Camera Microphone Layout for Stereo Sound and Noise Cancellation
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Solution Overview
Problem
Existing image pickup apparatuses with multiple microphones for stereophonic sound recording have complex structures due to separate housings for different microphones, leading to inconsistent vibration transmission and potential processing inefficiencies.
Innovation Solution
The apparatus includes a housing unit with laterally separated first and second microphones for stereophonic sound acquisition and a third microphone for noise cancellation, all disposed in separate storing units, simplifying the structure and ensuring consistent vibration transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a third microphone is placed in a separate second housing from the first and second microphones, then the microphones can be independently positioned, but the structure becomes complicated and requires dedicated holding members
Solution Approach 1:
The patent merges the third microphone with the first housing that contains the first and second microphones, eliminating the need for a separate second housing. This consolidation reduces structural complexity while maintaining the ability to independently position all three microphones within the unified housing space.
Solution Approach 2:
The first housing serves multiple functions by accommodating not only the first and second microphones but also the third microphone. This multi-functional design eliminates the need for dedicated holding members for the third microphone, simplifying the overall structure.
2Adaptability or versatility
If the third microphone is placed in a separate second housing, then it can be independently oriented, but complicated adjustment may be necessary due to different vibration transmission
Solution Approach 1:
By placing the third microphone in the same first housing as the other microphones, the patent ensures consistent vibration transmission characteristics across all microphones. This eliminates the need for complicated adjustments that would be required if the third microphone were in a separate housing with different vibration characteristics.
Solution Approach 2:
The patent allows the third microphone to be positioned at a specific location within the first housing that is optimized for its function (such as near the flash unit), while maintaining consistent vibration transmission properties by being part of the same housing structure.
3Device complexity
If the third microphone is integrated into the first housing with the first and second microphones, then the structure is simplified, but the microphones share the same housing space
Solution Approach 1:
The patent utilizes three-dimensional space within the first housing to accommodate all three microphones at laterally separated positions. By arranging the microphones in different spatial dimensions rather than requiring separate housings, the design simplifies the overall structure while providing adequate space for each microphone.
Data Source
AI summary
An image pickup apparatus is configured to record sound. The image pickup apparatus includes a housing unit, a first microphone and a second microphone configured to acquire stereophonic sound, and disposed at positions laterally separated from each other, and a third microphone separate from the first microphone and the second microphone. The housing unit includes a first storing unit and a second storing unit separated from each other. The first microphone is disposed in the first storing unit. The second microphone and the third microphone are disposed in the second storing unit.