专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2008027501A Optical disk and optical disk unit 审中-公开
标题翻译：光盘和光盘单元
公开(公告)号：JP2008027501A
公开(公告)日：2008-02-07
申请号：JP2006197675
申请日：2006-07-20
申请人： Sanyo Electric Co Ltd , 三洋電機株式会社
发明人： NAKAO KENJI , NAKATANI MORIO
IPC分类号： G11B7/0045 , G11B7/125
CPC分类号： G11B7/1267 , G11B7/0045 , G11B7/00736
摘要： PROBLEM TO BE SOLVED: To provide an optical disk and optical disk unit which can maintain good characteristic of reproducing recording marks even if the number of reproducing (trace) reaches a considerable number. SOLUTION: The optical disk 100 holds a correction coefficient ν in a lead in area. The lead in correction coefficient ν is read out when the optical disk 100 is loaded and stored in an inner memory of a controller 111. In OPC operation, the controller 111 executes trial writing on the optical disk, and obtains a recording laser power Pmax with which PRSNR becomes the best, and further sets up the recording laser power Ppot for the optical disk by multiplying the obtained recording laser power with the correction coefficient ν. The correction coefficient ν corrects the recording laser power Pmax for improving durability to the trace number of the recorded marks so that the recording with the recording laser power Ppot improves durability to the trace number of the recorded marks. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种光盘和光盘单元，即使再现（迹线）的数量达到相当数量，该光盘和光盘单元也能保持再现记录标记的良好特性。解决方案：光盘100将校正系数ν保持在导入区域中。当光盘100被装载并存储在控制器111的内部存储器中时，读出校正系数ν的导数。在OPC操作中，控制器111对光盘执行试写，并且获得具有 PRSNR变得最好，并且通过将获得的记录激光功率与校正系数ν相乘来进一步设置用于光盘的记录激光功率Ppot。校正系数ν校正记录激光功率Pmax，以提高对痕迹数目的记录标记的耐久性，使得利用记录激光功率Ppot的记录提高对记录标记的痕迹数目的耐久性。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2006012254A Optical disk device and recording medium 有权
标题翻译：光盘设备和记录介质
公开(公告)号：JP2006012254A
公开(公告)日：2006-01-12
申请号：JP2004185612
申请日：2004-06-23
申请人： Sanyo Electric Co Ltd , 三洋電機株式会社
发明人： NAKAO KENJI , NAKATANI MORIO
IPC分类号： G11B7/125 , G11B7/00 , G11B7/0045
CPC分类号： G11B7/1267
摘要： PROBLEM TO BE SOLVED: To provide an optical disk device permitting smooth and proper power setting also by shifting an outgoing wavelength, and to provide the structure of a recording medium necessary therefor. SOLUTION: A wavelength compensation table in which laser wavelengths are correlated with compensation coefficients is recorded on a disk with wobbles, pits and the like. A controller 111 reads out the wavelength compensation table from the disk and holds it in a built-in memory at the time of disk loading. The controller determines a wavelength λ1 of an outgoing laser beam based on temperature information supplied from a temperature sensor 112 at the time of OPC (Optimum Power Control), and obtains the compensation coefficients α1, α0 corresponding to the wavelength λ1 and a reference wavelength λ0, respectively, from the wavelength compensation table. Then, the controller calculates Pw1 = Pw0 x (α1/α0) from primary power Pw0 and the compensation coefficients α1, α0, and primary power Pw1 at the time of OPC is set. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种通过移出输出波长来提供平滑和适当的功率设置的光盘装置，并提供所需的记录介质的结构。解决方案：激光波长与补偿系数相关的波长补偿表被记录在具有摆动，凹坑等的盘上。控制器111从盘读出波长补偿表，并在盘装载时将其保持在内置存储器中。控制器基于在OPC（最佳功率控制）时从温度传感器112提供的温度信息确定出射激光束的波长λ1，并且获得对应于波长λ1的补偿系数α1，α0和参考波长λ0 ，分别来自波长补偿表。然后，控制器从主功率Pw0计算Pw1 = Pw0×（α1/α0），并且在OPC设定时补偿系数α1，α0和主功率Pw1。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2005310351A Optical disk drive 审中-公开
标题翻译：光盘驱动器
公开(公告)号：JP2005310351A
公开(公告)日：2005-11-04
申请号：JP2005013345
申请日：2005-01-20
