Gimbal employing differential combination of offset drives
US5769748A · kind A · utility
1,190Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1997 |
| Grant date | Jun 23, 1998 |
| Priority date | — |
| Expiry date | Jan 16, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1913
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A gimbal system includes a pair of stepper motors that drive respective drive trains of a differential drive assembly such as a differential gear assembly. Either the drive ratios or the step sizes for the two motors are offset from each other to provide four modes of operation, including modes for improved resolution and faster slew rate, and two intermediate modes with more balanced resolution and slew rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.