首页> 外国专利> DMA TRANSFER POSSIBILITY/IMPOSSIBILITY REPORTING SYSTEM

DMA TRANSFER POSSIBILITY/IMPOSSIBILITY REPORTING SYSTEM

机译:DMA传输可能性/不可能性报告系统

摘要

PURPOSE:To perform DMA transfer efficiently by receiving a DMA transmission transfer permitting signal from an IP unit part, which is connected between a facsimile terminal and a host computer, by a communication processor after the end of DMA transmission and DMA-transferring picture information of the following page. CONSTITUTION:A connecting device between the host computer and the facsimile terminal consists of the communication processor and the IP unit part, and this unit part is provided with a DMA transmission transfer permitting signal generating means. Every one block consisting of parts F, M, and L of one-page components of picture information stored in the communication processor is transmitted to the IP unit part and is expanded and developed, and thereafter, a following page indicating command PMC is transmitted from the host computer to the IP unit part to store compressed picture information in the idle area of an image memory, and a DMA reception transfer request signal DR from the communication controller is received by the unit part, and the compressed information is transferred following a DMA reception transfer permitting signal PWK.
机译:目的:在DMA传输结束后,通过通信处理器从通信单元从连接在传真终端和主机之间的IP单元部件接收DMA传输传输允许信号,以有效地执行DMA传输。下一页。组成:主机与传真终端之间的连接设备由通信处理器和IP单元组成,该单元部分配有DMA传输允许传输信号生成装置。由存储在通信处理器中的图像信息的一页成分的部分F,M和L组成的每一个块被发送到IP单元部分,并被扩展和展开,此后,从其发送指示命令PMC的下一页主机将其压缩后的图像信息存储到IP单元,以将其存储在图像存储器的空闲区域中,并从通信单元接收来自通信控制器的DMA接收传输请求信号DR,然后按照DMA传输压缩信息接收传送允许信号PWK。

著录项

  • 公开/公告号JPS61190650A

    专利类型

  • 公开/公告日1986-08-25

    原文格式PDF

  • 申请/专利权人 FUJITSU LTD;

    申请/专利号JP19850031022

  • 发明设计人 MUNAKATA AKIO;YAGI TOSHIRO;

    申请日1985-02-19

  • 分类号G06F13/28;

  • 国家 JP

  • 入库时间 2022-08-22 07:48:17

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号