Stylus Pairing via Proximity Sensor ID to Prevent Wrong Connections
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Solution Overview
Problem
Existing position detecting systems face challenges in accurately pairing a position indicator with a position detecting apparatus, especially in environments where multiple indicators are close together, leading to unintended connections and complex manual identification processes.
Innovation Solution
A method involving the sharing of predetermined information between a position indicator and a position detecting apparatus when they are proximate, using proximity sensors and communication devices to establish a pairing connection based on shared information, allowing for simple and express pairing through actions like tapping the apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pairing request transmission is used in environments with multiple position indicators close together, then pairing connection can be established, but unintended connections between wrong pairs may occur
Solution Approach 1:
The patent introduces a display unit as an intermediary component that visually presents pairing request information to the user. This mediator allows users to identify and select the correct pairing target among multiple indicators, preventing unintended connections while maintaining the automatic pairing mechanism.
Solution Approach 2:
The system implements feedback by displaying pairing request information (such as indicator identifiers or status) on the display unit. This feedback loop enables users to verify which indicator is requesting pairing and make informed selection, thereby ensuring connection accuracy in multi-indicator environments.
2Reliability
If manual specification of pairing target is implemented, then accurate pairing can be achieved, but manipulation complexity increases
Solution Approach 1:
The system enables self-service pairing by automatically detecting and displaying pairing request information from position indicators. Users simply need to observe the display and confirm the correct pairing, eliminating complex manual specification procedures while maintaining pairing accuracy.
Solution Approach 2:
The display unit performs preliminary action by pre-presenting pairing request information to the user before the actual pairing connection is established. This allows users to identify the correct target in advance, simplifying the subsequent pairing operation while ensuring accuracy.
3Adaptability or versatility
If pairing request transmission range is extended beyond proximity, then pairing flexibility increases, but information sharing reliability decreases
Solution Approach 1:
The system dynamically adjusts pairing behavior based on proximity detection results. When indicators are in close proximity, automatic pairing is enabled with high reliability. The display unit provides dynamic information about pairing requests, allowing users to verify and confirm pairings even when range is extended, maintaining both flexibility and reliability.
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
Enables precise and straightforward pairing between the position indicator and detecting apparatus by sharing proximity information, preventing unintended connections and simplifying the manipulation process.
Implementation Method 1
a position indicator which is, for example, an electronic pen (stylus) conforming to electromagnetic induction (EMR) method or active capacitive coupling method
Implementation Method 2
digital wireless communication (specifically, Bluetooth (registered trademark))
Data Source
AI summary
A pairing method between a stylus and a position detecting apparatus that detects a position pointed to by the stylus includes: sharing, by the position detecting apparatus, a sensor identifier (ID) that is included in an uplink signal transmitted to the stylus while the stylus and the position detecting apparatus are proximate to each other at or within a predetermined distance, the sensor ID uniquely identifying the position detecting apparatus; and determining, by the position detecting apparatus using the sensor ID, whether information is transmitted from the stylus, the information being transmitted via a first wireless communication having a range that is longer than the predetermined distance.