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21. 发明授权

US08295420B2 Image reading device 有权
标题翻译：图像读取装置
公开(公告)号：US08295420B2
公开(公告)日：2012-10-23
申请号：US12568637
申请日：2009-09-28
申请人： Atsushi Yokochi
发明人： Atsushi Yokochi
IPC分类号： H04L7/00
CPC分类号： H04B1/69 , H04B2201/70715 , H04L7/0337
摘要： An image reading device including: a photoelectric conversion device that outputs an analog signal corresponding to an image read from a document; an A-D converter that converts the analog signal into a digital signal; a spread spectrum clock generation unit configured to generate a spread spectrum clock by executing frequency-modulation on a reference clock having a constant frequency; an acquisition timing setting unit configured to set an acquiring timing of the analog signal with reference to the spread spectrum clock; and an acquisition timing correction unit configured to execute a delay correction for the acquiring timing of the analog signal set by the acquisition timing setting unit in accordance with a frequency of the spread spectrum clock defined when the analog signal is outputted. The analog signal acquired at the corrected acquiring timing corrected by the acquisition timing correction unit is converted into the digital signal.
摘要翻译：一种图像读取装置，包括：光电转换装置，其输出与从文档读取的图像相对应的模拟信号; 将模拟信号转换为数字信号的A-D转换器; 扩频时钟生成单元，被配置为通过对具有恒定频率的参考时钟执行频率调制来生成扩频时钟; 获取定时设定单元，被配置为参考所述扩频时钟设置所述模拟信号的获取定时; 以及获取定时校正单元，被配置为根据在输出模拟信号时定义的扩频时钟的频率，执行由获取定时设置单元设置的模拟信号的获取定时的延迟校正。在由采集定时校正单元校正的校正获取定时获取的模拟信号被转换成数字信号。

22. 发明授权

US08089664B2 Image reading device 有权
标题翻译：图像读取装置
公开(公告)号：US08089664B2
公开(公告)日：2012-01-03
申请号：US12010966
申请日：2008-01-31
申请人： Atsushi Yokochi
发明人： Atsushi Yokochi
IPC分类号： H04N1/04
CPC分类号： H04N1/121 , H04N1/00013 , H04N1/00031 , H04N1/00045 , H04N1/00806 , H04N1/00822 , H04N1/1017 , H04N1/12 , H04N1/123 , H04N1/1235 , H04N1/124 , H04N1/193 , H04N2201/0081 , H04N2201/02402 , H04N2201/0456 , H04N2201/0458
摘要： An image reading device according to one aspect of the invention comprises: a conveying unit configured to convey a recording medium; a first transmissive portion having a first surface that allows the recording medium to pass the first surface; a second transmissive portion having a second surface on which a recording medium is allowed to be placed; an image reading unit comprising a line sensor extending in a first direction and movable on a second path, the second path continuously extending below the first transmissive portion and the second transmissive portion; and a driver configured to move the image reading unit on the second path. A relative distance between the line sensor and the first surface changes in the second path below the first transmissive portion. The recording medium can be read at positions having the relative distances different one another.
摘要翻译：根据本发明的一个方面的图像读取装置包括：传送单元，被配置为传送记录介质; 第一透射部分，具有允许记录介质通过第一表面的第一表面; 具有允许放置记录介质的第二表面的第二透射部分; 图像读取单元，包括沿第一方向延伸并可在第二路径上移动的线传感器，所述第二路径连续地延伸到所述第一透射部分和所述第二透射部分的下面; 以及配置成将图像读取单元移动到第二路径上的驱动器。线传感器和第一表面之间的相对距离在第一透射部分下方的第二路径中改变。可以在相对距离彼此不同的位置处读取记录介质。

