Directional Clickable Trackball for Handheld Navigation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional navigation input devices, such as mice and trackballs, face limitations in precision and spatial footprint, especially in small handheld devices, where they often require additional buttons and keys, leading to clutter and reduced usability.
Innovation Solution
A multi-function navigation device that incorporates a rotatable and directionally depressible spherical member, such as a trackball, with a directional positioning mechanism and switches, allowing for two or four-way directional movement and clicking, integrated into a device housing to enhance cursor control and reduce the need for separate buttons and keys.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional navigation input devices (mouse, trackball) are used, then cursor control functionality is provided, but the device requires additional buttons and keys leading to excessive spatial footprint and clutter
Solution Approach 1:
The patent combines multiple navigation functions (rotation for cursor movement, directional depression for clicking and navigation) into a single spherical member. The spherical member integrates the functions of a traditional mouse/trackball for cursor control with directional buttons for clicking and navigation, eliminating the need for separate buttons and keys, thus reducing spatial footprint while maintaining ease of operation
Solution Approach 2:
The spherical member is designed to perform multiple functions: rotational movement for cursor control, directional depression for clicking, and directional movement for navigation. This multi-functional design allows a single component to replace multiple traditional navigation elements, reducing the overall space required for navigation input devices
2Adaptability or versatility
If additional buttons and keys are added to navigation devices, then more commands can be input, but device clutter increases and usability decreases
Solution Approach 1:
Multiple command input functions are merged into the spherical member through directional positioning mechanisms and switches. The spherical member can be depressed in different directions (e.g., upward, downward, leftward, rightward) to input different commands, combining the functions of multiple buttons into a single ergonomic component that maintains ease of operation
Solution Approach 2:
The spherical member serves as a universal input device that can execute multiple commands through different depression directions. This multi-functional design provides adaptability for various navigation commands while maintaining a clean, clutter-free interface that enhances usability
3Volume of moving object
If navigation devices are made smaller for handheld use, then portability improves, but navigational precision and control are reduced
Solution Approach 1:
The patent integrates all navigation control functions into a compact spherical member that can be operated with thumb movements. By combining cursor control rotation and directional clicking/navigation in one component, the design achieves small form factor suitable for handheld devices while maintaining navigational precision through well-defined rotational and directional input mechanisms
Data Source
Figure 1~2B
Figure 3A~3F
Figure 4
AI summary
A multi-function navigation device in the form of a trackball that is both rotationally actuable and multi-directionally clickable. The multi-function navigation device can receive user commands by rotational movement and various directional clicking of the trackball. Directional depression of the multi-function navigation device activates switches corresponding to predetermined directions to effectuate directional selections or directional movements of a cursor for navigating the display of an electronic device.