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1. 发明申请

US20080002541A1 RECORDING APPARATUS AND RECORD LEARNING METHOD 审中-公开
标题翻译：记录装置和记录学习方法
公开(公告)号：US20080002541A1
公开(公告)日：2008-01-03
申请号：US11766398
申请日：2007-06-21
申请人： Hiroaki MORINO , Koichi Otake , Yukiyasu Tatsuzawa , Hiroyuki Moro , Takahiro Nango , You Yoshioka
发明人： Hiroaki MORINO , Koichi Otake , Yukiyasu Tatsuzawa , Hiroyuki Moro , Takahiro Nango , You Yoshioka
IPC分类号： G11B5/09
CPC分类号： G11B7/00456
摘要： There is provided a recording apparatus which modulates record data by a predetermined modulation method and records record patterns corresponding to the record data on an optical disk, including a random data generator which generates random data as the record data, a data exchange processor which performs exchange processing on the random data so as to equalize a frequency of appearance of each of the record patterns relative to the entire record patterns on the optical disk corresponding to the respective random data, a modulator which modulates the random data subjected to the exchange processing by the predetermined modulation method, an optical head which records record patterns corresponding to the modulated random data on the optical disk, and reproduces the modulated random data from the recorded record patterns, and a record learning unit which calculates correction amounts for recorded positions of the respective record patterns based on the reproduced random data.
摘要翻译：提供了一种记录装置，其通过预定的调制方法对记录数据进行调制，并将与记录数据相对应的记录模式记录在光盘上，该光盘包括产生作为记录数据的随机数据的随机数据发生器，执行交换的数据交换处理器对随机数据进行处理，以便相对于与各个随机数据相对应的光盘上的整个记录图形来均衡每个记录图案的出现频率，调制器，其通过由该随机数据进行交换处理的随机数据进行调制预定的调制方法，记录与光盘上调制的随机数据相对应的记录图形的光头，并从所记录的记录图形中再现调制的随机数据;以及记录学习单元，计算各个记录的记录位置的校正量基于再现的随机数据的图案。

2. 发明申请

US20080002533A1 Information recording and reproducing apparatus, and information recording and reproducing method 审中-公开
标题翻译：信息记录和再现装置以及信息记录和再现方法
公开(公告)号：US20080002533A1
公开(公告)日：2008-01-03
申请号：US11821207
申请日：2007-06-22
申请人： Takahiro Nango , Koichi Otake , Yukiyasu Tatsuzawa , Hiroyuki Moro , Toshifumi Yamamoto , You Yoshioka , Hiroaki Morino
发明人： Takahiro Nango , Koichi Otake , Yukiyasu Tatsuzawa , Hiroyuki Moro , Toshifumi Yamamoto , You Yoshioka , Hiroaki Morino
IPC分类号： G11B20/18
CPC分类号： G11B20/10009 , G11B20/10027 , G11B20/10046 , G11B20/10055 , G11B20/10222 , G11B20/10296 , G11B20/1426 , G11B2020/1287 , G11B2020/1469
摘要： According to one embodiment, in an information recording and reproducing apparatus, a record data correction unit generates correction data for correcting a record waveform generated according to record data. Further, the information recording and reproducing apparatus generates discrimination data for use in pattern discrimination performed to generate the correction data, using decoded data outputted from a PRML signal processing unit and the record data, and outputs the generated discrimination data to the record data correction unit.
摘要翻译：根据一个实施例，在信息记录和再现装置中，记录数据校正单元产生用于校正根据记录数据产生的记录波形的校正数据。此外，信息记录和再现装置使用从PRML信号处理单元输出的解码数据和记录数据产生用于产生校正数据的模式识别中使用的鉴别数据，并将产生的鉴别数据输出到记录数据校正单元。

