Spatial Virtual Keyboard Determination Region Control
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Solution Overview
Problem
Current control apparatuses for accepting user inputs through virtual keyboards in a spatial manner lack efficiency in determining the correct character information based on user gestures, leading to difficulties in intuitive and accurate character input operations.
Innovation Solution
A control apparatus that includes a coordinate reception unit, a setting unit, a determination unit, and a display output unit to set and manage determination regions associated with character information groups, allowing users to select characters by moving their fingertips in three-dimensional space without physical contact with the display, enabling precise character input based on spatial coordinates and gestures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If virtual keys are arranged in a spatial keyboard structure, then character input can be performed without physical contact with the display, but the accuracy of determining the correct character information based on user gestures deteriorates
Solution Approach 1:
The patent divides the spatial keyboard into multiple determination regions, each associated with specific character information groups. This segmentation allows the system to accurately determine which character information should be displayed based on the user's gesture location in space, resolving the contradiction between contactless operation and determination accuracy.
Solution Approach 2:
The patent pre-establishes the correspondence relationships between determination regions and character information groups before the user performs input operations. This preliminary configuration enables accurate character determination based on spatial coordinates without requiring complex real-time analysis of user gestures.
2Quantity of substance
If the display surface size is increased, then more character information can be displayed, but the usability and intuitiveness of the virtual keyboard deteriorates
Solution Approach 1:
The patent transitions from a two-dimensional display-based keyboard to a three-dimensional spatial keyboard. By utilizing the depth dimension (distance from the display surface), the system can accommodate more character information groups in the spatial arrangement, effectively increasing capacity without proportionally increasing the display surface area, thus maintaining usability.
Data Source
AI summary
In a control apparatus, a coordinate reception unit receives spatial coordinates of a detection object located in front of a display surface of a display. A setting unit sets a first determination region associated with first character information included in a first character information group based on coordinates of a first display region in which information on the first character information group is displayed on the display surface and spatial coordinates of the detection object at a reference time that is a time when the first display region is designated by the detection object. After the first determination region is set, a determination unit determines whether or not the detection object is located in the first determination region. A display output unit displays the first character information in the first display region when the determination unit determines that the detection object is located in the first determination region.