Wireless Microphone Timestamping for Cross-Device Audio-Image Matching
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Solution Overview
Problem
Existing technologies do not effectively associate audio files recorded by wireless microphones with image files recorded by image capture apparatuses, as they assume both files are recorded in the same device.
Innovation Solution
A wireless microphone system that communicates with an image capture apparatus, generating and transmitting audio data for a moving image file, recording it as an audio file, and adding time stamp information based on received time information from the image capture apparatus, allowing simultaneous transmission and recording.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If audio files and image files are recorded in different apparatuses, then recording flexibility and device specialization are improved, but file association and synchronization become difficult
Solution Approach 1:
The patent introduces time stamp information as an intermediary element that bridges audio files recorded by wireless microphones and image files recorded by image capture apparatus. The control unit generates time stamps based on time information from the image capture apparatus and embeds them in audio files, enabling association without requiring the files to be recorded in the same device.
Solution Approach 2:
The system establishes a feedback loop where the wireless microphone receives time information from the image capture apparatus and uses it to generate corresponding time stamp information. This feedback mechanism ensures that audio files can be accurately associated with image files through synchronized time markers, resolving the file association problem across different devices.
2Productivity
If audio data is transmitted and recorded simultaneously, then recording efficiency and synchronization accuracy are improved, but system complexity and processing load increase
Solution Approach 1:
The patent merges the audio data transmission and recording operations into a simultaneous process. The transmission unit sends audio data to the image capture apparatus while the recording unit records it as an audio file at the same time, both coordinated by the control unit using the same time information. This consolidation improves recording efficiency while the control unit manages the complexity through centralized time stamp generation.
Data Source
AI summary
A wireless microphone capable of communicating with an image capture apparatus, generates audio data, transmits, as audio data for a moving image file generated by the image capture apparatus, the audio data to the image capture apparatus, records the audio data as an audio file, and receives information including time information from the image capture apparatus, and adds, to the audio file, time stamp information generated based on the time information received from the image capture apparatus, transmission of the audio data to the image capture apparatus and recording of the audio data by the recording unit are executed simultaneously.