TW460860B - Recordable/Writable optical disk - Google Patents

Abstract

The present invention enables an optical disk to be recorded with large capacity and accessed at high speed, and can correctly, speedily and continuously record and reproduce information with high reliability. This optical disk is composed of a rewritable data area constituted of recording parts of a land shape and a groove shape on which the data are recorded/reproduced, and a header part answering to these recording parts, recording with address information and arranged in a hound's tooth check shape and an emboss data area on which the data are recorded by an emboss, and capable of only reproducing the data related to disk discrimination as a read-in area.

Description

Seal of Work and Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 簟 46086 0 A7 v. ___B7_ V. Description of the invention (彳) [Technical scope to which the invention belongs] The present invention relates to a sector arranged along a spiral track as The unit can record and reproduce optical discs for data recording and reproduction, and an optical disc device that records and reproduces data for this optical disc. [Previous · Technology_] As far as the so-called rewritable optical discs that can be recorded and reproduced are manufactured, there are optical discs with a diameter of 120 mm, optical discs with a diameter of 90 mm, and 120 mm. Phase change disc (commonly known as PD) and so on. In these discs, a guide groove for guiding the laser light irradiation is formed, and the refraction of the laser light in the guide groove is used for tracking. The guide groove is from the inner peripheral side of the disc to the outer periphery. The sides are formed continuously and spirally. This guide trench is called a grove, and the non-guide trench is called a land. In the past, only information was recorded on either side of the ditch or lane. On the other hand, the information on such a disc is read and written in, for example, 5 12-byte units or .208 bytes. Call this group of information ... '«The unit is a section. In this section, a section address showing the address of each section is allocated, information is recorded to the target address, and the information is of high reliability for reproduction, and the formatting is performed according to the predetermined section format. In this format, the bumps called pits are formed in the header of the sector to record the information of the sector. The part that records this section of information is called the header. As mentioned above, in the previous optical discs, only one of the grooves or lanes was recorded. For the header, the grooves were recorded only in the grooves when the lanes were recorded. China's family ladder standard (CNS) A4 now (210X297 mm) A -4-. ^ 1 In HI · 1 —ϋ Λ. · 11 —ϋ 11 (Please read the notes on the back of B8-. (Fill in this page)! R 4 6 0 8 6 0 A7 _ B7 V. Description of the invention (2) Yu Xiang. [Problems to be solved by the invention] * In this way, in the conventional optical discs, information was recorded only on either the ditch or the lane. However, if information can be recorded on both the ditch and the lane, it can be easily inferred that Achieve a huge record capacity. However, in order to record information in both the lane and the ditch, how to form the segment information becomes an issue. This problem will be described below. In the conventional optical disc forming the spiral track as described above, the groove and the lane system are formed in parallel. The grooves and lanes each draw a spiral trajectory in parallel with each other, so that the spiral trajectories of the grooves and lanes are formed on the disc, so that the conventional optical disc structure is called a double spiral structure. In this double-helix structure, the trench and the lane are formed in parallel. When moving from the trench to the lane, it is necessary to make a track jump. Therefore, in order to regenerate the information record and switch from the ditch to the lane (or when the lane is switched to the ditch), a spiral track or 'tracking' is required, and it is difficult to perform continuous information recording and reproduction. Du Yinshu n HI 11- «I— i I 1.---1 ^ 1 In i ^ im (read the notes on the back without any notes before filling in this page) '. Furthermore, with such a double-helix structure, when the disc is formatted, the section on the groove (hereinafter referred to as the groove section) and the lane (hereafter referred to as the lane section) have to be formatted separately. This system, for example, uses the area C’A V method to interactively record and reproduce information on adjacent alleys and trenches, which may be inappropriate when formatting a disc. That is, in order for adjacent lanes and trenches to have continuous section addresses, intermittent address locations need to be removed in each. :: circle, and only the trenches and lanes are formatted. At this time, the addresses from the lane to the ditch or from the lane to the ditch are connected continuously so that they are coordinated. The paper size applies to the Chinese National Standard (CNS) A4 (210X297 mm) -5- Ministry of Economy Printed by the Central Consumer Bureau of Consumers' Cooperatives 460860 A7: B7 V. Description of the invention (.) 〇 It will be difficult to format it. Furthermore, when recording information is reproduced, when the movement from the lane to the ditch or the ditch to the lane cannot be performed smoothly, disc rotation waits will occur, which hinders the realization of continuous information recording and reproduction. The present invention has been made in order to solve the above-mentioned problems, and as its object, it has a large-capacity recording capacity and high-speed access speed, and can record and reproduce information in a reliable and continuous manner. The optical disc device and the optical disc device for performing recording bottom reproduction of information accurately and at high speed on such a recording and reproducing optical disc. [Means to Solve the Problems] In order to achieve the above-mentioned object, the optical disc device of the present invention is formed by the structure described below. The optical disc for recording and reproduction of the present invention is characterized by having: a first field based on a first format that enables recording and reproduction of data; and a second field based on a second format different from the first format , Only makes it possible to reproduce the information about disc identification. .--The so-called 1st specification is the one that enables the recording and reproduction of data. The 1st grid is for the recording and reproduction of data for lane-shaped and groove-shaped recording units. At the same time, it is arranged in a zigzag shape. The head of the head is recorded with address information corresponding to the lane-shaped and groove-shaped recording section. The ip grid refers to the first recording section of the lane-shaped area where data is recorded and reproduced, and the header half of the header before the address information of the first recording section is recorded, and the data is recorded and reproduced. The ditch-like collar paper size is applicable to the Chinese National Standard Car (CNS) A4 specification (210X297 mm > ---------- (/ 于 ------ Order I ---.- ; --Fv, .r ~. (. V.. ({Please read the precautions on the back of i # before filling in this page) -6- 460860 乂 7 V. The second record section of the description of the invention (4) , And the address information corresponding to the second recording section is recorded 'is paired with the above-mentioned first half-mark header, and is configured with a zigzag-shaped rear half-mark header, which is the first field that enables the recording and reproduction of data, that is, 'Writable data area, who records and reproduces data. In addition, the second specification is different from the first specification, and is recorded by embossing formed by pits with uneven shapes different from those in the rewritable data area. The embossed field of data, the reproduced data. This embossed field is a field that only reproduces the data about disc identification, for example, as a read-in collar The field is used to reproduce the data first than the record reproduction of the rewritable data collar. With such a structure, the lane / groove-shaped recording section and the jagged lane / head groove / groove Recording, making it possible to record large-capacity data. At the same time, even if the data recorded in the lane / ditch record cannot be read, as long as the data recorded in the embossing field can be read, the disc can be easily carried out. Recognize and get the correct information quickly. This is the person who promotes the recording and reproduction of high-reliability data at high speed. [Implementation Mode of the Invention] • 'Industrial Cooperative of the Shellfish Consumers Cooperative of the Central Procurement Bureau of the Ministry of Economy ---I---II! T 衣 1 ^ 1 In I t > -SJ (锖 Please read the precautions on the back before filling in this page) The following describes the embodiment of the present invention with reference to the drawings. In FIG. 1, the structure of the header portion of a sector of a recording and reproducing optical disc formed by the embodiment of the present invention is schematically shown. In the structure shown in FIG. 1, the optical disc system forming the header portion has a spiral shape. When you follow the track like a track, you can go through it Track P jumps, and under each week track, the polarity of the track is alternately composed of lane, ditch, lane, and ditch. The following is a description of this constitution. This paper standard is applicable to Chinese national standards (CNS > A4 specifications (210X297). (Mm) [r 4 608 6 0 a?; J ^ _ B7_ V. Description of the invention (5) Figure 1 (a) shows the header structure of the section showing the switching point of this tracking polarity. This is called the tracking polarity here. The section of the switching point is the first section. Figure 1 (b) shows the header structure of the sections other than this first section. As mentioned above, the ditch and the lane are switched alternately for one week per track. During the tracking, the polarity of the ditch or lane needs to be switched. The section of the switching point of the tracking polarity has a header configuration different from that of other blocks. The headers shown by Headerl, Header2, Header3, and He.ader4 are in the range formed by the concave and convex shape of the pit (pit), and the address information on the predetermined section is recorded through the concave and convex shape. The information recording range shown by RF1 to RF9 and R1 to R8 is, for example, a range formed by a recording film of a phase change type, and is described below as a recording section. When using a phase-change recording film, the user uses the difference in reflectance caused by specific optical changes in the crystalline state and amorphous state of the recording film to record and reproduce information. Among the recording sections, RF 6 to RF 9,... And R 5 to R 8 are the recording sections of the sections forming the guide grooves, and the recording sections of the groove sections are described below. On the other hand, RF 1 to RF4, R1, and R 2 are displayed on the guide groove portion that is not adjacent to the groove section. *, · Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs {Please read the back for lack of attention Please fill in this page again for details.) The record section of the section is described below as the record section of the lane section. In addition, in FIG. 1, the display corresponds to the direction on the outer periphery and side on the disc, and the direction on the inner periphery side on the disc is shown below. Therefore, the vertical direction corresponds to the radial direction on the disc. Furthermore, # (m + N), # (n + N), etc. :: Shows the sector number of the sector address. Here, m and η represent integers. In addition, N indicates the number of segments per track per week, for example, a predetermined integer from 17 to 40. This paper size applies the Chinese National Standard (CNS) A4 specifications (210 × 297 mm) -8- Printed by the Consumers ’Cooperative of the Central Bureau of the Ministry of Economic Affairs f 4 608 6 0 at B7 V. Description of the invention (6) Below, for Figure 1 (a) illustrates this in more detail. In FIG. 1 (a), the 4th track 1st section of the section numbers # 〇1, # (111 + 1 ^), # (m + 2N), and # (m + 3N) is displayed. . The header of this first segment is formed into a four-write structure by cutting as described later. Each part of the quadruple writing header is Headerl, Header2, Header3, Header4. _ Again., Headerl and Header2 constitute the first half of the header, and Header3 and 1 ^ & £ 1614 form the second half of the header. Among them, the first half of the header is used as the header of the lane section and the second half of the header. The head is used as the standard head of the lane section. Furthermore, in the detailed description, the recording section RF 6 regarding the groove section # (m) displaying the address via the section number # (m) is at the beginning of this section, and is passed through the mapping area (Mirrorfield) (hereinafter referred to as The mapping section) sets the second half of the beginning HF 2 and uses it as the beginning of the segment. At this time, the position of the first half HF 2 is the position of the recording portion RF 6 forming the groove section # (m), which is shifted by only half a track interval on the inner peripheral side, that is, it is formed in displacement by parallel movement. Its location. The so-called track interval is the distance between the adjacent lane and the ditch, which refers to the distance from the center of the lane to the center of the ditch. The distance shown by the symbol. »K P in FIG. 1. In addition, the recording section RF 2 showing the address of the lane section # (m + N) via the section number # (m + N) is at the beginning of this section, and through the mapping area, through the latter half of the standard The space occupied by the head HF 2 is set: the front half-open collar HF 1 is placed and used as the beginning of the section. At this time, the first half header HF 1 is Headerl and Header2 which record the address information of the section number # (m + N). The first half header II --------- ^^ --- --- Order —----— ΊΓ · -V (please fill in this page before the notice on the back of the si ??) This paper size applies to the Chinese national standard (CNS > A4 specification (210X297 mm > -9) -Printed by the Central Laboratories of the Ministry of Economic Affairs, Shellfish Consumer Cooperatives 4 6086 0 __B7__ V. Invention Description (7) Department. That is, it displays the address information shown in the previous half of the standard head HF 2 For the address information, the first half of the header HF 1 is located on the outer periphery of the second half of the header HF 2 and shows the address information of the difference 1 track 1. Furthermore, the aforementioned header 1 is for forming the lane section # ( The position of the recording portion RF 2 of m + N) is formed at a position shifted by only half a track interval on the inner peripheral side. Here, the recording portion RF 2 of the lane section # (m + N) is adjacent to the groove area. The recording section RF6 of the segment # (m) is formed. That is, the recording section RF2 of the lane section # (m + N) is shifted only to the outer peripheral side by 1 for the recording section RF 6 of the groove section # (m). The orbital interval is formed separately. Therefore, the front half of the head HF 1 series For the second half of the head HF 2, it is formed by shifting only one track to the outer periphery. The previous half of the head HF 1 and the second half of the head HF 2 are formed continuously by cutting as described below. The first half of the head Η · Header 2 of F 1 and Header 3 of the rear half head HF 2 are close to each other. With this configuration, Header 2 of the front half head HF 1 and Header 3 of the rear half head HF 2 are close to each other. The front half mark head HF 1 and the rear half mark head H F2 are paired with each other to form a jagged header structure. However, the section of the recording section RF 6 of the lane section # (m) is formed. Number, the recording section RF1 showing the address of the lane section # (m-1) is located at the beginning of the header section HF 2 after the header section of the groove section # (m), That is, the space between the Header 3 and the space occupied by the first half of the header HF 1 is formed on the same track as the recording section RF 6 of the groove section # (ΠΊ). Paper size applies Chinese national standard (CNS > A4 size (2 丨 OX297mm)! -10- (Please read the Please fill in this page again if you want to know)-, ιτ > 460860 V. Description of the invention (8) The section number # (m + N) of the recording section RF2 of the lane section # (m + m), the display digit The recording portion RF7 of the address groove section # (m + N_ 1) is close to the beginning of the half mark head HF 1 before the beginning of the lane section # (m + N), that is, the portion near the Header 1 is formed between Lane section # (m + N) is on the same track position as the recording section RF2. Next, FIG. 1 (b) will be explained as follows. In FIG. 1 (b), the three-track divisions of the segment numbers # n '# (n + N) and # (n + 2N) are displayed. The header of this section is the same as that of the first section, and a 4-fold write structure is formed by cutting as described below. The first part of the 4-fold writing is also the same as that of the first section, each of which is called Headerl, Headre2, Header3, Header4, and Headerl and Headre2 are used as the header of the lane section. Header3 and Headre4 are used as the semi-subjected heads after being used as the sub-heads of the groove section. Printed by the Consumers' Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs {Please read the notes on the back before filling this page) and, more specifically, for the description of the address of the groove section # via section number # (η) The recording section R6 of (η) is at the beginning, and the second half header Η2 set by the mapping section is used as the header of the section. At this time, the second half of the header Η 2 is used as the header of the segment. At this time, the header 标 1 of the previous half mark has the header of the second half mark which is Headed and Header 4 which record the address information of the sector number # (η). Moreover, the position of the head Η 1 in the latter half is the position of the recording portion R 6 forming the groove section # (η), which is formed on the inner peripheral side by a position offset by only half a track interval, that is, formed by the parallel "Position of moving position" About the lane section where the address is displayed via section number # (n + N) The paper size is applicable to Chinese National Standard (CNS) A4 specification (210X297 mm) · -11-460860 at ______B7____ V. Description of the invention (9) # (n + N) The recording portion R2 is at the beginning, and the mapping portion is set at the same time as the mapping portion, and the first half of the range is occupied by the space of the second half of the header Η 2 Η 1, used as the beginning of the section. At this time, the first semi-standard header Η 1 is the first semi-standard header formed by Headerl and Header 2 which record the address information of the section number # (η + Ν). That is, the previous semi-standard header Η 1 is relative to the lane. The position of the recording portion R 2 of the sector # (η + Ν) is formed at a position shifted by only half a track interval on the inner peripheral side. Here, the recording section R2 of the lane section # (η + N) is formed adjacent to the recording section R6 of the groove section # (η 〇). That is, the recording section R2 of the lane section # (η + N) is formed. The recording section R6 of the groove section # (η) is formed by shifting only one track space to the outer periphery side. Therefore, the first half of the head Ή 1 is only the outer periphery of the second half of the head Η 2 It is formed by shifting by 1 track side by side. In addition, the aforementioned header Η 1 and the latter half of the head Η 2 are formed continuously by cutting as described later, the former 2 of the former head Η 1 and the latter Η 2 Header3 is close to the configuration. "With this configuration, the first half of the head H1 and the second half of the head 系 2 are formed in a jagged structure. Read the notes on the back and fill in this page again} However, the section shown by the section number # (η) preceding the section R 6 of the recording section R 6 of the groove section # (η) is the same as the first section above. The situation of the sector is different, and it is the groove sector # (η-1). The recording section R5 of this groove sector # (η — 1) is for the groove sector # (η). The first half of the header half 挥 2 is formed at the same track position as the recording section R 6 of the groove section # (η) through the space divided by the front half of the header Η 1 In the same way, the lane section # (η + Ν) This paper size applies to the Chinese National Standard (CNS) A4 specification (210 × 297 mm) -12- A7 B7 460860 V. Record section R2 of the description of the invention (彳 〇) The sector number # (n + N) shown by the previous sector number is lane segment # (n + N-1). The recording portion R1 of this lane segment # (n + N — 1) is The leading part of the first half of the header Η 1 which is close to the header of lane section # (n + N) is formed on the same track position as the recording section R2 of lane section # (η + η). Next, The manufacturing of a disc for recording and reproduction having the above-mentioned structure will be described. When manufacturing a disc, a method called cutting is first used to produce a master disk having a concave-convex shape corresponding to a lane or a pit. The concave-convex shape formed on the original disk The resin is transferred to a stamper, and the stamper is used as a mold to form a resin that transfers unevenness. The resin is used as The substrate of the dish is used, and a recording film such as a phase change film is formed on the uneven surface by means of evaporation or the like. Furthermore, a protective film that protects the recording film is coated on the recording film. It is formed by the method. In this way, the optical discs formed by grooves, pits, etc. are produced. However, the above-mentioned optical disc substrate can be manufactured by bonding through an intermediate layer made of the same material as the protective film. Fig. 2 shows an original disk recording device for recording the concave-convex shape of the corresponding groove or pit on the original disk through the inscription. In this master recording device, the laser light emitted by the laser light source 41 (for example, an Ar laser or a K r laser) is a laser optical axis control system that is incident on the optical axis for adjustment. 4 2. The optical axis changes corresponding to the temperature change of the laser light. The laser light is reflected by the mirror 43, and is modulated by the E · 0 modulators 44a and 44b controlled by the format circuit 49. 44 The paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) ( Please read the note on the back of K * before filling out this page) Order printed by the Central Bureau of Standards of the Ministry of Economic Affairs, printed by the Cooperative Consumer Cooperatives-13- 460860-Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Consumer Cooperatives of the Ministry of Work ) To modulate laser light with an arbitrary signal. Here, the laser light can be modulated to a signal of a predetermined format. However, the format circuit 49 performs the modulation of the laser light and the control of the beam modulation system 44 according to the inscription operation described later. Next, the laser beam is formed by a beam shaping system 4 5 through a point hole or a gap, and the beam diameter or shape is adjusted. At this point, the laser light adjustment is finished, and the beam monitoring system 46 can determine the beam shape. The laser light is further guided to the mirror surface 47, and the objective lens 48 is used to condense and irradiate the optical recording original disk 40. To do this, record the original disc 40, for example using a glass disc :. A photosensitive coating (photoresist) is coated on the glass disc, and the surface of the photosensitive coating is irradiated with laser light. The portion that is photosensitive by the laser light is etched into a concave shape. In order to shape the surface formed by the irradiation of the laser light into a desired uneven shape, grooves and format patterns are recorded. Based on the processed glass disc, a stamper was made. During the engraving, the glass disc 40 is rotated, for example, by a rotation means 39 such as a motor. Further, the optical pickup having an objective lens 48 for irradiating laser light at a predetermined position on the glass disc 40 is moved at a constant speed from the inner peripheral side to the outer peripheral side of the glass disc 40. At the time of engraving, the optical pickup is rotated every 1 disc, and moves at the same speed from the inner peripheral side to the outer peripheral direction in proportion to the track interval. With this movement, the laser light irradiation position is moved. Through the optical pickup thus moved, the portion irradiated with the laser light is a ditch, and the portion not irradiated is a lane. In the header, it is extinguished by the point of the laser light, and is formed into a concave and convex pit. Next, the engraving operation according to the embodiment of the present invention will be described with reference to Fig. 1. (锖 Please read the first page without any precautions before filling out this page) The paper size of the edition is applicable to the Chinese national standard (CNS > A4 size (210X297 mm) -14-Printed by the Bayer Consumer Cooperative Department of the Central Standards Bureau of the Ministry of Economic Affairs 4 6 0 8 6 0 A7 ____ B7_____ V. Description of the invention (12) In Figure 1 (a), the section # (m-1) of the lane indicated by the address is recorded via the section number # (m-1) For the RF1, the inscription processing is finished at the time point t. However, as described above, in the lane range of the recording part RF 1 of the lane section # (m-1), the laser light from the optical pickup is not performed. The irradiation is performed only by moving the laser light irradiation position. The operation of the laser light irradiation position is performed by driving the rotation of the optical disc, the movement of the optical pickup, and the objective lens provided on the optical pickup. At this point At t 0, after the processing of the recording section RF1 of the lane section # (m — 1) is completed, then, the mine is shifted from the track center of the recording section RF 1 of the lane section # (m — 1) to the outer periphery of the half track. The irradiation position of the light. In this offset track position, the section number is Header 1 and Header 2 of # (m + N), that is, the head of the first half of the record. HF 1. At this time, a pit corresponding to the display section number information is formed, and the laser light irradiated from the optical pickup is turned off. However, the Headerl of the front half head HF 1 is close to the lane section # (m- 1) The recording part RF 1 records it. Then, after the recording of this Headerl, continuously record the Header2 of the first half of the header HF 1 and record the Header1 and Header2 of the first half of the head number HF1, that is, the first half When the recording of the header HF 1 is completed, the track center of Header1 and Header2 is moved to the inner peripheral side by one track space to move the laser light irradiation position. That is, since lane section # (m — 1) The track center of the recording section RF 1. is only one. The inner peripheral side is shifted by half a track interval to offset the laser light irradiation position. At this offset track position, the section number is Header3 and HeadeM of # (πι) That is, record the second half of the head HF 2. At this time, correspond to it (please read the precautions on the back before filling this page) The size of the paper is applicable to China National Standard (CNS) A4 (210X297 mm) -15- ί '46086 0 a? Β7 Seal of the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs Description of the invention (13) The pits displaying the information of the sector numbers, extinguish the laser light irradiated from the optical pickup. However, the Header 3 of the rear half head HF 2 is recorded close to the head of the front half head HF 1 and recorded. Then, after the recording of this Header3, continue to this Header3 and record the Ueader4 of the second half header HF2. Header3 and Header4 of section number _ # (m), that is, the recording of the second half of the head HF 2 is finished, and then, after the mirror surface, the recording section RF6 of the groove section # (m) is engraved. recording. At this time, no laser light was irradiated on the mirror face. From the track center of Header3 and Header4 of the section number # (m), only the outer track is shifted by a half track interval _ to move the laser light irradiation position. That is, at the same track position as the track center of the recording section RF 1 of the self-lane section # (m _ 1), the track center of the Headerl and Header2 of the section number # ('m + N). Each inner peripheral side is shifted by a half-track interval, and the laser light irradiation position is shifted. At this offset track position, the recording of the recording section RF6 of the groove section # (m) is performed. In the recording section RF6 of this groove section # (m), laser light is irradiated, and a groove shape, that is, a groove is formed by etching of the photosensitive paint. At this time, the direction of the laser light from the inner peripheral side toward the outer peripheral side, that is, in the radial direction of the disc, for example, with a 186 channel bit period, vibrates a sine wave, and the groove is formed in a wave shape. The signal component obtained from this wave-shaped groove can be used as a reference signal generated when the data is written (that is, when recording information on a recording / reproduction disc). In one week from section number # (m) to section number # (m + N-1), all the sections are groove sections. These ditch sections are recorded as --1-- .ί) (Please read the lack of notes on the back before filling out this page

