Power amplifier having negative feedback circuit for transmitter
    33.
    发明授权
    Power amplifier having negative feedback circuit for transmitter 失效
    功率放大器具有用于发射器的负反馈电路

    公开(公告)号:US06693956B1

    公开(公告)日:2004-02-17

    申请号:US09672688

    申请日:2000-09-29

    申请人: Hiroyuki Yamamoto

    发明人: Hiroyuki Yamamoto

    IPC分类号: H04L516

    摘要: A power amplifier having a negative feedback circuit for a transmitter and a control method for its phase are arranged as follows. An I-component baseband signal is added to an I-component baseband feedback signal for producing an I-component adding signal. A Q-component baseband signal is added to a Q-component baseband feedback signal for producing a Q-component adding signal. A modulator orthogonally modulates a carrier signal by the I-component adding signal and the Q-component adding signal. An amplifying circuit operates to amplify the quadrature-modulated signal. A demodulating circuit orthogonally demodulates the part of the output of the amplifying circuit and the carrier signal and then outputs the I-component baseband feedback signal and the Q-component baseband feedback signal. Then, the phase of a selected one of the I-component baseband signal and the Q-component baseband signal is compared with the phase of the adding signal corresponding to the selected component baseband signal for detecting if a phase shift exists. If a phase shift exists, the phase of the carrier signal is adjusted so that the phase shift may be made smaller.

    摘要翻译: 具有用于发射机的负反馈电路的功率放大器及其相位的控制方法如下。 将I分量基带信号添加到用于产生I分量加法信号的I分量基带反馈信号。 将Q分量基带信号添加到Q分量基带反馈信号,以产生Q分量相加信号。 调制器通过I分量相加信号和Q分量相加信号对载波信号进行正交调制。 放大电路用于放大正交调制信号。 解调电路对放大电路的输出部分和载波信号进行正交解调,然后输出I分量基带反馈信号和Q分量基带反馈信号。 然后,将所选择的一个I分量基带信号和Q分量基带信号的相位与对应于所选择的分量基带信号的相加信号的相位进行比较,以检测是否存在相移。 如果存在相移,则调整载波信号的相位,使得可以使相移更小。

    Virtual architecture experience method and apparatus
    34.
    发明授权
    Virtual architecture experience method and apparatus 失效
    虚拟架构体验方法和设备

    公开(公告)号:US06683606B1

    公开(公告)日:2004-01-27

    申请号:US08808899

    申请日:1997-02-28

    IPC分类号: G06T1500

    CPC分类号: G06T15/10

    摘要: Three-dimensional geometric data of an architecture is generated, and image mapping data is generated by mapping a texture representing a pattern on the surface of the generated three-dimensional geometric data. A reflection of a virtual space is generated on the basis of the generated three-dimensional geometric data and image mapping data, and is changed in correspondence with movement of the viewpoint and/or the line of sight of the operator, so that the operator can interactively experience the virtual space of the architecture.

    摘要翻译: 生成架构的三维几何数据,并且通过将表示在生成的三维几何数据的表面上的图案的纹理映射来生成图像映射数据。 基于生成的三维几何数据和图像映射数据生成虚拟空间的反射,并且根据操作者的视点和/或视线的移动而改变,使得操作者可以 交互地体验架构的虚拟空间。

    Combined cycle power plant
    35.
    发明授权

    公开(公告)号:US06272841B1

    公开(公告)日:2001-08-14

    申请号:US09381292

    申请日:1999-09-22

    IPC分类号: F02C600

    摘要: A combined cycle power plant is disclosed, which has a backup function operating during the normal operation as well as when the plant is activated, so as to reliably maintain the steam cooling operation when an abnormal phenomenon occurs. In this power plant, the cool steam of the steam cooling system for cooling a high-temperature portion of the gas turbine is the high-pressure exhaust gas of the high-pressure turbine. When the exhaust gas is unexpectedly insufficient, high or medium-pressure steam output from the exhaust heat recovery boiler is introduced as cool steam into the steam cooling system, thereby reliably continuing the steam cooling operation.

