公开(公告)号：US5610885A

公开(公告)日：1997-03-11

申请号：US527895

申请日：1995-09-14

申请人： Naomasa Takahashi

发明人： Naomasa Takahashi

IPC分类号： G11B21/08 ,  G11B7/085

CPC分类号： G11B7/08588 ,  G11B7/08529

摘要： According to an optical head device access mechanism, drive coils, which provide propulsive force for moving an objective lens, and position sensors, which detect the position of the slide base, are arranged at a position where all driving force and frictional force corresponding to the driving force can be surely detected. The present position of the slide base corresponding to a level of a drive current supplied to the drive coils and its moving speed are converted to a compensation driving current for generating driving force corresponding to driving force lost by frictional force by a position/speed controlling circuit.

摘要翻译： 根据光学头装置的存取机构，将提供用于移动物镜的推进力的驱动线圈和检测滑动基座的位置的位置传感器布置在所有驱动力和摩擦力对应于 可以肯定地检测到驱动力。 对应于提供给驱动线圈的驱动电流的电平及其移动速度的滑座的当前位置被转换成用于产生与通过位置/速度控制电路的摩擦力损失的驱动力相对应的驱动力的补偿驱动电流 。

公开(公告)号：US4960321A

公开(公告)日：1990-10-02

申请号：US270327

申请日：1988-11-14

申请人： Naomasa Takahashi

发明人： Naomasa Takahashi

IPC分类号： G11B7/09

CPC分类号： G11B7/0932

摘要： An optical apparatus for focusing a light beam, in which a supporting device such as rod members supports a directing device such as an object lens for directing the light beam to an optical memory such as an optical or magnetooptical disk, a linking device for flexibly links one end of the supporting device to the directing device, and a holding device for flexibly holds the other end of the supporting device to a fixed member.

公开(公告)号：US08441687B2

公开(公告)日：2013-05-14

申请号：US12733414

申请日：2008-09-02

申请人： Makoto Tsukamoto ,  Jun Hirai ,  Ayataka Nishio ,  Naomasa Takahashi

发明人： Makoto Tsukamoto ,  Jun Hirai ,  Ayataka Nishio ,  Naomasa Takahashi

IPC分类号： H04N1/40 ,  G06K9/00

CPC分类号： G09G3/2044 ,  G09G5/02 ,  G09G2320/02 ,  G09G2340/0428 ,  H04N1/4052

摘要： An image processing apparatus which may include a grayscale modulator forming a ΔΣ modulator. The modulator may include an adder that adds the pixel value of an image and an output of a feedback arithmetic unit, a quantizing unit that quantizes an output of the adder and outputs a quantized value including a quantization error as the result of ΔΣ modulation, a subtractor that calculates the quantization error, and the feedback arithmetic unit that filters the quantization error and outputs the filtering result to the adder. The filter coefficient of filtering by the feedback arithmetic unit may be determined such that the amplitude characteristics of noise shaping by the ΔΣ modulator in a frequency band that is equal to or more than an intermediate frequency band are the inverse characteristics of the spatial frequency characteristics of the human eye.

摘要翻译： 一种图像处理装置，其可以包括形成ΔΣ调制器的灰度调制器。 调制器可以包括加法器，其将图像的像素值和反馈算术单元的输出相加，量化单元，其量化加法器的输出，并输出包括作为ΔΣ调制的结果的量化误差的量化值， 计算量化误差的减法器和滤波量化误差的反馈运算单元，并将滤波结果输出到加法器。 可以确定反馈算术单元的滤波滤波器系数，使得ΔΣ调制器在等于或大于中频带的频带中的噪声整形的振幅特性是空间频率特性的反特性 人眼。

公开(公告)号：US20090201516A1

公开(公告)日：2009-08-13

申请号：US12322822

申请日：2009-02-06

申请人： Naomasa Takahashi ,  Ayataka Nishio ,  Jun Hirai ,  Makoto Tsukamoto

发明人： Naomasa Takahashi ,  Ayataka Nishio ,  Jun Hirai ,  Makoto Tsukamoto

IPC分类号： H04N1/60

CPC分类号： G09G5/006 ,  G09G3/2022 ,  G09G3/2044 ,  G09G3/2059 ,  G09G2340/04 ,  G09G2370/042 ,  G09G2370/047 ,  G09G2370/12

摘要： An image processing apparatus includes: a filter-coefficient storing unit that stores filter coefficients respectively associated with spatial frequencies, which are the numbers of strips displayed per unit angle with respect to an angle of field of a display apparatus; a viewing-condition determining unit that determines, as viewing conditions, a viewing distance between a viewer and the display apparatus and pixel density of the display apparatus; a filter-coefficient setting unit that sets a filter coefficient selected on the basis of a spatial frequency calculated from the viewing conditions among the stored filter coefficients; and a gradation modulating unit including a quantizing unit that quantizes a pixel value in a predetermined coordinate position in an image signal and outputs the pixel value as a quantized pixel value in the predetermined coordinate position, the gradation modulating unit gradation-modulating the image signal by multiply-accumulating a set filter coefficient with respect to quantization errors caused by the quantizing unit to feedback the quantization errors to an input side of the quantizing unit.

