Multiplexer Idle Mode Noise Reduction via Patterned Signals
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Solution Overview
Problem
Existing data transfer techniques over data links face issues with idle agents causing voltage noise due to aggressive power budgets, leading to performance degradation and increased power consumption, particularly due to high switching activity during idle modes.
Innovation Solution
Implementing a multiplexer-based system that transmits a patterned data signal during idle modes to maintain minimal switching activity, and alternately transmitting data and inverted data signals based on clock cycle thresholds to ensure consistent noise levels and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If idle mode is implemented for agents that have no data to transmit, then data transfer efficiency is improved, but voltage noise increases due to high switching activity
Solution Approach 1:
The patent implements periodic action by transmitting patterned data signals at regular intervals during idle periods. The transmitter alternates between transmitting actual data and patterned data signals, where the patterned signals are transmitted periodically to maintain switching activity at a controlled level. This periodic transmission of patterned signals prevents voltage noise from increasing while still maintaining efficient data transfer during active periods.
Solution Approach 2:
The patent applies parameter changes by modifying the data signal characteristics during idle modes. Instead of complete silence or random switching, the system changes the signal parameter to transmit patterned data signals with controlled switching activity. This parameter modification allows the system to maintain minimal but beneficial switching activity that prevents voltage noise while consuming minimal power during idle periods.
2Object-generated harmful factors
If patterned data signals are transmitted during idle modes, then voltage noise is reduced, but switching activity increases
Solution Approach 1:
The patent implements partial action by transmitting patterned data signals only during idle periods when no actual data needs to be transmitted. The patterned signals provide just enough switching activity to control voltage noise without excessive transmission that would waste energy during active data transfer periods. This partial application of signal transmission during idle modes optimizes the balance between noise reduction and energy consumption.
3Use of energy by stationary object
If agents idle completely without data transmission, then power consumption is reduced, but performance degrades due to extended idle periods
Solution Approach 1:
The patent maintains continuity of useful action by transmitting patterned data signals during idle periods. These patterned signals, while not carrying actual data, maintain the operational state of the transmitter and receiver, ensuring that the system remains ready for immediate data transfer when needed. This continuous minimal activity prevents performance degradation from extended idle periods while consuming minimal power compared to full data transmission.
Data Source
AI summary
Method and apparatus for transferring a data signal including receiving a digital data signal by a first input of a multiplexer of a transmitter operably coupled to a data link; transmitting, by a digital data signal output of the multiplexer, the digital data signal to a receiver that is operably coupled to the data link; receiving, by a selection signal input of the multiplexer, a first selection signal that indicates an idle mode for the transmitter; receiving, by a second input of the multiplexer, a patterned data signal; and transmitting, by the digital data signal output and in response to the first selection signal, the patterned data signal to the receiver.