USB SSIC Thin Card Device Power Adaptation

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Solution Overview

Problem

Current USB 3.0 devices do not meet the low power consumption requirements of mobile devices, limiting their integration into mobile device markets.

Innovation Solution

A USB SSIC thin card device with a USB 3.0 compliant physical layer circuit and differential signal pins, along with an interface specification detection unit that selects the appropriate USB physical layer circuit based on power voltage for efficient data transmission, ensuring compatibility with USB 3.0, USB 2.0, and USB 3.0 SSIC transmission specifications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If USB 3.0 devices are used in mobile devices, then high-speed data transmission is achieved, but power consumption increases beyond mobile device requirements

Engineering Contradiction:

Improvedata transmission speedVSAvoidpower consumption

Core Design Contradiction:

SpeedVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic switching between USB 3.0 and USB 2.0 modes based on power voltage detection. When sufficient power is available, the system operates in USB 3.0 mode for high-speed transmission; when power is limited, it automatically switches to USB 2.0 mode to conserve energy, making the system adaptable to varying power conditions in mobile devices

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes operational parameters by detecting power voltage levels and adjusting the USB transmission mode accordingly. This parameter-based adaptation allows the device to optimize between speed and power consumption based on real-time power availability, resolving the contradiction between high-speed transmission and low power consumption requirements

Inventive Principle:

Principle #35Parameter changes

2Speed

If USB 3.0 physical layer circuit is added to achieve high-speed transmission, then data transmission capability is improved, but device complexity increases

Engineering Contradiction:

Improvedata transmission speedVSAvoidcircuit complexity

Core Design Contradiction:

SpeedVSDevice complexity

Solution Approach 1:

The patent merges USB 3.0 and USB 2.0 physical layer circuits into a single integrated structure. The USB 3.0 circuit includes differential signal lines for both USB 3.0 and USB 2.0 operations, allowing the same hardware infrastructure to support multiple transmission modes, thereby reducing overall device complexity while maintaining high-speed capability

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The USB 3.0 physical layer circuit is designed to perform multiple functions by supporting both USB 3.0 high-speed mode and USB 2.0 legacy mode through the same differential signal lines. This multi-functional design eliminates the need for separate dedicated circuits for each mode, reducing device complexity while preserving high-speed transmission capability

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS9379497B2USB SSIC thin card device and data transfer method thereof

Publication Date: 2016.06.28 IND TECH RES INST

AI summary

A USB SSIC thin card device and a data transfer method thereof are provided. A first universal serial bus (USB) physical layer circuit is controlled by a USB device control unit to transmit data through a pair of first differential signal pins and a pair of a second differential signal pins, wherein the first USB physical layer circuit is used to transmit data complied with a USB 3.0 SSIC transmission specification.