Pen Input Position Adjustment for Easier Object Selection
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Solution Overview
Problem
Existing information processing apparatuses using electronic pens face difficulties in operability, particularly for novice users, due to the need for precise contact positioning and separate operations like hovering and pressure control, making tasks like drag operations challenging.
Innovation Solution
An information processing apparatus with a touch sensor unit and pen input adjustment unit that adjusts the pen position within a peripheral allowable range around the object on the screen, allowing for simplified click operations and drag operations without requiring hovering or pressure control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electronic pen performs both positioning and object determination with a single contact operation, then the operation process is simplified, but the positioning precision deteriorates because it is difficult to maintain exact vertical and horizontal positions of the pen tip
Solution Approach 1:
The invention divides the screen into multiple detection regions (first detection region and second detection region) with different functions. The first detection region is for positioning where the pen can be contacted without triggering object selection, while the second detection region is for object determination where contact triggers object selection. This segmentation allows users to easily position the pen in the first region without worrying about precise alignment, while still enabling accurate object selection when the pen contacts the second region.
2Measurement precision
If the electronic pen separates positioning operation and object determination operation by hovering, then positioning precision is improved, but the device complexity increases due to additional operation steps and button pressing requirements
Solution Approach 1:
The invention merges the hovering function and button pressing function into a single contact operation. When the pen contacts the second detection region, both positioning and object determination are completed in one action, eliminating the need for separate hovering and button pressing steps. This reduces the operation steps from multiple actions (hover + press button) to a single action (contact), while maintaining positioning precision through the regional detection mechanism.
3Measurement precision
If the electronic pen uses writing pressure threshold to determine object selection, then object determination accuracy is improved, but the ease of operation deteriorates because controlling pressure is difficult for novice users
Solution Approach 1:
The invention replaces the complex pressure control mechanism with a simple contact/non-contact distinction. Instead of requiring users to control writing pressure within a threshold range, the system only needs to detect whether the pen is contacting the screen or hovering above it. This simplifies the operation to a binary state (contact vs. no contact), making it much easier for novice users while maintaining object determination accuracy through the detection region framework.
4Measurement precision
If the electronic pen requires precise contact positioning for drag operations, then object selection accuracy is improved, but the ease of operation deteriorates because it is difficult to perform high-accuracy drag operations
Solution Approach 1:
The invention segments the detection regions to facilitate drag operations. The first detection region allows for easy positioning and initiation of drag operations without requiring precise contact, while the second detection region enables accurate object selection. This segmentation allows users to start drag operations from the first region and maintain them through the second region, combining ease of operation with accuracy.
Data Source
AI summary
An information processing apparatus includes: a display unit; a touch sensor unit arranged on a screen of the display unit and capable of detecting at least a position of a pen that comes into contact with the screen; a pen input processing unit that outputs pen input information based on the position of the pen detected by the touch sensor unit to an OS; and a pen input adjustment unit that adjusts the position of the pen to the position of the object and outputs the position to the pen input processing unit when the touch sensor unit detects the contact of the pen at a position within the peripheral allowable range set around the object on the screen.