CN101477809B - The optical data recording method - Google Patents

The optical data recording method Download PDF

Info

Publication number
CN101477809B
CN101477809B CN 200910009975 CN200910009975A CN101477809B CN 101477809 B CN101477809 B CN 101477809B CN 200910009975 CN200910009975 CN 200910009975 CN 200910009975 A CN200910009975 A CN 200910009975A CN 101477809 B CN101477809 B CN 101477809B
Authority
CN
China
Prior art keywords
recording
pulse
multi
mark
pulse train
Prior art date
Application number
CN 200910009975
Other languages
Chinese (zh)
Other versions
CN101477809A (en
Inventor
东海林卫
小石健二
中村敦史
石田隆
田坂修一
Original Assignee
松下电器产业株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2002-297295 priority Critical
Priority to JP2002297295 priority
Priority to JP2002312432 priority
Priority to JP2002-312432 priority
Application filed by 松下电器产业株式会社 filed Critical 松下电器产业株式会社
Priority to CN200380100329.5 priority
Priority to CN200380100329.52003.10.09 priority
Publication of CN101477809A publication Critical patent/CN101477809A/en
Application granted granted Critical
Publication of CN101477809B publication Critical patent/CN101477809B/en

Links

Abstract

一种光学数据记录方法,包括步骤:调制要记录的数据,以产生多个记录调制码;和向光盘发射脉冲类光束,以便在光盘上形成具有与该多个记录调制码对应长度的多个记录标记和间隙。 An optical data recording method, comprising the steps of: modulating data to be recorded, to generate a plurality of recording modulation codes; and a pulse type light beam emitted to the optical disc, so as to form a corresponding plurality having the plurality of recording modulation code length on the optical disc recording marks and spaces. 在该光学数据记录方法中,该多个记录标记中的至少两个标记包括:设置在前端并形成记录标记的前沿的第一脉冲,设置在后端并形成记录标记的后沿的最后脉冲,和设置在第一脉冲和最后脉冲之间并形成记录标记的中部的多脉冲串。 In the optical data recording method, the plurality of recording at least two tag labels include: a front end and provided at the leading edge of a first pulse forming a recording mark is provided at the rear end of the last pulse and forms a trailing edge of the recording mark, and a multi-pulse train disposed between the first pulse and the last pulse and the middle of the recording mark is formed. 该多脉冲串具有比代表记录调制代码的参考周期的T更长的脉冲周期。 The multi-pulse train having a pulse period longer than T denotes a recording modulation code of the reference period.

Description

光学数据记录方法 The optical data recording method

[0001] 本申请是如下申请的分案申请:国际申请号PCT/JP2003/013011,国际申请日2003年10月9日;中国国家申请号200380100329. 5,进入国家阶段日期2004年9月9日。 [0001] This application is a divisional application filed as follows: International Application No. PCT / JP2003 / 013011, International Filing Date October 9, 2003; China National application No. 200380100329.5, national phase entry date of September 9, 2004 . 并因此,本申请要求如下在先申请的优先权:2002年10月10日提交的日本专利申请2002-297295 ;2002年10月28日提交的日本专利申请2002-312432。 And therefore, the present application claims priority to the earlier application: Japanese Patent October 10, 2002 filed 2002-297295; Japanese Patent October 28, 2002 filed 2002-312432.

技术领域 FIELD

[0002] 本发明涉及一种在诸如光盘之类的数据存储介质上光学地记录数据的方法。 [0002] The present invention relates to a method for optically recording data such as a data storage medium is an optical disk.

背景技术 Background technique

[0003] 作为用于记录大量数字数据的介质,用于光学地记录数据的数据存储介质已受到关注。 [0003] As a medium for recording large amounts of digital data, a data storage medium optically recording data has been attracting attention.

[0004] 相变光盘是可记录的数据记录介质之一。 [0004] The phase change optical disc is one of recordable data recording medium. 相变光盘具有通过加热熔化的记录膜。 Phase change optical disc has a recording film melted by heating. 通过用根据要记录的数据调制的半导体激光器的光束照射旋转的盘,在记录膜上被光束照射的部分出现相变,并记录了数据。 The rotary irradiated with a semiconductor laser beam modulated by data to be recorded in the disc, the recording film is irradiated with partial beams a phase change occurs, and the data recorded.

[0005] 在强光束的情况下,记录膜上被光束照射的部分被加热到高温,然后被迅速冷却。 [0005] In the case of a strong light beam, the light beam recording film is irradiated portion is heated to a high temperature, and then rapidly cooled. 记录膜上被光束照射的部分因此变成非晶状态。 Recording film is irradiated with the beam portion thus becomes an amorphous state. 在相对弱的光束的情况下,被光束照射的部分被加热到适中的高温,然后被逐渐冷却。 In the case of a relatively weak light beam, the light beam is irradiated portion is heated to a moderate temperature, and then gradually cooled. 于是,被光束照射的部分变成为晶体状态。 Thus, the portion irradiated with the light beam becomes a crystal state. 通常,已经变成非晶状态的部分被称为标记,标记之间结晶的部分被称为间隙(space)。 Generally, the amorphous state has become marked portion is referred to, the crystallized portion between marks is referred to as a gap (space). 利用标记和间隙来记录二进制数据。 Mark and space using the recorded binary data. 标记和间隙串形成在光盘上螺旋设置的轨迹上。 Mark and space formed on the trajectory spiral strings disposed on the optical disk. 通常,强光束的激光器功率被称为峰值功率,弱光束的激光器功率被称为偏置功率。 Typically, the laser beam is referred to as a strong power peak power, the laser power of a weak light beam is called bias power.

[0006] 在读取记录到相变光盘上的数据时,将不引起记录膜的相变的弱光束发射到光盘并检测到反射光。 [0006] When reading the data recorded on the phase change optical disc, the light beam will not cause a weak phase change recording film is emitted to the optical disc and detecting reflected light. 通常,已变成非晶体状态的标记具有低反射率,结晶的间隙具有高反射率。 Generally, the amorphous state has become a mark has a low reflectivity, the gap crystal having a high reflectance. 因此,能够检测到标记和间隙之间反射光量的区别,以产生再现信号,将再现信号二进制化,然后对其进行解调,以获取记录的数据。 Accordingly, it is possible to detect the reflected light amount difference between mark and space, to generate a reproduction signal, binarizes the reproduced signal, and then demodulates them to obtain the recorded data.

[0007] 作为在相变光盘上记录数据的方法,可以使用标记位置记录和标记边缘记录。 [0007] As a method for recording data on phase change optical disc, mark position recording and can mark edge recording. 通常,标记边缘记录(标记长度记录)可以获得更闻的信息记录密度。 Typically, mark edge recording (mark length recording) can obtain the information recording density is more audible. 与标记位置记录相比,在标记边缘记录中能够记录更长的标记。 Compared with the mark position recording, in mark edge recording capable of recording longer marks.

[0008] 当光束以峰值发射到相变光盘以记录长标记时,由于记录膜的热积聚,标记的后部在半径方向具有更大的宽度。 [0008] In the peak emission beam to the phase change optical disc to record a long mark time, since the recording film is heat accumulation, a rear mark having a greater width in a radial direction when. 因此,出现了在直接重写期间保留了未删除的数据和在轨迹之间出现信号串扰(crosstalk)的问题,并导致信号质量严重恶化。 Therefore, there has been during direct overwrite deleted data is not retained and the problem of signal crosstalk (crosstalk) occurs between tracks, and lead to serious deterioration of signal quality.

[0009] 为了解决该问题,例如,日本专利公开No. 9-7176揭示了把由标记边缘记录形成的标记分成前沿,中间部分和后沿。 [0009] In order to solve this problem, for example, Japanese Patent Publication No. 9-7176 discloses the mark formed by the mark edge recording is divided into a leading edge, a trailing edge and intermediate portions. 前沿和后沿各由预定长度的单个激光脉冲形成,中间部分由各具有预定周期的多个激光脉冲形成。 Leading and trailing edges each formed by a single laser pulse of a predetermined length, the intermediate portion is formed by the plurality of laser pulses having a predetermined period. 按照该方法,由于中间部分是由多个激光脉冲形成的,因此,能够抑制热积聚并防止增加标记宽度。 According to this method, since the intermediate portion is formed from a plurality of laser pulses, it is possible to suppress heat accumulation and prevent an increase in mark width. 另一方面,由于标记的前沿和后沿是由预定长度的激光脉冲形成的,可以向记录膜施加足够的热量。 On the other hand, since the leading and trailing edges of the marks are formed by the laser pulse of a predetermined length, sufficient heat may be applied to the recording film. 因此,即使在直接重写的情况下,也能够减少形成的标记的边缘的抖动。 Thus, even in the case of direct overwriting, it is possible to reduce the jitter of the mark edge is formed. [0010] 图I和2给出了根据现有技术,用于形成各种长度的标记的激光脉冲波形的例子。 [0010] FIGS. I and 2 shows an example according to the prior art, the laser pulse waveform for forming marks of various lengths. 例如,根据标记边缘记录,利用根据运行长度有限(2,10)调制方案转换的记录调制编码来记录要记录的数据。 For example, according to the mark edge recording using recording modulation coding to a limited (2,10) modulation scheme changeover run length data to be recorded is recorded. 这种情况下,记录调制编码以最短长度3T到最长长度IlT出现,其中T表示记录标记的记录调制编码的参考周期。 In this case, the shortest length of the recording modulation encoding 3T to the longest length IlT occurs, where T represents the recorded recording mark modulation coding reference period. 根据标记边缘记录在其上进行记录的标记和间隙具有用记录调制编码的长度表示的连续的长度。 According to mark edge recording in which the recording marks and spaces having a length represented by a continuous length of the recording modulation coding.

[0011] 当在光盘上形成这些标记时,如上所述,在具有各自长度的每个标记中,采用如图2所示的多个激光脉冲。 [0011] When these marks are formed on the optical disc, described above, each having a respective mark lengths, using a plurality of laser pulses as shown in FIG. 2. 图6给出了产生用于形成6T标记的激光脉冲的记录脉冲串。 Figure 6 shows the recording pulse train for forming a laser pulse generates a 6T mark. 在图I中,在前端的脉冲801被称为第一脉冲,在后端的脉冲804被称为最后脉冲。 In Figure I, the front end of pulse 801 is called a first pulse, the last pulse is called pulse 804 at the rear end. 另外,第一脉冲和最后脉冲之间的脉冲802和脉冲803被称为由周期T的脉冲构成的多脉冲串。 The pulse 802 and pulse 803 between the first pulse and the last pulse are referred to as multi-pulse train composed of pulse period T.

[0012] 标记6T的多脉冲串包括两个脉冲,标记7T的多脉冲串包括三个脉冲。 Multi-pulse train [0012] mark 6T includes two pulses, the mark 7T includes three pulses multi-pulse train. 此外,标记5T的多脉冲串实际上是由单个脉冲构成的。 Furthermore, the multi-pulse train of mark 5T is actually constituted by a single pulse. 随着标记长度增加T,脉冲的数量增加I。 As the mark length increases the number of T, a pulse is increased I. 相反,随着标记长度减少T,减少一个脉冲。 In contrast, as the mark length reduced T, a pulse is reduced. 因此,标记4T仅由第一脉冲和最后脉冲构成,没有中间脉冲串。 Therefore, 4T marks composed of only a first pulse and a last pulse, without an intermediate burst. 此外,标记3T由单个脉冲构成。 Furthermore, 3T mark is composed of a single pulse. 通常,第一脉冲具有O. 25至I. 5T的宽度,最后脉冲具有O. 25至IT的宽度。 Typically, the first pulse having a width to O. 25 I. 5T, the last pulse has a width of O. 25 to IT. 构成多脉冲串的单个脉冲具有O. 25至O. 75T的宽度。 Single pulse constituting the multi-pulse train has a width of O. 25 O. 75T to.

[0013] 在图2所示的激光脉冲波形中,虽然最后脉冲的宽度与图I所示的激光脉冲的波形的不同,标记长度和形成中间部分的多脉冲串的数量之间的关系与图I的激光脉冲的相同。 FIG relation between the number of [0013] the laser pulse waveform shown in FIG. 2, different mark length and the waveform of the laser pulse width, although I shown in FIG last pulse forming an intermediate multi-pulse train portion I the same laser pulse.

[0014] 在根据上述方法形成标记时,通过改变中间部分的脉冲数量能够很容易地形成不同长度的标记。 [0014] In forming the above-described marking method, by changing the number of pulses of the intermediate portion can be easily formed of different mark lengths. 然而,根据该常规方法,当记录数据的速度增加时,例如,当以高传送速度将数据记录到光盘上时,由于激光二极管的响应速度达不到理想高度,脉冲的上升沿和下降沿在发光波形中变弱。 However, according to this conventional method, when the speed of the recording data increases, e.g., when the optical disk at a high transfer rate recording data, since the response speed of the laser diode is less than ideal height, rising and falling edges of the pulse emission waveform becomes weak. 因此,不能将预定的热量施加到光盘的记录膜。 Thus, heat can not be applied to a predetermined recording film of the optical disc. 特别是,由于多脉冲串具有例如约O. 25至O. 75T的脉冲宽度,在激光器的某些上升时间和下降时间中变得很难产生正弦波的脉冲。 In particular, since the multi-pulse train having a pulse width of, for example, to from about O. 25 O. 75T, it becomes difficult to produce a sine wave pulse rise time of the laser at some time and fall. 因此,不能形成正确的标记。 Thus, a correct mark can not be formed.

发明内容 SUMMARY

[0015] 本发明的一个目的是解决上述常规问题,并提供一种能够正确记录的用于光学地记录数据的方法。 [0015] An object of the present invention is to solve the aforementioned conventional problems, and to provide a method for optically recording data capable of correctly recorded.

[0016] 该光学的数据记录方法包括步骤:调制要记录的数据,以产生多个记录调制代码;和向光盘发射脉冲类光束,以便在光盘上形成具有与该多个记录调制代码相对应长度的多个记录标记和间隙。 [0016] The optical data recording method comprising the steps of: modulating data to be recorded, to generate a plurality of recording modulation codes; and a pulse type light beam emitted to the optical disc, so as to form a corresponding plurality of recording modulation codes the length on the optical disc a plurality of recording marks and spaces. 在该光学的数据记录方法中,该多个记录标记中的至少两个包括:设置在前端并形成记录标记的前沿的第一脉冲,设置在后端并形成记录标记的后沿的最后脉冲,和设置在第一脉冲和最后脉冲之间并形成记录标记的中部的多脉冲串。 In the optical data recording method, a plurality of the at least two recording marks comprising: a front end and provided at the leading edge of a first pulse forming a recording mark is provided at the rear end and forming a recording mark trailing edge of the last pulse, and a multi-pulse train disposed between the first pulse and the last pulse and the middle of the recording mark is formed. 该多脉冲串具有比代表记录调制代码的参考周期的T更长的脉冲周期。 The multi-pulse train having a pulse period longer than T denotes a recording modulation code of the reference period.

[0017] 在本发明的一个实施例中,该多个记录标记具有用nT表示的不同长度(η是等于或大于I的整数),并且具有不同的η的至少两个记录标记在记录脉冲串中包括的脉冲数量相等。 [0017] In one embodiment of the present invention, the plurality of recording marks have different lengths represented by nT ([eta] is an integer greater than or equal to I), and have different [eta] of at least two recording marks in the recording pulse train equal to the number of pulses included.

[0018] 在本发明的一个实施例中,由第一脉冲,多脉冲串,和最后脉冲中的至少一个产生的光束在至少两个记录标记中的照射功率被改变。 [0018] In one embodiment of the present invention, the first pulse, a multi pulse train, a last pulse and a beam irradiation power in at least one of the at least two generated in a recording mark is altered.

[0019] 在本发明的一个实施例中,记录标记2ηΤ和(2η+1)Τ中的每个记录脉冲串在多个记录标记中包括相等的脉冲数量。 [0019] In one embodiment of the present invention, the recording mark and 2ηΤ (2η + 1) of each recording pulse train comprises Τ equal number of pulses in the plurality of recording marks.

[0020] 在本发明的一个实施例中,记录标记(2n_l)T和2ηΤ中的每个记录脉冲串在多个记录标记中包括相等的脉冲数量。 [0020] In one embodiment of the present invention, a recording mark (2n_l) T, and each recording pulse train comprises a number of pulses equal 2ηΤ plurality of recording marks.

[0021] 在本发明的一个实施例中,每个第一脉冲在多个记录标记中具有相等的脉冲宽度。 [0021] In one embodiment of the present invention, each first pulse having a pulse width equal to the plurality of recording marks.

[0022] 在本发明的一个实施例中,每个最后脉冲在多个记录标记中具有相等的脉冲宽度。 [0022] In one embodiment of the present invention, each of the last pulses have an equal pulse width in the plurality of recording marks.

[0023] 在本发明的一个实施例中,多脉冲串中的每一个在多个记录标记中具有相等的脉冲宽度和脉冲间隔。 [0023] In one embodiment of the present invention, the multi-pulse train each having equal pulse width and pulse interval in the plurality of recording marks. [0024] 在本发明的一个实施例中,该多个记录标记包括由根据仅包括一个脉冲的记录脉冲串发射的光束形成的记录标记,和由根据仅包括第一脉冲和最后脉冲的记录脉冲串发射的光束形成的记录标记,和该记录脉冲串具有脉冲宽度各为IT或更大的脉冲。 [0024] In one embodiment of the present invention, the plurality of recording marks include a recording mark according to the beam comprises only a recording pulse train transmitted pulse is formed, and includes only the recording pulse in accordance with a first pulse and a last pulse a light beam emitted recording mark string is formed, and the recording pulse train having a pulse width of each pulse IT or greater.

[0025] 在本发明的一个实施例中,该多个记录标记包括由根据仅包括一个脉冲的记录脉冲串发射的光束形成的记录标记,和由根据仅包括第一脉冲和最后脉冲的记录脉冲串发射的光束形成的记录标记,和该记录脉冲串具有间隔各为IT或更大的相邻的两个脉冲。 [0025] In one embodiment of the present invention, the plurality of recording marks include a recording mark according to the beam comprises only a recording pulse train transmitted pulse is formed, and includes only the recording pulse in accordance with a first pulse and a last pulse a light beam emitted recording mark string is formed, and the recording pulse train having a larger interval of each IT or two adjacent pulses.

[0026] 在本发明的一个实施例中,在记录脉冲串中,设置具有设置在其中的多脉冲串的多脉冲区,至少一个记录脉冲串的幅度和位置,以便将多脉冲占空比(duty)或多脉冲幅度平均值设置在预定值,通过把多脉冲串的脉冲宽度除以多脉冲串的周期获得多脉冲占空t匕,通过将多脉冲区的幅度整数除以多脉冲区的时间宽度获得多脉冲幅度平均值。 [0026] In one embodiment of the present invention, the recording pulse train, the multi-pulse region is provided having a multi-pulse train disposed therein, amplitude and a position of at least a recording pulse train, the pulse duty so that the plurality ( duty) or multi-pulse amplitude average value set at a predetermined value, the multi-pulse train by a pulse width divided by the multi-pulse train multi-pulse duty cycle t is obtained dagger, the amplitude of the multi-pulse area by dividing the integer multiple pulse region time width multi-pulse amplitude average value is obtained.

