公开(公告)号：US07949807B2

公开(公告)日：2011-05-24

申请号：US11884314

申请日：2005-03-16

申请人： Tsuneo Sato ,  Keiki Yamada

发明人： Tsuneo Sato ,  Keiki Yamada

IPC分类号： G06F13/12

CPC分类号： G06F7/00 ,  G06F2207/7242 ,  H04L9/003 ,  H04L9/0625

摘要： It is aimed, for example, to reduce an amount of power consumption of an operation concerning data encryption or decryption and to make it difficult to perform a power analysis. In the case an exclusive OR operation between 32-bit input data and a 32-bit key is performed to obtain output data of 32 bits, the input data is kept in an input shift register 105 of 32 bits and the key is kept in a key shift register 106 of 32 bits. Then, 1 bit of the input data and 1 bit of the key are input into a serial operator 107, and an exclusive OR of 1 bit is obtained and shifted to the left end of the input shift register 105. The key shift register 106 performs a cyclic right shift. By performing the above thirty-two times, the operation of 32 bits is completed and the last result is kept in the input shift register 105.

摘要翻译： 例如，旨在减少与数据加密或解密有关的操作的功耗量，并且难以执行功率分析。 在执行32位输入数据和32位密钥之间的异或运算以获得32位的输出数据的情况下，将输入数据保存在32位的输入移位寄存器105中，并将该密钥保存在 32位的键移位寄存器106。 然后，输入数据的1位和键的1位被输入到串行操作器107中，并且获得1位的异或，并移位到输入移位寄存器105的左端。键移位寄存器106执行 循环右移。 通过执行上述三十二次，32位的操作完成，最后的结果保存在输入移位寄存器105中。

公开(公告)号：US07587590B2

公开(公告)日：2009-09-08

申请号：US10451826

申请日：2002-10-24

申请人： Keiki Yamada ,  Tsuneo Sato

发明人： Keiki Yamada ,  Tsuneo Sato

IPC分类号： H04L9/36

CPC分类号： H04L9/003

摘要： This invention relates to an encryption communication apparatus using encryption processing. It is an object of this invention to obtain the encryption communication apparatus with excellent tamper-resistance while ensuring sufficient securities. A communicating unit 1 sends and receives communication data including a length field and a data field. A length comparing unit 6 compares a value of the length field and a minimum length value stored in the apparatus in advance. When it is judged that the value of the length field is less than the minimum length value, a controlling unit 7 controls an encryption processing unit 5 not to perform encryption processing or decryption processing of the data in the data field.

摘要翻译： 本发明涉及使用加密处理的加密通信装置。 本发明的一个目的是获得具有优异的防篡改性的加密通信设备，同时确保足够的证券。 通信单元1发送和接收包括长度字段和数据字段的通信数据。 长度比较单元6预先比较存储在装置中的长度字段的值和最小长度值。 当判断长度字段的值小于最小长度值时，控制单元7控制加密处理单元5不对数据字段中的数据执行加密处理或解密处理。

公开(公告)号：US20090116893A1

公开(公告)日：2009-05-07

申请号：US11920743

申请日：2006-07-03

申请人： Ichiro Furuki ,  Takaaki Kase ,  Keiki Yamada ,  Hisashi Yamada ,  Makoto Sakuwa ,  Yoshihito Matsuura

发明人： Ichiro Furuki ,  Takaaki Kase ,  Keiki Yamada ,  Hisashi Yamada ,  Makoto Sakuwa ,  Yoshihito Matsuura

IPC分类号： B41J11/00

CPC分类号： B41J11/703 ,  B41J3/54 ,  B41J11/0015 ,  B41J11/42 ,  B41J11/70 ,  B41J13/0009 ,  B41J15/04 ,  B41J2202/33 ,  B41M7/0027 ,  B65H20/02 ,  B65H20/04

摘要： A first cutter 130 (cutting unit) is provided between a color recording unit 120 (the first printing unit) and an overcoat recording unit 140 (the second printing unit). A portion whereon color printing is completed by the color recording unit 120 of a recording paper 200 (printing medium) is cut off by the first cutter 130 and detached. An overcoat recording unit 140 performs an overcoat process on the detached recording paper (printing medium strip). In parallel with this, the color recording unit 120 performs next color printing on the recording paper 200. This makes it possible to reduce a printing time in a printing device including a plurality of printing processes without deteriorating printing quality. Further, an useless paper feeding is eliminated by optimally arranging the color recording unit 120, the first cutter 130, the overcoat recording unit 140, and the second cutter 160, etc. in accordance with a size of a printing area.

