Paper sheet recognition apparatus and paper sheet recognition method
    1.
    发明授权
    Paper sheet recognition apparatus and paper sheet recognition method 有权
    纸张识别装置和纸张识别方法

    公开(公告)号:US08965099B2

    公开(公告)日:2015-02-24

    申请号:US13546164

    申请日:2012-07-11

    摘要: A paper sheet recognition apparatus recognizes whether a paper sheet has a motion thread that is a thread part in which a pattern varies with a viewing angle. The paper sheet recognition apparatus includes multiple light sources that irradiate the paper sheet with lights from corresponding multiple directions, a line sensor that receives reflected light reflected from the paper sheet that is irradiated with the lights from the multiple directions by the light sources, an image processing unit that creates, based on an output signal that is outputted by the line sensor, multiple paper sheet images captured by using the light irradiated by the light source from each direction, and a recognition unit that judges whether the motion thread is present by comparing each image of the thread part included in each of the paper sheet images created by the image processing unit.

    摘要翻译: 纸张识别装置识别纸张是否具有作为图案随视角变化的螺纹部分的运动线。 纸张识别装置包括从相应的多个方向照射纸张的多个光源,从光源接收从多个方向照射光的纸张反射的反射光的线传感器,图像 处理单元,其基于由所述线传感器输出的输出信号,通过使用从所述光源照射的光从各个方向拍摄的多张纸张图像,以及识别单元,其通过比较来判断所述运动线是否存在 每个由图像处理单元创建的纸张图像中包括的线形部分的每个图像。

    Paper-sheet recognition apparatus
    2.
    发明授权
    Paper-sheet recognition apparatus 有权
    纸张识别装置

    公开(公告)号:US08345947B2

    公开(公告)日:2013-01-01

    申请号:US12842319

    申请日:2010-07-23

    IPC分类号: G06K9/00

    CPC分类号: G07D7/04 G07D7/12

    摘要: A paper-sheet recognition apparatus recognizes a paper sheet, which is being transported, by using an optical line sensor and a magnetic line sensor. The paper-sheet recognition apparatus includes a memory unit that stores therein magnetic templates defined in advance for respective types and respective transport directions of paper sheets, wherein the magnetic templates are defined at optical resolution representing resolution of the optical line sensor; a selecting unit that selects a magnetic template based on a type and a transport direction of the paper sheet, the type and the transport direction being obtained by analyzing optical data acquired by the optical line sensor; and a comparing unit that divides magnetic data acquired by the magnetic line sensor into pieces of data each corresponding to the optical resolution, and compares the magnetic template selected by the selecting unit with the divided magnetic data.

    摘要翻译: 纸张识别装置通过使用光线传感器和磁线传感器来识别被传送的纸张。 纸张识别装置包括存储单元,其存储预先为纸张的各种类型和各个输送方向预先定义的磁性模板,其中,磁性模板以表示光学线路传感器的分辨率的光学分辨率定义; 选择单元,其基于纸张的类型和传送方向选择磁性模板,通过分析由光学线路传感器获取的光学数据获得的类型和传送方向; 以及比较单元,其将由磁线传感器获取的磁数据分割成与光学分辨率相对应的数据,并将由选择单元选择的磁性模板与分割的磁数据进行比较。

    Image reading apparatus having multiple wavelength light sources and control method for the same
    3.
    发明授权
    Image reading apparatus having multiple wavelength light sources and control method for the same 失效
    具有多个波长光源的图像读取装置及其控制方法

    公开(公告)号:US06501087B1

    公开(公告)日:2002-12-31

    申请号:US09549834

    申请日:2000-04-14

    IPC分类号: G06K1100

    CPC分类号: G07D7/121

    摘要: To keep operation of a control circuit for a line sensor reading operation always the same regardless of variations and differences between readers, simplify the control circuit, and avoid complicated processes such as setting various software process parameters for canceling differences between the readers. A line shaped, two-wavelength transmitting LED array and a line shaped light emitting/photodetecting part comprising a photodetector array and a two-wavelength reflecting LED array are disposed in opposition each other such that a read medium passes between the two-wavelength LED array for transmitting light and the light emitting/photodetecting part, and the two-wavelength LED array for tranmitting light and two-wavelength LED array for reflecting light emit light of different wavelengths. An storage time control circuit is disposed in a signal processing circuit of the photodetector array; and a control means is provided for controlling light emission with the two-wavelength transmitting LED array and two-wavelength reflecting LED array, controlling reading with the photodetectors, and controlling the storage time control circuit. Variations in wavelength detection sensitivity and light quantity with different scanned media are adjusted by means of the storage time of the storage time control circuit.

    摘要翻译: 为了保持线路传感器读取操作的控制电路的操作始终相同,无论读取器之间的差异如何,简化控制电路,并避免复杂的过程,例如设置各种软件过程参数以消除读取器之间的差异。 包括光电检测器阵列和双波长反射LED阵列的线形双波长透射LED阵列和线形发光/光电检测部分彼此相对设置,使得读介质在双波长LED阵列之间通过 用于发射光和发光/光电检测部分,用于发光的双波长LED阵列和用于反射光的双波长LED阵列发射不同波长的光。 存储时间控制电路设置在光电检测器阵列的信号处理电路中; 并且提供控制装置,用于控制双波长透射LED阵列和双波长反射LED阵列的发光,控制用光电检测器的读取,并控制存储时间控制电路。 通过存储时间控制电路的存储时间来调整不同扫描介质的波长检测灵敏度和光量的变化。