X This paper size applies the Chinese national standard (CNS > A4 size (210X297 mm). Printed by Shelley Consumer Cooperative, Central Standards Bureau of the Ministry of Economic Affairs, printed 460860 A7, ____B7. 5. Description of the invention (14) Engraved in the following prescribed procedures Record. Here, the inscription of sectors other than the first sector will be described with reference to FIG. 1 (b). In FIG. 1 (b), the groove shown in the address is indicated by the sector number # (η_ι). The recording process of the recording unit R 5 of the sector # (η-1) is completed at the time point t1. After the processing of the recording unit R5 of the sector # (η-1) has been completed, then, since The track center of the recording section R 5 of the groove section # (η-1) is shifted to the outer peripheral half track, and the irradiation position of the laser light is shifted. In this shifted track position, the section number is # (η + Headerl and Header2 of Ν), that is, the first half of the header Η1. At this time, a pit corresponding to the number information of the segment is displayed, and the laser light irradiated from the optical pickup is turned off. However, the first half of the header Η1 The Headerl is recorded in the recording section R 5 close to the groove section # (η-1). Then, after the recording of this Headerl, In this Headerl, record the Header of the first half of the header H1. Section number # (n. + N). Headerl and Header2, that is, when the recording of the first half of the header Η1 is finished, then, Headerl and Header2 The track center is shifted only 1 track space to the inner peripheral side, and the laser light irradiation position is moved. That is, the track center of the recording section R 5 of the lane section # (η — 1) is shifted by only half track intervals on each inner periphery side. Divided by the position, the laser light irradiation position is shifted. At this shifted track position, the section number is Header3 and Header4 of # (η), that is, the second half of the header H2 is recorded. At this time, the corresponding display section number is formed. In the pit of fV, the laser light irradiated from the optical pickup is extinguished. However, Header3 of the second half of the head H2 is recorded near Header2 of the first half of the head Η1. (谙 Please read the notes on the back before filling out this page) This paper size applies to Chinese National Standards (CNS) A4 specifications (210X297 mm) -17- 4 6086 0 A7 B7 Staff Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs Invention description (15), continuous here Header3, record Header4 of the half mark head Η 2. Header3 and _ Header4 of the section number # (η), that is, when the recording of the last half mark head Η 2 is finished, then, after the mirror face, the groove section # ( η) of the recording portion R6. At this time, the laser light is not irradiated in the mirror face "and moves from the track center of Header3 and HeadeM of section number # (η) to the outer peripheral side by half a track interval to move the laser light irradiation position. That is, at the same track position as the track center of the recording section R5 of the lane section # (η-1), the track centers of the Header1_ and Header2 with the section number # (η + Ν) are only within Circumferentially shifted by half a track interval to ground, shifting the laser light irradiation position. At this offset track position, the recording of the recording section R6 of the groove section # (η) is performed. In the recording section R6 of this groove section # (η), laser light is irradiated, and the groove is formed by the etching of the photosensitive paint to form a groove. At this time, the point of the laser light is made to radiate from the inner peripheral side toward the outer peripheral side, that is, in the radius direction of the disc, for example, with a 186 channel bit period, vibrating a sine wave, and the groove is formed in a wave shape. The signal component obtained from this wavy groove can be used as a reference signal generated by the clock when data is written. By repeating the same operation as the groove entry # (η-1) to the groove entry # (η) described above, the groove area from the section number # (m) shown in FIG. 1 (a) is performed. The recording section RF6 of the segment to the recording section RF 7 of the groove section # 7 (m + N-1) of the groove section. Engraving is performed from the recording section RF 6 of the groove section # (m) shown in FIG. 1 (a) to the recording section RF 7 of the groove section of the section number # (m + N-1). After recording, proceed to Figure 1 (a) as shown in Figure 1 (read first and read the lack of $ on the back and fill in this page.) Order. This paper size applies the Chinese National Standard (0?) 8 4 specifications (210 > < 297 mm} -18- Printed by the Central Bureau of Standards of the Ministry of Economic Affairs and Consumer Cooperatives 4 60 86 0 A7 B7 V. Invention description (16) The segmentation process of the segment. The first segment at this time is continuous Yu Lane Section # + N). In a week from the section number # (m + N) to the section number # (m + 2N — 1) of this lane section # (m + N), all the sections are lane sections. Therefore, during one week from the lane section # (m + N) to the lane section # (m + 2N-1), no laser light is emitted at the time of inscription. However, at this time, the head portions of each lane section are formed at the same time when they are engraved into the groove section on the inner peripheral side of the first track. After the entry processing from the lane section # (m + N) to the lane section # (M + 2 priced — 1), the first section is engraved. At this time, the first section is continuous with the lane section # (m + 2N-1) as the groove section # (m + 2N). The engraving of the section before the groove section # (m + 2 N) is performed by the same operation as the section engraving of the groove section # (m) described above. By repeating this operation, a header portion having the structure shown in Fig. 1 is formed. Here, when performing the above-mentioned inscription recording, the header of the groove section, that is, the header of the second half formed by Header3 and Header4, and the groove section with the same section number as the header section The recording unit is continuously recorded. For example, the header HF 2 formed by Header 3 and Header 4 of section number # (m) and the recording section RF 6 of groove section # (m) are successively engraved. However, the header section of the lane section, that is, Header 1 _ and Header 2 are formed before. The half header and the record section of the lane section with the same section number as the header section are continuous. "Don't record engraving" is recorded with a difference of 1 week. For example, the header number of the section number # (m + N) and the paper size are applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) (锖 W. Read the precautions on the back before filling in this page)

19-Printed by the Central Standards Bureau of the Ministry of Economic Affairs, SK Industrial Cooperative Cooperative 4 60860 a? __ B7 ____ V. Description of the Invention (17) Recorder of Header 2 HF 1 and Lane Section # (m + N) RF2 is recorded as a difference of one week. Therefore, if there is a discrepancy between the 1 cycle of the disc rotation and the recording signal period of the N section, the header of the lane section passes through this header and the recording section of the lane section displaying the section number. , In the state of deviation, engraved into the record. Next, the offset * of the head portion is engraved into the optical disc manufactured by the recording. When information is reproduced and recorded, the description of the embodiment of the present invention that can detect the head portion with high reliability will be described. Formatting of sections. Fig. 3 (a) shows the overall structure of the segment formed by the embodiment of the present invention. In addition, Fig. 3 (b) shows the header in this section in more detail. In Figure 3 (a), the segment is the total number of bytes of 2 6 7 bytes, which consists of 1 2 8 bytes of Header field (hereinafter referred to as the header) and 2 bytes of Mirrorfield (Hereinafter referred to as the mapping section), a 256-byte Recording field (hereinafter referred to as the recording section). However, when these headers, mapping sections, and recording sections are described with reference to FIG. 1, This is the same as the header, mapping section, and recording section. The header and the mapping section are those that have been recorded in a concave and convex shape before the disc is shipped. In this way, prior to shipment, the operation of recording in advance on the optical disc according to the predetermined concave-convex shape is called pre-formatting. On the one hand, the recording section is the information identified by the user of the optical disc after the disc is shipped, by the address information shown on the corresponding header * It is the part recorded according to the predetermined format. This record department is only applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) IIIII nn JA n 1 · nnn ^ '.c (Please read the precautions on the back before filling this page)- 20- 4 6 0 8 6 0 a? ____B7 V. Description of the invention (18) In the above pre-formatted state, as the scope of information recording, only the shape of a groove or a lane is formed. " For example, when the optical disc is a phase-change optical disc, the phase-change recording film provided in the recording section is irradiated with laser light modulated in accordance with the information recorded. Through the modulation of the laser light, a range of crystal states is produced in the recording film. And amorphous range. Then, the user uses the reflectance difference in the optical characteristics of the crystalline state and the amorphous state of the recording film of the recording section to reproduce the information. However, this recording unit is, for example, protected by (1 0 + J / 16) bytes (Gap field), (20 + K) bytes, 1 (Guardi field), 35 bits Ecuador's VF 0 3 (VF03 field), 3-byte pre-synchronization (PS field), 2 4 1 8-byte data (Data field), 1-byte PA 3 (PA3 field), (55-K) byte guard 2 (Guard2 field), (25-J / 16) byte buffer (Bufferfield) format, record information. Here, J is an integer of 0 to 15 and K is an integer of 0 to 7, and random numbers are taken. Printed by the Central Bureau of Standards of the Ministry of Economic Affairs and Consumer Cooperatives 1 »1 l 1 ^ 1 ί \ ^^^ 1 ml —« if · 111 --aJ (锖 Please read the precautions on the reverse side before filling in this page) Figure 3 (b) shows the contents of the header of the sector format of the optical disc according to the embodiment of the present invention. This header is composed of Headerl field,

Header2 field 'Header3 field and Header4'field. These are the same as Headerl, Header2, Header3 'and Header4 with reference to the description. Hereinafter, each of these is described as Headerl, Header2, Header3, and Header4. However, Hea.derl is 46-bit, Header2 is 18-bit, Header3 is 46-bit, and this paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm j 7; _ 71 — Economy Printed by the Central Standards Bureau of the Ministry of Industry, Mze, Industry and Consumer Cooperatives 4 6086 0 a? B7 V. Description of Invention (19)

