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    • 13. 发明授权
    • Data processing apparatus and DMA data transfer method
    • 数据处理设备和DMA数据传输方式
    • US06708234B2
    • 2004-03-16
    • US09964464
    • 2001-09-28
    • Kiyotaka MotekiNorio MichiieYasuhiro HattoriHiromitsu ShimizuTakao Okamura
    • Kiyotaka MotekiNorio MichiieYasuhiro HattoriHiromitsu ShimizuTakao Okamura
    • G06F1328
    • G06F13/28
    • In a data processing apparatus, an image memory has a descriptor region and an image region, the image region storing a plurality of blocks of image data, the descriptor region storing a corresponding number of descriptor information blocks for the plurality of image data blocks. A DMA controller controls DMA data transfer of the image data blocks from the image region according to each descriptor information block in the descriptor region. The DMA controller comprises a register which stores one of the descriptor information blocks from the descriptor region of the image memory, and a control unit which determines, at a time of occurrence of a CPU interrupt, a start timing of a DMA data output operation of the DMA controller during a DMA data input operation of the DMA controller when an image editing request contained in input image data is received, the CPU interrupt being caused to occur by an interrupt request bit of the descriptor information block read from the register.
    • 在数据处理装置中,图像存储器具有描述符区域和图像区域,所述图像区域存储多个图像数据块,所述描述符区域存储用于所述多个图像数据块的相应数量的描述符信息块。 DMA控制器根据描述符区域中的每个描述符信息块来控制来自图像区域的图像数据块的DMA数据传输。 DMA控制器包括存储来自图像存储器的描述符区域的描述符信息块之一的寄存器,以及控制单元,其在执行CPU中断时确定DMA数据输出操作的开始定时 当接收到包含在输入图像数据中的图像编辑请求时DMA DMA控制器的DMA数据输入操作期间的DMA控制器,由从寄存器读取的描述符信息块的中断请求位引起CPU中断。
    • 14. 发明授权
    • Multi-beam light source device and optical scanning apparatus using the
multi-beam source device
    • 多光束光源装置和使用多光束光源装置的光学扫描装置
    • US5671077A
    • 1997-09-23
    • US184481
    • 1994-01-21
    • Susumu ImakawaKatsumi YamaguchiMakoto HinoNorio MichiieTomohiro Nakajima
    • Susumu ImakawaKatsumi YamaguchiMakoto HinoNorio MichiieTomohiro Nakajima
    • B41J2/45B41J2/465G02B26/08
    • B41J2/465B41J2/451B41J2/473
    • A multi-beam light source device which can be used in an optical scanning device has less optical cross-talk and an improved stability in frequency response. The multi-beam light source device comprises a semiconductor laser array having a plurality of light emitting sources, a light receiving element array having a plurality of light receiving elements and a half mirror splitting a light beam emitted by the semiconductor laser array into at least two split light beams. A light converging unit is provided for converging one of the split light beams at a predetermined focal point. The light receiving element array is positioned at the focal point of the light converging unit for receiving the concentrated one of the split light beams. A controlling circuit is provided for controlling an output of the semiconductor laser array in accordance with the amount of light received by the light receiving element array. Optical cross-talk generated between the split light beams emitted by adjacent ones of the light emitting sources is suppressed by an optical cross-talk suppressing unit.