[0027] 在本发明的一个实施例中,多脉冲串具有被设置为2T的周期。 [0027] In one embodiment of the present invention, multi-pulse train having a cycle of 2T is provided.

[0028] 在本发明的一个实施例中,由多脉冲串的前端脉冲的上升定时到多脉冲串的后端脉冲的下降定时定义该多脉冲区。 [0028] In one embodiment of the present invention, by the rise of a top pulse train multi-pulse timing of the falling edge pulse of the multi-pulse train the timing of the multi-pulse area is defined.

[0029] 在本发明的一个实施例中,由第一脉冲的下降定时到最后脉冲的上升定时定义该多脉冲区。 [0029] In one embodiment of the present invention, the timing of the fall of the first pulse to rising timing of the last pulse of the multi-pulse area is defined.

[0030] 在本发明的一个实施例中,该方法设置该记录脉冲串的前端脉冲的上升定时和该记录脉冲串的每个脉冲的脉冲宽度。 [0030] In one embodiment of the present invention, the method sets rising top pulse of the recording pulse train and the timing of the recording pulse train of the pulse width of each pulse.

[0031] 在本发明的一个实施例中,进行设置,以使第一脉冲和该脉冲串的前端脉冲之间的前端间隙宽度与多脉冲串的后端脉冲和最后脉冲之间的后端间隙宽度几乎彼此相等 [0031] In one embodiment of the present invention, it is set so that a gap between the rear end of the front gap width between the first pulse and the front pulse and the rear end of the burst pulse and the last pulse of the multi-pulse train width almost equal to each other

[0032] 在本发明的一个实施例中,多个记录调制代码具有由nT(n是等于或大于I的整数)表示的不同长度,所设置的记录脉冲串的至少一个脉冲的幅度和位置是常数值,而与记录调制代码的长度无关。 [0032] In one embodiment of the present invention, the plurality of recording modulation codes have different lengths represented by nT (n is an integer greater than or equal to I), the amplitude and position of at least one pulse of the recording pulse train is provided constant value, regardless of the length of the recording modulation code.

[0033] 在本发明的一个实施例中,多个记录调制代码具有由ηΤ(η是等于或大于I的整数)表示的不同长度,并依据记录调制代码的长度是T的大小的奇数倍还是偶数倍来以不同的值设置记录脉冲串的至少一个脉冲的设置幅度和位置。 [0033] In one embodiment of the present invention, the plurality of recording modulation codes have different lengths represented by ηΤ (η is an integer greater than or equal to I), and based on the recording modulation code length is an odd multiple of the size or T an even multiple of the amplitude and position of at least setting a pulse of the recording pulse train with different values.

[0034] 在本发明的一个实施例中,多个记录调制代码具有由ηΤ(η是等于或大于I的整数)表示的不同长度,并根据记录调制代码的长度,以不同的值设置记录脉冲串的至少一个脉冲的设置幅度和位置。 [0034] In one embodiment of the present invention, the plurality of recording modulation codes have different lengths represented by ηΤ (η is an integer greater than or equal to I) and the length of the recording modulation codes, with different recording pulse value at least a set amplitude and position pulse train.

[0035] 在本发明的一个实施例中,多个记录调制代码具有由ηΤ(η是等于或大于I的整数)表示的不同长度,将该多个记录调制代码分类成多个代码组,并针对每个代码组以不同的值设置记录脉冲串的至少一个脉冲的设置幅度和位置。 [0035] In one embodiment of the present invention, the plurality of recording modulation codes have different lengths represented by ηΤ (η is an integer greater than or equal to I), and the plurality of recording modulation codes classified into a plurality of code groups, and set amplitude and position of each code group for a recording pulse train is set to a different value of at least one pulse.

[0036] 在本发明的一个实施例中,多个记录调制代码具有由nT(n是等于或大于I的整数)表示的不同长度,并将多脉冲占空比或多脉冲幅度平均值设置为常数值,而与该记录调制代码的长度无关。 [0036] In one embodiment of the present invention, the plurality of recording modulation codes have different lengths represented by nT (n is an integer greater than or equal to I), and the multi-pulse duty or multi-pulse amplitude average value is set to constant value, irrespective of the length of the recording modulation code.

[0037] 在本发明的一个实施例中,多个记录调制代码具有由ηΤ(η是等于或大于I的整数)表示的不同长度,并根据记录调制代码的长度是T的大小的奇数倍还是偶数倍,将多脉冲占空比或多脉冲幅度平均值设置为不同的值。 [0037] In one embodiment of the present invention, the plurality of recording modulation codes have different lengths represented by ηΤ (η is an integer greater than or equal to I) and the length of the recording modulation code is an odd multiple of the size or T an even multiple of the multi-pulse duty or multi-pulse amplitude average value is set to a different value.

[0038] 在本发明的一个实施例中,多个记录调制代码具有由ηΤ(η是等于或大于I的整数)表示的不同长度,并根据记录调制代码的长度,将多脉冲占空比或多脉冲幅度平均值设置为不同的值。 [0038] In one embodiment of the present invention, the plurality of recording modulation codes have different lengths represented by ηΤ (η is an integer greater than or equal to I) and the length of the recording modulation code, the multi-pulse duty cycle or the multi-pulse amplitude average value is set to a different value.

[0039] 在本发明的一个实施例中,多个记录调制代码具有由ηΤ(η是等于或大于I的整数)表示的不同长度,将该多个记录调制代码分类成多个代码组,并针对每个代码组将多脉冲占空比或多脉冲幅度平均值设置为不同的值。 [0039] In one embodiment of the present invention, the plurality of recording modulation codes have different lengths represented by ηΤ (η is an integer greater than or equal to I), and the plurality of recording modulation codes classified into a plurality of code groups, and each code group for the pulse duty or multi-pulse amplitude average value is set to a different value.

[0040] 在本发明的一个实施例中,通过使用记录脉冲串形成记录标记,并估计通过再现形成的记录标记获得的再现信号的中心周围的幅度值来确定多脉冲占空比或多脉冲幅度平均值。 [0040] In one embodiment of the present invention, the multi-pulse duty is determined amplitude or pulse forming a recording mark by using a recording pulse train, and the estimated amplitude values ​​around the recording mark reproducing signal obtained by reproducing the formed center average value.

[0041] 根据本发明的另一个方面,一种数据记录设备包括:在其上放置光盘并使光盘旋转的电机;具有光源并向电机上放置的光盘上发射光束的光头;调制要记录的数据并产生多个记录调制代码的信号处理部分;根据记录调制代码来产生用于驱动光源的多个记录脉冲串,以便在光盘上形成具有与相应的记录调制代码相对应的长度的多个记录标记的记录脉冲串产生部分。 [0041] According to another aspect of the present invention, a data recording apparatus comprising: placing an optical disc and rotating the optical disk motor thereon; an optical head having a light source emitting a light beam to the optical disc placed on the motor; modulating data to be recorded and generating a plurality of recording modulation codes of the signal processing section; generating a plurality of recording pulse trains for driving the light source based on the recording modulation codes, so as to form a recording mark having a plurality of recording modulation codes corresponding to the length corresponding on the optical disc the recording pulse train generating section. 该多个记录标记中的至少两个标记是由根据记录脉冲串发射的光束形成的,该记录脉冲串包括:设置在前端并形成记录标记的前沿的第一脉冲,设置在后端并形成记录标记的后沿的最后脉冲,和设置在第一脉冲和最后脉冲之间并形成记录标记的中部的多脉冲串。 The plurality of at least two recording marks are marks formed by the light beam emitted according to the recording pulse train, the recording pulse train comprising: a first formation is provided at a front end pulse and the leading edge of the recording mark is provided at the rear end and forming record multi-pulse train after the last marker pulse edge, and disposed between the first pulse and the last pulse and the middle of the recording mark is formed. 该多脉冲串具有比代表记录调制代码的参考周期的T更长的脉冲周期。 The multi-pulse train having a pulse period longer than T denotes a recording modulation code of the reference period.

[0042] 在本发明的一个实施例中,该多个记录标记具有用ηΤ表示的不同长度(η是等于或大于I的整数),并且具有不同的η的至少两个记录标记在记录脉冲串中包括的脉冲数量相等。 [0042] In one embodiment of the present invention, the plurality of recording marks have different lengths represented by ηΤ ([eta] is an integer greater than or equal to I), and have different [eta] of at least two recording marks in the recording pulse train equal to the number of pulses included.

[0043] 在本发明的一个实施例中,由第一脉冲,多脉冲串,和最后脉冲串中的至少一个产生的光束在至少两个记录标记中的照射功率被改变。 [0043] In one embodiment of the present invention, the first pulse, a multi pulse train, and generating at least one beam of the last pulse string irradiation power in at least two recording mark is altered.

[0044] 在本发明的一个实施例中,在记录脉冲串中,设置具有设置在其中的多脉冲串的多脉冲区,至少一个记录脉冲串的幅度和位置,以便将多脉冲占空比或多脉冲幅度平均值设置在预定值,通过把多脉冲串的脉冲宽度除以多脉冲串的周期获得多脉冲占空比,通过将多脉冲区的幅度整数除以多脉冲区的时间宽度获得多脉冲幅度平均值。 [0044] In one embodiment of the present invention, the recording pulse train, the multi-pulse region is provided having a multi-pulse train disposed therein, amplitude and a position of at least a recording pulse train, the multi-pulse duty or so the multi-pulse amplitude average value set at a predetermined value, obtained by the multi-pulse duty cycle pulse width divided by the multi-pulse train multi-pulse train is periodic, the amplitude is obtained by a multi-zone multi-pulse width of an integer divided by the time of the multi-pulse region pulse amplitude average.

[0045] 在本发明的一个实施例中,多脉冲串具有设置在2Τ的周期。 [0045] In one embodiment of the present invention, the multi-pulse train having a period of 2Τ provided.

附图说明 BRIEF DESCRIPTION

[0046] 图I是表示常规记录脉冲串的一个例子的示意图。 [0046] Figure I is a diagram showing an example of a conventional recording pulse train.

[0047] 图2是表示常规记录脉冲串的另一个例子的示意图。 [0047] FIG. 2 is a schematic view showing another example of the conventional recording pulse train.

[0048] 图3是表示根据本发明的记录设备的实施例I的方框图。 [0048] FIG. 3 is a block diagram showing a recording apparatus according to an embodiment of the present invention is I. [0049] 图4是表示图3的记录设备中的光束控制部分的结构的示意图。 [0049] FIG. 4 is a schematic diagram showing a configuration of a recording beam control section 3 in the apparatus of FIG.

[0050] 图5是表不输入到光束控制部分的信号和从光束控制部分输出的信号的不意图。 [0050] FIG. 5 is a table of the signal beam not inputted to the control section and the signal light beam are not intended to output from the control section.

[0051] 图6是表示根据实施例I的记录脉冲串的实例I的示意图。 [0051] FIG. 6 is a schematic diagram showing an example of the I recording pulse train of Example I embodiment.

[0052] 图7是表示根据实施例I的记录脉冲串的实例2的示意图。 [0052] FIG. 7 is a diagram showing an example of a recording pulse train of Example I embodiment 2.

[0053] 图8是表示根据实施例I的记录脉冲串的实例3的示意图。 [0053] FIG. 8 is a diagram showing an example of a recording pulse train of Example I embodiment 3.

[0054] 图9是表示根据实施例I的记录脉冲串的实例4的示意图。 [0054] FIG. 9 is a diagram showing an example of a recording pulse train of Example I 4 embodiment.

[0055] 图10是表示根据实施例I的记录脉冲串的实例5的示意图。 [0055] FIG. 10 is a schematic diagram showing an example 5 of the recording pulse train of Example I embodiment.

[0056] 图11是表示根据实施例I的记录脉冲串的实例6的示意图。 [0056] FIG. 11 is a schematic diagram showing an example 6 of the recording pulse train of Example I embodiment.

[0057] 图12是表示根据实施例I的记录脉冲串的实例I的一个变化的示意图。 [0057] FIG. 12 is a schematic diagram showing an example of variation I of the recording pulse train of Example I embodiment.

[0058] 图13是表示根据实施例I的记录脉冲串的实例2的一个变化的示意图。 [0058] FIG. 13 is a schematic diagram showing an example of a change in the recording pulse train of Example I embodiment 2.

[0059] 图14是表示根据实施例I的记录脉冲串的实例3的一个变化的示意图。 [0059] FIG. 14 is a diagram showing examples of recording pulse trains of Example I embodiment 3 according to a variation.

[0060] 图15是表示根据实施例I的记录脉冲串的实例4的一个变化的示意图。 [0060] FIG. 15 is a schematic view showing an example of a change in the recording pulse train of Example I 4 embodiment.

[0061] 图16是表示根据实施例I的记录脉冲串的实例5的一个变化的示意图。 [0061] FIG. 16 is a schematic view of a variation example of the recording pulse train of Example I embodiment 5 of FIG.

[0062] 图17是表示根据实施例I的记录脉冲串的实例6的一个变化的示意图。 [0062] FIG. 17 is a schematic view showing an example of a change in the recording pulse train of Example I 6 embodiment.

[0063] 图18A和18B示出了由常规记录脉冲串形成的记录标记,以及记录脉冲串和通过再现记录标记获得的再现信号的波形。 [0063] Figures 18A and 18B illustrate a conventional recording mark formed by a recording pulse train, the pulse train and a recording and reproducing the waveform signal obtained by reproducing the recording mark.

[0064] 图19示出了根据实施例2的记录脉冲串,由该记录脉冲串形成的记录标记,和通过再现该记录标记获得的再现信号的波形。 [0064] FIG. 19 shows a recording pulse train in accordance with Example 2, a recording mark formed by the recording pulse train, and the waveform of the reproduction signal by reproducing a recording mark obtained.

[0065] 图20是表示用于确定实施例2的记录脉冲串的参数的示意图。 [0065] FIG. 20 is a schematic diagram showing parameters for determining the recording pulse train according to the second embodiment.

[0066] 图21是表示根据实施例2的记录脉冲串的实例I的示意图。 [0066] FIG. 21 is a schematic diagram showing an example of the I recording pulse train of Example 2.

[0067] 图22是表示根据实施例2的记录脉冲串的实例2的示意图。 [0067] FIG. 22 is a diagram showing an example of the recording pulse trains of Example 2 of Embodiment 2. FIG.

[0068] 图23是表示根据实施例2的记录脉冲串的实例3的示意图。 [0068] FIG. 23 is a diagram showing an example of the recording pulse trains of Example 3 of the embodiment 2.

[0069] 图24是说明根据实施例2决定用于确定参数是否合适的目标值的估计方法的示意图。 [0069] FIG. 24 is a diagram illustrating a method of determining the parameter estimate is appropriate for the target value determined in accordance with Example 2.

具体实施方式 Detailed ways

[0070](实施例I) [0070] (Example I)

[0071] 图3是表示根据本发明的数据记录设备的实施例I的方框图。 [0071] FIG. 3 is a block diagram according to an embodiment of the data recording apparatus of the present invention I. 如图3所示,数据记录设备100包括主轴电机102,光头103,光束控制部分104,伺服部分105,再现二进制化部分106,数字信号处理部分107,记录补偿部分108,和CPU 109。 3, the data recording apparatus 100 includes a spindle motor 102, optical head 103, the light beam control section 104, a servo section 105, a reproduction binarizing section 106, a digital signal processing section 107, a recording compensation section 108, and a CPU 109. 光束控制部分104和记录补偿部分108形成记录脉冲串产生部分。 Beam control section 104 and the recording compensating section 108 form a recording pulse train generating section.

[0072] 光盘101放置在主轴电机102上,主轴电机102转动光盘101。 [0072] The optical disc 101 is placed on the spindle motor 102, spindle motor 102 rotates the optical disc 101. 光盘101具有一个或多个用于记录数据的轨迹。 The optical disc 101 having one or more tracks for recording data. 轨迹呈螺旋或同心圆形。 Spiral or concentric circular tracks. 光盘101具有通过加热来熔化的记录膜。 Optical disc 101 has a recording film melted by heating. 当发射根据要记录的数据调制的半导体激光器的光束时,在记录膜上被光束照射了的部分出现相变。 When the semiconductor laser emitting a light beam modulated according to data to be recorded, the recording film is irradiated with a light beam partly occurs a phase change.

[0073] 光头103具有作为光源的激光二极管,该光源向光盘101照射用于记录数据的光束。 [0073] The optical head 103 has a laser diode as a light source, the light source 101 to the optical disk for irradiating a light beam for recording data. 另外,光头103将从光盘101反射的光转换成电信号,并将经转换的信号作为再现信号输出到再现二进制化部分106。 Further, the optical head 103 reflected from the optical disk 101 into an electric signal, and the converted signal as a reproduction signal to the reproduction binarizing section 106.

[0074] 光束控制部分104产生用于驱动光头103的激光二极管的电流,和根据CPU 109的指令控制从激光二极管输出的光束的功率。 [0074] The light beam control section 104 generates current for driving the laser diode of the optical head 103, and controls the power output from the laser diode beam in accordance with an instruction of the CPU 109.

[0075] 伺服部分105控制光头103的位置,并对从光头103发射的光束进行聚焦控制和跟踪控制。 [0075] The servo section 105 controls the position of the head 103, and the focusing control and tracking control for the optical head 103 a light beam emitted. 此外,伺服部分105控制主轴电机102的旋转。 Further, the servo section 105 controls the spindle motor 102 is rotating. 再现二进制化部分106放大从光头103获得的再现信号,并对信号进行二进制化以产生二进制化信号。 Amplifying the reproduction binarizing section 106 binarizes the reproduction signal obtained from the optical head 103, and the signal to produce a binary signal. 另外,二进制化部分106利用内部PLL(未示出),与二进制化信号同步地产生时钟。 Further, the binarization part 106 using the internal PLL (not shown) generates a clock synchronized with the binarized signal.

[0076] 数字信号处理部分107对二进制化信号进行预定的解调和纠错。 [0076] binary signal on the digital signal processing section 107 performs predetermined demodulation and error correction. 在记录数据时,数字信号处理部分107将纠错码加到记录的数据,并进行预定的调制以产生调制数据。 When data is recorded, the digital signal processing section 107 to error correcting code to the recording data, and a predetermined modulation to generate modulation data. 记录补偿部分108将调制数据转换成构成脉冲串的光调制数据,根据从盘信息区的再现信号获取的信息和已存储在CPU109中的信息来调节光调制数据的脉冲宽度等,进行向适合于标记的格式的记录脉冲串的信号的转换,并输出该信号。 Recording compensating section 108 converts the modulation data into light modulation data constituted burst to adjust the pulse width of the optical modulation data and the like based on the information acquired reproduction signal disc information area from and the information stored in the CPU109 is, within the appropriate recording pulse train signal format conversion flag, and outputs the signal. CPU 109控制整个数据记录设备100。 CPU 109 controls the entire data recording apparatus 100.

