公开(公告)号：US07814223B2

公开(公告)日：2010-10-12

申请号：US12010762

申请日：2008-01-29

Applicant: Hiroshi Arita ,  Yasuhiro Nakatsuka ,  Yasuwo Watanabe ,  Kei Ouchi ,  Yoshihiro Tanaka ,  Toshinobu Kanai ,  Masanobu Tanaka ,  Kenji Furuhashi ,  Tomoaki Aoki

Inventor： Hiroshi Arita ,  Yasuhiro Nakatsuka ,  Yasuwo Watanabe ,  Kei Ouchi ,  Yoshihiro Tanaka ,  Toshinobu Kanai ,  Masanobu Tanaka ,  Kenji Furuhashi ,  Tomoaki Aoki

IPC: G06F13/00

CPC classification number: H04L47/6255 ,  H04L12/44 ,  H04L47/10 ,  H04L47/2458 ,  H04L47/30 ,  H04L47/522 ,  H04L49/205 ,  H04L49/3018 ,  H04L49/351

Abstract: A transmit packet generated by a CPU 1 is held in a buffer 100a (100b). From among packets received from Ethernet 820a (820b), a packet, a destination of which is a communication device 800, is held in the buffer 100a (100b). A packet which should be transmitted is transmitted from a transfer judging circuit 200 to Ethernet 820a or 820b through a MAC unit 300a or 300b. If a transfer judging circuit 200 judges a packet from the Ethernet 820a to be a packet, a destination of which is another communication device, with reference to a destination MAC address, this packet is transferred to the Ethernet 820b through MAC 300b. If a usage rate of a transferring FIFO buffer 130a (130b) exceeds a threshold value in the process of transmitting a packet held in a transmitting FIFO buffer 120a (130b) on a priority basis, the priority order of a transfer packet is made higher than that of a transmit packet so that the transfer packet is transferred to the Ethernet 820a or 820b in preference to the transmit packet. This prevents a transfer buffer means from overflowing.

Abstract translation: 由CPU1生成的发送包被保存在缓冲器100a（100b）中。 从从以太网820a（820b）接收的分组中，其目的地是通信设备800的分组被保存在缓冲器100a（100b）中。 应该发送的分组通过MAC单元300a或300b从传送判断电路200发送到以太网820a或820b。 如果传输判断电路200将来自以太网820a的分组判断为分组，则其目的地是另一个通信设备，参考目的地MAC地址，该分组通过MAC 300b被传送到以太网820b。 如果传送FIFO缓冲器130a（130b）的使用率在发送FIFO缓冲器120a（130b）中保持的分组的优先级的基础上超过阈值，则传送分组的优先级顺序高于 传输分组的传输分组优先于传送分组传送到以太网820a或820b。 这防止了传送缓冲器装置溢出。

公开(公告)号：US07751094B2

公开(公告)日：2010-07-06

申请号：US11649408

申请日：2007-01-04

Applicant: Kei Ouchi

Inventor： Kei Ouchi

IPC: H04N1/46 ,  H04N1/04

CPC classification number: H04N1/1013 ,  H04N1/193 ,  H04N2201/0081 ,  H04N2201/02493 ,  H04N2201/0446

Abstract: An image reading apparatus for generating image data corresponding to a document image, includes: an irradiating section for irradiating light rays to an image bearing surface of a document; a housing formed with a slit for restrictedly passing light rays reflected from the image bearing surface of the document; a photoelectric conversion element for converting an optical image made of the light rays having passed through the slit of the housing to an electric signal; and an optical system for guiding the light rays having passed through the slit of the housing to the photoelectric conversion element. The housing has a light restrictor at each of the both ends of the slit. The light restrictor projects toward the image bearing surface of the document to thereby keep light rays reflected from an area outside a reading area of the image bearing surface of the document from entering the slit.

