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1. 发明专利

JP2007280491A Method and device for adjusting optical disk signal quality 审中-公开
标题翻译：调整光盘信号质量的方法和装置
公开(公告)号：JP2007280491A
公开(公告)日：2007-10-25
申请号：JP2006104665
申请日：2006-04-05
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： MIYASHITA SEIJUN , FUJIMOTO KEISUKE , NAKAO MASAHITO , HINO YASUMORI , HORIUCHI TERUOKI
IPC分类号： G11B7/004 , G11B7/0045
摘要： PROBLEM TO BE SOLVED: To provide an optical disk device capable of shortening processing time while keeping signal quality by controlling execution of adjustment itself to omit unnecessary adjustment.
SOLUTION: The optical disk device is provided with: a first recording condition adjusting part for adjusting a recording condition parameter to be optimal with respect to an optical disk; a second recording condition adjusting part for adjusting a recording condition parameter to be optimal by using the output of a state change detection part as a trigger; an output characteristic storage part for storing the optimal recording condition parameter which is the output result of at least the first or second recording condition adjusting part; and an adjustment execution control part for controlling the execution of the recording condition parameter adjustment of each state changing time on the basis of the fluctuation amount of the optimal recording condition parameter in the state change stored in the output result storage part. A control range where the second recording condition adjustment is executed by the adjustment execution control part during each state change is made variable.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过控制自身的执行来保持信号质量而缩短处理时间以省略不必要的调整的光盘装置。光盘装置设置有：第一记录条件调整部，用于将记录条件参数相对于光盘调整为最佳; 第二记录条件调整部分，用于通过使用状态改变检测部分的输出作为触发来将记录条件参数调整为最佳; 输出特性存储部分，用于存储作为至少第一或第二记录条件调节部分的输出结果的最佳记录条件参数; 以及调整执行控制部分，用于根据存储在输出结果存储部分中的状态变化中的最佳记录条件参数的变动量来控制每个状态改变时间的记录条件参数调整的执行。在每个状态改变期间由调节执行控制部执行第二记录条件调整的控制范围变为可变。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2007280495A Method and device for controlling optical disk recording pulse 审中-公开
标题翻译：用于控制光盘记录脉冲的方法和装置
公开(公告)号：JP2007280495A
公开(公告)日：2007-10-25
申请号：JP2006104821
申请日：2006-04-06
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： FUJIMOTO KEISUKE , MIYASHITA SEIJUN , HINO YASUMORI , NAKAO MASAHITO , HORIUCHI TERUOKI
IPC分类号： G11B7/0045 , G11B7/125
CPC分类号： G11B7/0062
摘要： PROBLEM TO BE SOLVED: To provide a device and a method for adjusting recording and reproduction parameters which are adaptive to changes in a recording environment or a reproduction environment while shortening a recording/reproducing time including an adjustment time and preventing the deterioration of record with respect to a recording/reproducing device for recording/reproducing information by irradiating a recording medium with a laser beam. SOLUTION: The recording/reproducing time including the adjustment time can be shortened and a test recording area for the use can also be reduced by performing parameter adjustment while changing adjustment items of the recording/reproducing parameters according to changes in the recording/reproducing environments. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于调整记录和再现参数的装置和方法，其适应于记录环境或再现环境中的变化，同时缩短包括调整时间的记录/再现时间并防止劣化关于通过用激光束照射记录介质来记录/再现信息的记录/再现装置的记录。解决方案：可以缩短包括调整时间的记录/再现时间，并且还可以通过在根据记录/再现参数的变化改变记录/再现参数的调整项目的同时执行参数调整来减少使用的测试记录区域。复制环境。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2004310920A Wobbling detecting device 审中-公开
公开(公告)号：JP2004310920A
公开(公告)日：2004-11-04
申请号：JP2003103947
申请日：2003-04-08
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： ISHIBASHI HIROMICHI , MINAMINO JUNICHI , NAKAO MASAHITO
IPC分类号： G11B7/005
摘要： PROBLEM TO BE SOLVED: To solve the problem of a reduction in a wobbling signal SN caused by a residual RF signal due to insufficient gain balance when a wobbling signal is detected.
SOLUTION: The wobbling detecting device for detecting the wobbling of a groove formed on an optical disk by the mutual difference calculation of the output signals of light receiving elements divided into two in a disk radial direction is provided with first and second variable gain amplifiers for changing the amplitudes of the signals of the two outputs according to supplied gain setting signals, first and second full-wave rectifiers for subjecting the AC components of the output signals of the variable amplifiers to full-wave rectification, and a feedback means for complimentarily supplying gain setting signals to the first and second variable gain amplifiers based on the mutual difference of the output of the full-wave rectifiers.
COPYRIGHT: (C)2005,JPO&NCIPI

