Vibration reduction apparatus having feedback path for motion signal, and camera system
US7522188B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2005 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Dec 6, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A vibration reduction apparatus estimates a reference value from a vibration detection signal, and determines a target drive position from a difference between the vibration detection signal and the estimated reference value. A driving unit drives a vibration reduction mechanism so that the vibration reduction mechanism makes a follow-up movement to the target drive position. The vibration reduction apparatus has a feedback path for feeding back a motion signal to the reference value. A feedback control unit for changing the feedback amount of the motion signal in accordance with a difference in an analytical condition of the motion signal is provided on the feedback path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.