USB Connector Orientation Detection for Port Selection

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Solution Overview

Problem

Existing USB connector systems lack efficient orientation detection and port selection mechanisms, leading to compatibility issues between devices with single and dual USB ports, particularly when connectors are rotated or twisted, which affects communication and data transfer.

Innovation Solution

Implementing orientation detection circuitry in USB devices to determine the orientation of connectors using communication control pins and sending this information to select the appropriate port for communication, enabling devices with single ports to communicate effectively with dual-port hosts by automatically swapping ports based on detected orientations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If USB connector systems use standard physical connectors without orientation detection, then device compatibility is maintained, but communication fails when connectors are rotated or twisted

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidconnector orientation adaptability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system performs preliminary orientation detection through communication control pins before establishing data transfer. The host device detects connector orientation and communicates this information to the connected device, allowing both devices to select appropriate ports in advance, preventing communication failures due to rotation or twisting

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback by continuously monitoring communication control pins to detect changes in connector orientation. When rotation or twisting is detected, the system provides feedback signals to switch between different ports, ensuring reliable communication regardless of connector position

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If devices implement multiple USB ports to increase versatility, then adaptability improves, but device complexity and port selection difficulty increase

Engineering Contradiction:
Improvemulti-port compatibilityVSAvoidport selection complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system enables automatic port selection by having devices self-determine the optimal port based on detected connector orientation. The host device automatically selects which port to use for data transfer without requiring user intervention, reducing complexity while maintaining multi-port versatility

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The communication control pins serve multiple functions: they provide both communication between devices and orientation detection. This multi-functionality reduces the need for separate orientation detection circuitry, simplifying the overall system while enabling adaptability across multiple ports

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If USB connectors allow free rotation without detection, then ease of connection is maintained, but data transfer compatibility deteriorates

Engineering Contradiction:
Improveconnector connection easeVSAvoiddata transfer compatibility
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system replaces mechanical orientation indicators with electrical detection through communication control pins. Instead of requiring mechanical alignment features that restrict connector rotation, the system uses electrical signals to detect orientation and automatically adapt, maintaining ease of connection while ensuring data transfer compatibility

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS9612991B2Connector interface pin mapping
Publication Date: 2017.04.04 NOKIA TECHNOLOGIES OY
  • US9612991B2 patent drawing
  • US9612991B2 patent drawing
  • US9612991B2 patent drawing

AI summary

Methods and apparatus, including computer program products, are provided for connector interface mapping. In one aspect there is provided a method. The method may include detecting, at a first device, an orientation of a data connector connectable to a data interface, the data interface having a first portion and a second portion, the first portion coupled to a single port of a first type at the first device; sending, by the first device, the detected orientation information to a second device; and receiving, at the first device including the single port, data sent by the second device to the single port. Related apparatus, systems, methods, and articles are also described.