公开(公告)号：US06217141B1

公开(公告)日：2001-04-17

申请号：US08868832

申请日：1997-06-09

申请人： Shigeyoshi Nakamura ,  Hiroshi Nou ,  Satoshi Semba ,  Tomohisa Mikami

发明人： Shigeyoshi Nakamura ,  Hiroshi Nou ,  Satoshi Semba ,  Tomohisa Mikami

IPC分类号： B41J2938

CPC分类号： B41J2/04541 ,  B41J2/04563 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/2128

摘要： Disclosed is a method of driving a piezo-electric type ink jet head for jetting inks out of a nozzle by making use of a distortion of a piezo-electric element. The driving method includes a first step of driving the piezo-electric element so that a meniscus of inks is receded from an initial position of the nozzle to a first position within the nozzle, a second step of driving the piezo-electric element so that the meniscus quickly advances from the first position to a second position within the nozzle, and a third step of driving the piezo-electric element so that the meniscus slowly advances from the second position to the initial position. A particle quantity of ink particles is changed by changing a movement quantity from the first position to the second position in the second step.

摘要翻译： 公开了一种驱动压电型喷墨头的方法，该喷墨头通过利用压电元件的变形从喷嘴喷出墨水。 驱动方法包括驱动压电元件的第一步骤，使得墨水的弯液面从喷嘴的初始位置退回到喷嘴内的第一位置;驱动压电元件的第二步骤， 弯液面从喷嘴内的第一位置快速前进到第二位置，并且驱动压电元件使得弯液面从第二位置缓慢前进到初始位置的第三步骤。 通过在第二步骤中通过改变从第一位置到第二位置的移动量来改变墨水颗粒的颗粒量。

公开(公告)号：US07016077B2

公开(公告)日：2006-03-21

申请号：US09821013

申请日：2001-03-30

申请人： Satoshi Semba ,  Masayoshi Shimizu ,  Shoji Suzuki

发明人： Satoshi Semba ,  Masayoshi Shimizu ,  Shoji Suzuki

IPC分类号： G06F15/00 ,  G06K1/00

CPC分类号： H04N1/60 ,  H04N1/622

摘要： A color image processing apparatus and method capable of changing/converting an inadequate-exposure image or an over-exposure image into an apparently natural image or a pleasing-lightness image. The apparatus is equipped with an object color designating section for designating an object color in an input color image, an optimum color setting section for setting an optimum color corresponding the object color, a lightness conversion factor obtaining section for obtaining a lightness conversion factor based on the object color and the optimum color, and a lightness converting section for converting the lightness of the color image using the lightness conversion factor to create a lightness-changed color image. This apparatus is useful in correcting lightness over a color image input from a digital camera, an image scanner or the like.

摘要翻译： 一种彩色图像处理装置和方法，其能够将不充分曝光的图像或过度曝光的图像改变/转换为明显自然的图像或悦目的图像。 该装置配备有用于指定输入彩色图像中的对象颜色的对象颜色指定部分，用于设置对应于对象颜色的最佳颜色的最佳颜色设置部分，用于获得基于对象颜色的亮度转换因子的亮度转换因子获取部分 物体颜色和最佳颜色，以及亮度转换部分，用于使用亮度转换因子转换彩色图像的亮度，以产生亮度变化的彩色图像。 该装置可用于校正从数字照相机，图像扫描仪等输入的彩色图像的亮度。

公开(公告)号：US20050185828A1

公开(公告)日：2005-08-25

申请号：US11109765

申请日：2005-04-20

申请人： Satoshi Semba ,  Yusaku Fujii ,  Yukihiro Abiko ,  Takashi Shinzaki

发明人： Satoshi Semba ,  Yusaku Fujii ,  Yukihiro Abiko ,  Takashi Shinzaki

IPC分类号： G06K9/00 ,  G06T7/00 ,  G07C9/00

CPC分类号： G06K9/00006 ,  G06K9/00087 ,  G07C9/00158

摘要： In a method for fingerprint identification, fingerprint images of parts of one finger of a person to be registered are registered as registered fingerprint images, and a relative position is calculated. A fingerprint image of a person to be identified is acquired as a read fingerprint image. Based on the relative position, a registered fingerprint image from among the registered fingerprint images is specified, and a matching degree between the registered fingerprint image specified and the read fingerprint image is calculated. The specifying and the calculating are executed until the matching degree is greater than a predetermined value.

摘要翻译： 在用于指纹识别的方法中，将要登记的人的一个手指的部分的指纹图像登记为登记的指纹图像，并且计算相对位置。 获取要识别的人的指纹图像作为读指纹图像。 根据相对位置，指定从登记的指纹图像中登记的指纹图像，计算登记的指纹图像与读取指纹图像的匹配度。 执行指定和计算直到匹配度大于预定值。

公开(公告)号：US06292195B1

公开(公告)日：2001-09-18

申请号：US09045707

申请日：1998-03-23

申请人： Masayoshi Shimizu ,  Shoji Suzuki ,  Satoshi Semba

发明人： Masayoshi Shimizu ,  Shoji Suzuki ,  Satoshi Semba

IPC分类号： G06T1700

CPC分类号： H04N1/6058

摘要： A color signal selection apparatus comprising a color space split unit for splitting a color space to which an inputted first color signal belongs, according to the first color signal, and a color signal selection unit for selecting second color signals from within color subspaces which have been formed by the splitting of the color space split unit, the second color signals being distributed on the color subspaces.

