公开(公告)号：US3633168A

公开(公告)日：1972-01-04

申请号：US3633168D

申请日：1971-03-09

Applicant: IBM

Inventor： DIXON ROY C ,  HASH LARRY J ,  STEEN ROBERT F

IPC: H04L1/00 ,  H04L12/40 ,  H04Q9/00

CPC classification number: H04L1/0083

Abstract: A line adapter interposed between a terminal generating formatted digital messages and a transmission line, the message format containing control characters for activating some but not all of a plurality of commonly communicating terminals. The adapter includes means for continuously detecting control characters used by its corresponding terminal when in the receive mode, and means for selectively altering chance data resembling control characters into noncontrol characters when in a transmit mode. Consequently, remote receiving terminals normally responsive to the control character code through their associated adapter fail to recognize the control character and remain off line.

Abstract translation: 插入在生成格式化数字消息的终端和传输线之间的线路适配器，所述消息格式包含用于激活多个通信终端中的一些而不是全部的控制字符。 该适配器包括用于在处于接收模式时连续检测由其相应终端使用的控制字符的装置，以及用于当处于发送模式时，将类似于控制字符的机会数据选择性地改变成非控制字符的装置。 因此，通常通过其相关联的适配器响应于控制字符代码的远程接收终端不能识别控制字符并保持离线。

公开(公告)号：DE3270802D1

公开(公告)日：1986-05-28

申请号：DE3270802

申请日：1982-11-26

Applicant: IBM

Inventor： BUX WERNER KLAUS DR ,  DIXON ROY C ,  ROTHAUSER ERNST DR

IPC: H04L12/46 ,  H04M9/02 ,  H04L11/16 ,  H04L7/00 ,  H04Q11/04