3. 发明申请

US20070030777A1 Digital data reproducing device 审中-公开
标题翻译：数字数据再现装置
公开(公告)号：US20070030777A1
公开(公告)日：2007-02-08
申请号：US11498072
申请日：2006-08-03
申请人： Hideyuki Yamakawa , Koichi Otake , Yukiyasu Tatsuzawa , Hiroyuki Moro , Toshihiko Kaneshige , Hiroaki Morino
发明人： Hideyuki Yamakawa , Koichi Otake , Yukiyasu Tatsuzawa , Hiroyuki Moro , Toshihiko Kaneshige , Hiroaki Morino
IPC分类号： G11B20/10
CPC分类号： G11B20/10 , G11B20/10009 , G11B20/10046 , G11B20/14
摘要： An optical disk device which decodes data recorded on an optical disk, comprises a first measuring unit which measure a cycle of a plurality of first synchronous signal regions VFO contained in a reproduction signal from an optical pickup, a cycle comparing unit which compares the measurement result of the first measuring unit with a first predetermined cycle, a second measuring unit which measures a cycle of a plurality of second synchronous signal regions SYNC which are contained in the reproduction signal from the optical pickup and have the cycle shorter than that of the plurality of first synchronous signal regions VFO, a cycle comparing unit which compares the measurement result of the second measuring unit with a second predetermined cycle, and an oscillator which generates a clock signal CKS for sampling the reproduction signal on the basis of the comparison results of the first and second cycle comparing units.
摘要翻译：一种对记录在光盘上的数据进行解码的光盘装置，包括测量来自光学拾取器的再现信号中包含的多个第一同步信号区域VFO的周期的第一测量单元，比较测量结果具有第一预定周期的第一测量单元，第二测量单元，其测量来自光学拾取器的再现信号中包含的多个第二同步信号区域SYNC的周期，并且具有比多个第一同步信号区域VFO，将第二测量单元的测量结果与第二预定周期进行比较的周期比较单元，以及基于第一预定周期的比较结果生成用于对再现信号进行采样的时钟信号CKS的振荡器和第二循环比较单位。

4. 发明申请

US20050141373A1 Optical disk apparatus, method of recording information, and information recording medium 失效
标题翻译：光盘装置，记录信息的方法和信息记录介质
公开(公告)号：US20050141373A1
公开(公告)日：2005-06-30
申请号：US11017703
申请日：2004-12-22
申请人： Toshihiko Kaneshige , Koichi Otake , Hideyuki Yamakawa , Yukiyasu Tatsuzawa , Hiroyuki Moro
发明人： Toshihiko Kaneshige , Koichi Otake , Hideyuki Yamakawa , Yukiyasu Tatsuzawa , Hiroyuki Moro
IPC分类号： G11B20/10 , G11B7/0045 , G11B7/007 , G11B20/12 , G11B20/14 , G11B27/19 , G11B27/24 , G11B27/30 , G11B5/09
CPC分类号： G11B27/24 , G11B7/24082 , G11B20/1217 , G11B20/1403 , G11B2020/1239 , G11B2020/1269 , G11B2020/1476 , G11B2220/216 , G11B2220/2537 , G11B2220/2562 , G11B2220/2575
摘要： A recorded stream generator generates a data block stream in synchronism with the phase of a recording clock, from the input data. The recorded stream generator further generates, for each predetermined data unit constituting the data block stream, a data phase reference pulse indicative of the phase of the data unit. An inserting section inserts a VFO signal into a predetermined amount (32 sectors) of the data block stream, the VFO signal having a length of time corresponding to a difference in phase between an wobble address phase signal and a data phase reference pulse. The inserting section thus provides a data stream DST consisting of the VFO signals and the data block streams. An LD uses light beams to record the data stream on an optical disk.
摘要翻译：记录流生成器根据输入数据与记录时钟的相位同步地生成数据块流。对于构成数据块流的每个预定数据单元，记录的流生成器还产生指示数据单元的相位的数据相位参考脉冲。插入部分将VFO信号插入到数据块流的预定量（32个扇区）中，VFO信号具有与摆动地址相位信号和数据相位参考脉冲之间的相位差相对应的时间长度。因此，插入部分提供由VFO信号和数据块流组成的数据流DST。 LD使用光束将数据流记录在光盘上。

