公开(公告)号：US5930225A

公开(公告)日：1999-07-27

申请号：US955152

申请日：1997-10-21

申请人： Takashi Ishida ,  Mamoru Shoji ,  Shunji Ohara ,  Shinichi Konishi ,  Yoshito Aoki ,  Yoshiyuki Miyabata ,  Yuji Hisakado ,  Hironori Deguchi

发明人： Takashi Ishida ,  Mamoru Shoji ,  Shunji Ohara ,  Shinichi Konishi ,  Yoshito Aoki ,  Yoshiyuki Miyabata ,  Yuji Hisakado ,  Hironori Deguchi

IPC分类号： G11B7/0037 ,  G11B7/005 ,  G11B7/007 ,  G11B7/24038 ,  G11B20/12 ,  G11B27/32 ,  G11B7/24

CPC分类号： G11B7/24038 ,  G11B27/329 ,  G11B7/0037 ,  G11B7/00736 ,  G11B7/00745 ,  G11B20/1217 ,  G11B2020/1228 ,  G11B2020/1288 ,  G11B2220/215 ,  G11B2220/237 ,  G11B7/005

摘要： A two-layer optical disk has a first layer of a disk shaped recording medium for storing data and a second layer of a disk shaped recording medium placed over the first layer for storing data. Data blocks A, B, C are stored in the first layer in said order. Similarly, data blocks X, Y, Z are stored in the second layer in said order. When reading the data from the two-layer optical disk, the data blocks are read in the order of A, X, B, Y, C, Z.

摘要翻译： 双层光盘具有用于存储数据的盘形记录介质的第一层和放置在第一层上用于存储数据的盘形记录介质的第二层。 数据块A，B，C以所述次序存储在第一层中。 类似地，数据块X，Y，Z按照所述次序存储在第二层中。 从双层光盘读取数据时，按照A，X，B，Y，C，Z的顺序读取数据块。

公开(公告)号：US5729525A

公开(公告)日：1998-03-17

申请号：US666945

申请日：1996-06-20

申请人： Takashi Ishida ,  Mamoru Shoji ,  Shunji Ohara ,  Shinichi Konishi ,  Yoshito Aoki ,  Yoshiyuki Miyabata ,  Yuji Hisakado ,  Hironori Deguchi

发明人： Takashi Ishida ,  Mamoru Shoji ,  Shunji Ohara ,  Shinichi Konishi ,  Yoshito Aoki ,  Yoshiyuki Miyabata ,  Yuji Hisakado ,  Hironori Deguchi

IPC分类号： G11B7/0037 ,  G11B7/005 ,  G11B7/007 ,  G11B7/24038 ,  G11B20/12 ,  G11B27/32 ,  G11B7/00

CPC分类号： G11B7/24038 ,  G11B27/329 ,  G11B7/0037 ,  G11B7/00736 ,  G11B7/00745 ,  G11B20/1217 ,  G11B2020/1228 ,  G11B2020/1288 ,  G11B2220/215 ,  G11B2220/237 ,  G11B7/005

摘要： A two-layer optical disk has a first layer of a disk shaped recording medium for storing data and a second layer of a disk shaped recording medium placed over the first layer for storing data. Data blocks A, B, C are stored in the first layer in said order. Similarly, data blocks X, Y, Z are stored in the second layer in said order. When reading the data from the two-layer optical disk, the data blocks are read in the order of A, X, B, Y, C, Z.

公开(公告)号：USRE39952E1

公开(公告)日：2007-12-25

申请号：US11223909

申请日：1999-08-20

申请人： Chikashi Inokuchi ,  Shigeru Furumiya ,  Yoshiyuki Miyabata ,  Yuji Hisakado ,  Atsushi Miyazaki ,  Toshiya Akagi

发明人： Chikashi Inokuchi ,  Shigeru Furumiya ,  Yoshiyuki Miyabata ,  Yuji Hisakado ,  Atsushi Miyazaki ,  Toshiya Akagi

IPC分类号： G11B7/00

CPC分类号： G11B7/126 ,  G11B7/0045 ,  G11B7/0053 ,  G11B7/0055 ,  G11B7/0062 ,  G11B7/00718 ,  G11B7/1263

摘要： A power control device for controlling a power of a light source of an optical beam directed to an optical medium. The power control device includes a reflected light detector for detecting reflected light from the optical medium when irradiated by an optical beam which is following a track; an arithmetic unit for calculating from the reflected light a transmissivity of light transmitted from a disk surface to a recording layer or an amount of directed light on the recording layer of the medium; and power control means for controlling the power of the light source for emission based on a calculation result produced by the arithmetic unit.

