Multicore Processor Clock Phasing for Lower Radiation Noise
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Solution Overview
Problem
Multicore processors generate high-intensity radiation noise and fluctuating power consumption due to constant core frequencies, leading to increased costs and inefficiencies, especially in systems with multiple cores.
Innovation Solution
Implementing a multicore processor architecture where each core operates with a frequency that varies sinusoidally with a central frequency and a phase shift among cores, preventing noise superposition and stabilizing power consumption by shifting the phase of frequency variation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple cores operate at constant high frequency to increase processing capacity, then productivity is improved, but radiation noise intensity increases
Solution Approach 1:
The patent applies periodic action by making each core's operating frequency vary periodically over time rather than remaining constant. The frequency of each core oscillates around a central frequency, creating a time-varying operation pattern that prevents continuous high-frequency noise generation while maintaining average processing capacity.
Solution Approach 2:
The patent applies asymmetry by introducing different phase shifts for each core's frequency variation. Instead of all cores varying frequency in unison, each core has a unique phase offset, creating asymmetric frequency trajectories that prevent noise superposition and reduce overall radiation noise intensity.
2Stability of the object's composition
If multiple cores operate at constant frequency, then processing stability is improved, but power consumption fluctuates significantly
Solution Approach 1:
The patent uses periodic frequency variation to smooth power consumption. By oscillating frequencies periodically and using phase shifts, the power demand of individual cores varies in a coordinated manner that prevents simultaneous peaks, thereby stabilizing total power consumption over time.
Solution Approach 2:
The patent converts the potentially harmful effect of frequency variation (which could reduce processing stability) into a benefit. The periodic frequency changes with phase shifts actually improve power consumption stability by preventing simultaneous high-power demands, while processing stability is maintained through careful design of the frequency variation parameters.
3Object-generated harmful factors
If core operating frequency is changed in time sequence to reduce noise, then radiation noise is reduced, but processing capability varies
Solution Approach 1:
The patent applies parameter changes by varying the operating frequency parameter of each core over time. The frequency is changed periodically around a central value, and this dynamic parameter adjustment reduces noise while the average processing capability is maintained through appropriate selection of the central frequency and variation amplitude.
Data Source
AI summary
A multicore processor according to the invention has a plurality of cores. The plurality of cores are configured to operate at an operation clock with a frequency varying periodically with the same period, and a variation phase of a frequency of the operation clock of each core of the plurality of cores is shifted by a predetermined amount among the plurality of cores.