UWB Audio Capture Control for Distant Subject Video Recording
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Solution Overview
Problem
Existing smartphones struggle with improper sound capture of distant subjects, noise interference, and inability to selectively track and record multiple audio sources due to chipset limitations, leading to inconsistent audio volume and multi-recording issues during video capturing.
Innovation Solution
An electronic device utilizing ultra-wide band (UWB) communication to identify and acquire audio signals from nearby or distant subjects, with advanced signal processing to adjust volume and display audio levels, enabling selective recording and multi-recording through UWB communication with external devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the distance to the subject is increased, then the coverage area is improved, but the audio signal quality deteriorates
Solution Approach 1:
The patent introduces an external device as an intermediary to capture audio signals from distant subjects. The electronic device communicates with this external device via UWB to obtain audio data that would otherwise be too weak to capture directly, thereby extending coverage while maintaining audio quality.
Solution Approach 2:
The system enables multi-recording functionality by allowing the electronic device to simultaneously record audio from multiple sources - both its own microphone and external devices - creating a universal recording solution that works for both close and distant subjects.
2Adaptability or versatility
If multiple microphones are added to capture multiple subjects, then the audio coverage is improved, but the device complexity increases
Solution Approach 1:
Instead of adding multiple microphones to the electronic device, the patent uses external devices as intermediaries to capture audio from different subjects. This approach achieves multi-subject audio coverage without increasing the complexity of the electronic device's own hardware.
Solution Approach 2:
The patent replaces the mechanical approach of adding multiple physical microphones with a communication-based system using UWB to exchange audio data with external devices, thereby achieving the same functional result with less hardware complexity.
3Length of stationary object
If the microphone sensitivity is increased to capture distant sounds, then the audio range is improved, but the surrounding noise interference increases
Solution Approach 1:
The external device acts as an intermediary positioned near the subject to capture audio signals. This allows the electronic device to obtain clear audio from distant subjects without needing to increase its own microphone sensitivity, thereby avoiding the pickup of surrounding noise.
Solution Approach 2:
The system applies local quality by having the external device capture audio in close proximity to the subject where the signal is strong and clear, while the electronic device remains at a distance where it would otherwise pick up noise, thus achieving both extended range and noise rejection.
4Ease of operation
If real-time audio level display is added, then the user control capability is improved, but the device complexity increases
Solution Approach 1:
The patent implements feedback by displaying the audio signal level in real-time on the screen, allowing users to see the magnitude of captured audio and adjust recording parameters accordingly. This enhances user control while the processing is managed through efficient algorithms.
Data Source
AI summary
Disclosed are an electronic device and a control method. The electronic device comprises a communication interface for communicating with an external apparatus in a UWB manner, a microphone, a camera, a sensor, a display, and a processor, wherein the processor obtains distance information and angle information with respect to the external apparatus, on the basis of data received from the external apparatus, obtains photographing direction information, on the basis of a detected direction of the camera, identifies the external apparatus, on the basis of the acquired photographing direction information, distance information, and angle information, controls the microphone or communication interface to acquire an audio signal, on the basis of a distance from the external apparatus, and controls the display to display a UI indicating the amplitude of the acquired audio signal, together with a displayed image.