摘要翻译： 一种用于控制指向光学介质的光束的光源的功率的功率控制装置。 功率控制装置包括反射光检测器，用于当由跟随轨道的光束照射时检测来自光学介质的反射光; 用于从反射光计算从盘表面传输到记录层的光的透射率或介质的记录层上的定向光量的运算单元; 以及功率控制装置，用于基于由运算单元产生的计算结果来控制用于发射的光源的功率。

公开(公告)号：US06621779B1

公开(公告)日：2003-09-16

申请号：US09763277

申请日：2001-05-11

申请人： Chikashi Inokuchi ,  Shigeru Furumiya ,  Yoshiyuki Miyabata ,  Yuji Hisakado ,  Atsushi Miyazaki ,  Toshiya Akagi

发明人： Chikashi Inokuchi ,  Shigeru Furumiya ,  Yoshiyuki Miyabata ,  Yuji Hisakado ,  Atsushi Miyazaki ,  Toshiya Akagi

IPC分类号： B11B700

CPC分类号： G11B7/126 ,  G11B7/0045 ,  G11B7/0053 ,  G11B7/0055 ,  G11B7/0062 ,  G11B7/00718 ,  G11B7/1263

摘要： A power control device for controlling a power of a light source of an optical beam directed to an optical medium. The power control device includes a reflected light detector for detecting reflected light from the optical medium when irradiated by an optical beam which is following a track; an arithmetic unit for calculating from the reflected light a transmissivity of light transmitted from a disk surface to a recording layer or an amount of directed light on the recording layer of the medium; and power control means for controlling the power of the light source for emission based on a calculation result produced by the arithmetic unit.

摘要翻译： 一种用于控制指向光学介质的光束的光源的功率的功率控制装置。 功率控制装置包括反射光检测器，用于当由跟随轨道的光束照射时检测来自光学介质的反射光; 用于从反射光计算从盘表面传输到记录层的光的透射率或介质的记录层上的定向光量的运算单元; 以及功率控制装置，用于基于由运算单元产生的计算结果来控制用于发射的光源的功率。

公开(公告)号：US06339579B1

公开(公告)日：2002-01-15

申请号：US09287338

申请日：1999-04-07

申请人： Yuichi Kamioka ,  Kenji Koishi ,  Yoshiyuki Miyabata ,  Naoyuki Nakamura ,  Kenichi Tatehara ,  Ikuo Hidaka ,  Kiyoshi Nakamori

发明人： Yuichi Kamioka ,  Kenji Koishi ,  Yoshiyuki Miyabata ,  Naoyuki Nakamura ,  Kenichi Tatehara ,  Ikuo Hidaka ,  Kiyoshi Nakamori

IPC分类号： G11B700

CPC分类号： G11B7/126 ,  H01S5/042 ,  H01S5/0683 ,  H01S5/0687

摘要： In an optical disc apparatus, a semiconductor SLD driving device is mounted on an optical pickup in order to realize a high speed switching of drive current for a semiconductor laser diode (SLD), necessary for recording data. The SLD is placed. within 5 cm from the SLD driving device. The driving device becomes a heat source due to driving current of the SLD, and increases a temperature of the optical pickup. Since the temperature rises proportionally to power consumption, power saving is required. A voltage supplied to the driving device is controlled to be a minimum level necessary for keeping the driving device still working on basic functions. The SLD driving device is mounted to the optical pickup, and this driving device handles N pieces of input signals for setting semiconductor laser power and N pieces of switch-timing-input-signals for selecting respective input signals. A supplied voltage is controlled so that a voltage supplied to the output section of the driving device is a minimum value necessary for keeping the output section still operating. A power source is placed outside of the pickup.

