公开(公告)号：US20020191509A1

公开(公告)日：2002-12-19

申请号：US10218409

申请日：2002-08-15

申请人： Matsushita Electric Industrial Co., Ltd

发明人： Yukio Iijima ,  Nobuaki Minakuchi ,  Hidemi Takahashi ,  Yasushi Ueda ,  Makoto Okazaki

IPC分类号： G11B007/005

CPC分类号： G11B19/04 ,  G11B7/0037 ,  G11B7/0053 ,  G11B7/00745 ,  G11B19/122 ,  G11B20/10 ,  G11B20/10009 ,  G11B20/10222 ,  G11B20/1403 ,  G11B20/1426 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B2020/10888 ,  G11B2020/1269 ,  G11B2020/1274 ,  G11B2220/20 ,  G11B2220/2537

摘要： An optical disc recording and reproducing apparatus for recording and reproducing data in and from an optical disc by the use of the optical disc as a recording medium, comprises analog processing means including a binarization unit for subjecting a signal read from the optical disc to binarization and a servo unit for controlling recording and reproducing a signal in and from the optical disc; synchronous clock generating means for generating a synchronous clock signal which is synchronized with the signal read from the optical disc; address detecting means for detecting address information indicating a physical position on the optical disc based on the signal read from the optical disc, and outputting a signal indicating the address information and a signal indicating that the address has been detected when the address information has been detected; a sector counter for holding a sector count value of a sector as a recording unit on the optical disc, and updating the sector count value according to the synchronous clock signal and the signal output from the address detecting means; and gate signal generation switching means for generating gate a signal which controls the analog processing means, based on one of the sector count value held in the sector counter and information obtained from the analog processing means, according to the signal indicating that the address has been detected, which is output from the address detecting means.

摘要翻译： 一种用于通过使用光盘作为记录介质来记录和从光盘再现数据的光盘记录和再现装置，包括模拟处理装置，包括用于对从光盘读取的信号进行二值化的二值化单元，以及 用于控制在光盘中记录和再现信号的伺服单元; 同步时钟发生装置，用于产生与从光盘读取的信号同步的同步时钟信号; 地址检测装置，用于基于从光盘读取的信号检测表示光盘上的物理位置的地址信息，并且当检测到地址信息时，输出指示地址信息的信号和指示已经检测到地址的信号 ; 用于将光盘的扇区计数值保持为记录单位的扇区计数器，并根据同步时钟信号和从地址检测装置输出的信号来更新扇区计数值; 以及门信号产生切换装置，用于根据表示地址已经被信号的信号，基于扇区计数器中保存的扇区计数值和从模拟处理装置获得的信息，产生控制模拟处理装置的信号 从地址检测装置输出。

公开(公告)号：US20020181377A1

公开(公告)日：2002-12-05

申请号：US10133820

申请日：2002-04-25

发明人： Masayoshi Nagata ,  Takayoshi Chiba ,  Yasuo Tone ,  Shigeo Yamaguchi ,  Junichi Horigome

IPC分类号： G11B007/005 ,  G11B007/24

CPC分类号： G11B7/007 ,  G11B7/00454 ,  G11B7/0051

摘要： An optical disk apparatus for a phase-change optical disk detects the boundary between a first region and a second region prior to detecting a synchronization mark. The synchronization mark is detected in accordance with the position of the detected boundary between the first region and the second region. User data is read from a data region in accordance with the detected synchronization mark.

摘要翻译： 用于相变光盘的光盘装置在检测到同步标记之前检测第一区域和第二区域之间的边界。 根据检测到的第一区域和第二区域之间的边界的位置来检测同步标记。 根据检测到的同步标记从数据区读取用户数据。

公开(公告)号：US20020172112A1

公开(公告)日：2002-11-21

申请号：US10122329

申请日：2002-04-16

发明人： Norio Shoji ,  Yuji Gendai ,  Kimimasa Senba ,  Nobuyoshi Kobayashi

IPC分类号： G11B007/005

CPC分类号： H03M1/0607 ,  G11B20/10027 ,  G11B20/10037 ,  G11B20/10203 ,  G11B20/10314 ,  H03M1/12

摘要： To provide an asymmetry correcting circuit capable of canceling an asymmetry simultaneously with quantization in an ADC and utilizing the dynamic range of the ADC effectively, and also to provide an information reproducing apparatus using such a correcting circuit. An asymmetry correcting circuit includes a first envelope detection circuit for detecting the envelope of a positive peak of an input signal waveform; a second envelope detection circuit for detecting the envelope of a negative peak of the input signal waveform; an adding circuit for producing a sum voltage of the positive peak voltage and the negative peak voltage; a smoothing circuit for smoothing the sum voltage; a multiplying circuit for multiplying the smoothed sum voltage by a predetermined offset adjustment coefficient; and a quantization reference voltage control circuit for DC-wise shifting, in response to the output signal of the multiplying circuit, the median of the quantization reference voltage of the ADC in conformity with the offset derived from the asymmetry of the input signal, and controlling the upper limit and the lower limit of the quantization reference voltage to the values that correspond to the offset quantity.

