发明授权
US5717874A Apparatus for data transfer between image memory and external I/O device wherein inner registers set the image valid area, direction and moder of transfer 失效
图像存储器和外部I / O设备之间的数据传输装置,其中内部寄存器设置图像有效区域,传送方向和模式

  • 专利标题: Apparatus for data transfer between image memory and external I/O device wherein inner registers set the image valid area, direction and moder of transfer
  • 专利标题(中): 图像存储器和外部I / O设备之间的数据传输装置,其中内部寄存器设置图像有效区域,传送方向和模式
  • 申请号: US426290
    申请日: 1995-04-19
  • 公开(公告)号: US5717874A
    公开(公告)日: 1998-02-10
  • 发明人: Masahiro Ishiwata
  • 申请人: Masahiro Ishiwata
  • 申请人地址: JPX Tokyo
  • 专利权人: Fuji Xerox Co., Ltd.
  • 当前专利权人: Fuji Xerox Co., Ltd.
  • 当前专利权人地址: JPX Tokyo
  • 优先权: JPX6-118499 19940531
  • 主分类号: G06F13/36
  • IPC分类号: G06F13/36 G06T1/60 H04N1/21 H04N1/32 G06F3/00 G06F13/38 G06F13/40
Apparatus for data transfer between image memory and external I/O device
wherein inner registers set the image valid area, direction and moder
of transfer
摘要:
In an image input/output control apparatus having three lines of n-bit bidirectional data buses provided on an external apparatus connection side of the apparatus and four lines of n-bit bidirectional data buses provided on an image memory side of the apparatus, there are provided a first inner register for setting the data transfer direction of each of the bidirectional data buses and a second inner register for setting an image valid area, whereby the data transfer direction of each of the bidirectional data buses is determined by a set point of the first inner register and the image valid area is determined by a set point of the second inner register.
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