Electronic Device Bezel Rotation Control for Wet Conditions

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Solution Overview

Problem

Smart wearable devices, such as smart watches, become inoperable when exposed to water, making it difficult to perform complex operations using touch screens or buttons alone.

Innovation Solution

An electronic device with a rotation member, sensors, and a processor that detects rotation position and information to enable control through bezel rotation, allowing users to interact with the device even when the screen is wet or inaccessible.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If touch screen and buttons are used for device control, then the device can be operated in normal conditions, but the device becomes inoperable when the screen is wet or immersed in water

Engineering Contradiction:
Improvedevice operability in wet conditionsVSAvoidcontrol convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent introduces a rotation member (bezel) as an intermediary control mechanism between the user and the device functions. This mechanical rotation interface allows users to navigate menus and control the device without touching the wet screen, while the processor interprets rotation signals to execute corresponding operations, thus bridging the gap between user intent and device response in wet conditions

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the electrical touch screen interface with a mechanical rotation-based control system. The rotation member mechanically rotates to generate detection signals that the processor interprets, substituting the failed electrical touch interface with a reliable mechanical interaction method that functions independently of water exposure

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

2Ease of operation

If the processor continuously detects rotation position and information, then control responsiveness is improved, but power consumption increases

Engineering Contradiction:
Improvecontrol responsivenessVSAvoidprocessor power consumption
Core Design Contradiction:
Ease of operationVSUse of energy by moving object

Solution Approach 1:

The patent implements periodic detection where the processor activates sensors and processes rotation information only when rotation events are detected, rather than continuously monitoring. The system enters low-power states between detection events, periodically awakening to check for rotation input, thus maintaining control responsiveness while significantly reducing overall power consumption during idle periods

Inventive Principle:
Principle #19Periodic action

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

Enhances convenience in device control by allowing users to navigate menus and execute functions using the bezel, reducing power consumption and improving usability in wet conditions.

Implementation Method 1

the first sensor is a magnetic sensor... the rotation member is provided with a magnetic component

Methodology Applied
Scientific EffectMagnetic field sensing: Hall Effect

Implementation Method 2

the second sensor is an optical tracking sensor

Methodology Applied
Scientific EffectOptical tracking: Reflection

Data Source

PatentUS20240402656A1Electronic device and control method for electronic device
Publication Date: 2024.12.05 GEER TECH CO LTD
  • US20240402656A1 patent drawing
  • US20240402656A1 patent drawing
  • US20240402656A1 patent drawing

AI summary

An electronic device, comprising: a housing; a rotation member rotatably connected to the housing; a first sensor used for detecting a rotation position of the rotation member; a second sensor used for detecting rotation information of the rotation member, wherein the rotation information comprises any one of rotation direction, rotation angle and rotation speed, or any combination thereof; and a processor respectively connected to the first sensor and the second sensor and used for performing corresponding operations according to the rotation position and/or rotation information. According to the present application, when it is inconvenient for a user to use a screen or buttons to control the electronic device, the rotation member can be used to realize control; and the convenience of device control can be improved. Further disclosed is a control method for an electronic device.