Electronic Pen Stroke Layout Correction Beyond Screen Boundaries
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Solution Overview
Problem
Electronic devices fail to display strokes made using an electronic pen when they extend beyond the displayable area, resulting in missed strokes that are not visible on the device's screen.
Innovation Solution
The method involves detecting missing strokes, obtaining missing stroke data, and adjusting the display layout to incorporate these strokes by generating a virtual display area, using sensors like accelerometers and gyroscopes, and relocating or resizing strokes to ensure complete display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the displayable area is kept within standard device boundaries, then the device maintains normal display functionality, but strokes made outside the display area are lost and not displayed
Solution Approach 1:
The patent extends the displayable area beyond the physical device boundaries by projecting it onto a surface in another dimension (the surface on which the device rests). This allows strokes made outside the traditional display area to be captured and displayed by mapping them to this extended virtual area, thus preventing information loss without expanding the physical device.
2Loss of information
If the displayable area is extended to capture strokes outside the device, then complete stroke visibility is achieved, but the device structure and display system become more complex
Solution Approach 1:
The patent introduces a surface detection module that acts as an intermediary between the display module and the external surface. This module detects the surface characteristics and enables the displayable area to be projected onto it, serving as a mediator that extends the display functionality without requiring complex structural modifications to the device itself.
Solution Approach 2:
The patent creates a virtual copy of the displayable area on the external surface by detecting surface properties and projecting the display area onto it. This virtual copy allows strokes made on the extended area to be captured and displayed, effectively replicating the display functionality beyond physical boundaries without adding physical complexity.
3Measurement precision
If sensors like accelerometers and gyroscopes are used to detect missing strokes, then stroke detection accuracy improves, but energy consumption and device complexity increase
Solution Approach 1:
The patent activates the missing stroke detection mode only when a stroke is detected to be incomplete or cut off at the display boundary. This preliminary detection triggers the use of sensors like accelerometers and gyroscopes only when necessary, rather than continuously, thus maintaining high detection accuracy while minimizing energy consumption by activating sensors on-demand.
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
Ensures that all strokes, including those outside the displayable area, are accurately displayed by adjusting the layout to accommodate missing strokes, enhancing user interaction and visibility.
Implementation Method 1
The electronic device may detect a magnetic field generated by an electronic pen by using an electromagnetic induction method. The electronic device may identify a location of the electronic pen based on an induced electromotive force produced by the magnetic field on a channel-by-channel basis.
Implementation Method 2
obtaining the missing stroke data based on information from at least one of an accelerometer and a gyroscope of the electronic pen until at least one of an acceleration and coordinates of the electronic pen does not exceed a threshold value
Implementation Method 3
obtaining the missing stroke data based on information from at least one of an accelerometer and a gyroscope of the electronic pen until at least one of an acceleration and coordinates of the electronic pen does not exceed a threshold value
Data Source
AI summary
A method for displaying, on an electronic device, strokes of an electronic pen, includes receiving stroke data associated with a stroke of the electronic pen; detecting a missing stroke that extends beyond a displayable area of the electronic device; obtaining missing stroke data associated with the missing stroke; adjusting a layout of the displayable area based on the missing stroke data; and displaying the missing stroke in the displayable area according to the adjusted layout.