4. 发明专利

JP2003223722A REPRODUCING METHOD AND APPARATUS 审中-公开
公开(公告)号：JP2003223722A
公开(公告)日：2003-08-08
申请号：JP2002336203
申请日：2002-11-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MINAMINO JUNICHI , NAKAO MASAHITO , FURUMIYA SHIGERU , ISHIBASHI HIROMICHI
IPC分类号： G11B20/10 , G11B7/005 , G11B7/007
摘要： PROBLEM TO BE SOLVED: To reproduce information always in the optimum condition in the heterodyne detection. SOLUTION: A method is provided for reproducing information from an information recording medium including a reference wobble block having a first wobble shape in which the contents of information are specified and an information wobble block which is provided so as to follow the reference wobble block and which includes at least one of the first wobble shape and a second wobble shape. The wobble shape of the read out information wobble block is compared with the first wobble shape of the reference wobble block. When the wobble shape of the information wobble block agrees with the first wobble shape, it is judged that the information recorded in the information wobble block is the same information that is recorded in the first wobble shape. When the wobble shape of the information wobble block is different from the first wobble shape, it is judged that the information recorded in the information wobble block is different from that recorded in the first wobble shape. COPYRIGHT: (C)2003,JPO

5. 发明专利

JP2002230904A INFORMATION REPRODUCING APPARATUS 审中-公开
公开(公告)号：JP2002230904A
公开(公告)日：2002-08-16
申请号：JP2001360272
申请日：2001-11-27
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MIYASHITA SEIJUN , MINAMINO JUNICHI , ISHIBASHI HIROMICHI , FURUMIYA SHIGERU , NAKAO MASAHITO
IPC分类号： G11B20/10 , G11B7/005 , G11B20/14
摘要： PROBLEM TO BE SOLVED: To excellently reproduce information even from a medium where data are recorded at a high density by performing a proper waveform equalization processing to a signal which is read out from a storage medium. SOLUTION: The apparatus for reproducing information that has been digitally recorded on the recording medium is provided with a first waveform equalizing circuit which equalizes a read signal corresponding to the information read out from the recording medium and outputs a first equalized signal, and a second waveform equalizing circuit, which has an equalization characteristic different from that of the first circuit, outputs a second equalized signal and is selectively used for extracting a read clock signal.