[0077] 主机PC 110由计算机(未示出),应用程序(未示出),和操作系统(未示出)构成,并请求数据记录设备100执行记录和再现。 [0077] The host PC 110 (not shown) by a computer application program (not shown), and an operating system (not shown), and requesting the data recording apparatus 100 and performs recording and reproducing. 当光盘101加载到数据记录设备100中时,数据记录设备100从光头103输出具有预定照射功率的光束,并控制光束控制部分104和伺服部分105,以便对光盘101的盘信息区(通常围绕盘的最内圈设置)进行再现。 When the optical disk 101 loaded into the 100 data recording apparatus, data recording apparatus 100 having a beam predetermined irradiation power output from the optical head 103, and the control light beam control section 104 and the servo section 105 to the disc information area of ​​the optical disc 101 (typically around disc the innermost set) for playback. 从而获取用于记录的照射功率信息等。 So as to obtain irradiation power information for recording.

[0078] 下面参考图3至5,讨论记录操作。 [0078] Next, with reference to FIGS. 3-5, discussed in the recording operation. 图4示出了光束控制部分104的具体结构。 FIG. 4 shows a specific configuration of the light beam control section 104.

[0079] 光束控制部分104产生用于驱动光头103的激光二极管103a的电流。 [0079] The light beam control section 104 generates current for driving the optical head of the laser diode 103a 103. 因此,光束控制部分104包括用于使激光二极管103a发射具有偏置功率的光的电流源122,用于使二极管103a发射具有峰值功率的光的电流源121,和开关123,124,和125。 Thus, the light beam control section 104 includes a laser diode 103a having a light emission current bias power source 122, the diode 103a for light emission current source 121, and a peak power switches 123, 124, and 125. 电流源121和电流源122与激光二极管103a并联,开关123,124,和125并联插入在电流源121和激光二极管103a之间。 Current source 121 and current source 122 in parallel with the laser diode 103a, the switches 123, 124, and 125 are inserted in parallel between the current source 121 and the laser diode 103a.

[0080] 如图3所示,在记录期间,数字信号处理部分107将纠错码加到要记录的数据,并执行预定的调制以产生包括记录调制码的调制数据。 [0080] 3, during recording, the digital signal processing section 107 to error correcting code to data to be recorded and performs predetermined modulation to generate modulation data including a recording modulation code. 记录补偿部分108接收调制数据并将该数据转换成光调制数据。 Recording compensating section 108 receives modulation data and converts the data into light modulation data. 光调制数据由用于产生要施加到激光二极管的驱动脉冲电流,以便在光盘上形成记录标记和记录间隙的记录脉冲串构成。 Optical modulation data generating driving pulse current to be applied to the laser diode for a recording pulse train for forming the recording mark and a recording space on the disc configuration. 记录标记和记录间隙对应于调制数据中包括的记录调制码。 Recording recording marks and a gap corresponding to the recording modulation code included in the data modulation. 此时,记录补偿部分108根据通过再现光盘的盘信息区获取的信息和已存储在CPU 109中的信息对记录脉冲串中的脉冲宽度和定时进行精调节,记录补偿部分108根据光盘的种类和记录速度调节记录脉冲串,以便具有最合适的脉冲波形。 At this time, the recording compensating section 108 for fine adjustment of the recording pulse train and the pulse width and the timing information based on the information stored in the CPU 109 is acquired by reproducing disc information area of ​​the optical disc, a recording compensation section 108 according to the kind of the optical disc and recording the recording pulse train speed regulator, in order to have the most suitable pulse waveform.

[0081] 图5示意性地给出了由记录补偿部分108产生的光调制数据。 [0081] FIG. 5 schematically shows light modulation data generated by the recording compensating section 108. 用于形成单一记录标记的记录脉冲串130包括设置在记录脉冲串130的前端并形成记录标记的前沿的第一脉冲131,设置在记录脉冲串130的后端并形成记录标记的后沿的最后脉冲132,和设置在第一脉冲131和最后脉冲132之间并形成记录标记的中间部分的多脉冲串133。 Recording pulse train 130 for forming a single recording mark includes at a front end of the recording pulse train 130 and forms a first pulse leading edge of the recording mark 131 is provided at the rear end recording pulse train 130 and forms a rear edge of the last recording mark pulse 132, and 131 disposed between the first pulse and the last pulse 132 and forms a multi-pulse train 133 of the intermediate portion of the recording mark. 在图5中,虽然多脉冲串133只包括一个脉冲,但是多脉冲串133可以根据记录标记的长度包括两个或多个脉冲。 In FIG. 5, although the multi-pulse train includes a pulse 133, but the multi-pulse train 133 may include two or more pulses in accordance with recording mark lengths. 另外,根据记录标记的长度,记录脉冲130中可以不包括多脉冲串133,而可以仅包括第一脉冲131和最后脉冲132。 Further, according to the length of the recording mark, the recording pulse 130 may not include a multi-pulse train 133, and 131 may only include a first pulse 132 and the last pulse. 作为替换,具有最短长度的标记可以包括具有一个长度的脉冲,该长度与具有另一个较长长度的标记不同。 Alternatively, the mark having the shortest length may include a pulse having a length, the length having another mark different from a longer length.

[0082] 记录补偿部分108产生分别只包括记录脉冲串130的第一脉冲131,多脉冲串133,和最后脉冲132的信号111,112,和113。 [0082] The recording compensation section 108 generates a first pulse 131 each including only the recording pulse train 130, the multi-pulse train 133, and last pulse signals 111, 112 and 113 132. 记录补偿部分108将这些信号分别输出到光束驱动部分104的开关123,124,和125。 Recording compensation section 108 outputs these signals to the switch drive portion 104 of the beams 123, 124, and 125. 信号111,112,和113中包括的第一脉冲131,多脉冲串133,和最后脉冲132各被在预定定时移位。 Signals 111, 112, 131 113, and a first pulse included in the multi-pulse train 133, and last pulse 132 are each shifted at predetermined timing.

[0083] 已接收到信号111,112,和113的开关123,124,和125进入信号在其期间被设置在高电平的周期0N。 [0083] 111, 112 has been received, the switching signal 113, and 123, 124, and 125 during which the incoming signal is set at the high level period 0N. 因此,产生具有与脉冲串130的波形相类似的波形并具有峰值功率和偏置功率作为高电平和低电平的记录脉冲串(驱动脉冲串)。 Accordingly, a waveform 130 having a pulse train similar to the waveform having a peak power and bias power as a high and low of the recording pulse train (driving pulse train). 由驱动脉冲串驱动激光二极管103a,并响应激光二极管的照射在光盘上形成记录标记。 By the driving pulse train driving the laser diode 103a, and in response to irradiation of a laser diode forming a recording mark on the optical disc.

[0084] 下面描述根据本实施例用于形成记录标记的记录脉冲串。 [0084] The following describes a recording pulse train for forming a recording mark according to the present embodiment. 在下面具体的实施例中,例如,利用行程有限(2,10)调制方案来调制记录数据,并根据标记边缘记录将标记记录在光盘上。 In the following specific embodiments, for example, run-length limited (2,10) modulation scheme to modulate recording data, according to mark edge recording mark recorded on the optical disc. 在该调制方案中,使用从3T到IlT的标记和间隙,其中T表示参考时钟周期。 In this modulation scheme, from 3T to IlT the mark and space, where T represents a reference clock period.

[0085] 图6示出了根据本实施例的实例I的记录脉冲串。 [0085] FIG. 6 shows a recording pulse trains according to Example I of the present embodiment. 图6从上面开始示出了形成记录标记3T至IlT的记录脉冲串。 Figure 6 illustrates from above starts a recording pulse train 3T recording mark is formed to IlT.

[0086] 如图6所示,例如,用于形成记录标记6T的记录脉冲串包括设置在前端的第一脉冲201,设直在后端的最后脉冲203,和设直在弟一脉冲201和最后脉冲203之间的多脉冲串202。 [0086] As shown in FIG. 6, for example, the recording pulse train for forming the recording mark 6T includes a first pulse 201 disposed at the front end, disposed directly at the rear end of the last pulse 203, and disposed in direct pulse 201 and a last brother 203 multi-pulse train 202 between pulses.

[0087] 另外,用于形成记录标记7T的记录脉冲串包括设置在前端的第一脉冲204,设置在后端的最后脉冲206,和设置在第一脉冲204和最后脉冲206之间的多脉冲串205。 [0087] Further, for forming a recording pulse train recording mark 7T includes a first pulse 204 disposed at the front end, provided at the rear end of the last pulse 206, and a multi-pulse train disposed between the first pulse 206 and last pulse 204 205.

[0088] 在这些记录脉冲串中,多脉冲串202和205各由单一的脉冲构成。 [0088] In these recording pulse train, the multi-pulse train 202 and 205 are each formed from a single pulse. 此外,在记录脉冲串8T和9T中,多脉冲串207和209各包括两个脉冲。 Further, in the recording pulse trains 8T and 9T, a multi-pulse train 207 and 209 each include two pulses. 在记录脉冲串IOT和IlT中,多脉冲串209和210各包括三个脉冲。 In the recording pulse train and IlT IOT, the multi-pulse train 209 and 210 each include three pulses.

[0089] 这样,在本实施例的记录脉冲串中,在形成2nT和(2n+l) T记录标记的记录脉冲串中,其中η表示等于或大于2的整数,每个多脉冲串包括相等数量的脉冲。 [0089] Thus, in the recording pulse train according to the present embodiment, in forming 2nT and (2n + l) T recording marks in the recording pulse train, where η represents an integer equal to or greater than 2, each comprising a multi-pulse train is equal to the number of pulses.

[0090] 因此,随着标记的长度增加2Τ,多脉冲串中脉冲的数量增加I。 [0090] Thus, as the mark length of 2 [tau] increases, the number of pulses in the multi-pulse train is increased I. 此时,在两种定时产生多脉冲。 At this time, the multi-pulse is generated in both the timing. 即使在包括多脉冲串的两个记录标记的情况下,每个记录标记具有相等的脉冲数量,偶数编号的参考周期T的标记的多脉冲串的前端脉冲超前奇数编号的参考周期T的标记的多脉冲串的前端脉冲O. 5Τ。 Even in the case where the multi-pulse train includes two recording marks, recording marks each having a number of pulses equal, marking the leading pulse period T of the reference even-numbered reference period T of the multi-pulse train of mark ahead of the odd-numbered the multi-pulse train O. 5Τ distal pulse. 就是说,第一脉冲和多脉冲串的前端脉冲之间的间隔在偶数编号的标记T中短O. 5Τ。 That is, the interval between the first pulse and the front pulse of the multi-pulse train O. 5Τ short in the even-numbered T mark. 此外,多脉冲串的后端脉冲和最后脉冲之间的间隔在偶数编号的标记T中短O. 5Τ。 Further, the interval between the rear end of the multi-pulse train of short pulse and the last pulse in the even-numbered O. 5Τ symbol T in.

[0091] 如图6所示,在形成记录标记3Τ至IlT的记录脉冲串中,第一脉冲,最后脉冲,和多脉冲串中的脉冲的脉冲宽度几乎相等,脉冲宽度等于参考周期Τ。 [0091] As shown in FIG 6, in the recording pulse train to IlT 3Τ recording mark is formed, the pulse width of the first pulse, last pulse, and pulses of multi-pulse train are almost equal in pulse width equal to the reference period Τ. 多脉冲串的脉冲间隔也等于参考周期Τ。 Multi-pulse train is also equal to the reference pulse interval period Τ. 就是说,多脉冲串的脉冲周期是2Τ,其大小是参考周期T的两倍。 That is, the multi-pulse train of the pulse period is 2 [tau], which is twice the size of the reference period T.

[0092] 此外,如图6所示,形成标记4Τ和5Τ的每个记录脉冲串仅由第一脉冲和最后脉冲构成,不包括实例I中的多脉冲串。 [0092] Further, as shown in FIG 6, and form a marker 4Τ 5Τ each recording pulse train consists of only a first pulse and the last pulse, multi-pulse train is not included in the Example I. 形成标记3Τ的记录脉冲串由单一的脉冲构成。 3Τ recording pulse train forming the mark composed of a single pulse. 因此,考虑到第一脉冲和最后脉冲的组合,在实例I的记录脉冲的情况下,在形成2ηΤ和(2η+1)Τ记录标记的每个记录脉冲中包括相等数量的脉冲,其中η是等于或大于2的整数。 Thus, taking into account the combination of the first pulse and the last pulse of the recording pulse in the case of Example I is in the form 2ηΤ and (2η + 1) of each recording mark in the recording pulse Τ includes an equal number of pulses, which is η is an integer greater than or equal to 2.

[0093] 当用这样的记录脉冲串形成记录标记时,构成多脉冲串的脉冲的脉冲宽度几乎等于参考周期Τ。 [0093] When a recording mark is formed in such a recording pulse train, the pulse constituting the multi-pulse train is almost equal to the pulse width of the reference period Τ. 该脉冲宽度近似于构成常规多脉冲串的脉冲宽度的两倍。 Approximately twice the width of the pulse constituting a conventional multi-pulse train pulse width. 能够相对减少一个脉冲中激光的上升时间和下降时间的影响,以阻止记录标记变形。 Relatively reduce the influence of a laser pulse rise time and fall time, to prevent deformation of the recording mark. 另外,由于每个标记中的第一脉冲和最后脉冲的宽度相等,能够便于准确地记录每个标记的边缘位置。 Further, since the width of each mark is equal to the first pulse and the last pulse, the edge can facilitate accurate recording position of each mark. 特别是当标记的边缘位置改变,并且通过以高传输速率将数据记录到光盘上增加了再现信号的抖动时,实例I的记录脉冲串是有效的。 Especially when the mark edge position change, and when the jitter of the reproducing signal, examples of recording pulse train I are effective at a high transmission rate by recording data onto the optical disc increases.

[0094] 图7示出了根据本实施例的实例2的记录脉冲串。 [0094] FIG. 7 shows a recording pulse trains according to Example 2 of the present embodiment. 与图6的实例I相比,在形成记录标记3T至IlT的记录脉冲串中,相等数量的脉冲构成了2nT和(2n+l)T标记中的每个标记中的多脉冲串。 Compared with the example of Figure 6 I, in the recording pulse train 3T recording mark is formed to IlT, the equal number of pulses constitutes a multi-pulse train 2nT and (2n + l) T mark of each tag. 另外,随着标记的长度增加2Τ,多脉冲串中脉冲的数量增加I。 Further, as the mark length of 2 [tau] increases, the number of pulses of multi-pulse train increases in I.

[0095] 此外,形成记录标记6Τ至IlT的每个记录脉冲串由第一脉冲,多脉冲串,和最后脉冲构成。 [0095] Further, a recording mark of each recording pulse train to IlT 6Τ by the first pulse, a multi pulse train, a last pulse and configured. 例如,形成记录标记6Τ的记录脉冲串包括设置在前端的第一脉冲301,设置在后端的最后脉冲303,和设置在第一脉冲301和最后脉冲303之间的多脉冲串302。 For example, a recording mark a recording pulse train 6Τ includes a first pulse 301 disposed at the front end, provided at the rear end of the last pulse 303, and a multi-pulse train 302 disposed between the first pulse 301 and last pulse 303. 形成记录标记7Τ的记录脉冲串包括设置在前端的第一脉冲304,设置在后端的最后脉冲306,和设置在第一脉冲304和最后脉冲306之间的多脉冲串305。 Forming a recording mark 7Τ recording pulse train comprises a first pulse is provided at a front end 304, disposed at the rear end of the last pulse 306, and a multi-pulse train 305 disposed between the first pulse 304 and last pulse 306. 形成标记3Τ的记录脉冲串只包括第一脉冲。 3Τ recording pulse train forming the mark includes a first pulse only. 形成标记4Τ和5Τ的记录脉冲串各仅由第一脉冲和最后脉冲构成。 Forming a mark and a recording pulse train 5Τ 4Τ each composed of only a first pulse and the last pulse.

[0096] 如图7所示,关于形成记录标记的记录脉冲,对于第一脉冲,最后脉冲,和多脉冲串的脉冲,在相邻的脉冲之间设置相等的间隔。 [0096] As shown in FIG 7, on a recording pulse forming a recording mark, for the first pulse, last pulse, and a pulse train multi-pulse, is provided at equal intervals between adjacent pulses. 在T为偶数编号的记录脉冲串中,第一脉冲和最后脉冲的宽度与其它脉冲的宽度不同。 In the recording pulse train of even-numbered T, the different widths of the first pulse and the last pulse width of the other pulses. 例如,宽度是I. 5Τ。 For example, the width I. 5Τ. T为奇数编号的记录脉冲串中的第一脉冲和最后脉冲的宽度大约是1Τ,构成所有记录标记的多脉冲串的脉冲的宽度大约是1Τ。 T is the odd-numbered recording pulse train of the first pulse and the last pulse width of about 1Τ, width of the pulse constituting the recording mark all multi-pulse train is approximately 1Τ.

[0097] 根据实例2的记录脉冲串,两个相邻的脉冲之间的间隔在每个记录脉冲串中几乎相等。 [0097] The recording pulse trains of Example 2, the interval between adjacent two pulses is almost equal in each recording pulse string. 因此,使用实例2的记录脉冲串形成的每个记录标记在光盘的半径方向具有几乎相等的宽度。 Thus, each instance of a recording mark using a recording pulse train 2 is formed having a width almost equal in the radial direction of the disc. 因此,通过适当地选择激光二极管的峰值功率,能够减少作为来自相邻轨迹的再现信号泄露的串扰,和从相邻轨迹上的记录得到的交叉擦除造成的抖动。 Accordingly, by appropriately selecting the peak power of the laser diode can be reduced as a reproduction signal from the adjacent track leaks crosstalk, and cross obtained from recording on an adjacent track erasure shake.

[0098] 图8示出根据本实施例的实例3的记录脉冲串,与图6中的实例I相比,在形成记录标记3Τ至IlT的记录脉冲串中,相等数量的脉冲构成了2ηΤ和(2n+l)T标记中的每个标记中的多脉冲串。 [0098] FIG. 8 shows a recording pulse train according to an example embodiment of the present embodiment 3, compared with the example in FIG. 6 I, form a recording mark in a recording pulse train to IlT 3Τ, the equal number of pulses constitutes 2ηΤ and (2n + l) T mark multi-pulse train of each tag. 另外,随着标记的长度增加2Τ。 Further, as the mark length increases 2Τ. 多脉冲串中脉冲的数量增加I。 The number of pulses in the multi-pulse train increases I.

[0099] 此外,形成记录标记6Τ至IIT的每个记录脉冲串由第一脉冲,多脉冲串,和最后脉冲构成。 [0099] Further, a recording mark of each recording pulse train to 6Τ IIT by the first pulse, a multi pulse train, a last pulse and configured. 例如,形成记录标记6Τ的记录脉冲串包括设置在前端的第一脉冲401,设置在后端的最后脉冲403,和设直在弟一脉冲401和最后脉冲403之间的多脉冲串402。 For example, a recording mark a recording pulse train 6Τ includes a first pulse 401 disposed at the front end, provided at the rear end of the last pulse 403, and the multi-pulse train disposed directly between 402 pulses 401 and 403 brother a last pulse. 形成记录标记7Τ的记录脉冲串包括设置在前端的第一脉冲404,设置在后端的最后脉冲406,和设置在第一脉冲404和最后脉冲406之间的多脉冲串405。 Forming a recording mark 7Τ recording pulse train comprises a first pulse is provided at a front end 404, 406, and last pulse settings provided at the rear end of the multi-pulse train 406 between the first pulse 404 and last pulse 405. 形成标记3Τ的记录脉冲串只包括第一脉冲。 3Τ recording pulse train forming the mark includes a first pulse only. 形成标记4Τ和5Τ的记录脉冲串各仅由第一脉冲和最后脉冲构成。 Forming a mark and a recording pulse train 5Τ 4Τ each composed of only a first pulse and the last pulse.