Header4 is the length of 18 bytes, and the header is all 128 bytes. These Header1, Header2, Header3, and Header4 are composed of VFO, AM, PID, I ED, PA Ministry of Construction. This configuration is described below. The V F 0 part is omitted from the Voltage Frequency Oscillator and the guidance range of P L L (phase locked loop). That is, this VF 0 is read by an optical disc device (as described later) that records and reproduces the information on the optical disc, and is used to read data or control the rotation of the optical disc in synchronization with the reproduction information from the optical disc. The synchronization signal (clock signal) is formed by the continuously repeated data pattern extracted by the PLL circuit of the optical disc device. This data mode locks P L L and completely leads to synchronization. When the clock signal is generated, the code mode of this VFO is also changed along with the rotation of the disc, and it can achieve accurate data reading or data rotation control. This VF 0 part is in Headerl and Header3. As VFO 1, it has 36 bytes. On the other hand, in Header2 and Header4, as VF02, it has 8 bytes. That is, Headerl and Header2 form the first half of the standard. The head is used as the head of the lane section. In the head of the first half, the VF 0 part of Header1 at the beginning is longer than the VF 0 part of Header2 which is continuous with this Headerl laser light. Ground, Header3 and Header4 constitute the second half of the head, which is used as the standard head of the groove section. In the second half of the head, the VFO part of Header3 at the beginning is more continuous than this. China National Sample Car (cns M4 specification (21〇x intestinal epidemic disease) ... (Please read S? Read the lack of attention on the back before filling out this page) .... Order printed by the Bayer Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs t 4 6 0 8 6 0 A7, '_B7 V. The VF 0 part of Header4 of the invention description (20) is long. However, the VFO part of each section passes at least 8 bytes, and can usually be guided by the PLL. The VFO section of Headerl and VF section 0 of Header3 will be less than the beginning of each section. When the VF 0 part of Header2 and VF 0 part of Header4 are long, the guidance of the PLL of VF 0 can be more reliable. Therefore, the header of each segment can be detected with high reliability, and The information is recorded and reproduced correctly. Among them, the length of VF 0 of Headerl, which is equivalent to the beginning of the lane section, is lengthened. In other words, it is particularly effective when recording and reproducing information. That is, at the time of the lane section, it is engraved in the header and the recording section of the lane section of the section number displayed through the header. There is a time difference of 1 week between the moment of entry. Here, if there is a difference between the recording signal period of the 1 cycle of the disc rotation and the N section, the header of the lane section is connected with the header. If the offset between the recording section of the lane section where the section number is displayed is recorded, the entry is recorded. When such an offset occurs between the header and the recording section, the detection of the header is more common. It is more difficult. In addition, the offset of the header is offset, and there is an offset when tracking. When waiting, the quality of the reproduced signal of the recording section of the lane section through which the section number is displayed through the header section is different from that of the recording section, which makes detection of the header section more difficult. However, when jfc waited, the VFO section of Headerl at the beginning of the lane section was long. The guidance of the PLL can be performed with high reliability, and the detection accuracy of the header is improved, and the header can be accurately and reliably performed. Of it. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297mm) '{Please read the precautions on the back before filling this page) Order! ^ 46086 0 a? B7 V. Description of the invention (21) However, A Μ It is the abbreviation of a_ddress Mark, which is a synchronization code with 3 bytes. It is used to determine the realm of the sentence when demodulating. P I D is an abbreviation for Physical ID, which is composed of 1-byte segment information and 3-byte segment number. IED is an abbreviation of ID Error Dectection code. It is a 2-byte code for error detection of P I D 4 bytes. PA is the abbreviation of Post amble. At the time of demodulation, it is a necessary code to determine the state of the previous byte, and has a length of 1 bit. Next, the recording / reproducing disc having the above-mentioned head structure has a raised portion, and a mark head formed by a concave-convex pit is used for recording and reproduction of information, and at the time of reading. Fig. 4 is a block diagram showing the overall configuration of an optical disc device that records and reproduces information on and from an optical disc for recording and reproduction. Printed by the Shellfish Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs --------- ^ Ai-II --- I Order (Notes on the poem first K5, read the back, and then fill out this page) In Figure 4, The optical disc 1 for recording and reproduction of the disc-shaped information storage medium is rotated at a constant linear speed via the spindle motor 3, for example. This spindle motor 3 is controlled via a motor control circuit 4. Recording and reproduction of information on the optical disc 1 is performed via the optical pickup 5. The optical pickup 5 is a drive coil 7 fixed to a movable portion of the linear motor 6, and the drive coil 7 is connected to a linear motor control circuit 8. A speed detection circuit 9 is connected to the linear motor control circuit 8, and the speed signal of the optical pickup 5 detected by the speed detection circuit 9 is sent to the linear motor control circuit 8. A permanent magnet (not shown) is provided on the fixed portion of the linear motor 6, the drive coil 7 is excited via the linear motor control circuit 8, and the optical pickup 5 is moved to the radial direction of the optical disc 1. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -24- 1 460860 Printed by the Central Samples Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperatives. 5. Description of the invention (22) is set on the optical pickup 5, The objective lens 10 supported by the cable or sheet spring shown. This objective lens 10 is driven by the drive coil 11 to move in the focusing direction ('the optical axis of the lens), and driven by the drive coil 12 to the tracking direction (the direction orthogonal to the transparent optical axis). ) Move. Driven by the 'emission control circuit 13', a laser light beam is emitted from the semiconductor laser oscillator 9. The laser control circuit 13 is formed by the modulation circuit 14 and the laser drive circuit 15 and operates in synchronization with the 'recording clock signal' supplied from the P L L circuit 16. The modulation circuit 1 4 is the recording data supplied by the error correction circuit 3 2 to be suitable for recording, for example, the modulation is 8_16 modulation data. The laser driving circuit 15 drives the semiconductor laser oscillator (or argon-neon laser oscillator) by modulating the data corresponding to the modulation circuits 1 to 8 of 16. The PLL circuit 16 divides the basic clock signal oscillated from the quartz oscillator to a frequency corresponding to the recording position on the optical disc 1, thereby generating a clock signal for recording. The reproduced clock signal of the reproduced synchronization code is detected and the frequency of the reproduced clock signal is abnormal. The detection of this abnormal frequency is based on whether the frequency of the reproduction clock signal is within a predetermined frequency range corresponding to the recording position on the optical disc 1 of the reproduced data. In addition, the PLL circuit 16 corresponds to the control signal from the CPU 30 and the signal _ from the data reproduction circuit 18 to the circuit 2 41, and selectively outputs the clock signal for recording or reproduction. From the semiconductor laser The laser beam generated by the oscillator 19 is made by Yuping (please read the precautions on the back before filling in this page). The size of the paper is applicable to China National Standard (CNS) A4 (210X297 mm) -25- Economy Printed by the Central Bureau of Standards, Shellfish Consumer Cooperatives, 4 6 0 8 6 0 A7, _____B7__V. Description of the Invention (23) _ Traveling light tube 2 0, half-three cymbals 2 1, objective lens 1 0, illuminating the optical disc 1 Top. The reflected light from the optical disc 1 is guided to the photodetector through the objective lens 10, the half mirror 2 1, the condenser lens 22 and the cylindrical lens 23. The light detector 2 4 is composed of 4 parts of light. The detection unit 2 4 a, 24b, 24c, and 24d are composed of the optical signal of the photo detection unit 2 4 a to the one of the adder 2 6 a through the amplifier 2 5 a, and the light detection unit 2 4 b. The output signal is supplied to one end of the adder 2 6 b via the amplifier 2 5 b, and the output signal from the light detection unit 2 4 c is transmitted via The amplifier 2 5 c is supplied to one end of the adder 2 6 a, and the output signal of the light detection unit 2 4 d is supplied to one end of the adder 2 6 b through the amplifier 2 5 d. The light detection unit 2 4 a The output signal of is supplied to one end of the adder 2 6 c via the amplifier 2 5 a and the output signal of the light detection unit 2 4 b is supplied to the-end of the adder 2 6 d via the amplifier 2 5 b. The light detection unit The output signal of 2 4 c is supplied to one end of the adder 2 6 d through the amplifier 2 5 c, and the output signal of the light detection unit 2 4 d is supplied to one end of the adder 2 6 c through the amplifier 2 5 d. The output signal of the converter 2 6 a is supplied to the inverting input terminal of the differential amplifier 0 P 2, and the non-inverting input terminal of the differential amplifier 0 P 2 is supplied to the output signal of the adder 2 6 b. The motor amplifier 0 P 2 will output a signal related to the focus point according to the difference between the two output signals of the adders 2 6 a and 2 6 b. Furthermore, this output signal is supplied to the focus control circuit 27. Again, this focus The output signal of the control circuit 27 will be supplied to the focus driving coil 12. By this, Laser light will be available on CD-ROM 1 (read the notes on the back before filling this page) This paper size applies to China National Standard (CNS) A4 (210X297 mm) -26- Central Bureau of Standards, Ministry of Economic Affairs Printed by Fung's Consumer Cooperatives f '4 6 0 8 6 0 A7: B7 V. Description of the invention (24) Best focus control. The output signal of the adder 2 6. c is supplied to the inverting input terminal of the differential amplifier OP 1, and the output signal of the adder 2 6 d is supplied to the non-inverting input terminal of the differential amplifier OP 1. In addition, the differential amplifier OP 1 outputs a signal related to the focus point in accordance with the difference between the two output signals of the adders 2 6 c and 2 6 d, and supplies the output signal to the tracking control circuit 28. In addition, the track control circuit 28 will cooperate with the track difference signal from the differential amplifier 0 P 1 to generate a track driving signal. The track driving signal output from the tracking control circuit 28 is supplied to the driving coil 11 in the tracking direction. The track difference signal used in the tracking control circuit 28 is supplied to the linear motor control circuit 8. By the above-mentioned focus control and tracking control, the output signals of the photodetection units 24a, 24a of the photodetector 24 (1, the sum of the output signals, that is, the two outputs for the adders 2 6 c, 2 6 d The output signal of the adder 2 6 e to which the signal is added corresponds to the recording information and reflects the change in reflectivity from the pits and the like formed on the track of the optical disc 1. The signal will be supplied to the data. The reproduction circuit 18. The data reproduction circuit 18 will reproduce the recorded data based on the reproduction clock signal from the PLL circuit 16. The data reproduction circuit 18 will use the output signal from the adder 2 6e and the data from the PLL circuit 16 The reproduction clock signal is used to detect the segment markers in the preformat data. At the same time, the track number and address information are reproduced from the binary signal based on the binary signal from the PLL circuit 16 and the reproduction clock signal. Section number. This paper uses Chinese National Standard (CNS) A4 size (210X297). I. ^ -------------- Order -------- ti C / !