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1.发明授权Head position recognition method, a speed calculation method, and a head movement speed control device 失效头部位置识别方法，速度计算方法和头部移动速度控制装置
公开(公告)号：US5383068A
公开(公告)日：1995-01-17
申请号：US883209
申请日：1992-05-14
申请人： Ryosuke Shimizu , Tetsurou Takaoka
发明人： Ryosuke Shimizu , Tetsurou Takaoka
CPC分类号： G11B5/5547 , G11B21/083
摘要： A head position recognition method, a speed calculation method, and a head movement speed control device which provide for an overall improvement in storage device performance without increasing the seek time of the data head. Discrete servo sectors are provided circumferentially to the recording medium, four servo patterns with a minimum repeat cycle of 24 tracks are written into each servo sector. The range of the head seek distance that should be obtained at the current servo sector is estimated based on the previously calculated head seek distance, and the calculated head seek speed is corrected to the true head seek distance.
摘要翻译： 一种头位置识别方法，速度计算方法以及头部移动速度控制装置，其在不增加数据头的寻道时间的情况下提供存储装置性能的总体改进。 离散伺服扇区周向地设置在记录介质上，具有24个轨迹的最小重复周期的四个伺服模式被写入每个伺服扇区。 基于先前计算的头部搜索距离来估计在当前伺服扇区处应该获得的头部搜索距离的范围，并将所计算的头部寻道速度校正为真正的头部搜索距离。
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2.发明授权Resolution enhancement of absolute track position using iterative process and position bursts 失效使用迭代过程和位置突发分辨率提高绝对轨迹位置
公开(公告)号：US5402287A
公开(公告)日：1995-03-28
申请号：US732207
申请日：1991-07-18
IPC分类号： G11B5/596
CPC分类号： G11B5/596
摘要： In the head positioning apparatus of a disk-shaped information recording medium using the sector-servo-method, track codes are recorded in advance so as to be repeated every 12 tracks in the servo sectors of the disk-shaped information recording medium, the track are reproduced with a head, and a distance between the current position of the head and a target track is detected from the reproduced signal of the track codes with a resolution of 1/2.sup.7 of track width, then the head is moved to the target track so as to decrease the distance, when the head reaches the range of the width of .+-.6 tracks of the target track, an expanded head position signal having the resolution of 1/2.sup.7 is generated, and the head is controlled on the basis of the expanded head position signal and is finally settled to the target track.
摘要翻译： 在使用扇区伺服方式的盘形信息记录介质的头定位装置中，预先记录轨道码，以便在盘状信息记录介质的伺服扇区中每12个轨道重复，轨道 用头部再现，并且以轨道宽度的1/27的分辨率从轨道码的再现信号中检测头部和目标轨道的当前位置之间的距离，然后将头移动到目标轨道 为了减小距离，当头部到达目标轨道的+/- 6个轨道的宽度的范围时，产生具有1/27分辨率的扩展的头位置信号，并且基于 的扩展头位置信号，并最终确定到目标轨道。
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3.发明授权Resolution enhancement of absolute track position using iterative process and position bursts with track following capability 失效使用具有跟踪能力的迭代过程和位置脉冲串分辨率增强绝对轨迹位置
公开(公告)号：US5396380A
公开(公告)日：1995-03-07
申请号：US730237
申请日：1991-07-15
CPC分类号： G11B5/5547
摘要： Track codes are recorded in advance so as to be repeated every 12 tracks, and burst signals .alpha. and .beta. are also recorded in advance so as to be repeated every 2 tracks, in the servo sectors of the disk-shaped information recording medium; the track codes and the burst signals .alpha. and .beta. are reproduced with a data head, and a distance between the current position of the data head and a target track is detected from the reproduced signal of the track codes with a resolution of 1/2.sup.2 of track width, then the data head is moved to the target track so as to decrease the distance; when the data head reaches the range of the width of .+-.6 tracks of the target track, an expanded data head position signal having the resolution of 1/2.sup.2 is generated; and thereby the data head is controlled.
