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1. 发明申请

US20070080753A1 VOLTAGE CONTROLLED OSCILLATOR, PLL CIRCUIT, PULSE MODULATION SIGNAL GENERATING CIRCUIT, SEMICONDUCTOR LASER MODULATION DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：电压控制振荡器，PLL电路，脉冲调制信号发生电路，半导体激光器调制装置和图像形成装置
公开(公告)号：US20070080753A1
公开(公告)日：2007-04-12
申请号：US11608352
申请日：2006-12-08
申请人： Masaaki ISHIDA , Yasuhiro Nihei , Atsufumi Omori , Dan Ozasa
发明人： Masaaki ISHIDA , Yasuhiro Nihei , Atsufumi Omori , Dan Ozasa
IPC分类号： H03L7/00
CPC分类号： H03L7/0812 , H03K3/0315 , H03K3/0322 , H03L7/0891 , H03L7/0995 , H03L7/18
摘要： An oscillation frequency control part includes a voltage-to-current converting circuit converting an input voltage to a current having a value corresponding to the input voltage, and outputting a current in proportion to the current obtained from the voltage-to-current converting circuit. An oscillating circuit part includes a ring oscillator, wherein a current in proportion to the output current of the oscillation frequency control part flows through the ring oscillator so that the oscillation frequency in the ring oscillator is controlled by the output current of the oscillation frequency control part. The voltage-to-current converting circuit has linear voltage-to-current conversion characteristics in a predetermined range of the input voltage including a ground potential.
摘要翻译：振荡频率控制部分包括将输入电压转换为具有与输入电压相对应的值的电流的电压 - 电流转换电路，并且与从电压 - 电流转换电路获得的电流成比例地输出电流。振荡电路部分包括环形振荡器，其中与振荡频率控制部分的输出电流成比例的电流流过环形振荡器，使得环形振荡器中的振荡频率由振荡频率控制部分的输出电流控制。电压 - 电流转换电路在包括接地电位的输入电压的预定范围内具有线性的电压 - 电流转换特性。

2. 发明申请

US20080218813A1 LIGHT SCANNING APPARATUS, LIGHT SCANNING METHOD, IMAGE FORMING APPARATUS, AND COLOR IMAGE FORMING APPARATUS 有权
标题翻译：光扫描装置，光扫描方法，图像形成装置和彩色图像形成装置
公开(公告)号：US20080218813A1
公开(公告)日：2008-09-11
申请号：US11763062
申请日：2007-06-14
申请人： Jun TANABE , Masaaki ISHIDA , Yasuhiro NIHEI , Atsufumi OMORI
发明人： Jun TANABE , Masaaki ISHIDA , Yasuhiro NIHEI , Atsufumi OMORI
IPC分类号： H04N1/04
CPC分类号： H04N1/1912 , H04N1/0473 , H04N1/1917 , H04N2201/0082 , H04N2201/04787
摘要： A light scanning apparatus is provided that has plural light sources which scan plural light beams in a main scanning direction. The light scanning apparatus comprises a light source control unit that controls the plural light sources. Where an array of N (N≧2) light sources aligned in a sub scanning direction and capable of scanning different positions in the sub scanning direction is called a virtual light source array, and where L (L≧2) virtual light source arrays aligned in the sub scanning direction are formed, the light source control unit causes M ((N−1)≧M≧1) light sources out of the N light sources of each of the L virtual light source arrays to emit light to form a pixel and thereby to form a total of L pixels aligned in the sub scanning direction by giving the same data to the M light sources of each of the L virtual light source arrays.
摘要翻译：提供一种具有沿主扫描方向扫描多个光束的多个光源的光扫描装置。光扫描装置包括控制多个光源的光源控制单元。在副扫描方向上排列并能够在副扫描方向上扫描不同位置的N（N> = 2）个光源的阵列被称为虚拟光源阵列，并且其中L（L> = 2）虚拟光源形成在副扫描方向上排列的阵列，光源控制单元使得每个L虚拟光源阵列的N个光源中的M（（N-1）> = M> = 1）个光源发光以形成像素，从而通过向L个虚拟光源阵列中的每一个的M个光源提供相同的数据，形成沿副扫描方向对齐的L个像素的总和。