、 (Please pay attention to the notes on the back of wtt before filling out this page) -27- Printed by the Consumers' Cooperative of the Central Bureau of the Ministry of Economic Affairs of the People's Republic of China 4 6 0 8 6 0 a? __________ B7_V. Description of the Invention (25) The reproduced data of the data reproduction circuit 18 is supplied to the error correction circuit 3 via the bus 2 9 2. The error correction circuit 3 2 corrects the error according to the error correction code (ECC) in the reproduced data, or assigns an error correction code (ECC) to the recorded data supplied from the interface circuit 3 5 and outputs it to the recorder 2 The reproduced data that has been erroneously corrected in the error capsule correction circuit 32 will be supplied to the recording medium control device 36 as an external device via the bus 29 and the interface circuit 35. In addition, the recording medium control device 36 will be supplied from the recording medium control device 36. The recorded data will be supplied to the error correction circuit 32 through the interface circuit 35 and the bus 29. When the objective lens 10 is moved by the above-mentioned tracking control circuit 28, the linear motor 6, that is, the optical pickup 5 will The linear motor control circuit 8 moves so that the objective lens 10 can be located near the center position in the optical pickup 5. The D / A converter 31 will be used to control the focus control circuit 27 and the tracking control. Circuit 2 8 Information reception between the linear motor control circuit 8 and the overall CPU 30 of the optical disc device. Motor control circuit 4, linear motor control circuit 8, laser control circuit 15, PLL circuit 16, data reproduction circuit 18, focus control circuit 27, the tracking control circuit 28, the error correction circuit 32, etc. will be controlled by the CPU 30 via the bus 29, and the CPU 30 will perform a predetermined operation according to the program recorded in the recorder 2 . Here, regarding the optical disc device formed by the above structure, the Chinese National Standard (CNS) A4 specification (2) 〇 × 297 mm is applied to the paper size of this paper -------------- Order ----- ih c C (please read the notes on the back before filling this page) -28- Printed by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs; 460860; 5. Description of the invention (26) Record reproduction When recording / reproducing data on an optical disc, the pre-formatted header on this optical disc will be read with reference to FIG. 1-while explaining. In FIG. 1 (a), when the header that must be read as the target is, for example, the header HF 2 of the groove section indicated by the section number # (m), Jiang first performs the header. (2) After reading F2, laser light irradiation of the recording section RF1 of the lane section indicated by the section number # (m-1) is performed. In addition, the laser light spot irradiated to the recording portion R F1 will track the track center of the recording portion RF 1. The tracking of the laser spot is performed in accordance with the tracking control of the optical disc device (see Fig. 4). In the recording section RF 1 of the lane section indicated by the section number # (m-1), the laser light irradiating the center of the track is continuously radiated to the header HF 1 recorded on the optical disc. And HF 2. As mentioned above, the headers HF 1 and HF 2 are composed of 128-bit data. Here, on a disc, if one bit is about 3 // m long, the headers HF 1 and HF 2 have a length of about 400 // m. In addition, if the laser light is irradiated on the disc at a speed of about 6 m / s, the spot of the laser light will pass through the headers HF1 and HF2 at a speed of about 6 7 // s per hour. In such a short period of time, even if the target head changes to a jagged shape as shown in Fig. 1 / because the range of the tracking control system is too narrow, the light spot cannot track. Therefore, the light spot only needs to trace the imaginary track center. Although this imaginary track center is different from each of the regular track centers of the heads HF 1 and HF 2, the paper size is applicable to China National Standard (CNS) Α4 specification (210X297 mm) ~ (Please read the note on the back first) Please fill in this page for further information) -29-Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperative, f 460860 ^ d7 V. Description of the invention (27) Same, but with preformatted bits in the header HF 1 and HF 2 Address information and other information can be fully read. In addition, after reading the target heads H F.1 and HF 2, the laser light irradiated from the optical pickup passes through the mirror face, chases the center of the track, and then irradiates the section number # (m) and the recording section RF 6 of the groove section. In this case / after the headers HF 1 and HF 2, the recording section of the section to which the laser light is radiated is the recording section R F 6 of the groove section. In addition, as described above, the header used in the groove section is the latter header composed of Header3 and Header4, and the headers HF 1 and HF 2 read in advance have the headers. The header HF2 is the second half header. Therefore, the header of the recording portion RF 6 uses the second half header HF2, and the address information of the record portion RF6 is expressed based on the second half header HF2. As described above, in the optical disc of the present invention, a header portion arranged in a zigzag shape is formed. Fig. 5 is a schematic diagram showing the jagged header and the surrounding structure of the header. In FIG. 5, the upper part indicates the direction corresponding to the inner peripheral side on the optical disc, and the lower part indicates the direction corresponding to the outer peripheral side on the optical disc. Therefore, the vertical direction corresponds to the radial direction on the optical disc. In addition, in FIG. 5, the sector addresses are sectors from 3000011 to 30 1 3 3 h. Here, the letter h after the number indicates the abbreviation of hexadecimal, which is a 16-bit number. In addition, in FIG. 5, the 16-bit portion is used as a recording portion, and the digital portion to which the character h is not added is used as a header. In addition, in the recording section of each zone, if the zone address is 30 00 h, 30 01 h, 30010 h, the paper size applies the Chinese National Standard (CNS) A4 (210X297 mm) (锖Read the lack of attention on the back before filling in this page) y 'order -30- A7 4 6 0 8 6 0 B7 The work of the Central Standards Bureau of the Ministry of Economic Affairs «· Cooperation Du Yin 褽 5. Invention Description (28) 30022h, 30023h · ·· To show, this section is a groove section. In addition, if the segment address is 3001 lh, 30012h, 30021h, 30 0 3 3h, 3 0 0 3 4 h —..., this segment is a lane segment. At this moment, the header indicated by the number and the recording section with the number h appended to the number indicating the header will form a pair and form the same section. In the drawing, if the header of the number 30000 is described as (30000h), the recording part of the groove section of the number 30,000h is described as (30000h) record. In the case of the recording unit, the head of the U (30000h) mark and the (30000h) groove section · recording section will be paired to form the same section. In this case, in the header of (3 0 0 0 0 h), the segment information of the segment address 3 0 0 0 0 h will be recorded by pre-formatting. The user can change the segment information according to the segment address 3 0 The information shown at 0 0 0 h is recorded in the (3 00 0 0 h) groove section and recording section. The structure of the header in FIG. 5 is the same as the structure of the header in FIG. 1 "Here, the optical disc formed with the structure shown in FIG. 5 is the same as that described in FIG. 1. If the track is looking for a spiral, the polarity of the track can be alternately formed in the magnetic track every one week without jumping the track, that is, the lanes and grooves are alternately converted between each other. In the case of FIG. 5, the number of sectors per track is 17 (1: 1 h in hexadecimal). When the track is circled for one cycle, the sector address of the track adjacent to the outer side will be Increase only 1 7. For example, the section address of the section adjacent to the section on the outer side of the section with the address of 3 00 0 h is the paper standard applicable to China National Standard (CNS) A4 (210X297 mm) Central Standard of the Ministry of Economy Printed by the Bureau ’s Consumer Cooperatives 4 6086 0 3; V. Description of the Invention (29) 3 0 0 1 1 h ° In Figure 5, the segment addresses are 3 0000h, 30 0 1 lh, 3002 2h, 30033h · · · of The section is a section where the polarity of the track is switched, and is the first section described above. In addition, the section addresses are 30010h, 30021li, 30032h, 300 4 311 ···, and the section addresses are 30001h, 30012h, 3 00 23h, 30034h ···, which are other than the first section. Section. As described above, for the way that the lanes and grooves alternate between each other in the magnetic track every week, the polarity of the so-called grooves or lanes must be converted during the tracking. Different configurations of the sectors. Here, by pre-formatting, for example, the address number 3 0 0 1 1 h is recorded in the header of the first half mark of the (3 3 0 0 0 h) groove section and the recording section, and (3 3 0 0 0 0 h) The address number 30000h is recorded in the header of the second half of the groove section and recording section. In addition, since the (30000h) groove section / recording section is a groove area, the address number 3000011 recorded in the header of the second half of the mark forms the section address. On the other hand, with the pre-formatting, for example, the address number 30 01 lh is recorded in the header of the first half of the (3 0 0 1 1 h) lane section and the recording unit, and the (3 0 01 lh) lane In the header of the second half of the section and recording section, the address number 30 0 22h is recorded. Also, because the (3 00 1 1 h) lane section and the recording section are in the area of the alley, it is recorded in the first half of the header section. The address number 3 0 0 11 h forms the sector address. {Please read the notes on the back before filling in this page) This paper size uses the Chinese National Standard (CNS) A4 size (210X297 mm) • 32, Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 46086 0 A7 ___B7_ V. Description of the invention (30) In addition, if the positional relationship of the jagged head is described by the condition of the groove section, the head of the first half of the mark will be Wobble, and the head of the second half of the mark will be formed. It is the relationship of the inner wave. That is, for the position of the magnetic track of the groove section, the first half of the head is set in a positional relationship that is offset by only half the track distance from the outer peripheral side of the disk, and the second half of the head is set only by the offset. The half-track is positioned on the inner peripheral side of the magnetic disk to be set. In contrast, in the case of the lane section, it is the opposite of the situation in the groove section, that is, the relationship between the head of the first half of the standard is inside fluctuations, and the head of the second half of the standard is outside fluctuations: For each week of the magnetic track In terms of the way in which the lanes are alternately switched between each other, the polarity of the so-called trenches or lanes must be changed when tracking. The timing of this polarity conversion is performed based on the reading of the header. That is, according to the information obtained by reading the header, before determining the track of the recording section following the header, the recording section is identified as a lane area or a groove area, and then converted into a predetermined area. "Polarity" If, based on the information obtained from the header of the standard, the subsequent recording unit is identified as the lane area, the recording unit will be tracked with the tracking polarity of the lane area. In addition, if the following recording unit is identified as the groove area based on the information obtained from the head of the target, the recording unit will be tracked with the tracking polarity of the groove area. Also, the tracking polarity will be described with reference to FIG. 1. If it is converted, the tracking polarity is changed: it is performed when the position where the laser light is irradiated on the magnetic disk is a mirror surface. In the case of specifying the position of this mirror face, 'is also the information obtained from the self-standard head', that is, as long as the paper size is correctly read, the Chinese national standard (CNS > A4 specification (210X297 公 嫠) ( (Please read the notes on the back before filling this page) ^. • • 33-Printed by the Central Standards Bureau of the Ministry of Economic Affairs and Consumer Cooperatives 4 6 Ο 8 6 Ο Α7 * _______ Β7 ___ V. Description of Invention (31) Any information of Headerl, Header2, Header3, and Header4 can calculate the position of the mirror surface from the read position, thereby specifying the position of the mirror surface. For example, the reading of Headerl is performed normally At that time, the number of bits is calculated from the moment the reading of Headerl is finished. Here, because the format of the header section is scheduled as shown in Figure 3, it is determined by the number of bits. The remaining bits on the mirror surface are also predetermined. Therefore, as long as the predetermined number of bits from the moment the reading of Headerl is finished, it can be determined that laser light is irradiated on the mirror surface, and here Enter Tracking polarity conversion. After the mirror surface has converted the tracking polarity to a predetermined polarity, the tracking of the lane or groove is performed. When the lane / ditch polarity is changed in this way, the above-mentioned inner and outer fluctuations can be changed. The relationship between is used in the detection of this switching timing. In the following, the configuration for detecting the lane / ditch polarity switching timing using the relationship between the inside and outside fluctuations will be described. The timing of detecting this lane / ditch polarity switching will be described below. Photodetector 24 is used in Fig. 4. This photodetector 24 is composed of 4 parts of photodetection units 24a, 24b, 24c, and 24d. In addition, the output signal of photodetection unit 24a The output signal of the light detection unit 2 4 b is added by the adder 2 6 c, and the output signal of the light detection unit 2 4 c and the output signal of the light detection unit 2 4 d are added by the adder. 2 6 to perform the adding process. The output signal of the adder 2 6 c is supplied to the inverting input terminal of the differential amplifier OP 1, and the non-inverting input terminal of the differential amplifier 0P 1 (please read the back of the first Precautions again Fill in this page) This paper size is applicable to China National Standard (CNS) A4 size (210X297 gong) -34- 4 6 0 8 60 A7 B7 32) Supply the output signal of the adder 2 6 d. In addition, the differential amplifier 0 p 1 will cooperate with the difference between the output signals of the adders 2 6 c and 2 6 d to output the signal about the focus point. The signal is supplied to the tracking control circuit 28. In addition, the track control circuit 28 will cooperate with the track difference signal from the differential amplifier 0P 1 to make a track driving signal. The track driving signal output from the self-tracking #control circuit 2 8 is supplied to the drive coil 11 in the tracking direction, or the track difference signal used in the tracking control circuit 2 8 is supplied to the linear motor control circuit 8, whereby For tracking control. Here, if the light detection unit 2 4 a is divided into a first light detection unit pair consisting of the light detection unit 2 4 a and the light detection unit 2 4 b, and the light detection unit 2 4 c and the light detection unit 2 If the second photodetection unit pair constituted by 4d, the two photodetection unit pairs will be divided along the recording track direction of the disc. For explanation, in the photodetection units divided into two groups, a first photodetection unit pair is provided corresponding to the outer peripheral side of the recording track, and the output signal from the first photodetection unit pair is set to A. In the photodetection units divided into two groups, a second photodetection unit pair is provided corresponding to the inner peripheral side of the recording track, and the output signal from the second photodetection unit pair is set to B. As a result, when the light beam is irradiated following the magnetic track, the output of the signal A increases while the output of the signal B decreases when the light beam passes through the selective head after it fluctuates on the outer peripheral side. On the other hand, when the light beam passes through the header that fluctuates on the inner peripheral side, the output of signal B will increase and the output of signal A will decrease (please read the precautions on the back side before filling this page)

