Wearable Terminal Frame Operation Detection
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Solution Overview
Problem
Wearable information terminals face challenges in user-friendly operation due to the need for separate optical systems for detecting fingertip direction and distance during handwriting and the non-intuitive placement of touch pads relative to displays, leading to poor operability.
Innovation Solution
A wearable information terminal design featuring a main body unit with a display device, a control device for display processing, and an operation detection unit positioned differently from the screen, utilizing contact detection units along the frame to facilitate input operations without obscuring the display, allowing for intuitive operation through frame tracing and pressure-sensitive sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the operation detection unit is disposed at the same position as the screen, then the user can directly touch the display for input, but the display is obscured by the user's finger and visibility is reduced
Solution Approach 1:
The wearable information terminal is divided into two distinct functional areas: the screen region for display and the operation detection unit (frame) for input. This segmentation allows the display and input operations to occur in separate spatial zones, eliminating the obstruction problem where fingers block the display during direct touch input.
2Adaptability or versatility
If a separate optical system is provided for detecting fingertip direction and distance, then handwriting detection is enabled, but the device structure becomes complex
Solution Approach 1:
The frame structure serves multiple functions simultaneously: it acts as the structural boundary of the device, provides the operation detection surface for various input methods (touch, handwriting, tracing), and integrates sensors for detecting finger position, pressure, and motion. This multi-functionality eliminates the need for separate dedicated optical systems for handwriting detection.
Solution Approach 2:
The patent combines multiple detection capabilities (touch position, pressure sensitivity, handwriting recognition, finger tracing) into a single integrated frame structure. By merging these functions into one unified operation detection unit, the device avoids the complexity of multiple separate optical and sensing systems.
3Device complexity
If the touch pad is disposed at the opposite position of the display across the wrist, then the device structure is simplified, but the input operation becomes non-intuitive
Solution Approach 1:
The operation detection is extended from a two-dimensional flat surface to the three-dimensional frame structure surrounding the screen. Users can trace and interact with the frame in various directions and dimensions, providing intuitive control while maintaining a compact device structure without requiring opposite-side placement of controls.
Data Source
AI summary
A wearable information terminal that can be worn by a user is provided with: a main body; a display that is incorporated in the main body and includes a screen; a controller that is incorporated in the main body and executes display processing onto the screen; and an operation detector that detects input operation executed by the user with respect to the controller.