23. 发明申请

US20100080264A1 IMAGE READING DEVICE 有权
标题翻译：图像读取装置
公开(公告)号：US20100080264A1
公开(公告)日：2010-04-01
申请号：US12568637
申请日：2009-09-28
申请人： Atsushi Yokochi
发明人： Atsushi Yokochi
IPC分类号： H04L7/00 , H04B1/69 , G06F15/00
CPC分类号： H04B1/69 , H04B2201/70715 , H04L7/0337
摘要： An image reading device including: a photoelectric conversion device that outputs an analog signal corresponding to an image read from a document; an A-D converter that converts the analog signal into a digital signal; a spread spectrum clock generation unit configured to generate a spread spectrum clock by executing frequency-modulation on a reference clock having a constant frequency; an acquisition timing setting unit configured to set an acquiring timing of the analog signal with reference to the spread spectrum clock; and an acquisition timing correction unit configured to execute a delay correction for the acquiring timing of the analog signal set by the acquisition timing setting unit in accordance with a frequency of the spread spectrum clock defined when the analog signal is outputted. The analog signal acquired at the corrected acquiring timing corrected by the acquisition timing correction unit is converted into the digital signal.
摘要翻译：一种图像读取装置，包括：光电转换装置，其输出与从文档读取的图像相对应的模拟信号; 将模拟信号转换为数字信号的A-D转换器; 扩频时钟生成单元，被配置为通过对具有恒定频率的参考时钟执行频率调制来生成扩频时钟; 获取定时设定单元，被配置为参考所述扩频时钟设置所述模拟信号的获取定时; 以及获取定时校正单元，被配置为根据在输出模拟信号时定义的扩频时钟的频率，执行由获取定时设置单元设置的模拟信号的获取定时的延迟校正。在由采集定时校正单元校正的校正获取定时获取的模拟信号被转换成数字信号。

24. 发明授权

US07609879B2 Image processing device 有权
标题翻译：图像处理装置
公开(公告)号：US07609879B2
公开(公告)日：2009-10-27
申请号：US10937350
申请日：2004-09-10
申请人： Atsushi Yokochi
发明人： Atsushi Yokochi
IPC分类号： G06K9/00
CPC分类号： H04N1/409 , G06T5/20 , H04N1/40062
摘要： An image-processing device includes a determining unit that determines a likelihood degree of an input image being a halftone image and a plurality of spatial filters having different characteristics The spatial filters produce a plurality of component-image data sets from the input image data. A selecting unit selects one of the spatial filters based on the determined likelihood degree and then outputs component-image data produced by the selected spatial filter.
摘要翻译：图像处理装置包括确定单元，其确定作为半色调图像的输入图像的似然度和具有不同特征的多个空间滤波器。空间滤波器从输入图像数据产生多个分量图像数据集。选择单元基于所确定的似然度来选择空间滤波器中的一个，然后输出由所选择的空间滤波器产生的分量图像数据。

25. 发明授权

US07603536B2 Data processing apparatus and image reading apparatus 有权
标题翻译：数据处理装置和图像读取装置
公开(公告)号：US07603536B2
公开(公告)日：2009-10-13
申请号：US11476605
申请日：2006-06-29
申请人： Atsushi Yokochi , Noriko Sugimoto
发明人： Atsushi Yokochi , Noriko Sugimoto
IPC分类号： G06F13/00 , G06F12/00
CPC分类号： H04N1/32561 , H04N1/32593 , H04N1/32603 , H04N2201/0094
摘要： A data processing apparatus includes a data processing section that issues a plurality of data transfer requests simultaneously; an internal memory provided inside a circuit including the data processing section; an internal memory control section that performs an access control for the internal memory; an external memory that exchanges data with the data processing section via an external bus; an external memory control section that performs an access control for the external memory; and a memory selecting section that assigns to at least one of the internal memory and the external memory a data transfer request from the data processing section.
摘要翻译：数据处理装置包括同时发出多个数据传送请求的数据处理部分; 提供在包括数据处理部分的电路内部的内部存储器; 内部存储器控制部分，用于执行内部存储器的访问控制; 外部存储器，经由外部总线与数据处理部件进行数据交换; 执行外部存储器的访问控制的外部存储器控制部分; 以及存储器选择部分，其从数据处理部分向内部存储器和外部存储器中的至少一个分配数据传送请求。