摘要翻译： 在光盘装置中，半导体SLD驱动装置安装在光学拾取器上，以实现用于记录数据所需的用于半导体激光二极管（SLD）的驱动电流的高速切换。 放置SLD。 距离SLD驱动装置5厘米以内。 驱动装置由于SLD的驱动电流而成为热源，并且提高了光学拾取器的温度。 由于温度与功耗成比例上升，因此需要省电。 被提供给驱动装置的电压被控制为使驱动装置保持基本功能所必需的最低水平。 SLD驱动装置安装在光拾取器上，该驱动装置处理N条输入信号以设置半导体激光功率，并且N条开关定时输入信号用于选择各个输入信号。 控制供电电压，使得提供给驱动装置的输出部分的电压是保持输出部分仍然工作所需的最小值。 电源放置在拾音器外面。

公开(公告)号：US06728178B2

公开(公告)日：2004-04-27

申请号：US09983402

申请日：2001-10-24

申请人： Kenji Koishi ,  Yoshiyuki Miyabata ,  Makoto Usui ,  Kohjyu Konno ,  Yasuhiro Ueki ,  Tomonori Ueno ,  Yutaka Osada ,  Toru Fujimoto

发明人： Kenji Koishi ,  Yoshiyuki Miyabata ,  Makoto Usui ,  Kohjyu Konno ,  Yasuhiro Ueki ,  Tomonori Ueno ,  Yutaka Osada ,  Toru Fujimoto

IPC分类号： H01S310

CPC分类号： G11B7/1263 ,  G11B7/1267

摘要： Playback signal amplitude drops and continuity of the signal track amplitude is lost at the beginning the data recording area when data is incrementally written to optical discs such as DVD-R or DVD-RW media. Feed-forward control quickly settles semiconductor laser recording power to the target power level immediately after an incremental recording starts. While recording continues, feedback control maintains laser power at a desired recording power level even when the required current supply varies due to the temperature characteristics of the semiconductor laser when recording lasts for an extended period of time. A semiconductor laser control method and semiconductor laser control device thereby maintain laser power at a stable target recording power level quickly and for as long as recording continues.

摘要翻译： 当数据被递增地写入诸如DVD-R或DVD-RW光盘的光盘时，数据记录区开始时，回放信号幅度下降和信号轨迹幅度的连续性丢失。 增量记录开始后，前馈控制可以快速将半导体激光记录功率稳定在目标功率水平。 在继续记录的同时，即使当所需的电流源由于半导体激光器的温度特性在长时间持续时的温度特性而变化时，反馈控制将激光功率维持在期望的记录功率水平。 半导体激光器控制方法和半导体激光器控制装置能够使激光功率保持在稳定的目标记录功率水平，并且只要持续进行记录。

公开(公告)号：US06930968B2

公开(公告)日：2005-08-16

申请号：US09811033

申请日：2001-03-16

申请人： Yuichi Kamioka ,  Toshiya Akagi ,  Yoshiyuki Miyabata ,  Yuichi Takahashi

发明人： Yuichi Kamioka ,  Toshiya Akagi ,  Yoshiyuki Miyabata ,  Yuichi Takahashi

IPC分类号： G11B7/0045 ,  G11B7/005 ,  H01S5/042 ,  H01S5/068 ,  G11B7/004

CPC分类号： H01S5/042 ,  G11B7/00454 ,  G11B7/005 ,  H01S5/0427 ,  H01S5/06817

摘要： A semiconductor laser driving apparatus for directing light to an optical disc for recording a recording mark based on a recording current and reproducing the recording mark to generate a reproduction signal. The apparatus includes a reproduction current generation section; a high frequency current generation section for generating a current including a high frequency component for reducing semiconductor laser noise in the reproduction; a recording current generation section, the recording current including a pulse corresponding to the recording mark and including a plurality of multi-pulses; and a current driving section for amplification. The apparatus further includes a filter to attenuate the enhanced high frequency components in the high frequency current and in the enhanced high frequency component; and a switching section for switching the filter so that the enhanced component in the recording current is superposed on at least one of the multi-pulses.