5. 发明申请

US20050117484A1 Disk device and disk reproduction method 失效
标题翻译：磁盘设备和磁盘再现方法
公开(公告)号：US20050117484A1
公开(公告)日：2005-06-02
申请号：US10994529
申请日：2004-11-23
申请人： Yukiyasu Tatsuzawa , Koichi Otake , Hideyuki Yamakawa , Hiroyuki Moro , Toshihiko Kaneshige
发明人： Yukiyasu Tatsuzawa , Koichi Otake , Hideyuki Yamakawa , Hiroyuki Moro , Toshihiko Kaneshige
IPC分类号： G11B7/005 , G11B20/10 , G11B20/18 , G11B27/36 , G11B5/09
CPC分类号： G11B20/10027 , G11B20/10009 , G11B20/10046 , G11B20/10481 , G11B27/36 , G11B2220/2562
摘要： A disk device includes a reading section which reads reflected light and outputs a read signal according to the read reflected light, a processing section which calculates an adjustment value from the read signal, performs predetermined processing on the read signal based on the adjustment value, and outputs a process signal, a detecting section which detects a reading defect in the reading section based on the read signal, a determining section which determines signal quality of the process signal output from the processing section, a storage section which stores the adjustment value calculated by the processing section, in a memory area, based on a result output from the determining section, and a controller which, when the detecting section detects the reading defect, performs control so that the adjustment value is read out of the storage section and is supplied to the processing section.
摘要翻译：磁盘装置包括读取部分，其读取反射光并根据读取的反射光输出读取信号;处理部分，根据读取的信号计算调整值;根据调整值对读取的信号执行预定的处理;以及输出处理信号，检测部，其基于读取信号检测读取部中的读取缺陷;确定部，确定从处理部输出的处理信号的信号质量;存储部，存储由所述处理部分在存储区域中基于从所述确定部分输出的结果，以及控制器，当所述检测部分检测到所述读取缺陷时，进行所述调整值从所述存储部分读出并被提供的控制器到处理部分。

6. 发明授权

US07379408B2 Disk apparatus and method using plural tap coefficient equalization 有权
标题翻译：使用多个抽头系数均衡的磁盘装置和方法
公开(公告)号：US07379408B2
公开(公告)日：2008-05-27
申请号：US11012066
申请日：2004-12-15
申请人： Yukiyasu Tatsuzawa , Koichi Otake , Hideyuki Yamakawa , Hiroyuki Moro , Toshihiko Kaneshige
发明人： Yukiyasu Tatsuzawa , Koichi Otake , Hideyuki Yamakawa , Hiroyuki Moro , Toshihiko Kaneshige
IPC分类号： G11B7/00
CPC分类号： G11B20/10212 , G11B20/10046 , G11B20/10111 , G11B20/10333
摘要： A disk apparatus has an equalizing unit which performs PR equalization for the read signal from the disk based on a plurality of tap coefficients, a decoding unit which performs a decoding process for the equalized read signal, a calculating unit which obtains an ideal signal of the decoded read signal, and compares the ideal signal with the decoded read signal, thereby calculating an error signal E, and a control unit which groups the tap coefficients into at least a first and second coefficient groups which are groups of tap coefficients at symmetrical locations each, and determines tap coefficients of the first coefficient group in a range of a first limit value K1 according to the calculated error signal, determines tap coefficients of the second coefficient group in a range of a second limit value and supplies the determined tap coefficients to the equalizing unit.
摘要翻译：盘装置具有均衡单元，其基于多个抽头系数对来自盘的读取信号进行PR均衡，对均衡的读取信号执行解码处理的解码单元，获得均衡的读取信号的理想信号的计算单元并且将理想信号与解码的读取信号进行比较，从而计算误差信号E，以及控制单元，其将抽头系数分组为至少第一和第二系数组，每个系数组是每个对称位置的抽头系数组并且根据计算出的误差信号确定第一限制值K 1的范围内的第一系数组的抽头系数，在第二限制值的范围内确定第二系数组的抽头系数，并将确定的抽头系数提供给均衡单位。

