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1. 发明授权

EP0160072B1 NAVIGATION SYSTEM INCLUDING AN INTEGRATED ELECTRONIC CHART DISPLAY 失效
标题翻译：导航系统，包括集成电子显示屏
公开(公告)号：EP0160072B1
公开(公告)日：1990-05-16
申请号：EP84904021.7
申请日：1984-10-11
申请人： NAVIGATION SCIENCES, INC.
发明人： ROGOFF, Mortimer , WINKLER, Peter, M. , ACKLEY, John, N.
IPC分类号： G01C21/22 , G01S13/86
CPC分类号： G01C21/22 , G01S7/24 , G01S13/86 , Y02A10/41
摘要： A navigation system particularly adapted for ships making a passing within a harbor or the like, utilizing signal inputs from on-board vessel position determining equipment such as Loran or Decca apparatus and an on-board object detecting equipment such as a radar or sonar apparatus. The system further includes an on-board vessel position computer which operates in a differential Loran mode in response to observed Loran time differences, stored data from an initial calibration, and Loran grid offset data from an on-shore monitor system to compute a highly accurate current or present position fix in longitude and latitude whereupon the computer causes a predetermined electronic chart to be displayed in color on the screen of a cathode ray tube, being generated from a plurality of electronic charts stored in the form of digital files in memory. The selected chart, together with the present position of the ship, is displayed along with preselected alpha-numeric indicia of data relating to bearings, way points, ranges, "time to go", etc., also generated in accordance with the computed vessel position. Radar target returns of the local land mass and other stationary moving targets are additionally received by the ship's radar. The radar image of the target echoes is next referenced to and superimposed on the electronic chart generated; however, the radar's land mass echoes are suppressed in favor of the electronic chart land mass while displaying all other targets.

2. 发明公开

EP0160072A1 NAVIGATION SYSTEM INCLUDING AN INTEGRATED ELECTRONIC CHART DISPLAY 失效
标题翻译：集成电子卡片显示装置的导航系统。
公开(公告)号：EP0160072A1
公开(公告)日：1985-11-06
申请号：EP84904021.0
申请日：1984-10-11
申请人： NAVIGATION SCIENCES, INC.
发明人： ROGOFF, Mortimer , WINKLER, Peter, M. , ACKLEY, John, N.
IPC分类号： G01C21 , G01S7 , G01S13
CPC分类号： G01C21/22 , G01S7/24 , G01S13/86 , Y02A10/41
摘要： A navigation system particularly adapted for ships making a passing within a harbor or the like, utilizing signal inputs from on-board vessel position determining equipment such as Loran or Decca apparatus and an on-board object detecting equipment such as a radar or sonar apparatus. The system further includes an on-board vessel position computer which operates in a differential Loran mode in response to observed Loran time differences, stored data from an initial calibration, and Loran grid offset data from an on-shore monitor system to compute a highly accurate current or present position fix in longitude and latitude whereupon the computer causes a predetermined electronic chart to be displayed in color on the screen of a cathode ray tube, being generated from a plurality of electronic charts stored in the form of digital files in memory. The selected chart, together with the present position of the ship, is displayed along with preselected alpha-numeric indicia of data relating to bearings, way points, ranges, "time to go", etc., also generated in accordance with the computed vessel position. Radar target returns of the local land mass and other stationary moving targets are additionally received by the ship's radar. The radar image of the target echoes is next referenced to and superimposed on the electronic chart generated; however, the radar's land mass echoes are suppressed in favor of the electronic chart land mass while displaying all other targets.

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