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公开(公告)号：US20190245999A1
公开(公告)日：2019-08-08
申请号：US16329874
申请日：2016-09-08
发明人： Eric Andersen , Ryan M Smith , Shannon Lai , Jennifer Waskow
CPC分类号： H04N1/1235 , H04N1/00994 , H04N1/02815
摘要： In one example, an apparatus includes a transparent platen to receive a document to be scanned. The transparent platen includes a scan line, an ingress edge positioned prior to the scan line in the document path, and a chamfered egress edge positioned subsequent to the document path. A light source is positioned to illuminate the document with light while the document passes across the scan line, and a focusing mechanism is positioned to focus a portion of the light that is reflected by the document onto a sensor that senses the portion of the light.
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公开(公告)号：US20190075215A1
公开(公告)日：2019-03-07
申请号：US16117319
申请日：2018-08-30
发明人： Yasutomo Tanaka
IPC分类号： H04N1/00
CPC分类号： H04N1/00994 , H04N1/00037 , H04N1/00074 , H04N1/00344 , H04N1/00933
摘要： An image processing apparatus capable of suppressing degradation of the image quality of output image data, caused by electrostatic noise, without increasing a circuit scale. The image processing apparatus transmits image data obtained by reading an original, in synchronism with a synchronization signal. Noise in the synchronization signal is detected and eliminated. An image is printed using the image data. The number of times of detection of the noise is counted, and a notification indicative of the number of times of detection of the noise is made.
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公开(公告)号：US20180270383A1
公开(公告)日：2018-09-20
申请号：US15913334
申请日：2018-03-06
发明人： JUN ZHANG , JIANGHUA YANG , XINING DING
CPC分类号： H04N1/00994 , H04N1/00909 , H04N1/1061 , H04N1/2034
摘要： An image forming apparatus includes an image scanning device, which comprises: a document tray to load an original document to be scanned; a discharge tray to load the original document after being scanned; and a frame which the document tray and the discharge tray are mounted on. A conveyance path is formed inside the frame to connect the document tray and the discharge tray. The frame contains a conveying structure to convey the original document along the conveyance path; a transparent support member located below the conveyance path to support the original document; a scanning member located below the transparent support member, the scanning member having a scanning position in which the scanning member scans the original document when being located on the transparent support member; and a pressing member disposed above the transparent support member and facing the scanning member for pressing the original document onto the transparent support member.
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公开(公告)号：US09876927B2
公开(公告)日：2018-01-23
申请号：US14960531
申请日：2015-12-07
发明人： Yuichiro Osawa , Yu Shuhama
CPC分类号： H04N1/00994 , G03G15/60 , G03G21/1633 , G03G21/1647 , G03G21/1652 , H04N1/00543 , H04N1/00551 , H04N1/00554 , H04N1/0083 , H04N2201/0091
摘要： An image reading device is movable between a first position and a second position spaced farther apart from an image forming device than the first position, and a regulating member configured to regulate respective positions of two cables maintains, when the image reading device is at the first position, the two cables, respectively, in a bent state in a direction away from each other.
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公开(公告)号：US20170094092A1
公开(公告)日：2017-03-30
申请号：US15041724
申请日：2016-02-11
申请人： FUJI XEROX CO., LTD.
发明人： Motohiro ASANO
CPC分类号： H04N1/00994 , H04N1/0083 , H04N1/00933 , H04N1/409 , H04N1/56 , H04N2201/0091
摘要： A noise suppressing device includes a first circuit board not being grounded; a second circuit board connected to the first circuit board through a transmission line including a signal line that transmits a high-frequency signal and a ground line, the second circuit board including a ground layer being grounded; and a high-frequency reducing element that is arranged between the ground layer of the second circuit board and the ground line of the transmission line and that reduces a high-frequency signal excited at the ground line of the transmission line.
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公开(公告)号：US20160156800A1
公开(公告)日：2016-06-02
申请号：US14952220
申请日：2015-11-25
发明人： Jie ZHENG
CPC分类号： H04N1/00994 , H04N1/00005 , H04N1/00018 , H04N1/00068 , H04N1/00082 , H04N1/00904 , H04N1/02815 , H04N1/60
摘要： An image scanning apparatus has a scanner configured to read an original sheet on a line basis at a constant line cycle and generate analog image data for each pixel of the line, and output the analog image data for each pixel at a pixel cycle, a power source including a DC/DC converter configured to convert a first DC voltage to a second DC voltage by applying a switching control to the first DC voltage at a switching cycle, the second DC voltage being supplied to the scanner, a convertor configured to sample the analog image data at the pixel cycle to convert the analog image data to digital image data, a sampling setting unit configured to set the pixel cycle, and a controller configured to cause the sampling setting unit to set the pixel cycle to be an integer multiple of the switching cycle of the DC/DC convertor.
摘要翻译： 图像扫描装置具有扫描器，其被配置为以恒定的行周期以线为单位读取原稿，并为该行的每个像素生成模拟图像数据，并以像素周期输出每个像素的模拟图像数据， 源，包括DC / DC转换器，被配置为通过在开关周期对第一DC电压施加开关控制将第一DC电压转换为第二DC电压，第二DC电压被提供给扫描器，转换器被配置为对 模拟图像数据，以将模拟图像数据转换为数字图像数据;被配置为设置像素周期的采样设置单元，以及控制器，被配置为使得采样设置单元将像素周期设置为 DC / DC转换器的开关周期。
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公开(公告)号：US09143644B2
公开(公告)日：2015-09-22
申请号：US14453867
申请日：2014-08-07
发明人： Koji Hirai
CPC分类号： H04N1/00557 , H04N1/00994
摘要： An image forming apparatus can suppress the degradation of an image signal due to electrostatic discharge with a simple configuration. An original feeder unit is supported openably and closably by a hinge mechanism fixed on a bottom member of an image reading unit. An image sensor substrate of an image reading unit and an image processing substrate of an image forming unit are connected by a cable. An electrically conductive connecting portion electrically connects a bottom member of the image reading unit with a casing of the image forming unit, and is arranged along the cable. The bottom member has a notch formed therein, the connecting portion is fixed to the bottom member so as to extend over the notch, and the cable is arranged so as to pass through an opening portion thereby formed in a direction from above to below of the bottom member.