摘要翻译： 第一切割器130（切割单元）设置在彩色记录单元120（第一印刷单元）和外涂层记录单元140（第二印刷单元）之间。 由记录纸200（打印介质）的彩色记录单元120完成彩色打印的部分被第一切割器130切断并分离。 外涂层记录单元140对分离的记录纸（打印介质条）执行外涂层处理。 与此并行地，彩色记录单元120在记录纸张200上执行下一次彩色打印。这使得可以在不降低打印质量的情况下减少包括多个打印处理的打印装置中的打印时间。 此外，通过根据打印区域的尺寸优化布置彩色记录单元120，第一切割器130，外涂层记录单元140和第二切割器160等来消除无用的进纸。

公开(公告)号：US06930699B2

公开(公告)日：2005-08-16

申请号：US09841049

申请日：2001-04-25

申请人： Keiki Yamada ,  Ichiro Furuki ,  Hiroshi Ito

发明人： Keiki Yamada ,  Ichiro Furuki ,  Hiroshi Ito

IPC分类号： B41J2/44 ,  B41J2/45 ,  B41J2/455 ,  B41J2/52 ,  H04N1/40 ,  H04N1/50 ,  B41J2/47

CPC分类号： H04N1/50 ,  B41J2/45 ,  B41J2/52 ,  H04N1/40031

摘要： An optical printing device for exposing a photosensitive recording medium to form a grayscale image includes a print head having n rows of recording elements capable of exposure of different colors and aligned in a direction of advancement of the photosensitive recording medium, where n is an integer more than 1, the n rows of recording elements being spaced substantially a multiple of L×(m+k/n) apart in the direction of advancement of the photosensitive recording medium, where L denotes a distance between the centers of recording pixels according to the desired resolution of a recorded image, m is an integer of 1 or more, and k is an integer of 1 or more and less than n. The optical printing device also includes a head driver for driving the print head. Light from the print head is selectively exposed on the photosensitive recording medium to form the grayscale image.

摘要翻译： 用于曝光光敏记录介质以形成灰度图像的光学打印装置包括具有能够曝光不同颜色并且在光敏记录介质的前进方向上排列的n行记录元件的打印头，其中n是更多的整数 1行的记录元件在感光记录介质的前进方向上分开大致为Lx（m + k / n）的倍数，其中L表示根据期望的记录像素的中心之间的距离 记录图像的分辨率，m为1以上的整数，k为1以上且小于n的整数。 光学打印装置还包括用于驱动打印头的头驱动器。 来自打印头的光选择性地暴露在感光记录介质上以形成灰度图像。

公开(公告)号：US20050168561A1

公开(公告)日：2005-08-04

申请号：US11037248

申请日：2005-01-19

申请人： Ichiro Furuki ,  Keiki Yamada

发明人： Ichiro Furuki ,  Keiki Yamada

IPC分类号： B41J2/36 ,  B41J2/14 ,  B41J2/375 ,  B41J2/325

CPC分类号： B41J2/375 ,  B41J2/3555 ,  B41J2/362

摘要： The present invention aims to provide an image enhancement device of a thermal printer which can obtain a corrected image with high quality even if quantity of thermal storage to obtain recording density necessary for target gradation data is excessive or insufficient due to thermal history. The image enhancement device of the thermal printer according to the present invention includes: a thermal storage quantity computing unit for computing quantity of thermal storage which affects a heater element of a thermal head using past record; a thermal storage quantity memory unit for storing the quantity of thermal storage computed; a threshold value table having a threshold value which is determined based on input data; a thermal storage quantity discriminating unit for comparing the quantity of thermal storage with the threshold value of the threshold value table; and a correction quantity computing unit for computing correction quantity from the quantity of thermal storage according to comparison result, for obtaining subtraction correction data by subtracting the correction quantity from the input data when the quantity of thermal storage is greater than the threshold value, and for obtaining addition correction data by adding the correction quantity to the input data when the quantity of thermal storage is equal to or less than the threshold value.

摘要翻译： 本发明的目的在于提供一种热敏打印机的图像增强装置，即使获得目标灰度数据所需的记录密度的热存储量由于热历史而过大或不足，也能够以高质量获得校正图像。 根据本发明的热敏打印机的图像增强装置包括：热存储量计算单元，用于计算使用过去记录影响热敏头的加热器元件的热存储量; 蓄热量存储单元，用于存储所计算的热存储量; 具有基于输入数据确定的阈值的阈值表; 用于将热存储量与阈值表的阈值进行比较的热存储量判别单元; 以及校正量计算单元，用于根据比较结果从热存储量计算校正量，用于通过当热存储量大于阈值时从输入数据中减去校正量来获得减法校正数据，并且对于 当热存储量等于或小于阈值时，通过将校正量加到输入数据上来获得加法校正数据。

