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公开(公告)号：US07944799B2
公开(公告)日：2011-05-17
申请号：US12374384
申请日：2007-10-30
IPC分类号： G11B7/00
CPC分类号： G11B7/0945 , G11B7/08511 , G11B7/0908 , G11B7/1387
摘要： An optical information apparatus according to the present invention includes: an optical system that includes a solid immersion lens (SIL) 11 and that produces near-field light to be incident on an optical disc 10; a first actuator for displacing the SIL 11; a second actuator 29 for varying the distance between the optical disc 10 and the first actuator 12 by moving the first actuator 12; a gap detecting section 18 for outputting a gap signal 19 representing the magnitude of the gap 17 between the SIL 11 and the optical disc 10; and a gap control system for controlling the first actuator 12 in response to the gap signal 19 such that the gap is maintained at a predetermined setting. The gap control system works so as to control the second actuator 29 in accordance with a signal representing the magnitude of displacement of the SIL 11 caused by the first actuator 12.
摘要翻译： 根据本发明的光学信息设备包括：包括固体浸没透镜（SIL）11并且产生入射在光盘10上的近场光的光学系统; 用于移动SIL11的第一致动器; 用于通过移动第一致动器12来改变光盘10和第一致动器12之间的距离的第二致动器29; 间隙检测部分18，用于输出表示SIL11与光盘10之间间隙17的大小的间隙信号19; 以及用于响应于间隙信号19控制第一致动器12使得间隙保持在预定设定的间隙控制系统。 间隙控制系统的工作原理是根据表示由第一致动器12引起的SIL11的位移大小的信号来控制第二致动器29。
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公开(公告)号：US20140003222A1
公开(公告)日：2014-01-02
申请号：US14005386
申请日：2012-03-16
IPC分类号： G11B7/1263
CPC分类号： G11B7/1263 , G11B7/0908 , G11B7/1374 , G11B7/1387 , G11B7/139 , G11B2007/13727
摘要： An optical disk apparatus has: a laser (14) that outputs light; an optical system that includes an SIL (2) for forming a predetermined sized beam spot on an optical disk (1) using the light from the laser; a detector (26) that detects output power of the laser and generates a laser power detection signal; a laser power control circuit (27) that controls the output power of the laser using the laser power detection signal; a detector (10) that detects a gap length between the optical disk and the SIL and generates a gap detection signal; and a gap control circuit (15) that controls the gap length between the optical disk and the SIL using the gap detection signal. The power control circuit has a gain crossover frequency greater than a gain crossover frequency of the gap control circuit.
摘要翻译： 光盘装置具有：输出光的激光器（14）; 光学系统，其包括用于使用来自激光器的光在光盘（1）上形成预定尺寸的光束点的SIL（2） 检测器（26），其检测激光器的输出功率并产生激光功率检测信号; 激光功率控制电路（27），其使用所述激光功率检测信号来控制所述激光器的输出功率; 检测器（10），其检测光盘和SIL之间的间隙长度，并产生间隙检测信号; 以及间隙控制电路（15），其使用间隙检测信号来控制光盘和SIL之间的间隙长度。 功率控制电路具有大于间隙控制电路的增益交叉频率的增益交叉频率。
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3.发明申请Optical disk, optical disk device, and method for setting optical disk device 审中-公开光盘，光盘装置以及设置光盘装置的方法公开(公告)号：US20050276184A1
公开(公告)日：2005-12-15
申请号：US11136487
申请日：2005-05-25
申请人： Ryutaro Futakuchi , Kenji Koishi
发明人： Ryutaro Futakuchi , Kenji Koishi
CPC分类号： G11B7/0945 , G11B7/00736 , G11B7/0953
摘要： An optical disk, an optical disk device, and a method for setting an optical disk device are disclosed, in which the optical disk can enter a good state of recording and reproduction within a shorter amount of time. Specific information including parameters that determine the recording and reproduction state of an optical disk are prerecorded on said optical disk. An optical disk device decides the characteristics of a control circuit for recording and reproduction to and from an optical disk, on the basis of the recorded specific information.