6. 发明专利

JP2005141894A Optical disk device, access method, program, and semiconductor integrated circuit 审中-公开
标题翻译：光盘设备，访问方法，程序和半导体集成电路
公开(公告)号：JP2005141894A
公开(公告)日：2005-06-02
申请号：JP2004298274
申请日：2004-10-12
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： NAKAO MASAHITO , HASHIMOTO SEIICHI
IPC分类号： G11B7/005 , G11B7/085
摘要： PROBLEM TO BE SOLVED: To provide an optical disk device for accessing an optical disk having at least one track formed therein. SOLUTION: This optical disk device is provided with a light applying means for applying a light to at least one track, a first signal generating means for detecting a reflected light from at least one track, and generating a first signal containing a prepit signal indicating at least one prepit based on the detected reflected light, a second signal generating means for generating a second signal by eliminating a signal component blocking the detection of the prepit signal from the first signal, and a prepit detecting means for detecting at least the one prepit based on at least one of the first and second signals. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于访问其中形成有至少一个轨道的光盘的光盘装置。解决方案：该光盘装置设置有用于将光施加到至少一个轨道的光施加装置，用于检测来自至少一个轨道的反射光的第一信号发生装置，以及产生包含预制坑的第一信号信号，其基于检测到的反射光指示至少一个预凹坑;第二信号产生装置，用于通过消除阻止从第一信号检测预制坑信号的信号分量产生第二信号;以及预凹坑检测装置，用于至少检测基于第一和第二信号中的至少一个的一个预凹坑。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2005116046A Optical disk device 审中-公开
标题翻译：光盘设备
公开(公告)号：JP2005116046A
公开(公告)日：2005-04-28
申请号：JP2003348189
申请日：2003-10-07
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： HASHIMOTO SEIICHI , NAKAO MASAHITO
IPC分类号： G11B7/005 , G11B7/095
摘要： PROBLEM TO BE SOLVED: To improve reliability in recording/reproduction by accurately detecting whether recording is made to a right track, even if balance is instantaneously and shifted by a large amount.
SOLUTION: An optical disk device reads out address information from an optical disk having an intra track part which is formed between tracks and to which the address information is recorded. The optical disk device is provided with an optical head provided with first and second detectors which are divided in parallel to the track direction and outputs detected signals; an LPP detection difference computing circuit that receives the first and second detected signals outputted from the first and second, respectively, and makes the subtraction at a prescribed ratio to obtain LPP detection signals ; a timing signal generating circuit which outputs recorded information signal timing signals for removing recorded information signal residual noises in the LPP detection signals; and a switching circuit which replaces the parts, corresponding to the recorded information signal timing signals of the LPP detection signals at a prescribed level.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了通过精确地检测是否对右轨道进行记录来提高记录/再现的可靠性，即使平衡被瞬间平移并且偏移很大。解决方案：光盘装置从具有在轨道之间形成的轨道部分的光盘读出地址信息，并且记录地址信息。光盘装置设置有具有与轨道方向平行分割的第一和第二检测器的光学头，并输出检测信号; LPP检测差分计算电路，分别接收从第一和第二输出的第一和第二检测信号，并以规定的比例进行减法以获得LPP检测信号; 定时信号发生电路，输出用于去除LPP检测信号中的记录信息信号残留噪声的记录信息信号定时信号; 以及切换电路，其将与LPP检测信号的记录信息信号定时信号相对应的部分替换为规定的电平。版权所有（C）2005，JPO＆NCIPI

8. 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

9. 发明专利

JP2003051121A Method and device for reproducing address signal 审中-公开
标题翻译：用于复制地址信号的方法和装置
公开(公告)号：JP2003051121A
公开(公告)日：2003-02-21
申请号：JP2001237499
申请日：2001-08-06
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： NAKAO MASAHITO , FURUMIYA SHIGERU , ISHIBASHI HIROMICHI , MINAMINO JUNICHI
IPC分类号： G11B7/24 , G11B7/005 , G11B20/10
CPC分类号： G11B7/0053
摘要： PROBLEM TO BE SOLVED: To provide a signal processing method for stably detecting address information even when the amplitude of a wobble signal is fluctuated due to cross talk from an adjacent groove.
SOLUTION: The differential detection of the reflected light 300 of a laser beam emitted along a groove is carried out by detectors 301 and 302 divided in a disk radial direction. A pulse signal 306 is generated from the rectangular wave region of the differentially detected signal. The pulse signal 306 is sliced at an after-mentioned slice level, and binarized pulse signals 309, 310 are generated. Slice levels 316 and 318 are controlled according to the detection state of the binarized pulse signal so as to detect the binarized pulse signal.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：即使当摆动信号的振幅由于相邻槽的串扰而波动时，也提供用于稳定地检测地址信息的信号处理方法。解决方案：沿着凹槽发射的激光束的反射光300的差分检测由沿盘径向分割的检测器301和302执行。从差分检测信号的矩形波区域产生脉冲信号306。脉冲信号306以后述的限幅电平进行分片，生成二值化的脉冲信号309,310。根据二值化脉冲信号的检测状态来控制切片级别316和318，以检测二值化的脉冲信号。

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