申请人： Sanyo Electric Co Ltd , 三洋電機株式会社
发明人： HIROSE KEN , MAMIYA NOBORU , NAKAO KENJI , KAWAKAMI KOICHI
IPC分类号： G11B7/00 , G11B7/004 , G11B7/0045 , G11B7/12 , G11B7/125
CPC分类号： G11B7/1267 , G11B7/0045
摘要： PROBLEM TO BE SOLVED: To smoothly and appropriately adjust the recording laser power while suppressing the processing load when recording. SOLUTION: When the system is in an intermittent standby mode (t1-t2), R-OPC is performed, and the recording laser power Pws is adjusted/reset. The succeeding recording is made with the reset recording laser power Pws (t2-t3). Further, thereafter, when the system comes again in the intermittent standby mode (t3-t4), R-OPC is performed, and the recording laser power Pws is adjusted/reset. Then, the succeeding recording is made with the reset laser power Pws (t4-t5). After this, if such recording continues for a period exceeding the maximum standby period Ts (t5), the recording is interrupted and the system is set to a recording standby state(t5-t6). Then, R-OPC is performed, and the recording laser power Pws is adjusted/reset. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：在记录时抑制处理负荷的同时平滑且适当地调节记录激光功率。
解决方案：当系统处于间歇待机模式（t1-t2）时，执行R-OPC，并且记录激光功率Pws被调整/复位。用复位记录激光功率Pws（t2-t3）进行后续记录。此后，当系统再次进入间歇待机模式（t3-t4）时，执行R-OPC，并且记录激光功率Pws被调整/复位。然后，利用复位激光功率Pws（t4-t5）进行后续的记录。之后，如果这种记录持续超过最大待机时间Ts（t5）的时间，则记录被中断并且系统被设置为记录待机状态（t5-t6）。然后，执行R-OPC，并且调整/复位记录激光功率Pws。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2005216422A Optical recording/reproducing device 审中-公开
标题翻译：光学记录/再现设备
公开(公告)号：JP2005216422A
公开(公告)日：2005-08-11
申请号：JP2004023893
申请日：2004-01-30
申请人： Sanyo Electric Co Ltd , 三洋電機株式会社
发明人： NAKAO KENJI , MAMIYA NOBORU , HIROSE KEN
IPC分类号： G11B7/0045 , G11B7/007 , G11B7/125
CPC分类号： G11B7/1267 , G11B7/00736
摘要： PROBLEM TO BE SOLVED: To secure the reliability of recorded data and to increase media using efficiency by adjusting laser power even after a laser power adjusting area is used up.
SOLUTION: Until PCA is used up, laser power is adjusted by using the PCA. After the PCA is used up, additional PCA is secured in a recording start position, and laser power is adjusted by using the additional PCA. When the additional PCA is secured, in a physical format, there is an additional PCA area between a currently recorded information file and a last recorded information file. In this case, information written by trial in the additional PCA area is not regarded as an information file and, by excluding this, PMA information is generated only from the currently recorded information file to be recorded. Thus, the additional PCA is not logically present on a disk, and the problem of mistakenly reproducing the additional PCA during reproduction is prevented.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了确保记录数据的可靠性，并且即使在激光功率调整区域被消耗之后也通过调节激光功率来增加介质的使用效率。
解决方案：直到PCA用完，激光功率通过使用PCA进行调整。 PCA耗尽后，附加的PCA固定在记录开始位置，激光功率通过使用附加PCA进行调整。当附加PCA以物理格式被保护时，在当前记录的信息文件和最后记录的信息文件之间存在另外的PCA区域。在这种情况下，通过试用在附加PCA区域中写入的信息不被视为信息文件，并且通过排除该信息文件，仅从当前记录的要记录的信息文件生成PMA信息。因此，附加PCA不是逻辑上存在于盘上，并且防止在再现期间错误地再现附加PCA的问题。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2005209287A Laser power adjusting method and optical recording and reproducing apparatus 有权
标题翻译：激光功率调节方法和光学记录和再现装置
公开(公告)号：JP2005209287A
公开(公告)日：2005-08-04
申请号：JP2004014983
申请日：2004-01-22
申请人： Sanyo Electric Co Ltd , 三洋電機株式会社
发明人： MAMIYA NOBORU , HIROSE KEN , NAKAO KENJI
IPC分类号： G11B7/0045 , G11B7/125
CPC分类号： G11B7/1267
