Multi-Channel Digital Watermarking Payload Capacity
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Solution Overview
Problem
Conventional techniques for embedding data, such as watermarks, into digital content are limited to a single channel, restricting the payload capacity and efficiency of embedded data transmission.
Innovation Solution
The method employs multiple channels in digital content streams to embed code, allowing different or redundant data portions across channels, with flexible placement and referencing between channels for enhanced payload and low-bandwidth transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If watermarks are embedded in a single channel, then the embedding process is simple, but the payload capacity is limited
Solution Approach 1:
The patent divides the embedding process into multiple segments across different channels. Each channel can carry a portion of the watermark data, and the segments are distributed across time and space in the multi-channel stream, allowing the total payload capacity to exceed what a single channel could accommodate.
Solution Approach 2:
The patent transitions from single-channel embedding to multi-channel embedding, adding the dimension of channel multiplicity. By utilizing multiple channels simultaneously, the system increases the embedding capacity without proportionally increasing complexity, as the additional channels are already present in the digital content infrastructure.
2Reliability
If watermarks are embedded in multiple channels, then the payload capacity increases, but the embedding process becomes more complex
Solution Approach 1:
The patent merges the watermark embedding process with the existing multi-channel content transmission infrastructure. By combining the watermark data with the content streams across multiple channels, the system achieves higher reliability through redundancy while avoiding separate complex embedding processes.
Solution Approach 2:
The patent makes the multi-channel content stream serve dual purposes: carrying both the original content and the embedded watermark data. This universal approach allows the same transmission infrastructure to handle both functions, reducing the need for separate dedicated embedding mechanisms and thereby reducing overall system complexity.
3Reliability
If the same data is embedded in all channels, then the reliability increases through redundancy, but the data transmission efficiency decreases
Solution Approach 1:
The patent applies different embedding strategies to different channels based on their specific characteristics and requirements. Each channel can carry different portions of the watermark data or different levels of redundancy, allowing the system to optimize both reliability and efficiency by tailoring the embedding to local channel conditions rather than applying uniform redundancy across all channels.
Data Source
AI summary
A multi-channel embedded data technique allows for embedding data, such as watermarks into multiple channels of audio, video, multi-media, and other digitized content streams. Two or more of the channels may be utilized. The embedded data may be segmented within each channel, and these segments may start and stop at identical times, or may be staggered or offset from one another. The available payload may be used for different data, or redundant data, providing enhanced reliability. Staggering allows for more rapid availability of at least some of the embedded data segments. References may be used between channels and between data streams to provide for highly complex configurations of encoding and decoding of the embedded data.