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61. 发明申请

US20110051575A1 FOCUS JUMP METHOD AND OPTICAL DISC APPARATUS 审中-公开
标题翻译：聚焦方法和光盘设备
公开(公告)号：US20110051575A1
公开(公告)日：2011-03-03
申请号：US12763769
申请日：2010-04-20
申请人： Yoshinori ISHIKAWA
发明人： Yoshinori ISHIKAWA
IPC分类号： G11B7/00
CPC分类号： G11B7/08505
摘要： An optical disc apparatus includes a multilayer optical disc having a reproduction-only recording layer and a recording layer of the recordable area, on the disc, to record and reproduce the disc by the same wavelength laser light, so that a seek operation is performed rapidly, and a generation method tracking error signal (TE) is switched over by using a DPD method and push-pull method in response to a target layer to which a focus jump is applied, for a time period during which a tracking servo loop is opened in association with a focus jump.
摘要翻译：一种光盘装置，包括：盘上具有再现记录层和可记录区的记录层的多层光盘，通过相同波长的激光记录和再现盘，从而快速执行寻道操作，并且在跟踪伺服环路打开的时间段内，通过使用DPD方法和推挽方法来响应于应用了聚焦跳转的目标层来切换生成方法跟踪误差信号（TE）与焦点跳跃相关联。

62. 发明授权

US07542387B2 Defocus detection device, defocus detection method and optical disk unit using the same 失效
标题翻译：散焦检测装置，散焦检测方法和使用其的光盘装置
公开(公告)号：US07542387B2
公开(公告)日：2009-06-02
申请号：US11183085
申请日：2005-07-15
申请人： Yoshinori Ishikawa , Motoyuki Suzuki
发明人： Yoshinori Ishikawa , Motoyuki Suzuki
IPC分类号： G11B7/00
CPC分类号： G11B7/0945 , G11B7/0908 , G11B2007/0013
摘要： Defocus detection device and method capable of detecting a defocus accurately during recording of information to an optical disk having a plurality of recording layers and an optical disk unit using the device and method are provided. A temporal restriction is imposed on defocus detection and besides, in comparison with a level for detection of a first change of a focus error signal developing during a defocus, a level for detection of a successively occurring second change of a polarity inverse to that of the first change is made to be smaller. When the first level is exceeded and thereafter the second level is exceeded within a restricted time, a defocus is detected.
摘要翻译：提供了能够在使用该装置和方法向具有多个记录层的光盘和光盘单元记录信息期间准确地检测散焦的散焦检测装置和方法。对散焦检测施加时间限制，此外，与用于检测在散焦期间产生的聚焦误差信号的第一变化的电平相比，检测与第二变化相反的极性的连续发生的第二变化的电平第一次变化更小。当超过第一级，此后在受限时间内超过第二级时，检测到散焦。

63. 发明授权

US07310290B2 Tracking learning/adjusting method and optical disk device 有权
标题翻译：跟踪学习/调整方法和光盘设备
公开(公告)号：US07310290B2
公开(公告)日：2007-12-18
申请号：US10933947
申请日：2004-09-03
申请人： Yoshinori Ishikawa , Taku Hoshizawa , Fumio Isshiki
发明人： Yoshinori Ishikawa , Taku Hoshizawa , Fumio Isshiki
IPC分类号： G11B7/00
CPC分类号： G11B7/0945 , G11B7/0941
摘要： Even in an optical disk which includes, within a single disk, plural record areas whose track-pitches differ from each other, a tracking parameter is adjusted in a short time and with a high accuracy. At first, an optical pickup for reading information recorded in the optical disk is displaced into a reference track-pitch area which is one of the plural record areas of the optical disk. Moreover, the tracking gain is adjusted so that the tracking servo gain in this area may exhibit a predetermined characteristic. Also, the value thus acquired is recorded into, e.g., a non-volatile memory. After that, based on the tracking parameter learned/adjusted in the reference track-pitch area, the tracking parameter in another track-pitch area is calculated using the track-pitch ratio therebetween. Thereby it becomes possible to adjust the tracking parameter in a short time and with a high accuracy.
摘要翻译：即使在单个盘中包括轨道间距彼此不同的多个记录区域的光盘中，也可以在短时间内以高精度调整跟踪参数。首先，用于读取记录在光盘中的信息的光学拾取器被移动到作为光盘的多个记录区域之一的参考轨道间距区域中。此外，调整跟踪增益，使得该区域中的跟踪伺服增益可以呈现预定特性。此外，由此获得的值被记录到例如非易失性存储器中。之后，基于在参考轨道间距区域中学习/调整的跟踪参数，使用它们之间的轨道间距比来计算另一轨道间距区域中的跟踪参数。由此，可以在短时间内和高精度地调整跟踪参数。

