Dual Channel Encoding for Reliable Auxiliary Data Transmission
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Solution Overview
Problem
Current methods for encoding and decoding auxiliary data within video and audio channels of a content signal are inefficient, as they lack a systematic approach to identify and utilize frames for dual channel encoding and decoding, leading to incomplete or inaccurate data reproduction.
Innovation Solution
The proposed solution involves encoding auxiliary data in both audio and video channels using specific encoding techniques, identifying suitable frames through test data encoding, and employing a modular system for dual channel encoding and decoding, which includes modules for frame selection, encoding, and decoding to reproduce the auxiliary data effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If auxiliary data is encoded in both audio and video channels using dual channel encoding, then the reliability and completeness of data transmission is improved, but the device complexity and processing requirements increase
Solution Approach 1:
The patent divides the encoding system into separate audio channel encoder and video channel encoder modules, each handling auxiliary data encoding independently. The system segments the content signal into audio and video portions, applies different encoding techniques to each channel, and then combines them. This segmentation allows the system to achieve reliable dual-channel data transmission while managing complexity through modular design, where each encoder can be optimized independently.
2Manufacturing precision
If frames are systematically identified and tested for encoding capability, then the manufacturing precision of the encoding process is improved, but the loss of time for frame analysis increases
Solution Approach 1:
The patent implements preliminary frame analysis and testing before actual auxiliary data encoding. Test data is first encoded into the content signal to identify which frames are suitable for encoding in each channel. This preliminary action ensures that only appropriate frames are selected for encoding, improving the precision of the encoding process while establishing a systematic framework that can be efficiently reused for actual data transmission.
3Measurement precision
If test data is encoded to identify suitable frames, then the measurement precision of frame suitability is improved, but the productivity of the encoding process decreases
Solution Approach 1:
The patent applies partial action by encoding test data in only a subset of frames rather than all frames. The system identifies audio-enabled frames and video-enabled frames through selective testing, ensuring that test data is inserted only where it can be successfully decoded. This approach achieves sufficient measurement precision for frame suitability while minimizing the impact on overall encoding productivity by avoiding unnecessary testing in all frames.
Data Source
AI summary
Methods and systems for dual channel encoding and detection are described. In one embodiment, auxiliary data may be encoded in an audio portion of one or more frames of a content signal based on an audio encoding technique. The auxiliary data may be encoded in a video portion of the one or more frames based on a video encoding technique. The encoding of the auxiliary data in the audio portion and the video portion may produce a modulated content signal. The modulated content signal may include one or more dual encoded frames. The dual encoded frames may include the auxiliary data encoded within the audio portion and the video portion of the one or more frames. Additional methods and systems are disclosed.