摘要翻译： 一种图像处理装置包括：滤波器系数存储单元，其存储分别与空间频率相关联的滤波器系数，空间频率是相对于显示装置的视场角度每单位角度显示的条带数; 观看条件确定单元，其将观看者和显示设备之间的观看距离和显示设备的像素密度确定为观看条件; 滤波器系数设定单元，其根据从存储的滤波器系数的观看条件计算出的空间频率来设定选择的滤波器系数; 以及灰度调制单元，其包括量化单元，其量化图像信号中的预定坐标位置中的像素值，并将像素值作为量化像素值输出到预定坐标位置，灰度调制单元通过灰度调制单元对图像信号进行灰度调制 对由量化单元引起的量化误差乘以累积滤波器系数，以将量化误差反馈到量化单元的输入侧。

公开(公告)号：US06725286B2

公开(公告)日：2004-04-20

申请号：US09942511

申请日：2001-08-29

申请人： Naomasa Takahashi

发明人： Naomasa Takahashi

IPC分类号： G06F1312

CPC分类号： G11C5/063

摘要： The invention relates to an information-processing apparatus, an information-processing method, a memory card and a program storage medium. A memory card has VSS pins connected to the ground, a BS (Bus State) pin for receiving a bus-state signal, VCC pins for receiving a voltage of a power supply, an interrupt pin for outputting interrupt data, a clock pin for receiving a clock signal and reserved pins conforming to a USB standards. When the memory card is inserted into a personal computer, the reserved pins are connected to a USB-host-controller IC employed in the personal computer so that serial data conforming to the USB standards can be exchanged between the memory card and the personal computer. With this configuration, a desired function can be added to the memory card.

摘要翻译： 本发明涉及信息处理装置，信息处理方法，存储卡和程序存储介质。 存储卡具有连接到地的VSS引脚，用于接收总线状态信号的BS（总线状态）引脚，用于接收电源电压的VCC引脚，用于输出中断数据的中断引脚，用于接收的时钟引脚 时钟信号和符合USB标准的保留引脚。 当将存储卡插入个人计算机时，保留的引脚连接到个人计算机中使用的USB主机控制器IC，以便可以在存储卡和个人计算机之间交换符合USB标准的串行数据。 通过这种配置，可以将所需的功能添加到存储卡。

公开(公告)号：US08295636B2

公开(公告)日：2012-10-23

申请号：US12322297

申请日：2009-01-30

申请人： Makoto Tsukamoto ,  Jun Hirai ,  Ayataka Nishio ,  Naomasa Takahashi

发明人： Makoto Tsukamoto ,  Jun Hirai ,  Ayataka Nishio ,  Naomasa Takahashi

IPC分类号： G06K9/36

CPC分类号： H04N1/4052 ,  G09G3/2048 ,  G09G3/2059

摘要： A gradation converting device that converts gradation of an image includes: a dither unit that applies dither to the image by adding random noise to a pixel value forming the image; and a one-dimensional ΔΣ modulation unit that applies one-dimensional ΔΣ modulation to the image applied with the dither.

摘要翻译： 转换图像灰度的灰度转换装置包括：抖动单元，其通过对形成图像的像素值添加随机噪声来对图像施加抖动; 和一维＆Dgr＆ 调制单元，应用一维＆Dgr;＆Sgr; 对使用抖动的图像进行调制。

公开(公告)号：US08237741B2

公开(公告)日：2012-08-07

申请号：US12265159

申请日：2008-11-05

申请人： Makiko Shimada ,  Naomasa Takahashi ,  Jun Hirai ,  Yukio Takeyari ,  Makoto Tsukamoto

发明人： Makiko Shimada ,  Naomasa Takahashi ,  Jun Hirai ,  Yukio Takeyari ,  Makoto Tsukamoto

IPC分类号： G09G5/00

CPC分类号： H04N5/44504 ,  G09G5/346 ,  G09G5/393 ,  H04N5/772 ,  H04N5/85 ,  H04N5/91 ,  H04N9/804 ,  H04N9/8205 ,  H04N21/4122 ,  H04N21/42646 ,  H04N21/4307 ,  H04N21/431 ,  H04N21/43632

摘要： An image processing apparatus that displays, on a display region having a first number of pixels, an image represented by gigantic image data that is recorded in a recording medium and has a second number of pixels that is significantly greater than the first number of pixels, including: a reproducing unit configured to read image data from the recording medium; an output unit configured to output the image data, which is read by the reproducing unit from the recording medium, in synchronization with a vertical synchronization signal; and a control unit configured to control the reproducing unit and the output unit. The control unit performs control to extract and read a region corresponding to the display region from the gigantic image data recorded in the recording medium.