摘要翻译： 提前记录轨道码，以便每12个轨道重复，并且在盘状信息记录介质的伺服扇区中，还预先记录突发信号α和β以便每2个磁道重复; 利用数据头再现轨道码和突发信号α和β，并根据轨道码的再现信号，以1/22的分辨率检测数据头的当前位置与目标轨道之间的距离 轨道宽度，然后将数据头移动到目标轨道，以减小距离; 当数据磁头达到目标磁道的+/- 6磁道的宽度范围时，生成分辨率为1/22的扩展数据磁头位置信号; 从而数据头被控制。
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4.发明授权Quantum entanglement photon-pair producing device and quantum entanglement photon pair producing method 失效量子纠缠光子对产生装置和量子纠缠光子对的产生方法公开(公告)号：US07570419B2
公开(公告)日：2009-08-04
申请号：US12224289
申请日：2007-03-01
申请人： Keiichi Edamatsu , Ryosuke Shimizu
发明人： Keiichi Edamatsu , Ryosuke Shimizu
CPC分类号： G02F1/39 , B82Y10/00 , G06N99/002
摘要： In one embodiment of the present invention, a quantum entangled photon-pair producing device is disclosed which includes a superposed state generating device for generating a superposed state of photon-pairs entering through N (N≧2) different incident optical paths and being composed of photons having different polarization directions, and a light-guide device for separating the photon-pairs entering through the N (e.g. N is two) incident optical paths into photons having a first polarization direction (e.g. horizontally polarized light) and those having a second polarization direction (e.g. vertically polarized light) and guiding the photons having the first polarization direction and entering through the i-th (1≦i≦N) (e.g. the first) incident optical path and photons having the second polarization direction and entering through the (N−i+1) (e.g. the second) incident optical path to the i-th (e.g. the first) exit optical path through optical paths having the same optical path length. Therefore, quantum entangled photons of N channels having a quantum correlation with regard to the polarization direction can be produced. With this, a quantum entangled photon-pair producing device capable of producing quantum entangled photon-pairs of multi-channel having a quantum correlation with regard to the polarization direction with high production efficiency is realized.
摘要翻译： 在本发明的一个实施例中，公开了一种量子纠缠光子对产生装置，其包括用于产生通过N（N> = 2）个不同入射光路进入的光子对的叠加状态的叠加状态产生装置， 的光子具有不同的偏振方向，以及导光装置，用于将通过N（例如N是两个）入射的光子对分离成具有第一偏振方向（例如水平偏振光）的光子，并且具有第二偏振方向的光子 偏振方向（例如垂直偏振光），并引导具有第一偏振方向的光子并通过第i（1≤i≤N）（例如第一）入射光路和具有第二偏振方向的光子进入 通过具有相同光路径的光路的第（N-i + 1）（例如第二）入射光路到第i（例如第一）出射光路 H。 因此，可以产生与偏振方向有量子相关性的N个通道的量子纠缠光子。 由此，实现了能够以高生产效率产生与极化方向有量子相关性的多通道量子纠缠光子对的量子纠缠光子对产生装置。
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公开(公告)号：US11104655B2
公开(公告)日：2021-08-31
申请号：US16770405
申请日：2018-12-04
申请人： Ryosuke Shimizu , Takahiro Hosono , Ichihiro Aratani , Ryo Kouchi
发明人： Ryosuke Shimizu , Takahiro Hosono , Ichihiro Aratani , Ryo Kouchi
IPC分类号： C07D307/08 , B01J23/44 , C07D309/04
摘要： A method for producing a cyclic ether represented by formula (2) includes reacting a 2-hydroxy cyclic ether, represented by formula (1), with hydrogen in the presence of a catalyst.
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6.发明申请公开(公告)号：US20120134377A1
公开(公告)日：2012-05-31
申请号：US13376107
申请日：2010-06-03
申请人： Ryosuke Shimizu , Keiichi Edamatsu
发明人： Ryosuke Shimizu , Keiichi Edamatsu
IPC分类号： H01S3/10
CPC分类号： H04B10/70 , G02F1/35 , G02F2202/20 , H04J14/02 , H04L9/0858
摘要： A wavelength-multiplexed polarization entangled photon pair generator (1) includes: a pump light source (2); a polarization entangled photon pair generating body (4) on which pump light (3) outputted from the pump light source (2) falls; and a spectrometer (7) on which a wavelength-multiplexed parametric photon pair (5) outputted from the polarization entangled photon pair generating body 4 falls. The polarization entangled photon pair generating body (4) made of a nonlinear optical crystal (11) generates wavelength-multiplexed photon pairs by subjecting the pump light 3 to type II phase matching. As a nonlinear optical crystal 11, lithium tantalate of periodically poled structure (11A) can be used, and as a spectrometer (7), an arrayed-waveguide grating can be used. Wavelength-multiplexed polarization entangled photon pairs (5) can thus be generated with simple equipment.
