Boots – shoes – and leggings
Patent
1995-03-03
1996-05-07
Teska, Kevin J.
Boots, shoes, and leggings
364443, B63H 2500
Patent
active
055152872
ABSTRACT:
A navigation supporting display apparatus makes it easy for an operator of ship to navigate with a safe passing distance between own ship and a target by indicating an exact danger area between own ship and the target ship. The apparatus has a collision point calculator which calculates a possible collision point of each of the vertexes of a polygonal safe passing region set around own ship, and the target ship, from a relative position of the target ship, a velocity vector of the target ship and a velocity of own ship. The apparatus has an own-ship-mapping-position calculator which calculates a position at which own ship would be located when each of the vertexes places on the collision point, and defines the position as a own-ship-mapping-position. The apparatus further has a danger area calculator which determines lines joining own-ship-mapping-positions corresponding to the collision points with each other to define a danger area. The relation between connected own-ship-mapping-positions and the own-ship-mapping-positions are output to a display device, and the display device displays the area defined by the lines joining own-ship-mapping-positions as a danger area together with the position and the vector of own ship and the position of the target ship.
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Hakoyama Tadashige
Kato Yoshio
Maeda Satoki
Yagi Osamu
Yamaguchi Hideo
O'Reilly David
Teska Kevin J.
Tokimec Inc.
Walder, Jr. Stephen J.
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