Boots – shoes – and leggings
Patent
1986-06-26
1988-10-11
Lall, Parshotam S.
Boots, shoes, and leggings
364447, 318588, 114144RE, G05D 102, G06F 1550
Patent
active
047776021
ABSTRACT:
A heading change unit for a ship's autopilot gyrocompass that provides a heading error signal to produce a proportional rudder control signal. An operator enters a heading change which causes an up/down counter to be incremented or decremented in accordance with the heading change order. The counter is also responsive to a step heading input signal. The count is referenced to a zero value and converted to an analog control signal by a digital-to-analog converter. As the ship turns towards the new heading, the changing step heading input will cause the counter to count back to zero. The displayed amount of heading error or ordered heading change is generated by converting the analog heading error signal to a digital encoded format which controls a display. The heading error signal is generated in the form of a parallel twelve bit binary code which represents integer degree changes and 1/6 degree fractional changes.
REFERENCES:
patent: 3746842 (1973-07-01), Fowler
patent: 3772503 (1973-11-01), Fowler
patent: 3975621 (1976-08-01), Fowler
patent: 4071898 (1978-01-01), Schorsch et al.
patent: 4091543 (1978-05-01), Lapeyre
patent: 4179741 (1979-12-01), Rossani
patent: 4374423 (1983-02-01), Kundler et al.
patent: 4542464 (1985-09-01), Kramer
Black Thomas G.
Lall Parshotam S.
Levine Seymour
Sperry Marine Inc.
LandOfFree
Digital autopilot controller for marine vessels does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital autopilot controller for marine vessels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital autopilot controller for marine vessels will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1961966