[0100] 在实例3的记录脉冲串的情况下,多脉冲串的第一脉冲的宽度与T为奇数编号的标记的记录脉冲串中的其它脉冲不同。 [0100] In the case of Example 3 of the recording pulse train, the multi-pulse train width of the first pulse and the other pulses are different T recording mark burst in odd-numbered. 例如,宽度是约I. 5Τ。 For example, the width is about I. 5Τ. 第一脉冲,最后脉冲,和除多脉冲串的前端脉冲外的其它脉冲的宽度在所有标记中几乎相等。 A first pulse, last pulse, and the pulse width of the other pulse in addition to the front end of the multi-pulse train are almost equal in all tags. 宽度大约是1Τ。 A width of about 1Τ. 对于相邻脉冲之间的宽度,多脉冲串的后端脉冲和最后脉冲之间的间隔大于T为奇数编号的标记中的任何其它相邻脉冲之间的间隔。 The width between adjacent pulses, an interval between the backend pulse of the multi-pulse train and the last pulse interval T is greater than between any other adjacent pulses in the odd-numbered markers. 例如,多脉冲串的后端脉冲和最后脉冲之间的间隔大约是I. 5Τ,而任何其它相邻脉冲之间的间隔是大约I. 5Τ。 For example, the spacing between the rear end of the multi-pulse train pulse and the last pulse of about I. 5Τ, and the interval between any other adjacent pulses is about I. 5Τ.

[0101] 除此之外,当激光功率在T为奇数编号的标记的后端不足时,代替多脉冲串的前端脉冲,在后端的脉冲的宽度可以比其它脉冲的宽度更大。 [0101] In addition, when the laser power is insufficient at the odd-numbered T mark of the rear end, instead of the multi-pulse train of a leading pulse, the pulse width may be larger than the width of the rear end of the other pulses. 另外,第一脉冲和多脉冲串的前端脉冲之间的间隔可以比其它间隔之间的间隔大。 Further, the interval between the first pulse and the front pulse of the multi-pulse train may be larger than the interval between the other intervals.

[0102] 实例3的记录脉冲串的特征在于以实例I和实例2 二者的记录脉冲串的特征为特征。 Wherein the recording pulse train [0102] Example 3 Example 2 is characterized by a recording pulse train to both examples I and is characterized by the features. 在记录标记的边缘位置中出现变化,再现信号的串扰,和记录期间的交叉擦除的严重影响的情况下,通过使用实例3的记录脉冲串形成记录标记可以减少该影响。 Edge positions in the event of changes in the recording mark, a reproduction crosstalk signal, and seriously affect the cross erase during recording, the influence can be reduced by forming a recording mark using the recording pulse trains of Example 3.

[0103] 图9示出了根据本实施例的实例4的记录脉冲串。 [0103] FIG. 9 shows a recording pulse trains according to Example 4 of the present embodiment. 对于上面描述的实例,例如,形成记录标记7T的记录脉冲串包括设置在前端的第一脉冲501,设置在后端的最后脉冲503,和设直在第一脉冲501和最后脉冲503之间的多脉冲串。 For the example described above, for example, a recording pulse train forming the recording mark 7T includes a first pulse 501 disposed at the front end of the last pulse 503 disposed at the rear end, and disposed between the first linear multi-pulse 501 and last pulse 503 burst. 形成记录标记8T的记录脉冲串包括设置在前端的第一脉冲504,设置在后端的最后脉冲506,和设置在第一脉冲504和最后脉冲506之间的多脉冲串505。 Recording pulse train forming a recording mark 8T includes a first pulse 504 disposed at the front end, provided at the rear end of the last pulse 506, and a multi-pulse train 505 disposed between the first pulse 504 and last pulse 506.

[0104] 在这些记录脉冲串中,多脉冲串502和505各由单个脉冲构成。 [0104] In these recording pulse train, the multi-pulse trains 502 and 505 each constituted by a single pulse. 另外,在记录脉冲串9T和IOT中,多脉冲串507和508各包括两个脉冲。 Further, in the recording pulse train and an IOT 9T, multi-pulse train 507 and 508 each include two pulses. 在记录脉冲串IlT中,多脉冲串509包括三个脉冲。 IlT recording pulse train, the multi-pulse train 509 includes three pulses.

[0105] 这样,根据实例4的记录脉冲串,多脉冲串中的每一个在形成记录标记(2n_l)T和2ηΤ的记录脉冲串中包括相等数量的脉冲,其中η表示等于或大于4的整数。 [0105] Thus, according to the recording pulse trains of Example 4, the multi-pulse train in each of the formed recording mark (2n_l) T recording pulse train and 2ηΤ included an equal number of pulses, where η represents integer equal to or greater than 4 . [0106] 因此,随着标记的长度增加2Τ,多脉冲串中的脉冲数量增加I。 [0106] Thus, as the mark length of 2 [tau] increases, the number of the pulse train multi-pulse increase I. 此时,在两种类型的定时产生多脉冲。 At this time, the multi-pulse is generated at the timing of the two types. 即使在包括多脉冲串的两个记录标记的情况下,每个标记各具有相等数量的脉冲,T为奇数编号的参考周期的标记的多脉冲串的前端脉冲超前T为偶数编号的参考周期的标记的多脉冲串的前端脉冲O. 5Τ。 Even in the case where the multi-pulse train includes two recording marks, each mark having an equal number of each pulse, T is the top pulse ahead of a reference period T mark odd-numbered multi-pulse train is even-numbered reference period the multi-pulse train of mark front end pulse O. 5Τ. 就是说,在T为偶数编号的标记中,第一脉冲和多脉冲串的前端脉冲之间的间隔短O. 5Τ。 That is, the shorter the interval between the T is O. even-numbered tags, a first pulse and the front pulse of the multi-pulse train 5Τ. 此外,在T为奇数编号的标记中,多脉冲串的后端脉冲和最后脉冲之间的间隔短O. 5Τ。 Further, in the odd-numbered T mark is, the shorter the interval between the multi-pulse train O. rear end pulse and the last pulse 5Τ.

[0107] 如图9所示,在形成记录标记3Τ至IlT的记录脉冲串中,第一脉冲,最后脉冲,和多脉冲串的脉冲的脉冲宽度几乎相等,该脉冲宽度等于参考周期Τ。 [0107] As shown in FIG. 9, in the recording pulse train to IlT 3Τ recording mark is formed, the pulse width of the first pulse, last pulse, and a multi-pulse train is almost equal to a pulse, the pulse width is equal to the reference period Τ. 多脉冲串的脉冲间隔也等于参考频率Τ。 Multi-pulse train is also equal to the reference frequency pulse interval Τ. 就是说,多脉冲串的脉冲周期是2Τ,是参考脉冲T的大小的两倍。 That is, the multi-pulse train of the pulse period is 2 [tau], is twice the size T of the reference pulse.

[0108] 另外,在实例4中,形成标记5Τ和6Τ的每个记录脉冲串仅由第一脉冲和最后脉冲构成,并且不包括多脉冲串。 [0108] Further, in Example 4, each forming a mark and a recording pulse train 5Τ 6Τ consists only of a first pulse and the last pulse and includes no multi-pulse train. 形成3Τ和4Τ的记录脉冲串各由单个脉冲构成。 And forming a recording pulse train 3Τ 4Τ each composed of a single pulse. 然而,4Τ的记录脉冲串使用比3Τ长O. 5Τ的第一脉冲。 However, the recording pulse train using the first pulse 4Τ 3Τ longer than the O. 5Τ. 因此,考虑到第一脉冲和最后脉冲的组合,在实例4的记录脉冲的情况下,在形成记录标记(2η-1)Τ和2ηΤ记录标记的每个记录脉冲串中包括相等数量的脉冲,其中η表示等于或大于I的整数。 Thus, taking into account the combination of the first pulse and the last pulse of the recording pulse in the case of Example 4, is formed in the recording mark (2η-1) Τ and 2ηΤ recording pulse of each recording mark comprises an equal number of bursts, where η represents an integer equal to or greater than I,.

[0109] 当用该记录脉冲串形成记录标记时,构成多脉冲串的脉冲的脉冲宽度几乎等于参考周期Τ。 [0109] When the recording mark formed by a recording pulse train, the pulse constituting the multi-pulse train is almost equal to the pulse width of the reference period Τ. 该脉冲宽度是构成常规多脉冲串的脉冲的脉冲宽度的两倍。 The pulse width is twice the conventional multi-pulse train constituted of pulses of the pulse width. 可以相对减小脉冲中激光的上升时间和下降时间的影响,以便防止记录标记变形。 Effects can be reduced relative to the laser pulse rise time and fall time, so as to prevent deformation of the recording mark. 另外,由于第一脉冲和最后脉冲在每个标记中的宽度相等,能够很容易地准确记录每个标记的边缘位置。 Further, since the first pulse and the last pulse are equal in width in each mark, it is possible to easily accurately position of each mark edge recording. 特别是当标记的边缘位置被改变并且通过以高传送率将数据记录到光盘上来增加再现信号的抖动时,实例4的记录脉冲串是有效的。 Especially when the mark edge position is changed by a high transfer rate and recording data onto the optical disc reproduction signal jitter increases, examples of recording pulse train 4 is effective.

[0110] 图10示出根据本实施例的实例5的记录脉冲串。 [0110] FIG. 10 shows a recording pulse trains according to Example 5 of the present embodiment. 与图9的实例4相比,在形成记录标记3Τ至IlT的记录脉冲串中,相等数量的脉冲构成(2n-l) T至2ηΤ标记的每个标记中的多脉冲串。 Example 9 compared to FIG. 4, in the recording pulse train to IlT 3Τ recording mark is formed, an equal number of pulses constitutes a multi-pulse train (2n-l) T to each tag in the tag 2ηΤ. 另外,随着标记的长度增加2Τ,多脉冲串中的脉冲数量增加I。 Further, as the mark length increases the number of 2 [tau] pulse, multi-pulse train is increased I.

[0111] 此外,形成记录标记7Τ至IlT的每个记录脉冲串由第一脉冲,多脉冲串,和最后脉冲串构成。 [0111] Further, a recording mark of each recording pulse train to IlT 7Τ by the first pulse, a multi pulse train, and a last pulse train. 例如,形成记录标记7Τ的记录脉冲串包括设置在前端的第一标记601,设置在后端的最后标记603,和设置在第一脉冲601和最后脉冲603之间的多脉冲串602。 For example, a recording mark a recording pulse train comprises a first 7Τ numeral 601 disposed at a front end, a rear end disposed at the end of the flag 603, and a multi-pulse train 602 disposed between the first pulse 601 and last pulse 603. 形成记录标记8Τ的记录脉冲串包括设置在前端的第一标记604,设置在后端的最后标记606,和设置在第一脉冲604和最后脉冲606之间的多脉冲串605。3Τ和4Τ的记录脉冲串只包括第一脉冲。 Forming a recording mark 8Τ recording pulse train comprises a first marker disposed at the distal end 604 is provided at the rear end of the recording the last mark 606, and a multi-pulse train 605.3Τ disposed between the first pulse 604 and last pulse 606 and the 4Τ It includes only a first pulse burst. 5T和6Τ的记录脉冲串各只由第一脉冲和最后脉冲构成。 6Τ 5T recording pulse train and each consists of only a first pulse and the last pulse.

[0112] 如图10所示,在形成关于第一脉冲,最后脉冲,和多脉冲串的脉冲的每个记录标记的记录脉冲中,相邻脉冲之间的间隔几乎相等。 [0112] As shown, in the recording pulse of each recording mark is formed on the first pulse, last pulse, and a multi-pulse train of pulses, the spacing between adjacent pulses is almost equal to 10. 在T为偶数编号的记录脉冲串中,第一脉冲和最后脉冲的宽度与其它脉冲的宽度不同。 In the recording pulse train of even-numbered T, the different widths of the first pulse and the last pulse width of the other pulses. 例如,宽度大约是I. 5Τ。 For example, a width of about I. 5Τ. T为奇数编号的记录脉冲串中的第一脉冲和最后脉冲的宽度约为1Τ,构成所有记录标记的多脉冲串的脉冲的宽度约为1Τ。 T is the width of the recording pulse train of the first odd-numbered pulse and the last pulse of about 1Τ, the pulse width of all constituting the multi-pulse train recording mark about 1Τ.

[0113] 根据实例5的记录脉冲串,在每个记录脉冲串中,相邻的两个脉冲之间的间隔几乎相等。 [0113] According to Example 5 of the recording pulse train, each recording pulse train, the interval between adjacent two pulses is almost equal. 因此,使用实例5的记录脉冲串形成的每个记录标记在光盘的半径方向具有几乎相等的宽度。 Accordingly, each recording mark Example 5 of the recording pulse train formed have almost equal width in the radial direction of the disc. 因此,通过适当地选择激光二极管的峰值功率,能够减少作为来自相邻轨迹的再现信号泄漏造成的串扰,和从相邻轨迹上的记录得到的交叉擦除造成的抖动。 Accordingly, by appropriately selecting the peak power of the laser diode, as is possible to reduce crosstalk from adjacent tracks, a reproduction signal leakage caused by, and obtained from the intersection on the adjacent recording track erasure shake.

[0114] 图11示出了根据本实施例的实例6的记录脉冲串。 [0114] FIG. 11 shows an example of a recording pulse train in accordance with Example 6 of the present embodiment. 对于图9的实例4,相等数量的脉冲构成形成记录标记3Τ至IlT的记录脉冲串中的(2η-1)Τ和2ηΤ标记的每一个中的多脉冲串。 4 for the example of Figure 9, an equal number of pulses constituting a recording mark is formed in 3Τ to IlT (2η-1) Τ recording pulse string and the multi-pulse train in each of 2ηΤ labeled. 另外,随着该标记的长度增加2Τ,多脉冲串中的脉冲数量增加I。 Further, as the length of the mark 2 [tau] increases, the number of pulses in the multi-pulse train is increased I.

[0115] 此外,形成记录标记7Τ至IlT的每个记录脉冲串由第一脉冲,多脉冲串,和最后脉冲串构成。 [0115] Further, a recording mark of each recording pulse train to IlT 7Τ by the first pulse, a multi pulse train, and a last pulse train. 例如,形成记录标记7Τ的记录脉冲串包括设置在前端的第一标记701,设置在后端的最后标记703,和设置在第一脉冲701和最后脉冲703之间的多脉冲串702。 For example, a recording mark a recording pulse train 7Τ comprises a first mark provided at the distal end 701 is provided at the rear end of the last flag 703, and a multi-pulse train disposed between the first pulse 703 and last pulse 701 702. 形成记录标记8Τ的记录脉冲串包括设置在前端的第一标记704,设置在后端的最后标记706,和设置在第一脉冲704和最后脉冲706之间的多脉冲串705。3Τ和4Τ的记录脉冲串只包括第一脉冲。 Forming a recording mark recording pulse train 8Τ comprises a first mark provided at the distal end 704 is provided at the rear end of the last flag 706, a first pulse and setting the recording multi-pulse train 705.3Τ between 706 and 704 and the last pulse of 4Τ It includes only a first pulse burst. 7Τ和6Τ的记录脉冲串各只由第一脉冲和最后脉冲构成。 7Τ 6Τ recording pulse train and each consists of only a first pulse and the last pulse.

[0116] 在实例6的记录脉冲串中,多脉冲串的前端脉冲的宽度与T为偶数编号的标记的记录脉冲串中的其它脉冲的宽度不同。 [0116] In Example 6, the recording pulse train, the different width of the recording pulse train multi-pulse train width of the top pulse and the even-numbered T mark to the other pulses. 例如,该宽度大约是I. 5Τ。 For example, the width is about I. 5Τ. 第一脉冲,最后脉冲,和除多脉冲串的前端脉冲外的脉冲在所有标记中的宽度几乎相等。 A first pulse, last pulse, and a pulse except the distal end of the multi-pulse train pulse width almost equal in all the marks. 该宽度约为1Τ。 The width is about 1Τ. 对于相邻脉冲之间的宽度,多脉冲串的后端脉冲和最后脉冲之间的间隔比T为奇数编号的标记中任何其它相邻脉冲之间的间隔大。 The width between adjacent pulses, an interval between the backend pulse of the multi-pulse train and the last pulse interval between large odd-numbered mark any other adjacent pulses is T ratio. 例如,多脉冲串的后端脉冲和最后脉冲之间的间隔约为I. 5Τ,而任何其它相邻脉冲之间的间隔约为1Τ。 For example, the spacing between the rear end of the multi-pulse train pulse and the last pulse of about I. 5Τ, and the interval between any other adjacent pulses is about 1Τ.

[0117] 除此之外,当激光功率在T为奇数编号的标记的后端不足时,不是多脉冲串的前端脉冲,而是后端脉冲的宽度可以比其它脉冲的宽度大。 [0117] In addition, when the laser power is insufficient at the odd-numbered T mark is the rear end, the front end is not a multi pulse train pulse, but the pulse width of the rear end may be larger than the width of the other pulses. 另外,第一脉冲和多脉冲串的前端脉冲之间的间隔可以比其它间隔之间的间隔大。 Further, the interval between the first pulse and the front pulse of the multi-pulse train may be larger than the interval between the other intervals.

[0118] 实例6的记录脉冲串的特征在于实例I和实例2 二者的记录脉冲串的特征。 Wherein the recording pulse train [0118] Example 6 characterized in that the recording pulse trains of both Example I and Example 2. 在记录标记的边缘位置改变,再现信号的串扰,记录期间交叉擦除等严重影响的情况下,通过使用实例6的记录脉冲串形成记录标记可以减小影响。 In the case of changing the edge positions of recording mark reproducing signal crosstalk, cross erase during recording seriously affect, can reduce the influence of a recording mark formed by a recording pulse train Example 6.

[0119] 这样,根据本实施例,将多脉冲串中脉冲的周期设置为2Τ,大于记录调制码的参考周期Τ。 [0119] Thus, according to the present embodiment, a reference period, the multi-pulse train in the pulse period is set to 2 [tau], larger than the recording modulation code Τ. 因此,即使在提高记录速度的情况下,可减小激光的上升时间和下降时间的影响,实现正确的记录。 Accordingly, even when the recording speed increase, the rise time of the laser can be reduced and fall times, to achieve correct records.

[0120] 除此之外,在上述实例中,利用峰值功率和偏置功率的二进制功率在光盘101上进行记录。 [0120] In addition, in the above example, the peak power and bias power by using binary recording power on the optical disc 101. 功率的种类不限于此,可以采用三种或多种功率用于记录。 Any type of power thereto, and three or more power may be used for recording.