    • 可用于光学扫描装置的多光束光源装置具有较少的光串扰和改进的频率响应稳定性。 多光束光源装置包括具有多个发光源的半导体激光器阵列,具有多个光接收元件的光接收元件阵列和将由半导体激光器阵列发射的光束分成至少两个 分裂光束。 提供了一种聚光单元,用于在预定焦点处会聚一个分束光束。 光接收元件阵列位于聚光单元的焦点处,用于接收集中的一个分束光束。 提供控制电路,用于根据由光接收元件阵列接收的光量来控制半导体激光器阵列的输出。 通过光学串扰抑制单元抑制由相邻的发光源发射的分离光束之间产生的光束串扰。
    • 15. 发明授权
    • Method and apparatus for image formation that can handle simultaneously input data without causing a delay
    • 用于图像形成的方法和装置,其可以同时处理输入数据而不引起延迟
    • US06449064B1
    • 2002-09-10
    • US09247589
    • 1999-02-10
    • Yasuhiro HattoriNorio Michiie
    • Yasuhiro HattoriNorio Michiie
    • H04N100
    • H04N1/00384H04N1/00411H04N1/32358H04N1/32443H04N1/32512H04N1/32529H04N1/32587H04N1/32603H04N2201/0081H04N2201/0082H04N2201/0087H04N2201/3287
    • An image forming apparatus includes a plurality of memory devices, each including at least one image memory which stores image data. A controller controls input and output operations for the image data relative to the at least one image memory. An image reading device generates image data by scanning and reading an original document. At least one data input device inputs image data generated by an external source. A plurality of input paths transmit the image data generated by the image reading device and the image data input by the at least one data input device. An image memory switching device connects the plurality of input paths to the plurality of memory devices, receives the image data generated by the image reading device and the image data input by the at least one data input device, and switches the plurality of memory devices to transmit consecutive image data, which is consecutively sent through one of the plurality of input paths, to a same memory device among the plurality of memory devices when the image memory switching device receives the image data and the image data through the plurality of input paths.
    • 图像形成装置包括多个存储器件,每个存储器件包括存储图像数据的至少一个图像存储器。 控制器控制图像数据相对于至少一个图像存储器的输入和输出操作。 图像读取装置通过扫描和读取原稿来生成图像数据。 至少一个数据输入设备输入由外部源产生的图像数据。 多个输入路径发送由图像读取装置生成的图像数据和由至少一个数据输入装置输入的图像数据。 图像存储器切换装置将多个输入路径连接到多个存储装置,接收由图像读取装置生成的图像数据和由至少一个数据输入装置输入的图像数据,并将多个存储装置切换为 当图像存储器切换装置通过多个输入路径接收图像数据和图像数据时,将通过多个输入路径之一连续发送的连续图像数据发送到多个存储器件中的相同存储器件。
    • 17. 发明授权
    • Optical recording apparatus capable of controlling optical power of
laser diode array
    • 能够控制激光二极管阵列光功率的光记录装置
    • US5432537A
    • 1995-07-11
    • US62575
    • 1993-05-17
    • Susumu ImakawaKatsumi YamaguchiMakoto HinoNorio Michiie
    • Susumu ImakawaKatsumi YamaguchiMakoto HinoNorio Michiie
    • B41J2/44B41J2/465B41J2/47G02B26/10H01S5/00H04N1/113B41J2/435
    • B41J2/473B41J2/465
    • An optical recording apparatus comprises a laser diode array including a plurality of laser diodes for producing a plurality of laser beams in response to a drive signal indicative of an image, an optical system for scanning the laser beams on a surface of a photosensitive body, a beam splitting unit for splitting the laser beams produced by the laser diodes to form control laser beams; a driver for driving each of the laser diodes in the laser diode array, an optical detection unit provided for detecting the control laser beams, the optical detection unit including a plurality of photodetectors in correspondence to the laser diodes in the laser diode array in a one-to-one relationship, each of the photodetectors producing an output signal indicative of an optical power of the control laser beam incident thereto, and a control unit supplied with the output signals from the photodetectors in the optical detection unit for controlling the driver such that each of the laser diodes in the laser diode array produces the laser beam with a controlled optical power.
    • 光学记录装置包括激光二极管阵列,其包括响应于表示图像的驱动信号产生多个激光束的多个激光二极管,用于扫描感光体表面上的激光束的光学系统, 分束单元,用于分离由激光二极管产生的激光束,以形成控制激光束; 用于驱动激光二极管阵列中的每个激光二极管的驱动器,用于检测控制激光束的光学检测单元,所述光学检测单元包括与激光二极管阵列中的激光二极管对应的多个光电检测器 每个光电检测器产生指示入射到其的控制激光束的光功率的输出信号;以及控制单元,其被提供有来自光学检测单元中的光电检测器的输出信号,用于控制驱动器,使得 激光二极管阵列中的每个激光二极管产生具有受控光功率的激光束。