64. 发明申请

US20050088928A1 Focus point switching method between layers 失效
标题翻译：层之间的聚焦点切换方法
公开(公告)号：US20050088928A1
公开(公告)日：2005-04-28
申请号：US10988536
申请日：2004-11-16
申请人： Yukinobu Tada , Yoshinori Ishikawa
发明人： Yukinobu Tada , Yoshinori Ishikawa
IPC分类号： G11B7/00 , G11B7/085
CPC分类号： G11B19/02 , G11B7/08511 , G11B7/08529 , G11B19/12 , G11B2007/0013
摘要： A focus jump technique enables focus control on recording layers of a disc in such a manner that its effect is not absorbed by disturbance or a variation in the movement speed of an objective lens. The technique involves monitoring level of a focus error signal and rejecting noise from the error signal. A speed sensor detects movement speed of an objective lens; and a speed control circuit generates a voltage for controlling the objective lens, based on the detected movement speed. Movement speed of the objective lens is detected during focus jump, a corresponding lens drive signal is generated, and an end position is determined from behavior of the error signal immediately before the end of the jump. A focus control is pulled, from a focus point corresponding to one recording layer, into a focus point corresponding to another recording layer forcibly in a stable manner.
摘要翻译：聚焦跳跃技术使得对盘的记录层进行聚焦控制，使得其效果不被物理干扰或物镜的移动速度的变化所吸收。该技术涉及监测聚焦误差信号的电平并且从误差信号中抑制噪声。速度传感器检测物镜的移动速度; 并且速度控制电路基于检测到的移动速度产生用于控制物镜的电压。在聚焦跳跃期间检测物镜的移动速度，产生对应的镜头驱动信号，并且根据在跳跃结束之前的误差信号的行为来确定结束位置。从对应于一个记录层的对焦点将焦点控制以稳定的方式被强制地拉入对应于另一记录层的对焦点。

65. 发明授权

US08233374B2 Multilayer optical disc 有权
标题翻译：多层光盘
公开(公告)号：US08233374B2
公开(公告)日：2012-07-31
申请号：US12600580
申请日：2008-05-15
申请人： Yoshinori Ishikawa , Koji Mishima , Tsutomu Aoyama , Takashi Kikukawa
发明人： Yoshinori Ishikawa , Koji Mishima , Tsutomu Aoyama , Takashi Kikukawa
IPC分类号： G11B3/74
CPC分类号： G11B7/24038 , G11B7/0037 , G11B7/08511 , G11B2007/0013 , Y10T428/21
摘要： In a multi-layer optical disc, having three (3) or more recording layers thereof, for enabling an easy focus lead-in operation onto a desired recording layer, reflectivity of respective recording layers are so determined that a ratio between the reflectivity of the desired recording layer and the reflectivity of other recording layers is equal or greater than a predetermined value, upon basis of the reflectivity of the other recording layers.
摘要翻译：在具有三（3）个或更多个记录层的多层光盘中，为了能够容易地将焦点导入到期望的记录层上，各个记录层的反射率被确定为：基于其他记录层的反射率，期望的记录层和其它记录层的反射率等于或大于预定值。