[0121] 图12中的实例7的记录脉冲串与图6中的实例I的记录脉冲串的区别在于除3Τ之外的T为奇数编号的第一脉冲和最后脉冲的幅度较大,就是说,与高电平对应的激光照射功率大于其它脉冲的激光照射功率。 Example 6 Example of [0121] FIG. 127 is the difference between the recording pulse train I of FIG recording pulse train except that 3Τ T of the pulse amplitude of the first pulse and the last odd-numbered large, that is , corresponding to the high-level laser irradiation power than the other pulse of the laser irradiation power. [0122] 如图12所示,在记录脉冲串2nT和记录脉冲串(2n+l) T的每一个中包括相等数量的脉冲,其中η表示等于或大于2的整数。 [0122] 12, the recording pulse train 2nT and a recording pulse train (2n + l) of each T includes an equal number of pulses, where η represents an integer equal to or greater than 2. 记录标记(2η+1)Τ需要形成得比记录标记2ηΤ长。 Recording mark (2η + 1) Τ needs to be formed longer than recording mark 2ηΤ. 因此,在形成记录标记(2η+1)Τ时,与记录标记2ηΤ的形成相比,加热量可以变得不足。 Thus, when forming a recording mark (2η + 1) Τ, the recording marks formed 2ηΤ compared, the amount of heating may become insufficient. 为此,使第一脉冲和最后脉冲的激光照射功率比其它脉冲大。 For this reason, the first pulse and the last pulse of the laser irradiation power is larger than the other pulses. 例如,将第一脉冲和最后脉冲的激光功率设置在比其它脉冲的功率大的功率,并且设置为其它脉冲的功率的I. 5倍或更小。 For example, the laser power of the first pulse and the last pulse is larger than the power provided at the other pulses of power, and power is provided to the other pulses I. 5 times or less. 为了产生这样的记录脉冲串,例如,控制部分104可以包括输出电流比电流源121的大的另一个电流源,和一对相互连接的开关,以形成串联的电流源和开关。 In order to produce such recording pulse train, for example, the control section 104 may include an output current greater than a current source of another current source 121, and a pair of switches interconnected to form a current source and a switch connected in series. 另外,可以调节记录补偿部分108,以便在产生具有记录标记5Τ或更大的偶数编号的记录脉冲串的情况下,产生使开关对处在ON状态的控制信号。 Further, the recording compensating section 108 may be adjusted so as to have a case where a recording mark 5Τ even-numbered recording pulse train or greater is generated, the switch control signal is generated in the ON state.

[0123] 通过为构成分开2Τ的标记的脉冲提供相等的功率,在产生记录脉冲串的过程中能够利用这一规律性。 [0123] By providing equal power for the pulses constituting the marks of separate 2Τ, in generating a recording pulse train in this regularity can be utilized. 因此,与产生每个记录脉冲串以单独补偿各个标记的情况相比,可以简化控制部分104和记录补偿部分108的结构。 Thus, as compared with each of the recording pulse train is generated in the case of each individual marker compensation portion 104 can be simplified and the recording compensation section 108 controls. [0124] 利用这些结构,能够防止不足的激光照射功率减小第一脉冲和多脉冲串的前端脉冲之间与多脉冲串的后端脉冲和最后脉冲之间的记录标记的宽度,脉冲间隔比记录脉冲串2ηΤ的间隔长。 [0124] With these structures, it is possible to prevent insufficient laser irradiation power to reduce the width between the first pulse and the front end of the multi-pulse train and the pulse between the rear end recording pulse and the last pulse of the multi-pulse train of mark, than the pulse interval 2ηΤ recording pulse train interval is long. 因此,可以形成具有正确标记宽度的记录标记。 Thus, the recording mark can be formed with the correct mark width.

[0125] 不是增加记录脉冲串(2η+1)Τ的最后脉冲的激光照射功率,而是可以增加的记录脉冲串(2η+1)Τ中的多脉冲串的后端脉冲的激光照射功率。 [0125] than adding a recording pulse train (2η + 1) of the laser irradiation power Τ last pulse, but may increase the recording pulse train (2η + 1) pulses of laser radiation power of the rear end of the multi-pulse train in Τ. 另外,记录脉冲串3Τ和记录脉冲串4Τ的激光照射功率可以彼此不同。 Further, the recording pulse train 3Τ recording pulse train and laser light irradiation may be different from each other 4Τ power.

[0126] 同样,还是在实例2至6的记录脉冲串中,通过校正预定脉冲的照射功率,能够补偿因均衡记录脉冲串2ηΤ和(2η+1)Τ或记录脉冲串(2n_l)T和2ηΤ中的脉冲数量而造成的激光照射功率不足。 [0126] Similarly, also in the example of the recording pulse train 2 to 6 by the irradiation power calibration predetermined pulse can be compensated by equalizing the recording pulse train 2ηΤ and (2η + 1) Τ or a recording pulse train (2n_l) T and 2ηΤ the number of pulses of laser radiation caused by power shortage.

[0127] 图13示出根据实例2的记录脉冲串的变化实例。 [0127] FIG. 13 illustrates a variation example of a recording pulse train of Example 2. 使记录脉冲串2ηΤ中的第一脉冲和最后脉冲的幅度,即激光照射功率大于其它脉冲的激光照射功率。 So that the amplitude of the first pulse and the last pulse in the recording pulse train 2ηΤ, i.e., the laser irradiation power greater than the power of other laser radiation pulses.

[0128] 图14示出了根据实例3的记录脉冲串的变化实例。 [0128] FIG. 14 shows a variation example of a recording pulse train of Example 3. 减小记录脉冲串(2η+1)Τ中的多脉冲的前端脉冲的激光照射功率,增加后端脉冲的激光照射功率。 Reducing the recording pulse train (2η + 1) irradiated with the laser power of the leading pulse of the multi pulse Τ in, increasing the laser power of the rear end of the irradiation pulses.

[0129] 图15示出了根据实例4的记录脉冲串的变化实例。 [0129] FIG. 15 shows a variation example of a recording pulse train of Example 4. 在第一脉冲和记录脉冲串2ηΤ中的多脉冲的前端脉冲和后端脉冲处增加激光照射功率。 A front end pulse and a rear pulse of the multi pulse at the first pulse and the recording pulse train 2ηΤ laser irradiation power is increased.

[0130] 图16示出了根据实例5的记录脉冲串的变化实例。 [0130] FIG. 16 shows a variation example of a recording pulse train of Example 5. 在记录脉冲串2ηΤ中的第一脉冲和最后脉冲处增加激光照射功率。 The first pulse and the last pulse of the recording pulse train 2ηΤ laser irradiation power is increased.

[0131] 图17示出了根据实例6的记录脉冲串的变化实例。 [0131] FIG. 17 shows a variation example of a recording pulse train of Example 6. 在记录脉冲串2ηΤ中的多脉冲串处增加照射功率。 Multi-pulse train at a recording pulse train 2ηΤ irradiation power is increased.

[0132] 另外,在本实施例中,可以在记录脉冲串中提供电平以利用比偏置功率低的功率驱动激光二极管。 [0132] Further, in the present embodiment, the recording level may be provided to the burst using a power smaller than a bias power laser diode is driven. 例如,在最后脉冲之后,或多脉冲串之前和之后的某个时间,可以在第一脉冲的上升位置,最后脉冲的下降位置上提供具有低于偏置功率的功率的周期。 For example, after the last pulse, or after a certain time and can be provided having a power lower than a bias power period of the first pulse in the raised position, the lowered position of the last pulse before the pulse train. 根据本实施例,即使在提高记录速度时,能够减小激光器的上升时间和下降时间的影响。 According to the present embodiment, even when the recording speed is improved, the rise time of the laser can be reduced and the fall times. 因此,本实施例在低于偏置功率的功率上升到峰值功率时也是有效的。 Accordingly, the present embodiment is also effective when power lower than a bias power rises to peak power. 这种情况下,可以利用记录补偿部分108对每个标记的这些周期的端部位置进行精调节。 In this case, fine adjustment can be 108 to the end position of each mark those periods using the recording compensation section. 因此,可在更准确的位置上记录这些标记。 Thus, these markers can be recorded on more accurate positions.

[0133] 另外,在参考图12至17说明的实例中,改变在预定脉冲的峰值功率的输出。 [0133] Further, in examples 12 to 17 described with reference to the drawing, change in peak power output of a predetermined pulse. 然而,也可以改变用于在光盘上形成标记的其它功率,例如偏置功率,以调节激光照射功率。 However, the power may be changed for other marks formed on the optical disc, such as a bias power, in order to adjust the laser irradiation power. 这种情况下,可在光盘上形成具有更合适形状的标记。 In this case, the mark having a more suitable shape formed on the optical disc.

[0134] 另外,可以对例如第一脉冲的某些或所有段的照射功率,某些或所有多脉冲串,和最后脉冲的某些或所有段的照射功率进行调节,可以利用记录补偿部分108和光束控制部分104针对每个或所有标记共同进行调节。 [0134] Further, for example, may be adjusted irradiation power of some or all of the segments of the first pulse, some or all of the irradiation power of some or all segments of the multi-pulse train and the last pulse, a recording compensation section 108 may be utilized beam control section 104 and adjusted for each joint or all markers. 因此,可将标记记录到更准确的位置。 Thus, recording marks may be more accurate position.

[0135] 因此,可在光盘上记录第一脉冲,最后脉冲,和多脉冲的照射起始位置信息,照射宽度信息,照射结束信息,和照射功率信息。 [0135] Accordingly, the irradiation start position information of the first pulse, last pulse, and a multi-pulse may be recorded on the disk, irradiation width information, irradiation end information, and irradiation power information. 通过在光盘上记录这些种类的信息,光盘设备可以处理各种光盘,从而提高光盘制造中的设计的灵活性。 By these kinds of information recorded on the optical disc, the optical disc device can handle a variety of optical disks, thereby increasing the flexibility in design of the optical disc manufacturing.

[0136] 此外,可以在光盘上记录代码,以识别在记录脉冲串2nT和(2n+l)T的每一个中具有相等的脉冲数量的图2的记录方法,和在记录脉冲串(2η-1)Τ和2ηΤ的每一个中具有相等的脉冲数量的图6的记录方法。 [0136] Further, the code may be recorded on the optical disc to identify the recording method having an equal number of pulses of FIG. 2 is a recording pulse train in each of 2nT and (2n + l) T, a recording pulse train and the (2η- 1) Τ 2ηΤ and each having a recording method of an equal number of pulses of FIG. 因此,能够根据光盘的特征来选择记录方法,从而提高光盘制造中设计的灵活性。 Accordingly, it is possible to select the recording method according to the characteristics of the optical disc, thereby increasing the flexibility of the optical disc manufacturing design.

[0137] 另外,可以将标记构成信息记录到光盘上,以区别记录标记3Τ至IlT中的每一个是由单个脉冲构成,只由第一脉冲构成,只由第一脉冲和最后脉冲构成,还是由第一脉冲,多脉冲,和最后脉冲的全部来构成。 [0137] Further, configuration information mark may be recorded onto the optical disc, a recording mark to distinguish 3Τ to IlT Each is composed of a single pulse, consists of only a first pulse, consists of only a first pulse and a last pulse, or a first pulse, a multi pulse, and last pulse constituted all.

[0138] 当在光盘上记录了这些种类的信息时,例如,在光盘最内侧圆周上的数据信息区上进行记录。 [0138] When these kinds of information recorded on the optical disc, e.g., information on a data recording area on the innermost circumference of the optical disc. 在将光盘装载到光盘驱动器之后,或刚好在记录数据之前的启动期间可以读取这些信息。 After the disc is loaded to the optical disk drive, during or immediately before starting recording the data information can be read.

[0139] 利用根据本发明的脉冲波形结构,与在每个IT将多脉冲的数量增加I的现有技术相比,多脉冲的宽度和相邻多脉冲之间的间隔几乎加倍。 [0139] With the pulse waveform configuration according to the present invention, the spacing between the multi-pulse compared to the amount of increase in each of the I prior art, the width of the multi-pulse and an adjacent multi-pulse almost doubled. 即使提高记录速度,也能正确地进行记录。 Even if the recording speed, can be accurately recorded.

[0140] 另外,除多脉冲之外,将包括第一脉冲和最后脉冲的给定脉冲的脉冲宽度和任何相邻脉冲之间的脉冲间隔设定为大约1Τ,以便能够增强效果。 [0140] Further, in addition to the multi-pulse, the pulse interval between pulse comprises a first pulse and the last pulse width of a given pulse and any adjacent pulses is set to about 1Τ, to be able to enhance the effect.

[0141] 此外,本实施例提供了规律性,以致多脉冲的数量每2Τ增加1,以便利用如同每个IT产生的多脉冲的简单结构来产生多脉冲。 [0141] Further, the present embodiment provides regularity so that the number of multi-pulses is increased by 1 per 2Τ to a simple structure of the multi-pulse generation as if each IT to generate a multi-pulse.

[0142] 本实施例描述了相变光盘,本实施例也可应用于磁光盘,具有与本实施例相同的效果。 [0142] This example describes a phase change optical disk, the present embodiment is also applicable to magneto-optical disc, having the same effect as the embodiment of the present embodiment.

[0143](实施例2) [0143] (Example 2)

[0144] 如实施例I中所述,通过均衡记录脉冲串2ηΤ和(2n+l)T或记录脉冲串(2η_1)Τ和2ηΤ的每个多脉冲串中的脉冲数量,两个记录脉冲串的激光照射功率可以彼此不同。 [0144] In the embodiments as described in Example I, by a recording pulse train 2ηΤ equalizing and (2n + l) T or the recording pulse train (2η_1) Τ and the number of pulses in each multi-pulse train in 2ηΤ, two recording pulse train laser irradiation power may be different from each other. 这是由于标记/间隙的占空比不同,或多脉冲串之间的平均值不同。 This is due to the duty cycle of tag / gap or an average value between the different bursts.

[0145] 图18Α和18Β示出了从形成的记录标记获得的记录标记和再现信号。 [0145] FIG 18Α 18Β illustrate and obtained from a recording mark a recording mark is formed and a reproduction signal. 该记录标记由用于形成图10的标记9Τ的记录脉冲串2和形成标记IOT的记录脉冲串8形成。 The recording mark by the mark in FIG. 10 for forming a recording pulse string 2 formed 9Τ recording pulse train marks the IOT 8 is formed.

[0146] 如图18Α所示,在记录脉冲串2中,第一脉冲9和最后脉冲10各具有IT的脉冲宽度,并提供适合于光盘的记录膜的标记形成热能。 [0146] As shown, in the recording pulse train 2, a first pulse 9 and a last pulse 10 has a pulse width of each of IT 18Α, and to provide an optical disc suitable for recording marks formed film thermal energy. 因此,要形成的记录标记4具有几乎均匀的宽度,再现信号6几乎成形得象具有标记中心没有下凹的梯形。 Thus, a recording mark 4 to be formed has an almost uniform width, to obtain a reproduction signal 6 is almost shaped like a trapezoid having no depressed mark center. 就是说,再现信号6是适合的。 That is, the reproduction signal 6 is appropriate.

[0147] 另一方面,在记录脉冲串8中,由于第一脉冲和最后脉冲各具有I. 5Τ的宽度,标记形成热能在标记的前沿和后沿增加。 [0147] On the other hand, in the recording pulse train 8, since the first pulse and the last pulse has a width of each I. 5Τ, a mark is formed in the heat increases along the leading and trailing mark. 因此,要形成的记录标记13的宽度在其前沿和后沿增力口,以使标记13成形得象阵列。 Thus, the width of the recording mark 13 to be formed at its leading and trailing edges booster port, so shaped like a numeral 13 array. 从象阵列一样成形的标记13获得的再现信号14具有由在上升缘和下降缘上增加的幅度变形的双峰形波形。 Numeral 13 a reproduction signal obtained from the image as an array 14 having a bimodal shaped waveform distortion by an increase in the amplitude of the rising and falling edges. 当通过二进制化或AD转换将这种双峰形再现信号转换成数字信号时,在波形的上升缘和下降缘上发生抖动,导致再现期间的比特误差。 When such a signal is converted into a digital signal reproduced by a bimodal binarization or AD conversion, jitter occurs on the rising edge and falling edge of the waveform, resulting in a bit error during reproduction.

[0148] 在本实施例中,为了在每个记录脉冲串中获得适当的标记形成热量,设定多脉冲串的脉冲位置和脉冲宽度,同时用占空比值或多脉冲串的幅度的平均值作为目标。 [0148] In the present embodiment, in order to obtain the proper burst in each recording mark is formed in the heat setting pulse position and pulse width of the multi-pulse train, while the average value of the duty ratio or the amplitude of the pulse train as the target.

[0149] 图19示出了本实施例的记录脉冲串16,由记录脉冲串16形成的记录标记15,和由记录标记15获得的再现信号17。 [0149] FIG. 19 shows a recording pulse train 16 of the present embodiment, the recording pulse train formed by the recording marks 16 15, and a reproduction signal 15 obtained by the recording mark 17. 下面描述记录调制码的长度IOT为例子。 IOT length will be described below as an example of a recording modulation code.

[0150] 记录脉冲串16由第一脉冲18,多脉冲串19,和最后脉冲20构成。 [0150] 16 recording pulse train 18 by the first pulse, multi-pulse train 19, and last pulse 20.

[0151] 由第一脉冲上升定时TSFP和第一脉冲下降定时TEFP设定第一脉冲18的定时。 [0151] increased by the first pulse timing TSFP and first pulse falling timing of the timing TEFP of the first pulse 18 is set. 同时,由最后脉冲上升定时TSLP和最后脉冲下降定时TELP设定最后脉冲20的定时。 Meanwhile, by the last pulse rising timing TSLP and last pulse falling timing of the timing TELP of the last pulse 20 is set. 由多脉冲串的上升定时TSMP和脉冲宽度TMP设定多脉冲串19的排列。 The multi-pulse train by a rise timing TSMP and a pulse width TMP arranged multi-pulse train 19 is set.

[0152] 下面将讨论构成该记录脉冲串16的参数中的变化和记录标记15的形状和再现信号17的波形之间的关系。 [0152] and variations will be discussed below the recording parameter constituting a recording pulse train 16 of the marker 15 and the relationship between the shape of the waveform signal 17 reproduced.

[0153] 由第一脉冲上升定时TSFP确定记录标记15的前沿位置21。 [0153] TSFP rising timing of the first pulse is determined by the recording mark leading edge position 15 of 21.

[0154] 记录标记15的前沿位置21被来自前一个记录标记的热干扰转移,以致再现信号17如图19的箭头22所指示而改变。 [0154] 15 recording mark leading edge position 21 of a recording mark by thermal interference from the previous transfer, so that the reproduction signal 17 arrow 22 indicated in FIG. 19 is changed. 为了控制记录标记15的前沿位置21到适当的位置,根据前一个间隙的长度和记录标记15的长度适当地设定第一脉冲上升定时TSFP。 In order to control the leading edge position 15 of the recording mark 21 to a proper position according to the length and recording mark length before a gap 15 is appropriately set to a first pulse rising timing TSFP. 因此,不管如何组合前面的间隙和后面的记录标记,可根据记录调制码将记录标记的前沿位置21控制到适当的位置,减小再现信号的波形的前沿22上的抖动分量。 Thus, regardless of the combination of the foregoing gap and behind the recording mark, the recording modulation codes may be recorded control mark leading edge position 21 to the appropriate position, reducing jitter components on a leading edge 22 according to the reproducing waveform signal.

