公开(公告)号：US5491720A

公开(公告)日：1996-02-13

申请号：US887433

申请日：1992-05-21

申请人： Gordon T. Davis ,  Judith M. Linger ,  Baiju D. Mandalia ,  John C. Sinibaldi ,  William M. Zevin ,  Karl-Heinz Ziegenhain

发明人： Gordon T. Davis ,  Judith M. Linger ,  Baiju D. Mandalia ,  John C. Sinibaldi ,  William M. Zevin ,  Karl-Heinz Ziegenhain

IPC分类号： H04L25/02 ,  H04L27/00 ,  H04L29/06 ,  H04B1/38

CPC分类号： H04L29/06 ,  H04L25/0262 ,  H04L27/0012 ,  H04L69/18

摘要： A method and system in a data communications system for automatically determining a data communication device type and a transmission speed associated with the data communication device type. An incoming communication is detected on a transmission line, and transmit and receive hardware are connected to the transmission line. Next, a sequence of different signals in either a first communication protocol or a second communication protocol are transmitted from a first data communication device via a transmission line. The transmission line is then monitored for a response signal from a second data communication device. The response signal is initiated from the second data communication device in response to receipt of a particular signal within the transmitted sequence of different signals. Utilizing the relationship between the response signal and the transmitted sequence of different signals, a data communication device type and transmission speed are determined, and data communications may then be established between the first data communication device and the second data communication device at an optimal transmission speed.

摘要翻译： 一种用于自动确定与数据通信设备类型相关联的数据通信设备类型和传输速度的数据通信系统中的方法和系统。 在传输线上检测到进入通信，并且发送和接收硬件连接到传输线。 接下来，通过传输线从第一数据通信设备发送第一通信协议或第二通信协议中的不同信号的序列。 然后监测传输线路的来自第二数据通信设备的响应信号。 响应于响应于在所发送的不同信号序列内的特定信号的接收，响应信号从第二数据通信设备发起。 利用响应信号和不同信号的发送序列之间的关系，确定数据通信设备类型和传输速度，然后可以以最佳传输速度在第一数据通信设备和第二数据通信设备之间建立数据通信 。