    Polarization detection device and method for producing the same
    36.
    发明授权
    Polarization detection device and method for producing the same 失效
    极化检测装置及其制造方法

    公开(公告)号:US6166372A

    公开(公告)日:2000-12-26

    申请号:US85682

    申请日:1998-05-27

    IPC分类号: G02B6/126 G02B6/34 G02B6/42

    CPC分类号: G02B6/42 G02B6/126 G02B6/34

    摘要: A polarization detection device includes a photocoupler; an optical waveguide layer for propagating light from the photocoupler therethrough; a polarization splitter for splitting the propagation light into two components having different refractive angles; and a photodetector formed of a semiconductor material for performing photoelectric conversion on the propagation light split into the two components. The photocoupler, the optical waveguide layer, the polarization splitter, and the photodetector are provided on a single semiconductor substrate. The photocoupler is one of a prism and a beam splitter formed of a dielectric material and supported by the optical waveguide layer only by an adhesive layer, the adhesive layer having a straight edge in the vicinity of the photocoupler. The adhesive layer has a thickness d fulfilling expression (1) where a longer diameter of a beam spot of the light incident on the photocoupler on an interface between the adhesive layer and the optical waveguide layer is L, and the angle of incidence of the light with respect to the optical waveguide layer is .theta.:d.gtoreq.L/tan .theta. (1).

    摘要翻译: 偏振检测装置包括光电耦合器; 用于传播来自光电耦合器的光的光波导层; 偏振分离器,用于将传播光分成具有不同折射角的两个分量; 以及由半导体材料形成的光电检测器,用于对分成两个部件的传播光执行光电转换。 光电耦合器,光波导层,偏振分离器和光电检测器设置在单个半导体衬底上。 光电耦合器是由介电材料形成的棱镜和分束器之一,并且仅由粘合剂层由光波导层支撑,粘合剂层在光电耦合器附近具有直边。 粘合剂层的厚度d满足表达式(1),其中入射到光电耦合器上的粘合剂层和光波导层之间的界面上的光束的长度的直径较大,并且光的入射角 相对于光波导层为θ= d / L /tanθ(1)。

    Combined cycle electric power plant
    37.
    发明授权
    Combined cycle electric power plant 有权
    联合循环发电厂

    公开(公告)号:US6164056A

    公开(公告)日:2000-12-26

    申请号:US381612

    申请日:1999-09-23

    IPC分类号: F01K23/10 F02C6/18

    摘要: The present invention provides a combined cycle electric power generating plant that effectively reduces the noise produced by the exhaust of steam in the warm-up process or the like. This plant has a duct which drives the steam used for warming a steam cooling system which cools the high temperature parts which are cooled of the gas turbine at the start of the operation to an exhaust duct of the gas turbine. The steam used for warming a steam cooling system is directed to the exhaust duct of the gas turbine, and the noise which is produced by the exhaust of the steam for warming is silenced by the exhaust duct of the gas turbine.

    摘要翻译: PCT No.PCT / JP98 / 00263 Sec。 371 1999年9月23日第 102(e)1999年9月23日PCT PCT 1998年1月23日PCT公布。 第WO99 /​​ 37902号公报 日期:1999年7月29日本发明提供了一种组合循环发电设备,其有效地降低了预热过程等中的蒸汽排气产生的噪声。 该工厂具有驱动用于加热蒸汽冷却系统的蒸汽的管道,该蒸汽冷却系统将在操作开始时被冷却的燃气轮机的高温部件冷却到燃气轮机的排气管道。 用于加热蒸汽冷却系统的蒸汽被引导到燃气轮机的排气管道,并且由用于加热的蒸汽的排气产生的噪声被燃气轮机的排气管道沉没。

