Four-Dimensional Control Pad for Information Handling Systems
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Solution Overview
Problem
Existing information handling systems face challenges in efficiently performing demanding input and output tasks, such as gaming, due to limitations in user interaction quality and speed.
Innovation Solution
The system enhances user interactions by integrating advanced peripherals, including a keyboard with a four-dimensional control pad, a mouse with analog strain sensing, and a stylus with replaceable modules, along with head position tracking using ultrasonic speakers or a headset, to support rapid and precise inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional keyboard and mouse are used, then the system is simple and easy to manufacture, but the user interaction quality and speed are insufficient for demanding tasks
Solution Approach 1:
The control pad is segmented into multiple independent sensing zones (first control region, second control region, third control region) that can detect different input types simultaneously. This segmentation allows the device to handle complex gaming inputs by dividing the control surface into functional zones, improving interaction speed without requiring a complete redesign of the entire keyboard.
Solution Approach 2:
The control pad integrates multiple functions into a single device: it detects key presses, determines key press direction (swipe detection), and identifies pressed keys simultaneously. This multi-functionality allows the peripheral to handle various input scenarios without requiring separate devices, improving productivity while managing complexity through consolidation.
2Measurement precision
If advanced peripherals with multiple sensing capabilities are integrated, then user interaction quality improves, but device complexity increases
Solution Approach 1:
The patent combines multiple sensing capabilities (capacitive sensing, strain sensing, flex sensing) into a single integrated control pad structure. The first, second, and third control regions are merged into one component that can simultaneously detect different types of inputs, improving measurement precision while reducing the overall complexity compared to using separate sensors for each function.
Solution Approach 2:
The system utilizes changes in electrical parameters (capacitance, resistance, voltage) to detect different input types. By monitoring parameter changes in the sensing zones rather than using separate physical sensors for each input type, the system achieves high precision input detection with reduced hardware complexity.
3Manufacturing precision
If multiple sensing zones and input types are integrated in the control pad, then control precision improves, but manufacturing complexity increases
Solution Approach 1:
The control pad utilizes flexible printed circuit board (FPC) technology with thin film conductive layers to create multiple sensing zones. This approach allows precise control input detection through patterned conductive traces on flexible substrates, achieving manufacturing precision while maintaining ease of manufacture through established flexible circuit board fabrication processes.
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
This approach significantly improves the quality and speed of user interactions, enabling more precise control and faster response times during demanding tasks like gaming, while also reducing power consumption and enhancing mobility.
Implementation Method 1
The multifunctional sensor has two vertically stacked capacitors in a dual capacitor structure that can detect the type and strength of external stimuli including curvature, pressure, strain and touch with clear distinction.
Data Source
AI summary
A keyboard control pad couples to a keyboard housing upper surface to accept touch, pressure and strain inputs to report to an information handling system. The control pad has a polydimethylsiloxane (PDMS) film with integrated silver electrodes that form upper and lower layers of capacitor electrodes. The film is suspended between first and second opposing frame handles that slide towards and away from each other to fold and strain the film as a fourth dimension input.