摘要翻译： 公开了一种光盘，光盘装置以及用于设置光盘装置的方法，其中光盘可以在更短的时间内进入良好的记录和再现状态。 包括确定光盘的记录和再现状态的参数的特定信息被预先记录在所述光盘上。 光盘装置根据所记录的特定信息来决定用于从光盘记录和再现光盘的控制电路的特性。
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公开(公告)号：US06829208B1
公开(公告)日：2004-12-07
申请号：US10049683
申请日：2002-02-15
IPC分类号： G11B7005
CPC分类号： G11B20/10009 , G11B7/005
摘要： The reproduction method includes steps of: performing an addition operation on a detection signal obtained by the first light-detecting element group and a detection signal obtained by the second light-detecting element group so as to generate a summation signal and outputting the summation signal to a signal processing section; performing a difference operation on a detection signal obtained by the first light-detecting element group and a detection signal obtained by the second light-detecting element group so as to generate a differential signal and outputting the differential signal to the signal processing section; digitalizing the summation signal so as to generate a binary signal, and generating a binary signal edge pulse; when an amplitude which is equal to or greater than a predetermined value of the differential signal is detected, outputting the binary signal edge pulse as a reproduction edge pulse from the signal processing section; and generating the reproduction data.
摘要翻译： 再现方法包括以下步骤：对由第一光检测元件组获得的检测信号和由第二光检测元件组获得的检测信号执行相加操作，以产生求和信号并将求和信号输出到 信号处理部; 对由第一光检测元件组获得的检测信号和由第二光检测元件组获得的检测信号执行差分运算，以产生差分信号，并将该差分信号输出到信号处理部分; 数字化求和信号以产生二进制信号，并产生二进制信号边沿脉冲; 当检测到等于或大于差分信号的预定值的幅度时，从信号处理部分输出二进制信号边缘脉冲作为再现边缘脉冲; 并产生再现数据。
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公开(公告)号：US07957232B2
公开(公告)日：2011-06-07
申请号：US12270254
申请日：2008-11-13
IPC分类号： G11B7/004
CPC分类号： G11B7/0908 , G11B7/1374 , G11B7/1387 , G11B2007/13727
摘要： A gap controller according to the present invention can set a reference level reasonably for a gap control that needs to be done to keep the gap between a solid immersion lens (SIL) and an optical disc constant. With the gap varied at a substantially regular step, gap detection signal levels are logged to find an extreme value of its second-order difference. And the gap control reference level is determined by the gap detection signal level that results in that extreme value.
摘要翻译： 根据本发明的间隙控制器可以对于需要进行的间隙控制合理地设置参考水平，以保持固体浸没透镜（SIL）和光盘之间的间隙恒定。 随着间隙以基本上规则的步长变化，记录间隙检测信号电平以找到其二阶差的极值。 并且间隙控制参考电平由导致该极值的间隙检测信号电平确定。
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公开(公告)号：US20110002208A1
公开(公告)日：2011-01-06
申请号：US12677184
申请日：2009-07-02
IPC分类号： G11B20/18
CPC分类号： G11B7/0956 , G11B2007/13727
摘要： An optical disk device has: a detector (11) that converts a reflected light from an optical disk (5) and a reflected light of an incident light from a light source (1) side of a solid immersion lens (4), into electric signals and outputs the signals; a subtracter (15) that computes the output signal of the detector (11) according to a predetermined rule and outputs the result as a tilt detection signal; a CPU (21), an amplifier/phase compensation circuit (16), a switch (17) and an actuator (13) that perform tilt control for controlling tilt of the solid immersion lens (4) with respect to the optical disk (5) using the tilt detection signal; and the CPU (21), a nut (24), a feed screw (25), a decelerator (26) and a stepping motor (27) that perform gap adjustment for changing the gap of the solid immersion lens (4) and optical disk (5), and in the process of adjustment of gap between the solid immersion lens (4) and optical disk (5), the CPU (21) enables tilt control by closing the switch (17) according to the tilt detection signal.
