Handheld Device Unlocking via Touch and Motion Sensor Fusion

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current handheld device unlocking methods are complex and indirect, requiring users to contact specific keys or perform specific gestures on the touch panel, necessitating a more direct and convenient unlocking mechanism.

Innovation Solution

A handheld device equipped with a touch panel, motion sensor, and processor that senses both touch and motion signals to unlock the device, eliminating the need for specific key contact or gestures, and also adjusts audio input/output settings based on device orientation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional unlocking methods using specific keys or gestures are used, then the device can be unlocked securely, but the unlocking process becomes complex and indirect

Engineering Contradiction:
Improveunlocking processVSAvoidunlocking operation
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent combines touch sensing and motion sensing into a unified unlocking mechanism. The processor integrates signals from both the touch panel and motion sensor to determine device acquisition, creating a merged sensing system that simplifies the unlocking process while maintaining security.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The device uses its own motion characteristics and touch input to automatically determine user intent for unlocking. The system self-activates the unlocking function when it detects the characteristic motion pattern and touch signal, eliminating the need for manual key pressing or gesture following.

Inventive Principle:
Principle #25Self-service

2Productivity

If traditional key contact or gesture-based unlocking is required, then security is maintained, but user convenience and speed are reduced

Engineering Contradiction:
Improveunlocking speedVSAvoidunlocking convenience
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The device performs preliminary sensing of motion patterns and touch input before the actual unlocking action is required. By detecting the characteristic motion and touch signal in advance, the system prepares to unlock immediately when the acquisition state is confirmed, increasing both speed and convenience.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent replaces traditional mechanical key pressing or deliberate gesture execution with automatic sensing of motion and touch. The processor interprets the combined signals to determine user intent, substituting manual mechanical operations with automated electronic detection and response.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If the device uses separate touch and motion sensing systems, then functionality is comprehensive, but system complexity increases

Engineering Contradiction:
Improvesensing capabilityVSAvoidsystem structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The processor serves multiple functions by handling both touch signal processing and motion signal processing. It determines device acquisition by integrating inputs from both sensing systems, making the processor a universal control unit that manages diverse sensing capabilities without requiring separate control circuits.

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

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 quick and direct unlocking of handheld devices by integrating touch and motion sensing, enhancing user convenience and simplifying the unlocking process while optimizing audio functionality.

Implementation Method 1

a touch panel, configured to sense a touch to generate a touch signal

Methodology Applied
Scientific EffectCapacitive sensing: Capacitance

Implementation Method 2

a motion sensor, configured to sense a motion of the handheld device to generate a motion signal

Methodology Applied
Scientific EffectMotion sensing: Accelerometer

Data Source

PatentUS9122457B2Handheld device and unlocking method thereof
Publication Date: 2015.09.01 HTC CORP
  • US9122457B2 patent drawing
  • US9122457B2 patent drawing
  • US9122457B2 patent drawing

AI summary

A handheld device and an unlocking method thereof are provided. The handheld device comprises a touch panel, a motion sensor and a processor. The touch panel senses a touch to generate a touch signal. The motion sensor senses a motion of the handheld device to generate a motion signal. The processor, which is electrically connected to the touch panel and the motion sensor, receives the touch signal and the motion signal and unlocks the handheld device according to the touch signal and the motion signal.