Interlink Noise Interference Handling via Dynamic Mode Switching

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Solution Overview

Problem

Computing systems with interlinks connecting hardware devices are susceptible to noise interference during clock and data recovery cycles, leading to potential communication disruptions and user experience issues, such as loss of touch and stylus input.

Innovation Solution

Implementing a method to detect noise interference scenarios on interlinks and switching them to a persistent active mode to reduce susceptibility to interference, followed by resetting to an intermittently active mode after reboot for power savings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If the interlink operates in intermittently active mode to save power, then power consumption is reduced, but the interlink becomes susceptible to noise interference during clock and data recovery cycles

Engineering Contradiction:

Improvepower consumptionVSAvoidcommunication stability

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The interlink dynamically switches between intermittently active mode and persistent active mode based on operational conditions. During normal operation, it operates in intermittently active mode to save power. When noise interference is detected during clock and data recovery cycles, it transitions to persistent active mode to ensure stable communication, thus adapting to different operational states

Inventive Principle:

Principle #15Dynamics

2Reliability

If the interlink switches to persistent active mode to reduce noise interference susceptibility, then communication stability is improved, but power consumption increases

Engineering Contradiction:

Improvecommunication stabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system periodically monitors for noise interference conditions during clock and data recovery cycles. Instead of maintaining persistent active mode continuously, it only activates this mode when noise interference is detected, using periodic detection to trigger the appropriate operational state, thus balancing power consumption with communication stability

Inventive Principle:

Principle #19Periodic action

3Use of energy by moving object

If the interlink remains in intermittently active mode to save power, then power consumption is reduced, but user experience deteriorates due to loss of touch and stylus input

Engineering Contradiction:

Improvepower consumptionVSAvoiduser experience

Core Design Contradiction:

Use of energy by moving objectVSEase of operation

Solution Approach 1:

The system implements feedback mechanisms to detect noise interference conditions that would otherwise cause communication disruptions. By monitoring the interlink status and detecting noise during clock and data recovery cycles, the system can proactively switch to persistent active mode before user experience degradation occurs, thus maintaining operational reliability while managing power consumption

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS11762506B2Handling noise interference on an interlink

Publication Date: 2023.09.19 MICROSOFT TECHNOLOGY LICENSING LLC

AI summary

Examples are disclosed that relate to handling noise interference on an interlink connecting hardware devices. One example provides a computing system comprising a first hardware device, a second hardware device, an interlink connecting the first hardware device and the second hardware device, a logic system, and a storage system. The storage system comprises instructions executable by the logic system to operate the interlink in an intermittently active mode, detect a noise interference scenario on the interlink, and in response, set a persistent active mode for the interlink.