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1.发明授权Focus control device for use with an optical pickup comprising a refracting means 失效用于包括折射装置的光学拾取器的聚焦控制装置
公开(公告)号：US5687146A
公开(公告)日：1997-11-11
申请号：US229442
申请日：1994-04-13
申请人： Noriaki Murao , Takanori Maeda
发明人： Noriaki Murao , Takanori Maeda
CPC分类号： G11B7/127 , G11B7/0912 , G11B7/13 , G11B7/1365 , G11B7/1367
摘要： An optical pickup for reading information recorded on a recording surface of an optical information storage medium such as a compact disc or a laser video disc has a light beam source for emitting a linear light beam, and an optical system including an objective lens for converging the linear light beam as a linear image on the recording surface and collecting and emitting a light beam reflected from the recording surface. A focus control device includes a parallel flat glass plate for refracting the reflected light beam from the optical system, a photodetector having a plurality of photosensitive surfaces for photoelectrically converting the light beam applied thereto from the parallel flat glass plate into a plurality of respective detected signals, an error signal generator for processing the detected signals from the photodetector into a focus error signal indicative of whether the linear image is focused on the recording surface at the focal point of the objective lens, and an actuator responsive to the focus error signal for controlling the objective lens positionally with respect to the optical information storage medium to focus the linear image on the recording surface.
摘要翻译： 用于读取记录在诸如光盘或激光视盘之类的光学信息存储介质的记录表面上的信息的光学拾取器具有用于发射线性光束的光束源，以及包括物镜的光学系统，用于会聚 线性光束作为记录表面上的线性图像并且收集和发射从记录表面反射的光束。 聚焦控制装置包括用于折射来自光学系统的反射光束的平行平板玻璃板，具有多个感光表面的光电检测器，用于将从平行平板玻璃板施加到其上的光束光电转换成多个检测信号 误差信号发生器，用于将来自光电检测器的检测信号处理成指示该线性图像是聚焦在物镜焦点处的记录表面上的聚焦误差信号;以及响应于聚焦误差信号的致动器，用于控制 物镜相对于光学信息存储介质位置地将线性图像聚焦在记录表面上。
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2.发明授权Optical information recording medium and a reproducing apparatus for the recording medium 失效光学信息记录介质和用于记录介质的再现装置
公开(公告)号：US5379288A
公开(公告)日：1995-01-03
申请号：US25644
申请日：1993-03-03
申请人： Takanori Maeda , Noriaki Murao
发明人： Takanori Maeda , Noriaki Murao
IPC分类号： G11B7/00 , G11B7/004 , G11B7/0045 , G11B7/005 , G11B7/007 , G11B7/013 , G11B7/13 , G11B20/10 , G11B7/26 , G11B11/18
CPC分类号： G11B7/24085 , G11B20/10009 , G11B7/0045 , G11B7/005 , G11B7/13
摘要： An optical information recording medium, to and from which information can be recorded or reproduced at a high density, uses more number of kinds of pits than those of a conventional optical disc. A reproducing apparatus for such a medium also is devised. Information is recorded onto the recording medium by using a plurality of pit lengths which are obtained by dividing a whole frequency band below a cut-off frequency of MTF characteristic of a reproducing system into a plurality of bands in correspondence to the band characteristic and by allocating a plurality of spatial frequencies to the divided bands. The reproducing apparatus of the invention comprises an optical pickup to read out the recording information from the optical recording medium and signal demodulating means for demodulating the original data from the pulse width and amplitude value of the reproduction signal which is supplied from the optical pickup, wherein the optical pickup is designed to have an MTF characteristic such as to have one or a plurality of peaks at certain frequency positions.
摘要翻译： 可以以高密度记录或再现信息的光学信息记录介质使用比常规光盘更多数量的凹坑。 还设计了这种介质的再现装置。 信息通过使用通过将再现系统的MTF特性的截止频率以下的整个频带划分成与频带特性相对应的多个频带而获得的多个凹坑长度并通过分配来记录在记录介质上 对分割频带的多个空间频率。 本发明的再现装置包括一个光拾取器，用于从光学记录介质读出记录信息和信号解调装置，用于根据从光学拾取器提供的再现信号的脉冲宽度和振幅值对原始数据进行解调，其中 光学拾取器被设计为具有MTF特性，例如在某些频率位置具有一个或多个峰值。
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公开(公告)号：US5420847A
公开(公告)日：1995-05-30
申请号：US69850
申请日：1993-06-01
申请人： Takanori Maeda , Toru Akiyama , Fumitaka Kotaka , Noriaki Murao
发明人： Takanori Maeda , Toru Akiyama , Fumitaka Kotaka , Noriaki Murao
CPC分类号： G11B7/14
摘要： A plurality of tracks are spirally arranged in a group on an optical disc. The tracks in the group are simultaneously radiated by laser beams. Adjacent tracks in the group are disposed at a radial distance d1, and adjacent spots of the laser beams on the tracks are disposed at a radial distance ds which is smaller than the distance d1.
