公开(公告)号：US20110188361A1

公开(公告)日：2011-08-04

申请号：US12679553

申请日：2007-09-28

申请人： Shoji Fuse ,  Junichi Furukawa ,  Hiroshi Nishiwaki ,  Yoshio Sasaki

发明人： Shoji Fuse ,  Junichi Furukawa ,  Hiroshi Nishiwaki ,  Yoshio Sasaki

IPC分类号： G11B7/125

CPC分类号： G11B7/1267 ,  G11B7/0045

摘要： A recording apparatus includes: a recording device for recording data onto a recording medium by applying a laser beam whose power can be adjusted; a first controlling device controlling the recording device to record calibration data while adjusting power; a first detecting device detecting calibration data recording quality; a second detecting device detecting push-pull signal amplitude by reading the calibration data; a first calculating device calculating a power by which the recording quality is desired quality, as a first optimum power; a second calculating device calculating a power by which the amplitude of the recorded push-pull signal satisfies a first condition and by which the recording quality satisfies a second condition, as a second optimum power, if the push-pull amplitude fails the first condition; and a second controlling device controlling the recording device to start recording record data by applying the laser beam with the first or second optimum power.

摘要翻译： 一种记录装置，包括：记录装置，用于通过施加能够调节其功率的激光束将数据记录到记录介质上; 第一控制装置控制记录装置在调节功率的同时记录校准数据; 检测校准数据记录质量的第一检测装置; 第二检测装置，通过读取校准数据来检测推挽信号幅度; 第一计算装置，其计算作为第一最佳功率的记录质量是期望质量的功率; 第二计算装置，如果推挽幅度失败，则计算所记录的推挽信号的幅度满足第一条件并且记录质量满足第二条件的功率作为第二最佳功率; 以及第二控制装置，通过施加具有第一或第二最佳功率的激光束来控制记录装置开始记录记录数据。

公开(公告)号：US07697583B2

公开(公告)日：2010-04-13

申请号：US11910282

申请日：2006-03-30

申请人： Junichi Furukawa ,  Kiyoshi Tateishi

发明人： Junichi Furukawa ,  Kiyoshi Tateishi

IPC分类号： H01S3/00 ,  H01S3/04

CPC分类号： G11B7/1263 ,  G11B7/0062 ,  H01S5/0617 ,  H01S5/06804 ,  H01S5/06832

摘要： A semiconductor laser driving device is mounted on an information recording and reproduction device, and is suitably used for recording and reproducing information. The semiconductor laser driving device includes: a semiconductor laser for emitting a laser light; and a temperature detection unit for detecting a temperature of the semiconductor laser. The semiconductor laser driving device changes the output of the laser light based on the detected temperature. Thus, the semiconductor laser driving unit can suitably improve response characteristics of the semiconductor laser, irrespective of the temperature of the semiconductor laser. Therefore, the semiconductor laser driving device can ensure recording performance onto an optical disc without being affected by the temperature of the semiconductor laser.

摘要翻译： 半导体激光器驱动装置安装在信息记录和再现装置上，适用于记录和再现信息。 半导体激光器驱动装置包括：用于发射激光的半导体激光器; 以及用于检测半导体激光器的温度的温度检测单元。 半导体激光驱动装置根据检测到的温度来改变激光的输出。 因此，与半导体激光器的温度无关，半导体激光器驱动单元可以适当地改善半导体激光器的响应特性。 因此，半导体激光驱动装置能够确保在光盘上的记录性能而不受半导体激光器的温度的影响。

公开(公告)号：US20090252004A1

公开(公告)日：2009-10-08

申请号：US12066197

申请日：2006-09-04

申请人： Junichi Furukawa ,  Kiyoshi Tateishi

发明人： Junichi Furukawa ,  Kiyoshi Tateishi

IPC分类号： G11B19/00 ,  G01J1/32

CPC分类号： G11B7/1275 ,  G11B7/126 ,  G11B2007/0006

摘要： A light beam output control device is provided, which can adequately perform a negative feedback control for different light beams.An optical pickup device 100 calculates an error between a detection voltage, a laser, and a target value of each kind of the detected laser beams. If the calculated error is not in a predetermined range for each kind of the laser beams, the optical pickup device makes each kind of the laser beams correspond to the error, changes a correction amount of the error when a negative feedback control is performed, and corrects the error on the basis of the correction amount corresponding to each kind of the laser beams, thereby performing a negative feedback control.

