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    Digital temperature compensation oscillator
    1.
    发明授权
    Digital temperature compensation oscillator 失效
    数字温度补偿振荡器

    公开(公告)号：US5170136A

    公开(公告)日：1992-12-08

    申请号：US754586

    申请日：1991-09-04

    申请人： Tsutomu Yamakawa ,  Kuichi Kubo ,  Hiroshi Yoshida

    发明人： Tsutomu Yamakawa ,  Kuichi Kubo ,  Hiroshi Yoshida

    IPC分类号： H03B5/32 ,  H03L1/02

    CPC分类号： H03L1/026

    摘要： A digital temperture compensation oscillator for digitally compensating a variation in oscillation frequency due to temperatures, by applying a compensation voltage to a voltage controlled oscillator, comprises temperature detection means, A/D conversion means, memory means, operation means and D/A conversion means. The temperature detection means detects temperatures when the voltage controlled oscillator is operated, and generates a temperature signal. The A/D conversion means receives the temperature signal, digitizes the temperature signal, and generates digital temperature data. The memory means stores compensation data corresponding to the compensation voltage as difference data at corresponding addresses. The difference data includes, when N-stage level difference data (N=a positive integer) are utilized, predetermined reference values of 0th difference data to (N-1)-th difference data of the compensation data and all N-th difference data. The operation means receives the digital temperature data and the difference data, and generates the compensation data on the basis of the difference data in response to the digital temperature data. The D/A conversion means receives the compensation data, converts the compensation data into an analog compensation voltage, and supplies the analog compensation voltage to the voltage controlled oscillator.

    摘要翻译： 一种数字温度补偿振荡器，其通过向压控振荡器施加补偿电压来对温度造成的振荡频率的变化进行数字补偿，包括温度检测装置，A / D转换装置，存储装置，操作装置和D / A转换装置 。 温度检测装置检测压控振荡器工作时的温度，并产生温度信号。 A / D转换装置接收温度信号，数字化温度信号，并产生数字温度数据。 存储装置将对应于补偿电压的补偿数据存储在相应地址处的差分数据。 差分数据包括当使用N级电平差数据（N =正整数）时，补偿数据的第0差分数据与第（N-1）个差分数据的预定参考值和所有第N个差分数据 。 操作装置接收数字温度数据和差分数据，并且响应于数字温度数据，基于差分数据生成补偿数据。 D / A转换装置接收补偿数据，将补偿数据转换成模拟补偿电压，并将模拟补偿电压提供给压控振荡器。

    Digital temperature-compensated oscillator
    2.
    发明授权
    Digital temperature-compensated oscillator 失效
    数字温度补偿振荡器

    公开(公告)号：US5081431A

    公开(公告)日：1992-01-14

    申请号：US644614

    申请日：1991-01-23

    申请人： Kuichi Kubo ,  Tsutomu Yamakawa ,  Hiroshi Yoshida

    发明人： Kuichi Kubo ,  Tsutomu Yamakawa ,  Hiroshi Yoshida

    IPC分类号： H03B1/00 ,  H03L1/02

    CPC分类号： H03L1/026 ,  H03B2201/0208 ,  H03L1/028

    摘要： A digital temperature-compensated oscillator comprises a crystal oscillator, a first memory previously storing digital temperature compensation data obtained by previously measuring the relation between the ambient temperatures and the frequency deviations of the crystal oscillator, a second memory for storing frequency offset amounts of the oscillation frequency of the crystal oscillator, a temperature sensor for outputting analog detection data relating to the ambient temperature, an A/D converter for converting the analog detection data to digital detection data, a readout circuit for reading out temperature compensation data corresponding to the digital detection data and stored in the first memory according to the digital detection data and reading out the frequency offset amount stored in the second memory according to the digital detection data, an operation circuit for effecting the following calculation by use of the readout temperature compensation data and readout frequency offset amount to derive digital control voltage,V.sub.c =V.sub.co +(K.sub.00 +V.sub.co K.sub.10 +K.sub.01 T).times.(.DELTA.F+.DELTA.F.sup.2 .times.K.sub.10 /2)where K.sub.00, K.sub.01 and K.sub.10 are constants, V.sub.co is an initial value of the control voltage, T is an ambient temperature and .DELTA.F is a frequency offset amount, a D/A converter for converting the digital control voltage into an analog control voltage, and a voltage-capacitance converter for receiving the analog control voltage and generating a control signal to be supplied to the crystal oscillator according to the received analog control voltage, wherein the frequency of the crystal oscillator is controlled according to the control signal.