7. 发明申请

US20050141378A1 Disk apparatus and disk reproducing method 有权
标题翻译：磁盘装置和磁盘再现方法
公开(公告)号：US20050141378A1
公开(公告)日：2005-06-30
申请号：US11012066
申请日：2004-12-15
申请人： Yukiyasu Tatsuzawa , Koichi Otake , Hideyuki Yamakawa , Hiroyuki Moro , Toshihiko Kaneshige
发明人： Yukiyasu Tatsuzawa , Koichi Otake , Hideyuki Yamakawa , Hiroyuki Moro , Toshihiko Kaneshige
IPC分类号： G11B20/14 , G11B5/58 , G11B7/004 , G11B7/005 , G11B7/095 , G11B20/10 , G11B20/18
CPC分类号： G11B20/10212 , G11B20/10046 , G11B20/10111 , G11B20/10333
摘要： A disk apparatus has an equalizing unit which performs PR equalization for the read signal from the disk based on a plurality of tap coefficients, a decoding unit which performs a decoding process for the equalized read signal, a calculating unit which obtains an ideal signal of the decoded read signal, and compares the ideal signal with the decoded read signal, thereby calculating an error signal E, and a control unit which groups the tap coefficients into at least a first and second coefficient groups which are groups of tap coefficients at symmetrical locations each, and determines tap coefficients of the first coefficient group in a range of a first limit value K1 according to the calculated error signal, determines tap coefficients of the second coefficient group in a range of a second limit value and supplies the determined tap coefficients to the equalizing unit.
摘要翻译：盘装置具有均衡单元，其基于多个抽头系数对来自盘的读取信号进行PR均衡，对均衡的读取信号执行解码处理的解码单元，获得均衡的读取信号的理想信号的计算单元并且将理想信号与解码的读取信号进行比较，从而计算误差信号E，以及控制单元，其将抽头系数分组为至少第一和第二系数组，每个系数组是每个对称位置的抽头系数组并且根据计算出的误差信号确定第一限制值K 1的范围内的第一系数组的抽头系数，在第二限制值的范围内确定第二系数组的抽头系数，并将确定的抽头系数提供给均衡单位。

8. 发明申请

US20060023604A1 Signal processing apparatus and method for recording medium 审中-公开
标题翻译：用于记录介质的信号处理装置和方法
公开(公告)号：US20060023604A1
公开(公告)日：2006-02-02
申请号：US11190072
申请日：2005-07-27
申请人： Hideyuki Yamakawa , Koichi Otake , Yukiyasu Tatsuzawa , Hiroyuki Moro , Toshihiko Kaneshige
发明人： Hideyuki Yamakawa , Koichi Otake , Yukiyasu Tatsuzawa , Hiroyuki Moro , Toshihiko Kaneshige
IPC分类号： G11B20/10 , G11B5/09
CPC分类号： G11B20/10009 , G11B7/00736 , G11B20/10083 , G11B20/1012 , G11B20/10166 , G11B20/10296
摘要： There is provided an apparatus which can flexibly cope with both of a signal reproduction process for a region with high recording density and a signal reproduction process for a region with low recording density. The apparatus includes a waveform equalizing circuit which subjects data read out from an optical disk to a waveform equalizing process, a plurality of PRML processors of different classes supplied with an output signal of the waveform equalizing circuit, a switch which selects one of output signals of the plurality of PRML processors and supplies the selected output signal to a decoder, and a controller which controls the switch according to high-density and low-density regions with different recording densities of the optical disk to set a selection state in which a corresponding one of the output signals of the plurality of PRML processors is selected.
摘要翻译：提供了一种能够灵活地处理具有高记录密度的区域的信号再现处理和具有低记录密度的区域的信号再现处理两者的装置。该装置包括波形均衡电路，其对从光盘读出的数据进行波形均衡处理，多个提供有波形均衡电路的输出信号的不同类别的PRML处理器，选择一个输出信号的开关多个PRML处理器并将所选择的输出信号提供给解码器，以及控制器，其根据具有不同光盘记录密度的高密度和低密度区域来控制开关，以设置选择状态，其中相应的一个选择多个PRML处理器的输出信号。