摘要翻译： 提供了一种光束输出控制装置，其可以适当地对不同光束执行负反馈控制。 光学拾取装置100计算检测电压，激光器和每种检测到的激光束的目标值之间的误差。 如果计算出的误差不在每种激光束的预定范围内，则光学拾取装置使各种激光对应于该误差，改变执行负反馈控制时的误差校正量，以及 基于与各种激光束对应的校正量来校正误差，从而进行负反馈控制。

公开(公告)号：US20080294908A1

公开(公告)日：2008-11-27

申请号：US11658317

申请日：2005-07-27

申请人： Kazutoshi Yamaguchi ,  Kazunori Yamaji ,  Hisayoshi Zenke ,  Junichi Furukawa

发明人： Kazutoshi Yamaguchi ,  Kazunori Yamaji ,  Hisayoshi Zenke ,  Junichi Furukawa

IPC分类号： G06F21/24 ,  G06F12/14

CPC分类号： H04N5/913 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00224 ,  G11B20/00246 ,  G11B20/00253 ,  G11B20/00492 ,  G11B20/00543 ,  G11B20/00869 ,  G11B20/12 ,  G11B2220/61 ,  H04L9/0822 ,  H04L9/3273 ,  H04L2209/60 ,  H04N5/775 ,  H04N5/9201 ,  H04N2005/91342 ,  H04N2005/91364

摘要： A recording device has a content encryption unit for writing a content encrypted with a content key in a recording medium, and a key encryption unit for encrypting the content key and writing the encrypted content key in the recording medium. A content key processing device has a key decryption unit that decrypts the content key that has been encrypted and recorded in a recording medium, and a key encryption unit that re-encrypts the decrypted content key with predetermined information and writes the re-encrypted content key in the recording medium.

摘要翻译： 记录装置具有内容加密单元，用于将用内容密钥加密的内容写入记录介质，以及密钥加密单元，用于加密内容密钥并将加密内容密钥写入记录介质。 内容密钥处理装置具有对已经被加密并记录在记录介质中的内容密钥进行解密的密钥解密单元，以及密钥加密单元，用预定信息重新加密解密的内容密钥，并将重新加密的内容密钥 在记录介质中。

公开(公告)号：US07291861B2

公开(公告)日：2007-11-06

申请号：US11188893

申请日：2005-07-26

申请人： Junichi Furukawa

发明人： Junichi Furukawa

IPC分类号： H01L29/04

CPC分类号： H01L27/14812 ,  H01L27/14683

摘要： A solid-state imaging device includes a two-dimensional array of photosensor sections on a semiconductor substrate, and a vertical transfer section including two-layer vertical transfer electrodes. The photosensor sections store signal charges generated by photoelectric conversion. The vertical transfer section reads signal charges from the photosensor sections and vertically transfers the read signal charges. The two-layer vertical transfer electrodes have first transfer electrode layers and second transfer electrode layers, and the first transfer electrode layers serve as read electrodes for reading the signal charges from the photosensor sections. The first transfer electrode layers have a larger electrode width with respect to the photosensor sections than the second transfer electrode layers.

公开(公告)号：US07096450B2

公开(公告)日：2006-08-22

申请号：US10604165

申请日：2003-06-28

申请人： Jason P. Gill ,  David L. Harmon ,  Deborah M. Massey ,  Alvin W. Strong ,  Timothy D. Sullivan ,  Junichi Furukawa

发明人： Jason P. Gill ,  David L. Harmon ,  Deborah M. Massey ,  Alvin W. Strong ,  Timothy D. Sullivan ,  Junichi Furukawa

IPC分类号： G06F17/50

CPC分类号： G06F17/5077 ,  H01L23/3677 ,  H01L23/522 ,  H01L23/5226 ,  H01L2924/0002 ,  H05K1/0201 ,  H05K3/0005 ,  H01L2924/00

摘要： An electronic structure having wiring, and an associated method of designing the structure, for limiting a temperature gradient in the wiring. The electronic structure includes a substrate having a layer that includes a first and second wire which do not physically touch each other. The first and second wires are adapted to be at an elevated temperature due to Joule heating in relation to electrical current density in the first and second wires. The first wire is electrically and thermally coupled to the second wire by an electrically and thermally conductive structure that exists outside of the layer. The width of the second wire is tailored so as to limit a temperature gradient in the first wire to be below a threshold value that is predetermined to be sufficiently small so as to substantially mitigate adverse effects of electromigration in the first wire.