摘要翻译： 一种彩色信号选择装置，包括用于根据第一颜色信号分割输入的第一颜色信号所属的颜色空间的颜色空间分割单元和用于从已经在颜色子空间内的颜色子空间中选择第二颜色信号的颜色信号选择单元 通过分割颜色空间分割单元形成，第二颜色信号分布在颜色子空间上。

公开(公告)号：US06611356B1

公开(公告)日：2003-08-26

申请号：US09336766

申请日：1999-06-21

申请人： Masayoshi Shimizu ,  Masahiro Mori ,  Shoji Suzuki ,  Satoshi Semba

发明人： Masayoshi Shimizu ,  Masahiro Mori ,  Shoji Suzuki ,  Satoshi Semba

IPC分类号： G06F1500

CPC分类号： H04N1/6058

摘要： When an L*a*b* value of a certain color is outside a target color gamut to be converted, it is judged whether the L*a*b* value is located within the range of the color gamut set under a predetermined condition. This set range is a range in which the accuracy is degraded if colors are converted using only a first method, for example, a range in the neighborhood of the color gamut. If a color to be converted is located within the range, colors are converted using a second method. If the L*a*b* value of the color to be converted is outside of the set range, it is converted using the first method until the conversion result is contained within the range. Then, the occurrence of both a problem which the first conversion method has for colors in the neighborhood of the color gamut when colors are converted and a problem which the second method has in the conversion of a color far from the color gamut can be suppressed.

摘要翻译： 当特定颜色的L * a * b *值在要转换的目标色域之外时，判断L * a * b *值是否位于在预定条件下设定的色域的范围内。 该设定范围是如果仅使用第一种方法（例如，色域附近的范围）转换颜色，则精度降低的范围。 如果要转换的颜色位于该范围内，则使用第二种方法转换颜色。 如果要转换的颜色的L * a * b *值超出设定范围，则使用第一种方法转换，直到转换结果包含在该范围内。 然后，可以抑制当颜色被转换时第一转换方法对于色域附近的颜色的问题以及第二种方法在颜色远离色域的转换中出现的问题。

公开(公告)号：US06373595B1

公开(公告)日：2002-04-16

申请号：US09326624

申请日：1999-06-07

申请人： Satoshi Semba ,  Masayoshi Shimizu ,  Shoji Suzuki ,  Kimitaka Murashita

发明人： Satoshi Semba ,  Masayoshi Shimizu ,  Shoji Suzuki ,  Kimitaka Murashita

IPC分类号： G06F1500

CPC分类号： H04N1/6058 ,  G06T11/001

摘要： In a virtual gamut-obtaining step, lightness, saturation, and/or hue angle of the second gamut is converted and an expanded virtual gamut including at least all of the lightness values of the first gamut is obtained. In a color data changing step, for color data which is not included in the virtual gamut in color data of the first gamut, lightness, saturation, and hue angle are changed, thereby obtaining third color data included in the virtual gamut. In a color data forming step, a conversion opposite to the conversion performed to the second gamut in the virtual gamut obtaining step is executed to the third color data, thereby forming second color data.

摘要翻译： 在虚拟色域获取步骤中，转换第二色域的亮度，饱和度和/或色相角，并且获得包括第一色域的至少全部亮度值的扩展虚拟色域。 在颜色数据变化步骤中，对于不包括在第一色域的颜色数据中的虚拟色域中的颜色数据，亮度，饱和度和色调角度被改变，从而获得包括在虚拟色域中的第三颜色数据。 在彩色数据形成步骤中，对第三颜色数据执行与虚拟色域获取步骤中的第二色域执行的转换相反的转换，从而形成第二颜色数据。

公开(公告)号：US09355298B2

公开(公告)日：2016-05-31

申请号：US13558539

申请日：2012-07-26

申请人： Satoshi Semba

发明人： Satoshi Semba

IPC分类号： G06K9/00 ,  G06F21/32 ,  G07C9/00

CPC分类号： G06K9/00087 ,  G06F21/32 ,  G06K9/00 ,  G06K9/00006 ,  G06K9/00107 ,  G06K9/00885 ,  G06K9/00926 ,  G06K9/6292 ,  G06K9/6293 ,  G07C9/00071

摘要： A fingerprint authentication apparatus stores fingerprint data of plural fingers. The fingerprint authentication apparatus stores a history of a result of an authentication process executed using the fingerprint data. The fingerprint authentication apparatus determines the number of accepted fingers, which is the number of fingers from which the fingerprint data is accepted from a user during the authentication process, and a false acceptance rate based upon the history. The fingerprint authentication apparatus accepts the fingerprint data from the fingers in the determined number of accepted fingers. The fingerprint authentication apparatus collates whether each of the accepted fingerprint data coincides or not using the determined false acceptance rate. The fingerprint authentication apparatus authenticates a user based upon a collation result.