摘要翻译： 光盘装置具有：将来自光盘（5）的反射光和来自固体浸没透镜（4）的光源（1）侧的入射光的反射光转换成电气的检测器（11） 信号并输出信号; 减法器（15），其根据预定规则计算检测器（11）的输出信号，并输出该结果作为倾斜检测信号; 执行用于控制固体浸没透镜（4）相对于光盘（5）的倾斜的倾斜控制的CPU（21），放大器/相位补偿电路（16），开关（17）和致动器（13） ）使用倾斜检测信号; CPU（21），螺母（24），进给螺杆（25），减速器（26）和步进马达（27），其进行用于改变固体浸没透镜（4）的间隙和光学 盘（5），并且在调整固体浸没透镜（4）和光盘（5）之间的间隙的过程中，CPU（21）通过根据倾斜检测信号关闭开关（17）来实现倾斜控制。
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公开(公告)号：US20090310467A1
公开(公告)日：2009-12-17
申请号：US12374384
申请日：2007-10-30
IPC分类号： G11B7/00
CPC分类号： G11B7/0945 , G11B7/08511 , G11B7/0908 , G11B7/1387
摘要： An optical information apparatus according to the present invention includes: an optical system that includes a solid immersion lens (SIL) 11 and that produces near-field light to be incident on an optical disc 10; a first actuator for displacing the SIL 11; a second actuator 29 for varying the distance between the optical disc 10 and the first actuator 12 by moving the first actuator 12; a gap detecting section 18 for outputting a gap signal 19 representing the magnitude of the gap 17 between the SIL 11 and the optical disc 10; and a gap control system for controlling the first actuator 12 in response to the gap signal 19 such that the gap is maintained at a predetermined setting. The gap control system works so as to control the second actuator 29 in accordance with a signal representing the magnitude of displacement of the SIL 11 caused by the first actuator 12.
摘要翻译： 根据本发明的光学信息设备包括：包括固体浸没透镜（SIL）11并且产生入射在光盘10上的近场光的光学系统; 用于移动SIL11的第一致动器; 用于通过移动第一致动器12来改变光盘10和第一致动器12之间的距离的第二致动器29; 间隙检测部分18，用于输出表示SIL11与光盘10之间间隙17的大小的间隙信号19; 以及用于响应于间隙信号19控制第一致动器12使得间隙保持在预定设定的间隙控制系统。 间隙控制系统的工作原理是根据表示由第一致动器12引起的SIL11的位移大小的信号来控制第二致动器29。
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8.发明申请Optical disk device, semiconductor device, optical disk and recording method 审中-公开光盘装置，半导体装置，光盘及记录方法公开(公告)号：US20050099923A1
公开(公告)日：2005-05-12
申请号：US10968913
申请日：2004-10-21
申请人： Ryutaro Futakuchi , Kenji Koishi
发明人： Ryutaro Futakuchi , Kenji Koishi
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/125
CPC分类号： G11B7/00456 , G11B7/1263
摘要： An object of the present invention is to provide an optical disk device which is capable of forming a recording mark at a more suitable position by using a more suitable recording compensation value. To achieve the object above, the optical disk device of the present invention is a device which records recording data by forming a mark on an optical disk 9 by using a recording pulse 1 in accordance with the recording data, and includes an optical pickup and a control unit. The optical pickup includes a laser 7 which emits a laser beam 8 in accordance with a recording pulse 1 and an optical component to guides a laser beam 8 to the optical disk 9. The control unit controls the emission of the laser 7 by using a recording compensation value predetermined in accordance with an emission property of the laser 7.
