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1. 发明专利

JP2006004626A Recording medium reproducing device and recording medium reproducing method 有权
标题翻译：记录介质再现设备和记录介质再现方法
公开(公告)号：JP2006004626A
公开(公告)日：2006-01-05
申请号：JP2005235167
申请日：2005-08-15
申请人： Sony Corp , ソニー株式会社
发明人： SHIGENOBU MASAHIRO , FUJIMOTO KENSUKE , TODO HIROBUMI
IPC分类号： G11B20/14 , G11B20/10 , G11B20/18
摘要： PROBLEM TO BE SOLVED: To exactly extract the block of data from a reproduction RF signal and to exactly store the extracted data into a prescribed region of a memory. SOLUTION: The reproduction RF signal outputted from an optical pickup 11 is demodulated in a demodulation section 12 and a synchronization signal inserted into the signal is detected. The demodulation section 12 specifies the frame number of a frame currently reproduced by the combination of synchronization patterns and successively stores the demodulated data into the prescribed regions of an SRAM 13 based on the specified frame number. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：从再现RF信号精确提取数据块，并将提取的数据精确地存储到存储器的规定区域中。解决方案：从光拾取器11输出的再现RF信号在解调部分12中被解调，并且检测插入到信号中的同步信号。解调部分12通过同步模式的组合指定当前再现的帧的帧号，并且基于指定的帧号将解调的数据连续地存储到SRAM 13的规定区域中。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2011154770A Device and method for controlling laser power, and optical disk recording device 审中-公开
标题翻译：用于控制激光功率的装置和方法以及光盘记录装置
公开(公告)号：JP2011154770A
公开(公告)日：2011-08-11
申请号：JP2010016983
申请日：2010-01-28
申请人： Sony Corp , ソニー株式会社
发明人： FUJIMOTO KENSUKE
IPC分类号： G11B7/0045 , G11B7/125
摘要： PROBLEM TO BE SOLVED: To provide a device and a method for controlling laser power that does not use a direct current amplifier operating over a wide wideband, and to suppress the manufacturing cost of an optical disk recording device. SOLUTION: The laser power control device (1) includes a control unit (2) for alternately varying recording power of different levels, when controlling the recording power of laser light to be radiated on an optical disk (D); a reproduction unit (4) for reproducing data recorded on the optical disk, with the recording power whose levels are alternately controlled by the control unit; and a calculation unit (7) for calculating optimal recording power by using a reproduction signal of the reproduction unit. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于控制不使用在宽宽带上工作的直流放大器的激光功率的装置和方法，并且抑制光盘记录装置的制造成本。解决方案：激光功率控制装置（1）在控制要在光盘（D）上照射的激光的记录功率时，包括用于交替地改变不同电平的记录功率的控制单元（2）。用于再现记录在光盘上的数据的再现单元（4），其中记录功率的电平由控制单元交替地控制; 以及用于通过使用再现单元的再现信号来计算最佳记录功率的计算单元（7）。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2008004240A Optical disk unit and address detecting method 审中-公开
标题翻译：光盘单元和地址检测方法
公开(公告)号：JP2008004240A
公开(公告)日：2008-01-10
申请号：JP2006175720
申请日：2006-06-26
申请人： Sony Corp , ソニー株式会社
发明人： FUJIMOTO KENSUKE
IPC分类号： G11B7/005
摘要： PROBLEM TO BE SOLVED: To improve follow up characteristic in detecting land prepit LPP and decoding of address information in comparison with a method of binarized threshold feedback, and probability of detecting a correct address even if the threshold deviates from an appropriate value.
