Bluetooth OPP Stream Media Transmission for Real-Time Playback
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Solution Overview
Problem
Existing Bluetooth technologies require completion of multimedia file transmission before playback can commence, leading to increased waiting time for users.
Innovation Solution
Encoding multimedia files into stream media files at the transmitting terminal and transmitting them through the Object Push Profile (OPP), allowing real-time playback at the receiving terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If multimedia files are transmitted through Bluetooth using traditional file transfer methods, then the files can be reliably transmitted, but the playback must wait until transmission is complete, resulting in longer waiting time
Solution Approach 1:
The patent applies preliminary action by converting multimedia files into stream media format before transmission begins. The transmitting terminal encodes the entire file into a stream format (e.g., MP3, AAC, H.264) in advance, allowing the receiving terminal to start decoding and playing back the stream as it arrives during transmission, rather than waiting for complete file transfer. This preliminary conversion enables real-time playback while maintaining transmission reliability through proper stream protocol usage.
Solution Approach 2:
The patent implements dynamics by transitioning from a static file transfer model to a dynamic stream-based transmission model. Instead of transferring a complete static file and then playing it, the system dynamically converts the file into a continuous stream that can be processed, decoded, and played back in real-time as data arrives. This dynamic approach allows playback to begin during transmission and continue seamlessly as more data is received.
2Productivity
If multimedia files are converted to stream media format and transmitted in real-time, then playback can start immediately, but the system complexity increases due to encoding and streaming requirements
Solution Approach 1:
The patent applies universality by utilizing the existing Bluetooth Object Push Profile (OPP) infrastructure to carry stream media data. Rather than creating a completely new transmission protocol, the system uses the established OPP framework but enhances it with stream-based data format support. This allows the Bluetooth module to perform both traditional file transfer and real-time stream transmission using the same communication profile, reducing the need for separate complex systems while enabling immediate playback.
Data Source
AI summary
The disclosure discloses a method, an apparatus and a system for transmitting multimedia data by bluetooth and real-time playing, wherein the method includes: a bluetooth apparatus at a transmitting terminal encodes multimedia files to be transmitted, and converts them into stream media files; the bluetooth apparatus at the transmitting terminal transmits the stream media files to a bluetooth apparatus at a receiving terminal through an Object Push Profile (OPP); the bluetooth apparatus at the receiving terminal plays the received stream media files. It is because the bluetooth apparatus at the transmitting terminal transmits the stream media files through the OPP and the bluetooth apparatus at the receiving terminal receives and plays them, and then the waiting time for playing is reduced. It is solved the problem in the prior art that audio or video playing can be carried out only after the completion of the transmission by bluetooth and the waiting time is longer.