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1. 发明申请

US20070109582A1 Image data storage device, photocopier, image forming system, and image data storage method 审中-公开
标题翻译：图像数据存储装置，复印机，图像形成系统和图像数据存储方法
公开(公告)号：US20070109582A1
公开(公告)日：2007-05-17
申请号：US11595238
申请日：2006-11-09
申请人： Yoshio Mizuyama
发明人： Yoshio Mizuyama
IPC分类号： G06F3/12
CPC分类号： H04N1/41
摘要： A image data storage device includes an image data input unit, an image data recording unit, a compression processing unit, a region decision unit, and a compression control unit. The image data input unit receives input of image data. The image data recording unit records image data inputted by the image input unit. The compression processing unit compresses image data to be recorded in the image data recording unit. The region decision unit decides whether or not image data which has been inputted by the image input unit is image data related to an edge portion region of an image. And the compression control unit controls the compression processing unit so that compression processing is canceled for image data which has been decided, by the region decision unit, to be image data related to an edge portion region of an image.
摘要翻译：图像数据存储装置包括图像数据输入单元，图像数据记录单元，压缩处理单元，区域判定单元和压缩控制单元。图像数据输入单元接收图像数据的输入。图像数据记录单元记录由图像输入单元输入的图像数据。压缩处理单元压缩要记录在图像数据记录单元中的图像数据。区域判定单元判定由图像输入单元输入的图像数据是否是与图像的边缘部分区域有关的图像数据。并且压缩控制单元控制压缩处理单元，使得由区域判定单元确定的图像数据的压缩处理被取消为与图像的边缘部分区域相关的图像数据。

2. 发明授权

US06488353B1 Image forming apparatus diagnosing print head and optical system conditions based on printed test pattern 有权
标题翻译：基于印刷测试图案诊断打印头和光学系统条件的图像形成设备
公开(公告)号：US06488353B1
公开(公告)日：2002-12-03
申请号：US09584313
申请日：2000-05-31
申请人： Motoyuki Itoyama , Michiyuki Suzuki , Yoshio Mizuyama
发明人： Motoyuki Itoyama , Michiyuki Suzuki , Yoshio Mizuyama
IPC分类号： B41J29393
CPC分类号： B41J2/0451 , B41J2/04586 , B41J29/393
摘要： An image forming apparatus which can detect a defect in a nozzle and an optical system, and inform an execution of maintenance. The apparatus comprises a scanner which reads an image; a print head which prints an image; a test pattern image data ROM stored a test pattern; and an image processing unit which diagnoses a defect in the print head and the scanner by processing data of the test pattern which is read by the scanner.
摘要翻译：一种图像形成装置，其能够检测喷嘴和光学系统中的缺陷，并通知维护的执行。该装置包括读取图像的扫描仪; 打印头的打印头; 测试图案图像数据ROM存储测试图案; 以及图像处理单元，其通过处理由扫描仪读取的测试图案的数据来诊断打印头和扫描仪中的缺陷。

3. 发明授权

US07266641B2 CPU, information processing device including the CPU, and controlling method of CPU 有权
标题翻译： CPU，包括CPU的信息处理装置以及CPU的控制方法
公开(公告)号：US07266641B2
公开(公告)日：2007-09-04
申请号：US10719814
申请日：2003-11-21
申请人： Naoyuki Kamei , Sohichi Yoshimura , Michiaki Nishimura , Yoshio Mizuyama , Hiroki Kinoshita , Takahiro Minami
发明人： Naoyuki Kamei , Sohichi Yoshimura , Michiaki Nishimura , Yoshio Mizuyama , Hiroki Kinoshita , Takahiro Minami
IPC分类号： G06F12/08
CPC分类号： G06F1/3203 , G06F1/324 , G06F1/3275 , G06F1/3287 , G06F9/5016 , G06F9/5094 , G06F12/0802 , Y02D10/126 , Y02D10/13 , Y02D10/14 , Y02D10/171 , Y02D10/22
摘要： A CPU includes a bus interface, a control unit, an instruction cache, a data cache, a secondary cache, an instruction decoder, an arithmetic unit, and registers. When operations can be performed only with the cache, the CPU inhibits access to external memory and stops power supply to the external memory. With this arrangement, by performing operations in the CPU without using the external memory, it is possible to realize a speedy processing and to stop power supply to the external memory, thus allowing for reduction in power consumption.
摘要翻译： CPU包括总线接口，控制单元，指令高速缓存，数据高速缓存，二级高速缓存，指令解码器，运算单元和寄存器。当只能使用缓存执行操作时，CPU禁止访问外部存储器，并停止向外部存储器供电。利用这种布置，通过在不使用外部存储器的情况下在CPU中执行操作，可以实现快速处理并停止对外部存储器的供电，从而允许降低功耗。

4. 发明授权

US06813043B1 Image processing device, image forming device incorporating the same, and storage medium for storing program used thereby 有权
标题翻译：图像处理装置，包含该图像处理装置的图像形成装置，以及用于存储由此使用的程序的存储介质
公开(公告)号：US06813043B1
公开(公告)日：2004-11-02
申请号：US09626399
申请日：2000-07-26
申请人： Yoshio Mizuyama , Michiyuki Suzuki
发明人： Yoshio Mizuyama , Michiyuki Suzuki
IPC分类号： H04N152
CPC分类号： H04N1/52
摘要： Corrected values C1, M1, and Y1 corrected in a quasi-grayscale processing section of an image forming device by an error diffusion technique performed for each channel are evaluated in threshold value sections provided for individual channels, so as to determine whether or not they are greater than threshold values. If an overlapping CMY dot formation detector section detects that the density is higher than the threshold value in all of the three channels, a minimum density channel identifying section instructs a first quantized value substitution section and varies the outputs from the threshold value sections, so that the output in the channel with the lowest density has a value that does not represent dot formation. As a result, overlapping dot formation for the three channels is interrupted. Consequently, an image processing device capable of restraining occurrence of dark blotches and decrease in saturation can be offered without losing dot balance between channels even when a quasi-grayscale process is executed for each channel.
摘要翻译：在为每个通道执行的误差扩散技术在图像形成装置的准灰度处理部分中校正的校正值C1，M1和Y1在针对各个通道提供的阈值部分中被评估，以便确定它们是否是大于阈值。如果重叠的CMY点形成检测器部分检测到所有三个信道中的密度都高于阈值，则最小密度信道识别部分指示第一量化值替换部分并且改变来自阈值部分的输出，使得具有最低密度的通道中的输出具有不表示点形成的值。结果，三个通道的重叠点形成被中断。因此，即使对每个通道执行准灰度处理，也可以提供能够抑制黑斑发生和饱和度降低的图像处理装置，而不会在通道之间失去点平衡。

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