T This paper size applies to Chinese national standards (CNS > A4 size (210X297 mm) • 35- 460860 Beige Consumer Cooperatives, Central Standards Bureau of the Ministry of Economic Affairs. Sincerely, the invention description (33) is less.-. Here, if If there is a difference between the two signals, that is, the (A-B) signal, the part that fluctuates on the outer side is formed (A-B) > 0, and the part that fluctuates on the inner side is formed (A._B) < 0, other than (A — B) = 0. Here, the state of (A — B) > 0 is represented by “+”, and (A — B) is represented by “_”. The state of 0 is represented by "0" (A-B_) = 0. If the (A-B) signal output from the photodetector 24 is used, when the light beam passes through the groove section, it is moving toward the Before the recording section of this groove section is irradiated with the light beam, the (A — B) signal output is changed from “+” to “—”. On the other hand, when the light beam passes through the lane section, it is recorded in the lane section. Before the part irradiates the light beam, the (A — B) signal output is changed from ^ — ”to Γ +”. Therefore, this can be monitored by the tracking control circuit via the differential amplifier 0P 1 (A-B) The polarity of the signal output changes, and then the lane / ditch detection and the timing of the lane / ditch polarity change can be detected by the processing of the CPU 30. That is, the above-mentioned (A-B) signal output In order to change from "+" to "-", the recording section that can detect the next irradiated beam is the recording section of the groove section. The groove section at this moment is the groove section poem of the first section. Tracking control is normally performed, and the tracking polarity is changed from the lane polarity to the groove polarity. Also, as for P, when the above (A-B) signal output is changed from "one" to "+", the connection can be detected. The recording section of the irradiated light beam is the recording section of the lane section. At this moment, the lane section is the lane section of section 1 (please read the note on the back side before filling this page) The paper size is applicable China National Standards (CNS) A4 specification (210X297 gong) -36- Printed by the Shellfish Consumer Cooperative of the Central Bureau of the Ministry of Economic Affairs 4 6 0 8 6 0 B7 V. Description of the invention (34), in order to track normally Control, and change the tracking polarity from ditch polarity to lane polarity. The timing of lane / ditch polarity transition can be detected by using the polarity change of the (A-B) signal output. Secondly, the recording information in the header of the disc that is recorded by pre-formatting will be explained. That is, the method of detecting the timing of lane / ditch polarity change by the segment type and bit in the header. Before explaining, the structure shown in FIG. 5 is described. It has a zigzag shape as shown in FIG. 5. In the optical disc with the head, the use of the sequential arrangement of the sector addresses already described in FIG. 1 described above enables the grooves of the single-helix structured magnetic disc to be completed in one pass from the inner periphery to the outer periphery. Continuous movement of records). The recording signal at the time of the slot is sent out from the formatting circuit 49 of the original disk recording device shown in FIG. 2 in the following order, and is transmitted through the beam modulation system 44 (by the Ε · 0 modulator 44a, 4 4 b) control to groove according to the sequential arrangement of the above-mentioned sector addresses. The sending order of this recording signal is: "(3001 1 h) header-(3 0 0 0 0 h) header Department— (3 0 0 0 0 h) groove section • Recording Department— ··· — (30021h) header— (30010h) header— (3001011) groove section • Recording section—1 week blank (30033h ) Header— (30022h) Header 3 0 0 2 2 h) Groove section • Recording section—Omitted below. " Here, the specific content of the header of (3 0 0 1 1 h), if you refer to this paper standard, the Chinese National Standard (CMS) A4 specification (210X297 cm) is applicable-^ --------- ' Λ name-.C (please read the notes on the reverse side before filling out this page) Order • 37 · Printed by the Central Consumers Bureau of Ministry of Economic Affairs, Consumer Cooperatives

