Electronic Pen Connection Control Using Charging-Based Identification

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Solution Overview

Problem

Electronic devices face challenges in establishing a reliable communication connection with external devices, such as electronic pens, due to interference from multiple devices transmitting advertising signals, leading to connections with unintended devices rather than the target device.

Innovation Solution

The electronic device employs a combination of wireless charging and communication circuits to detect and identify the target electronic pen based on inherent information, maintaining or re-establishing a connection by charging the pen and using unique Bluetooth addresses or charging-related information to differentiate between multiple devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the electronic device uses short-range wireless communication to connect with external electronic devices, then wireless communication capability is improved, but connection reliability deteriorates when multiple devices transmit advertising signals simultaneously

Engineering Contradiction:

Improvewireless communication capabilityVSAvoidconnection reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces wireless charging as an intermediary mechanism to establish physical proximity verification. The charging circuit acts as a mediator that confirms the electronic pen is actually inserted into the electronic device before enabling communication connection, thus resolving the reliability issue when multiple devices are present in the wireless communication range

Inventive Principle:

Principle #24Intermediary (Mediator)

2Speed

If the electronic device connects with the nearest external electronic device transmitting advertising signal, then connection establishment speed is improved, but connection accuracy deteriorates when the nearest device is not the target device

Engineering Contradiction:

Improveconnection establishment speedVSAvoidtarget device identification accuracy

Core Design Contradiction:

SpeedVSMeasurement precision

Solution Approach 1:

The patent performs preliminary verification through wireless charging detection before establishing communication connection. By checking if the electronic pen is properly inserted via charging circuit detection first, the system ensures target device identification accuracy before proceeding with fast connection establishment

Inventive Principle:

Principle #10Preliminary action

3Ease of operation

If the electronic device establishes communication connection without verifying device identity, then connection process is simplified, but misconnection with unintended devices occurs

Engineering Contradiction:

Improveconnection process simplicityVSAvoiddevice identification reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system uses the electronic pen's own charging capability as a self-verification mechanism. The electronic pen automatically receives charging power when inserted, and this charging interaction itself serves as identity verification, maintaining simplicity while ensuring reliability

Inventive Principle:

Principle #25Self-service

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

This solution ensures accurate and stable communication connections with the intended electronic pen by distinguishing it from other devices through unique identification and charging patterns, preventing misconnection and maintaining connectivity even when previous connection histories are absent.

Implementation Method 1

a first wireless charging circuit disposed inside the housing so as to be adjacent to the recess... charge the electronic pen through the first wireless charging circuit

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS11989365B2Electronic device including electronic pen and method of controlling communication connection between electronic device and electronic pen

Publication Date: 2024.05.21 SAMSUNG ELECTRONICS CO LTD

AI summary

An electronic device including an electronic pen and a method of controlling a communication connection with the electronic pen is provided. The electronic device include a housing, a touch-screen display, a first wireless communication circuit, an extended recess disposed inside the housing, a first wireless charging circuit; an electronic pen including a second wireless communication circuit and a second wireless charging circuit electrically coupled to the first wireless charging circuit, a processor, and a memory. The memory stores instructions causing the processor to detect whether the electronic pen is inserted into the recess, charge the electronic pen through the first wireless charging circuit based on the detection, receive inherent information of the electronic pen through the first wireless communication circuit during or after the charging, and maintain or re-establish a communication connection with the electronic pen based on at least a portion of the received inherent information.