3. 发明申请

US20070132828A1 OPTICAL SCANNER AND IMAGE FORMING APPARATUS 有权
标题翻译：光学扫描仪和图像形成装置
公开(公告)号：US20070132828A1
公开(公告)日：2007-06-14
申请号：US11565315
申请日：2006-11-30
申请人： Masaaki ISHIDA , Yasuhiro Nihei , Atsufumi Omori , Jun Tanabe
发明人： Masaaki ISHIDA , Yasuhiro Nihei , Atsufumi Omori , Jun Tanabe
IPC分类号： B41J2/455
CPC分类号： B41J2/473 , B41J2/455 , G02B26/123 , G02B26/124
摘要： A disclosed optical scanner includes a light source unit and a control unit configured to control the light source unit. Light emitted from the light source unit is scanned to expose a scan object surface and form an image on the scan object surface. The light source unit includes plural light sources arranged at a density equal to N (N being an integer of two or more) times higher than a density of pixels on the scan object surface. The control unit controls the light source unit such that one pixel is formed by at least two of the light sources.
摘要翻译：所公开的光学扫描器包括光源单元和被配置为控制光源单元的控制单元。从光源单元发射的光被扫描以暴露扫描对象表面并在扫描对象表面上形成图像。光源单元包括以等于扫描对象面上的像素密度的N（N为2以上的整数）的密度排列的多个光源。控制单元控制光源单元，使得一个像素由至少两个光源形成。

4. 发明申请

US20120099165A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20120099165A1
公开(公告)日：2012-04-26
申请号：US13275794
申请日：2011-10-18
申请人： Atsufumi OMORI , Masaaki ISHIDA , Yasuhiro NIHEI , Muneaki IWATA
发明人： Atsufumi OMORI , Masaaki ISHIDA , Yasuhiro NIHEI , Muneaki IWATA
IPC分类号： H04N1/04
CPC分类号： H04N1/506 , G03G15/5058 , H04N1/0473 , H04N1/12 , H04N2201/0471 , H04N2201/04781 , H04N2201/04793
摘要： An image forming apparatus that forms an image includes: a photosensitive element; an optical scanning device that includes a light source, and scans a surface of the photosensitive element in a main scanning direction with light emitted from the light source to form a latent image; a developing unit that develops the latent image; a photosensitive element period detecting sensor that detects a rotation period of the photosensitive element; a density sensor that detects a density variation of an image developed by the developing unit, in a sub scanning direction; and a processing device that corrects a driving signal of the light source according to the image information, based on an output signal of the density sensor and an output signal of the photosensitive element period detecting sensor.
摘要翻译：形成图像的图像形成装置包括：感光元件; 光学扫描装置，其包括光源，并且利用从所述光源发射的光来在所述主扫描方向上扫描所述感光元件的表面以形成潜像; 显影单元，其显影潜像; 感光元件周期检测传感器，其检测感光元件的旋转周期; 密度传感器，其检测由所述显影单元在副扫描方向上显影的图像的浓度变化; 以及处理装置，其基于密度传感器的输出信号和感光元件周期检测传感器的输出信号，根据图像信息校正光源的驱动信号。

5. 发明申请

US20080225106A1 LIGHT-SOURCE DRIVING DEVICE, OPTICAL SCANNING DEVICE, AND IMAGE FORMING APPARATUS 有权
标题翻译：光源驱动装置，光学扫描装置和图像形成装置
公开(公告)号：US20080225106A1
公开(公告)日：2008-09-18
申请号：US12029115
申请日：2008-02-11
申请人： Atsufumi OMORI , Masaaki ISHIDA , Yasuhiro NIHEI , Jun TANABE
发明人： Atsufumi OMORI , Masaaki ISHIDA , Yasuhiro NIHEI , Jun TANABE
IPC分类号： B41J2/435
CPC分类号： B41J2/45
摘要： A circuit for driving a plurality of light emitting units includes a current biasing unit that biases a light emitting current with an overshoot current and supplies the resultant current to each of the light emitting units. The light emitting current is determined based on an amount of light emitted from each of the light emitting units.
摘要翻译：用于驱动多个发光单元的电路包括：电流偏置单元，其利用过冲电流偏置发光电流，并将所得到的电流提供给每个发光单元。基于从每个发光单元发射的光量来确定发光电流。

