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US 5,397,276 AGranted
Pulse encoder resolution adjustment apparatus
AssigneeR. R. Donnelley & Sons Company
InventorBobby Chang
Life of this patent
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Abstract
An adjustment apparatus is disclosed which adjusts the resolution of a pulse encoder. The adjustment apparatus includes at least first and second pulley sets having different pulley ratios and having substantially equal belt perimeters. A pulley belt has a belt circumference substantially equal to the belt perimeters. The pulley belt is transferable from one pulley set to the other so as to adjust the resolution of the pulse encoder.
Claims29
An apparatus for supplying pulses comprising:
- a first shaft coupled to an input;
- pulse supplying means for supplying pulses, wherein the pulses have a pulse rate, and wherein the pulse supplying means has a resolution:
- a second shaft coupled to the pulse supplying means so that the pulse rate is a function of the second shaft;
- a first pulley set coupled to the first and second shafts, wherein the first pulley set has a first pulley ratio;
- a second pulley set coupled to the first and second shafts, wherein the second pulley set has a second pulley ratio, and wherein the first and second pulley ratios are different;
- and,
- a pulley belt transferable between the first and second pulley sets so as to adjust the resolution of the pulse supplying means.
4 more elements
An apparatus comprising:
- a first shaft coupled to a drive input;
- a pulse encoder:
- a second shaft coupled to the pulse encoder;
- a first pulley set having a first pulley ratio, the first pulley set having a first pulley coupled to the first shaft and a second pulley coupled to the second shaft;
- a second pulley set having a second pulley ratio, the second pulley set having a first pulley coupled to the first shaft and a second pulley coupled to the second shaft, wherein the first and second pulley ratios are different, and wherein the first and second pulley sets have substantially equal belt perimeters;
- and,
- a single pulley belt having a length so that the pulley belt is substantially coextensive with the belt perimeters, wherein the pulley belt is arranged to transfer motion from the first pulley to the second pulley of the first pulley set or from the first pulley to the second pulley of the second pulley set.
4 more elements
An apparatus comprising:
- pulse supplying means for supplying pulses, the pulse supplying means having a resolution;
- a drive shaft;
- and,
- motion transferring means for transferring motion of the drive shaft to the pulse supplying means and for adjusting the resolution of the pulse supplying means.
1 more element
Dependencies are inferred from the claim text.