Encoder Metadata Transfer Using Unassigned Codes
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Solution Overview
Problem
Existing memory systems that only use binary modulation schemes face inefficiencies in communicating data and metadata, leading to redundant transmissions and suboptimal use of communication resources, especially when errors occur, as they require separate communication of data and metadata.
Innovation Solution
Implementing a binary to ternary lossless encoder that utilizes unassigned codewords for metadata transmission, allowing both data and metadata to be encoded and transmitted using a single encoder, thereby reducing the overall communication bandwidth required.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If binary modulation scheme is used for data transmission, then communication compatibility is maintained, but communication efficiency deteriorates due to separate transmission of data and metadata
Solution Approach 1:
The patent merges data and metadata into a single codeword structure. The encoder combines the data portion and metadata portion into one unified codeword that is transmitted over the channel, eliminating the need for separate transmissions. This is achieved by mapping both data and metadata to positions within the same codeword array, thereby improving communication efficiency while maintaining protocol simplicity.
Solution Approach 2:
The encoder is designed to perform multiple functions: it encodes both data and metadata simultaneously, generates syndromes for error detection, and handles both valid and invalid data scenarios within a single unified process. This multi-functional approach allows the same encoding mechanism to handle various transmission scenarios without requiring separate specialized protocols.
2Reliability
If separate communication channels are used for data and metadata, then reliability is improved through error detection, but bandwidth utilization deteriorates due to redundant transmissions
Solution Approach 1:
The patent combines data and metadata into a single codeword transmission unit. The encoder maps both the data portion and metadata portion into one codeword that is transmitted over the channel, eliminating the need for separate transmissions. This merging approach maintains error detection capability through the metadata while significantly reducing the total quantity of transmitted symbols.
Solution Approach 2:
The patent transitions from separate dimensional transmission (data channel and metadata channel) to a unified dimensional structure where both data and metadata coexist within the same codeword dimension. This allows the system to maintain reliability through metadata while optimizing bandwidth utilization by eliminating redundant transmission dimensions.
3Productivity
If unassigned codewords are utilized for metadata, then communication efficiency is improved, but encoder complexity increases due to mapping requirements
Solution Approach 1:
The encoder divides the codeword structure into distinct segments: a data portion and a metadata portion. This segmentation allows for systematic mapping where data bits are assigned to specific positions and metadata bits are assigned to other positions within the same codeword. The segmentation approach simplifies the mapping process compared to a fully integrated approach, as each segment can be handled independently through dedicated mapping logic.
Data Source
AI summary
Methods, systems, and devices for metadata transfer using unassigned codes of an encoder are described. The method may include inputting data and metadata associated with the data into an encoder. The data may include a first set of codewords modulated using a first modulation scheme including symbols that each represent one bit of digital information. Further, the method may include generating, using the encoder, a first subset of a second set of codewords representative of the data and a second subset of the second set of codewords representative of the metadata. The second set of codewords may be modulated using a second modulation scheme including symbols that each represent more than one bit of digital information. Further, the method may include transmitting the data and the metadata using the second set of codewords.