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    • 5. 发明授权
    • Communications data terminal capable of performing a plurality of
communication controls
    • 能够执行多个通信控制的通信数据终端
    • US6163601A
    • 2000-12-19
    • US88536
    • 1998-06-01
    • Tetsuya Kawaguchi
    • Tetsuya Kawaguchi
    • H04N1/32H04M11/00H04M11/06H04N1/00
    • H04M11/06
    • A communications data terminal apparatus that is capable of performing a plurality of communications controls includes a first communications controller performing communications functions including V.8 and V.34 procedures, a second communications controller performing a modem function having a data signaling rate slower than that of the first communications controller. A timer counts a predetermined time period after the first controller sends a CM signal during a calling mode, or a JM signal during a receiving mode. A system controller is used to 1) determine whether the first communications controller receives the JM signal from a remote data terminal apparatus within the predetermined time; 2) stop sending the CM signal and receive a DIS signal when it is determined that no JM signal is received within the predetermined time when the apparatus is operating in the during the calling mode; 3) determines whether the first communications controller receives a CJ signal within the predetermined time; and 4) stop sending the JM signal and sends the DIS signal when no CJ signal is received within the predetermined time when the apparatus is operating in receiving mode.
    • 能够执行多个通信控制的通信数据终端装置包括执行包括V.8和V.34过程的通信功能的第一通信控制器,执行数据信令速率慢于 第一个通讯控制器。 定时器在第一控制器在呼叫模式期间发送CM信号或在接收模式期间的JM信号中计数预定时间段。 系统控制器用于1)确定第一通信控制器是否在预定时间内从远程数据终端设备接收到JM信号; 2)当确定在设备在呼叫模式期间操作的预定时间内确定没有接收到JM信号时,停止发送CM信号并接收DIS信号; 3)确定第一通信控制器是否在预定时间内接收到CJ信号; 以及4)当设备以接收模式操作的预定时间内没有接收到CJ信号时,停止发送JM信号并发送DIS信号。