6. 发明申请

US20170017177A1 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 审中-公开
标题翻译：图像形成装置和图像形成方法
公开(公告)号：US20170017177A1
公开(公告)日：2017-01-19
申请号：US15203081
申请日：2016-07-06
申请人： Muneaki IWATA , Masaaki ISHIDA , Atsufumi OMORI , Hayato FUJITA , Takefumi TAKIZAWA
发明人： Muneaki IWATA , Masaaki ISHIDA , Atsufumi OMORI , Hayato FUJITA , Takefumi TAKIZAWA
IPC分类号： B41J2/385
CPC分类号： G03G15/043 , G03G15/5058
摘要： An image forming apparatus includes a photoconductor drum, a latent-image forming device, a developing device, a density detecting device, and a processing device. The density detecting device is configured to detect densities at a plurality of positions in a main-scanning direction on a developed image. The processing device is configured to acquire at least two light-amount correction tables respectively associated with at least two positions of the plurality of positions in the main-scanning direction on the developed image, the light-amount correction tables being for reducing density variations in a sub-scanning direction at the at least two positions, and correct, for each scan, a set point for setting an amount of light of a light source based on a difference in corresponding correction data between two light-amount correction tables respectively associated with two adjacent positions of the at least two light-amount correction tables.
摘要翻译：图像形成装置包括感光鼓，潜像形成装置，显影装置，浓度检测装置和处理装置。密度检测装置被配置为检测显影图像上的主扫描方向上的多个位置的密度。处理装置被配置为获取分别与显影图像上的主扫描方向上的多个位置中的至少两个位置相关联的至少两个光量校正表，该光量校正表用于减少密度变化在所述至少两个位置处的副扫描方向，并且对于每个扫描，校正用于基于分别与...的光量校正表之间的对应校正数据的差设置光源的光量的设定点所述至少两个光量校正表的两个相邻位置。

7. 发明申请

US20150180200A1 LIGHT SOURCE DRIVE CIRCUIT, OPTICAL SCANNING APPARATUS, SEMICONDUCTOR DRIVE CIRCUIT, AND IMAGE FORMING APPARATUS 审中-公开
标题翻译：光源驱动电路，光学扫描装置，半导体驱动电路和图像形成装置
公开(公告)号：US20150180200A1
公开(公告)日：2015-06-25
申请号：US14622414
申请日：2015-02-13
申请人： Hayato FUJITA , Atsufumi OMORI , Muneaki IWATA , Masaaki ISHIDA
发明人： Hayato FUJITA , Atsufumi OMORI , Muneaki IWATA , Masaaki ISHIDA
IPC分类号： H01S5/042 , B41J2/455 , H01S5/026 , H01S5/183 , H01S5/068
CPC分类号： H01S5/0425 , B41J2/435 , B41J2/455 , B41J2/471 , G06K15/1209 , H01S5/0261 , H01S5/0427 , H01S5/06 , H01S5/068 , H01S5/183 , H05B37/02 , Y02B20/202
摘要： A light source drive circuit which drives a light source is disclosed, including a drive current generating unit which generates a drive current, the driving current including a predetermined current for obtaining a predetermined light amount from the light source; and first and second overshoot currents which are applied to the predetermined current in synchronization thereto; and a control unit which sets, to the drive current generating unit, a value of the first overshoot current to a fixed value, and a value of the second overshoot current in accordance with a light amount output from the light source.
摘要翻译：公开了一种驱动光源的光源驱动电路，包括产生驱动电流的驱动电流产生单元，包括用于从光源获得预定光量的预定电流的驱动电流; 以及与其同步地施加到预定电流的第一和第二过冲电流; 以及控制单元，其根据从光源输出的光量将驱动电流产生单元的第一过冲电流的值设定为固定值，以及第二过冲电流的值。

8. 发明申请

US20160247050A1 IMAGE FORMING APPARATUS AND METHOD FOR DRIVING LIGHT SOURCE 有权
标题翻译：图像形成装置和驱动光源的方法
公开(公告)号：US20160247050A1
公开(公告)日：2016-08-25
申请号：US15048240
申请日：2016-02-19
申请人： Hayato FUJITA , Masaaki ISHIDA , Atsufumi OMORI , Muneaki IWATA
发明人： Hayato FUJITA , Masaaki ISHIDA , Atsufumi OMORI , Muneaki IWATA
IPC分类号： G06K15/02
CPC分类号： G06K15/1873 , G06K2215/0057 , H04N1/00 , H04N1/00822 , H04N1/0402 , H04N1/2361 , H04N2201/0458 , H04N2201/3252
摘要： An image forming apparatus includes: an image processor configured to perform first image processing on image data having a first resolution and to add tag data to a target pixel where second image processing is to be performed; a resolution converter configured to convert the image data into image data having a second resolution higher than the first resolution, and to perform the second image processing based on arrangement of the image data having the first resolution and the tag data; a pulse generator configured to generate an on-off modulation signal and an application-current switching signal in accordance with the image data having undergone the second image processing; and a light source driver configured to drive the light source in accordance with a current setting value output from an application current setter depending on the application-current switching signal and the on-off modulation signal.
摘要翻译：图像形成装置包括：图像处理器，被配置为对具有第一分辨率的图像数据执行第一图像处理，并且将标签数据添加到要执行第二图像处理的目标像素; 分辨率转换器，被配置为将图像数据转换为具有高于第一分辨率的第二分辨率的图像数据，并且基于具有第一分辨率和标签数据的图像数据的布置来执行第二图像处理; 脉冲发生器，被配置为根据经过第二图像处理的图像数据产生开 - 关调制信号和施加电流切换信号; 以及光源驱动器，被配置为根据应用电流设置器根据应用电流切换信号和开关调制信号输出的电流设定值来驱动光源。

