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1. 发明授权

US4839802A Adaptation of computer to communication operation 失效
标题翻译：计算机适应通信运行
公开(公告)号：US4839802A
公开(公告)日：1989-06-13
申请号：US932472
申请日：1986-11-19
申请人： Daniel C. Wonak , Steven J. Butz , William A. Miller, II
发明人： Daniel C. Wonak , Steven J. Butz , William A. Miller, II
IPC分类号： G06F13/12
CPC分类号： G06F13/124
摘要： A communication adapter for a personal computer or computer terminal is interposed between the computer process unit and its accessory units, such as a keyboard, a printer and a display monitor; the adapter includes a data memory for storing data and actuation signals from the keyboard, from the process unit, and from a communication port on the adapter, together with transmission logic circuits for transmitting data from the memory through the communication port, and accessory logic circuits for supplying data from the memory to the printer and to the monitor. The adapter further includes a microprocessor with a program memory, responsive to signals from the keyboard, that actuates the adapter between a computer mode of operation in which the computer process unit is effectively connected to the accessory units for operation of the computer as if the adapter were not present, and a communication mode in which the adapter and the accessory units function as a telecommunication transceiver independent of the computer process unit. In the computer mode the adapter remains active as an automated telecommunication transceiver, recording incoming data from its communication port in the data memory and transmitting previously recorded data from the memory.
摘要翻译：用于个人计算机或计算机终端的通信适配器插入在计算机处理单元及其附件单元之间，诸如键盘，打印机和显示器监视器; 该适配器包括用于从来自键盘，来自处理单元以及来自适配器的通信端口的数据和致动信号与用于通过通信端口从存储器传输数据的传输逻辑电路以及附件逻辑电路用于将数据从存储器提供给打印机和显示器。适配器还包括具有程序存储器的微处理器，其响应于来自键盘的信号，其在计算机操作模式之间致动适配器，其中计算机处理单元有效地连接到附件单元以用于计算机的操作，就像适配器不存在，以及通信模式，其中适配器和附件单元用作独立于计算机处理单元的电信收发器。在计算机模式中，适配器作为自动化电信收发器保持活动，从数据存储器中的通信端口记录输入数据，并从存储器发送先前记录的数据。

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