A7, _4 6 0 8 6 0 __ £ 7 ___ V. Description of the invention (35) Figure 3 (.b) To explain, the lower 3-bit record 03001 that is formed in the PID 1 part (4-bit) of Headerl 03001 lh, at the same time, the embossed header of 030011h is recorded in the lower 3 bits of the PID 2 (4 bits) of Header2, and the specific content of the header (30000h) is formed in the PID 3 of Header3 (4 The lower 3 bits of the bit) are recorded at 0 3 0 0 0 0 h, and the lower 3 bits of the PID 4 part (4 bits) of Header 4 are recorded at the head of the embossed mark at 0 3 0 0 0 0 h. With this, according to the sequential arrangement of the above-mentioned sector addresses, a single spiral spiral groove recording magnetic disk can be made. In addition, the sector addresses in this magnetic disc are continuous, and comprehensive processing can be performed without track jumping or searching at all during continuous recording and reproduction. However, in fact, in the above-mentioned single-helix-type groove recording magnetic disc, in order to perform the tracking control operation correctly, it is necessary to switch the tracking polarity every other week. That is, in FIG. 5, for the (3 0 0 1 0 h) groove section and the recording section, although the tracking polarity is the groove polarity, then • the part illuminated by the light beam is at (3 0 0 1 1 h) The track head must be tracked with the groove polarity and in the (3 0 0 1 1 h) lane section • recording section. In addition to the method of using the above-mentioned (A-B) signal polarity for this tracking polarity conversion, there are also methods using the segment type and bit in the header below. Figure 3 (b) shows the contents of the PID section in the header, and PID1 is set in Header1, and PID is set in Header2 (Please read the precautions on the back before filling this page) This paper standard applies to Chinese national standards Rate (CNS > A4 specification (210X297)) -38- A7 B7 460860 V. Description of the invention (36) 2 parts, 3 PIDs in Header 3, 4 PIDs in Header 4. Also, each PID The department is composed of 32 bits (4 bytes) of information. Each bit is represented by b 3 1 ~ b 0, and b 3 1 is set as the most significant bit (MSB), and b 0 is set. Is the least significant bit (L · SB). Among b 3 1 to b 0 constituting the PID section, 8 bits (1 byte) of b 3 1 to b 2 4 are recorded section information, that is, recorded Part of the information about the segment. In addition, the 24-bit (3 bytes) of b23 ~ b〇 is used to record the segment number, that is, the part to record the information about the segment address. The following section will explain the segment. The content of the information. B 3 1 and b 3 0 are reserved, for example, temporarily record 07, and the rest is used as a preparatory part when recording information in the future. In addition, the character b after the number 0 0 in the above 〇b is the abbreviation of binary (binary). Also, b29 and b28 represent the physical ID number. If it is a PID, then 0 ab is recorded. If it is PID 2 If it is p ID 3, then it will record 1 0 b, if it is PID 4, it will record lib. Also, b 2 7 to b 2 5 are section-type parts. For the read-only sector, record 0 0 0 b, if it is possible to write the first sector ', then record 1 0 0 b, and if it is the possible final sector, record 1 0 1 b, If it is the first writeable segment before the final segment, record 1 1 0 b, if it is another segment, record 1 1 1 b ° Also, 001b ~ 01 lb is set for reservation "This paper uses the Chinese National Standard (CNS) Α4 size (210x297 mm). Please read it first, and read the precautions on the reverse side. Printed by Shellfish Consumer Cooperative of Central Standards Bureau of the Ministry of Economic Affairs 4 60 86 0 A7, ___B7__ V. Description of Invention (37) Here, the so-called read-only area , Refers to the section in which the data section is actually formed in the embossing, such as the writing field part, etc. The so-called first section refers to the groove to the lane, or the lane to the groove. Ground switching tracks the polarity of the sector. The term “final segment” refers to a segment preceding the first segment. In the example of FIG. 5, the sector shown by the sector addresses of 30000h, 30011h, 30022h, 30033h, ... is the first sector in which writing is possible. In addition, the sectors shown according to the sector addresses of 30010h, 3002 1h, 3 0 0 3 2 h, 3 0 0 4 3 h, ... are the final sectors that can be written. In addition, the sectors indicated by the sector addresses of 3000Fh, 30020h, 3 0 0 31h, 3 0 0 2 2 h, ... are the first possible writing sectors of the final sector. As a result, it is possible to generate the timing of writing the first sector, which is required when the polarity of the trace is changed by the sector type bit (the part representing such a sector type). That is, the P ID section inside the header is read to determine the type of the section, and the tracking polarity is switched according to the determined type of the section. In addition, even when the first sector cannot be detected, the transition timing can be generated from the last final sector of the sector, or the first sector of the final sector that can be written into. Switch tracking polarity. With the detection of this tracking polarity switching timing, the detected first segment is generally shown in Figure 3, (b), and the error detection can be performed by adding a 2-byte I E D part. Therefore, it will be possible to perform the detection of the first segment of the conversion possible with high reliability, and to apply the Chinese National Standard (CNS) A4 specification (210X297 mm) to the paper size of the single spiral disk. (Please first Read the notes on the back and fill in this page again) 40-Printed by the Central Laboratories of the Ministry of Economic Affairs, Shellfish Consumer Cooperative, 4 6 0 8 6 0 B7 V. Inventive note _ (38) can realize stable tracking polarity conversion. · It is also possible to use the PID section consisting of PID 1 and PID 2 as the first half PID section, and the PID section consisting of PID 3 and PID 4 as the second half PID section, and then compare and record The 値 of the sector address in the first half of the PID section and the 値 of the sector address recorded in the second half of the PID section can be used to change the tracking polarity. That is, for example, for the (3 0 0 0 h) groove section and recording unit, the head of the first half of the header is the head of (3001 lh), and the head of the second half of the header is the head of (3 0 0 0 0 h). unit. Here, in the header of the first half of the header (3 0 0 1 1 h), a first half P ID section is recorded with the sector address 30 0.11 h recorded. In addition, in the header of the header of the second half (30000h), a second half of the PID section in which the sector address 30000h is recorded is provided. The segment address 3 0 0 1 1 h recorded in the head of the previous half mark is larger than the segment address 3 0 0 0 0 h recorded in the head of the second half mark. All of the 5 ditch sections are established. Therefore, by irradiating the beam on the header, the address of the first half of the PID section and the address of the second half of the PID section can be read out, and the 値 of these section addresses is compared. When it is large, the recording portion to be irradiated with the light beam later can be judged as the recording portion of the groove section, so that it can be used for tracking polarity conversion. On the other hand, the same is true for the lane section. For example, for the (300 1 1 h) lane section and recording department, the head of the first half of the mark is (^ Paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) (谙 Read the precautions on the back first) (Fill in this page again) -41-Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs, India Ben 460860 V. Description of the invention (39) 30011 h) The header, the second half of the header is (3 0022h) header. Here, in the header of the first half of the header (30011 h), a first half P i D section is recorded with a sector address of 3001 l h. In the header of the second half of the header (30022h), a 'PID' section in the second half of the segment address 3 0 0 2 2 h is recorded. The sector address 3 0 0 1 1 h recorded at the head of the first half mark is larger than the sector address 3 0 0 2 2 h recorded at the head of the second half. This relationship holds in all the groove sections having the constitution of FIG. 5. Therefore, by irradiating the beam on the header, the address of the first half of the PID section and the address of the second half of the PID section can be read, and the 値 of these section addresses is compared. When it is small, the recording section to be irradiated with the light beam later can be judged as the recording section of the lane section, so that it can be used for tracking polarity conversion. Here, the case where the above-mentioned conversion of the tracking polarity cannot be performed smoothly, or the conversion of the tracking polarity cannot be performed as intended, and the case where the magnetic track is automatically tracked will be explained. For example, in the first section shown in FIG. 5, a beam is passed between the (3 0 0 2 1 11) lane section • recording section to the (3 0 2 2 h) groove section • recording section. When tracking is performed, usually as described above, the track center of the lane track is scanned by the light spot of the beam in the (3 0 2 1 h) lane section. In addition, in the jagged header formed by the (30033h) header and the (3002) header, the beam is tracked along the center line of these headers. In addition, in the (3 0 02 2 h) groove section and recording section, the Chinese national standard (CNS > A4 specification (2) 0 > < 297 mm) is applied to the polarity of the paper in the tracking polarity first ( (锖 M-Read the notes on the back before filling this page)