Abstract translation: 一种用于产生对应于文件图像的图像数据的图像读取装置，包括：用于将光线照射到文件的图像承载表面上的照射部分; 壳体，形成有狭缝，用于限制从所述文件的图像承载表面反射的光线; 光电转换元件，用于将通过壳体的狭缝的光线形成的光学图像转换成电信号; 以及用于将已经穿过壳体的狭缝的光线引导到光电转换元件的光学系统。 壳体在狭缝的两端的每一端具有限流器。 光限制器朝向文件的图像承载表面突出，从而保持从文档的图像承载表面的读取区域外部的区域反射的光线进入狭缝。

公开(公告)号：US20100012852A1

公开(公告)日：2010-01-21

申请号：US12503463

申请日：2009-07-15

Applicant: Masahiro Higashitani ,  Kei Ouchi

Inventor： Masahiro Higashitani ,  Kei Ouchi

IPC: G01J1/58 ,  G03G15/04

CPC classification number: H04N1/02815 ,  G01J1/04 ,  G01J1/0422 ,  G01J1/0477 ,  H04N1/0285 ,  H04N1/02855 ,  H04N1/02865 ,  H04N1/1013 ,  H04N1/193 ,  H04N2201/0091

Abstract: The present invention aims at providing an image reading device and an image forming apparatus including a light guiding body having a first emission surface and a second emission surface. A color copy machine includes a luminescence portion including: LEDs composed of a plurality of dot-shaped luminescence members disposed at predetermined intervals in a main scanning direction and/or an elongated luminescence member that is formed to extend in the main scanning direction; and a light guiding body that is disposed between the LEDs and an original, and has a light incidence portion disposed on a side to the LEDs and an emission portion disposed on a side to the original. The emission portion has a first emission surface and a second emission surface that is formed on a different plane from a plane including the first emission surface.

Abstract translation: 本发明旨在提供一种图像读取装置和图像形成装置，其包括具有第一发射表面和第二发射表面的导光体。 彩色复印机包括发光部分，其包括：LED，其由沿主扫描方向以预定间隔设置的多个点状发光部件和/或形成为沿主扫描方向延伸的细长发光部件组成; 以及导光体，其设置在LED与原稿之间，并且具有设置在LED侧的光入射部和配置在原稿侧的发光部。 发射部分具有形成在与包括第一发射表面的平面不同的平面上的第一发射表面和第二发射表面。

公开(公告)号：US20090290199A1

公开(公告)日：2009-11-26

申请号：US12468981

申请日：2009-05-20

Applicant: Hirotoshi Tagawa ,  Masahiro Higashitani ,  Katsuhiko Okamoto ,  Yasuyuki Horiguchi ,  Kei Ouchi ,  Sou Takahashi

Inventor： Hirotoshi Tagawa ,  Masahiro Higashitani ,  Katsuhiko Okamoto ,  Yasuyuki Horiguchi ,  Kei Ouchi ,  Sou Takahashi

IPC: H04N1/04

CPC classification number: H04N1/02815 ,  H04N1/0285 ,  H04N1/02855 ,  H04N1/02865 ,  H04N1/0289 ,  H04N1/1013 ,  H04N1/193

Abstract: The present invention is aimed at providing an image reading device that suppresses generation of a so-called edge shadow while suppressing uneven intensity of light emitted onto an original. A color copy machine 1 includes an illumination portion 347a that irradiates an original G with light. The illumination portion 347a includes a plurality of LEDs 501 disposed at predetermined intervals in a main scanning direction, an elliptical diffuser plate 507 that is disposed between the plurality of LEDs 501 and the original G and causes the light emitted by the plurality of LEDs 501 to diffuse, and a second reflection mirror 541B that reflects light, which is a portion of the light diffused by the elliptical diffuser plate 507 and not directly irradiated onto the original G, so as to irradiate the light onto the original G.

Abstract translation: 本发明旨在提供一种图像读取装置，其抑制所谓的边缘阴影的产生，同时抑制发射到原稿上的光的不均匀强度。 彩色复印机1包括用光照射原稿G的照明部分347a。 照明部分347a包括沿主扫描方向以预定间隔设置的多个LED 501，设置在多个LED 501和原始G之间的椭圆形漫射板507，并且使由多个LED 501发射的光 以及反射光的第二反射镜541B，其是由椭圆形扩散板507漫射并且不直接照射到原稿G上的光的一部分，以便将光照射到原稿G上。