Magnetic Scroll Wheel Switching Between Haptic and Freespin Modes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing mouse scroll wheels with mechanical encoders and feedback mechanisms are noisy and lack high-speed scrolling capability, making them inefficient and bulky.
Innovation Solution
A wired or wireless mouse with a magnetic scroll wheel device that uses a mouse microcontroller and PMU to operate a haptic feedback mechanism via magnetic interaction, and an EPM switch to seamlessly switch between haptic feedback and freespin scrolling modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If mechanical encoders and feedback mechanisms are used in scroll wheels, then haptic feedback is provided, but the device becomes noisy and bulky
Solution Approach 1:
The patent replaces the traditional mechanical encoder and feedback mechanism with a magnetic field-based detection system. A magnet is embedded in the scroll wheel, and its rotation is detected by a magnetic sensor (such as a Hall effect sensor or magnetoresistive sensor), eliminating the need for mechanical contact and thereby reducing noise while maintaining detection accuracy.
Solution Approach 2:
The patent introduces a magnet as an intermediary element between the scroll wheel and the detection system. The magnet's rotation creates changes in the magnetic field that are detected by the sensor, providing a non-contact method for detecting scroll wheel rotation and eliminating the need for direct mechanical feedback mechanisms.
2Ease of operation
If mechanical encoders are used in scroll wheels, then scrolling control is provided, but high-speed scrolling capability is limited
Solution Approach 1:
The patent replaces the mechanical encoder with a magnetic field-based detection system that has no moving parts. This allows the scroll wheel to rotate at higher speeds without the mechanical limitations and wear associated with traditional encoders, enabling high-speed scrolling capability while maintaining precise control.
3Ease of operation
If haptic feedback mechanism is continuously engaged, then user interaction is enhanced, but power consumption increases
Solution Approach 1:
The patent implements a dynamic switching mechanism that allows the system to transition between two operational modes: a magnetic detection mode for normal scrolling operations, and a haptic feedback mode for enhanced user interaction. The controller activates the haptic feedback mechanism only when needed, rather than keeping it continuously engaged, thereby reducing overall power consumption while maintaining enhanced user interaction when required.
Solution Approach 2:
The patent employs periodic or on-demand activation of the haptic feedback mechanism rather than continuous operation. The controller selectively engages the haptic feedback based on detected scroll wheel rotation events or user interaction patterns, providing enhanced user interaction only when necessary and minimizing power consumption during normal scrolling operations.
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
The solution provides a quiet and efficient scrolling experience, allowing for high-speed freespin scrolling while maintaining haptic feedback at lower speeds, thus enhancing user interaction with minimal power consumption.
Implementation Method 1
uses a mouse microcontroller and PMU to operate a haptic feedback mechanism via magnetic interaction
Implementation Method 2
an EPM switch to seamlessly switch between haptic feedback and freespin scrolling modes
Data Source
AI summary
A mouse having a mouse magnetic scroll wheel device operatively couplable to an information handling system comprising a mouse microcontroller, a mouse power management unit, and an encoder where the mouse magnetic scroll wheel device includes a scroll wheel with a scroll wheel outer surface, an axle, and a hollowed out core portion of a scroll wheel structure and the axle is operatively coupled to the encoder to record scrolling input from a user. A cradle to receive the scroll wheel such that the scroll wheel is rotatable in the cradle. The scroll wheel has a scroll wheel metal gear and a scroll wheel permanent magnet disposed in the hollowed out core portion where magnetic interaction of the teeth of the scroll wheel metal gear and the permanent magnet as the scroll wheel rotates generates a magnetic haptic feedback for the scroll wheel.