T1: .... -42- Consumers 'Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs, A7' B7 V. Description of the invention (40) After the lane polarity is converted to the groove polarity, the light beam spot is used to scan the groove track. Track center. At this moment, after the beam passes through the above-mentioned jagged head, the tracking polarity does not change from the lane polarity to the groove polarity, the beam spot will be controlled in pairs (3001 1h) lane section • recording section, or (30033h) lane One of the section and recording sections is tracking, which leads to a deviation from the normal track tracking state. Whether the light spot in this case is to control the tracking of that party depends on factors such as the eccentric state of the disc at that time and the state of the track deviation, and cannot be predicted in advance. Here, when the light spot of the light beam is caused to follow the magnetic track, a slight offset is applied so as not to hinder the recording and reproduction characteristics. That is, when the light spot of the light beam traces the spiral lane and groove track from the inner peripheral side to the outer peripheral side of the magnetic track, it is slightly closer to the inner side of the disk than the track center of the lane and groove track. Scan at the position on the side. In this way, when the tracking polarity is not changed as described above, the lanes will be recorded from the (3 0 2 1 h) lane section to the (3 0 0 11 h) lane section through the zigzag header. To perform tracking control. After this tracking control, track lanes are tracked every week from (30011h) lane section and recording department, and then back to (30021h) lane section and recording department. Therefore, by intentionally imposing a slight deviation on the inner peripheral side of the optical disc so as not to hinder the recording and reproduction characteristics, it can be shown as 30011h, 30012h,... 300201ι, 3 0021h, 30031h. The section order of the section address This paper standard is applicable to the Chinese National Standard (CNS) A4 regulations (210X297 mm) 4 6086 0 I.; --------, 丨 > --------- Order ------ f " (Please read the precautions on the reverse side before filling out this page) -43-Printed by the Central Laboratories of the Ministry of Economic Affairs, Shellfish Consumer Cooperatives Co., Ltd. 460860 II B7 V. Description of the invention (41) The light spot can be scanned while maintaining the same magnetic track, and can be prevented from escaping from the normal tracking control even when the tracking volatile changeover or the tracking polarity changeover cannot be performed smoothly. Further, in FIG. 5, an embossed data area is displayed on the inner peripheral side of the disc in a data area that is more likely to be written than the update with the zigzag header structure. This embossed data area is a read-only data area. Instead of recording the data by updating the sector formatting of the zigzag header structure that may be written, it is to read the dedicated disk sector. Format to record information. In this embossed material field, data is recorded based on embossing formed by uneven pits. Furthermore, a combination area composed of a mirror surface is provided between the embossed data area and the update writing possible data area. Moreover, in the field of such embossed data, for example, reference signals, physical formatting information, disk manufacturing information, and disk supplier information are recorded, and it is used as a conventional read-only player to read information. Write field. In this way, even when the information recorded by formatting with a sawtooth-shaped header format cannot be read out by a conventional read-only player, it is still easy to identify the disk. The optical disc with the above-mentioned jagged header is most preferably used in combination with a so-called domain CLV method or a domain CAV method when performing lane recording. That is, with the formation of a single spiral structure with a sawtooth-shaped header, information can be recorded in the lanes and grooves to increase the recording capacity, and the data can be stored on the magnetic disk in a short time. take. On the other hand, in terms of the domain CLV method or the domain CAV method, since the paper size of the spindle motor can be adapted to the Chinese National Standard (CNS) A4 specification (210X297 male f) (Jing first read the precautions on the back before filling in this page ) "

-* 1T 卞 · -44-Printed by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (460860; B7 V. Description of the invention (42) The revolution control is simplified, so it is suitable for high-speed data access. In addition to using In addition to the domain C LV method and the domain CAV method, coupled with the single spiral structure with the above-mentioned zigzag-shaped header, the access speed can be improved. As shown in FIG. 6 in general, for example, in the domain CLV method, The surface of the optical disc 1 is divided into a plurality of annular regions Z 0, Z 1, ··· Z 2 3. Information is recorded in each of the divided annular regions, and the information is provided with a zigzag shape. The single spiral structure segment of the header is formatted for recording. Moreover, the number of disk rotations is switched for each divided area, so that it can be controlled to a certain linear speed on the disk surface. Since information can be read at a certain linear speed, high-speed data access is possible. However, in the case of recording and reproduction across a field, the number of revolutions of the spindle motor must be changed. For example, the field has When the recording area is defective and cannot be reproduced, if the reserved areas (ie, alternate areas) of the information to be written in the areas are not in the same area, the recording and reproduction must be performed across the areas. However, it is necessary to change the number of revolutions of the spindle motor. However, when changing the number of revolutions of the motor, the time required for the number of revolutions to reach a stable state must take a long time, and as a result, the access time of data will be lengthened. In order to solve this defect, reserved areas are set up in each area. For example, in the above-mentioned area divided into 24 parts, that is, in the areas of Z1, Z2, and Z23, respectively, in The reserved areas SO, S1, · · .S23 are set on the outer side of each field. This paper size applies to China National Standard (CNS) A4 (210X297 mm) '— II --- I! ≫ Clothing — I . ,,, κ- (谙 Please read the notes on the back before filling this page) Order-• Λ— -45- 4 6 0 8 6 0 A7 ____ B7 V. Description of the invention (43) bcHH) ssss oslr owm sm

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-46- 4 6086 0 A7 B7 V. Description of the invention (44) In Table 1, the area code 0, 1, ··· 23 indicates the number of each area corresponding to the above-mentioned areas Z〇, Z1, ··· . In addition, the number of sectors indicates the number of sectors per track, and each sector is shifted outward to increase one sector. In addition, the first sector number indicates the sector number of the first sector in each field, that is, the 16-bit sector address. The number of the buffer area in the inner peripheral side indicates the number of the buffer area provided in the inner peripheral side of each area. The "buffered domain" refers to a domain that is set in the realm of domains and domains, and does not record data. Also, the data domain sector number refers to the sector number of the domain where the user can record data. In addition, the amount of data in this area is accumulated when calculating the capacity of the disk. In addition, the number of data blocks indicates how many E C C blocks (16 physical blocks) have been entered with 10 rounds in the field where the user can record data. Printed by the Shell Standard Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page). In addition, the reserved section number indicates that the number of reserved areas in each field is displayed with a rounding of 10. The section number of the reserved section. In addition, it can be known from this example that the larger the sector number is, the more the sector will be set on the outer peripheral side of the magneto-optical magneto. Therefore, the above reserved area will also be set on the outer peripheral side of each field. In addition, the number of reserved sectors is the number of sectors in the reserved area indicated by a round of 10. In addition, the number of the buffer areas in the outer peripheral side indicates the number of the buffer areas provided in the outer peripheral side of each area. The final sector number is rounded to 16 bits. The final sector number of the field shown. In addition, the number of the beginning block of L B A is the beginning number of the logical block address indicated by a round of 10. Here, the so-called data field number of the beginning section refers to the application of the Chinese National Standard (CNS) A4 specification (210X297 mm) to the paper size in 16-bit format. 47-460860 V. Description of the invention (45) L BA An offset of 3 1 00 h is added to the segment number, that is, a hexadecimal representation of 10 plus 200740. As described above, according to the embodiment of the present invention, since a reserved field is provided in each field, the alternate processing can be performed without changing the number of rotations of the disc, so data access can be shortened. time. In the case of the i 1 embodiment, each field is composed of 1 88 magnetic tracks. In this case, the number of disk rotations during the alternate processing does not change, and it is only necessary to find the maximum 1888 magnetic track. Fig. 7 is a schematic diagram showing the structure of the header portion of a sector of a recording and reproducing optical disc according to a modified embodiment of the present invention. "An optical disc having a header having the configuration shown in Fig. 7 is formed. If it is in line, the polarity of the trace can be alternately formed in the magnetic track every week without jumping the track. That is, the lanes and grooves are alternately formed between each other. This configuration will be described below. Fig. 7 shows the structure of the header of the segment tracking the transition point of the polarity. Here, the section that tracks the transition point of the polarity is called the first section. Printed by the Shellfish Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (please fill in this page before reading the notes on the back). It is based on Headerl, H_eader2, Header3, Header4. The formed area, and the address information about a predetermined sector is recorded based on the uneven shape. The information recording field shown by R F 1 to R F 9 is, for example, a field composed of a phase-change type recording film, and is referred to as a recording section in the following. In addition, in the case of a film of a phase change type, in the case of a film, a user records and reproduces information by using a difference in reflectance formed by changes in optical characteristics of a crystalline state and an amorphous state of the recording film. And, in this record department, RF 6 ~ This paper size is in accordance with Chinese national standard (CNS > A4 specification (210X297mm) -48- 4 6 0 8 6 0 A7 B7 Central Sample Bureau of the Ministry of Economic Affairs Shellfish Consumer Cooperative Printed 5. Description of the invention (46) RF 9 indicates a recording section where a guide groove is formed, and is hereinafter referred to as a recording section of a groove section. On the other hand, RF1 to RF4 indicate that they are not provided adjacent to each other. The recording section of the guide section of the groove section is referred to as the recording section of the lane section in the following. In addition, in FIG. 7, the upper part indicates the direction corresponding to the outer peripheral side on the optical disc, and the lower part Indicates the direction corresponding to the inner peripheral side on the disc. Therefore, the up-down direction corresponds to the radial direction on the disc. In addition, # (m + N) indicates the sector number of the sector address. Here, m is In addition, N is the number of sectors per track, for example, a predetermined integer from 17 to 40. Hereinafter, FIG. 7 will be described in more detail. Here, FIG. 7 has: a sector number # m ， # (m + N) * # (m + 2 N), # (m + 3N) and other 4 sectors Section. The header of this first section is formed into a 4-layer writing structure based on the above-mentioned grooves. And the sections of the header that are written with 4 layers are Header 1, Header 2, Header 3, Header4. Moreover, Headerl and Header2 form the first half of the header, and Headed and Header4 form the second half of the header. Among them, the former half of the header is used as the header of the lane section, and the later half of the header is used as the groove. The header of the sector is used. More specifically, that is, the recording section RF 2 for the lane sector # (m + N) regarding the address indicated by the sector number # (m + N). In other words, in the opening part, the second half of the head HF 2 set via the Mirror field (hereinafter referred to as the mirror surface) will be used as the head of the segment. After this moment, the half of the head HF 2 is : Recorded by (锖 Please read the notes on the back before filling this page) Λ.

