SSIC Device Active Link Control for Power Saving
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Solution Overview
Problem
General SSIC devices are unable to actively enter power-saving U3 mode without host intervention, leading to unnecessary power consumption when disconnected from compatible objects or unable to identify them.
Innovation Solution
An SSIC device with a detecting circuit, control circuit, and M-PHY circuit that actively disconnects or reconnects with the host based on detection results, allowing for de-link and re-link states to manage connections and conserve power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the SSIC device remains connected to the host in normal mode, then the device can quickly resume transmission when needed, but the device consumes excessive power when no compatible objects are present or identifiable
Solution Approach 1:
The patent implements dynamic connection state management by enabling the SSIC device to actively transition between connected and disconnected states based on detection results. The device can dynamically enter a disconnected state when no compatible objects are detected, and actively reconnect when objects become available, optimizing power consumption while maintaining operational readiness.
Solution Approach 2:
The patent enables the SSIC device to autonomously manage its connection state with the host without requiring host intervention. The device independently detects compatible objects, determines connection status, and actively controls connection/disconnection operations, allowing it to self-regulate power consumption based on actual operational needs.
2Use of energy by moving object
If the SSIC device actively disconnects from the host, then power consumption is reduced, but the device cannot quickly resume normal operation when compatible objects become available
Solution Approach 1:
The patent implements a feedback mechanism where the SSIC device continuously detects the presence and state of compatible objects, and based on this feedback, actively controls its connection state with the host. The device monitors object detection results and adjusts connection status accordingly, ensuring reliable operation while optimizing power consumption through informed connection management.
3Device complexity
If the SSIC device waits for host control to enter U3 mode, then connection management is simple, but the device cannot actively reduce power consumption when no objects are present
Solution Approach 1:
The patent enables the SSIC device to autonomously manage its connection state with the host without requiring host intervention. The device independently detects compatible objects, determines connection status, and actively controls connection/disconnection operations, allowing it to self-regulate power consumption based on actual operational needs.
Data Source
AI summary
An SSIC (SuperSpeed Inter-Chip) device comprises a detecting circuit operable to execute at least one of a first and a second detection processes and generate a detection result, wherein the first detection process is operable to detect an SSIC compatible object and the second detection process is operable to detect whether the SSIC compatible object satisfies at least one of a de-link state and a re-link state, a control circuit operable to generate a control signal according to the detection result, and a Mobile-Physical-Layer circuit operable to execute at least one of the following steps: if the control signal indicates that the SSIC compatible object is detected and satisfies the de-link state, disconnecting a normal connection between the SSIC device and the SSIC host; and if the control signal indicates that the SSIC compatible object is detected and satisfies the re-link state, connecting the SSIC device with the SSIC host.