SOLUTION: A push-pull signal reproduced from an optical disk is compared with the threshold and binarized. An LPP width of the binarized LPP signal in each measurement interval is measured and stored in a register. An address decoder initially sets a limiting value Wlim to be 1 for judging as noise, and sets 1 by assuming existence of the LPP when the width of LPP is larger than Wlim. Then, the data pattern is decoded. When a correct result of decoding the address is obtained while Wlim is set 1, 2, ... incrementing in order, the decoding of address is finished.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：与二值化阈值反馈的方法相比，提高检测地面预置块LPP的跟踪特性和解码地址信息，以及即使阈值偏离适当的值也可以检测正确的地址。解决方案：将从光盘再现的推挽信号与阈值进行比较并二值化。测量每个测量间隔中二值化LPP信号的LPP宽度并将其存储在寄存器中。地址解码器最初将限制值Wlim设置为1，用于判断为噪声，并且当LPP的宽度大于Wlim时，通过假设LPP的存在来设置1。然后，解码数据模式。当Wlim被设置为1，2，...顺序递增时获得解码地址的正确结果，地址解码结束。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2004213808A Optical recording method and optical recorder 有权
标题翻译：光学记录方法和光学记录仪
公开(公告)号：JP2004213808A
公开(公告)日：2004-07-29
申请号：JP2003001556
申请日：2003-01-07
申请人： Sony Corp , ソニー株式会社
发明人： FUJIMOTO TAKASHI , SHIGENOBU MASAHIRO , ARITOME KENICHIRO , MAEDA YASUAKI , FUJIMOTO KENSUKE , MOTAI HIDEKI
IPC分类号： G11B7/0045 , G11B7/085 , G11B7/125
CPC分类号： G11B7/126 , G11B7/0045
摘要： PROBLEM TO BE SOLVED: To record a video and a sound with proper recording power without interruption by shortening a time for measuring optimum recording power and improving the accuracy of the optimum recording power. SOLUTION: When an optical recording medium is inserted into an optical recorder (step S1), a test writing area OPC (power calibration area) that can be used for an OPC (optimum power calibration) on the optical recording medium is searched, and an optical pickup is made to wait at the place of the test writing area (step S4). When a data recording operation input is received (step S6), an OPC operation is performed at the place (step S7), and when the optimum power is obtained, the optical pickup is moved to a data recording area on the optical recording area (step S10) to record data on the data recording area of the optical recording medium by the optical pickup (step S11). COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：通过缩短用于测量最佳记录功率的时间并提高最佳记录功率的精度来记录具有适当记录功率的视频和声音而不会中断。解决方案：当将光学记录介质插入光学记录器（步骤S1）时，可以搜索可用于光学记录介质上的OPC（最佳功率校准）的测试写入区域OPC（功率校准区域）并且使光学拾取器在测试写入区域的位置处等待（步骤S4）。当接收到数据记录操作输入时（步骤S6），在该处执行OPC操作（步骤S7），并且当获得最佳功率时，将光学拾取器移动到光学记录区域上的数据记录区域步骤S10）通过光学拾取器将数据记录在光学记录介质的数据记录区域上（步骤S11）。版权所有（C）2004，JPO＆NCIPI

5. 发明专利

JP2009087414A Optical pickup, recording/reproducing device, and light quantity control method of recording/reproducing device 审中-公开
标题翻译：光学拾取，记录/再现设备和记录/再现设备的光数量控制方法
公开(公告)号：JP2009087414A
公开(公告)日：2009-04-23
申请号：JP2007253047
申请日：2007-09-28
申请人： Sony Corp , ソニー株式会社
发明人： FUJIMOTO KENSUKE
IPC分类号： G11B7/125 , G11B7/0045
摘要： PROBLEM TO BE SOLVED: To keep each light quantity during recording in desired light quantity even when differential efficiency of a light emitting element changes by being applied, for example, in a phase transmission type optical disk recording/reproducing device with respect to an optical pickup, a recording/reproducing device and a light quantity control method of a recording/reproducing device. SOLUTION: The light quantity of laser beams is controlled by a feedback loop to monitor a change in an output voltage of a loop filter provided in the feedback loop, thereby correcting the quantity of outgoing light of the laser beams. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：即使在发光元件的差分效率通过例如相位传输型光盘记录/再现装置中的相对于光拾取器，记录/再现装置和记录/再现装置的光量控制方法。解决方案：激光束的光量由反馈回路控制，以监测设置在反馈回路中的环路滤波器的输出电压的变化，从而校正激光束的出射光量。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2007305229A Optical disk device, and land pre-pit reproducing method 审中-公开
标题翻译：光盘设备和土地预处理方法
公开(公告)号：JP2007305229A
公开(公告)日：2007-11-22
申请号：JP2006132800
申请日：2006-05-11
申请人： Sony Corp , ソニー株式会社
发明人： KANENAGA JUNICHI , FUJIMOTO KENSUKE
IPC分类号： G11B7/005 , G11B20/10
CPC分类号： G11B7/0053
摘要： PROBLEM TO BE SOLVED: To improve detection accuracy of land pre-pit formed in an optical disk.
