公开(公告)号：US20140333940A1

公开(公告)日：2014-11-13

申请号：US14268463

申请日：2014-05-02

申请人： Muneaki Iwata ,  Masaaki Ishida ,  Atsufumi Omori ,  Hayato Fujita

发明人： Muneaki Iwata ,  Masaaki Ishida ,  Atsufumi Omori ,  Hayato Fujita

IPC分类号： G06F3/12

CPC分类号： G03G15/043 ,  G03G15/04027 ,  H04N1/40068 ,  H04N1/4058 ,  H04N1/4092

摘要： An image forming apparatus includes: a pseudo-halftone processing unit that processes input image data to output image data of first resolution; a resolution converting unit that converts the image data of the first resolution into image data of second resolution that is higher than the first resolution; a modulation-signal generating unit that generates a modulation signal obtained by modulating the image data of the second resolution according to a clock signal; and a light-source driving unit that drives a light source according to the modulation signal. The pseudo-halftone processing unit converts a region of pixels having the same pixel value into a parallel line pattern that is formed with a plurality of parallel lines oblique relative to a direction of arrangement of pixels. The resolution converting unit generates the image data o in which each edge of the lines forming the parallel line pattern is smoothed.

摘要翻译： 一种图像形成装置包括：伪半色调处理单元，其处理输入图像数据以输出第一分辨率的图像数据; 分辨率转换单元，其将第一分辨率的图像数据转换成高于第一分辨率的第二分辨率的图像数据; 调制信号生成单元，其生成通过根据时钟信号调制所述第二分辨率的图像数据而获得的调制信号; 以及根据调制信号驱动光源的光源驱动单元。 伪半色调处理单元将具有相同像素值的像素的区域转换为平行线图案，该平行线图案形成有相对于像素排列方向倾斜的多条平行线。 分辨率转换单元生成图像数据o，其中形成平行线图案的线的每个边缘被平滑化。

公开(公告)号：US20140176656A1

公开(公告)日：2014-06-26

申请号：US14140147

申请日：2013-12-24

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： B41J2/385 ,  H05B41/24 ,  G02B26/08

CPC分类号： H05B37/0281 ,  G03G15/04036 ,  G03G15/04072 ,  G03G2215/0132 ,  H05B33/0803

摘要： A light source driver includes a controller which outputs an undershoot current in synchronization with lighting complete timing in lighting information, wherein the controller is configured to output the undershoot current such that a voltage in a light source when the output of the undershoot current is complete is equal to a voltage in the light source before being turned on.

摘要翻译： 光源驱动器包括控制器，其与照明信息中的点亮完成定时同步地输出下冲电流，其中，所述控制器被配置为输出下冲电流，使得当下冲电流的输出完成时光源中的电压为 在开启前等于光源中的电压。

公开(公告)号：US20140139603A1

公开(公告)日：2014-05-22

申请号：US14072946

申请日：2013-11-06

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： B41J2/385 ,  H05B41/36 ,  H01S3/00

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。