    摘要翻译： 数字温度补偿振荡器包括晶体振荡器，预先存储通过预先测量环境温度与晶体振荡器的频率偏差之间的关系而获得的数字温度补偿数据的第一存储器，用于存储振荡的频率偏移量的第二存储器 晶体振荡器的频率，用于输出与环境温度有关的模拟检测数据的温度传感器，用于将模拟检测数据转换为数字检测数据的A / D转换器，读出与数字检测对应的温度补偿数据的读出电路 数据，并根据数字检测数据存储在第一存储器中，并根据数字检测数据读出存储在第二存储器中的频率偏移量;操作电路，用于通过使用读出的温度补偿数据和读出来进行以下计算 频率 偏移量导出数字控制电压，Vc = Vco +（K00 + VcoK10 + K01T）x（DELTA F + DELTA F2xK10 / 2）其中K00，K01和K10为常数，Vco为控制电压的初始值，T为环境 温度和DELTA F是频率偏移量，用于将数字控制电压转换为模拟控制电压的D / A转换器，以及用于接收模拟控制电压并产生要提供给晶体的控制信号的电压 - 电容转换器 振荡器根据接收的模拟控制电压，其中根据控制信号控制晶体振荡器的频率。

    Panoramic imaging apparatus
    4.
    发明授权
    Panoramic imaging apparatus 失效
    全景成像设备

    公开(公告)号：US08433033B2

    公开(公告)日：2013-04-30

    申请号：US12083777

    申请日：2006-10-19

    申请人： Yasuo Harata ,  Kazuyuki Araki ,  Koichi Ogawa ,  Tsutomu Yamakawa ,  Takashi Sue

    发明人： Yasuo Harata ,  Kazuyuki Araki ,  Koichi Ogawa ,  Tsutomu Yamakawa ,  Takashi Sue

    IPC分类号： A61B6/14 ,  G06K9/00

    CPC分类号： A61B6/14 ,  A61B6/583

    摘要： A panoramic imaging apparatus is provided, which is able to freely display a focus-optimized internal structural image of the tooth row depending on a position using image data acquired by only one-time X-ray panoramic imaging from an arbitrary section along a patient's tooth row.The panoramic imaging apparatus comprise an X-ray source (31) and a detector (32) outputting a digital electrical signal depending on an incident X-ray at a constant frame rate. This apparatus further comprises means (24) for moving a pair of the X-ray source and the detector around an object in a state where the X-ray source and the detector are opposed to each other with the object located therebetween, means (54) for sequentially storing, as frame data, the electrical signal outputted by the detector, means (56) for producing a panoramic image of a desired section of the object based on the frame data, and means (56, 57, 58) for producing a partial sectional image using the frame data, the partial sectional image being an image of a partial region specified on the panoramic image and being focused depending on a desired position in an imaging space.

    摘要翻译： 提供了一种全景成像装置，其能够根据使用从患者牙齿的任意部分仅通过一次X射线全景成像获得的图像数据的位置自由地显示齿列的焦点优化内部结构图像 行。 全景成像装置包括X射线源（31）和检测器（32），其以恒定的帧速率输出取决于入射的X射线的数字电信号。 该装置还包括用于在X射线源和检测器彼此相对的状态下使一对X射线源和检测器围绕物体移动的装置（24），其中物体位于它们之间，装置（54） ），用于将由检测器输出的电信号作为帧数据顺序存储，用于基于帧数据产生对象的期望部分的全景图像的装置（56），以及用于产生所述对象的装置（56,​​57,58） 使用帧数据的部分剖面图像，部分截面图像是在全景图像上指定的部分区域的图像，并且根据成像空间中的期望位置进行聚焦。

    RADIATION IMAGING APPARATUS AND IMAGING METHOD USING RADIATION
    5.
    发明申请
    RADIATION IMAGING APPARATUS AND IMAGING METHOD USING RADIATION 有权
    辐射成像装置和使用辐射的成像方法

    公开(公告)号：US20120328071A1

    公开(公告)日：2012-12-27

    申请号：US13387827

    申请日：2010-08-05

    申请人： Akitoshi Katsumata ,  Koichi Ogawa ,  Tsutomu Yamakawa ,  Masahiro Tsujita ,  Tatsuya Nagano ,  Kazuhide Kitou

    发明人： Akitoshi Katsumata ,  Koichi Ogawa ,  Tsutomu Yamakawa ,  Masahiro Tsujita ,  Tatsuya Nagano ,  Kazuhide Kitou

    IPC分类号： A61B6/14 ,  A61B6/03

    CPC分类号： A61B6/14 ,  A61B6/037 ,  A61B6/4028 ,  A61B6/469 ,  A61B6/5223

    摘要： A radiation imaging apparatus is provided. The apparatus has moving means moving a pair of an X-ray tube and a detector relatively to an object. The apparatus further has means which acquire digital frame data outputted from the detector. The frame data are acquired from the same portion being imaged of the same object at different time points. The apparatus has means which use the frame data to produce a plurality of three-dimensional optimally focused images at the respective time points, an actual position and shape of the portion being imaged being reflected in the images, and means which estimate changes of the plural three-dimensional optimally focused images.