SOLUTION: An optical head part 22 generates a photodetecting signal based on reflected light from an optical disk 10. A signal generating part 30 generates a pre-pit component signal SPT corresponding to land pre-pit based on photodetecting signals Sm1, Sm2. A binarization level signal output part 31 outputs binarization level signal VSL. A binarization processing part 32 compares the signal SPT with the signal VSL and generates a pre-pit detecting signal DPT indicating the prepared result. A decode part 33 obtains position information AR from the signal DPT. A pulse counting part 34 counts pulses of the signal DPT with a period unit based on the position information AR. A control part 40 generates a binarization level control signal CTL based on a count value NP obtained by the counting part 34, supplies it to the binarization level signal output part 31, and controls a signal level of a signal VSL so that an average value of the count values NP becomes a predetermined value.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提高在光盘中形成的焊盘预制凹坑的检测精度。解决方案：光头部分22基于来自光盘10的反射光产生光电检测信号。信号产生部件30基于光检测信号Sm1，Sm2产生对应于焊盘预凹坑的预凹坑分量信号SPT 。二值化电平信号输出部31输出二值化电平信号VSL。二值化处理部32将信号SPT与信号VSL进行比较，并生成表示准备结果的预凹坑检测信号DPT。解码部分33从信号DPT获得位置信息AR。脉冲计数部分34基于位置信息AR以周期单位计数信号DPT的脉冲。控制部分40基于由计数部分34获得的计数值NP产生二值化电平控制信号CTL，将其提供给二值化电平信号输出部分31，并且控制信号VSL的信号电平，使得平均值计数值NP变为预定值。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2006236576A Apparatus and method for evaluating reproduced signal, reproducing apparatus and method, and recording apparatus and method 有权
标题翻译：用于评估再现信号的装置和方法，再现装置和方法以及记录装置和方法
公开(公告)号：JP2006236576A
公开(公告)日：2006-09-07
申请号：JP2006120934
申请日：2006-04-25
申请人： Sony Corp , ソニー株式会社
发明人： FUJIMOTO KENSUKE , YOSHIMURA SHUNJI , FUKUMOTO ATSUSHI , TANAKA YASUTO
IPC分类号： G11B20/14 , G11B7/0045 , G11B7/005 , G11B20/10 , G11B20/18
摘要： PROBLEM TO BE SOLVED: To provide an apparatus and a method for speedily and adequately evaluating quality of a reproduced signal when using a maximum likelihood decoder for converting the signal reproduced from a recording medium into a binary signal. SOLUTION: Based on data arrays of two binary data outputted from a "Viterbi" decoder, SAM values are secured by selecting any of path-metric differential values (00), (11) being the difference between the two values compared when renewing path-metric values PMM (00), (11) outputted from the "Viterbi" decoder. The minimum SAM value for an ideally-reproduced signal is outputted from a constant generating circuit 311, and the difference between the output value and the inputted SAM value is squared by a squaring circuit 312 and supplied to an averaging circuit 315. On the other hand, an output value from the canstant generating circuit 311 is compared with the input SAM value by a comparator 313, and if the SAM values are verified as valid, and yet, if the SAM values coincide with the equation (input SAM values)≤(output of the constant generating circuit 311), then output values of the the squaring circuit 312 are averaged by the averaging circuit 315, and the average value is outputted as the reproduced signal evaluation value. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于在使用用于将从记录介质再现的信号转换为二进制信号的最大似然解码器时，快速和充分地评估再现信号的质量的装置和方法。解决方案：基于从“维特比”解码器输出的两个二进制数据的数据阵列，SAM值通过选择路径度量差分值（00），（11）中的任一个来确保，更新从“维特比”解码器输出的路径度量值PMM（00），（11）。理想再现信号的最小SAM值从常数发生电路311输出，输出值与输入的SAM值之间的差由平方电路312平方并提供给平均电路315.另一方面，通过比较器313将来自不稳定发生电路311的输出值与输入的SAM值进行比较，并且如果SAM值被验证为有效，并且如果SAM值与等式（输入SAM值）≤（常数发生电路311的输出），则平均电路315的平均电路312的输出值被平均化，平均值被输出作为再现信号评估值。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2006236575A Apparatus and method for evaluating reproduced signal, reproducing apparatus and method, and recording apparatus and method 有权
标题翻译：用于评估再现信号的装置和方法，再现装置和方法以及记录装置和方法
公开(公告)号：JP2006236575A
公开(公告)日：2006-09-07
申请号：JP2006120933
申请日：2006-04-25
申请人： Sony Corp , ソニー株式会社
发明人： FUJIMOTO KENSUKE , YOSHIMURA SHUNJI , FUKUMOTO ATSUSHI , TANAKA YASUTO
IPC分类号： G11B20/14 , G11B7/0045 , G11B7/005 , G11B20/10 , G11B20/18
