System for protecting AMPS data using CDPD channel
    2.
    发明授权
    System for protecting AMPS data using CDPD channel 失效
    使用CDPD通道保护AMPS数据的系统

    公开(公告)号:US06876863B1

    公开(公告)日:2005-04-05

    申请号:US10175568

    申请日:2002-06-18

    CPC分类号: H04W88/06

    摘要: A portable radio telephone handset includes the capability of operating as a data transfer terminal as well as an analog cellular telephone subscriber station. Two modes of operation are available in the handset, an analog cellular communication mode and a Cellular Digital Packet Data (CDPD) mode. A paging function for incoming analog cellular communication is carried out on a CDPD channel. The handset distinguishes between paging signals identifying CDPD mode communications and paging signals identifying analog cellular communications. The handset automatically preempts CDPD communications in favor of analog cellular communications such as those carried out in an AMPS configuration. To maintain the security of the handset ID, AMPS communications can be set up and controlled using CDPD control channels.

    摘要翻译: 便携式无线电话手机包括作为数据传送终端以及模拟蜂窝电话用户台操作的能力。 在手机,模拟蜂窝通信模式和蜂窝数字分组数据(CDPD)模式中可以使用两种操作模式。 用于输入模拟蜂窝通信的寻呼功能在CDPD信道上进行。 手机区分识别CDPD模式通信的寻呼信号和识别模拟蜂窝通信的寻呼信号。 手机自动抢占CDPD通信,有利于诸如在AMPS配置中执行的模拟蜂窝通信。 为了保持手机ID的安全性,可以使用CDPD控制信道来建立和控制AMPS通信。

    Portable radio telephone data terminal using cdpd
    3.
    发明授权
    Portable radio telephone data terminal using cdpd 失效
    便携式无线电话数据终端使用cdpd

    公开(公告)号:US06463271B1

    公开(公告)日:2002-10-08

    申请号:US08481627

    申请日:1995-06-07

    IPC分类号: H04M1100

    CPC分类号: H04W76/20 H04W88/06

    摘要: A portable radio telephone handset includes the capability of operating as a data transfer terminal as well as an analog cellular telephone subscriber station. Two modes of operation are available in the handset, an analog cellular communication mode and a Cellular Digital Packet Data (CDPD) mode. A paging function for incoming analog cellular communication is carried out on a CDPD channel. The handset distinguishes between paging signals identifying CDPD mode communications and paging signals identifying analog cellular communications. The handset automatically preempts CDPD communications in favor of analog cellular communications such as those carried out in an AMPS configuration. To maintain the security of the handset ID, AMPS communications can be set up and controlled using CDPD control channels.

    摘要翻译: 便携式无线电话手机包括作为数据传送终端以及模拟蜂窝电话用户台操作的能力。 在手机,模拟蜂窝通信模式和蜂窝数字分组数据(CDPD)模式中可以使用两种操作模式。 用于输入模拟蜂窝通信的寻呼功能在CDPD信道上进行。 手机区分识别CDPD模式通信的寻呼信号和识别模拟蜂窝通信的寻呼信号。 手机自动抢占CDPD通信,有利于诸如在AMPS配置中执行的模拟蜂窝通信。 为了保持手机ID的安全性,可以使用CDPD控制信道来建立和控制AMPS通信。