Camera Audio Recording With Microphone-Specific Fan Control
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Solution Overview
Problem
Heat radiation fans in image capturing apparatuses can generate noise that is picked up by microphones, leading to unwanted restrictions on recordable time and user experience when their rotation frequency is uniformly reduced.
Innovation Solution
An audio recording apparatus that adjusts the rotation frequency of heat radiation fans based on the type of microphone used to record audio, ensuring effective cooling while minimizing noise interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the rotation frequency of the heat radiation fan is uniformly reduced when a built-in microphone is used, then the operating noise is decreased, but the recordable time is reduced and the cooling function deteriorates
Solution Approach 1:
The patent applies local quality by differentiating the fan rotation control based on the specific microphone type being used. Instead of a uniform reduction, the system adjusts the rotation frequency locally according to each microphone's noise sensitivity characteristics, allowing optimal balance between noise reduction and cooling performance for each microphone type.
Solution Approach 2:
The system changes the rotation frequency parameter dynamically based on the detected microphone type. By identifying the microphone type and adjusting the fan's rotation speed accordingly, the system optimizes the balance between noise reduction and heat dissipation efficiency for each specific microphone configuration.
2Object-affected harmful factors
If the rotation frequency of the heat radiation fan is uniformly reduced, then the operating noise is decreased, but the cooling function deteriorates
Solution Approach 1:
The patent implements local quality by applying different rotation frequency reductions tailored to each microphone type's noise characteristics. This selective approach maintains adequate cooling performance while reducing noise only to the extent necessary for each specific microphone configuration.
Solution Approach 2:
The system uses feedback by detecting the microphone type and adjusting the fan rotation frequency accordingly. This closed-loop control ensures that the cooling function remains reliable while minimizing noise, as the rotation speed is continuously optimized based on the actual microphone being used.
3Object-affected harmful factors
If the rotation frequency of the heat radiation fan is reduced, then the operating noise is decreased, but the heat radiation performance deteriorates
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the fan rotation frequency based on the detected microphone type. This allows the system to optimize the balance between noise reduction and heat radiation performance, maintaining adequate cooling while minimizing noise for each specific microphone configuration.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures efficient cooling of heat-generating components while maintaining high-quality audio recording by optimizing fan rotation frequency according to the specific microphone type, thereby extending recordable time and improving user experience.
Implementation Method 1
heat radiation fans... installing heat radiation fans, heat conducting members such as heat sinks
Implementation Method 2
the operating noise of the heat radiation fan may be picked up by the microphone and recorded
Data Source
AI summary
An audio recording apparatus provided with a heat radiation fan comprises at least one processor and/or circuit configured to function as following units: an acquiring unit configured to acquire a type of microphone used to record audio; a control unit configured to control a rotation frequency for driving the heat radiation fan; and a recording unit configured to record audio acquired by the used microphone, wherein the control unit changes the rotation frequency of the heat radiation fan according to the type of the used microphone acquired by the acquiring unit.