公开(公告)号：US20050195511A1

公开(公告)日：2005-09-08

申请号：US11045352

申请日：2005-01-31

申请人： Tatsushi Sano ,  Mitsuru Okabe ,  Tadaaki Nomoto

发明人： Tatsushi Sano ,  Mitsuru Okabe ,  Tadaaki Nomoto

IPC分类号： G11B20/14 ,  G11B5/09 ,  G11B7/004 ,  G11B7/005 ,  G11B20/10 ,  H04L27/14

CPC分类号： G11B20/10222 ,  G11B7/0053 ,  G11B20/10361 ,  G11B2220/2537

摘要： In a demodulation process of a first modulated signal and a second modulated signal, phase adjustment is automatically performed by generating, in response to demodulation results, an optimum phase value of a second internal reference wave for demodulating the second modulated signal. A phase of a second internal reference wave for demodulating the first modulated signal is also adjusted using the optimum phase value for the automatic adjustment.

摘要翻译： 在第一调制信号和第二调制信号的解调处理中，通过响应于解调结果生成用于解调第二调制信号的第二内部参考波的最佳相位值来自动执行相位调整。 用于解调第一调制信号的第二内部参考波的相位也使用用于自动调整的最佳相位值进行调整。

公开(公告)号：US07333408B2

公开(公告)日：2008-02-19

申请号：US11045352

申请日：2005-01-31

申请人： Tatsushi Sano ,  Mitsuru Okabe ,  Tadaaki Nomoto

发明人： Tatsushi Sano ,  Mitsuru Okabe ,  Tadaaki Nomoto

IPC分类号： G11B20/00

CPC分类号： G11B20/10222 ,  G11B7/0053 ,  G11B20/10361 ,  G11B2220/2537

摘要： In a demodulation process of a first modulated signal and a second modulated signal, phase adjustment is automatically performed by generating, in response to demodulation results, an optimum phase value of a second internal reference wave for demodulating the second modulated signal. A phase of a second internal reference wave for demodulating the first modulated signal is also adjusted using the optimum phase value for the automatic adjustment.

摘要翻译： 在第一调制信号和第二调制信号的解调处理中，通过响应于解调结果生成用于解调第二调制信号的第二内部参考波的最佳相位值来自动执行相位调整。 用于解调第一调制信号的第二内部参考波的相位也使用用于自动调整的最佳相位值进行调整。

公开(公告)号：US6018507A

公开(公告)日：2000-01-25

申请号：US935400

申请日：1997-09-23

申请人： Toru Takeda ,  Akira Shimazu ,  Tamotsu Yamagami ,  Tadaaki Nomoto

发明人： Toru Takeda ,  Akira Shimazu ,  Tamotsu Yamagami ,  Tadaaki Nomoto

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/0055 ,  G11B7/007 ,  G11B7/09 ,  G11B7/095 ,  G11B19/12

CPC分类号： G11B19/12 ,  G11B7/0045 ,  G11B7/00718 ,  G11B7/094 ,  G11B7/00557

摘要： An optical recording method according to the invention is provided such, that when an optical pickup (2) is moved over an optical disk (1), the optical pickup (2) being positioned onto the target track location, record marks are recorded on the optical disk (1) by a light beam irradiated onto the optical disk (1) through the optical pickup (2). An irradiation position of the light beam is offset during recording by a predetermined amount to a track at the recording direction side relative to the target track location, and a record mark is formed on a target track by the offset light beam.

摘要翻译： 根据本发明的光记录方法，当光拾取器（2）在光盘（1）上移动时，光拾取器（2）位于目标轨道位置上，记录标记被记录在 光盘（1）通过光学拾取器（2）照射到光盘（1）上的光束。 在相对于目标轨道位置在记录方向侧的轨道上记录预定量的光束的照射位置偏移，并且通过偏移光束在目标轨迹上形成记录标记。

公开(公告)号：US5991257A

公开(公告)日：1999-11-23

申请号：US979372

申请日：1997-11-26

申请人： Shoei Kobayashi ,  Tadaaki Nomoto ,  Shuji Uehara

发明人： Shoei Kobayashi ,  Tadaaki Nomoto ,  Shuji Uehara

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/007 ,  G11B7/26 ,  G11B11/105 ,  G11B20/12 ,  G11B20/14 ,  G11B21/08 ,  G11B21/10 ,  G11B27/10 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  G11B7/24

CPC分类号： G11B27/3027 ,  G11B20/1258 ,  G11B20/1419 ,  G11B21/085 ,  G11B21/10 ,  G11B27/105 ,  G11B27/24 ,  G11B7/0079 ,  G11B7/24082 ,  G11B7/261 ,  G11B11/10563 ,  G11B11/10595 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2529 ,  G11B2220/2545 ,  G11B2220/2562 ,  G11B2220/2575 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/00745