    Real-time image display method and apparatus displaying two different
visual resolutions
    39.
    发明授权
    Real-time image display method and apparatus displaying two different visual resolutions 失效
    显示两种不同视觉分辨率的实时图像显示方法和装置

    公开(公告)号:US5715384A

    公开(公告)日:1998-02-03

    申请号:US384530

    申请日:1995-02-01

    摘要: Real-time image processing apparatus and method for displaying two different visual resolutions includes structure and steps for detecting a position on a display screen at which an operator is looking. A center area of a predetermined size is determined and includes the detected position at which the operator is looking and another area different from the center area. Structure and steps are provided for determining a first image generation algorithm for a first image to be displayed on the center area and a second image generation algorithm for a second image to be displayed on another area. The first and second image generation algorithms are different from each other. Structure and steps are provided for generating the first and second images using the first and second image generation algorithms, respectively. Structure and steps are provided for causing a display of the first and second images together and having different visual resolutions.

    摘要翻译: 用于显示两种不同的视觉分辨率的实时图像处理装置和方法包括用于检测操作者正在看的显示屏幕上的位置的结构和步骤。 确定预定尺寸的中心区域并且包括检测到的操作者正在看的位置和与中心区域不同的另一区域。 提供了结构和步骤,用于确定要在中心区域上显示的第一图像的第一图像生成算法,以及第二图像生成算法,用于在另一区域上显示第二图像。 第一和第二图像生成算法彼此不同。 提供了结构和步骤,用于分别使用第一和第二图像生成算法来生成第一和第二图像。 提供结构和步骤用于使第一和第二图像一起显示并具有不同的视觉分辨率。

    Image processing method and apparatus for obtaining object data to
reconstruct the original image
    40.
    发明授权
    Image processing method and apparatus for obtaining object data to reconstruct the original image 失效
    用于获得对象数据以重建原始图像的图像处理方法和装置

    公开(公告)号:US5621827A

    公开(公告)日:1997-04-15

    申请号:US266683

    申请日:1994-06-28

    CPC分类号: G06T17/20

    摘要: An image processing method and the apparatus thereof for approximating an object shape and reconstructing the corresponding image by subjecting a radial range image to approximating with polygons and reconstructing an image from these polygons execute the following processes. At block B210, reading a radial range image data is executed. At block B220, a plural of different resolution radial range images are generated based upon the read radial range image. At block B230, normal vectors, according to each resolution of a radial range image, are calculated. At block B240, an edge-map having a plural of edges is generated in such a manner that a plural of edges are generated depending upon the resulting normal vectors and the radial range images of different resolutions. At block B250, the edge-maps of all kinds of resolutions are ORed to form a synthesized map. The synthesized map is subjected to correcting crossing and isolated edges. At block B260, each polygon is divided into a plural of triangles. At block B270, assigning 3 dimensional coordinate values and the normal vector generated at block B230 to each apex and the corresponding triangle plane respectively, is executed. At block B280, eliminating unnecessary triangle gaps around a T-shaped point is executed.

    摘要翻译: 一种图像处理方法及其装置,用于通过对径向范围图像进行多边形近似并从这些多边形重建图像来近似对象形状并重建对应图像,并执行以下处理。 在块B210,执行读取径向范围图像数据。 在块B220,基于读取的径向范围图像生成多个不同分辨率的径向范围图像。 在框B230,计算根据径向范围图像的每个分辨率的法向量。 在框B240,产生具有多个边缘的边缘图,使得根据得到的法向量和不同分辨率的径向范围图像生成多个边缘。 在方框B250,将各种分辨率的边缘图进行OR运算以形成合成图。 对合成图进行校正交叉和分离边。 在框B260,每个多边形被分成多个三角形。 在块B270,分别对每个顶点和对应的三角形平面分配三维坐标值和在框B230生成的法线矢量。 在框B280,执行消除T形点周围的不必要的三角形间隙。