MULTIPLEXED ADDRESS CONTROL IN A TDM COMMUNICATION SYSTEM
    1.
    发明授权
    MULTIPLEXED ADDRESS CONTROL IN A TDM COMMUNICATION SYSTEM 失效
    EINEM ZEITMULTIPLEX VERMITTLUNGSSYSTEM中的多路复用器ADRESSENSTEUER-SCHALTUNG。

    公开(公告)号:EP0408587B1

    公开(公告)日:1995-06-28

    申请号:EP89903010.0

    申请日:1988-12-21

    申请人: QUALCOMM, INC.

    IPC分类号: H04J3/24 H04B7/26 H04B7/212

    摘要: A message communication system employing one or more centralized communication stations transmitting messages through Earth orbit relay satellites to mobile receivers utilizing Time Division Multiplexed (TDM) communication signals having signal time frames divided into a series of transmission channels. A predetermined number of the channels are designated as address channels with the remainder being used for data transfer. Information transmitted on the address channels is used by receivers to determine both the presence of a message and its corresponding data transmission channel. Each system receiver scans, and tracks only the communication signal address channels until a message addressed to that receiver is detected, at which time the selected receiver changes channels to the designated data channel for reception of the message. Thus, demodulation of the entire communication signal is not required and processing time and power is reduced for the typical waiting condition when messages are not being received. While a message is being received only a portion of the communication signal need to be received, demodulated and decoded. The decoded message is then displayed on a display screen or similar device for the recipient.

    摘要翻译: 一种消息通信系统,其采用一个或多个集中式通信站通过地​​球轨道中继卫星向具有被分成一系列传输信道的信号时分帧的时分多路复用(TDM)通信信号的移动接收机传送消息。 预定数量的信道被指定为地址信道,其余的用于数据传送。 在地址信道上发送的信息被接收机用于确定消息的存在及其对应的数据传输信道。 每个系统接收机扫描并且仅跟踪通信信号地址信道,直到检测到寻址到该接收机的消息,此时所选择的接收机将信道改变到指定的数据信道以接收消息。 因此,当没有接收到消息时,不需要对整个通信信号的解调,并且对于典型的等待条件,处理时间和功率降低。 当正在接收到消息时,仅需要接收,解调和解码通信信号的一部分。 然后将解码的消息显示在用于接收者的显示屏幕或类似设备上。

    MULTIPLEXED ADDRESS CONTROL IN A TDM COMMUNICATION SYSTEM
    3.
    发明公开
    MULTIPLEXED ADDRESS CONTROL IN A TDM COMMUNICATION SYSTEM 失效
    多重复制维多利亚系统中的复用器Adressensteuer-Schaltung。

    公开(公告)号:EP0408587A1

    公开(公告)日:1991-01-23

    申请号:EP89903010.0

    申请日:1988-12-21

    申请人: QUALCOMM, INC.

    IPC分类号: H04B7 H04J3 H04Q7

    摘要: A message communication system employing one or more centralized communication stations transmitting messages through Earth orbit relay satellites to mobile receivers utilizing Time Division Multiplexed (TDM) communication signals having signal time frames divided into a series of transmission channels. A predetermined number of the channels are designated as address channels with the remainder being used for data transfer. Information transmitted on the address channels is used by receivers to determine both the presence of a message and its corresponding data transmission channel. Each system receiver scans, and tracks only the communication signal address channels until a message addressed to that receiver is detected, at which time the selected receiver changes channels to the designated data channel for reception of the message. Thus, demodulation of the entire communication signal is not required and processing time and power is reduced for the typical waiting condition when messages are not being received. While a message is being received only a portion of the communication signal need to be received, demodulated and decoded. The decoded message is then displayed on a display screen or similar device for the recipient.

    摘要翻译: 一种消息通信系统,其采用一个或多个集中式通信站通过地​​球轨道中继卫星向具有被分成一系列传输信道的信号时分帧的时分多路复用(TDM)通信信号的移动接收机传送消息。 预定数量的信道被指定为地址信道,其余的用于数据传送。 在地址信道上发送的信息被接收机用于确定消息的存在及其对应的数据传输信道。 每个系统接收机扫描并且仅跟踪通信信号地址信道,直到检测到寻址到该接收机的消息,此时所选择的接收机将信道改变到指定的数据信道以接收消息。 因此,当没有接收到消息时,不需要对整个通信信号的解调,并且对于典型的等待条件,处理时间和功率降低。 当正在接收到消息时,仅需要接收,解调和解码通信信号的一部分。 然后将解码的消息显示在用于接收者的显示屏幕或类似设备上。