摘要： A disk to which sectors and clusters of data can be written, wherein each of the sectors includes an arbitrary first number of data frames and each of the clusters includes an arbitrary number of sectors, wherein the disk includes a region for recording the data, wherein the region is segmented into zones, a first set of at least one of the zones is located adjacent to a second set of at least one of the zones, the second set is located closer to an outer circumferential side of the disk than is the first set, each track of the first set is segmented into a second number of data frames, and each track of the second set is segmented into a third number of data frames, where the third number is the sum of the second number and a fourth number smaller than the first number. Other aspects of the invention are a method and apparatus for recording data to or reproducing data from such a disk.

摘要翻译： 可以写入扇区和数据簇的盘，其中每个扇区包括任意的第一数量的数据帧，并且每个簇包括任意数量的扇区，其中盘包括用于记录数据的区域，其中 所述区域被分割成区域，所述区域中的至少一个的第一组位于与所述区域中的至少一个区域的第二组相邻的位置，所述第二组位于比所述第一组更靠近所述圆盘的外圆周侧 将第一组的每个轨道分割成第二数量的数据帧，并且将第二组的每个轨道分割成第三数量的数据帧，其中第三个数字是第二个数字和第四个数字之和 小于第一个数字。 本发明的其它方面是用于向这种盘记录数据或从其再现数据的方法和装置。

公开(公告)号：US6147957A

公开(公告)日：2000-11-14

申请号：US105881

申请日：1998-06-26

申请人： Toru Nagara ,  Akio Terada ,  Masamichi Kondo ,  Tadaaki Nomoto

发明人： Toru Nagara ,  Akio Terada ,  Masamichi Kondo ,  Tadaaki Nomoto

IPC分类号： G11B20/10 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/0055 ,  G11B7/006 ,  G11B7/007 ,  G11B7/125 ,  G11B20/12

CPC分类号： G11B7/126 ,  G11B20/1217 ,  G11B7/006 ,  G11B7/007 ,  G11B2020/1222 ,  G11B2020/1277 ,  G11B2020/1288 ,  G11B2220/2537 ,  G11B7/00454

摘要： The present invention relates to an information recording/reproducing apparatus that radiates a laser beam to an information recording medium for recording and/or reproducing information, comprising: a laser beam generating means for generating a laser beam that records information to or reproduces information from the information recording medium; a timing control means for controlling information recording timing so that a recording area on a track of the information recording medium is followed by another recording area in a partially overlapping manner; and a laser beam intensity control means for controlling an intensity of the laser beam generated by the laser beam generating means so that a first area with information recorded, a second area with information erased, and a third area with information neither recorded nor erased are formed in the recording area in which information is at least recorded in an overlapping manner.

摘要翻译： 本发明涉及一种信息记录/再现装置，其将激光束照射到用于记录和/或再现信息的信息记录介质中，包括：激光束产生装置，用于产生将信息记录到信息记录介质 信息记录介质; 定时控制装置，用于控制信息记录定时，使得信息记录介质的轨道上的记录区域以部分重叠的方式跟随另一个记录区域; 激光束强度控制装置，用于控制由激光束发生装置产生的激光束的强度，以便形成具有记录信息的第一区域，擦除信息的第二区域和不记录或不擦除信息的第三区域 在至少以重叠的方式记录信息的记录区域中。

公开(公告)号：US20060176785A1

公开(公告)日：2006-08-10

申请号：US11390157

申请日：2006-03-28

申请人： Shoei Kobayashi ,  Tadaaki Nomoto

发明人： Shoei Kobayashi ,  Tadaaki Nomoto

IPC分类号： G11B7/00

CPC分类号： H03L7/14 ,  G11B7/0053 ,  G11B20/10 ,  G11B27/24 ,  G11B2220/20 ,  H03L7/18 ,  H04N5/126 ,  H04N5/85 ,  H04N9/8042

摘要： A recording/reproducing apparatus comprising an OP head 11, a wobble circuit 12, a system controller 13, and an address-decoding timing generator 14. The wobble circuit 12 extracts a wobble signal from the signal the OP head 11 has read. A PLL circuit for generating a sync signal from the wobble signal is held while no normal wobble signal is generated. The address-decoding timing generator (Address DEC TG) 14 receives a signal the OP head 11 has reproduced, decodes the address represented by the signal, and supplies the address data to the system controller 13. The generator 14 also generates a timing signal from the sync signal supplied from the wobble circuit 12 and supplies the timing signal to the other components of the recording/reproducing apparatus.

