Handheld Input Device with Multi-Axis Paddles for Ergonomic Control
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Solution Overview
Problem
Current human-computer interaction methods require separate devices for input and control, such as keyboards and pointing devices, which limit ergonomic adaptability and mobility due to the need for hand repositioning and a horizontal surface, and often restrict finger and thumb movement.
Innovation Solution
A hand-held device with paddles that allow multiple axes of movement, enabling precise control without gripping, with keys under fingers and thumbs for typing and pointing, and sensors for mode selection and cursor control, allowing seamless transition between pointing and typing modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single-axis movement system is used for the grips, then the device structure is simplified, but the ergonomic adaptability in typing mode and effectiveness in pointing mode are limited
Solution Approach 1:
The patent transitions from a single-axis movement system to a dual-axis movement system for the grips. The first axis allows the grips to move laterally across the keyboard, while the second axis allows vertical movement for pointing. This dimensional expansion enables the device to adapt to different typing positions and pointing directions simultaneously, resolving the contradiction between adaptability and complexity by adding only one more degree of freedom.
Solution Approach 2:
The patent implements dynamic movement capabilities where the grips can be actively positioned and adjusted during use. The movement detection system continuously monitors the grip positions and translates them into cursor movement or key activation accordingly. This dynamic adaptability allows the same physical device to serve multiple functions (typing and pointing) with different movement patterns, enhancing versatility without requiring multiple separate devices.
2Ease of operation
If the device requires gripping to free fingers for typing, then the structure is simplified, but finger and thumb freedom of movement is restricted
Solution Approach 1:
The patent extracts the gripping function from the typing function. Instead of using a single gripping mechanism that must be released to type, the device separates these functions: the grips can be held in position while fingers remain free to press keys. This extraction allows the gripping and typing operations to occur simultaneously without interference, improving finger freedom while adding minimal structural complexity through independent control mechanisms.
Solution Approach 2:
The device is segmented into functionally independent components: the grips for positioning, the keys for typing, and the movement detection system for tracking. This segmentation allows each component to operate independently - the grips can be held firmly while fingers freely press keys, and the system tracks both grip positions and key presses separately. This modular approach enables simultaneous gripping and typing without compromising either function.
3Productivity
If separate keyboard and pointing device are used, then each device function is optimized, but hand repositioning is required slowing down interaction
Solution Approach 1:
The patent merges the keyboard and pointing device into a single integrated unit. The same device that contains the keyboard for typing also incorporates the movement-sensitive grips for cursor control. This consolidation eliminates the need to switch between separate devices or reposition hands between devices, as both typing and pointing functions are available simultaneously on one device, thereby increasing interaction speed.
Solution Approach 2:
The device is designed with universal functionality to perform both typing and pointing operations. The movement detection system can identify whether the user intends to type (by detecting key presses) or point (by detecting grip movement), and respond accordingly. This multi-functionality allows a single device to replace multiple specialized devices, eliminating hand repositioning requirements and improving overall interaction efficiency.
4Adaptability or versatility
If devices require a horizontal surface to rest upon, then structural stability is improved, but mobility and adaptability in various positions are limited
Solution Approach 1:
The patent replaces the mechanical dependency on a horizontal surface with an electronic movement detection system. Instead of relying on gravity and surface contact to stabilize the device, the system uses sensors to detect grip position changes and translate them into cursor movement or input signals. This substitution eliminates the need for a horizontal surface while maintaining operational stability through active sensing and feedback control.
Data Source
AI summary
A method and apparatus are provided for user input to a computer. The apparatus consists of movable paddles with multiple axes of motion. The paddles are shaped to include means for holding the device while keeping a user's fingers and thumbs free to activate touch sensitive areas on the paddles. Both the positions of the paddles and the location of touches are used to determine the input codes sent to the computer.