Facsimile apparatus
    2.
    发明授权
    Facsimile apparatus 失效
    传真机

    公开(公告)号:US4663671A

    公开(公告)日:1987-05-05

    申请号:US691890

    申请日:1985-01-16

    申请人: Toshio Seto

    发明人: Toshio Seto

    IPC分类号: H04N1/411 H04N1/413 H04M1/40

    CPC分类号: H04N1/413

    摘要: A facsimile apparatus capable of saving time necessary for the transmission of video data. Pixel signals provided by scanning a document in both the lengthwise and widthwise directions are digitized, then encoded, and then stored in independent buffer memories. One of the buffer memories storing a smaller amount of video data than the other is chosen to transmit its video data to a remote station over a line.

    摘要翻译: 一种能够节省传输视频数据所需的时间的传真装置。 通过沿长度方向和宽度方向扫描文档提供的像素信号被数字化,然后被编码,然后存储在独立的缓冲存储器中。 选择存储比另一个更少量的视频数据的缓冲存储器之一,以通过一行将其视频数据发送到远程站。

    Image reading apparatus
    3.
    发明授权
    Image reading apparatus 失效
    图像阅读器

    公开(公告)号:US5124810A

    公开(公告)日:1992-06-23

    申请号:US523346

    申请日:1990-05-14

    申请人: Toshio Seto

    发明人: Toshio Seto

    CPC分类号: H04N1/401 H04N1/121 H04N1/193

    摘要: An image reading apparatus for reading an image on a sheet. The apparatus comprises an image reading part for scanning a predetermined area, including the sheet, one scanning line by one scanning line for producing an output image signal. A white reference image part is provided within the predetermined area so as to be scanned by the image reading part. A black reference image part is provided within the predetermined area so as to be scanned by the image reading part. A white reference memory is supplied with the output image signal from the image reading part for storing the output image signal supplied thereto, and a black reference memory is supplied with the output image signal from the image reading part for storing the output image signal supplied thereto. An image correction part is supplied with the output image signal from the image reading part and further with a first reference signal and a second reference signal from the white and black reference memories for producing a corrected image signal. A controller controls the reading operation of the white reference memory and the black reference memory. In the image forming apparatus, the effect of shading is eliminated, the quality of image recording is improved, and the size of the sheet on which the image to be read can be detected.

    摘要翻译: 一种用于读取片材上的图像的图像读取装置。 该装置包括用于扫描包括纸张的预定区域的图像读取部分,一条扫描线由一条扫描线产生输出图像信号。 在预定区域内设置白色参考图像部分,以便被图像读取部分扫描。 在预定区域内设置黑色参考图像部分,以便被图像读取部分扫描。 白图参考存储器被提供有来自图像读取部分的输出图像信号,用于存储提供给其的输出图像信号,黑色参考存储器被提供有来自图像读取部分的输出图像信号,用于存储提供给它的输出图像信号 。 图像校正部分被提供有来自图像读取部分的输出图像信号,并且还提供来自白色和黑色参考存储器的第一参考信号和第二参考信号,以产生校正的图像信号。 控制器控制白色参考存储器和黑色参考存储器的读取操作。 在图像形成装置中,消除了阴影的效果,提高了图像记录的质量,并且可以检测到要读取的图像的片材的尺寸。

    Image reader for facsimile apparatus or the like
    4.
    发明授权
    Image reader for facsimile apparatus or the like 失效
    传真机等的图像读取器

    公开(公告)号:US4601058A

    公开(公告)日:1986-07-15

    申请号:US742094

    申请日:1985-06-06

    申请人: Toshio Seto

    发明人: Toshio Seto

    IPC分类号: H04N1/401 G06K9/38

    CPC分类号: H04N1/401

    摘要: An image reading device for a facsimile apparatus or the like compensates outputs of a line image sensor by shading while reading out a document. When a reference signal representative of a particular pixel is derived from a contaminated portion of a reference or white image, a reference signal representative of a pixel which immediately precedes that particular pixel is substituted for the latter. This promotes accurate shading which is free from the influence of contamination.

    摘要翻译: 用于传真装置等的图像读取装置在读取文档时通过阴影补偿线形图像传感器的输出。 当代表特定像素的参考信号从参考或白色图像的污染部分导出时,表示紧接在该特定像素之前的像素的参考信号被替换为后者。 这促进了不受污染影响的精确阴影。

    Facsimile apparatus with recording density control
    6.
    发明授权
    Facsimile apparatus with recording density control 失效
    具有记录密度控制的传真设备

    公开(公告)号:US5585940A

    公开(公告)日:1996-12-17

    申请号:US551282

    申请日:1995-10-31

    申请人: Toshio Seto

    发明人: Toshio Seto

    CPC分类号: H04N1/40037 H04N1/407

    摘要: In a facsimile apparatus, record density data associated with received data is used to control record density on a paper. At the same time, the emission intensity or pixel-by-pixel emission interval of a light emitting device is controlled to change tonality on a paper pixel by pixel in association with the record density. Hence, even when the record density of received data changes, the present invention prevents the density of a reproduced image from changing and prevents discontinuous lines from being undesirably exaggerated.

    摘要翻译: 在传真设备中,使用与接收数据相关联的记录密度数据来控制纸上的记录密度。 同时,控制发光器件的发光强度或逐像素发射间隔,以与记录密度相关联地逐个像素地改变纸张上的色调。 因此,即使接收到的数据的记录密度变化,本发明也能够防止再现图像的浓度变化,防止不连续的行被不期望地夸大。