Coordinated Syndrome Matching for Memory Read Error Validation
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Solution Overview
Problem
Existing memory systems struggle to reliably detect and correct errors, particularly when multiple bit errors occur, leading to potential data corruption and reduced system reliability.
Innovation Solution
Implement coordinated syndrome matching procedures at both the memory device and host device to enhance error detection capabilities, allowing the host device to validate or discard data based on combined results from both devices, thereby increasing data transfer reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual error correction circuits are used at memory device or host device, then device complexity is reduced, but error detection capability is insufficient for multiple bit errors
Solution Approach 1:
The patent combines error correction capabilities at both the memory device and host device, creating a coordinated error protection system. The memory device performs first error correction on read data and generates first syndrome bits, while the host device performs second error correction and generates second syndrome bits. This merging of error correction functions at multiple levels enables detection of multiple bit errors that would be missed by individual error correction circuits alone.
2Reliability
If coordinated syndrome matching is implemented at both memory device and host device, then error detection reliability is improved, but system complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the memory device performs syndrome matching on first syndrome bits and generates first error indication information, which is then used by the host device. The host device performs syndrome matching on second syndrome bits and generates second error indication information. This feedback loop of error indication information between memory device and host device enables coordinated error detection and improves data transfer reliability while managing system complexity through structured information exchange.
Data Source
AI summary
Methods, systems, and devices for coordinated error protection are described. A set of data and an indication of whether a first management procedure performed by a memory device on the set of data detected one or more errors in the set of data may be received at a host device. At the host device, a second error management procedure may be performed on the set of data received from the memory device. Based on the received indication and the second error management procedure, multiple bits indicating whether one or more errors associated with the set of data were detected at the memory device, the host device, or both may be generated. The set of data may be validated or discarded based on the multiple bits.