公开(公告)号：US20100253981A1

公开(公告)日：2010-10-07

申请号：US12725760

申请日：2010-03-17

Applicant: Makoto HIGASHIYAMA ,  Yoshiaki KAWAI ,  Shingo NISHIZAKI ,  Tomohide KONDOH ,  Masashi SUZUKI

Inventor： Makoto HIGASHIYAMA ,  Yoshiaki KAWAI ,  Shingo NISHIZAKI ,  Tomohide KONDOH ,  Masashi SUZUKI

IPC: H04N1/409

CPC classification number: H04N1/506 ,  H04N1/3878

Abstract: An image forming apparatus includes a skew correcting unit that performs skew correction by dividing an input image that has undergone a halftone process into image data in a predetermined skew correction area in a main scanning direction and by shifting the image data in the skew correction area in a sub-scanning direction; an edge detecting unit that detects whether a pixel at a division position is an edge pixel based on concentrations of a set of pixels including the pixel at the division position; a correction area determining unit that, if detected that the pixel at the division position is the edge pixel, determines a correction area that is an area of pixels including the edge pixel to be subjected to concentration correction within the skew correction area; and an edge correcting unit that corrects concentrations of the pixels within the correction area.

Abstract translation: 图像形成装置包括：偏斜校正单元，其通过将经过半色调处理的输入图像划分为主扫描方向上的预定歪斜校正区域中的图像数据，并且通过将倾斜校正区域中的图像数据移位 副扫描方向; 边缘检测单元，其基于包括分割位置处的像素的像素的集合的浓度来检测分割位置处的像素是否为边缘像素; 校正区域确定单元，如果检测到分割位置处的像素是边缘像素，则确定作为在倾斜校正区域内要进行浓度校正的边缘像素的像素区域的校正区域; 以及校正校正区域内的像素的浓度的边缘校正单元。

公开(公告)号：US20160112602A1

公开(公告)日：2016-04-21

申请号：US14870079

申请日：2015-09-30

Applicant: Yoshiaki KAWAI

Inventor： Yoshiaki KAWAI

IPC: H04N1/32 ,  H04N1/46 ,  H04N1/00

CPC classification number: H04N1/32635 ,  H04N1/00015 ,  H04N1/00029 ,  H04N1/00082 ,  H04N1/00925 ,  H04N1/46 ,  H04N2201/0003 ,  H04N2201/0094

Abstract: An abnormal noise operation control device includes an abnormal noise storage device to store an abnormal noise at the time of a fault of an apparatus in advance, an operation noise acquisition device to acquire an operation noise of the apparatus, an audible sound determination device to determine whether or not the operation noise acquired is audible sound, discomfort noise determination device to determine whether or not the audible sound is a discomfort noise, a fault determination device to determine whether or not the operation noise is abnormal by comparing the operation noise with the abnormal noise, an abnormal noise cause determination device to identify a part causing the operation noise determined as at least one of the discomfort noise and the abnormal noise, and an abnormal noise countermeasures device to restrict operations that use the part and allow operations that do not use the part.

Abstract translation: 异常噪声运转控制装置包括异常噪声存储装置，用于在装置发生故障时预先存储异常噪声，操作噪声获取装置，用于获取装置的操作噪声，声音判定装置，用于确定 是否获取的操作噪声是可听见的声音，不适噪声确定装置，用于确定可听见的声音是否是不适噪声;故障确定装置，通过将操作噪声与异常进行比较来确定操作噪声是否异常 异常噪声原因确定装置识别导致作为不适噪声和异常噪声中的至少一个的操作噪声的部分，以及异常噪声对策装置，以限制使用该部分的操作并允许不使用的操作 那个部分。

公开(公告)号：US20090231606A1

公开(公告)日：2009-09-17

申请号：US12404601

申请日：2009-03-16

Applicant: Yoshiaki KAWAI ,  Shingo NISHIZAKI ,  Makoto HIGASHIYAMA ,  Tomohide KONDOH ,  Masashi SUZUKI

Inventor： Yoshiaki KAWAI ,  Shingo NISHIZAKI ,  Makoto HIGASHIYAMA ,  Tomohide KONDOH ,  Masashi SUZUKI

IPC: H04N1/60

CPC classification number: H04N1/506

Abstract: An image forming apparatus capable of minimizing degradation in density correction as a part of skew correction includes a noise-occurrence determining unit, a correction-target-pixel selecting unit, a density correcting unit, and a phase correcting unit. When the noise-occurrence determining unit determines that noise would appear, the density correcting unit performs density correction on a correction target pixel that is determined by the correction-target-pixel selecting unit. The phase correcting unit corrects an output point in time of image data of the density-corrected correction target pixel in a pixel period during which the image data can be output so as to output the image data at a position displaced away from a shift position or toward a shift position.

Abstract translation: 作为偏斜校正的一部分，能够将密度校正的劣化最小化的图像形成装置包括噪声发生判定单元，校正对象像素选择单元，浓度校正单元和相位校正单元。 当噪声发生确定单元确定出现噪声时，浓度校正单元对由校正对象像素选择单元确定的校正目标像素执行浓度校正。 相位校正单元在可以输出图像数据的像素周期中校正经密度校正的校正目标像素的图像数据的输出点，以便将图像数据输出在离开位置偏移的位置，或 朝向班位。