摘要翻译： 指纹认证装置存储多个手指的指纹数据。 指纹认证装置存储使用指纹数据执行的认证处理的结果的历史。 指纹认证装置确定在认证过程期间从用户接收到指纹数据的手指的数量的接受手指的数量和基于历史的错误接受率。 指纹认证装置以确定数量的接受的手指从手指接收指纹数据。 指纹认证装置使用所确定的错误接受率来核对每个接受的指纹数据是否一致。 指纹认证装置基于核对结果来认证用户。

公开(公告)号：US20060078177A1

公开(公告)日：2006-04-13

申请号：US11084168

申请日：2005-03-21

申请人： Koichiro Niinuma ,  Satoshi Semba ,  Takashi Shinzaki

发明人： Koichiro Niinuma ,  Satoshi Semba ,  Takashi Shinzaki

IPC分类号： G06K9/00

CPC分类号： G06K9/00087 ,  G06K9/6292 ,  G06K9/6807

摘要： For personal authentication using biometric information, to allow for unfailing authentication without increasing verification time even for an authentication object that is not supported only by a minutia matching method, the present invention provides a biometric information authentication device comprising: a first verifying section for verifying first to-be-verified data against first registration data registered preliminarily using a minutia matching method; a second verifying section for verifying second to-be-verified data against second registration data registered preliminarily using a pattern matching method; and a determining section for comparing match degree, which is obtained as a result of verification by the first verifying section, with a first threshold value and a second threshold value to allow the second verifying section to perform verification in the case where the match degree is equal to or smaller than the first threshold value and equal to or larger than the second threshold value.

公开(公告)号：US06888648B2

公开(公告)日：2005-05-03

申请号：US09802997

申请日：2001-03-12

申请人： Junichi Odagiri ,  Satoshi Semba ,  Kimitaka Murashita

发明人： Junichi Odagiri ,  Satoshi Semba ,  Kimitaka Murashita

IPC分类号： G06T1/00 ,  G06F15/00 ,  G09G5/00 ,  H04N1/46 ,  H04N1/60 ,  H04N9/64

CPC分类号： H04N1/6033

摘要： A method enabling checks on correctness of color signal values and an extracting region, which comprises a region deciding step of deciding an extracting region for each color region of a color chart image, an extracting step of calculating a representative color signal value of the color region, a displaying step of making a display unit display the extracting region along with the color chart image, and a determining step of determining correctness of the representative color signal value on the basis of the extracting region and the color chart image displayed on the display unit. This invention is applied when a color transformation table for a color input device such as a color scanner is created, when gradation maintainability of a color input device such as a color scanner is checked, and when a color transformation table for a color output device such as a color printer is created.

摘要翻译： 一种能够检查彩色信号值和提取区域的正确性的方法，该方法包括对颜色图像的每个颜色区域确定提取区域的区域确定步骤，计算颜色区域的代表性颜色信号值的提取步骤 显示步骤，使显示单元与所述色图图像一起显示所述提取区域;以及确定步骤，基于所述提取区域和显示在所述显示单元上的所述色图图像来确定所述代表颜色信号值的正确性 。 当检查诸如彩色扫描仪的彩色输入装置的灰度可维护性时，当彩色扫描器等彩色输入装置的色彩变换表被创建时，本发明被应用，并且当彩色输出装置的颜色变换表如 作为一个彩色打印机被创建。

公开(公告)号：US06323969B1

公开(公告)日：2001-11-27

申请号：US09046674

申请日：1998-03-24

申请人： Masayoshi Shimizu ,  Shoji Suzuki ,  Satoshi Semba

发明人： Masayoshi Shimizu ,  Shoji Suzuki ,  Satoshi Semba

IPC分类号： G03F308

CPC分类号： H04N1/6058

摘要： A color converting apparatus and method which accurately converts a color signal in the vicinity of the boundary of a color range of a color reproducing device. This enables dissimilar devices to exchange color images and accurately reproduce colors from the sending device to the receiving device despite different color capabilities of the two devices. This is accomplished by a first color converted result and a second color converted result are stored in a color conversion table. The first color converted result is obtained by converting an input color signal into a color signal that is color-reproducible. The second color converted result is obtained by converting an input color signal into a color signal that is not color-reproducible. In a region outside of the color reproducible range of a printer, a display, or other similar devices, when the relationship of an input color signal is accurately kept, a color signal is accurately performed.

摘要翻译： 一种颜色转换装置和方法，其精确地转换颜色再现装置的颜色范围的边界附近的颜色信号。 这使得不同的设备能够交换彩色图像并且准确地将颜色从发送设备再现到接收设备，尽管两个设备的颜色能力不同。 这是通过第一颜色转换结果并且第二颜色转换结果存储在颜色转换表中来实现的。 通过将输入颜色信号转换为可再现颜色的颜色信号来获得第一颜色转换结果。 通过将输入颜色信号转换为不是可重现颜色的颜色信号来获得第二颜色转换结果。 在打印机，显示器或其他类似装置的彩色再现范围之外的区域中，当准确地保持输入彩色信号的关系时，准确地执行彩色信号。