record the extracted information data on the disc; and the recorded conditions are changed If the under-run operation of the buffer has occurred in the buffer memory, change the recording condition of the recording device. 2. The information recording device as described in item 1 of the patent application scope, wherein when the disc is a write-once optical disc 0 temple, the recording conditions set by the record are indicated by indicating the number of recording areas The recording power and bias power of the laser beam of each of them are set, and when the disc is a rewritable optical disc, the recording condition of the recording device is indicated by indicating the number of records The recording power, erasing power, and partial dust power of the laser beam of each of the areas are set. 3. The information recording device as described in item 1 of the scope of the patent application, which claims that the recording condition changing device measures a value sufficient to cause the buffer to fail after detecting the slave address of one of the plurality of recording areas. The elapsed time of the load operation changes the recording conditions of the recording device. 0 Continued pages (Please note and use continuation pages when the patent application page is insufficient.) 27 10 • A method for using a recording device to record to each other a virtual μ J horse into a film without data, including the following steps: Under the same recording conditions, the information recorded in the information recording area should be printed, printed, and printed. The information data in the storage device is transferred to " ", the memory can store the information data in it; continuously retrieve the information data stored in •, M buffer " Buffering Allows the recording device to be manipulated, and records %% on the disc 15 The underrun of the buffer has occurred in the After changing the memory conditions of the buffer memory of this era, the recording conditions of the self-confidence are recorded. 28