Multi-modal Input Device for Precision Cursor Control
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Solution Overview
Problem
Current Optical Navigation Modules (ONMs) in portable electronic devices face difficulties in precision and efficiency for tasks like cursor movement and scrolling through long documents or maps, requiring numerous swipes or gestures.
Innovation Solution
A multi-modal user input device that combines finger movement and pressure sensing, allowing for directional navigation and discrete or incremental movements based on pressure and gesture analysis, enabling more precise control over user interface elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current Optical Navigation Modules (ONMs) are used for cursor movement and scrolling, then the device structure remains simple, but the precision and efficiency of navigation tasks deteriorate, requiring numerous swipes or gestures
Solution Approach 1:
The patent combines two distinct input modalities (finger movement sensing and pressure sensing) into a single integrated navigation device. The finger movement sensor detects lateral finger motions for cursor control, while the pressure sensor detects pressing actions for selection and confirmation, allowing precise cursor movement and efficient task completion without requiring numerous separate gestures
Solution Approach 2:
The navigation device serves multiple functions within a single component: it acts as both a cursor position controller (through finger movement detection) and a selection mechanism (through pressure detection). This multi-functionality eliminates the need for separate buttons or controls, improving both precision and navigation efficiency
2Ease of operation
If multiple swipes or gestures are performed to move cursor across pages or maps, then the device structure remains simple, but the time consumption and user effort increase significantly
Solution Approach 1:
By merging finger movement detection with pressure sensing in one device, the system enables users to perform both navigation and selection actions without switching between different input methods or performing multiple separate gestures, reducing both time consumption and user effort
Solution Approach 2:
The device maintains continuous tracking of finger position and pressure throughout the interaction, allowing smooth cursor movement and immediate response to pressing actions without requiring discrete, repeated gestures. This continuous action reduces the time and effort needed for navigation tasks
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 user control and precision by automatically switching between finger movement and directional navigation modes, allowing for refined movements and efficient navigation through data, such as moving a cursor across text or maps with fewer gestures.
Implementation Method 1
an optical sensor, an electromagnetic sensor
Implementation Method 2
a pressure sensor that detects a vertical finger pressure
Implementation Method 3
an optical sensor, an electromagnetic sensor
Data Source
AI summary
A user input device, a portable electronic device including the user input device, and an operating method therefor, manages multiple modes of the user input device based on detected force and direction of tilt. The user input device includes a base member with top surface. A sensor touchpad module is disposed above the top surface of the base member. A plurality of pressure sensors is disposed between the base member and the sensor touchpad module. A processor manages a set of user input modes based on whether at least one of a first set of signals associated with a first user input mode and a second set of signals associated with a second user input mode has been detected.