[0155] 另一方面,由最后脉冲下降定时TSLP确定记录标记15的后沿位置23。 [0155] On the other hand, decreased by the last pulse timing TSLP determines a recording position of the trailing edge 15 of the mark 23. 记录标记15的后沿位置23被来自后一个记录标记的热干扰转移,以致再现信号17如图19的箭头24所指示而改变。 After a recording mark trailing edge position of the recording mark 23 is from 15 to transfer the thermal interference, so that the signal reproduced by arrow 17 indicated in FIG. 19 and 24 change.

[0156] 为了将记录标记15的后沿位置23控制适当位置,根据前面的间隙的长度和记录标记15的长度来适当地设定最后脉冲下降定时TSLP。 [0156] In order to mark edge positions recorded after 23 controls the position 15 to appropriately set the fall timing TSLP of the last pulse and the length of the recording mark length in front of the gap 15. 因此,不管如何组合记录标记和后面的间隙,可根据记录调制码将记录标记的后沿位置23控制到适当的位置,减小再现信号的波形的后沿24上的抖动分量。 Thus, regardless of the combination of the recording mark and the following space, according to the recording modulation codes may be recorded after the position mark 23 along the control to the appropriate location, to reduce the jitter component of the reproduced signal waveform 24 along.

[0157] 由第一脉冲下降定时TEFP确定记录标记15的前沿宽度25。 [0157] by the first pulse falling timing TEFP determines a width of the recording marks 25 the leading edge 15. 第一脉冲下降定时TEFP确定第一脉冲18的宽度,并允许控制施加到记录标记前沿的热能,以便将记录标记的前沿宽度25控制到适当的宽度。 A first pulse falling timing TEFP determines a width of the first pulse 18, and allows control of the leading edge of the recording mark is applied to the heat, so that the width of the leading edge of the recording mark 25 is controlled to an appropriate width. 象记录标记的前沿位置21那样,来自前面的记录标记的热干扰和记录标记15的代码长度对该记录标记的前沿宽度25的影响较小。 Like the leading edge position 21 of the recording mark as the recording marks from the previous recording mark thermal interference and the code length of the recording mark 15, the leading edge 25 of a width less affected. 因此,通常将第一脉冲设定为常数值,而与前面的间隙的代码长度和记录标记15的代码长度无关。 Thus, typically the first pulse is set to a constant value, and the code length of the recording mark in front of the gap 15 is independent of the code length.

[0158] 如此设定第一脉冲下降定时TEFP,以致能够将记录标记的前沿宽度25控制到适当的宽度,并且能够减小再现信号17的前沿上的尖头信号。 [0158] As a first pulse falling timing TEFP is set, so that the leading edge of the recording mark can be controlled to an appropriate width 25 width, can be reduced and a reproduction signal on the leading edge of the tip 17 of the signal. 因此,在利用长记录调制码获得的再现信号中,能够减小由前沿上的幅度变化引起的抖动分量。 Thus, the reproduction signal using a long recording modulation code obtained, it is possible to reduce the jitter component caused by changes in amplitude on the leading edge.

[0159] 由最后脉冲上升定时TSLP确定记录标记15的后沿宽度27。 [0159] by the last pulse rising timing of TSLP determined after recording mark 15 in the width of 27. 最后脉冲上升定时TSLP确定最后脉冲20的宽度,并允许控制施加到记录标记的后沿的热能,以便将记录标记的后沿宽度27控制到适当的宽度。 The last pulse rising timing TSLP determines a width of the last pulse 20, and after allowing to control the application of heat along the recording mark, so as to record the mark 27 controls the width to the desired width. 象记录标记的后沿位置23那样,来自后面的记录标记的热干扰和记录标记15的代码长度对该记录标记的后沿宽度27的影响较小。 After the recording mark edge position as 23 above, from the back of the recording marks of the thermal interference and the code length of the recording mark 15 after the recording mark 27 in the width has little effect. 因此,通常将最后脉冲上升定时设定在恒定值,而与后面的间隙的代码长度和记录标记15的代码长 Thus, typically the last pulse rising timing is set at a constant value, and the code 15 and the code length of the recording mark length behind the gap

度无关。 Irrespective of the degree.

[0160] 如此设定最后脉冲上升定时TSLP,以致能够将记录标记15的后沿宽度27控制到适当的宽度,并且能够减小再现信号17的后沿上的尖头信号。 [0160] As set the TSLP of the last pulse rise timing, so that the records can be labeled in the width 15 of the control 27 to the desired width, and the tip of the reproduction signal can be reduced on the trailing edge of the signal 17. 因此,在由长记录调制码获得的再现信号中,能够减小由后沿上的幅度变化引起的抖动分量。 Thus, the reproduction signal of a long recording modulation code obtained, it is possible to reduce the jitter component caused by a change in the magnitude of the trailing edge.

[0161] 由多脉冲串的上升定时TSMP和多脉冲串宽度TMP确定记录标记15的中心周围的宽度29。 [0161] The multi-pulse train by the rising timing TSMP and a multi-pulse train width TMP determining the recording mark width around the center 15 of 29. 如实施例I所描述的,将多脉冲串的周期设定在2T,以便即使在高传送速率时用多脉冲串确定地驱动激光二极管。 As described in Example I, the period of the multi-pulse train is set at 2T, so that a multi-pulse train is determined to drive the laser diode, even when a high transfer rate.

[0162] 在以高传送速率和高密度记录的情况下,与以低传送速率和低密度记录的情况相t匕,缩短了激光束的照射时间。 [0162] In the case where a high transmission rate and high density recording, the transmission rate at low recording density and with t dagger, shortening the irradiation time of the laser beam. 因此,需要更准确地设置多脉冲串的宽度,以形成合适的记录标记宽度。 Accordingly, it is necessary to set the width multi-pulse train more accurately, to form a proper recording mark width. 此外,当把多脉冲串的周期设定在2T时,使多脉冲串的宽度TMP和多脉冲串的间隙33大于周期1T,以使热能很可能被不均匀地分配。 Further, when the period of the multi-pulse train is set at 2T, the width TMP of the gap and the multi-pulse train multi-pulse train 33 is greater than the period 1T, so that thermal energy is likely to be unevenly distributed. 因此,适当地设定多脉冲串对形成最佳宽度的记录标记是很重要的。 Thus, the appropriately set multi-pulse train to form the best recording mark width is very important.

[0163] 根据多脉冲串19的总热能在记录标记15的中心的周围形成标记。 [0163] marker 15 is formed around the center of the mark according to the total energy of the multi-pulse train 19 in the recording. 因此,由多脉冲串19的上升定时TSMP和构成多脉冲串19的脉冲的脉冲宽度TMP确定多脉冲串的结构,能够控制施加到记录标记的主要部分的中心周围部分的热能。 Thus, multi-pulse train 19 by the rising timing TSMP and a pulse 19 constituting the pulse train multi-pulse width TMP of the multi-pulse train to determine the structure, it is possible to control the heat applied to the portion around the center of the main portion of the recording mark. 因此,能够将记录标记15的中心周围的宽度29调节到适当的宽度。 Accordingly, the recording mark width around the center 15 of 29 is adjusted to an appropriate width.

[0164] 以这种方式,将记录标记15的中心周围的宽度29调节到适当宽度,从而减小再现信号17的中心周围的幅度变化。 [0164] In this manner, the recording mark width around the center 15 of a suitable width is adjusted to 29, thereby reducing the variation around the center of the reproduction signal amplitude of 17. 因此,能够减小由长记录调制码获得的再现信号17的幅度变化引起的抖动分量。 Accordingly, it is possible to reduce the jitter component caused by a change in the amplitude of the reproduction signal obtained by a long recording modulation code 17.

[0165] 如上所述,由多脉冲串19的总热能形成记录标记17的中心周围的部分。 [0165] As described above, the center portion around the mark 17 is formed by the recording of the total energy of the multi-pulse train 19. 此时,可用两个不同的精确度定义包括多脉冲串19的区域。 In this case, the accuracy of the available two different region 19 is defined to include multi-pulse train. 根据记录材料的灵敏性和光盘的标记记录速度来使用不同的精确度。 The mark recording sensitivity and speed of the optical disk recording material using different accuracy.

[0166] 在标记记录速度相对低并具有低记录灵敏性的记录材料的光盘中,记录标记15的主要部分中心周围的标记形式与从前端多脉冲19A的上升定时到后端多脉冲19C的下降定时的范围有关,并主要受其影响。 [0166] In the optical disc mark recording speed is relatively low and having a low recording sensitivity of the recording material, the recording mark labeled form around the center of a main portion 15 and the front end of the rising timing of the multi-pulse 19A to 19C of the rear end of the multi pulse down For timing range, and primarily affected. 其中前端多脉冲19A设置在多脉冲串19的前端,后端多脉冲19C设置在多脉冲串的后端。 19A wherein the front end of the multi-pulse multi-pulse train disposed front end, a rear end 19 of the multi-pulse 19C is provided at the rear end of the multi-pulse train. 该范围被称为第一多脉冲区31。 This range is referred to as a first multi-pulse area 31.

[0167] 另一方面,在标记记录速度高并具有高记录灵敏性的记录材料的光盘中,记录标记15的中心周围的标记形式与从构成记录脉冲串的第一脉冲下降定时TEFP到最后脉冲的上升定时TSLP的范围有关,并主要受其影响。 [0167] On the other hand, the high mark in the optical disk having a high recording speed and the recording sensitivity of the recording material, the recording mark 15 labeled form around the center of the first pulse constituting a recording pulse train is lowered to the last pulse from the timing TEFP the rising timing TSLP of the relevant range, and primarily affected. 该范围被称为第二多脉冲区32。 This range is referred to as a second multi-pulse area 32.

[0168] 另外,根据用于形成光盘的记录材料的标记的工艺,给出两种指标来指示形成记录标记15的中心周围部分的热能。 [0168] Further, the process according to the recording material for forming marks for the optical disc, two metrics are given to indicate thermal recording mark formed around the central portion 15.

[0169] 在光盘具有多脉冲区中的光照射部分的特定冷却时间,即多脉冲串19的间隙33对形成记录标记15的中心周围的部分很重要的记录材料的情况下,用多脉冲占空比作为热能的指标。 [0169] In certain cooling time the optical disc has a light irradiation portion of the multi pulse zone, the gap i.e. multi-pulse train 19 33 formed recording mark portion around the center 15 of the case is important to the recording material, multi pulse duty air ratio as an indicator of thermal energy. 多脉冲占空比是通过将多脉冲宽度TMP除以多脉冲区中的多脉冲串的周期获得的值(图19中为2T)。 Multi-pulse duty is a value (in FIG. 19 is a 2T) obtained by dividing the multi-pulse width TMP cycle multi-pulse train multi-pulse area.

[0170] 另一方面,在光盘具有多脉冲区中的平均光照射能量对形成记录标记15的中心周围的部分很重要(或相关性强)的记录材料的情况下,用多脉冲幅度平均值作为热能的指标。 The [0170] On the other hand, the average light irradiation energy in the multi-pulse area is important in an optical disc having a recording mark is formed on the part 15 around the center (or correlation is strong) of the recording material, multi-pulse amplitude average value with as an indicator of thermal energy. 多脉冲幅度平均值是通过将多脉冲区的幅度的整数除以多脉冲区中的时间宽度获得的值。 The multi-pulse amplitude average value is a value obtained by adding an integer multiple of the amplitude of the pulse width divided by the time zone of the multi-pulse area.

[0171] 如上所述,用多脉冲占空比和多脉冲幅度平均值作为评估指标,调节多脉冲串19的上升定时TSMP和多脉冲串宽度TMP,和适当地维护记录标记15的中心周围的宽度29。 [0171] As described above, with the multi-pulse duty and a multi-pulse amplitude average value as an evaluation index, adjusting the multi-pulse train 19 rising timing TSMP and the TMP width multi-pulse train, and maintained properly around the center of the recording mark 15 width 29.

[0172] 另外,为了使记录标记的前沿上的宽度25均匀,优选在下面的定时,以更平衡的方式,进行记录标记的中心周围的宽度29,记录标记的后沿上的宽度27的设置: Provided on the rear [0172] Further, in order to make the recording width of a mark on the leading edge of a uniform 25, the timing is preferably in the following, in a more balanced manner, the recording mark width around the center 29, a recording mark in the width 27 :

[0173] 进行设置以均衡第一脉冲18和多脉冲19的前端脉冲19A之间的前端间隙宽度FSP与多脉冲19的后端脉冲19C和最后脉冲20之间的后端间隙宽度LSP。 [0173] back-end gap 20 is provided between the rear end of the last pulse to pulse 19C and the tip clearance between the first equalizing pulse 18 and the multi-pulse. 19A leading pulse 19 and the multi-pulse width FSP 19 width LSP. 这样,进行FSP=LSP的设置,以便把多脉冲19施加的能量以平衡的方式发射到记录标记的中心周围的部分,而不偏置到记录标记的前沿或后沿。 In this way, FSP = LSP is set so that the energy of the multi-pulse 19 is applied in a balanced manner is transmitted to the center portion around the recording mark, not biased to the leading or trailing edge of the recording mark. 因此,使记录标记的宽度25,29,和27几乎相等,并可在纵向以相等的宽度形成记录标记。 Therefore, the width of the recording marks 25, 29, and 27 are almost equal, and in the longitudinal direction to form a recording mark equal width.

[0174] 如上所述,用多脉冲占空比和多脉冲幅度平均值作为指标,设定多脉冲串的上升定时TSMP和多脉冲区中的多脉冲串的宽度TMP,前端间隙的宽度FSP,和后端间隙的宽度LSP,以使这些参数起到预定目标的作用。 [0174] As described above, with the multi-pulse duty and a multi-pulse amplitude average value as an index, setting the gap width FSP of the front end of the multi-pulse train width TMP rising timing TSMP of the multi-pulse train and a multi-pulse region,, and the width LSP of the backend space, so that they function as the predetermined target parameters. 因此,即使在高传送速率以高密度进行记录的情况下,能够以适当的宽度形成记录标记。 Thus, even in the case of high transfer rate recording at a high density, a recording mark can be formed in an appropriate width. 因此,能够减小再现信号的中心周期的波形幅度中的缩减30,并减小由长记录调制码中的再现信号波形的幅度中的变化引起的抖动分量。 Accordingly, 30 can be reduced to reduce the amplitude of the reproduction waveform of the periodic signal in the center of, and reduce jitter components caused by a change in the amplitude of a reproduction signal waveform in a long recording modulation code in.

[0175] 参考图20,下面描述根据本实施例用于计算记录脉冲串16的每个定时的具体方法。 [0175] Referring to FIG 20, the timing of each burst a specific method of embodiment 16 for computing the present embodiment will be described below in accordance with the recording. 图20以从上面开始的顺序示出了参考时钟,记录调制码,ηΤ为偶数编号的记录脉冲串,和ηΤ为奇数编号的记录脉冲串。 FIG 20 in the order from the top shows the reference clock, a recording modulation code, ηΤ of even-numbered recording pulse train, and ηΤ recording odd-numbered bursts. 图20的水平方向作为时基。 FIG 20 is a horizontal direction as a base.

[0176] 记录调制码35具有大小是参考时钟周期Τ34的η倍(η是等于或大于I的自然数)的记录调制码长度,作为参考单元长度。 [0176] recording modulation code has a size of 35 [eta] is a reference clock period of times Τ34 ([eta] is a natural number greater than or equal to I) of a recording modulation code length, the unit length as a reference. 当η是偶数时,脉冲在偶数编号的ηΤ36指示的位置下降。 When η is an even number, the even-numbered pulses ηΤ36 indicating a lowered position. 当η是奇数时,脉冲在奇数编号的ηΤ37指示的位置下降。 When η is an odd number, pulse falls at a position indicated by the odd-numbered ηΤ37. 当用如实施例I的RLL (2,10)调制方案调制记录调制码35时,代码长度是3Τ到11Τ。 When RLL as in Example I, with the embodiment 35 (2,10) modulation scheme recording modulation code, the code length is to 3Τ 11Τ.

[0177] 如上所述,记录脉冲串16由第一脉冲18,多脉冲串19,和最后脉冲20构成。 [0177] As described above, the recording pulse train 16 is composed of a first pulse 18, a multi-pulse train 19, and last pulse 20.

[0178] 由第一脉冲18的上升定时TSFP和第一脉冲18的下降定时TEFP确定第一脉冲18的定时。 [0178] TSFP timing of a first pulse and a rising timing of a first pulse 18 decreases the timing TEFP of the first pulse 18 is determined 18. 由于TSFP的值不影响多脉冲串的后续算法结果,为简化说明,未示出该值。 Since the value of TSFP does not affect the subsequent arithmetic results of the multi-pulse train, for the simplicity of explanation, the value is not shown. 该值被设定在TSFP = O。 This value is set at TSFP = O. 如参考图19所描述的,根据前面间隙的代码长度和记录标记的代码长度适当地设定TSFP。 As described with reference to FIG. 19, TSFP appropriately set according to the code length and the code length of the recording mark in front of the gap. 如上所述,通常将TSFP设定为常数值,而与前面间隙的代码长度和记录标记的代码长度无关。 As described above, TSFP typically set to a constant value regardless of the code length and the code length of the recording mark in front of the gap.

[0179] 另一方面,由最后脉冲20的上升定时TSLP和最后脉冲20的下降定时TELP确定最后脉冲20的定时。 [0179] On the other hand, by the rising timing TSLP of the last pulse 20 and last pulse falling timing TELP 20 determines the timing of the last pulse 20. 如上所述,将TSLP设定为常数值,而与后面间隙的代码长度和记录标记的代码长度无关。 As described above, TSLP is set to a constant value regardless of the code length and the code length of the recording mark behind the gap. TSLP(未示出)被设定为如TSLP = O,减小了再现波形的后沿上的尖头信号。 The TSLP (not shown) is set as TSLP = O, it reduces the overshoot in the waveform after reproduction direction. 如参考图19所描述的,根据后面间隙的代码长度和记录标记的代码长度适当地设定TELP。 As described with reference to Figure 19, TELP is appropriately set according to the code length and the code length of the recording mark behind the gap.

[0180] 下面将描述计算多脉冲区中的多脉冲串19的上升定时TSMP,多脉冲串的宽度ΤΜΡ,前端间隙的宽度FSP,和后端间隙的宽度LSP的定时的方法。 Rise [0180] will be described below calculates multi-pulse train multi-pulse area 19 timing TSMP, the timing of the width LSP of the width FSP method of multi-pulse train width ΤΜΡ, the tip clearance, and the rear end of the gap.

[0181] 下面讨论实例1,在实例I中,影响记录标记的中心周围宽度的范围是第一多脉冲区31。 [0181] Example 1 discussed below in Example I, the influence range of the width of recording mark around the center of the first multi-pulse area 31. 控制多脉冲串的定时的指标是多脉冲占空比。 Controlling the timing of the multi-pulse train is a multi-pulse duty cycle indicator.

[0182] 第一,针对记录调制码长度是偶数编号的ηΤ的情况进行操作。 [0182] First, for the case where a recording modulation code length is an even-numbered ηΤ operation. 在偶数编号的ηΤ的情况下,相对于偶数编号的参考定时TRE计算多脉冲串19的上升定时TSMP,偶数编号的参考定时TRE从记录调制码35的上升定时延迟2T。 In the case of the even-numbered ηΤ respect to even-numbered reference timing TRE calculate multi-pulse train 19 rising timing TSMP, even numbered reference timing TRE from rising timing of the recording modulation code 35 delay 2T.