摘要翻译： 一种包括OP头11，摆动电路12，系统控制器13和地址解码定时发生器14的记录/再现装置。 摆动电路12从OP头11读取的信号中提取摆动信号。 在不产生正常摆动信号的情况下，保持用于从摆动信号产生同步信号的PLL电路。 地址解码定时发生器（地址DEC TG）14接收OP头11已经再现的信号，对由该信号表示的地址进行解码，并将该地址数据提供给系统控制器13。 发生器14还根据从摆动电路12提供的同步信号产生定时信号，并将定时信号提供给记录/重放装置的其它部件。

公开(公告)号：US5689479A

公开(公告)日：1997-11-18

申请号：US719183

申请日：1996-09-24

申请人： Tadaaki Nomoto

发明人： Tadaaki Nomoto

IPC分类号： G11B7/007 ,  G11B11/105 ,  G11B20/12 ,  G11B27/19 ,  G11B27/30 ,  G11B11/00

CPC分类号： G11B20/1258 ,  G11B11/10508 ,  G11B11/10513 ,  G11B11/10595 ,  G11B27/19 ,  G11B27/3027 ,  G11B2220/2525 ,  G11B7/00745

摘要： In a magneto-optical recording apparatus, since a magnetic field is not generated in a data recording impossible area in order to lower power consumption, sufficient intensity of the magnetic field can be obtained at the head of a data recording area. In the case of recording information data in a data recording area of a magneto-optical recording medium, a magnetic field is generated in a data recording impossible area which exists between a pit formed at the latest end side of the data recording impossible area and the head of a data recording area located just after the data recording impossible area, without generating the magnetic field during the time of scanning a laser beam from the head of a data impossible area located just before a data recording area and a pit formed at the latest end side of the data recording impossible area. Thereby practically sufficient intensity of the magnetic field can be steadily and surely obtained at the time of recording information data in the data recording area. Thus a magneto-optical recording apparatus and a magneto-optical recording method which is able to cope with to high-density recording with low power consumption can be realized.

摘要翻译： 在磁光记录装置中，由于在数据记录不可能区域中不产生磁场，以便降低功耗，可以在数据记录区域的头部获得足够的磁场强度。 在将信息数据记录在磁光记录介质的数据记录区域中的情况下，在不可数据区域的最后端形成的凹坑之间的数据记录不可能区域产生磁场， 位于数据记录不可能区域之后的数据记录区域的头部，在从位于数据记录区域之前的数据不可能区域的头部扫描激光束的时间期间不产生磁场，并且最后形成凹坑 数据记录不可能区域的端面。 因此，在数据记录区域中记录信息数据时，可以稳定且可靠地获得充分的磁场强度。 因此，可以实现能够以低功耗处理高密度记录的磁光记录装置和磁光记录方法。

公开(公告)号：US07706222B2

公开(公告)日：2010-04-27

申请号：US11741267

申请日：2007-04-27

申请人： Mariko Fukuyama ,  Tadaaki Nomoto

发明人： Mariko Fukuyama ,  Tadaaki Nomoto

IPC分类号： G11B20/10

CPC分类号： G11B27/24 ,  G11B20/10 ,  G11B20/14

摘要： A demodulator for demodulating an input signal including a predetermined modulated signal includes a multiplication fundamental wave generator for outputting a multiplication fundamental wave for the predetermined modulated signal, a calculator for multiplying the multiplication fundamental wave by the input signal and for integrating the multiplication result, a demodulated signal generator for generating a demodulated signal of the modulated signal using the output from the calculator, a phase determiner for determining a cross-phase state of the input signal and the multiplication fundamental wave on the basis of a balance of levels of a plurality of integrated values, obtained as the integration result, for an interval containing the modulated signal in the input signal, and a phase adjuster for adjusting a phase of the multiplication fundamental wave to be supplied to the calculator on the basis of the determination result of the phase determiner.