.IT This paper size is applicable to China National Standards (CNS) A4 specifications (210X297 mm) -49-Printed by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 4 6086 0 a? R _____B7 V. Description of Invention (47) Address Information (section number # (m + N)) Header3 and HeadeM constitute the second half of the header ", and the second half of the header HF 2 is for the recording section formed with lane section # (m + N) As for the position of RF 2, it is formed at a position that moves only half a gauge distance on the outer peripheral side, that is, it is formed at a position that changes position by parallel movement. Here, the so-called gauge means The distance from the center of the alley to the center of the alley between the alley and the groove is the distance indicated by the symbol P in Fig. 7. In addition, regarding the address indicated by the sector number # (m), For the recording section RF 2 of the groove section # (m), in the opening part, a front half mark head HF1 is provided through a space occupied by the rear half mark head HF 2 while passing through a mirror face. It will be used as the header of the section. Before this moment, the half header HF 1 was: Header1 and Header2 of the header information (section number # (m)). That is, the header HF 1 of the previous header will display the address information and The address information of the 1-week difference of the magnetic track. Also, the former half mark head HF 1 is formed on the outer peripheral side of the recording portion RF 6 where the groove section # (m) is formed. The recording section RF 6 of the ditch section # (m) is formed adjacent to the recording section RF2 of the lane section # (m + N). That is, the ditch section # (m) The recording section RF 6 is for the recording section RF 2 of the lane section # (m + N), and is formed on the inner peripheral side only by a distance of 1 gauge. The second half of the head HF 2 is formed continuously according to the above grooves, and the header 2 of the first half of the head HF 1 and the second half of the f-scale are applicable. SS3NMM CNS) A4% # (210X297 mm) ------- -衣 — (Jing first read the notes on the back before filling out this page) Order • 50-Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Printing Industry Cooperatives f 4 6086 0 A7 ___ B7 _V. Description of the invention (48) Head of the header HF Header3 of 2 will be placed close together. With this configuration, both the front half header H F 1 and the rear half header HF 2 will be paired with each other to form a jagged header structure. In addition, the records of the lane section # (m — 1) whose address is shown in accordance with the section number # (m) of the previous section number of the recording section RF 6 of the groove section # (m) are all RF 1 , Which is tied to the beginning of the header (the second half of the header HF 2) of the groove section # (m), that is, between the header and the Header3, is formed in the space occupied by the first half of the header HF1. On the same track as the recording section RF 6 of the groove section # (m), the first 1 of the section number # (m + N) of the recording section RF 2 of the lane section # (m + N) is the same. The recording section RF7 of the groove section # (m + N — 1), which is indicated by the address of each section number, is attached to the header (front half head HF 1) of the lane section # (m + N). The beginning part, that is, the part adjacent to the Headerl part, is formed on the same track as the recording part RF 2 of the lane section # (m + N). [Effects of the Invention] Since the optical disc for recording and reproduction of the present invention is formed by the above-mentioned structure, it has a large recording capacity, and can access desired data at high speed, and at the same time, with high reliability. To record and reproduce accurate and high-speed continuous data. In addition, the optical disc device of the present invention can record and reproduce accurate and high-speed data on an optical disc for recording and reproduction at a job. (Please read the notes on the back before filling out this page) This paper size is applicable to China National Standard (CNS) A4 now (210X297mm) Printed by the Central Consumers ’Bureau of the Ministry of Economic Affairs, Consumer Cooperatives ^ 4 6086 0 A7 __ _ B7 _'V. Description of the invention (49) _ \ [Brief description of the drawing] Fig. 1 is a schematic diagram showing the structure of the header portion of a sector of a recording / reproduction optical disc according to an embodiment of the present invention. The figure shows an original disc recording device for recording on a wide disc a concave-convex shape corresponding to a groove or a groove formed by cutting when the optical disc for recording and reproduction according to the embodiment of the present invention is manufactured. Fig. 3 (a) shows the overall structure of a sector of a recording / reproduction optical disc according to an embodiment of the present invention. Fig. 3 (b) is a detailed diagram showing the header in this section. "Fig. 4 is a diagram showing the entire structure of an optical disc device for recording and reproducing information on the optical disc for recording and reproduction according to the embodiment of the present invention. Illustration. Fig. 5 is a schematic diagram showing a jagged header portion and a structure around the header portion according to the embodiment of the present invention. Fig. 6 is a schematic diagram showing a case where the optical disc for recording and reproduction according to the embodiment of the present invention is divided into a plurality of circular areas. Fig. 7 is a schematic diagram showing the structure of a header portion of a sector of a recording / reproduction optical disc according to a modified embodiment of the present invention. [Description of drawing number] Recording field, 30000h, 30001h · · ·: Recording section RFl ~ RF4, Rl, R2, 3001 1h, 30021h, 30033h ~ 30043h · ·:: (Part 1) of the lane section: Recording section RF6 ~ RF9, R5, R8, 30000h ~ 30010h, 30022h ~ 30032h. · ·: (2) Recording section of the groove section This paper size applies to Chinese National Standard (CNS) A4 specification (210X297 mm) ~ ~~~ (Please read Ba ’s notes before filling in this page) Order printed by the Central Standards Bureau of the Ministry of Economic Affairs and printed by the Shellfish Consumer Cooperative 460860 A7 B7 V. Description of the invention (50) Header field, 30000, 30001 ···: Header field HF1, HF3, H1, H3, 3001 1 to 30021, 30033 to 30043 · · ·: Front half mark head HF2, HF4, H2, H4, 30000 to 30010, 30022 to 30032 · · ·: Rear half mark head PID1, PID2 : PID part P: Track pitch Z0 ~ Z23: Ring area (section area) S0 ~ S23: Reserved area (alternating area) 1: Optical disc 3: Optical disc motor 4: Motor control circuit 5: Optical pickup 6: Linear motor 8: Linear motor control circuit 10: Objective lens 13: Laser control circuit 14: Modulation circuit 15: Laser drive circuit 16: PLL circuit 19: Semiconductor laser oscillator (light irradiation mechanism) 24: Light Measure _ (light detection mechanism) 27: Focus control circuit 28: Tracking control circuit (position control circuit) {Please read and read the precautions on the back before filling in this page) The paper scale is applicable to the Chinese National Standard (CNS_) Α4 specification ( 210Χ297 公 嫠} -53-

460860 V. Description of the invention (51) 30: CPU (please read s " lack of attention on the back before filling out this page), ιτο printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs, the paper size is applicable to Chinese National Standard (CNS) Α4 Specifications (210X297 mm) -54-

Claims (1)

A8 B8 C3 D8 VI .. Patent application scope No. 8 7 1 σ 3 4 0 6 Patent application iif Chinese patent application scope amendment Z Amended in February of the Republic of China • 1. An optical disc for recording and reproduction, which is characterized by : The first area of the .RAM format is based on the first format, which enables the recording and reproduction of data; and ΐ. The second area of the ROM format is based on the same as the first area above: It is possible to reproduce disc-identified data. % 2. An optical disc for recording and reproduction, having the following features: | The first area of the RAM format is to enable the recording and regeneration of data Φι · ^ is possible, and the first grid is for lanes and grooves The recording section records and reproduces the data, and at the same time, it is arranged in a zigzag-shaped header and records the address information corresponding to the lane-shaped and groove-shaped recording section; and the second field is related to the reproducible The field of writing is different, and only the reproduction of disc identification information is possible. 3. An optical disc for recording and reproduction, comprising: the first field of the RA M format, the first field is composed of: a first recording section in a lane-shaped field for recording and reproducing data, and corresponding to the first field The address information of the recording section is recorded in the header of the first half mark, and the second recording section in the groove-shaped area where data is recorded and reproduced, and the address information corresponding to the second recording section is recorded. Pairs, which are composed of a half-marker head with a zigzag pattern, making it possible to record and reproduce data; and 460860 (Please read the precautions on the back before filling this page) This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 460860 A8 B8 C8 D8 VI. Patent application scope • The second area of ROM format, It has a structure different from that in the first field, and only makes it possible to reproduce disc identification data. 4. An optical disc for recording and reproduction, comprising: a rewritable data field in the RA M format; the first field is composed of: a first recording section in a lane-shaped field for recording and reproducing data; The address information of the first recording section is recorded in the header of the first half mark, and the second recording section in the grooved area where the data is recorded and reproduced, and the address information corresponding to the second recording section is recorded, which is the same as the first half of the label The heads are paired, and are composed of a half-marker head that is arranged after the sawtooth shape, which makes it possible to record and reproduce data. The embossed recording data formed by the concave-convex shape pits only reproduces the data on disc identification. 5. An optical disc for recording and reproduction, comprising: a first recording section in the RA M format, which is an alley-like field for recording and reproduction of data; and a head of the first half of the standard, which records the corresponding first recording section. Address information; and the second recording section in .RA M format, which is a grooved field for recording and reproduction of data: and the second half of the header, which records the address information corresponding to the second recording section, and the above The first half of the header, in pairs, are arranged in a zigzag pattern; and the embossed area of the R OM format is embossed by embossed pits, and records data 'Only about the disc and other information To regenerate, please read the intent and then fill in, write this page The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -2-46086 0 A8 B8 C8 D8, the scope of patent application is possible By. 6. An optical disc for recording and reproduction, comprising: a rewritable data field in the RA M format, which is a first recording section in a lane-shaped field for recording and reproducing data, and records corresponding to the first record The information of the first half of the header, and the second recording section of the groove-shaped field for recording and reproduction of data, and the address information corresponding to the second recording section are paired with the above-mentioned first half of the header and are arranged. Those formed by the half-marked head after being jagged, 'make it possible to record and reproduce data; and the embossed field in the ROM format is different from this rewritable data field, and is formed by a concave-convex shape pit The embossed recording data is arranged closer to the inner peripheral side of the disc than the above-mentioned rewritable data field, and only makes it possible to reproduce the data on disc identification. 7. An optical disc for recording and reproduction, which has the following features: The field of rewritable data printed in the RA M format by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs is the first record in the field of data recording and reproduction. And the second recording section which records the header half before the information corresponding to the first recording section, and the grooved area where data is recorded and reproduced, and the address information corresponding to the second recording section, and The above-mentioned first half headers are paired, and are arranged in a zigzag rear half header. The ones that make it possible to record and reproduce data; and the embossed field in the format of R OM is related to the rewritable data. Different fields, with embossed recorded data formed by pits with concave and convex shapes, than the above-mentioned rewritable data field, the data is recorded and reproduced first ', which only makes it possible to reproduce the data about disc identification. 8. An optical disc for recording and reproduction, which has the following characteristics: -3- (Please read the notes on the back before writing this page) This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 460860 A8 B8 C8 D8, patent application scope RA M format recording and reproduction of the lane-shaped 1 recording section of the information in the groove-shaped field of the first address information, and the above-mentioned semi-standard header constitutes the ROM format, In order to read the field from the concave-convex shape, only the material field, the recording section, and the pair are performed and recorded, and recorded and re-recorded. The data corresponding to the embossing is the corresponding section of the recorded data. The first semi-standard head 2 recording section configured to generate re-writable resources for reproduction of rewritable recorded data, the first semi-standard head forms the embossed field pits of the data to form disc discriminating information It is possible to correspond to the jagged shape of the recording and reproduction 2 recording section; and the data field is not possible, as it is possible to be a disc. Please read the precautions at the back before filling out ~ -Line Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) -4-