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Data messaging in a communications network    
United States Patent5539810   
Link to this pagehttp://www.wikipatents.com/5539810.html
Inventor(s)Kennedy, III; William C. (Dallas, TX); Westerlage; Kenneth R. (Fort Worth, TX)
AbstractA messaging unit (16) equipped with a cellular transceiver (38) is attached to a truck 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. Upon generation of a data message, the cellular transceiver (38) transmits the data message over the network (10) via voice or data channels. The data message is received at an MTSO (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 the clearinghouse (22) is accessed by a host (26). A data message may be sent over a voice channel 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 the network (10) by altering the mobile identification number (MIN) or electronic serial number (ESN) of the cellular transceiver (38). Furthermore, data messages may be sent over a data channel of the network (10) by issuing a feature request with appended data digits.



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Drawing from US Patent 5539810
Data messaging in a communications network - US Patent 5539810 Drawing
Data messaging in a communications network
Inventor     Kennedy, III; William C. (Dallas, TX); Westerlage; Kenneth R. (Fort Worth, TX)
Owner/Assignee     HighwayMaster Communications, Inc. (Dallas, TX)
Patent assignment
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Publication Date     July 23, 1996
Application Number     08/175,256
PAIR File History     Application Data   Transaction History
Image File Wrapper   Patent Term   Fees
Litigation
Filing Date     December 28, 1993
US Classification    
Int'l Classification    
Examiner     Bost; Dwayne D.
Assistant Examiner     Oehling; G. J.
Attorney/Law Firm     Baker & Botts
Address
Parent Case     RELATED APPLICATIONS This application is a continuation-in-part application of pending U.S. patent application Ser. No. 08/095,166, entitled "Method and Apparatus for a Nation-Wide Cellular Telephone Network," filed on Jul. 20, 1993 and assigned to HM Holding Corporation, of Dallas, Tex., which is a continuation-in-part application of U.S. patent application Ser. No. 07/826,521, entitled "Phantom Mobile Identification Number Method and Apparatus," filed Jan. 27, 1992, and assigned to By-Word Technologies, Inc., of Dallas, Tex., now abandoned.
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Patent Tags     data messaging communications network
   
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