Vibration Generation Device for Haptic Feedback Without Hand-Shake Interference
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image capturing devices that use electronic shutters to prevent vibration during exposure lack effective methods to inform the user of image capture without disrupting quietness or accuracy, as traditional audio and visual feedback methods are either noisy or intermittent.
Innovation Solution
A vibration generation device that produces vibrations in a frequency band different from the range used for hand-shake correction, allowing for haptic feedback without interfering with image stabilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If vibration is generated in the first frequency band for haptic feedback, then the user can recognize image capturing, but hand-shake correction control is affected and image blur occurs
Solution Approach 1:
The vibration frequency spectrum is segmented into multiple bands: a first frequency band (e.g., 50-200 Hz) reserved for hand-shake correction control, and a second frequency band (e.g., 200-500 Hz or higher) used for haptic feedback. By segmenting the frequency spectrum and assigning different functions to different bands, the system enables both hand-shake correction and user feedback without mutual interference.
Solution Approach 2:
The system changes the frequency parameter of vibration from the conventional first frequency band to a second frequency band that is higher and does not overlap with the hand-shake correction band. This parameter change allows the vibration motor to generate haptic feedback while the hand-shake correction unit can independently correct vibrations in the lower frequency band without being affected by the feedback vibration.
2Object-generated harmful factors
If electronic shutter is used to prevent vibration, then quietness is maintained, but user cannot recognize image capturing execution
Solution Approach 1:
The system introduces a vibration motor as an intermediary device that generates haptic feedback through the housing to inform the user of image capturing execution. Unlike audio feedback that compromises quietness, this tactile intermediary provides silent notification that does not disrupt the peaceful environment while still conveying operational status to the user.
Solution Approach 2:
The system replaces traditional audio or visual feedback mechanisms with a mechanical haptic feedback system. Instead of using speakers that generate sound or displays that require visual attention, the system uses a vibration motor to create tactile sensations through the device housing, allowing users to perceive image capturing through touch rather than sound or sight.
3Loss of information
If display device is used for visual feedback, then user can recognize image capturing, but user can only intermittently recognize object and cannot accurately recognize image capturing
Solution Approach 1:
The system employs mechanical vibration as a continuous tactile signal to communicate image capturing status to the user. When the vibration motor operates at a frequency distinguishable from hand-shake correction vibrations, it provides ongoing haptic feedback that allows users to continuously perceive whether image capturing is active, eliminating the need to intermittently check a display device.
Data Source
AI summary
A vibration generation device capable of feeding back execution of image capturing to an image capturing person without affecting hand-shake correction control includes a vibration unit that generates vibration and a vibration control unit that performs vibration control on the vibration unit. In accordance with image capturing operation of an image capturing device, the vibration control unit causes the vibration unit to generate vibration at a second frequency band different from a first frequency band that the image capturing device has as a vibration range used for hand-shake correction control.