摘要翻译： 多个轨道被螺旋地布置在光盘上的组中。 组中的轨道被激光束同时辐射。 组中的相邻轨道设置在径向距离d1处，并且轨道上的激光束的相邻点设置在比距离d1小的径向距离ds处。
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公开(公告)号：US5303221A
公开(公告)日：1994-04-12
申请号：US72941
申请日：1993-06-08
申请人： Takanori Maeda , Noriaki Murao
发明人： Takanori Maeda , Noriaki Murao
CPC分类号： G11B7/1353 , G11B2007/0006
摘要： An optical pickup has a light source for generating a first light having a longer wavelength and a second light having a shorter wavelength, an objective, and a phase hologram disposed between the light source and the objective. The objective is designed to have a larger spherical aberration for the first light than a spherical aberration for the second light. The phase hologram is arranged to give a phase difference of an integer multiple of 2.pi. for the second light. The phase hologram is further arranged so that a spherical aberration given to the first light has an opposite polarity to the polarity of the spherical aberration given by the objective.
摘要翻译： 光拾取器具有用于产生具有较长波长的第一光和具有较短波长的第二光，物镜和设置在光源与物镜之间的相位全息图的光源。 该目的被设计为对于第一光具有比用于第二光的球面像差更大的球面像差。 相位全息图被布置成给出第二光的2（pi）的整数倍的相位差。 相位全息图被进一步布置成使得给予第一光的球面像差与由物镜给出的球面像差的极性具有相反的极性。
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公开(公告)号：US20120228504A1
公开(公告)日：2012-09-13
申请号：US13498795
申请日：2009-09-29
IPC分类号： G01J5/02
CPC分类号： G01J5/02 , B81B3/007 , B81B2201/0278 , B81B2203/0127 , B81B2203/019 , G01J5/024
摘要： A MEMS sensor has a membrane 3 in a polygon released via a support portion 2, and the membrane 3 has a reinforcement rib portion 6 made up of a plurality of radially extending rib portions 6a and a plurality of divisional membranes 7 constructed between adjacent two rib portions 6a, 6a and formed in a polygon with the two rib portions 6a, 6a as two sides.
摘要翻译： MEMS传感器具有通过支撑部分2释放的多边形膜3，膜3具有由多个径向延伸的肋部分6a和多个分隔膜7构成的加强肋部分6，该分隔膜7在相邻的两个肋 部分6a，6a并且以两个肋部6a，6a为两侧形成为多边形。
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公开(公告)号：US20110260062A1
公开(公告)日：2011-10-27
申请号：US13141604
申请日：2008-12-22
摘要： An infrared ray sensor and a method of fabricating the same is provided to increase detection sensitivity and to be easily fabricated with high yield rate. Provided herein is an infrared ray sensor having a frame-shaped substrate section formed in a square frame shape, a projecting base material section formed inside the frame-shaped substrate section and elongating to an incident direction of an infrared ray, and an infrared ray detection section provided on at least an upper lateral surface of the projecting base material section. The projecting base material section is made up of a plurality of rib-like element base material sections having a plurality of vertical base material sections and horizontal base material sections combined in a lattice shape.
摘要翻译： 提供一种红外线传感器及其制造方法以提高检测灵敏度并且以高产率容易地制造。 本发明提供一种红外线传感器，其具有形成为正方形框状的框状基板部，在框状的基板部内形成的伸长到红外线的入射方向的突出的基材部，以及红外线检测 该截面设置在突出的基材部分的至少一个上侧表面上。 突起基材部分由具有多个垂直基材部分和以格子形状组合的水平基材部分的多个肋状元件基材部分组成。
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公开(公告)号：US07945963B2
公开(公告)日：2011-05-17
申请号：US12295022
申请日：2007-03-30
IPC分类号： G11B5/33
CPC分类号： G11B9/149 , B82Y10/00 , G11B9/1436 , H02K7/14 , H02K41/03
摘要： A first thermal buffer layer and a second thermal buffer layer are arranged between a recording medium and an actuator structure. The heat conductivity of the first thermal buffer layer is set low and the heat conductivity of the second thermal buffer layer is set high. Most of the heat generated from a coil wiring of the actuator structure is blocked by the first thermal buffer layer, and heat leaked from the first thermal buffer layer is diffused by the second thermal buffer layer. Temperature distribution on the recording medium is made uniform, and thus, a configuration wherein the recording medium and the actuator structure are placed one over another can be provided, information reading accuracy or information recording stability can be improved and the sizes of an information storage device can be reduced.
