Handwriting Input Offset Display to Unblock Sight Line

The patent applies dimensionality change by offsetting the display position from the touch point position in a specific direction (e.g., upward or along the stroke trajectory). This creates a spatial separation between the physical touch medium and the visual feedback, allowing users to see the complete stroke without the finger blocking the view. The display point is calculated based on the touch point coordinates plus an offset vector that considers stroke direction and curvature.

The patent introduces an intermediary mechanism by rendering the stroke at a displaced position rather than directly at the touch point. This intermediary display location acts as a mediator between the user's touch action and the visual feedback, eliminating the direct conflict where the finger would block the stroke. The offset rendering serves as a buffer that decouples the physical interaction from the visual representation.

The patent resolves this contradiction by moving the display to another dimension (offset position) rather than keeping it at the original touch point. This spatial relocation maintains operational simplicity while solving the visibility problem. The system automatically calculates and applies the offset without requiring complex user interactions or manual adjustments.

The patent creates a copy of the stroke at a different location (the offset position) rather than displaying it directly at the touch point. This copied representation provides the necessary visual feedback without interfering with the user's view. The original touch interaction remains simple while the copied stroke provides unobstructed visual information.