摘要翻译： 提供一种能够在ADC中同时消除不对称性并且有效地利用ADC的动态范围的不对称校正电路，并且还提供使用这种校正电路的信息再现装置。 不对称校正电路包括用于检测输入信号波形的正峰值的包络的第一包络检测电路; 第二包络检测电路，用于检测输入信号波形的负峰值的包络; 用于产生正峰值电压和负峰值电压的和电压的加法电路; 平滑电路，用于平滑和电压; 乘法电路，用于将平滑的和电压乘以预定的偏移调整系数; 以及量化参考电压控制电路，用于根据乘法电路的输出信号进行直角移位，ADC的量化参考电压的中值与从输入信号的不对称性导出的偏移一致，并控制 量化参考电压的上限和下限对应于偏移量的值。

公开(公告)号：US20020145959A1

公开(公告)日：2002-10-10

申请号：US09476862

申请日：2000-01-03

发明人： AKIRA TSUKIHASHI

IPC分类号： G11B007/005

CPC分类号： G11B20/10527 ,  G11B7/0045 ,  G11B27/034 ,  G11B2020/10814 ,  G11B2220/218 ,  G11B2220/2545

摘要： To resume data writing onto a disk, a recording start position detection means (19) detects a recording start position, and a synchronous setting means (20) synchronizes recording data with recorded data on a disk so that recording data successive to the recorded data on the disk can be additionally written onto the disk without a break. Data writing onto a disk is suspended until an amount of data equivalent to data writing capacity has been stored in the buffer memory (13). Data writing is resumed upon detection of the fact that an amount of data equivalent to data writing capacity has been stored in the buffer memory (13). With the above, power consumption can be reduced during a period when recording capability of a disk recording device exceeds the data transfer speed.

摘要翻译： 为了恢复对盘的数据写入，记录开始位置检测装置（19）检测记录开始位置，同步设定装置（20）将记录数据与盘上的记录数据同步，使得与记录数据连续的记录数据 磁盘可以额外写入磁盘，而不会中断。 数据写入磁盘被暂停，直到与数据写入能力相当的数据量已被存储在缓冲存储器（13）中。 在检测到与数据写入能力相当的数据量已被存储在缓冲存储器（13）中的事实之后，恢复数据写入。 通过上述，在磁盘记录装置的记录能力超过数据传送速度的期间，能够降低功耗。

公开(公告)号：US20020141317A1

公开(公告)日：2002-10-03

申请号：US10112404

申请日：2002-03-29

申请人： Matsushita Electric Industrial Co., Ltd.

发明人： Junichi Minamino ,  Atsushi Nakamura ,  Shigeru Furumiya ,  Hiromichi Ishibashi ,  Takashi Ishida ,  Toyoji Gushima

IPC分类号： G11B007/005 ,  G11B007/24

CPC分类号： G11B27/3027 ,  G11B7/0053 ,  G11B7/007 ,  G11B7/00745 ,  G11B7/24082 ,  G11B20/00086 ,  G11B20/00405 ,  G11B20/00492 ,  G11B20/10009 ,  G11B20/1217 ,  G11B20/1833 ,  G11B27/19 ,  G11B27/24 ,  G11B2020/1221 ,  G11B2020/1239 ,  G11B2020/1265 ,  G11B2020/1268 ,  G11B2020/1274 ,  G11B2020/1287 ,  G11B2020/1292 ,  G11B2020/1298 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2537 ,  G11B2220/2541

摘要： On an optical disk medium according to the present invention, address information is recorded along a wobbling track groove 2. The track groove 2 is made up of a plurality of unit sections 22, 23. Each of these unit sections 22, 23 has side faces that are displaced periodically in a disk radial direction. This displacement oscillates at a single period in a tracking direction. However, the displacement pattern differs depending on nulleach bit of address information (subdivided information)null allocated to each of the unit sections 22, 23.

摘要翻译： 在根据本发明的光盘介质上，沿着摆动轨道槽2记录地址信息。轨道槽2由多个单元部分22,23组成。这些单元部分22,23中的每一个具有侧面 其周期性地沿盘径向移动。 该位移在跟踪方向上以单个周期振荡。 然而，位移模式根据分配给每个单元部分22,23的“每一位地址信息（细分信息）”而不同。

公开(公告)号：US20020114241A1

公开(公告)日：2002-08-22

申请号：US10133441

申请日：2002-04-29

申请人： Matsushita Electric Industrial Co., Ltd.

