Packet Identifier Field for Multi-Channel Audio Transmission
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Solution Overview
Problem
Current data transmission standards for multi-channel audio signals, particularly those with 9 or more channels, face challenges in efficiently transmitting high-quality audio signals across various wired interfaces like HDMI and MHL, as existing formats are not adequately designed to handle such channel counts.
Innovation Solution
A data transreceiving system and method that generates and transmits packets with an identifier field to distinguish packet position, including 3D audio and multi-stream audio features, using Extended Display Identification Data (EDID) blocks and packetization processes to support transmission of audio signals with 9 or more channels, configured according to IEC 60958 format.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing audio transmission formats are used, then compatibility with current standards is maintained, but the ability to transmit 9 or more audio channels is limited
Solution Approach 1:
The audio data stream is segmented into multiple packets, each carrying a portion of the multi-channel audio data. The identifier field within each packet enables the receiver to properly reassemble the segmented data in the correct order, allowing transmission of 9 or more channels while maintaining manageable packet structures
Solution Approach 2:
The packet structure embeds multiple layers of information including identifier fields, audio data portions, and formatting information within a standardized container format. This nested structure allows complex multi-channel audio data to be organized within a framework compatible with existing transmission standards
2Measurement precision
If packet identifier fields are added to distinguish packet positions, then packet ordering and reconstruction accuracy is improved, but data transmission overhead increases
Solution Approach 1:
The identifier field is implemented with variable precision - using only as many bits as necessary to distinguish the specific packet position within the audio data stream. This local optimization ensures sufficient identification accuracy without uniformly adding excessive overhead to all packets
Data Source
AI summary
A data transmitting apparatus includes a packet generator which generates a plurality of packets regarding multi-channel audio sample data and transmitter which transmits the plurality of generated packets to a data receiving apparatus. Each of the plurality of packets includes an identifier field to distinguish a position or an order of the packets.