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    • 11. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US08237757B2
    • 2012-08-07
    • US12824852
    • 2010-06-28
    • Shinji AokiMasashi TakahashiMasashi HirokiTakeshi Watanabe
    • Shinji AokiMasashi TakahashiMasashi HirokiTakeshi Watanabe
    • B41J2/395G01D15/06G03G15/01
    • G03G21/0064G03G15/0115G03G15/0173G03G15/0189G03G15/0194G03G15/0415G03G2215/0119G03G2215/0164G03G2215/0602
    • There is provided a photoreceptor cleanerless image forming apparatus capable of decreasing color mixture or an exposure error due to reverse transfer toner an untransferred toner. An image forming apparatus 100 according to the present invention comprises four image forming units 100a, 100b, 100c, and 100d configured to be photoreceptor cleanerless in a 4-drum tandem manner. Each image forming unit includes a photoreceptor 103a, 103b, 103c, or 103d, a charger 105a, 105b, 105c, or 105d, an exposure apparatus 106a, 106b, 106c, or 106d, and a developing apparatus 109a, 109b, 109c, or 109d. When exposure intensities Iy, Ic, Im, and Ik are assumed for exposure sources of the exposure apparatuses in the image forming units which form yellow, magenta, cyan, and black images, respectively, the exposure intensities are configured to satisfy conditions of Ik≧Ic≧Im≧Iy and Ik>Iy. This decreases an exposure error (image hysteresis) in an image formed on paper.
    • 提供了一种能够降低颜色混合的感光体无清洁器图像形成装置或由于反转印墨粉未转印的调色剂引起的曝光误差。 根据本发明的图像形成装置100包括四个成像单元100a,100b,100c和100d,其被配置为以4鼓串联的方式成为无感光体清洁器。 每个图像形成单元包括感光体103a,103b,103c或103d,充电器105a,105b,105c或105d,曝光装置106a,106b,106c或106d以及显影装置109a,109b,109c或 109d。 对于分别形成黄色,品红色,青色和黑色图像的图像形成单元中的曝光装置的曝光源,假设曝光强度Iy,Ic,Im和Ik,曝光强度被配置成满足条件Ik≥ Ic≧Im≧Iy和Ik> Iy。 这降低了在纸上形成的图像中的曝光误差(图像迟滞)。
    • 12. 发明授权
    • Control device of internal combustion engine
    • 内燃机控制装置
    • US08190349B2
    • 2012-05-29
    • US12805791
    • 2010-08-19
    • Masashi Takahashi
    • Masashi Takahashi
    • F02D41/14F02D28/00F01N3/00
    • F02D41/365F01N2900/0411F02D41/1454F02D2200/10F02D2200/501F02P5/1514Y02T10/22Y02T10/46
    • A control device of an internal combustion engine includes: an air-fuel ratio modulator, performing modulation of an air-fuel ratio of an exhaust which flows in an exhaust purifier provided in an exhaust system of the internal combustion engine; a fluctuation detector, detecting a fluctuation of the internal combustion engine due to the modulation of the air-fuel ratio performed by the air-fuel ratio modulator; a feed-back controller, performing feed-back control of a driving control parameter of the internal combustion engine so as to suppress the fluctuation detected by the fluctuation detector; a determiner, determining whether or not a driving state of the internal combustion engine is in an operating area of the feed-back controller; and an operator, setting a fluctuation suppression target value, which is a target value for suppressing the fluctuation of the internal combustion engine, to operate the feed-back controller based on the fluctuation suppression target value, when the determiner determines that the driving state of the internal combustion engine is not in the operating area of the feed-back controller, while the air-fuel modulator performs the modulation of the air-fuel ratio.