摘要翻译： 波长多路复用偏振纠缠光子对发生器（1）包括：泵浦光源（2）; 偏振纠缠光子对发生体（4），泵浦光源（2）输出的泵浦光（3）落在其上; 以及从偏振纠缠光子对产生体4输出的波长多路复用参数光子对（5）的光谱仪（7）。 由非线性光学晶体（11）制成的偏振纠缠光子对产生体（4）通过对泵浦光3进行II型相位匹配来产生波长多路复用的光子对。 作为非线性光学晶体11，可以使用周期性极化结构（11A）的钽酸锂，作为光谱仪（7），可以使用阵列波导光栅。 波分复用偏振纠缠光子对（5）可以用简单的设备生成。
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公开(公告)号：US07652770B2
公开(公告)日：2010-01-26
申请号：US11990627
申请日：2006-12-06
CPC分类号： G02F1/3511 , G01J9/02 , G02F1/3519
摘要： An optical nonlinear evaluation device (1) capable of accurately evaluating the optical nonlinearity of a Kerr medium in accordance with a phase difference caused by cross-phase modulation generated in the Kerr medium includes: a polarization Sagnac interference path (3) provided with a Kerr medium (4); an optical pulse light source (7) for supplying a signal beam (Dsig); a polarization beam splitter (PBS1) for splitting the signal beam (Dsig) into a signal beam (Hsig) and a signal beam (Vsig) polarized in a direction orthogonal to the signal beam (Hsig), for supplying the signal beam (Hsig) to a first side of the Kerr medium (4), and for supplying the signal beam (Vsig) to a second side of the Kerr medium (4); a glass plate (14) for entering, onto the signal beam (Hsig), a control beam (Vcont) for causing a change in phase difference between the signal beam (Hsig) and the signal beam (Vsig); separating means for separating the control beam (Vcont) from the signal beam (Hsig) having traveled through the Kerr medium (4); and a detection section (10) provided so as to detect the phase difference between the signal beam (Hsig) and the signal beam (Vsig).
摘要翻译： 能够根据由克尔介质中产生的交叉相位调制引起的相位差精确地评估克尔介质的光学非线性的光学非线性评估装置（1）包括：提供有克尔的极化Sagnac干涉路径（3） 中等（4）; 用于提供信号光束（Dsig）的光脉冲光源（7）; 用于将信号光束（Dsig）分离成信号光束（Hsig）的偏振分束器（PBS1）和与信号光束（Hsig）正交的方向偏振的信号光束（Vsig），用于提供信号光束（Hsig） 到所述克尔介质（4）的第一侧，并且用于将所述信号光束（Vsig）提供给所述克尔介质（4）的第二侧; 用于在信号光束（Hsig）上输入用于引起信号光束（Hsig）和信号光束（Vsig）之间的相位差变化的控制光束（Vcont）的玻璃板（14）; 分离装置，用于从已经穿过克尔介质（4）的信号光束（Hsig）分离控制光束（Vcont）; 以及检测部（10），以检测信号光束（Hsig）和信号光束（Vsig）之间的相位差。
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8.发明授权Method and apparatus of forming a magnetic disk with a servo sector and a data sector on a spiral track 有权在螺旋轨道上形成具有伺服扇区和数据扇区的磁盘的方法和装置公开(公告)号：US06466385B1
公开(公告)日：2002-10-15
申请号：US09673900
申请日：2000-12-07
申请人： Yoshio Umeda , Ryosuke Shimizu , Syuichi Yoshida , Tatsuaki Ishida , Kiyokazu Tohma , Keizo Miyata
发明人： Yoshio Umeda , Ryosuke Shimizu , Syuichi Yoshida , Tatsuaki Ishida , Kiyokazu Tohma , Keizo Miyata
IPC分类号： G11B586
CPC分类号： G11B5/865 , G11B5/012 , G11B5/5521 , G11B5/59655 , G11B5/82 , G11B21/083 , G11B21/10 , G11B21/106
摘要： A magnetic disk apparatus has: a head (2) that performs data recording and playback while moving relative to a magnetic disk (26) rotating at the prescribed speed; an actuator (3) that positions said head relative to said magnetic disk (26); and a controller (4) that detects the position of said head by means of servo sector that have positioning information recorded magnetically on said magnetic disk (1) and performs control to position said actuator (3) by means of this detection signal, wherein said magnetic disk (1) has at least a part in which the arrangement of tracks is spiral. The magnetic patterns on the disk include a servo sector and a data sector both formed on the same spiral track. The servo sector includes burst patterns for servo control.