9. 发明申请

US20050185559A1 Optical disk device, reproduction method of information on optical disk, and optical disk 审中-公开
标题翻译：光盘装置，光盘上的信息的再现方法和光盘
公开(公告)号：US20050185559A1
公开(公告)日：2005-08-25
申请号：US11046686
申请日：2005-02-01
申请人： Hiroyuki Moro , Toshihiko Kaneshige , Hideyuki Yamakawa , Koichi Otake , Yukiyasu Tatsuzawa
发明人： Hiroyuki Moro , Toshihiko Kaneshige , Hideyuki Yamakawa , Koichi Otake , Yukiyasu Tatsuzawa
IPC分类号： G11B7/005 , G11B20/10 , G11B20/18
CPC分类号： G11B20/10009 , G11B20/10037 , G11B20/10055 , G11B20/10222 , G11B20/10296 , G11B2020/1287
摘要： A digital RF signal resulting from A/D conversion of an RF signal reproduced from an optical disk is compared with a plurality of set values, so that a predetermined waveform is detected from the digital RF signal. The wavelength of the detected waveform is measured, and the A/D conversion is controlled based on this wavelength. Comparing the digital RF signal with the plural set values enables high-accuracy waveform detection.
摘要翻译：将从光盘再现的RF信号的A / D转换产生的数字RF信号与多个设定值进行比较，从而从数字RF信号检测预定波形。测量检测波形的波长，并根据该波长控制A / D转换。将数字RF信号与多个设定值进行比较可实现高精度波形检测。

10. 发明申请

US20050105440A1 Disk apparatus and disk reproducing method 审中-公开
标题翻译：磁盘装置和磁盘再现方法
公开(公告)号：US20050105440A1
公开(公告)日：2005-05-19
申请号：US10990522
申请日：2004-11-18
申请人： Koichi Otake , Hideyuki Yamakawa , Yukiyasu Tatsuzawa , Hiroyuki Moro , Toshihiko Kaneshige
发明人： Koichi Otake , Hideyuki Yamakawa , Yukiyasu Tatsuzawa , Hiroyuki Moro , Toshihiko Kaneshige
IPC分类号： G11B20/14 , G11B5/09 , G11B20/10 , G11B20/18 , H04N5/91
CPC分类号： G11B20/1403 , G11B2020/1287
摘要： A disk apparatus has a reading portion which reads out a plurality of frames stored in a disk and outputs a read signal, a detecting portion which determines that part of the read signal is identical to a frame synchronization code signal or determines that a deviation between a symbol of part of the read signal and a symbol of the frame synchronization code signal is within a certain time range to detect the frame synchronization code signals from the read signal, and a reproducing portion which reproduces the read signal in synchronization with the detected frame synchronization code signals.
摘要翻译：磁盘装置具有：读出存储在磁盘中的多个帧的读出部，输出读取信号;检测部，其判定读取信号的一部分与帧同步码信号相同，或者判定为读取信号的一部分的符号和帧同步码信号的符号在一定时间范围内，以检测来自读取信号的帧同步码信号，再现部分与检测到的帧同步同步地再现读取信号代码信号。

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