摘要翻译： 一种图像处理装置，在具有第一数量的像素的显示区域上显示由记录在记录介质中的巨大图像数据表示的图像，并且具有明显大于第一数量像素的第二数量的像素， 包括：再现单元，被配置为从记录介质读取图像数据; 输出单元，被配置为与垂直同步信号同步地从记录介质输出由再现单元读取的图像数据; 以及控制单元，被配置为控制再现单元和输出单元。 控制单元执行控制以从记录在记录介质中的巨大图像数据中提取和读取对应于显示区域的区域。

公开(公告)号：US20070118806A1

公开(公告)日：2007-05-24

申请号：US10485021

申请日：2003-05-26

申请人： Hirotaka Kondo ,  Naomasa Takahashi

发明人： Hirotaka Kondo ,  Naomasa Takahashi

IPC分类号： G06F17/00

CPC分类号： G06F17/30876

摘要： An electronic apparatus capable of displaying linked pages in turn by an easy operation for users is provided. In a element in an SMIL document, the attribute ??dur=t is added to URI description for specifying a media element. The resulting notation implies that a file name placed before ?? indicates a designated page and a link destination of the designated page is displayed. A numerical value following dur= indicates the duration for which a given link contained in the designated page can be activated. An SMIL player interprets an SMIL document having such a description, so as to allow auto-linking to the link destinations of the designated page with the defined link intervals.

摘要翻译： 提供了能够通过用户容易的操作依次显示链接页面的电子设备。 在SMIL文档中的元素中，将属性?? dur = t添加到用于指定媒体元素的URI描述中。 结果符号意味着文件名放在前面 指示指定页面，并且指示页面的链接目的地被显示。 dur =之后的数值表示可以激活指定页面中包含的给定链接的持续时间。 SMIL播放器解释具有这种描述的SMIL文档，以便允许以指定的链接间隔自动链接到指定页面的链接目的地。

公开(公告)号：US06181326B2

公开(公告)日：2001-01-30

申请号：US08754271

申请日：1996-11-20

申请人： Naomasa Takahashi

发明人： Naomasa Takahashi

IPC分类号： G09G508

CPC分类号： G06F3/0219 ,  G06F3/002 ,  H04N5/4401 ,  H04N21/422 ,  H04N21/4223 ,  H04N21/4622 ,  H04N21/47

摘要： A remote input unit such as OCR sends a batch of data of an input character string as a remote control signal, a set-top box (STB) receives the signal and decodes it to the data of the original character string. After STB stores the data of the character string, it instructs a television set to display the data. STB accesses to a terminal corresponding to URL of the character string in the Internet via a telephone line.

摘要翻译： 诸如OCR的远程输入单元将一批输入字符串的数据作为遥控信号发送，机顶盒（STB）接收信号并将其解码为原始字符串的数据。 STB存储字符串的数据后，指示电视机显示数据。 STB通过电话线访问对应于因特网中的字符串的URL的终端。

公开(公告)号：US5966354A

公开(公告)日：1999-10-12

申请号：US745127

申请日：1996-11-08

申请人： Naomasa Takahashi ,  Akihiro Kasahara

发明人： Naomasa Takahashi ,  Akihiro Kasahara

IPC分类号： G11B7/00 ,  G11B7/09 ,  G11B7/135 ,  G11B19/12

CPC分类号： G11B7/1372 ,  G11B19/12 ,  G11B7/093 ,  G11B7/0933 ,  G11B7/0945 ,  G11B2007/0006

摘要： A first objective lens and a second objective lens are fixedly mounted on a lens holder. The lens holder has four magnetic members embedded in a side thereof about an axis of rotation. The magnetic members are associated with coils respectively. The lens holder is rotatable supported by a support which has four permanent magnets fixedly mounted on a side thereof corresponding to the four coils. A pair of the magnets located opposite to each other is for the focusing control and the other pair of the magnets located opposite to each other is for the tracking control and the objective lens switching control. When the coils corresponding to the magnets are loaded with a switching signal, they turns the lens holder to switch the objective lenses from one to the other. When the coils corresponding to the magnets are loaded with a tracking drive signal, they perform the tracking control. When the coils corresponding to the magnets are loaded with a focusing drive signal, they perform the focusing control. At the beginning of operation, the objective lens drive apparatus can be initialized by feeding the switching signal to either pair of the coils so that the objective lens is set across a light path.

摘要翻译： 第一物镜和第二物镜固定地安装在透镜架上。 透镜架具有围绕旋转轴嵌入其一侧的四个磁性构件。 磁性部件分别与线圈相关联。 透镜保持器由支撑件可旋转地支撑，该支架具有固定地安装在与四个线圈对应的一侧上的四个永磁体。 位于彼此相对的一对磁体用于聚焦控制，并且彼此相对定位的另一对磁体用于跟踪控制和物镜切换控制。 当对应于磁体的线圈装载有切换信号时，它们转动透镜架以将物镜从一个切换到另一个。 当对应于磁体的线圈装载有跟踪驱动信号时，它们执行跟踪控制。 当对应于磁体的线圈加载聚焦驱动信号时，它们进行聚焦控制。 在操作开始时，可​​以通过将开关信号馈送到任一对线圈来初始化物镜驱动装置，使得物镜跨越光路设置。