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公开(公告)号:US5832394A
公开(公告)日:1998-11-03
申请号:US900099
申请日:1997-07-25
申请人: Larry C. Wortham
发明人: Larry C. Wortham
IPC分类号: G01D4/00 , G07C5/00 , G08G1/123 , H04B7/185 , H04W4/00 , H04W4/02 , H04W4/04 , H04W8/18 , H04W60/04 , H04W76/02 , H04W88/02 , G01S3/02
CPC分类号: G08G1/20 , G01D4/004 , G07C5/008 , H04B7/18558 , H04W4/02 , H04W76/02 , H04W88/02 , H04W4/00 , H04W4/04 , H04W60/04 , H04W8/183 , Y02B90/242 , Y02B90/246 , Y04S20/322 , Y04S20/42 , Y10S379/913
摘要: A method and apparatus for locating and communicating with vehicles is provided, including at least one mobile cellular unit connected to at least one microprocessor and installed within a vehicle. The microprocessor interrogates the mobile cellular unit to obtain location information from an overhead message stream transmitted from cellular telephone transmitter sites. The location is displayed on a display located in the vehicle or the microprocessor periodically instructs the mobile cellular unit to initiate a call to a host controller and, upon receipt of transmitting instructions from the host controller, transmits the location information for display on a screen connected to the host controller.
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公开(公告)号:US5513111A
公开(公告)日:1996-04-30
申请号:US279211
申请日:1994-07-22
申请人: Larry C. Wortham
发明人: Larry C. Wortham
IPC分类号: G01D4/00 , G07C5/00 , G08G1/123 , H04B7/185 , H04W4/00 , H04W4/02 , H04W4/04 , H04W8/18 , H04W60/04 , H04W76/02 , H04W88/02 , G01S3/02
CPC分类号: G08G1/20 , G01D4/004 , G07C5/008 , H04B7/18558 , H04W4/02 , H04W76/02 , H04W88/02 , H04W4/00 , H04W4/04 , H04W60/04 , H04W8/183 , Y02B90/242 , Y02B90/246 , Y04S20/322 , Y04S20/42 , Y10S379/913
摘要: A method and apparatus for locating and communicating with vehicles is provided, including at least one mobile cellular unit connected to at least one microprocessor and installed within a vehicle. The microprocessor interrogates the mobile cellular unit to obtain location information from an overhead message stream transmitted from cellular telephone transmitter sites. The location is displayed on a display located in the vehicle or the microprocessor periodically instructs the mobile cellular unit to initiate a call to a host controller and, upon receipt of transmitting instructions from the host controller, transmits the location information for display on a screen connected to the host controller.
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