公开(公告)号：US06690348B2

公开(公告)日：2004-02-10

申请号：US10002122

申请日：2001-12-05

申请人： Tsuneo Sato ,  Ichiro Furuki ,  Masatoshi Takahashi ,  Keiki Yamada

发明人： Tsuneo Sato ,  Ichiro Furuki ,  Masatoshi Takahashi ,  Keiki Yamada

IPC分类号： G09G336

CPC分类号： G02F1/133621 ,  G02F1/133615 ,  G02F2001/133618 ,  G02F2001/133622 ,  G02F2001/133626 ,  G09G3/3406 ,  G09G3/36 ,  G09G2300/02 ,  G09G2310/0235 ,  G09G2320/0626 ,  G09G2320/0633 ,  G09G2360/144 ,  G09G2360/145

摘要： A transmissive color liquid crystal display including a first liquid crystal section, a light-guiding element, a second liquid crystal section, and first and second liquid crystal drivers. The first liquid crystal section presents color images. The light-guiding element is situated behind the first liquid crystal section for orienting rays toward the first liquid crystal display section. The second liquid crystal section includes a plurality of zones capable of transmitting wavelength bands of external rays, respectively. The zones are selectively activated for introducing colored external rays through respective zones to the light-guiding element. The first liquid crystal driver controls the first liquid crystal section. While color-component data extracted from full color image data is input into the first liquid crystal driver in a time-division manner, the first liquid crystal driver activates and deactivates pixels on the first liquid crystal section for presenting images on the first liquid crystal display on the basis of the color-component data in time division manner. The second liquid crystal driver selectively activates the zones in the second liquid crystal section in time division manner for introducing colored external rays of which wavelength bands correspond to the color-component data through the zone to the light-guiding element for irradiating the images on the first liquid crystal section with the colored external rays in time division manner.

摘要翻译： 一种透射彩色液晶显示器，包括第一液晶部分，导光元件，第二液晶部分以及第一和第二液晶驱动器。 第一液晶部分呈现彩色图像。 导光元件位于第一液晶部分的后面，用于朝向第一液晶显示部分定向光线。 第二液晶部分分别包括能够传输外部光线的波长带的多个区域。 选择性地激活这些区域，以将彩色的外部光线通过相应的区域引导到导光元件。 第一液晶驱动器控制第一液晶部分。 当从全彩色图像数据提取的色彩分量数据以时分方式输入到第一液晶驱动器时，第一液晶驱动器激活和去激活第一液晶部分上的像素，以在第一液晶显示器上呈现图像 基于时分方式的颜色分量数据。 第二液晶驱动器以时分方式选择性地激活第二液晶部分中的区域，用于将波段对应于彩色分量数据的彩色外部光线通过该区域引导到导光元件，用于照射第二液晶部分上的图像 第一个具有彩色外部光线的液晶部分以时分方式。

公开(公告)号：US06414705B1

公开(公告)日：2002-07-02

申请号：US09545006

申请日：2000-04-06

申请人： Keiki Yamada ,  Ichiro Furuki

发明人： Keiki Yamada ,  Ichiro Furuki

IPC分类号： B41J2435

CPC分类号： B41J2/45 ,  B41J2/465 ,  B41J2/525 ,  H04N1/484 ,  H04N1/50 ,  H04N1/54

摘要： In an optical printing apparatus for selectively exposing light with respect to a photosensitive recording medium to thereby form a gradation image thereon, there are provided; image data input device for entering more than 4 colors of spectral image data; storage device for storing thereinto the entered spectral image data in the unit of either 1 screen or 1 line; an optical head for outputting more than 4 sorts of light having different wavelengths from each other; and head driving device for converting the stored spectral image data into predetermined exposure time periods, and turning ON the more than 4 sorts of light so as to ON/OFF-drive the optical print head. As a result, this optical printing apparatus is capable of performing a high image quality recording operation. More specifically, a realistic image having a material feeling is formed.

