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11. 发明专利

JP2007273017A Information reproducing device, error correcting method, and integrated circuit 审中-公开
标题翻译：信息再现设备，错误校正方法和集成电路
公开(公告)号：JP2007273017A
公开(公告)日：2007-10-18
申请号：JP2006098817
申请日：2006-03-31
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： KIMURA NAOHIRO
IPC分类号： G11B20/18 , G11B20/10
摘要： PROBLEM TO BE SOLVED: To provide an information reproducing device in which error correction capability is improved by adding a disappearance pointer more efficiently.
SOLUTION: In the information reproducing device, a position of an error caused in a second encoded data is obtained for respective compound encoded data reproduced by a plurality of number of times from an arbitrary position A of an information carrier, a clue position is decided by the number of times of errors, and the disappearance point is added.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种更有效地添加消失指针来改善纠错能力的信息再现装置。解决方案：在信息再现装置中，从信息载体的任意位置A，线索位置，多个次数再现的各个复合编码数据获得针对第二编码数据引起的误差的位置由错误次数决定，并添加消失点。版权所有（C）2008，JPO＆INPIT

12. 发明专利

JP2005129178A Optical disk drive 审中-公开
标题翻译：光盘驱动器
公开(公告)号：JP2005129178A
公开(公告)日：2005-05-19
申请号：JP2003365650
申请日：2003-10-27
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： KIMURA NAOHIRO , ISHIBASHI HIROMICHI
IPC分类号： G11B7/0045 , G11B7/005 , G11B7/095 , G11B7/125 , G11B21/10
摘要： PROBLEM TO BE SOLVED: To solve the problem that record reproduction speed drops especially when performing high speed record reproduction since the disk drive learns more than required when learning at constant intervals without depending on the signal quality. SOLUTION: This optical disk drive has a disk 10, an optical pickup 11, a laser control circuit 12, a reproduction circuit 13, a jitter detector circuit 14, and a system controller 15. The system controller 15 sets the time until the next laser power learning in the built-in timer according to the jitter value outputted by the jitter detector circuit 14 so that useless learning can be eliminated. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了解决在进行高速记录再现时记录再现速度下降的问题，因为在不依赖于信号质量的情况下以恒定间隔学习时，磁盘驱动器学习多于所需的数据。解决方案：该光盘驱动器具有盘10，光学拾取器11，激光控制电路12，再现电路13，抖动检测器电路14和系统控制器15.系统控制器15将时间直到根据由抖动检测器电路14输出的抖动值，内置定时器中的下一个激光功率学习，从而可以消除无用的学习。版权所有（C）2005，JPO＆NCIPI

13. 发明专利

JP2002279646A OPTICAL DISK, SIGNAL RECORDING METHOD AND OPTICAL DISK DEVICE 失效
公开(公告)号：JP2002279646A
公开(公告)日：2002-09-27
申请号：JP2001077855
申请日：2001-03-19
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KIMURA NAOHIRO , ISHIBASHI HIROMICHI , FURUMIYA SHIGERU , MINAMINO JUNICHI
IPC分类号： G11B7/24 , G11B7/007 , G11B20/12
摘要： PROBLEM TO BE SOLVED: To provide an optical disk wherein dummy data is accurately recorded in the invalid data area of a zone boundary even without address information, and no unrecorded parts are present. SOLUTION: Identification marks arranged at predetermined intervals shorter than those of a VFO area are formed in an invalid data area, and dummy data are recorded by using these marks as references.

14. 发明专利

JP2000200417A OPTICAL DISK DEVICE 失效
公开(公告)号：JP2000200417A
公开(公告)日：2000-07-18
申请号：JP31043099
申请日：1999-10-29
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SHIHARA TETSUYA , WATANABE KATSUYA , KIMURA NAOHIRO , TAKAHASHI HIDEMI
IPC分类号： G11B7/004 , G11B7/007 , G11B7/085 , G11B19/02
摘要： PROBLEM TO BE SOLVED: To enable a prescribed track to be established by discriminating, on the basis of the output signal of light quantity detection, whether the address part with a light beam passed is on the outer or the inner periphery with respect to the center of the information track, and by reproducing and recording based on the address polarity discrimination result and the address information. SOLUTION: An address read circuit 52 obtains address information based on the output of a differential amplifier 24, while an address polarity discrimination circuit 51 generates an address polarity discrimination signal based on that output. An address information establishing circuit 53 establishes the address of a track on which a light beam is scanning, on the basis of the address polarity discrimination signal and the output of the address information read circuit 52. If the address information read circuit 52 can obtain both pieces of the address information arranged in zigzag, the central processing unit CPU 54 or the like uses the output result of the address information establishing circuit 53 as it is; if the read circuit 52 can obtain only one piece of the information, the establishing circuit 53 refers to the address polarity discrimination signal.