摘要翻译： 磁盘装置具有：头部（2），其在相对于以规定速度旋转的磁盘（26）移动的同时执行数据记录和重放; 致动器（3），其将所述头相对于所述磁盘（26）定位; 以及控制器（4），其通过具有磁性地记录在所述磁盘（1）上的定位信息的伺服扇区来检测所述磁头的位置，并通过该检测信号执行控制以定位所述致动器（3），其中所述 磁盘（1）至少具有一部分轨道的排列是螺旋形的。 磁盘上的磁图案包括伺服扇区和数据扇区，两者形成在相同的螺旋轨道上。 伺服扇区包括用于伺服控制的突发模式。
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公开(公告)号：US5410988A
公开(公告)日：1995-05-02
申请号：US241015
申请日：1994-05-11
申请人： Hiroshi Miyama , Tetsuhiko Ohki , Hitoshi Kaji , Ryosuke Shimizu , Ryoichi Tanaka , Mamoru Matsuo , Masao Kawamoto , Hirokuni Kikukawa
发明人： Hiroshi Miyama , Tetsuhiko Ohki , Hitoshi Kaji , Ryosuke Shimizu , Ryoichi Tanaka , Mamoru Matsuo , Masao Kawamoto , Hirokuni Kikukawa
摘要： A tubular furnace uses a fluid to be heated which is prevented from coking or a heating tube which is prevented from burning. Heat is provided through a smaller heat transfer area and problems of corrosion at low temperature of the heating pipe in the tubular furnace due to sulfur content in the fuel are solved, to thereby achieve a high efficiency. A coil path(3) is divided into a plurality of zones(2a,2b,2c,2d), each with at least one regenerative-heating-type alternate combustion system(4). The system supply combustion air to burners(5,6) through regenerative beds(7,7) and the discharge of combustion gas therefrom. Combustion is independently controlled in each zone to create a desired heat flux pattern such that a boundary layer temperature of the fluid to be heated in the zones(2a,2b,2c,2d) of the coil path(3) is lower than a coking temperature or lower than an allowable maximum temperature to be determined by the material of the heating pipe.
摘要翻译： 管式炉使用防止被加热的流体被焦化或被防止燃烧的加热管。 通过较小的传热面积提供热量，解决了由于燃料中的硫含量导致管式炉内的加热管的低温下的腐蚀问题，从而达到高效率。 线圈路径（3）被分成多个区域（2a，2b，2c，2d），每个区域具有至少一个再生加热型交替燃烧系统（4）。 系统通过再生床（7,7）向燃烧器（5,6）供给燃烧空气，并从其中排出燃烧气体。 在每个区域中独立地控制燃烧以产生期望的热通量图案，使得线圈通道（3）的区域（2a，2b，2c，2d）中待加热流体的边界层温度低于焦化 温度或低于由加热管的材料确定的容许最高温度。
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公开(公告)号：US4761774A
公开(公告)日：1988-08-02
申请号：US866584
申请日：1986-05-23
CPC分类号： G11B7/135 , G11B7/08576 , G11B7/0941
摘要： An optical disc drive apparatus has a remarkably improved track accessing ability in comparison with conventional like apparatus. On a base are provided an optical system having a light emitting element and a light sensing element, as well as an optical path deflecting element which performs a precision tracking. Further, an objective lens and a light guide element are provided on a rotating element which performs track seek and rough tracking. The light guide element comprises two reflecting members which are opposed in parallel with each other.
摘要翻译： 与传统的类似装置相比，光盘驱动装置具有显着改进的轨道存取能力。 在基座上设置有具有发光元件和感光元件的光学系统，以及执行精密跟踪的光路偏转元件。 此外，物镜和导光元件设置在执行轨迹追踪和粗略跟踪的旋转元件上。 光导元件包括彼此平行地相对的两个反射部件。
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