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    • 31. 发明申请
    • Signal processing unit
    • 信号处理单元
    • US20050213165A1
    • 2005-09-29
    • US10946505
    • 2004-09-21
    • Hiroyuki Yamamoto
    • Hiroyuki Yamamoto
    • G06T1/00H04N1/028H04N1/40H04N1/407H04N1/409
    • H04N1/409H04N1/40
    • There is described a signal processing apparatus, which conducts processing of a signal outputted from an image capturing element that converts an optical image obtained by irradiating light on an object such as document to an electric signal. The apparatus includes: a sample-and-hold section to sample and hold a black signal level and an image signal level, both included in an analogue image signal inputted from an image capturing element; an analogue-to-digital converting section to convert the analogue image signal to digital image data within a predetermined number of conversion steps, which is larger than a number of conversion steps corresponding to a differential value between the black signal level and the image signal level; and a digital subtracting section to subtract black digital-image data representing the black signal level from signal digital-image data representing the image signal level, both being converted by the analogue-to-digital converting section.
    • 描述了一种信号处理装置,其对从图像拍摄元件输出的信号进行处理,该图像摄影元件将通过将诸如文档的对象照射光而获得的光学图像转换为电信号。 该装置包括:采样保持部分,用于采样和保持黑色信号电平和图像信号电平,两者都包括在从图像捕获元件输入的模拟图像信号中; 模拟数字转换部分,用于在预定数量的转换步骤中将模拟图像信号转换为数字图像数据,该转换步长大于与黑色信号电平和图像信号电平之间的差分值相对应的转换步骤的数量 ; 以及数字减法部分,用于从表示图像信号电平的信号数字图像数据中减去表示黑色信号电平的黑色数字图像数据,两者都由模数转换部分转换。
    • 34. 发明授权
    • Power amplifier having negative feedback circuit for transmitter
    • 功率放大器具有用于发射器的负反馈电路
    • US06693956B1
    • 2004-02-17
    • US09672688
    • 2000-09-29
    • Hiroyuki Yamamoto
    • Hiroyuki Yamamoto
    • H04L516
    • H04L27/368H03F1/345H04L2027/0022
    • 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.
    • 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。
    • 37. 发明授权
    • Polarization detection device and method for producing the same
    • 极化检测装置及其制造方法
    • US6166372A
    • 2000-12-26
    • US85682
    • 1998-05-27
    • Hiroyuki YamamotoYoshio Yoshida
    • Hiroyuki YamamotoYoshio Yoshida
    • G02B6/126G02B6/34G02B6/42
    • G02B6/42G02B6/126G02B6/34
    • 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).
    • 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)。
    • 38. 发明授权
    • Combined cycle electric power plant
    • 联合循环发电厂
    • US6164056A
    • 2000-12-26
    • US381612
    • 1999-09-23
    • Hiroyuki YamamotoJun Yasuraoka
    • Hiroyuki YamamotoJun Yasuraoka
    • F01K23/10F02C6/18
    • F01K23/106F05B2260/233Y02E20/16
    • 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.
    • 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。
    • 40. 发明授权
    • Real-time image display method and apparatus displaying two different
visual resolutions
    • 显示两种不同视觉分辨率的实时图像显示方法和装置
    • US5715384A
    • 1998-02-03
    • US384530
    • 1995-02-01
    • Toshikazu OhshimaHiroyuki YamamotoShinji Uchiyama
    • Toshikazu OhshimaHiroyuki YamamotoShinji Uchiyama
    • G02B27/00G02B27/01G06T11/00G06T19/00G06T3/40
    • G06T15/00G02B27/01G02B27/0101H04N5/44G02B2027/0187
    • 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.
    • 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。