摘要： PROBLEM TO BE SOLVED: To provide an apparatus and a method for speedily and adequately evaluating quality of a reproduced signal when using a maximum likelihood decoder for binarizing the signal reproduced from a recording medium. SOLUTION: Based on data arrays of two binary data outputted from a "Viterbi" decoder, SAM values are secured by selecting any of path-metric differential values (00), (11) being the difference between the two values compared when renewing path-metric values PMM (00), (11) outputted from the "Viterbi" decoder. The minimum SAM value for an ideally-reproduced signal is outputted from a constant generating circuit 311, and the difference between the output value and the inputted SAM value is squared by a squaring circuit 312 and supplied to an averaging circuit 315. On the other hand, an output value from the canstant generating circuit 311 is compared with the input SAM value by a comparator 313, and if the SAM values are verified as valid, and if the SAM values coincide with the equation (input SAM values)≤(output of the constant generating circuit 311), then output values of the the squaring circuit are averaged by the averaging circuit 315, and the average value is outputted as the reproduced signal evaluation value. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于在使用用于使从记录介质再现的信号二值化的最大似然解码器时，快速和充分地评估再现信号的质量的装置和方法。解决方案：基于从“维特比”解码器输出的两个二进制数据的数据阵列，SAM值通过选择路径度量差分值（00），（11）中的任一个来确保，更新从“维特比”解码器输出的路径度量值PMM（00），（11）。理想再现信号的最小SAM值从常数发生电路311输出，输出值与输入的SAM值之间的差由平方电路312平方并提供给平均电路315.另一方面，通过比较器313将来自不稳定发生电路311的输出值与输入的SAM值进行比较，并且如果SAM值被验证为有效，并且如果SAM值与等式（输入SAM值）≤（输入的SAM值）≤ 常数发生电路311），则平均电路315对平方电路的输出值进行平均，并将平均值作为再现信号评估值输出。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2000311350A AUTOMATIC GAIN CONTROLLER, AUTOMATIC GAIN CONTROL METHOD AND OPTICAL DISK DEVICE 失效
公开(公告)号：JP2000311350A
公开(公告)日：2000-11-07
申请号：JP11651299
申请日：1999-04-23
申请人： SONY CORP
发明人： FUJIMOTO KENSUKE
IPC分类号： G11B20/10 , G11B7/005 , H03G3/20 , H03G3/30
摘要： PROBLEM TO BE SOLVED: To perform a correct amplitude correction by suppressing the effect of a noise component to be included in a reproduced signal and correctly detecting the amplitude of the reproduced signal and thereby to perform a correct MTF evaluation. SOLUTION: In this automatic gain controller, the peak level of the reproduced signal is recorded by a peak hold 3 and the bottom level of the reproduced signal is recorded by a bottom hole 5. The reproduced signal whose signal level is within a range from (the peak level-a constant A) to the peak level is extracted by an upper side envelope extracting means 4 and the reproduced signal whose signal level is within a range from the bottom level to (the bottom level + a constant A) is extracted by a lower envelope extracting means 6 and the subtraction between these signals is performed in a subtracting circuit 7. Thereafter, the output signal of the subtracting circuit 7 is substrated from a reference amplitude signal which is to be transmitted from a reference amplitude generating means 9 by a subtracting circuit 8 and then the amplitude of the reproduced signal is corrected by controlling the gain of a variable amplifier 2 while using the output of the circuit 8 as a gain control signal.

10. 发明专利

JPH11339395A OPTICAL DISK DEVICE, RECORDING METHOD FOR OPTICAL DISK AND REPRODUCING METHOD FOR OPTICAL DISK 失效
公开(公告)号：JPH11339395A
公开(公告)日：1999-12-10
申请号：JP14440798
申请日：1998-05-26
申请人： SONY CORP
发明人： FUJIMOTO KENSUKE , SHIGENOBU MASAHIRO
IPC分类号： G11B20/10 , G11B7/00 , G11B7/005
摘要： PROBLEM TO BE SOLVED: To enable making a digital circuit with simple constitution and to enable compensating a DC level accurately by applying a read-only optical disk, a phase variation type optical disk, and the like to an optical disk device to be accessed, in an optical disk device, a recording method for an optical disk, and a reproducing method for an optical disk. SOLUTION: A DC level of a reproduced signal DMO is compensated by using jointly compensation of a DC level basing on an average value of a peak value and a bottom value of the reproduced signal DMO and compensation of a DC level based on a DC level of a signal in which the reproduced signal DMO is binarized. By this simple constitution, a digital circuit can be made, and a DC level can be accurately compensated.

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