公开(公告)号：US5530844A

公开(公告)日：1996-06-25

申请号：US194777

申请日：1994-02-10

申请人： David L. Phillips ,  Wayne C. Kahn ,  Tina M. Rodrigo ,  Laurence A. Clawson ,  Kevin P. Staggs

发明人： David L. Phillips ,  Wayne C. Kahn ,  Tina M. Rodrigo ,  Laurence A. Clawson ,  Kevin P. Staggs

IPC分类号： G06F13/00 ,  G06F3/14 ,  G06F3/153 ,  G06F15/16 ,  G06F15/177 ,  H04L12/46 ,  G06F3/00

CPC分类号： H04L12/46

摘要： An interface provides a path to transfer data from a proprietary network to an open system. The proprietary network includes at least one module central processing unit (CPU) and a module memory associated therewith operatively connected to the proprietary network. A shared memory and shared memory logic are interposed between the proprietary network and the open system, thereby forming the data path. The method comprises the steps of accepting requests for data from the open system by a parasitic task function within the module CPU. The data requested of the proprietary network is obtained and placed in a predetermined location of the module memory in a form understandable to the open systems. A pointer value is placed in the shared memory, the pointer value containing the value of the predetermined location of the module memory, the shared memory being mapped in the addressable memory space of the shared memory logic using virtual memory techniques. The data is obtained directly from the module memory utilizing the pointer value corresponding to the data requested, thereby allowing open systems to access the proprietary system while maintaining the integrity of the proprietary network.

摘要翻译： 接口提供了将数据从专有网络传输到开放系统的路径。 专用网络包括至少一个模块中央处理单元（CPU）和与其相关联的模块存储器，其可操作地连接到专有网络。 共享存储器和共享存储器逻辑插入专用网络和开放系统之间，从而形成数据路径。 该方法包括以下步骤：通过模块CPU内的寄生任务功能接受来自开放系统的数据请求。 获取专有网络所请求的数据，并将其以开放系统可理解的形式放置在模块存储器的预定位置。 指针值被放置在共享存储器中，指针值包含模块存储器的预定位置的值，共享存储器使用虚拟存储器技术被映射到共享存储器逻辑的可寻址存储器空间中。 使用与所请求的数据相对应的指针值，直接从模块存储器获得数据，从而允许开放系统访问专有系统，同时保持专有网络的完整性。