[0183] 如图20所示,由下面的运算(40)确定前端间隙的宽度FSP和后端间隙的宽度LSP。 [0183] As shown in FIG. 20, a front gap is determined by the following calculation (40) and the width FSP width LSP of the backend space.

[0184] FSP = 2T-TEFP+TSMP [0184] FSP = 2T-TEFP + TSMP

[0185] LSP = 2T-TMP-TSMP . · . (40) [0185] LSP = 2T-TMP-TSMP. ·. (40)

[0186] 另外,当如上所述设定FSP = LSP,以便保持记录标记宽度的前沿和后沿之间的平衡时,根据运算(40),通过下面的运算(41)获得多脉冲串的上升定时TSMP。 [0186] Further, as described above when the set FSP = LSP, so as to maintain a balance between the recording mark width of leading and trailing edges, based on the calculation (40), rising multi-pulse train is obtained by the following operation (41) the timing TSMP.

[0187] TSMP = (TEFP-TMP) /2 . . . (41) [0187] TSMP = (TEFP-TMP) / 2... (41)

[0188] 针对记录调制码长度是奇数编号ηΤ的情况进行运算。 [0188] for the case where a recording modulation code length is an odd-numbered ηΤ performing operations. [0189] 相对于奇数编号的参考定时TRO计算ηΤ为奇数编号的TSMP,奇数编号的参考定时TRO从记录调制码35的上升定时延迟3Τ。 [0189] with respect to the odd numbered reference timing TRO calculated ηΤ odd-numbered TSMP, the odd-numbered reference timing TRO from the rising timing of the recording modulation code 35 delay 3Τ.

[0190] 参考图20,由下面的运算(42)确定前端间隙的宽度FSP和后端间隙的宽度LSP。 [0190] Referring to FIG 20, a front gap is determined by the following calculation (42) and the width FSP width LSP of the backend space.

[0191] FSP = 3T-TEFP+TSMP [0191] FSP = 3T-TEFP + TSMP

[0192] LSP = 3T-TSMP-TMP . · . (42) [0192] LSP = 3T-TSMP-TMP. ·. (42)

[0193] 当如上所述设定FSP = LSP,以便保持记录标记宽度的前沿和后沿之间的平衡时,根据运算(42),通过下面的运算(43)获得多脉冲串的上升定时TSMP。 [0193] When the setting described above FSP = LSP, so as to maintain a balance between the leading and trailing edges of the recording mark width, operation (42), multi-pulse train is increased by the following operation (43) obtained according to the timing TSMP .

[0194] TSMP = (TEFP-TMP-lT)/2 . . . (43) [0194] TSMP = (TEFP-TMP-lT) / 2... (43)

[0195] 另一方面,作为控制目标的多脉冲占空比MPD是将多脉冲串19的宽度TMP除以第一多脉冲区31中的多脉冲串19的周期(图20中是2T)获得的值。 [0195] On the other hand, as a multi-pulse duty MPD control target is multi-pulse train width TMP of 19 divided by the period of the first multi-pulse train multi-pulse area 31 of 19 (in FIG. 20 is a 2T) to obtain value. 因此,由下面的运算 Accordingly, by the following operation

(44)获得多脉冲占空比MPD。 (44) to obtain a multi-pulse duty MPD.

[0196] MPD = TMP/2T [0196] MPD = TMP / 2T

[0197]于是,TMP = 2T · MPD · · · (44) [0197] Thus, TMP = 2T · MPD · · · (44)

[0198] 如上所述,将第一脉冲18的下降定时TEFP设定为常数值,而与前面间隙的代码长度和记录标记的代码长度无关。 [0198] As described above, the fall timing TEFP of the first pulse 18 is set to a constant value regardless of the code length and the code length of the recording mark in front of the gap. 在该实例中,将TEFP设定为下面使再现信号的波形前沿上的尖头信号减小的部分指示的值。 In this example, TEFP is set to a value below that the tip portion of the indicating signal is reduced on the leading edge of the waveform of the reproduction signal.

[0199] TEFP = I. 5T [0199] TEFP = I. 5T

[0200] 另外,由于需要多脉冲占空比MPD适当地保持记录标记的中心周围的宽度29,选择使再现信号的中心周围的波形幅度更小地减小的值。 [0200] Further, since the multi-pulse duty MPD required to properly maintain the width around the center of the recording mark 29 to select the value of the playback signal waveform amplitude around the center of the smaller decreases. 根据对再现信号的波形的观察结果,由下面的等式表示本实例中MPD的适当值。 The result of observation of the waveform of the reproduction signal, by the following equation represents the proper value of MPD in the present example.

[0201] MPD = O. 5 [0201] MPD = O. 5

[0202] 将TEFP和MPD的值代入运算表达式(40)至(44),以计算记录调制代码长度中的FSP, LSP, TSMPjP TMP的定时值。 [0202] The values ​​of TEFP and MPD are substituted into the operational expressions (40) to (44), to calculate a timer value of the code length of the recording modulation FSP, LSP, TSMPjP TMP's. 图21示出了根据本实例所获得的记录脉冲串。 FIG 21 shows a recording pulse train according to the present example is obtained.

[0203] 如图21所示,第一多脉冲区31中的多脉冲占空比MPD在每个记录调制代码长度具有相等的值O. 5。 As shown in [0203] 21, a first multi-pulse duty ratio of the multi-pulse region 31 MPD O. 5 have equal values ​​in each of the recording modulation code size. 此外,在同一个记录调制码中,前端间隙的宽度FSP和后端间隙的宽度FSP相等。 Further, in the same recording modulation code, and it is equal to the width FSP of the backend space width FSP of the front gap.

[0204] 这样,根据本实施例,在每个记录调制代码长度,记录标记的中心周围的照射热能和冷却时间相等,在整个记录调制码中前沿和后沿上的热能不失去其平衡。 [0204] Thus, according to this embodiment, the length of each of the recording modulation codes, the recording mark is equal to the irradiation energy around the center of the cooling time, the entire thermal recording modulation codes on leading and trailing edges not lose its balance. 因此,对于任何长度的记录调制码,能够稳定地形成从前沿到后沿具有相等宽度的记录标记。 Thus, the recording modulation code of any length can be stably formed from the leading edge to the rear edge of a recording mark equal width.

[0205] 在标记记录速度相对低,具有低灵敏性的记录材料,并且对于多脉冲区的光照射部分需要特定冷却时间的光盘的情况下,使用图21的记录脉冲串记录数据,以便可以从前沿到后沿均匀地控制形成的记录标记的宽度。 [0205] In the mark recording speed is relatively low, a low sensitivity of the recording material, and requires the optical disc certain cooling time, the recording pulse train recording data of FIG. 21 with respect to the light irradiation portion of the multi pulse zone, so as to be from uniformly controlled formed along the leading edge of the recording mark width. 因此,在不使再现信号具有图18所示的双峰值波形的情况下,能够以在再现信号的中心周围的波形幅度较小地减小来进行记录。 Thus, without having to make a reproduction signal shown in Figure 18 double peak waveform can be reduced to a small waveform amplitude around the center of the reproduction signal to be recorded.

[0206] 下面描述本实施例的实例2。 [0206] Examples of embodiments according to the present embodiment 2 is described below. 在实例2中,影响记录标记的中心周围的标记宽度的范围是第一多脉冲区31,用于控制多脉冲串的定时的指标是多脉冲幅度平均值。 In Example 2, the influence range of the recording mark in the mark width around the central region 31 is a first multi-pulse, multi-pulse train for controlling the timing indicator is a multi-pulse amplitude average value.

[0207] 如图20所示,在偶数编号的ηΤ的情况下,相对于偶数编号的参考定时TRE计算多脉冲19的上升定时TSMP,偶数编号的参考定时TRE从记录调制码35的上升定时延迟2Τ。 [0207] As shown, in the case of the even-numbered ηΤ, relative to a reference timing of the even-numbered 20 TRE 19 calculates the rise timing of the multi-pulse TSMP, even numbered reference timing TRE from rising timing of the recording modulation code delay 35 2Τ. 在奇数编号的ηΤ的情况下,相对于奇数编号的参考定时TRO计算TSMP,奇数编号的参考定时TRO从记录调制码35的上升定时延迟3Τ。 In the case of odd-numbered ηΤ respect to odd-numbered reference timing TRO TSMP is calculated, the odd-numbered reference timing TRO from the rising timing of the recording modulation code 35 delay 3Τ.

[0208] 参考图20,由下面的运算(45)获得前端间隙的宽度FSP和后端间隙的宽度LSP。 [0208] Referring to FIG 20, is obtained by the following operation (45) the width FSP of the front end and the rear end of the gap width of the gap LSP.

[0209] FSP = 2T-TEFP+TSMP (偶数编号的ηΤ) [0209] FSP = 2T-TEFP + TSMP (ηΤ even-numbered)

[0210] FSP = 3T-TEFP+TSMP (奇数编号的ηΤ) [0210] FSP = 3T-TEFP + TSMP (odd-numbered ηΤ)

[0211] LSP = 2T-TMP-TSMP . . . (45) [0211] LSP = 2T-TMP-TSMP... (45)

[0212] 另外,当如上所述设定FSP = LSP,以便保持记录标记宽度的均匀宽度时,根据运算(45),通过下面的运算(46)获得多脉冲串19的上升定时TSMP。 [0212] Further, as described above when the set FSP = LSP, so as to maintain a uniform width of the recording mark width, according to the operation (45), multi-pulse train is obtained rising timing TSMP 19 by the following operation (46).

[0213] TSMP = (TEFP-TMP) /2 (偶数编号的ηΤ) [0213] TSMP = (TEFP-TMP) / 2 (ηΤ even-numbered)

[0214] TSMP = (TEFP-TMP-1T) /2 (奇数编号的ηΤ) [0214] TSMP = (TEFP-TMP-1T) / 2 (odd-numbered ηΤ)

[0215] . . . (46) [0215]... (46)

[0216] 另一方面,作为控制目标的多脉冲幅度平均值MPM是通过将第一脉冲区31的幅度整数除以第一多脉冲区31的时间宽度获得的。 [0216] On the other hand, as a multi-pulse amplitude average value MPM control target is the amplitude of the integer by a first pulse of the first region 31 divided by the time width multi-pulse area 31 obtained. 因此,由图20下面的运算(47)计算多脉冲幅度平均值ΜΡΜ,其中INT(X)是用于计算值X的整数的函数。 Thus, the multi-pulse amplitude average value ΜΡΜ calculated by the following calculation map 20 (47), wherein the INT (X) is a function for calculating an integer value of X.

[0217] MPM = TMP · INT{(nT_4T)/2}/(nT-2T-TEFP-FSP_LSP) . · . (47) [0217] MPM = TMP · INT {(nT_4T) / 2} / (nT-2T-TEFP-FSP_LSP). ·. (47)

[0218] 当把运算表达式(46)代入运算表达式(47)并计算多脉冲宽度TMP时,获得下面的运算表达式(48)。 When [0218] When the operation expression (46) is substituted into the operational expressions (47) and calculates a multi-pulse width TMP, to obtain the following operation expression (48).

[0219] TMP = MPM · (ηΤ-6)/[ΙΝΤ{(ηΤ-4)/2)}-ΜΡΜ](偶数编号的ηΤ) [0219] TMP = MPM · (ηΤ-6) / [ΙΝΤ {(ηΤ-4) / 2)} - ΜΡΜ] (ηΤ even-numbered)

[0220] TMP = MPM · (nT_7) / [ΙΝΤ {(ηΤ_4) /2)} -ΜΡΜ](奇数编号的ηΤ) [0220] TMP = MPM · (nT_7) / [ΙΝΤ {(ηΤ_4) / 2)} -ΜΡΜ] (ηΤ odd-numbered)

[0221] . . . (48) [0221]... (48)

[0222] 在本实施例中,将第一脉冲18的下降定时TEFP设定为常数值,而与如上所述的前面的间隙的代码长度和记录标记的代码长度无关。 [0222] In the present embodiment, the first pulse falling timing TEFP 18 is set to a constant value, regardless of the code length and the code length of the previous recording mark as described above gap. 在本实例中,将该值设定得较低,以使再现信号的前沿上的波形的尖头信号较小。 In the present example, the value is set low, so that the smaller the tip leading edge of the signal reproduction waveform signal.

[0223] TEFP = I. 5T [0223] TEFP = I. 5T

[0224] 另外,对于需要适当地保持记录标记中心周围的宽度29的多脉冲幅度平均值MPM,选择在再现信号的中心周围的波形幅度中造成更小减小的值。 [0224] In addition, the need to properly maintain a multi-pulse amplitude average value MPM around the center of the width 29 of the recording mark, resulting in selecting a smaller value of the waveform amplitude decreases around the center of the reproduction signal. 根据对再现信号的波形的观察结果,在本实例中用MPM = O. 5表示适当的值。 The observation of the waveform of the reproduction signal, in the present example by MPM = O. 5 represents an appropriate value.

[0225] 将TEFP和MPD的值代入运算表达式(45)至(48),以计算每个记录调制代码中的FSP, LSP, TSMPjP TMP的定时值。 [0225] The values ​​of TEFP and MPD are substituted into the operational expressions (45) to (48), to calculate the timing values ​​of each of the recording modulation code FSP, LSP, TSMPjP TMP's. 图22示出了根据本实例所获得的记录脉冲串的波形。 FIG 22 shows a waveform of the recording pulse train according to the present example is obtained.

[0226] 如图22所示,第一多脉冲区31中的多脉冲幅度平均值MPM都等于O. 5,而与记录调制码无关。 [0226] 22, a multi-pulse amplitude average value MPM in the first multi-pulse area 31 are all equal to O. 5, irrespective of the recording modulation code. 此外,在同一个记录调制码中,前端间隙的宽度FSP和后端间隙的宽度FSP也相等。 Further, in the same recording modulation code, the width FSP and the width FSP of the backend space are also equal tip clearance. [0227] 这样,根据本实例,在每个记录调制码中,记录标记的中心周围的平均照射能量相等,在整个记录调制码上,前沿,后沿,和标记中心周围的部分上的热能不失去其平衡。 [0227] Thus, according to this example, in each of the recording modulation code, recording the average irradiation energy around the center of the mark are equal, in the entire recording modulation code, the leading edge, trailing edge, and a portion of the heat energy around mark center not loses its balance. 因此,对于记录调制码,能够稳定地形成从前沿到后沿具有相等宽度的记录标记。 Thus, the recording modulation code, can be stably formed from the leading edge to the rear edge of a recording mark equal width.

[0228] 在标记记录速度相对低,记录材料具有低灵敏性,并且在多脉冲区中的平均光照射能量对形成记录标记很重要的光盘上,利用图22的记录脉冲串形成从前沿到后沿具有均匀宽度的记录标记。 [0228] In the mark recording speed is relatively low, a recording material having low sensitivity, and the average light irradiation energy in the multi-pulse area is important to form a recording mark optical disk, a recording pulse train using FIG 22 is formed from the leading edge to the rear along a recording mark having a uniform width. 因此,在不使再现信号具有图18所示的双峰值波形的情况下,能够使再现信号的中心周围的波形幅度较小地减小来进行记录。 Thus, without having to make a reproduction signal shown in FIG. 18 of the double peak waveform, the amplitude of the reproduction waveform can be made around the center signal decreases to be smaller for recording.

[0229] 下面描述实例3。 [0229] Example 3 will be described below. 在实例3中,影响记录标记的中心周围的标记宽度的范围是第二多脉冲区32,用于控制多脉冲串的定时的指标是多脉冲幅度平均值。 In Example 3, the influence range of the recording mark in the mark width around the central region 32 is the second multi-pulse, multi-pulse train for controlling the timing indicator is a multi-pulse amplitude average value.

[0230] 如图20所示,如实例2,用下面图20的运算(49)来计算前端间隙的宽度FSP和后端间隙的宽度LSP。 , As described in Example 2, with the following operational FIG [0230] 20 shown in Figure 20 (49) calculates the width FSP of the front end and the rear end of the gap width of the gap LSP.

[0231] FSP = 2T-TEFP+TSMP (偶数编号的ηΤ) [0231] FSP = 2T-TEFP + TSMP (ηΤ even-numbered)

[0232] FSP = 3T-TEFP+TSMP (奇数编号的ηΤ) [0232] FSP = 3T-TEFP + TSMP (odd-numbered ηΤ)

[0233] LSP = 2T-TMP-TSMP . · . (49) [0233] LSP = 2T-TMP-TSMP. ·. (49)

[0234] 另外,当如上所述设定FSP = LSP,以便保持记录标记宽度的均匀宽度时,根据运算(49),通过下面的运算(50)获得多脉冲串的上升定时TSMP。 [0234] Further, as described above when the set FSP = LSP, so as to maintain a uniform width of the recording mark width, operation (49), obtained by the following operation (50) in accordance with the multi-pulse train rise timing TSMP.

[0235] TSMP = (TEFP-TMP) /2 (偶数编号的ηΤ) [0235] TSMP = (TEFP-TMP) / 2 (ηΤ even-numbered)

[0236] TSMP = (TEFP-TMP-1T) /2 (奇数编号的ηΤ) [0236] TSMP = (TEFP-TMP-1T) / 2 (odd-numbered ηΤ)

[0237] . . . (50) [0237]... (50)

[0238] 另一方面,作为控制目标的多脉冲幅度平均值MPM是通过将第二多脉冲区32的幅度整数除以第二多脉冲区32的时间宽度获得的。 [0238] On the other hand, as a multi-pulse amplitude average value MPM is a control target by the second multi-pulse amplitude integers region 32 divided by the time width of the second region 32 of the multi-pulse obtained. 因此,由下面的运算(51)计算多脉冲幅度平均值,其中INT(X)是用于计算值X的整数的函数。 Therefore, calculated from the following calculation (51) of the multi-pulse amplitude average value, wherein the INT (X) is a function for calculating an integer value of X.

[0239] MPM = TMP · INT{(nT_4T)/2}/(nT-2T_TEFP)... (51) [0239] MPM = TMP · INT {(nT_4T) / 2} / (nT-2T_TEFP) ... (51)

[0240] 当用表达式(51)计算多脉冲宽度TMP时,获得下面的运算表达式(52)。 [0240] When the multi-pulse width TMP is calculated by the expression (51), to obtain the following operation expression (52).

[0241 ] TMP = MPM · (nT-2T_TEFP)/INT{(nT_4)/2)} [0241] TMP = MPM · (nT-2T_TEFP) / INT {(nT_4) / 2)}

[0242] . . . (52) [0242]... (52)

[0243] 在本实例中,将第一脉冲18的下降定时TEFP设定为常数值,而与如上所述的前面的间隙的代码长度和记录标记的代码长度无关。 [0243] In the present example, the fall timing TEFP of the first pulse 18 is set to a constant value, regardless of the code length and the code length of the previous recording mark as described above gap. 在本实例中,将该值设定得较低,以使再现信号的前沿上的波形的尖头信号较小。 In the present example, the value is set low, so that the smaller the tip leading edge of the signal reproduction waveform signal.