摘要翻译： 第一热缓冲层和第二热缓冲层布置在记录介质和致动器结构之间。 第一热缓冲层的导热率设定得较低，第二热缓冲层的导热率设定得较高。 由致动器结构的线圈布线产生的大部分热量被第一热缓冲层阻挡，并且从第一热缓冲层泄漏的热量被第二热缓冲层扩散。 可以提供记录介质上的温度分布均匀，因此可以提供将记录介质和致动器结构彼此放置的结构，可以提高信息读取精度或信息记录稳定性，并且可以提高信息存储装置的尺寸 可以减少
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8.发明授权Signal generating apparatus and method, recording apparatus and method, reproducing apparatus and method, recording/reproducing apparatus and method, computer program, and recording medium 失效信号发生装置和方法，记录装置和方法，再现装置和方法，记录/再现装置和方法，计算机程序和记录介质公开(公告)号：US07881175B2
公开(公告)日：2011-02-01
申请号：US11667961
申请日：2005-11-17
申请人： Takanori Maeda
发明人： Takanori Maeda
IPC分类号： G11B7/00
CPC分类号： G11B9/02 , G11B20/10259 , G11B20/1403 , G11B2020/10953
摘要： A recording/reproducing apparatus (100) is provided with comprising: recording devices (131a-131e) for recording record signals (WS1-WS5) in parallel and in synchronization with a record clock; a signal generating device (143) for generating record signals such that a reproduction clock synchronized with the record clock can be generated on the basis of the reproduced record signals, if the plurality of record signals are reproduced in parallel; reproducing devices (131a-131e) for reproducing the record signals in parallel; and a clock generating device (154) for generating a reproduction clock.
摘要翻译： 一种记录/再现装置（100），包括：用于记录记录信号（WS1-WS5）并记录并与记录时钟同步的记录装置（131a-131e） 信号产生装置，用于产生记录信号，使得如果并行再现多个记录信号，则可以基于再现的记录信号生成与记录时钟同步的再现时钟; 用于再现并行记录信号的再现装置（131a-131e） 以及用于产生再现时钟的时钟产生装置（154）。
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公开(公告)号：US07738351B2
公开(公告)日：2010-06-15
申请号：US11887375
申请日：2006-03-31
申请人： Takanori Maeda
发明人： Takanori Maeda
CPC分类号： B82Y10/00 , G11B9/02 , G11B9/1472
摘要： A signal processing circuit is provided with a signal input layer having a plurality of signal input sections which receive signal input; a plurality of signal processing layers whereupon a plurality of signal processing sections, which are arranged corresponding to each of the signal input sections and processes in parallel signals from the signal input sections, are dispersed; and connecting lines for associating and connecting the signal input sections with the signal processing sections, respectively. The size of a region occupied by each of the signal processing sections on the signal processing layers is larger than the arrangement intervals between the signal input sections on the signal input layers.
摘要翻译： 信号处理电路设置有具有接收信号输入的多个信号输入部分的信号输入层; 多个信号处理层，其中分散对应于每个信号输入部分并且处理来自信号输入部分的并行信号的多个信号处理部分; 以及用于将信号输入部分与信号处理部分相关联并连接的连接线。 信号处理层上的每个信号处理部分占据的区域的大小大于信号输入层上的信号输入部分之间的排列间隔。
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10.发明申请公开(公告)号：US20100033159A1
公开(公告)日：2010-02-11
申请号：US12532129
申请日：2007-03-20
IPC分类号： G01N27/00
摘要： A physical properties detection device comprising a probe to be placed near or touching a surface of a ferroelectric; an oscillation loop including the probe and capacitance within the ferroelectric; and detection means for detecting a physical properties of the ferroelectric on the basis of a frequency variation of a measurement signal generated in the oscillation loop, the frequency variation accompanying application of an alternating electric field to the ferroelectric; and the physical properties detection device is further comprising frequency conversion means for converting the frequency of the measurement signal to a low frequency and outputting the resulting signal as a converted measurement signal; frequency control means for controlling the frequency of the converted measurement signal so as to match a target frequency; frequency detection means for generating a frequency detection signal that has a signal level corresponding to the frequency of the converted measurement signal; and synchronous detection means for synchronously detecting the frequency detection signal on the basis of a synchronization signal.
摘要翻译： 一种物理特性检测装置，包括放置在铁电体表面附近或接触铁电体的探针; 包括铁电体内探针和电容的振荡回路; 以及检测装置，用于基于在振荡环路中产生的测量信号的频率变化，伴随向铁电体施加交变电场的频率变化来检测铁电体的物理性质; 物理特性检测装置还包括频率转换装置，用于将测量信号的频率转换为低频，并将所得信号作为转换的测量信号输出; 频率控制装置，用于控制转换的测量信号的频率以便匹配目标频率; 频率检测装置，用于产生具有与转换的测量信号的频率对应的信号电平的频率检测信号; 以及用于基于同步信号同步检测频率检测信号的同步检测装置。
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