    摘要翻译： 提供了一种放射线成像装置。 该装置具有相对于物体移动一对X射线管和检测器的移动装置。 该装置还具有获取从检测器输出的数字帧数据的装置。 从在不同时间点对同一对象成像的相同部分获取帧数据。 该装置具有使用帧数据在各个时间点产生多个三维最佳聚焦图像的装置，被成像部分的实际位置和形状被反映在图像中，以及估计多个图像的变化的装置 三维最佳聚焦图像。

    Surface mount type crystal oscillator
    6.
    发明授权
    Surface mount type crystal oscillator 失效

    公开(公告)号：US08008980B2

    公开(公告)日：2011-08-30

    申请号：US12584168

    申请日：2009-09-01

    申请人： Kouichi Moriya ,  Tsutomu Yamakawa ,  Hidenori Harima

    发明人： Kouichi Moriya ,  Tsutomu Yamakawa ,  Hidenori Harima

    IPC分类号： H03B1/00

    CPC分类号： H03H9/0547 ,  H03H9/1021 ,  Y10T29/49005

    摘要： A surface mount crystal oscillator comprises a crystal blank, an IC chip having an oscillation circuit integrated thereon, and a hermetic package for accommodating the crystal blank and IC chip therein. The hermetic package comprises a substantially rectangular ceramic substrate formed with a metal film which makes a round on one main surface thereof, and a concave metal cover having an open end face bonded to the metal film. The IC chip is secured to the one main surface of the ceramic substrate through ultrasonic thermo-compression bonding using bumps, the crystal blank is disposed above the IC chip, and the ceramic substrate has the one main surface formed as a flat surface.

    Hydraulic composition
    7.
    发明授权
    Hydraulic composition 有权
    液压成分

    公开(公告)号：US07985293B2

    公开(公告)日：2011-07-26

    申请号：US11882301

    申请日：2007-07-31

    申请人： Yoshiaki Sasage ,  Tsutomu Yamakawa

    发明人： Yoshiaki Sasage ,  Tsutomu Yamakawa

    IPC分类号： C04B24/24

    CPC分类号： C04B28/02 ,  C04B20/1018 ,  C04B2111/72 ,  C04B24/383 ,  C04B2103/402 ,  C04B2103/406 ,  C04B2103/50 ,  C04B14/06

    摘要： A hydraulic composition is provided. This composition exhibits an improved workability in its coating with a trowel, and accordingly, an improved working efficiency with no adverse effects on its physical properties. The hydraulic composition comprises at least one surfactant selected from anionic surfactants having foaming ability (group A), at least one surfactant selected from surfactants which are nonionic antifoaming agents (group B), and a water-soluble cellulose ether. The surfactants of group A and group B are respectively added at 0.000005 to 0.004% by weight (solid content) in relation to the powder ingredients in the hydraulic composition, and the water-soluble cellulose ether is added at 0.02 to 1.2% by weight of the hydraulic composition.

    摘要翻译： 提供水硬性组合物。 该组合物在用t刀涂料中表现出改进的可加工性，因此提高了工作效率，对其物理性质没有不利影响。 水硬性组合物包含至少一种选自具有发泡性的阴离子表面活性剂（A组），至少一种选自非离子消泡剂（B组）的表面活性剂和水溶性纤维素醚的表面活性剂的表面活性剂。 相对于水硬性组合物中的粉末成分，A组和B组的表面活性剂分别以0.000005〜0.004重量％（固体含量）添加，水溶性纤维素醚的添加量为0.02〜1.2重量％ 水硬组合物。

    Hydraulic composition
    8.
    发明授权
    Hydraulic composition 有权
    液压成分

    公开(公告)号：US07588635B2

    公开(公告)日：2009-09-15

    申请号：US12032078

    申请日：2008-02-15

    申请人： Tsutomu Yamakawa ,  Yoshiaki Sasage

    发明人： Tsutomu Yamakawa ,  Yoshiaki Sasage

    IPC分类号： C04B16/02 ,  C04B24/10

    CPC分类号： C04B28/02 ,  C04B28/14 ,  C04B40/0039 ,  C04B2111/62 ,  C04B14/06 ,  C04B24/383 ,  C04B2103/12 ,  C04B2103/22 ,  C04B2103/302 ,  C04B2103/50 ,  C04B14/28 ,  C04B22/064

    摘要： Hydraulic compositions comprising a setting accelerator, a water-soluble cellulose ether having a degree of alkyl substitution of 1.6 to 2.5 which is a water-soluble alkyl cellulose or a water-soluble hydroxyalkyl alkyl cellulose, and water are useful as self-leveling compositions having an excellent self-leveling capability, a minimal change with time of fluidity, and a short setting time, or as cement mortar compositions having a long open time and a short setting time.

    摘要翻译： 包含凝固促进剂，烷基取代度为1.6〜2.5的水溶性纤维素醚（水溶性烷基纤维素或水溶性羟烷基烷基纤维素）和水的水溶性组合物和水可用作自流平组合物，其具有 优异的自流平能力，流动性随时间的变化小，凝固时间短，或作为具有长打开时间和短凝固时间的水泥砂浆组合物。