专利名称：DATA MESSAGING IN A COMMUNICATIONS
NETWORK
发明人：KENNEDY, WILLIAM, C., III,WESTERLAGE,
KENNETH, R.
申请号：EP94923566申请日：19940720公开号：EP0710417A4公开日：19990901
摘要：A messaging unit (16) equipped with a cellular transceiver (38) is attached to atruck trailer (12) located within a communications network (10). The messaging unit (16)generates a data message in response to the occurrence of a reporting event. Upongeneration of a data message, the cellular transceiver (38) transmits the data messageover the network (10) via voice or data channels. The data message is received at anMTSO (20) and then routed to a platform (24), a clearinghouse (22), or the platform (24)through the clearinghouse (22). The data message stored at the platform (24) or theclearinghouse (22) is accessed by a host (26). A data message may be sent over a voicechannel of the network (10) subject to a handshake protocol between the messaging unit(16) and the platform (24). Data messages may also be sent over a data channel of thenetwork (10) by altering the mobile identification number (MIN) or electronic serialnumber (ESN) of the cellular transceiver (38). Furthermore, data messages may be sentover a data channel of the network (10) by issuing a feature request with appended datadigits.
申请人：HIGHWAYMASTER COMMUNICATIONS, INC.
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