USB OTG Interface Unit Resistance Detection for Configuration
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Solution Overview
Problem
Current USB On-The-Go devices experience latency and increased power consumption due to the reliance on software-based control units and high-speed clocks for managing configuration changes, which require cooperation among multiple entities and result in inefficient processing.
Innovation Solution
Implementing a method where the interface unit, composed primarily of hardware components, detects and processes changes in resistance values on a resistive line to adapt device configurations independently, eliminating the need for bi-directional communication with the control unit and reducing latency and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the control unit (software-based) processes configuration changes through bi-directional communication with the interface unit, then the system can maintain comprehensive control and coordination, but latency increases and power consumption increases
Solution Approach 1:
The patent extracts the configuration processing function from the control unit and relocates it to the interface unit. The interface unit independently detects resistance value changes and processes configuration adaptations without requiring control unit involvement, thereby eliminating communication latency while maintaining reliable configuration management
Solution Approach 2:
The interface unit is designed to self-process configuration changes by autonomously detecting resistance value variations and independently adapting its own configuration. This self-service capability eliminates the need for control unit intervention, reducing both latency and power consumption while ensuring reliable operation
2Reliability
If the control unit (software-based) processes configuration changes through bi-directional communication with the interface unit, then the system can maintain comprehensive control and coordination, but power consumption increases
Solution Approach 1:
The patent extracts the configuration processing function from the control unit and relocates it to the interface unit. This extraction eliminates the need for continuous high-speed clock operation and processor intervention, significantly reducing power consumption while maintaining reliable configuration management through hardware-based processing
Solution Approach 2:
The interface unit performs self-service by autonomously detecting and processing configuration changes without requiring control unit involvement. This independent operation eliminates the power consumption associated with software processing and high-speed clocking, while ensuring reliable configuration adaptation
3Reliability
If multiple entities cooperate to process configuration changes through software control, then the system can achieve comprehensive control, but processing efficiency decreases
Solution Approach 1:
The patent merges the detection and processing functions into a single integrated interface unit. By combining these functions in one hardware component, the system eliminates the need for multiple entities to cooperate through software communication, thereby improving processing efficiency while maintaining coordinated control through unified hardware operation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for faster response times and reduced power consumption by enabling the interface unit to instantly react to configuration changes, while being interoperable with existing USB On-The-Go devices.
Implementation Method 1
The resistance value allows the interface unit to identify a configuration for at least one second device adapted to be linked to the first device via the communication interface
Data Source
AI summary
The present invention generally relates to the management of a configuration of a first device. The first device includes a control unit and an interface unit managing a communication interface. The communication interface comprises at least one resistive line having a resistance value. The resistance value allows the interface unit to identify a configuration for at least one second device adapted to be linked to the first device via the communication interface. The interface unit: /a/ detects a change of the resistance value on the resistive line corresponding to a configuration of said second device; /b/ processes said change of the resistance value to adapt the configuration of the first device according to the configuration of said second device.