Dynamic Data Scrambling for Link Synchronization and Power
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Solution Overview
Problem
Communication links face issues with data drifting and synchronization loss due to extended periods without transitions, leading to potential data errors, and varying power dissipation requirements across different applications, which are not efficiently managed by existing scrambling techniques.
Innovation Solution
A communication system with a logic unit that dynamically scrambles and unscrambles data, using a control register and feedback shift register to limit scrambling, and employs out-of-band signals or counters to control scrambling rates, allowing for reduced power consumption and improved performance by adjusting transition density dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data scrambling is applied to ensure sufficient transition density, then synchronization reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic scrambling control where the scrambling operation is enabled or disabled based on real-time detection of transition density in the data stream. The system monitors the data for extended periods without transitions and dynamically activates scrambling only when needed to maintain synchronization, rather than applying it continuously. This dynamic approach ensures synchronization reliability while minimizing unnecessary power consumption during periods when scrambling is not required.
2Reliability
If complex scramble patterns with increased number of bits are generated to minimize statistical probability of inverse pattern, then synchronization reliability is improved, but device complexity increases
Solution Approach 1:
The patent changes the parameter of scramble pattern length dynamically based on the detected data characteristics. Instead of using a fixed complex pattern, the system adjusts the pattern length and complexity according to the actual transition density requirements. When data shows sufficient transitions, simpler or shorter patterns are used; when transitions are scarce, more complex patterns are activated. This parameter adaptation maintains synchronization reliability while reducing average device complexity.
3Reliability
If scrambling is applied to all data to ensure transition density, then data transmission reliability is improved, but power dissipation increases
Solution Approach 1:
The patent applies partial scrambling rather than scrambling all data continuously. The system selectively applies scrambling operations only to portions of the data stream that exhibit insufficient transition density, detected through monitoring for extended periods without transitions. This partial action approach maintains data transmission reliability for problematic segments while avoiding the power dissipation costs of scrambling already-sufficient data segments.
Data Source
AI summary
A communications system that may include a transmitter, a receiver, connected over a communications network. A communication link on the communications network may transfer data between the transmitter and the receiver. The system may also include a logic unit to scramble a plurality of portions of the data at the transmitter based upon the communication link and may unscramble the plurality of portions of the data at the receiver. As a result, the logic unit may provide improved performance of the communication link and/or reduced power consumption of the communication link.