摘要： PROBLEM TO BE SOLVED: To provide a laser power adjusting method and an optical recording and reproducing apparatus in which optimum laser power can be set smoothly and appropriately with less number of times of test writing. SOLUTION: A method used for a laser power adjusting circuit comprises steps S103, S106 in which Sn=m(Pwn)×Pwn 2 is obtained from two or more kinds of laser power Pwn set for test writing and modulation degree m(Pwn) of reflected light intensity when test writing is performed for each laser power Pwn, and a step S107 in which laser power Pwth is obtained by which the modulation degree becomes zero when linear approximation is made for the relation property between the obtained Sn and Pwn. Optimum laser power is set based on this laser power Pwth. Further, the method comprises a step S108 in which optimum laser power is obtained from a target γvalue of the disk by calculating Pw=Pwth×[1+1/(γ+1)]. The target γvalue is obtained from ADIP of the disk. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种激光功率调节方法和光学记录和再现装置，其中可以以较少次的测试写入平滑且适当地设置最佳激光功率。解决方案：用于激光功率调节电路的方法包括步骤S103，S106，其中Sn = m（Pwn）×Pwn 2 由两种或多种激光功率Pwn 对于每个激光功率Pwn进行测试写入时的反射光强度的测试写入和测量写入和调制度m（Pwn），以及步骤S107，其中获得当对于关系进行线性近似时调制度变为零的激光功率Pwth 获得的Sn和Pwn之间的属性。基于该激光功率Pwth设置最佳激光功率。此外，该方法包括步骤S108，其中通过计算Pw = Pwth×[1 + 1 /（γ+ 1）]从盘的目标γ值获得最佳激光功率。目标γ值从盘的ADIP获得。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2005085415A Disk recording and reproducing device 审中-公开
标题翻译：磁盘记录和再现设备
公开(公告)号：JP2005085415A
公开(公告)日：2005-03-31
申请号：JP2003319109
申请日：2003-09-10
申请人： Sanyo Electric Co Ltd , 三洋電機株式会社
发明人： NAKAO KENJI , MAMIYA NOBORU , TODA HIDEJI , GOTO TOSHIHIRO , SANO AKIO
IPC分类号： G11B7/24 , G11B7/085 , G11B20/10 , G11B21/08
摘要： PROBLEM TO BE SOLVED: To dynamically locate a recording and reproducing head almost in the center of a burst area to smoothly reproduce the burst area, even with an inexpensive driving means, such as a DC motor. SOLUTION: After an optical head accesses a groove 101 nearest to the burst area, a thread motor 30 is driven to move the optical head in the burst area 103 direction and to simultaneously start the clocking of a timer. The duration T until a beam spot escapes from the burst area 103 is measured, the duration T is multiplied by 3/5 to set as seek time T0. After the optical head accesses the groove 101 nearest to the burst area when the burst area 103 is reproduced, the thread motor 30 is driven with the same driving force as the above to shift the optical head by the seek time T0 in the burst area 103 direction. This allows the beam spot to be located almost in the center of the burst area 103, and after that, the burst area 103 to be reproduced. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使使用诸如DC电动机的廉价的驱动装置，也可以将突发区域的中心附近的记录和再现磁头动态地定位以平滑地再现突发区域。解决方案：在光学头访问最接近突发区域的凹槽101之后，驱动螺纹马达30以在突发区域103方向上移动光学头并同时开始定时器的计时。测量直到波束点从脉冲串区域103逸出的持续时间T，将持续时间T乘以3/5以设置为寻道时间T0。在重放突发区域103之后光头访问最接近突发区域的凹槽101之后，以与上述相同的驱动力驱动螺纹马达30，以将光头移动到突发区域103中的寻道时间T0 方向。这允许光束点几乎位于突发区域103的中心，之后是要再现的突发区域103。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2004118924A Information recording/reproducing device and information reproducing method 有权
公开(公告)号：JP2004118924A
公开(公告)日：2004-04-15
申请号：JP2002279810
申请日：2002-09-25
申请人： Sanyo Electric Co Ltd , Tsuru Gakuen , 三洋電機株式会社 , 学校法人鶴学園
发明人： FURUKAWA TERUO , TAKAHASHI SEIICHIRO , TSUCHIYA YOICHI , NAKAO KENJI
IPC分类号： G11B20/10 , G11B7/005 , G11B20/14 , G11B20/18
摘要： PROBLEM TO BE SOLVED: To obtain an information recording/reproducing device and an information reproducing method, by which data are reproducible comparatively highly precisely even though the intersymbol interference is furthermore developed.
