Decoder Power Management Using Preliminary Syndrome Calculation
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Solution Overview
Problem
Existing power management systems in electronic devices are inefficient due to the use of decoders tailored to different objectives without adjusting power consumption accordingly, leading to unnecessary power consumption and heat generation.
Innovation Solution
Implementing a power adjustment scheme based on preliminary syndrome calculations to dynamically adjust voltage and clock frequency for decoders tailored to different objectives, using preliminary syndrome calculation circuitry to determine the appropriate decoder and power settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If decoders tailored to different objectives are used without adjusting power consumption, then decoding performance is maintained, but power consumption increases and heat generation occurs
Solution Approach 1:
The patent implements dynamic power management by adjusting voltage and clock frequency of decoders based on real-time syndrome calculation results. The system transitions from static power consumption to dynamic adaptation, selecting appropriate decoder configurations (e.g., high-performance vs. low-power modes) based on the actual error conditions detected in the data stream.
Solution Approach 2:
The system changes operational parameters (voltage level, clock frequency) of decoders based on syndrome weight thresholds. When syndrome calculations indicate low error probability, the system reduces decoder power parameters; when errors are detected, full-performance decoder modes are activated, thereby optimizing the trade-off between decoding reliability and power consumption.
2Reliability
If standard syndrome calculation is performed before decoder selection, then accurate decoder selection is achieved, but latency increases
Solution Approach 1:
The patent performs preliminary syndrome calculations on a subset or simplified version of the data before full decoding is required. This preliminary action provides early information about error conditions, enabling proactive decoder selection and power management decisions before the complete decoding process begins, thus reducing overall latency while maintaining selection accuracy.
Solution Approach 2:
The syndrome calculation process is segmented into multiple stages: initial quick assessment using partial syndrome calculations, followed by more detailed analysis only if needed. This segmentation allows the system to make rapid decoder selection decisions for most cases while reserving comprehensive syndrome calculation for edge cases requiring higher accuracy.
Data Source
AI summary
One or more syndromes can be preliminarily calculated utilizing at least a portion of a codeword and a portion of parity-check matrix can be calculated. These preliminarily calculated syndromes can be utilized for power adjustment associated with decoding the codeword at decoders that calculate syndromes utilizing the parity-check matrix.