66. 发明申请

US20100260026A1 MULTILAYER OPTICAL DISC 有权
标题翻译：多层光盘
公开(公告)号：US20100260026A1
公开(公告)日：2010-10-14
申请号：US12600580
申请日：2008-05-15
申请人： Yoshinori Ishikawa , Koji Mishima , Tsutomu Aoyama , Takashi Kikukawa
发明人： Yoshinori Ishikawa , Koji Mishima , Tsutomu Aoyama , Takashi Kikukawa
IPC分类号： G11B3/74
CPC分类号： G11B7/24038 , G11B7/0037 , G11B7/08511 , G11B2007/0013 , Y10T428/21
摘要： In a multi-layer optical disc, having three (3) or more recording layers thereof, for enabling an easy focus lead-in operation onto a desired recording layer, reflectivity of respective recording layers are so determined that a ratio between the reflectivity of the desired recording layer and the reflectivity of other recording layers is equal or greater than a predetermined value, upon basis of the reflectivity of the other recording layers.
摘要翻译：在具有三（3）个或更多个记录层的多层光盘中，为了能够容易地将焦点导入到期望的记录层上，各个记录层的反射率被确定为：基于其他记录层的反射率，期望的记录层和其它记录层的反射率等于或大于预定值。

67. 发明申请

US20100134698A1 GROUND DETECTION CIRCUIT FOR VIDEO SIGNAL DRIVER TO PREVENT LARGE CLAMP TRANSISTOR CURRENT 失效
标题翻译：用于视频信号驱动器的接地检测电路，以防止大的钳位晶体管电流
公开(公告)号：US20100134698A1
公开(公告)日：2010-06-03
申请号：US12325073
申请日：2008-11-28
申请人： Wee Siong LOW , Jun Chao TAN , Yoshinori ISHIKAWA
发明人： Wee Siong LOW , Jun Chao TAN , Yoshinori ISHIKAWA
IPC分类号： H04N5/63
CPC分类号： H04N5/63
摘要： A large current flowing out from video signal line driver is prevented whenever the video signal line is being grounded. The system includes a video signal line driver circuit transmitting video signal at pre-determined DC level, a large current prevention circuit detecting video signal line being shorted to ground and cut-off excessive current source out from video signal line driver circuit into video signal line, a start-up time enhancement circuit improving start-up time of ground detection circuit so that system start-up time is not limited by large current prevention circuit, and a switching threshold control circuit setting the switching threshold of large current prevention circuit and start-up time enhancement circuit.
摘要翻译：只要视频信号线接地，就会防止从视频信号线驱动器流出的大电流。该系统包括以预定的DC电平传输视频信号的视频信号线驱动电路，检测视频信号线被短路接地的大电流防止电路，并将从视频信号线驱动电路输出的过大的电流源切断为视频信号线，提高接地检测电路的启动时间的启动时间增强电路，使得系统启动时间不受大电流防止电路的限制，以及设定大电流防止电路的开关阈值并开始的开关阈值控制电路 - 时间增强电路。

68. 发明申请

US20090135684A1 Defocus Detection Device, Defocus Detection Method and Optical Disk Unit Using the Same 有权
标题翻译：散焦检测装置，散焦检测方法和使用其的光盘单元
公开(公告)号：US20090135684A1
公开(公告)日：2009-05-28
申请号：US12360235
申请日：2009-01-27
申请人： Yoshinori ISHIKAWA , Motoyuki SUZUKI
发明人： Yoshinori ISHIKAWA , Motoyuki SUZUKI
IPC分类号： G11B7/00
CPC分类号： G11B7/0945 , G11B7/0908 , G11B2007/0013
摘要： Defocus detection device and method capable of detecting a defocus accurately during recording of information to an optical disk having a plurality of recording layers and an optical disk unit using the device and method are provided. A temporal restriction is imposed on defocus detection and besides, in comparison with a level for detection of a first change of a focus error signal developing during a defocus, a level for detection of a successively occurring second change of a polarity inverse to that of the first change is made to be smaller. When the first level is exceeded and thereafter the second level is exceeded within a restricted time, a defocus is detected.
摘要翻译：提供了能够在使用该装置和方法向具有多个记录层的光盘和光盘单元记录信息期间准确地检测散焦的散焦检测装置和方法。对散焦检测施加时间限制，此外，与用于检测在散焦期间产生的聚焦误差信号的第一变化的电平相比，检测与第二变化相反的极性的连续发生的第二变化的电平第一次变化更小。当超过第一级，此后在受限时间内超过第二级时，检测到散焦。