15. 发明专利

JP2008262624A Address translation method, defect display device, optical disk device, and integrated circuit 审中-公开
标题翻译：地址转换方法，缺陷显示设备，光盘设备和集成电路
公开(公告)号：JP2008262624A
公开(公告)日：2008-10-30
申请号：JP2007103626
申请日：2007-04-11
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： KIMURA NAOHIRO
IPC分类号： G11B7/004 , G11B7/085 , G11B7/24 , G11B20/18
摘要： PROBLEM TO BE SOLVED: To provide a defect display device capable of correctly displaying a defect by using a recording starting radius, a sector length and a track interval according to a disk. SOLUTION: In the defect display device, operation is performed by using three parameters of a sector length, an innermost peripheral radius and a track pitch according to a disk 51 which is CLV formatted to translate an address into coordinates. Thereby, there is an effect that a rotational angle can be correctly obtained. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供能够通过使用记录起始半径，扇区长度和根据盘的轨道间隔来正确地显示缺陷的缺陷显示装置。解决方案：在缺陷显示装置中，通过使用CLV格式化以将地址转换成坐标的盘51来使用扇区长度，最内周半径和轨道间距的三个参数进行操作。由此，能够正确地获得旋转角度的效果。版权所有（C）2009，JPO＆INPIT

16. 发明专利

JP2005025912A Method and circuit for error correction, error correction encoding, data reproduction or data recording 有权
标题翻译：用于错误校正，错误校正，数据复制或数据记录的方法和电路
公开(公告)号：JP2005025912A
公开(公告)日：2005-01-27
申请号：JP2003374647
申请日：2003-11-04
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： HASHIMOTO YUICHI , TAKAGI YUJI , USUI MAKOTO , KIMURA NAOHIRO , YAMAMOTO GIICHI
IPC分类号： G11B20/10 , G11B20/12 , G11B20/18
摘要： PROBLEM TO BE SOLVED: To provide a method and a circuit for error correction capable of preventing deterioration of bus accessing, and a method and a circuit for error correction encoding. SOLUTION: Data are read from a recording medium and the reproduced data are deinterleaved and stored in a first memory arbitrating the input/output to/from the first memory is. It is judged whether a predetermined number of data units is stored into the first memory. On the basis of the result data, transfer of the data stored in the first memory to a second memory is permitted. If data transfer is permitted, the reproduced data are transferred from the first memory 11 to the second memory, and input/output to/from the second memory 15 is arbitrated at the transfer. The reproduced data 15 stored in the second memory is then error corrected, and user data contained in the error corrected reproduction data are externally outputted from the second memory 15. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于防止总线访问恶化的纠错方法和电路，以及用于纠错编码的方法和电路。解决方案：从记录介质读取数据，再现数据被解交织并存储在第一存储器中，对第一存储器的输入/输出进行仲裁。判断是否将预定数量的数据单元存储到第一存储器中。基于结果数据，允许将存储在第一存储器中的数据传送到第二存储器。如果允许数据传送，则再现数据从第一存储器11传送到第二存储器，并且在传送时对来自第二存储器15的输入/输出进行仲裁。然后，存储在第二存储器中的再现数据15被纠错，并且包含在纠错再现数据中的用户数据从第二存储器15被外部输出。版权所有（C）2005，JPO＆NCIPI

17. 发明专利

JP2004335079A Recording control unit, recording and reproducing device, and recording control method 审中-公开
公开(公告)号：JP2004335079A
公开(公告)日：2004-11-25
申请号：JP2004117386
申请日：2004-04-12
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： MIYASHITA SEIJUN , NAKAJIMA TAKESHI , KIMURA NAOHIRO
IPC分类号： G11B20/10 , G11B7/0045 , G11B20/18
CPC分类号： G11B7/1267
摘要： PROBLEM TO BE SOLVED: To set optimum recording parameters most suitable to the most likelihood decoding method.
SOLUTION: The operation of a reliability value |Pa-Pb|-Pstd of a result of the most likelihood of a part which corresponds to the start and final end parts of an edge of a recording mark and in which occurrence probability is higher in the most likelihood decoding method is performed by each combination of the prescribed mark length and space length immediately before, and each combination of the mark length and space length immediately after, recording parameters optimizing an edge shift position is obtained from the operation result, and recording in which the obtained recording parameter is reflected is performed.
COPYRIGHT: (C)2005,JPO&NCIPI

