Blur Correction Control Apparatus for Power-Efficient LPF Driving
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Solution Overview
Problem
Existing image capturing apparatuses lack an optimal method for performing Low-Pass Filter (LPF) driving using both optical and image capturing plane blur correction units, which affects blur correction and power consumption.
Innovation Solution
An apparatus and method that utilize a processor to detect apparatus shake and control either a lens-side or camera-side blur correction unit to perform a periodic operation, optimizing LPF driving by selecting the unit with lower power consumption to achieve an LPF effect while minimizing power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If both blur correction units are used for LPF driving, then the LPF effect is achieved, but power consumption increases
Solution Approach 1:
The patent extracts the LPF driving function from the dual-blur correction system by assigning it to only one blur correction unit, while the other unit is dedicated solely to blur correction. This separation eliminates the power consumption waste of operating both units for LPF driving while maintaining the LPF effect through the single active unit.
Solution Approach 2:
The patent implements periodic action by controlling one blur correction unit to perform periodic LPF driving operations at high frequency with minute amplitudes, while the other unit performs continuous or on-demand blur correction operations based on detected shake. This periodic operation pattern achieves the LPF effect while managing power consumption through controlled activation cycles.
2Use of energy by moving object
If one blur correction unit performs LPF driving, then power consumption is reduced, but blur correction performance may be affected
Solution Approach 1:
The patent segments the functions of the two blur correction units by assigning LPF driving to one unit and blur correction to the other unit. This functional segmentation ensures that each unit operates optimally for its designated purpose, maintaining blur correction performance through the dedicated unit while the other unit handles LPF driving with periodic operations.
Solution Approach 2:
The patent applies dynamics by enabling flexible switching and coordination between the two blur correction units based on operational requirements. The control unit dynamically assigns tasks - one unit performs LPF driving with periodic high-frequency operations while the other performs blur correction, allowing the system to adapt power consumption and performance based on real-time needs.
Data Source
AI summary
An apparatus includes an obtaining unit configured to obtain information related to as shake detected by a sensor, and a control unit configured to cause one correction device, out of a first correction device that is positioned in a lens and that can correct a blur based on the information related to the shake and a second correction device that is positioned in a capturing apparatus and that can correct image blur based on the information related to the shake, to perform a blur correction operation, and configured to cause the other correction device, out of the first correction device and the second correction device, to perform a periodic operation.