Dual-Stream Video Recording for Instant Web Sharing
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Solution Overview
Problem
Conventional audio video recording devices require data editing and PC-based conversion to post video content on video-sharing websites, making them unsuitable for real-time sharing due to limitations in recording time and data size, and the inability to extract only necessary files.
Innovation Solution
An audio video recording device with high and low-quality coding units, storage, and communication capabilities, allowing for seamless recording and transmission of video data in formats suitable for video-sharing websites without the need for editing, enabling discretionary start and suspension of low-quality recording, and automatic triggering based on audio or image detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If video data is recorded with high image quality, then image quality is improved, but data size increases and recording time is limited
Solution Approach 1:
The video recording function is segmented into two parallel coding paths: high-quality coding for preserving image quality and low-quality coding for reducing data size. Both coding units process the same input video signal simultaneously, producing separate output streams that can be stored in different storage units or selectively transmitted.
Solution Approach 2:
Different quality levels are applied to different portions of the video data based on requirements. The system can selectively output high-quality data for archiving and low-quality data for immediate transmission or sharing, allowing local optimization of quality vs. size trade-offs.
2Loss of information
If all recorded files are converted for website posting, then complete video data is preserved, but recording time is wasted and data size is excessive
Solution Approach 1:
The system extracts only the necessary video data for website posting by using low-quality coding to generate a condensed version of the video. This extracted low-quality data can be directly uploaded without requiring conversion of the entire high-quality recording, saving both time and data transmission resources.
Solution Approach 2:
Low-quality coding is performed in parallel with high-quality recording, preparing the website-ready data in advance during the recording process itself. This preliminary preparation eliminates the need for post-recording conversion and allows immediate upload when needed.
3Quantity of substance
If low-quality recording is performed continuously, then data size is reduced, but image quality deteriorates
Solution Approach 1:
The system merges high-quality coding and low-quality coding into a unified dual-coding architecture that processes the same input signal through both paths simultaneously. This allows the user to access both high-quality and low-quality versions of the same video content, combining the benefits of both approaches.
4Adaptability or versatility
If PC-based conversion is required for website posting, then data format compatibility is ensured, but operation complexity increases
Solution Approach 1:
The video recording device performs the conversion and formatting operations itself through its built-in low-quality coding unit and communication unit. The device automatically prepares website-compatible video data during recording and can directly transmit it to websites, eliminating the need for external PC conversion and simplifying the user operation to just recording and uploading.
Data Source
AI summary
The present invention provides an audio video recording device which can easily post video contents on a video-sharing website without editing the video data to be posted. The audio video data recording device for recording audio and video data includes: a camera unit to which a captured moving image is inputted; a high-quality coding unit for compressing the moving image captured by the camera unit with a high image quality; a high-quality data storage unit for recording therein data of the compressed moving image outputted from the high-quality coding unit; a low-quality coding controller for starting or suspending a low-quality recording process during the high-quality recording process; a low-quality coding unit for compressing the moving image captured by the camera unit with a low image quality in accordance with an instruction by the low-quality coding controller; a low-quality data storage unit for recording therein data of the compressed moving image outputted from the low-quality coding unit; and a communication unit for transferring the moving image data recorded in the low-quality data storage unit to a different apparatus.