18. 发明专利

JP2004327015A Integrated circuit, optical disk device, and signal monitoring method 审中-公开
公开(公告)号：JP2004327015A
公开(公告)日：2004-11-18
申请号：JP2004098854
申请日：2004-03-30
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： KIMURA NAOHIRO , MIYASHITA SEIJUN , NAKAJIMA TAKESHI , ISHIBASHI HIROMICHI , YAMAMOTO GIICHI , NAKADA KOHEI
IPC分类号： G01R31/317 , G11B20/10
摘要： PROBLEM TO BE SOLVED: To provide an integrated circuit which prevents increase in a manufacturing cost produced by providing a terminal for monitor exclusive use and increase in a noise resulting from a monitor signal, and capable of monitoring an internal signal.
SOLUTION: The integrated circuit 26 comprises a signal processing circuit 20 which generates a processing signal including processing information obtained by performing predetermined processing to an input signal, a memory section 22 for holding the processing information of the processing signal, an interface 25 which exchanges a signal with an external device, and a control section 23. When a first command is received from the external device via the interface 25, the control section 23 controls the signal processing circuit 20 and the memory section 22 so as to make the memory section 22 hold the processing information of the processing signal output from the signal processing circuit 20, and so as to output the processing information held in the memory section 22 to the external device from the interface 25. When a second command is received from the external device via the interface 25, the control section 23 makes the memory section 22 hold internal information of the internal signal generated by the signal processing circuit 20, and outputs the internal information held in the memory section 22 to the external device from the interface 25.
COPYRIGHT: (C)2005,JPO&NCIPI

19. 发明专利

JP2004005908A ADDRESS INFORMATION REPRODUCING METHOD AND ADDRESS INFORMATION REPRODUCING DEVICE 审中-公开
公开(公告)号：JP2004005908A
公开(公告)日：2004-01-08
申请号：JP2003007426
申请日：2003-01-15
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAKAO MASAHITO , KIMURA NAOHIRO , FURUMIYA SHIGERU , MINAMINO JUNICHI , ISHIBASHI HIROMICHI
IPC分类号： G11B20/14 , G11B7/005 , G11B7/007
摘要： PROBLEM TO BE SOLVED: To provide an address information reproducing method and address information reproducing device by which high-reliability address information can be obtained even if the quality of an address reproduction signal is deteriorated by various primary factors. SOLUTION: An optical disk is provided with regions comprising sinusoidal wave areas, first regions comprising areas where the phase of part of the sinusoidal wave areas is inverted and second regions comprising areas where the deviation toward the inner periphery of the disk or the deviation toward the outer periphery thereof is steepened. The reflected light obtained by scanning the grooves of the optical disk is differentially detected by detectors 401 and 402 divided in the radial direction of the disk. Integrated values 417 and 418 of the reproduced signals corresponding to the first and second regions and an added value 422 of the integrated values are determined. The address information is discriminated by a discriminator 423 based on the added value 422. COPYRIGHT: (C)2004,JPO

20. 发明专利

JP2004213870A Address reproduction circuit, optical disk drive, and address reproduction method 审中-公开
公开(公告)号：JP2004213870A
公开(公告)日：2004-07-29
申请号：JP2003420205
申请日：2003-12-17
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： NAKAJIMA TAKESHI , MIYASHITA SEIJUN , KIMURA NAOHIRO , TAKAHASHI TOSHIHIKO , ISHII TAKAFUMI
IPC分类号： G11B20/14 , G11B7/005 , G11B20/18
摘要： PROBLEM TO BE SOLVED: To reproduce address information with high reliability even when the quality of wobble signal deteriorates. SOLUTION: An address reproduction circuit of this invention is an address reproducing circuit for reproducing the address information on the basis of a reproduced signal read from an optical disk provided with a guide groove having a wobbling shape showing modulated address information. The address reproduction circuit is provided with an A/D conversion part for converting an analog wobble signal included in the reproduced signal into a digital wobble signal and a maximum likelihood decoding part for generating an address signal showing address information having maximum likelihood from the digital wobble signal on the basis of a state transition rule defined by the modulation rule of the modulated address information. COPYRIGHT: (C)2004,JPO&NCIPI

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