3D Position Indicator With Grip-Exposed Tracker for Gesture Switching

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Solution Overview

Problem

Existing rendering systems face difficulties in smoothly transitioning between hover and gesture event detection modes, requiring operators to maintain a limited spatial region and making detailed operations challenging, especially for 3D rendering, and necessitate device tilt changes for mode switching.

Innovation Solution

A three-dimensional position indicator and detection system that allows position indication on a position detecting sensor in a three-dimensional space, using a tracker to detect positions independently of the sensor's positional relation, enabling fine rendering and gesture operations without spatial limitations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If switching between hover event detection mode and gesture event detection mode is carried out in a limited spatial region, then the touch controller can detect both position indication and gesture operations, but the operator needs to make gesture while keeping the hover state within a limited spatial region, making it difficult to carry out work for 3D rendering

Engineering Contradiction:
Improvedetection mode switching capabilityVSAvoidspatial region limitation
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent transitions from two-dimensional touch sensor detection to three-dimensional spatial detection by introducing a motion sensor that detects device orientation and position in 3D space. This allows gesture operations to be performed anywhere within the detection range, not confined to a limited hover region above the touch sensor surface.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If operation input is assumed to be performed with fingers, then the touch controller can detect gesture operations, but it becomes difficult to carry out more detailed indication operations

Engineering Contradiction:
Improvegesture detection capabilityVSAvoidindication operation precision
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent creates a unified input system that accommodates multiple input methods (finger gestures on touch sensor, pen-style indication, and motion-based gestures) through a single motion sensor and controller. This allows the system to automatically adapt to different input devices and modes, maintaining both gesture detection capability and fine indication precision.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If switching between hover event detection mode and gesture event detection mode is carried out in response to a signal from the motion sensor, then the system can detect device tilt for mode switching, but the device tilt needs to be changed for the switching each time

Engineering Contradiction:
Improvemotion-based mode switchingVSAvoiddevice tilt requirement
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent implements dynamic mode switching where the controller automatically transitions between hover detection mode and gesture detection mode based on real-time motion sensor data. The system detects device orientation changes and accelerations to determine user intent, enabling seamless mode transitions without requiring manual device tilting or complex user actions.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12399580B2Three-dimensional position indicator and three-dimensional position detection system including grip part and tracker
Publication Date: 2025.08.26 WACOM CO LTD
  • US12399580B2 patent drawing
  • US12399580B2 patent drawing
  • US12399580B2 patent drawing

AI summary

A position indicator indicates a position in a three-dimensional (3D) space. The position indicator includes an elongated casing; a position indicating part which is disposed at one end of the elongated casing and which, in operation, indicates the position; a grip part configured to be gripped with a palm of a user in a state in which the elongated casing is gripped between fingers of the user; and a tracker which, in operation, causes an external device to detect a tracker position of the tracker in the 3D space, wherein the tracker is disposed so as to be not covered by the user's hand when the user palm-grips the grip part. The tracker position of the tracker and a position of the position indicating part are in a specific positional relation.