发明人： Yoshihiro Tosaki ,  Masaru Odagiri ,  Hiromichi Shimada ,  Shinichi Tanaka

IPC分类号： G11B007/005 ,  G11B007/24

CPC分类号： G11B23/281 ,  G11B7/0037 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/007 ,  G11B19/04 ,  G11B19/12 ,  G11B19/122 ,  G11B19/125 ,  G11B20/00086 ,  G11B20/00094 ,  G11B20/0021 ,  G11B20/00557 ,  G11B20/00586 ,  G11B20/00695 ,  G11B20/00702 ,  G11B20/1217 ,  G11B23/36 ,  G11B2020/1269 ,  G11B2020/1287 ,  G11B2020/1461 ,  G11B2020/1843 ,  H04N5/85 ,  H04N5/913 ,  H04N2005/91364

摘要： A DVD-R 1 has a main information area 2 where data information is recorded in a track having a wobble, and first and second control data areas 3,15 each of which is disposed in an inner space closer to the disk center than the main information area 2. The information structure and physical structure of the first control area 3 are different from those of the second control area 15. In the second control area 15, predetermined physical format information and disk production information, for example, the last address of when data is written in the DVD-R 1, the maximum transfer rate or the like, are recorded. Thus, when the DVD-R 1 is reproduced by a DVD player etc., the physical format information and disk production information etc. recorded in the second control data area 15 are read. Thereby, the disk can be precisely identified without spoiling the physical format information, the disk production information or the like, and further illegal use of the DVD or another optical disk leading up to breach of the copyright can be effectively prevented.

公开(公告)号：US20020105869A1

公开(公告)日：2002-08-08

申请号：US09985154

申请日：2001-11-01

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Cheol-Gyun Oh

IPC分类号： G11B007/005

CPC分类号： G11B27/24 ,  G11B7/00718 ,  G11B19/04 ,  G11B19/28 ,  G11B27/3027 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2562

摘要： The present invention discloses a disk player for recording information on a disk and/or reproducing recorded information thereon. The disk player includes a wobble detection unit for detecting a wobble signal corresponding to a wobbling pattern formed along a track of the disk; and an information processing unit for detecting a pre-pit signal recorded on the disk using the wobble signal output from the wobble detection unit and a clock signal obtained by multiplying the wobble signal a predetermined number of times, and for processing the information recorded on the disk or the information to be recorded thereon according to the detected pre-pit signal. Since the detection of a synchronization signal can be performed more precisely, this disk player can reduce error in the recording and reproduction of data.

摘要翻译： 本发明公开了一种用于在盘上记录信息和/或在其上再现记录信息的盘播放器。 盘播放器包括：摆动检测单元，用于检测与沿盘的轨迹形成的摆动图形对应的摆动信号; 以及信息处理单元，用于使用从摆动检测单元输出的摆动信号检测记录在盘上的预凹陷信号，以及通过将摆动信号乘以预定次数获得的时钟信号，并且用于处理记录在 磁盘或根据检测到的预凹陷信号记录在其上的信息。 由于可以更准确地执行同步信号的检测，所以该盘播放器可以减少数据的记录和再现中的错误。

公开(公告)号：US20020093904A1

公开(公告)日：2002-07-18

申请号：US09880283

申请日：2001-06-13

申请人： LSI LOGIC CORPORATION

发明人： Philip J. Armitage ,  David I. Boddy

IPC分类号： G11B007/005

CPC分类号： G11B20/24 ,  G11B7/08541 ,  G11B2020/10916

摘要： In the context of mirror modulation (56, 90, 104) extraction during track seek or jump modes of an optical disc reading device (12), such as a DVD ROM, a mirror averaged level (i.e. the dc level (52) of the RF envelope (34)) is held so that the mirror modulation (90) is seen as a swing below a set mirror rebias level (86) at an output of a mirror amplifier (72), as shown in FIG. 3. With the holding of the dc level (52) by a ground-referred capacitor (302) during seek operation of the device (12), a first input (nin) to the mirror amplifier varies with the mirror modulation, whereas a second input (pin) to the mirror amplifier (72) does not vary. This phenomenon enables the top level of a RFRP signal (82) to be defined by the mirror rebias level (86) and the mirror component swing (during seek operation) to be optimized and always to occur below the mirror rebias level (86). During on-track operation, the first input (nin) and the second input (pin) are essentially equal and so the RFRP signal (82) sits at the dc level (52). Being able both to define the mirror rebias level (86) and to vary a gain (84) of the mirror amplifier (72) allows a swing, arising from the mirror modulation, in the RFRP signal (82) to be optimally positioned in relation to top and bottom hold circuits (96, 98) used for definition of a slice level (94) for mirror recovery purposes.