9. 发明申请

US20160234399A1 LIGHT SOURCE DRIVE CONTROL DEVICE, IMAGE FORMING APPARATUS, LIGHT SOURCE DRIVE CONTROL METHOD, AND COMPUTER PROGRAM PRODUCT 有权
标题翻译：光源驱动控制装置，图像形成装置，光源驱动控制方法和计算机程序产品
公开(公告)号：US20160234399A1
公开(公告)日：2016-08-11
申请号：US15015364
申请日：2016-02-04
申请人： Atsufumi OMORI , Masaaki ISHIDA , Muneaki IWATA , Hayato FUJITA
发明人： Atsufumi OMORI , Masaaki ISHIDA , Muneaki IWATA , Hayato FUJITA
IPC分类号： H04N1/04 , H04N1/00 , H04N1/40
CPC分类号： H04N1/0446 , H04N1/00822 , H04N1/0408 , H04N1/40037 , H04N1/40068 , H04N1/4092
摘要： A light source drive control device includes: an image data generating part that generates line-thinned image data having been subjected to line thinning processing for thinning an edge pixel in image data by a first pixel width; an intensity information generating part that generates intensity information including a first intensity at which a pixel not included in a set second pixel width of an edge in the line-thinned image data is exposed and a second intensity at which a pixel included in the second pixel width is exposed and which is higher than the first intensity; and a light source driving part that drives a light source based on a light source modulation signal generated according to the line-thinned image data and a drive current data switched based on a drive current switching signal generated based on the intensity information.
摘要翻译：光源驱动控制装置包括：图像数据生成部，其生成已经进行了用于将图像数据中的边缘像素稀疏第一像素宽度的线间距处理的线稀疏图像数据; 产生强度信息的强度信息生成部，其生成强度信息，所述强度信息包括第一强度，所述第一强度不包括在所述线条稀疏图像数据中的边缘的设定的第二像素宽度中的像素被曝光;以及第二强度，所述第二强度包括所述第二像素宽度暴露，高于第一强度; 以及光源驱动部，其基于根据线条化图像数据生成的光源调制信号和基于基于强度信息生成的驱动电流切换信号而切换的驱动电流数据来驱动光源。

10. 发明申请

US20160274521A1 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 有权
标题翻译：图像形成装置和图像形成方法
公开(公告)号：US20160274521A1
公开(公告)日：2016-09-22
申请号：US15067660
申请日：2016-03-11
申请人： Muneaki IWATA , Masaaki ISHIDA , Atsufumi OMORI , Naoto WATANABE , Hayato FUJITA
发明人： Muneaki IWATA , Masaaki ISHIDA , Atsufumi OMORI , Naoto WATANABE , Hayato FUJITA
IPC分类号： G03G15/00 , G03G15/043
CPC分类号： G03G15/5041 , G03G15/04072 , G03G15/043 , G03G15/5054 , G03G2215/0132 , G03G2215/0164
摘要： An image forming apparatus includes: a photoconductor drum; an optical scanning device that drives a light source to scan a surface of the photoconductor drum and form a latent image on the surface; a developing device that develops the latent image; and a density detector to detect density variation of an image in a rotation direction of the photoconductor drum, the image being developed by the developing device. The optical scanning device includes a processing device that is capable of correcting a driving signal for driving the light source on a basis of an output signal of the density detector to adjust at least either one of a correction period and a correction strength of correction data for the driving signal for a rotation period of the photoconductor drum.
摘要翻译：一种成像设备包括：感光鼓; 光学扫描装置，其驱动光源以扫描感光鼓的表面并在表面上形成潜像; 显影装置，用于显影潜像; 以及密度检测器，用于检测感光鼓的旋转方向上的图像的浓度变化，该图像由显影装置显影。光学扫描装置包括处理装置，该处理装置能够根据密度检测器的输出信号校正用于驱动光源的驱动信号，以调整校正周期和校正数据的校正强度中的至少一个，感光鼓的旋转周期的驱动信号。

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