Communications: electrical – Vehicle position indication – Map display
Patent
1987-12-09
1989-12-12
Orsino, Joseph A.
Communications: electrical
Vehicle position indication
Map display
33356, 73178R, 340988, 364449, G08G 112
Patent
active
048870811
ABSTRACT:
An apparatus for displaying a travel path of a running body in which a direction detector includes a geomagnetism sensor as well as a rate-type sensor, such as a gyroscope or gas rate sensor (which includes a flow sensor for detecting a degree of displacement of a gas flow produced by an angular velocity applied thereto) for detecting an angular volocity of change of yawing direction of the moving body, in which a difference in angle between directions detected by the rate-type sensor and the geomagnetism sensor is found and temporarily stored when a power source is temporarily turned OFF during operation of the running path displaying apparatus, and then a declination of the direction detected by the geomagnetism sensor is corrected, depending upon the stored difference in angle, when the power source is turned ON again.
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Iihoshi Akira
Nakamura Yukinobu
Yasui Shinichiro
Honda Giken Kogyo Kabushiki Kaisha
Orsino Joseph A.
Swarthout Brent A.
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