摘要翻译： 在诸如DVD ROM的光盘读取装置（12）的轨道寻找或跳跃模式期间，在镜像调制（56,90,104）中提取镜像平均水平（即，直流电平（52）） 保持RF信号（34）），使得镜像调制（90）被视为在镜像放大器（72）的输出端处的设定的镜面光栅电平（86）以下的摆动，如图6所示。 通过在器件（12）的寻道操作期间由接地参考电容器（302）保持直流电平（52），到镜面放大器的第一输入（nin）随着镜面调制而变化，而第二 反射镜放大器（72）的输入（引脚）不变化。 这种现象使得RFRP信号（82）的顶层由镜子光栅级别（86）和镜子部件摆动（在搜索操作期间）被定义为被优化，并且始终发生在镜子光栅级别（86）之下。 在轨道操作期间，第一输入（nin）和第二输入（pin）基本相等，因此RFRP信号（82）处于直流电平（52）。 既能够定义镜面光栅级别（86）并且改变镜放大器（72）的增益（84），则允许在RFRP信号（82）中由镜像调制产生的摆幅被最佳地相对定位 用于定义用于镜像恢复目的的切片级（94）的顶部和底部保持电路（96,98）。

公开(公告)号：US20020071374A1

公开(公告)日：2002-06-13

申请号：US10067923

申请日：2002-02-08

发明人： Harukazu Miyamoto ,  Hirofumi Sukeda ,  Motoyasu Terao ,  Hiroyuki Minemura ,  Tetsuo Andou

IPC分类号： G11B007/005 ,  G11B007/24

CPC分类号： G11B7/24085 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/094 ,  G11B7/26 ,  G11B11/10578 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B2220/20 ,  G11B2220/2525

摘要： An optical reproducing method using an optical recording medium having grooves and lands alternately provided in a radial direction. Information recording areas are formed in both of the grooves and the lands, and interruption areas intervene between portions of said grooves. In an interruption area, first information marks are disposed on a virtual extension of a first boundary between one groove and one adjacent land and second information marks are disposed on a virtual extension of a second boundary between the one groove and an other adjacent land. A trailing end of the first information marks is aligned in the radial direction. The method includes irradiating an optical spot on the optical recording medium detecting a reflected beam from the optical recording medium, and reproducing information to the optical recording medium by using a signal obtained by the reflected beam.

摘要翻译： 一种使用光学记录介质的光学再现方法，该记录介质具有沿径向方向交替设置的凹槽和平台 信息记录区域形成在两个槽和焊盘之间，并且中断区域介于所述槽的部分之间。 在中断区域中，第一信息标记设置在一个沟槽和一个相邻焊盘之间的第一边界的虚拟延伸部上，而第二信息标记设置在一个沟槽和另一个相邻焊盘之间的第二边界的虚拟延伸部分上。 第一信息标记的尾端沿径向对齐。 该方法包括在光学记录介质上照射检测来自光学记录介质的反射光束的光点，并通过使用由反射光束获得的信号将信息再现到光学记录介质。

公开(公告)号：US20020071370A1

公开(公告)日：2002-06-13

申请号：US10067755

申请日：2002-02-08

发明人： Harukazu Miyamoto ,  Hirofumi Sukeda ,  Motoyasu Terao ,  Hiroyuki Minemura ,  Tetsuo Andou

IPC分类号： G11B007/005 ,  G11B007/24

CPC分类号： G11B7/24085 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/094 ,  G11B7/26 ,  G11B11/10578 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B2220/20 ,  G11B2220/2525

摘要： An optical reproduction apparatus for reproducing information from an optical recording medium having an aligned prepit portion straddled on a plurality of tracks in a radial direction. The prepit portion includes first and second prepit portions divided in a track direction with a prepit of the respective first and second prepit portions being arranged on a boundary of the respective tracks. The first prepit portion has an address information prepit and a synchronous information prepit and the second prepit has a synchronous information prepit. A trailing end of an end prepit of the first prepit portion is aligned in the radial direction. The optical reproduction apparatus includes an irradiation source for irradiating a light spot on the optical recording medium, a detector for detecting a reflected light from the optical recording medium, and a reproducer for reproducing information by using a signal from the detector.

摘要翻译： 一种光学再现设备，用于从具有跨越多个轨道的径向排列的预置凹坑部分的光学记录介质再现信息。 预凹坑部分包括在轨道方向上划分的第一和第二预凹坑部分，其中各个第一和第二预凹坑部分的预凹坑布置在各个轨道的边界上。 第一预制凹坑部分具有地址信息预凹坑和同步信息预制凹坑，并且第二预凹坑具有同步信息预凹坑。 第一预凹坑部分的末端预凹坑的后端在径向方向上对齐。 光学再现装置包括用于照射光学记录介质上的光点的照射源，用于检测来自光学记录介质的反射光的检测器和用于通过使用来自检测器的信号再现信息的再现器。