69. 发明申请

US20060169679A1 Laser cladding apparatus and method 有权
标题翻译：激光熔覆设备及方法
公开(公告)号：US20060169679A1
公开(公告)日：2006-08-03
申请号：US10562574
申请日：2004-06-29
申请人： Akio Sato , Yoshinori Ishikawa
发明人： Akio Sato , Yoshinori Ishikawa
IPC分类号： B23K26/34
CPC分类号： B23K26/103 , B23K26/32 , B23K26/34 , B23K35/0244 , B23K2103/10 , B23K2103/12 , B23K2103/18 , F01L3/04 , F01L2103/00
摘要： A laser-clad processing apparatus of the present invention is one which is for carrying out laser-clad processing onto a valve-seat portion of a cylinder head, and is characterized in that it comprises cylinder-head holding means (1) for holding a cylinder head (H) in an inclining manner so that the central axial line of a valve seat becomes the vertical direction, a laser-processing head (2) for irradiating a laser beam onto a process part of the valve seat and at the same time discharging a powdery material to this process part, rotary means (3) which rotates around the central axial line of the valve seat in such a state that the laser-processing head is inclined with respect to the vertical direction, and powdery-material supply means (4) for supplying the powdery material to the laser-processing head. Moreover, a laser-clad processing method of the present invention is characterized in that it fixes the cylinder head (H), and forms a clad layer while rotating the laser-processing head (2), which emits the laser beam with respect to the valve-seat portion of the cylinder head and discharges the powdery material, around the axial center line of the valve seat.
摘要翻译：本发明的激光包覆处理装置是用于对气缸盖的阀座部进行激光包覆处理的特征，其特征在于，包括：气缸盖保持装置（1），用于保持气缸盖（H），使得阀座的中心轴线成为垂直方向，激光加工头（2）用于将激光束照射到阀座的处理部分上，同时将粉末状材料排出到该处理部件，旋转装置（3），其在激光加工头相对于垂直方向倾斜的状态下围绕阀座的中心轴线旋转;以及粉末材料供给装置（4），用于将粉末材料供应到激光加工头。此外，本发明的激光包覆处理方法的特征在于，其固定气缸盖（H），并且在旋转激光加工头（2）的同时形成包覆层，激光加工头（2）相对于气缸盖的阀座部分，并且围绕阀座的轴向中心线排出粉末状材料。

70. 发明授权

US06248470B1 Pressure sensitive ciruit breaker 失效
标题翻译：压敏断路器
公开(公告)号：US06248470B1
公开(公告)日：2001-06-19
申请号：US09185684
申请日：1998-11-04
申请人： Tadamitsu Azema , Yoshinori Ishikawa
发明人： Tadamitsu Azema , Yoshinori Ishikawa
IPC分类号： H01M234
CPC分类号： H01M2/345 , H01M2/34
摘要： The pressure sensitive circuit breaker comprises a diaphragm portion formed by grinding a part of a lid so as to have a wall thickness which is small in comparison with other portions of the lid, the diaphragm portion being displaced by an internal pressure of a battery, a cut-off element having a cut-off circuit and held by the lid, the cut-off element functioning to cut off the cut-off circuit by displacement of the diaphragm portion with an increase in internal pressure of the battery, an external electrode connected to one end of the cut-off circuit, and inner connection means for connecting an opposite end of the cut-off circuit of the cut-off element with a power generating element located in the interior of the battery.
摘要翻译：压敏断路器包括通过研磨盖的一部分而形成的隔膜部分，以便具有与盖的其它部分相比较小的壁厚，隔膜部分被电池的内部压力移位，截止元件具有截止电路并由盖保持，该截止元件用于通过膜片部分的位移与电池的内部压力的增加来切断截止电路，外部电极连接以及用于将截止元件的截止电路的相对端与位于电池内部的发电元件连接的内部连接装置。

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