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    • 1. 发明授权
    • Automatic document conveying device
    • US5223905A
    • 1993-06-29
    • US658384
    • 1991-02-20
    • Yasushi YamadaKazuhiro HirotaAkihiko Nishiki
    • Yasushi YamadaKazuhiro HirotaAkihiko Nishiki
    • G03B27/62G03G15/00
    • G03G15/60G03B27/6264G03G2215/00185
    • An automatic document conveying device comprising a paper-feeder for sequentially separating one document sheet from a stack of document sheets loaded on a document loading table and for sequentially transporting each document sheet to a standby position upstream of an image exposure section and for halting each document sheet at the standby position, the standby position being variably determined by the length of each document sheet. A conveyor conveys each document sheet from the standby position to an exposure position on the image exposure section on a glass surface of the document loading table, each document is discharged after it is scanned and exposed by the image exposure section. The image exposure section is controlled to scan and expose a first document sheet, and a second document sheet is halted at the standby position while the first document is being scanned and exposed. The first document sheet is discharged after it has been scanned and exposed, and the second document sheet is conveyed from the standby position to the image exposure position when discharge of the first document begins. A third document sheet is then conveyed to the standby position at least before the scanning and exposure of the second document at the image exposure position is completed. The paper-feeder, conveyor and discharge device are operated until the entire stack of documents loaded on the document loading table is scanned and exposed.
    • 4. 发明申请
    • OPTICAL TOMOGRAPHIC IMAGING SYSTEM AND OPTICAL TOMOGRAPHIC IMAGING METHOD
    • 光学成像系统和光学图像成像方法
    • US20130182261A1
    • 2013-07-18
    • US13813380
    • 2011-07-27
    • Kazuhiro Hirota
    • Kazuhiro Hirota
    • G01B9/02
    • G01B9/02091A61B1/00167A61B1/00172A61B5/0066A61B5/6852G01N21/4795
    • An optical tomographic imaging method according to one aspect of the present invention is a method of: splitting light emitted from a wavelength sweep light source into measuring light and reference light; radiating the measuring light onto a measuring subject; combining reflection light from the measuring subject with the reference light; detecting interfered light obtained by combining the reflection light with the reference light as an interference signal; and Fourier-transforming the interference signal to acquire a tomographic image of the measuring subject, and includes steps of: generating tomographic data of the measuring subject based on the interference signal; generating surface data of the measuring subject based on the interference signal; constructing a tomographic image that is based on the generated tomographic data; constructing a surface image that is based on the outputted surface data; and generating a display image from the tomographic image and the surface image.
    • 根据本发明的一个方面的光学断层成像方法是将从波长扫描光源发射的光分成测量光和参考光的方法; 将测量光照射到测量对象上; 将来自测量对象的反射光与参考光结合; 检测通过将反射光与参考光组合而获得的干扰光作为干扰信号; 对所述干涉信号进行傅立叶变换以获取所述测量对象的断层图像,并且包括以下步骤:基于所述干扰信号生成所述测量对象的断层数据; 基于干扰信号产生测量对象的表面数据; 构建基于所生成的断层数据的断层图像; 构造基于所输出的表面数据的表面图像; 以及从断层图像和表面图像生成显示图像。
    • 5. 发明授权
    • Optical apparatus for acquiring structure information and its processing method of optical interference signal
    • 用于获取结构信息的光学装置及其光干涉信号的处理方法
    • US08379945B2
    • 2013-02-19
    • US12646788
    • 2009-12-23
    • Kazuhiro Hirota
    • Kazuhiro Hirota
    • G06K9/00
    • A61B5/0066A61B5/7203A61B5/7239A61B5/7257G06K9/46G06K2209/053
    • An optical apparatus for acquiring structure information comprises an optical branching device which splits a light outputted from a wavelength-swept light source into a sampling light and a reference light; a scanning device which scans a subject having a layer structure with the sampling light; and an signal processing device which acquires optical structure information of the subject by processing an interference signal between a return light which is reflected or backscattered at the subject and the reference light which has propagated a predetermined optical path length; wherein the signal processing device includes: a layer information extraction device which extracts layer information of the subject based on the interference signal; a feature value calculation device which calculates a feature value of the layer information; and an enhanced layer-structure image construction device which constructs an enhanced layer-structure image in which the layer structure is enhanced based on the feature value.
    • 一种用于获取结构信息的光学装置,包括将从波长扫描光源输出的光分解成采样光和参考光的光分支装置; 扫描装置,其对具有采样光的层结构的对象进行扫描; 以及信号处理装置,其通过处理在被检体上反射或反向散射的返回光与已经传播了预定光程长度的基准光之间的干涉信号来获取被检体的光学结构信息; 其中所述信号处理装置包括:层信息提取装置,其基于所述干扰信号提取所述对象的层信息; 功能值计算装置,其计算层信息的特征值; 以及增强层结构图像构造装置,其基于特征值构建增强层结构图像,其中层结构被增强。
    • 10. 发明授权
    • Rotational imaging probe safety mechanism for conditional rotational speed reduction
    • 旋转成像探头安全机制,用于有条件的减速
    • US08157741B2
    • 2012-04-17
    • US11730064
    • 2007-03-29
    • Kazuhiro Hirota
    • Kazuhiro Hirota
    • A61B6/00
    • A61B8/4461A61B5/0066A61B5/02007A61B5/6852A61B8/12A61B8/14A61B8/445
    • An image diagnostic system controls a probe to perform rotational and axially-moving scanning within a body cavity and to acquire reflected signals through the probe. Based on the acquired reflected signals, the system forms and outputs tomographic image of the body cavity and biotissue surrounding the body cavity. The system is provided with a detection unit which detects a direction of movement of the probe in the axially-moving scanning and a control unit which controls the rotational speed of the probe in the rotational scanning. The control unit includes a determination unit which determines whether or not the rotational speed of the probe is to be changed upon detection of movement of the probe toward the distal direction within the body cavity, and changes the rotational speed of the probe upon determination of a change at the determination unit.
    • 图像诊断系统控制探头在体腔内执行旋转和轴向移动扫描,并通过探头获取反射信号。 基于获取的反射信号,系统形成并输出体腔的断层图像和围绕体腔的生物组织。 该系统设置有检测单元,该检测单元检测在轴向移动的扫描中的探针的移动方向,以及控制单元,其控制旋转扫描中的探针的旋转速度。 所述控制单元包括确定单元,所述确定单元在检测到所述探针朝向所述体腔内的远端方向的移动时,判定所述探针的旋转速度是否变化,并且在确定所述探针时,改变所述探针的旋转速度 在决定单位改变。