[0244] TEFP = I. 5T [0244] TEFP = I. 5T

[0245] 另外,对于需要适当地保持记录标记中心周围的宽度29的多脉冲幅度平均值MPM,选择使再现信号的中心周围的波形幅度的减小更小的值。 [0245] In addition, the need to properly maintain a multi-pulse amplitude average value MPM around the center of the width of the recording mark 29 selects a smaller value to make a reproduction waveform amplitude around the reduced center signal. 根据对再现信号的波形的观察结果,在本实例中用MPM = O. 5表示适当的值。 The observation of the waveform of the reproduction signal, in the present example by MPM = O. 5 represents an appropriate value.

[0246] 将TEFP和MPD的值代入运算表达式(49)至(52),以计算每个记录调制码中的FSP, LSP, TSMPjP TMP的定时值。 [0246] The values ​​of TEFP and MPD are substituted into the operational expressions (49) to (52), to calculate the timing values ​​for each of the recording modulation code FSP, LSP, TSMPjP TMP's. 图23示出了根据本实例所获得的记录脉冲串的波形。 FIG 23 shows a waveform of the recording pulse train according to the present example is obtained.

[0247] 如图23所示,第二多脉冲区32中的多脉冲幅度平均值MPM都等于O. 5,而与记录调制码无关。 [0247] 23, the second multi-pulse area 32 are multi-pulse amplitude average value MPM is equal to O. 5, irrespective of the recording modulation code. 此外,在同一个记录调制码中,前端间隙的宽度FSP和后端间隙的宽度FSP也相等。 Further, in the same recording modulation code, the width FSP and the width FSP of the backend space are also equal tip clearance.

[0248] 这样,根据本实例,在每个记录调制码中,记录标记的中心周围的平均照射能量相等,在整个记录调制码上,前沿,后沿,和标记中心周围的部分上的热能不失去其平衡。 [0248] Thus, according to this example, in each of the recording modulation code, recording the average irradiation energy around the center of the mark are equal, in the entire recording modulation code, the leading edge, trailing edge, and a portion of the heat energy around mark center not loses its balance. 因此,能够稳定地形成从前沿到后沿具有相等宽度的记录标记。 Accordingly, it is possible to stably formed from the leading edge to the rear edge of a recording mark equal width.

[0249] 在标记记录速度相对该,记录材料具有高灵敏性,并且在多脉冲区中的平均光照射能量对形成记录标记很重要的光盘上,能够利用图23的记录脉冲串形成从前沿到后沿具有均匀宽度的记录标记。 [0249] In the mark recording speed relative to the recording material having high sensitivity, and average light irradiation energy in the multi-pulse area is important to the formation of an optical disc recording mark, the recording pulse train can be utilized in FIG 23 is formed from the leading edge to the trailing edge of the recording mark having a uniform width. 因此,在不使再现信号具有图18所示的双峰值波形的情况下,能够使再现信号的中心周围的波形幅度较小地减小来进行记录。 Thus, without having to make a reproduction signal shown in FIG. 18 of the double peak waveform, the amplitude of the reproduction waveform can be made around the center signal decreases to be smaller for recording.

[0250] 在本实施例中,针对每个记录调制码计算和设定要被控制的记录脉冲串的定时值(FSP, LSP, TSMP,和TMP)。 [0250] In the present embodiment, the timing values ​​(FSP, LSP, TSMP, and TMP) for recording the recording pulse train of each modulation code calculated and set to be controlled. 但是,为了缩短记录设备的设定时间,以减小记录设备的电路规模,或简化该电路,可以针对记录调制码长度的偶数编号的ηΤ和奇数编号的ηΤ设定两种定时值。 However, in order to shorten the set time of the recording apparatus, the recording apparatus in order to reduce the circuit scale or simplify the circuit, two kinds of timing values ​​may be set for ηΤ ηΤ odd-numbered and even-numbered recording modulation code length. 例如,在图21的记录脉冲串中,针对每个记录调制码进行操作,以计算每个定时值,针对偶数编号的ηΤ和奇数编号的ηΤ得到两种算法结果。 For example, in the recording pulse train of FIG. 21, a recording modulation codes for each operation to calculate each timing value, to give two results for even ηΤ ηΤ algorithms and odd-numbered. 就是说,定时值表示如下。 That is, the timer value is expressed as follows.

[0251] 偶数编号的ηΤ: [0252] FSP = LSP = O. 75Τ ηΤ [0251] even numbered: [0252] FSP = LSP = O. 75Τ

[0253] TMP = I. OT [0253] TMP = I. OT

[0254] TSMP = O. 25Τ [0254] TSMP = O. 25Τ

[0255] 奇数编号的ηΤ: [0255] odd-numbered ηΤ:

[0256] FSP = LSP = I. 25Τ [0256] FSP = LSP = I. 25Τ

[0257] TMP = I. OT [0257] TMP = I. OT

[0258] TSMP = -O. 25Τ [0258] TSMP = -O. 25Τ

[0259] 另外,基于同样原因,可以将每个记录调制码划分成按照代码长度分类的代码长度组,并且可以在代码长度组中以相等的值设定记录脉冲的定时值(FSP,LSP, TSMP, TMP)。 [0259] Further, for the same reasons, each of the recording modulation codes may be divided into groups in accordance with the code length of the code length classification, and may set time value of the recording pulse (FSP, LSP values ​​equal to the length of the code group, TSMP, TMP).

[0260] 作为可选的方式,为了减小电路规模等,可以将记录脉冲的定时值(FSP,LSP,TSMP, TMP)全部设定为相等的值,而与记录调制码的长度无关。 [0260] As an alternative embodiment, in order to reduce the circuit scale and the like, may be the recording pulse timing values ​​(FSP, LSP, TSMP, TMP) are all set to the same value, irrespective of the length of the recording modulation code.

[0261] 同时,在本实施例的实例I至3中,根据对再现信号波形的观察结果来设定多脉冲占空比的目标值或多脉冲幅度平均值,并使用该值来确定所有记录脉冲串的定时值。 [0261] Meanwhile, in the present example of embodiment I to 3, of a reproduction signal waveform observation to set all the target records or the multi-pulse amplitude average value of the pulse duty ratio, and use this value is determined according to pulse timing value of a string. 然而,为了更准确地控制记录标记的宽度,可以应用下列步骤:将记录调制码划分成具体的代码组,为每个代码组设定多脉冲占空比的目标值或多脉冲幅度平均值,和针对每个代码组使用不同的目标值来确定定时值。 However, in order to more accurately control the width of the recording mark can be applied the following steps: the recording modulation code is divided into specific code groups, a target value or the pulse amplitude average value is set multi-pulse duty ratio for each code group, and codes for each group with a different timing values ​​to determine the target values. 此外,为了更精确地控制记录标记的宽度,可以将记录调制码划分成偶数编号的ηΤ和奇数编号的ηΤ两类,以设定指标的目标值,或者是为每个记录调制码的长度设定目标值。 Further, in order to more precisely control the width of the recording mark, the recording modulation code is divided into two ηΤ ηΤ odd-numbered and even-numbered indexes to set a target value, or set for each recording modulation code length set target value.

[0262] 参考图24,下面描述评估再现信号以决定多脉冲占空比和多脉冲幅度平均值是否适合于作为记录脉冲串中的定时值的指标的方法。 [0262] Referring to Figure 24, the reproduced signal evaluation is described below to determine a multi-pulse duty and a multi-pulse amplitude average value is appropriate to the index value as the timing of the recording pulse train method.

[0263] 当多脉冲占空比和多脉冲幅度平均值不适合时,用于照射记录标记的中心周围部分的能量变得不足,因此,标记中心的宽度减小,在标记中心的周围形成具有更小宽度的双峰值标记5。 [0263] When the multi-pulse duty and a multi-pulse amplitude average value are not suitable for the irradiation energy around the center of the recording mark portion becomes insufficient, thus reducing the width of the center mark formed around the center of the mark having bimodal smaller width numeral 5. 当再现双峰值标记5时,在中心周围的波形幅度值中减小了再现信号7,导致具有双峰值形状的变形波形。 When reproducing bimodal numeral 5, a reproduction signal 7 is reduced in waveform amplitude value around the center, resulting in deformation of a waveform having a double peak shape.

[0264] 通常将用于把再现信号7转换成数字数据的二进制限制(slice)电平57设置成大约是再现信号7的波形的最大幅度的一半。 [0264] generally used for converting the reproduction signal 7 into digital data binary restrictions (Slice) level 57 is set to about half the maximum amplitude waveform of the reproduction signal 7. 因此,在适合的限制电平的情况下,获取二进制数字信号59。 Thus, where appropriate slice level, acquiring a binary digital signal 59. [0265] 在增加限制电平并设定二进制限制电平58时,由二进制限制电平58分割再现信号7的中心周围的幅度减小的部分,并产生包括两个脉冲的脉冲串的二进制数字信号60。 [0265] In increasing the slice level set 58 and a binary slice level, a slice level 58 dividing the binary reproduction signal amplitude around the center of the reduced portion 7, and generates a binary digital pulse train comprising pulses of two signal 60. 由于低电平61在通过二进制数字信号60的半途出现,再现不能被进行到正确的记录调制码。 Because of the low level 61 occurs halfway through binary digital signal 60, reproduction can not be performed to the correct recording modulation code.

[0266] 因此,首先设定多脉冲区中的多脉冲占空比和多脉冲幅度平均值,并根据上面的方法,利用设定值来确定记录脉冲串的定时值。 [0266] Thus, the multi-pulse duty ratio is first set in the multi-pulse area and a multi-pulse amplitude average value of, and according to the above method, to determine the timing values ​​of the recording pulse train using a set value. 利用确定的记录脉冲串在光盘上形成记录标记。 Using the determined recording pulse train forming a recording mark on the optical disc. 接下来,利用比普通限制电平高的二进制限制电平对从形成的记录标记获得的再现信号进行二进制化。 Next, the slice level higher than the normal slice level binary signal to reproduce the recording mark is formed from the obtained binarized. 决定获得的二进制信号是否包括低电平并形成两个脉冲。 It determines whether the obtained binary signal comprising a low level and forms two pulses.

[0267] 在二进制信号包括两个脉冲时,可以理解为记录标记中心的宽度减小。 [0267] In the binary signal comprises two pulses, it is understood to reduce the width of the recording mark as the center. 就是说,发现被设定为多脉冲占空比和多脉冲幅度平均值的目标值不合适。 That is, as the target value is found to a multi-pulse duty and a multi-pulse amplitude average value is inappropriate. [0268] 这样,根据本实施例,将多脉冲串的周期设定为IT或更大,并设定多脉冲串的上升定时TSMP,多脉冲串的宽度TMP,多脉冲区中的前端间隙的宽度FSP,和后端间隙的宽度LSP,以便将多脉冲占空比和多脉冲幅度平均值设定在预定的目标值。 [0268] Thus, according to this embodiment cycle embodiment, the multi-pulse train is set to be greater or IT, and the multi-pulse train to set the rising timing TSMP, a front gap width of the TMP of the multi-pulse train, the multi-pulse region the width of the FSP, LSP, and the rear end of the gap width, so that the multi-pulse duty and a multi-pulse amplitude average value is set at a predetermined target value. 因此,即使以高传送率和高密度进行记录,也可以获得以适合的宽度形成记录标记的记录脉冲串。 Thus, even when recording at a high transfer rate and high density can be obtained to suit the width of the recording pulse train forming the recording mark. 由所形成的记录标记获得的再现信号的波形在中心周围的幅度具有较小的减小,信号的上升沿和下降沿较少发生变形。 Waveform of the reproduction signal from the recording mark is formed has a smaller reduction is obtained in the amplitude around the center, rising and falling edges of the signal is less deformed. 因此,即使在记录长记录调制码时,也能够减少抖动的影响和抑制再现比特误差。 Accordingly, even when a long recording modulation code is recorded, it is possible to reduce the influence of jitter and suppress a reproduction bit error.

[0269] 此外,根据本发明,通过检测再现信号的波形中心周围减小的幅度,能够记录标记的中心周围减小的宽度。 [0269] Further, according to the present invention, by detecting reduced amplitude of the reproduced signal around the center of the waveform, the width of the recording mark can be reduced around the center. 因此,能够决定多脉冲区中的多脉冲占空比和多脉冲幅度平均值是否是适合的控制目标。 Thus, multi-pulse duty cycle can be determined and the multi-pulse amplitude average value in the multi-pulse area is suitable whether the control target.

[0270] 工业实用件 [0270] Industrial Utility pieces

[0271] 根据本发明,即使在以高传送率记录数据时,也能在诸如光盘之类的数据存储介质上形成具有正确形状的记录标记。 [0271] According to the present invention, even when recording data at a high transfer rate, a recording mark can be formed with the correct shape on the data storage medium such as an optical disk or the like. 因此,本发明的方法适合用于以高密度和高传送率进行记录的光盘,和为这种光盘提供的光盘设备。 Thus, the method of the present invention is suitable for an optical disc with high density and high transfer rate recording, and to provide an optical disc apparatus for this optical disc.

Claims (1)

1. 一种数据记录设备,包括: 信号处理部分,调制要记录的数据并产生多个记录调制码; 记录脉冲串产生部分,根据记录调制码来产生用于驱动光源的多个记录脉冲串,以便在光盘上形成具有与相应的记录调制码相对应的长度的多个记录标记, 其中,该多个记录标记中的至少两个标记是由根据记录脉冲串发射的光束形成的,该记录脉冲串包括:设置在前端并形成记录标记的前沿的第一脉冲;设置在后端并形成记录标记的后沿的最后脉冲;以及设置在第一脉冲和最后脉冲之间并形成记录标记的中部的多脉冲串, 该多脉冲串具有2T的脉冲周期,其中T代表记录调制码的参考周期, 该多个记录标记具有由T或其整数倍数表示的不同长度, 随着记录标记的长度增加2T,每个记录脉冲串中脉冲的数量增加1,以及第七短的记录标记和第八短的记录标记分别由四 1. A data recording apparatus, comprising: a signal processing section modulating data to be recorded and generating a plurality of recording modulation codes; recording pulse train generating section generating a plurality of recording pulse trains for driving the light source based on the recording modulation code, so as to form a plurality of recording marks corresponding to the recording modulation code corresponding to the length, wherein the plurality of recording the at least two indicia marks are formed by a light beam emitted according to the recording pulse train on the optical disc, the recording pulse string comprising: a leading edge disposed at a front end and a first pulse forming a recording mark; disposed at the rear end and the last pulse forming a recording mark along; and disposed between the first pulse and the last pulse and forms the center of the recording mark multi-pulse train, the multi-pulse train having a pulse period of 2T, where T represents a reference period of the recording modulation code, the plurality of recording marks have different lengths represented by T or integral multiples thereof, increases as the length of the 2T recording mark, each record in the number of burst pulses is increased by one, the seventh and eighth short recording mark and a short mark is recorded respectively by the four 个脉冲构成。 Pulses constitute.
CN 200910009975 2002-10-10 2003-10-09 The optical data recording method CN101477809B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2002-297295 2002-10-10
JP2002297295 2002-10-10
JP2002312432 2002-10-28
JP2002-312432 2002-10-28
CN200380100329.52003.10.09 2003-10-09
CN200380100329.5 2003-10-09

Publications (2)

Publication Number Publication Date
CN101477809A CN101477809A (en) 2009-07-08
CN101477809B true CN101477809B (en) 2013-01-16

Family

ID=35346998

Family Applications (5)

Application Number Title Priority Date Filing Date
CN 200910009975 CN101477809B (en) 2002-10-10 2003-10-09 The optical data recording method
CN 200910009974 CN101477808B (en) 2002-10-10 2003-10-09 The optical data recording method
CN 200380100329 CN100474404C (en) 2002-10-10 2003-10-09 Optical data recording method
CN 200910009972 CN101477806B (en) 2002-10-10 2003-10-09 Optical data recording method
CN 200910009973 CN101477807B (en) 2002-10-10 2003-10-09 Optical data recording method

Family Applications After (4)

Application Number Title Priority Date Filing Date
CN 200910009974 CN101477808B (en) 2002-10-10 2003-10-09 The optical data recording method
CN 200380100329 CN100474404C (en) 2002-10-10 2003-10-09 Optical data recording method
CN 200910009972 CN101477806B (en) 2002-10-10 2003-10-09 Optical data recording method
CN 200910009973 CN101477807B (en) 2002-10-10 2003-10-09 Optical data recording method

Country Status (1)

Country Link
CN (5) CN101477809B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5732062A (en) 1995-10-16 1998-03-24 Ricoh Company, Ltd. Information recording apparatus, method and computer program product
CN1252151A (en) 1997-12-08 2000-05-03 皇家菲利浦电子有限公司 Method and device for writing optical record carriers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5732062A (en) 1995-10-16 1998-03-24 Ricoh Company, Ltd. Information recording apparatus, method and computer program product
CN1252151A (en) 1997-12-08 2000-05-03 皇家菲利浦电子有限公司 Method and device for writing optical record carriers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开平9-7176A 1997.01.10

Also Published As

Publication number Publication date
CN101477809A (en) 2009-07-08
CN101477807A (en) 2009-07-08
CN101477808B (en) 2011-05-18
CN101477806A (en) 2009-07-08
CN101477808A (en) 2009-07-08
CN100474404C (en) 2009-04-01
CN101477806B (en) 2011-05-18
CN1692410A (en) 2005-11-02
CN101477807B (en) 2011-06-01

Similar Documents

Publication Publication Date Title
US6349081B1 (en) Recording medium, recording apparatus and recording method
US5648952A (en) Phase-change optical disc recording method and apparatus, and information recording apparatus and recording pre-compensation method
JP3124720B2 (en) Information recording and reproducing method, information recording and reproducing apparatus and information recording medium
US6975579B2 (en) Optical information recording medium and optical information recording and reproducing apparatus
KR100358507B1 (en) The optical recording method and optical recording device,
KR100337945B1 (en) Information recording method, information recording media and information recording device
KR19990007785A (en) Optical information medium recording method and apparatus
US7907490B2 (en) Information recording method and apparatus with suppressed mark edge jitters
CN1299261C (en) Information recording apparatus and information recording method
KR100606255B1 (en) Information recording apparatus
US6801240B2 (en) Information recording with effective pulse control scheme
CN1265363C (en) Information recording method and recording device
US6526013B1 (en) Optical information recording medium, optical information recording apparatus, and method of recording test signal on the same
EP1282117B1 (en) Adaptive writing method and circuit for a high-density optical recording apparatus
US5513165A (en) Method for controlling the farm of a magnetic domain of a magneto-optical disk using pre-write testing
US6842412B2 (en) Information recording method and optical disc apparatus
US6108287A (en) Method and apparatus for writing and reading optical recording medium
US20060203678A1 (en) Method and device for recording optical data
US7088656B2 (en) Method for optically recording information and device for optically recording information by the same
US6222814B1 (en) Recording/reproducing apparatus and method for phase-change optical disc
US5216657A (en) Method and apparatus for timing variable optical information recording
KR20010085781A (en) Optical data recording method and data recording medium
JPH09134525A (en) Information-recording method
CN100377222C (en) Information recording method and information recording device
US6510116B1 (en) Optical information recording/reproducing method and optical information recording/reproducing apparatus

Legal Events

Date Code Title Description
C06 Publication
C10 Request of examination as to substance
C14 Granted