公开(公告)号：WO1998019444A1

公开(公告)日：1998-05-07

申请号：PCT/JP1997003905

申请日：1997-10-28

Applicant: MATSUSHITA GRAPHIC COMMUNICATION SYSTEMS, INC. ,  TAKAGI, Genzou ,  NOGUCHI, Yoshihiro

Inventor： MATSUSHITA GRAPHIC COMMUNICATION SYSTEMS, INC.

IPC: H04M11/00

CPC classification number: H04N1/32791 ,  H04N1/33323 ,  H04N1/33338 ,  H04N1/33346 ,  H04N1/33353 ,  H04N1/33369 ,  H04N1/33376 ,  H04N2201/33364

Abstract: The time required for data communication equipment to make communication handshaking is reduced by executing a pre-communication procedure based on pre-stored communication parameters. To be concrete, the modulation mode, communication protocol, MODEM parameters, optimum MODEM training time, etc., set through four communication channels; a communication channel for selecting a modulation mode, communication channel for probing a line, communication channel for training MODEM, and communication channel for setting MODEM parameters are stored at every destination communication equipment and the subsequent communication is performed based on the stored information.

Abstract translation: 通过基于预先存储的通信参数执行预通信过程来减少数据通信设备进行通信握手所需的时间。 具体来说，通过四个通信通道设置调制方式，通信协议，MODEM参数，最优MODEM训练时间等; 在每个目的地通信设备处存储用于选择调制模式的通信信道，用于探测线路的通信信道，用于训练MODEM的通信信道和用于设置MODEM参数的通信信道，并且基于所存储的信息执行后续通信。