USB-C Cable Autonomous Startup and Power Optimization

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Solution Overview

Problem

The existing USB-C connection lines face slow startup speeds due to the need for data transfer with an external micro-controller chip for RX Detect, which also leads to unnecessary power consumption in monitoring mode.

Innovation Solution

A USB-C connection line with a receiver detector, signal detectors, and a controller that detects receiver and input signals to execute a startup procedure independently, eliminating the need for external micro-controller chip intervention, thereby speeding up the startup process and reducing power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the USB-C connection line uses an external micro-controller chip for RX Detect function, then the connection line can determine connection states and module polling requirements, but the startup speed becomes slow

Engineering Contradiction:
Improveconnection state determinationVSAvoidstartup speed
Core Design Contradiction:
ReliabilityVSSpeed

Solution Approach 1:

The patent extracts the RX Detect function from the external micro-controller chip and integrates it directly into the USB-C connection line controller. This extraction eliminates the need for data transfer with an external micro-controller during startup, thereby resolving the contradiction by maintaining reliable connection state determination while significantly improving startup speed.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent merges the RX Detect function with the USB-C connection line controller by integrating the receiver detector module. This merging allows the controller to directly detect receiver signals and determine connection states without external intervention, thus achieving both reliable connection determination and fast startup performance.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If the micro-controller is always in monitoring mode to detect connection states, then the connection line can respond to connection changes, but power consumption increases

Engineering Contradiction:
Improveconnection state detectionVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements periodic action by having the receiver detector activate only when needed for connection state determination during startup or connection events, rather than maintaining continuous monitoring. This allows the system to reliably detect connection states while consuming power only when necessary, resolving the contradiction between detection reliability and power consumption.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The USB-C connection line performs self-service by integrating the receiver detector within its own controller, enabling it to autonomously detect connection states and determine module polling requirements without relying on an external micro-controller in continuous monitoring mode. This self-sufficiency reduces power consumption while maintaining reliable detection capability.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11416439B2USB-C connection line and USB-C connection line signal judgement method thereof
Publication Date: 2022.08.16 LERAIN TECH CO LTD
  • US11416439B2 patent drawing
  • US11416439B2 patent drawing
  • US11416439B2 patent drawing

AI summary

A USB-C connection line and a USB-C connection line signal judgement method thereof are disclosed. The USB-C connection line can be connected between a first electronic device and a second electronic device. The USB-C connection line includes a receiver detector, a first signal detector, a second signal detector, and a controller. The receiver detector is used to detect whether a receiver signal is received; the receiver signal means that the first electronic device or the second electronic device is connected to a first port or a second port. The first signal detector and the second signal detector are used to detect whether an input signal is transmitted from the first electronic device or the second electronic device. The controller is used to determine whether any one of the input signal or the receiver signal is received so as to execute a startup procedure.