摘要翻译： 图像形成装置能够以简单的结构抑制由静电放电引起的图像信号的劣化。 原始馈送单元由固定在图像读取单元的底部构件上的铰链机构可开启和闭合地支撑。 图像读取单元的图像传感器基板和图像形成单元的图像处理基板通过电缆连接。 导电连接部将图像读取单元的底部构件与图像形成单元的壳体电连接，并且沿着电缆布置。 底部构件具有形成在其中的凹口，连接部分固定在底部构件上以便在凹口上延伸，并且电缆布置成穿过开口部分，从而形成在从上方到下方的方向上 底部成员。
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公开(公告)号：US08891140B2
公开(公告)日：2014-11-18
申请号：US13904410
申请日：2013-05-29
申请人： Oki Data Corporation
发明人： Hidenori Ueda
CPC分类号： H04N1/00557 , H04N1/00994 , H04N1/0464 , H04N1/1017 , H04N1/1039 , H04N1/1061 , H04N1/12 , H04N1/193 , H04N2201/0456
摘要： An image reading apparatus according to the invention includes a transparent member on which an original document is placed, a reading unit arranged below the transparent member, the reading unit being movable reciprocally in a reading direction of the original document, a spacer member arranged at the reading unit for maintaining a prescribed interval between the transparent member and the reading unit by contacting to the transparent member, and an electrostatic removing member arranged at a position close to the spacer member when the reading unit is positioned at a prescribed position.
摘要翻译： 根据本发明的图像读取装置包括在其上放置原始文档的透明构件，布置在透明构件下方的读取单元，读取单元可沿着原始文档的读取方向往复运动，间隔构件布置在 读取单元，用于通过与透明构件接触而在透明构件和读取单元之间保持规定的间隔;以及当读取单元位于规定位置时布置在靠近间隔构件的位置处的静电去除构件。
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29.发明授权Spread spectrum clock generator, spread spectrum clock generating method, and circuit, image reading device and image forming apparatus using the spread spectrum clock generator 有权扩频时钟发生器，扩频时钟产生方法，电路，图像读取装置和使用扩频时钟发生器的图像形成装置公开(公告)号：US08416461B2
公开(公告)日：2013-04-09
申请号：US12796107
申请日：2010-06-08
申请人： Masamoto Nakazawa
发明人： Masamoto Nakazawa
CPC分类号： H03L7/18 , H03C3/0916 , H03C3/095 , H04N1/00994 , H04N2201/0081
摘要： The spread spectrum clock generator (SSCG) includes a phase comparator detecting phase difference between input clock and feedback clock; a charge pump supplying current depending on the phase difference; a loop filter converting the current to smoothed voltage; a voltage controlled oscillator generating a spread spectrum clock signal depending on the smoothed voltage; and a modulation signal generator generating modulation signal having amplitude depending on a modulation width set value. The SSCG further includes a modulation width detector detecting modulation width of the spread spectrum clock signal while comparing the modulation width with a modulation width target value to update the modulation width set value to narrow difference between the detected modulation width and the modulation width target value, followed by feeding back the updated modulation width set value to the modulation signal generator.
摘要翻译： 扩频时钟发生器（SSCG）包括检测输入时钟和反馈时钟之间的相位差的相位比较器; 电荷泵根据相位差提供电流; 将电流转换成平滑电压的环路滤波器; 产生根据平滑电压的扩频时钟信号的压控振荡器; 产生具有取决于调制宽度设定值的振幅的调制信号的调制信号发生器。 SSCG还包括调制宽度检测器，用于检测扩频时钟信号的调制宽度，同时将调制宽度与调制宽度目标值进行比较，以将调制宽度设置值更新为检测调制宽度与调制宽度目标值之间的差异， 然后将更新的调制宽度设置值反馈给调制信号发生器。
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公开(公告)号：US08144350B2
公开(公告)日：2012-03-27
申请号：US12016239
申请日：2008-01-18
申请人： Young Jin Park
发明人： Young Jin Park
IPC分类号： H04N1/04
CPC分类号： H04B15/04 , G06K15/1219 , H04N1/00994
摘要： An image forming apparatus including a video controller that increases or reduces a pulse width of video data when video data is generated in synchronization with a video clock so as to vary a frequency of the video data. It is possible to effectively cope with emission of electromagnetic waves (electromagnetic interference) whose frequency increases when the same type of pulses is repeated, so that the electromagnetic waves are out of the recognition range of a user and image quality is prevented from deteriorating.
摘要翻译： 一种图像形成装置，包括视频控制器，当与视频时钟同步地生成视频数据时，增加或减小视频数据的脉冲宽度，以便改变视频数据的频率。 可以有效地应对当重复相同类型的脉冲时频率增加的电磁波（电磁干扰）的发射，使得电磁波不在用户的识别范围内，并且防止图像质量恶化。
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