摘要翻译： 一种半导体激光器驱动装置，用于根据记录电流将光导向用于记录记录标记的光盘，并再现记录标记以产生再现信号。 该装置包括再现电流产生部分; 高频电流产生部分，用于产生包括用于在再现中降低半导体激光器噪声的高频分量的电流; 记录电流产生部分，所述记录电流包括与所述记录标记对应的脉冲并且包括多个多脉冲; 和用于放大的电流驱动部分。 该装置还包括滤波器，用于衰减高频电流和增强的高频分量中增强的高频分量; 以及切换部分，用于切换滤波器，使得记录电流中的增强分量叠加在多脉冲中的至少一个上。

公开(公告)号：US06671248B2

公开(公告)日：2003-12-30

申请号：US09859585

申请日：2001-05-18

申请人： Yoshiyuki Miyabata ,  Toshiya Akagi

发明人： Yoshiyuki Miyabata ,  Toshiya Akagi

IPC分类号： G11B700

CPC分类号： G11B7/126 ,  G11B7/0045

摘要： A laser power controller detects the temperature and current setting used for the recording power during initial learning or the previous recording operation. When a new recording operation starts, the controller detects the temperature again and compared the detected temperature with the temperature at initial learning or the previous recording to adjust the current setting used for the previous recording power setting and set the initial recording power current of the new recording operation.

公开(公告)号：US06408013B1

公开(公告)日：2002-06-18

申请号：US09544545

申请日：2000-04-06

申请人： Toshiya Akagi ,  Yoshiyuki Miyabata

发明人： Toshiya Akagi ,  Yoshiyuki Miyabata

IPC分类号： H01S310

CPC分类号： H01S5/06808 ,  G11B7/126

摘要： A semiconductor laser control method and a semiconductor laser control apparatus allow an outgoing radiation power of a semiconductor laser to be accurately stabilized to a desired value even if a characteristic of the semiconductor laser changes due to temperature variations or deterioration of life. The characteristic of a semiconductor laser is measured by a semiconductor laser characteristic detection unit and a target value is corrected by a target value correction unit based on a threshold current and differential quantum efficiency obtained from the measurement result. A power control unit controls the semiconductor laser by comparing the corrected target value with the output of a power detection unit, making it possible to achieve a desired outgoing radiation power of the semiconductor laser with high accuracy even if the threshold current or differential quantum efficiency of the semiconductor laser changes due to temperature variations or deterioration of life.

摘要翻译： 半导体激光控制方法和半导体激光控制装置即使半导体激光器的特性由于温度变化或寿命的恶化而使半导体激光器的输出辐射功率被精确地稳定到期望值。 通过半导体激光特性检测单元测量半导体激光器的特性，并且通过目标值校正单元基于从测量结果获得的阈值电流和微分量子效率来校正目标值。 功率控制单元通过将校正的目标值与功率检测单元的输出进行比较来控制半导体激光器，使得即使阈值电流或差分量子效率也能够以高精度实现半导体激光器期望的输出辐射功率 半导体激光器由于温度变化或寿命的恶化而改变。

公开(公告)号：US5418574A

公开(公告)日：1995-05-23

申请号：US133202

申请日：1993-10-08

申请人： Yoshiyuki Miyabata ,  Hiroshi Onishi

发明人： Yoshiyuki Miyabata ,  Hiroshi Onishi

IPC分类号： H04N1/58 ,  H04N9/64 ,  H04N5/208 ,  H04N9/68

CPC分类号： H04N1/58 ,  H04N9/646

摘要： A video signal correction apparatus has a memory for storing a luminance value and color difference values for each pixel in an image, a horizontal color difference correction arrangement and a vertical color difference correction arrangement. The horizontal color difference correction arrangement includes a luminance change point detector for detecting leading and trailing edges, in which an area defined between the leading and trailing edges is a boundary between two colors. The colors in a region outside the boundary and adjacent to the edges are bleeding. The color difference values further outside the bleeding region are sampled to make reference color difference value. The reference color difference value is used for replacing the color difference values in the bleeding region to eliminate or reduce the bleeding color.

摘要翻译： 视频信号校正装置具有用于存储图像中的每个像素的亮度值和色差值的存储器，水平色差校正装置和垂直色差校正装置。 水平色差校正装置包括用于检测前缘和后缘的亮度变化点检测器，其中在前缘和后缘之间限定的区域是两种颜色之间的边界。 边界以外的区域中的颜色与边缘相邻。 对出血区域以外的色差值进行采样，得到基准色差值。 参考色差值用于替换出血区域中的色差值以消除或减少出血色。