SOLUTION: Test data are recorded at the top position of a recording unit. At the reproduction, the impulse response h(t) of the recording/reproducing system (including disk) is derived by reproducing the test data at first. A reproduction RF signal of each of sample data in a sample data memory 17 is presumed on the basis of this impulse response h(t), and data of sample value which the reproduction RF signal is subjected to A/D conversion, are transmitted to a comparison circuit 14 from a presumed pattern producing circuit 16. By the comparison circuit 14, the difference between these sample value data and sample value data of the reproduction RF signal actually reproduced from the disk is calculated to specify such sample data that this difference becomes minimum. The specified sample data are outputted as the reproduced data by a reproduction data selecting circuit 18.
COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2003107537A DIFFRACTION DEVICE AND OPTICAL PICKUP AND OPTICAL DISK PLAYER 审中-公开
公开(公告)号：JP2003107537A
公开(公告)日：2003-04-09
申请号：JP2001304427
申请日：2001-09-28
申请人： SANYO ELECTRIC CO
发明人： NAKAO KENJI , YAMADA MASATO , KAJIYAMA SEIJI
IPC分类号： G02B5/18 , G02F1/17 , G11B7/09 , G11B7/135
摘要： PROBLEM TO BE SOLVED: To play a plurality of optical disks whose reproducing systems and recording density are different with a piece of an optical pickup. SOLUTION: In this player, the diffraction pattern 13 of a diffraction device 3 diffracting light beams emitted from a semiconductor laser 2 is formed by using a thin film which has a electrically resisting property and translucency and a film which has a light shielding property by heat. When a voltage is applied to the diffraction device 3, a diffraction pattern part 13 consisting of these thin films generates heat and the films being in contact with the pattern part 13 exhibits the light shielding properties to realize a diffraction grating. Thus, diffracted light beams suitable for playing an optical disk are generated by controlling a voltage to be applied to the diffraction device 3 in this manner.

9. 发明专利

JP2002288902A MAGNETO-OPTICAL DISK DEVICE 失效
公开(公告)号：JP2002288902A
公开(公告)日：2002-10-04
申请号：JP2001091857
申请日：2001-03-28
申请人： SANYO ELECTRIC CO
发明人： TADA KOICHI , TAKAHASHI SEIICHIRO , NAKAO KENJI , TSUCHIYA YOICHI
IPC分类号： G11B11/105
摘要： PROBLEM TO BE SOLVED: To provide a magneto-optical disk device in which a signal is exactly reproduced from a magneto-optical recording medium by irradiating the medium with a pulsed light. SOLUTION: In the magneto-optical disk device 100, an optical head 101 irradiates the magneto-optical recording medium 10 with the pulsed light in synchronization with a delay clock having a phase changed from that of a clock CLK. Then, an amplitude detecting circuit 108 detects the amplitude of a reproduced signal which is detected by using the pulsed light irradiated in synchronization with the delay clock having its phase changed, and outputs the detection result to a CPU 109. The CPU 109 decides the amount of delay of the delay clock or producing the pulsed light so that the amplitude of the reproduced signal is maximized.

10. 发明专利

JP2001243725A DIGITAL DISK 失效
公开(公告)号：JP2001243725A
公开(公告)日：2001-09-07
申请号：JP2001011955
申请日：2001-01-19
申请人： SANYO ELECTRIC CO
发明人： HORI YOSHIHIRO , MATSUYAMA HISASHI , KUNIHAZAMA AKIOMI , ITO NOBURO , TAKAHASHI SEIICHIRO , HIOKI TOSHIAKI , ASANO KENJI , MAMIYA NOBORU , UCHIHARA KAJI , NAKAO KENJI , WASHIMI SATOSHI , TORASAWA KENJI
IPC分类号： G11B20/14 , G11B7/004 , G11B20/12 , H03M7/14
摘要： PROBLEM TO BE SOLVED: To provide a digital disk recorded with digital data in such a manner that the digital data may be reproduced by suppressing low-frequency components. SOLUTION: A digital disk 10 has intermittently disposed plural data areas. Base data is divided to modulation units Xi (i is a natural number, 1

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式