摘要翻译： 在用于相对于感光记录介质选择性地曝光光从而在其上形成灰度图像的光学打印设备中， 用于输入多于4种颜色的光谱图像数据的图像数据输入装置; 存储装置，用于以1屏或1行为单位存储输入的光谱图像数据; 用于输出具有彼此不同波长的多种4种光的光学头; 以及头驱动装置，用于将存储的光谱图像数据转换成预定的曝光时间段，并打开多于4种的光，以便打开/关闭驱动光学打印头。 结果，该光学打印装置能够执行高图像质量记录操作。 更具体地，形成具有材料感觉的真实图像。

公开(公告)号：US5658845A

公开(公告)日：1997-08-19

申请号：US462199

申请日：1995-06-05

申请人： Niro Watanabe ,  Yuji Nakatsu ,  Keiki Yamada ,  Masaru Ohnishi

发明人： Niro Watanabe ,  Yuji Nakatsu ,  Keiki Yamada ,  Masaru Ohnishi

IPC分类号： B41M5/337 ,  B41M5/28 ,  B41M5/30 ,  B41M5/323 ,  B41M5/333 ,  B41M5/36 ,  B41M5/26

CPC分类号： B41M5/3335 ,  B41M5/287 ,  B41M5/323 ,  B41M5/3375

摘要： A reversible thermal recording medium having a core material capable of being change in state by heat and a recording layer including capsules containing this core material. A repeatability corresponding to the limit of possible repeated recording/erasing effected by a physical or chemical change in the material constituting the recording can be obtained. A deterioration in image quality caused by transfer of a part of the recording layer to the heating unit can be prevented and repeat characteristics can be improved, thereby limiting the running cost.

摘要翻译： 具有能够通过加热状态变化的芯材的可逆热记录介质和包含该芯材的胶囊的记录层。 可以获得对应于由构成记录的材料的物理或化学变化所影响的可能的重复记录/擦除的限制的重复性。 可以防止由于将记录层的一部分转印到加热单元而导致的图像质量的劣化，并且可以提高重复特性，从而限制运行成本。

公开(公告)号：US5534906A

公开(公告)日：1996-07-09

申请号：US929301

申请日：1992-08-13

申请人： Keiki Yamada ,  Masaru Ohnishi ,  Yoshiaki Odai ,  Ryoji Arima

发明人： Keiki Yamada ,  Masaru Ohnishi ,  Yoshiaki Odai ,  Ryoji Arima

IPC分类号： B41J2/325 ,  B41J17/06 ,  H04N1/23

CPC分类号： B41J2/325

摘要： In a thermal recording apparatus, a thermal head heats an ink sheet to transfer ink to a recording medium such as paper. Even when recording on a low-smoothness plain paper, an image free of voids can be obtained. The apparatus is equipped with a mechanism for generating an electric field between the ink sheet and the recording medium. Due to this electric field, the ink particles liquified by the thermal head fly and are transferred to the recording medium.

摘要翻译： 在热敏记录装置中，热敏头对油墨片进行加热以将油墨转印到诸如纸的记录介质上。 即使在低光滑普通纸上记录，也可以获得无空隙的图像。 该装置配备有用于在墨纸和记录介质之间产生电场的机构。 由于该电场，由热敏头液化的墨水颗粒飞散并被转移到记录介质。

公开(公告)号：US20080258864A1

公开(公告)日：2008-10-23

申请号：US11663354

申请日：2004-10-28

申请人： Takashi Hattori ,  Keiki Yamada ,  Toshihisa Kamemaru ,  Koji Nishikawa

发明人： Takashi Hattori ,  Keiki Yamada ,  Toshihisa Kamemaru ,  Koji Nishikawa

IPC分类号： G06F7/04

CPC分类号： H04B5/0062 ,  H04W12/02 ,  G06K7/0008 ,  G06K7/10029 ,  H04B5/02 ,  H04L9/3215 ,  H04L9/3271 ,  H04L2209/805 ,  H04W12/06

摘要： A communication apparatus for mutual communication, when acting as an authenticator communication apparatus performing authentication, includes a transmitting section that transmits to an authenticatee communication apparatus subject to authentication challenge data to authenticate the authenticatee communication apparatus in a time slot, which is a segmented period of time in which the communication apparatus to communicate with a specific communication apparatus; and a receiving section that receives from the authenticatee communication apparatus first response data for responding to the challenge data in the same time slot as the one in which the transmitting section transmits the challenge data. An objective is to carry out authentication of a tag by a Reader/Writer (R/W) and authentication of the R/W by the tag at the same time as an anti-collision process, and to further achieve confidentiality of unique ID information that is transmitted.

摘要翻译： 一种用于相互通信的通信装置，当用作进行认证的认证器通信装置时，包括发送部件，该发送部件在经过验证质询数据的认证对象通信装置的发送时间段内进行认证， 通信装置与特定通信装置通信的时间; 以及接收部，其从所述认证通信装置接收与所述发送部发送所述质询数据相同的时隙中的所述质询数据的第一响应数据。 目的是通过读/写器（R / W）对标签进行认证，并通过标签与抗冲突处理同时进行R / W认证，并进一步实现唯一ID信息的机密性 被传输。