Accelerometer Gesture Control for Portable Device Alert Silencing

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Solution Overview

Problem

Portable electronic devices face challenges in designing user interfaces that allow easy interaction, particularly for handheld devices with small screens, leading to complex key sequences and menu hierarchies, and issues with silencing audible alerts in inconvenient situations.

Innovation Solution

A portable multifunction device with a touch-sensitive display and acceleration sensors that enable users to silence audio alerts and modify alert modes through gestures, such as 'smacks' on the device, even when it's in a pocket or enclosure, using computer-implemented methods and programs to detect and respond to predetermined user gestures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional user interfaces with physical pushbuttons are used, then device functionality can be accessed, but the interface becomes complex with multiple key sequences and menu hierarchies that users must memorize

Engineering Contradiction:
Improvedevice functionalityVSAvoidinterface complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical pushbutton interface system with an accelerometer-based gesture recognition system. The accelerometer detects physical gestures (shaking, tapping, dropping) and translates them into device control commands, eliminating the need for complex menu hierarchies and key sequences while maintaining full device functionality.

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

Solution Approach 2:

The device uses its own motion sensors to automatically detect user gestures and execute corresponding actions without requiring manual navigation through interfaces. The system serves itself by interpreting physical movements as direct control inputs, reducing the cognitive load on users.

Inventive Principle:
Principle #25Self-service

2Object-affected harmful factors

If operating modes are provided to silence alerts, then unwanted audible alerts can be prevented, but users often forget to activate them and must extract the device to silence alerts via the interface

Engineering Contradiction:
Improveunwanted audible alertsVSAvoidalert silencing operation
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The system pre-configures gesture commands that can immediately silence alerts without requiring users to navigate through menus or activate operating modes in advance. The accelerometer detects alert-silencing gestures (such as specific shaking patterns) and executes the silencing function directly, making the action available whenever needed.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent replaces the manual interface interaction required for alert silencing with accelerometer-based gesture detection. Users can silence alerts by performing physical gestures with the device, eliminating the need to extract the device and navigate through user interface elements.

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

3Volume of moving object

If the device is made compact with smaller screens, then portability is improved, but the user interface becomes more difficult to interact with

Engineering Contradiction:
Improvedevice sizeVSAvoidinterface interaction
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The patent substitutes the screen-based mechanical interface with a motion-based control system using accelerometers. This allows full device control through physical gestures regardless of screen size, making compact devices equally easy to operate as larger ones by translating body movements into device commands.

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

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 users to readily silence ongoing audible alerts and manage alert modes without interacting with the device's interface, improving user experience by simplifying interaction and reducing frustration with complex interfaces.

Implementation Method 1

an accelerometer that is responsive to movement of the device

Methodology Applied
Scientific EffectAccelerometer: Accelerometer

Data Source

PatentUS7671756B2Portable electronic device with alert silencing
Publication Date: 2010.03.02 APPLE INC
  • US7671756B2 patent drawing
  • US7671756B2 patent drawing
  • US7671756B2 patent drawing

AI summary

In some embodiments, audible alerts issued by a portable electronic device can be silenced in response to user smacks on the body of the device. These audible alerts are initiated by applications running on the device, such as email, phone, alarm, and/or timer applications. In some embodiments, the device includes one or more accelerometers that detect and signal the user smacks. In some embodiments, the alert response mode of the device (such as whether it rings or vibrates to signal an alert) can be changed in response to predefined patterns of user smacks.