Boots – shoes – and leggings
Patent
1982-08-06
1985-09-17
Chin, Gary
Boots, shoes, and leggings
364447, 318588, 114144RE, G06F 1550, G05D 108
Patent
active
045424640
ABSTRACT:
Apparatus for steering a vessel and maintaining it on a preset course through the combination and arrangement of an incremental encoder and a heading reference circuit is disclosed. The encoder includes circuitry operative to generate a directional signal and count pulse for each incremental movement of the vessel away from the preset heading and for transmitting same into a heading reference circuit. Counting means are included in the heading reference circuit including adjustable reference setting means to set the counter at a reference position corresponding to the preset heading. The counter is responsive to the pulses received from the incremental encoder to count in a positive or negative direction under the control of the directional signals. A sign-detector in the counter detects whether the total number of pulses is positive or negative with respect to the reference position and generates a signal representative of the direction of the net change.
REFERENCES:
patent: 3843873 (1974-10-01), Beville et al.
patent: 4145605 (1979-03-01), Marcus
patent: 4250403 (1981-02-01), Nomura et al.
Chin Gary
Reilly John E.
The Brunton Company
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