摘要翻译： 本发明的目的是提供一种能够通过使用更合适的记录补偿值在更合适的位置形成记录标记的光盘装置。 为了实现上述目的，本发明的光盘装置是通过使用根据记录数据的记录脉冲1在光盘9上形成标记来记录记录数据的装置，并且包括光学拾取器和 控制单元 光学拾取器包括根据记录脉冲1发射激光束8的激光器7和将激光束8引导到光盘9的光学部件。 控制单元通过使用根据激光器7的发射特性预定的记录补偿值来控制激光器7的发射。
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9.发明授权Multilayer optical disk, and method and device for recording optical information thereon 失效多层光盘，以及用于在其上记录光学信息的方法和装置公开(公告)号：US06735158B1
公开(公告)日：2004-05-11
申请号：US09913358
申请日：2001-08-13
申请人： Ryutaro Futakuchi , Shunji Ohara
发明人： Ryutaro Futakuchi , Shunji Ohara
IPC分类号： G11B390
CPC分类号： G11B7/00745 , G11B7/24038 , G11B27/19 , G11B27/24 , G11B27/3027 , G11B2220/216 , G11B2220/235
摘要： A disc capable of reproducing an address signal and a data signal correctly even by using a multilayer optical disc that includes a plurality of recording reproduction surfaces bonded together in a state in which front positions in sectors of the respective recording reproduction surfaces do not match completely, a method and a device are provided. In one embodiment, a relationship between a bonding precision L and a length G of a gap area is determined to be L≦G. In another embodiment, by recording information in a range of a length corresponding to the bonding precision L not only in the data area but also in the gap area, a data recording starting position and a data recording ending position for each sector of the respective recording reproduction surfaces are matched. In yet another embodiment, guard areas are provided in a tip portion and a back end portion of the data area.
摘要翻译： 一种能够在各记录再现表面的扇区中的前置位完全不匹配的状态下通过使用包括多个记录再现表面的多层光盘来正确再现地址信号和数据信号的盘， 提供了一种方法和装置。 在一个实施例中，将接合精度L和间隙区域的长度G之间的关系确定为L <= G。 在另一个实施例中，通过不仅在数据区域中而且在间隙区域中记录与粘合精度L相对应的长度的范围内的信息，所以各个记录的每个扇区的数据记录开始位置和数据记录结束位置 再现表面匹配。 在另一个实施例中，保护区域设置在数据区域的尖端部分和后端部分中。
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公开(公告)号：US08854939B2
公开(公告)日：2014-10-07
申请号：US14005386
申请日：2012-03-16
IPC分类号： G11B7/00 , G11B7/1263 , G11B7/1374 , G11B7/1387 , G11B7/09 , G11B7/139 , G11B7/1372
CPC分类号： G11B7/1263 , G11B7/0908 , G11B7/1374 , G11B7/1387 , G11B7/139 , G11B2007/13727
摘要： An optical disk apparatus has: a laser (14) that outputs light; an optical system that includes an SIL (2) for forming a predetermined sized beam spot on an optical disk (1) using the light from the laser; a detector (26) that detects output power of the laser and generates a laser power detection signal; a laser power control circuit (27) that controls the output power of the laser using the laser power detection signal; a detector (10) that detects a gap length between the optical disk and the SIL and generates a gap detection signal; and a gap control circuit (15) that controls the gap length between the optical disk and the SIL using the gap detection signal. The power control circuit has a gain crossover frequency greater than a gain crossover frequency of the gap control circuit.
摘要翻译： 光盘装置具有：输出光的激光器（14）; 光学系统，其包括用于使用来自激光器的光在光盘（1）上形成预定尺寸的光束点的SIL（2） 检测器（26），其检测激光器的输出功率并产生激光功率检测信号; 激光功率控制电路（27），其使用所述激光功率检测信号来控制所述激光器的输出功率; 检测器（10），其检测光盘和SIL之间的间隙长度，并产生间隙检测信号; 以及间隙控制电路（15），其使用间隙检测信号来控制光盘和SIL之间的间隙长度。 功率控制电路具有大于间隙控制电路的增益交叉频率的增益交叉频率。
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