公开(公告)号：US06992953B2

公开(公告)日：2006-01-31

申请号：US09813898

申请日：2001-03-22

申请人： Mitsuru Sato ,  Junichi Furukawa ,  Kazuo Takahashi ,  Takanori Maeda ,  Hiroshi Nishiwaki ,  Takayuki Nomoto ,  Ikuya Kikuchi

发明人： Mitsuru Sato ,  Junichi Furukawa ,  Kazuo Takahashi ,  Takanori Maeda ,  Hiroshi Nishiwaki ,  Takayuki Nomoto ,  Ikuya Kikuchi

IPC分类号： G11B7/095

CPC分类号： G11B7/1353 ,  G11B7/0901 ,  G11B7/0912 ,  G11B7/094 ,  G11B7/0941 ,  G11B7/0943 ,  G11B7/1381

摘要： A tracking servo apparatus in which reflection light obtained when a laser beam is irradiated onto a recording surface of an optical disc is photoelectrically converted, thereby obtaining a photoelectric conversion signal, a tracking error signal showing a deviation amount of an irradiating position of said laser beam for a track in a disc radial direction on the recording surface is generated by the photoelectric conversion signal, a spherical aberration occurring in an optical system is detected, a level of the tracking error signal is corrected on the basis of the detection result, and the irradiating position of the laser beam is moved in the disc radial direction in accordance with the level-corrected tracking error signal.

摘要翻译： 一种跟踪伺服装置，其中将激光束照射到光盘的记录表面上时获得的反射光被光电转换，从而获得光电转换信号，表示所述激光束的照射位置的偏差量的跟踪误差信号 通过光电转换信号产生在记录表面上的磁盘径向方向上的轨迹，检测出在光学系统中发生的球面像差，根据检测结果校正跟踪误差信号的电平，并且 根据电平校正的跟踪误差信号，激光束的照射位置沿盘径向移动。

公开(公告)号：US06411576B1

公开(公告)日：2002-06-25

申请号：US09429559

申请日：1999-10-28

申请人： Junichi Furukawa ,  Kiyoshi Tateishi

发明人： Junichi Furukawa ,  Kiyoshi Tateishi

IPC分类号： G11B390

CPC分类号： G11B7/13927 ,  G11B7/0956 ,  G11B7/1365 ,  G11B7/1369

摘要： An aberration compensation device includes: a phase difference generator for receiving an input signal and for generating a phase difference used for compensating for an aberration induced in a light beam; a temperature detector for detecting a temperature of the phase difference generator; and a corrector for controlling the input signal to be inputted to the phase difference generator based on the temperature detected by the temperature detector thereby to correct a variation of a characteristic of the phase difference generator resulting from a temperature variation.

摘要翻译： 像差补偿装置包括：相位差发生器，用于接收输入信号并产生用于补偿在光束中感应的像差的相位差; 温度检测器，用于检测相位差发生器的温度; 以及校正器，用于基于由温度检测器检测的温度来控制输入到相位差发生器的输入信号，从而校正由温度变化引起的相位差发生器的特性的变化。

公开(公告)号：US06388967B2

公开(公告)日：2002-05-14

申请号：US09055703

申请日：1998-04-07

申请人： Junichi Furukawa ,  Kiyoshi Tateishi ,  Noriaki Murao ,  Hiroaki Abe

发明人： Junichi Furukawa ,  Kiyoshi Tateishi ,  Noriaki Murao ,  Hiroaki Abe

IPC分类号： G11B7135

CPC分类号： G11B7/13927 ,  G11B7/0956 ,  G11B7/1369

摘要： A liquid crystal driving signal generating apparatus comprises a PWM signal generator, a low pass filter for limiting a frequency band of a PWM signal outputted from the PWM signal generator, a liquid crystal panel connected to an output of the low pass filter, and a control means for controlling the PWM signal generator. The control means controls the PWM signal generator such that the PWM signal generator generates a PWM signal with a duty ratio corresponding to a refractive index to be set in the liquid crystal panel.

摘要翻译： 液晶驱动信号发生装置包括PWM信号发生器，用于限制从PWM信号发生器输出的PWM信号的频带的低通滤波器，连接到低通滤波器的输出的液晶面板，以及控制 用于控制PWM信号发生器的装置。 控制装置控制PWM信号发生器，使得PWM信号发生器产生一个与在液晶面板中设置的折射率对应的占空比的PWM信号。

公开(公告)号：US06198465B1

公开(公告)日：2001-03-06

申请号：US09084316

申请日：1998-05-26

申请人： Junichi Furukawa ,  Yoshitsugu Araki

发明人： Junichi Furukawa ,  Yoshitsugu Araki

IPC分类号： G09G336

CPC分类号： G11B7/1369 ,  G02F1/13306 ,  G02F2203/18 ,  G09G3/36 ,  G11B7/0956 ,  G11B7/13927

摘要： A low pass filter is provided for limiting a frequency band of an oscillating signal. A CPU is provided for producing a control signal for setting a cutoff frequency of the low pass filter so as to change an amplitude of the output signal of the low pass filter in accordance with a refractive index at each of the unit electrode of the liquid crystal panel.

摘要翻译： 提供了低通滤波器来限制振荡信号的频带。 提供CPU，用于产生用于设置低通滤波器的截止频率的控制信号，以便根据液晶单元电极中的每一个的折射率来改变低通滤波器的输出信号的幅度 面板。