摘要翻译： 用于解调包括预定调制信号的输入信号的解调器包括用于输出用于预定调制信号的乘法基波的乘法基波发生器，用于将乘法基本波乘以输入信号并用于积分乘法结果的计算器， 解调信号发生器，用于使用来自所述计算器的输出来产生所述调制信号的解调信号;相位确定器，用于基于所述多个信号的电平的平衡来确定所述输入信号和所述乘法基波的交叉相位状态; 作为积分结果获得的积分值用于包含输入信号中的调制信号的间隔，以及相位调整器，用于根据相位的确定结果调整要提供给计算器的乘法基波的相位 决定者

公开(公告)号：US07057985B1

公开(公告)日：2006-06-06

申请号：US09689005

申请日：2000-10-12

申请人： Shoei Kobayashi ,  Tadaaki Nomoto

发明人： Shoei Kobayashi ,  Tadaaki Nomoto

IPC分类号： G11B11/00 ,  H04N5/06

CPC分类号： H03L7/14 ,  G11B7/0053 ,  G11B20/10 ,  G11B27/24 ,  G11B2220/20 ,  H03L7/18 ,  H04N5/126 ,  H04N5/85 ,  H04N9/8042

摘要： A recording/reproducing apparatus and method are provided to record and reproduce data on and from a disk-shaped recording medium that has an address data area with embossed pits and a recording/reproducing area with a wobbling spiral groove. A wobble-signal processing circuit is used to extract a wobble signal from the signal the head obtains from the wobbling spiral groove and to provide the wobble signal to a PLL circuit to produce a sync signal therefrom. A pulse is produced at least during a wobble signal disturbance period occurring when switching between at least one of a recording and reproducing operation and provided to the PLL circuit in order to provide an unchanging sync signal during the wobble signal disturbance period to avoid the wobble disturbances from being carried over to the sync signal.

摘要翻译： 提供了一种记录/再现装置和方法，用于在具有带浮雕凹坑的地址数据区域和具有摆动螺旋槽的记录/再现区域的盘形记录介质上记录和再现数据。 使用摆动信号处理电路从摇头螺旋槽获得的信号中提取摆动信号，并将摆动信号提供给PLL电路以产生同步信号。 至少在摆动信号干扰期间产生脉冲，当在至少一个记录和再现操作之间切换并提供给PLL电路时，为了在摆动信号扰动周期期间提供不变的同步信号，以避免摆动干扰 从被转移到同步信号。

公开(公告)号：US5754522A

公开(公告)日：1998-05-19

申请号：US789085

申请日：1997-01-27

申请人： Shoei Kobayashi ,  Tadaaki Nomoto ,  Shuji Uehara

发明人： Shoei Kobayashi ,  Tadaaki Nomoto ,  Shuji Uehara

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/007 ,  G11B7/26 ,  G11B11/105 ,  G11B20/12 ,  G11B20/14 ,  G11B21/08 ,  G11B21/10 ,  G11B27/10 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  G11B7/24

CPC分类号： G11B27/3027 ,  G11B20/1258 ,  G11B20/1419 ,  G11B21/085 ,  G11B21/10 ,  G11B27/105 ,  G11B27/24 ,  G11B7/0079 ,  G11B7/24082 ,  G11B7/261 ,  G11B11/10563 ,  G11B11/10595 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2529 ,  G11B2220/2545 ,  G11B2220/2562 ,  G11B2220/2575 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/00745

摘要： In a disk with a wobbling pregroove, data can be recorded in high density. A recording/reproducing apparatus for recording/reproducing data on/from a disk in which a sector is constituted by one arbitrary integer (F) of data frames, a cluster is constituted by another arbitrary integer (S) of the sectors, and data is recorded or reproduced in unit of the sector, or in unit of the cluster, is comprised of: reading means for reading a track number of an access point of the disk; storing means for storing a table about the track number and a zone, in which the following relationship is established, i.e., in two sets of the zones located adjacent to each other, data frame number of the zone per 1 rotation provided on an outer circumferential side of the disk is set to a value larger than data frame number of the zone per 1 rotation provided on an inner circumferential side of the disk by another arbitrary integer (K), the integer (K) being smaller than the integer (F); judging means for judging the zone belonging to the track number read by the reading means with reference to the table of the storing means; and generating means for generating a clock having a predetermined frequency in response to a judgment result the judging means.

摘要翻译： 在具有摆动预槽的磁盘中，可以高密度地记录数据。 一种用于在盘上记录/再现数据的记录/再现装置，其中扇区由数据帧的一个任意整数（F）构成，簇由扇区的另一任意整数（S）构成，数据是 以扇区为单位或以群集为单位记录或再现的步骤包括：用于读取盘的接入点的轨道号的读取装置; 用于存储关于轨道号的表和存在以下关系被建立的区域的区域的存储装置，即在彼此相邻的两组区域中，设置在外周上的每1次旋转的区域的数据帧号 将该盘的一侧设定为大于在盘的内周侧上设置的另一任意整数（K）的每1次旋转的区域的数据帧号，该整数（K）小于整数（F） ; 参照存储装置的表格判断属于由读取装置读取的磁道号的区域的判断装置; 以及产生装置，用于根据判断结果产生具有预定频率的时钟。