    • 内燃机的控制装置包括:空燃比调制器,对设置在内燃机的排气系统中的排气净化器中流动的排气的空燃比进行调制; 波动检测器,检测由空燃比调制器执行的空燃比的调制引起的内燃机的波动; 反馈控制器,对所述内燃机的驱动控制参数进行反馈控制,以抑制由所述波动检测器检测出的波动; 确定器,确定所述内燃机的驱动状态是否在所述反馈控制器的操作区域中; 以及操作者,当确定器确定驱动状态时,设定作为抑制内燃机的波动的目标值的波动抑制目标值,以基于波动抑制目标值来操作反馈控制器 内燃机不在反馈控制器的操作区域中,而空气 - 燃料调制器执行空燃比的调制。
    • 13. 发明申请
    • IMAGE DECODING METHOD AND IMAGE CODING METHOD
    • 图像解码方法和图像编码方法
    • US20110182361A1
    • 2011-07-28
    • US13120917
    • 2009-06-29
    • Katsuyuki NakamuraToru YokoyamaMasashi Takahashi
    • Katsuyuki NakamuraToru YokoyamaMasashi Takahashi
    • H04N7/32H04N7/28
    • H03M7/42H04N19/13H04N19/139H04N19/159H04N19/176H04N19/46H04N19/61H04N19/70
    • The present invention is directed to improve compression efficiency by variable-length coding in accordance with characteristics of image data to be processed. An apparatus for compressing quantized data by variable-length coding includes: a statistical information storing memory (212) for storing statistical information (MBTyp and CBPL) of coded image data; a variable-length code table generating unit (213) for generating a variable-length code table on the basis of the statistical information stored in the memory; and a variable-length coding unit (205) for performing variable-length coding on the basis of the variable-length code table. The variable-length code table generating unit generates a variable-length code table by adding occurrence probability of statistical information calculated within a predetermined range of the coded image data and initial occurrence probability selected on the basis of a coding parameter (S3005), and assigning a short code in descending order of statistical information obtained by the addition (S3006).
    • 本发明旨在通过根据要处理的图像数据的特性通过可变长度编码来提高压缩效率。 一种用于通过可变长度编码压缩量化数据的装置,包括:存储编码图像数据的统计信息(MBTyp和CBPL)的统计信息存储器(212) 可变长度码表生成单元,用于根据存储在存储器中的统计信息生成可变长度码表; 以及用于根据可变长度代码表执行可变长度编码的可变长度编码单元(205)。 可变长度码表生成单元通过将编码图像数据的预定范围内的计算出的统计信息的发生概率和基于编码参数选择的初始发生概率相加,生成可变长度码表(S3005),并分配 通过加法获得的统计信息的降序的缩写(S3006)。
    • 19. 发明申请
    • IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
    • 图像形成装置和图像形成方法
    • US20110008078A1
    • 2011-01-13
    • US12826046
    • 2010-06-29
    • Masashi TakahashiMinoru YoshidaTakeshi Watanabe
    • Masashi TakahashiMinoru YoshidaTakeshi Watanabe
    • G03G15/01
    • G03G15/162G03G15/0136G03G15/0194
    • According to one embodiment, an image forming apparatus includes a first image forming unit, a second image forming unit, and an intermediate transfer medium. The first image forming unit includes at least one image bearing member on which a first image is formed. The second image forming unit includes an image bearing member on which a second image is formed. The first image is primarily transferred onto the intermediate transfer medium. When the intermediate transfer medium is moved to a first position, the first image is secondarily transferred onto the image bearing member of the second image forming unit and tertiarily transferred onto a transfer medium from the image bearing member. When the intermediate transfer medium is moved to a second position, the second image is transferred onto the transfer medium from the image bearing member of the second image forming unit.
    • 根据一个实施例,图像形成装置包括第一图像形成单元,第二图像形成单元和中间转印介质。 第一图像形成单元包括形成有第一图像的至少一个图像承载部件。 第二图像形成单元包括形成有第二图像的图像承载部件。 第一图像主要转印到中间转印介质上。 当中间转印介质移动到第一位置时,将第一图像二次转印到第二图像形成单元的图像承载部件上,并从图像承载部件三次转印到转印介质上。 当中间转印介质移动到第二位置时,第二图像从第二图像形成单元的图像承载部件转印到转印介质上。