26. 发明授权

US07365888B2 Image read apparatus 有权
标题翻译：图像读取装置
公开(公告)号：US07365888B2
公开(公告)日：2008-04-29
申请号：US10619579
申请日：2003-07-16
申请人： Atsushi Yokochi
发明人： Atsushi Yokochi
IPC分类号： H04N1/04 , H04N1/40
CPC分类号： H04N1/0411 , H04N1/00795 , H04N1/0402 , H04N1/0449 , H04N1/0458 , H04N1/193
摘要： There is disclosed an image read apparatus including an image sensor including: first and second sensors including light receiving devices arranged in one row; a first shift register for outputting the pixel signals of all the light receiving devices of the first sensor; and second and third shift registers for outputting the even-numbered and odd-numbered pixel signals of the light receiving devices of the second sensor, in which invalid data is prevented from being written in a memory. The pixel signals outputted from the first to third shift registers constituting a CCD image sensor with the same transfer clock are selected and taken in via an AFE in a time division. The taken pixel data is successively sampled in a data sampling block and stored in a memory. Moreover, when the sampling timing is controlled in a take-in signal generation circuit, the pixel data stored in the memory is limited to indicate the pixel number of each shift register.
摘要翻译：公开了一种包括图像传感器的图像读取装置，包括：第一和第二传感器，包括布置成一排的光接收装置; 第一移位寄存器，用于输出第一传感器的所有光接收装置的像素信号; 以及用于输出第二传感器的光接收装置的偶数和奇数像素信号的第二和第三移位寄存器，其中防止无效数据被写入存储器中。从构成具有相同传送时钟的CCD图像传感器的第一到第三移位寄存器输出的像素信号被选择并且经由AFE经时分割。取出的像素数据在数据采样块中连续采样并存储在存储器中。此外，当在采集信号生成电路中控制采样定时时，存储在存储器中的像素数据被限制为指示每个移位寄存器的像素数。

27. 发明授权

US07327492B2 Image processing device and image processing method 有权
标题翻译：图像处理装置及图像处理方法
公开(公告)号：US07327492B2
公开(公告)日：2008-02-05
申请号：US10372777
申请日：2003-02-26
申请人： Atsushi Yokochi
发明人： Atsushi Yokochi
IPC分类号： G06F15/00
CPC分类号： H04N1/6072
摘要： In a black character detection processing, RGB data read from a line buffer is converted into YIQ data. For a subject pixel, a subject area centered on the subject pixel is set, and a judgment pixel that has the lowest brightness in the subject area is set. Then, a judgment area is set as being centered on the judgment pixel. If the absolute values of the averages of chroma components I and Q in the judgment area are both less than the corresponding thresholds T1 and T2, the subject pixel is determined as being an achromatic pixel. Black codes are added to fine-line pixels and edge pixels if the fine-line pixels and edge pixels are determined as being achromatic. Thus, the fine-line pixels and edge pixels can be specified as to be printed in black monochromatic ink. Therefore, black character or similar fine-line or edge part images can be outputted with high quality.
摘要翻译：在黑色字符检测处理中，从行缓冲器读取的RGB数据被转换为YIQ数据。对于被摄体像素，设置以对象像素为中心的被摄体区域，并且设定在被摄体区域中具有最低亮度的判断像素。然后，判断区域被设置为以判断像素为中心。如果判断区域中的色度分量I和Q的平均值的绝对值都小于对应的阈值T 1和T 2，则将被摄体像素确定为无彩色像素。如果细线像素和边缘像素被确定为消色差，则黑色代码被添加到细线像素和边缘像素。因此，细线像素和边缘像素可以被指定为打印在黑色单色墨水中。因此，可以高质量地输出黑色字符或类似的细线或边缘部分图像。

28. 发明申请

US20060007497A1 Image processing apparatus 有权
标题翻译：图像处理装置
公开(公告)号：US20060007497A1
公开(公告)日：2006-01-12
申请号：US11175394
申请日：2005-07-07
申请人： Atsushi Yokochi
发明人： Atsushi Yokochi
IPC分类号： G06K15/00
CPC分类号： H04N1/4092 , H04N1/40062
摘要： An image processing apparatus is provided with a luminance component extracting system adapted to extract a luminance component from image data consisting of a plurality of image pixels arrange in a matrix, a first filter, first data being generated as the first filter is applied to the luminance component, an edge detecting system that detects an edge in the first data, a second filter, second data being generated as the second filter is applied to the luminance component, a third filter, third data being generated as the third filter is applied to the luminance component, an outputting system adapted to output the second data and the third data, and a selection controlling system adapted to control, in response to the result of edge detection, the outputting system to selectively output one of the second data and the third data.
摘要翻译：图像处理装置具有：亮度分量提取系统，适于从以矩阵形式排列的多个图像像素构成的图像数据中提取亮度分量，第一滤波器，将第一滤波器应用于亮度时产生的第一数据检测第一数据中的边缘的边缘检测系统，第二滤波器，作为第二滤波器产生的第二数据被施加到亮度分量，第三滤波器，作为第三滤波器产生的第三数据被应用于亮度分量，适于输出第二数据和第三数据的输出系统，以及选择控制系统，其适于响应于边缘检测的结果来控制输出系统以选择性地输出第二数据和第三数据之一。

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