Hands-Free Mode Activation via Speed Tracking

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Solution Overview

Problem

Users often fail to activate hands-free mode while driving, leading to potential accidents due to distraction from handheld device interaction, as they may not know how to enable it or find it too cumbersome to navigate menus.

Innovation Solution

A system that tracks the speed of a handheld device and audibly prompts users to enable hands-free mode when exceeding a predetermined speed, allowing hands-free operation through voice input for tasks like submitting payroll or sending invoices without tactile input.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If users interact with handheld device by hand while driving, then task completion efficiency is improved, but safety deteriorates due to distraction and hands-free laws prohibit this behavior

Engineering Contradiction:

Improvetask completion efficiencyVSAvoidsafety risk

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces manual mechanical interaction with the device (touchscreen, keyboard) with voice-based acoustic interaction. Users activate hands-free mode and perform tasks through spoken commands, eliminating the need to physically handle the device while driving, thus maintaining productivity while ensuring safety.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system automatically detects when the user is in motion through accelerometer data, prompts them to switch to hands-free mode, and guides them through voice-activated task completion. This self-service approach reduces the cognitive load and effort required to switch modes, making the safe option as convenient as the unsafe option.

Inventive Principle:

Principle #25Self-service

2Object-affected harmful factors

If users navigate menus to activate hands-free mode, then safety is improved by complying with hands-free laws, but ease of operation deteriorates due to the cumbersome process

Engineering Contradiction:

ImprovesafetyVSAvoidease of activating hands-free mode

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The system performs preliminary detection of motion status through the accelerometer before the user needs to activate hands-free mode. By proactively detecting when the user is in motion and automatically prompting them to switch modes, the system eliminates the need for users to manually navigate complex menus, making the safe option immediately accessible.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors accelerometer data and provides real-time feedback to the user through prompts when hands-free mode should be activated. This feedback loop guides users through the activation process and confirms when hands-free mode is active, reducing the operational burden while maintaining safety compliance.

Inventive Principle:

Principle #23Feedback

3Object-affected harmful factors

If users wait until after the trip to finish tasks, then safety is improved by avoiding device interaction while driving, but productivity deteriorates due to delayed task completion

Engineering Contradiction:

ImprovesafetyVSAvoidtask completion timing

Core Design Contradiction:

Object-affected harmful factorsVSProductivity

Solution Approach 1:

The system dynamically adapts the interaction mode based on the detected motion status. When the user is stationary, traditional manual interaction is available. When motion is detected, the system automatically transitions to voice-activated hands-free mode, allowing users to complete tasks safely during the trip without delay, thus maintaining both safety and productivity.

Inventive Principle:

Principle #15Dynamics

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

Reduces the risk of accidents by encouraging hands-free device use while driving, adhering to hands-free laws, and simplifying the activation process by automating the transition to hands-free mode based on speed detection.

Implementation Method 1

the system tracks the speed by calculating the speed from acceleration data gained from an accelerometer in the handheld device

Methodology Applied

Scientific EffectAcceleration: Accelerometer

Implementation Method 2

the system tracks the speed of the handheld device by calculating the speed from location data gained from a Global Positioning System (GPS) receiver in the handheld device

Methodology Applied

Scientific EffectGlobal Positioning System:

Data Source

PatentUS9002412B1Automatically activating hands-free mode while tracking speed

Publication Date: 2015.04.07 INTUIT INC

AI summary

The disclosed embodiments relate to a system that enables a user to continue accomplishing a task on a handheld device while moving. During operation, the system tracks the speed of the handheld device while the user is interacting with an application on the device. If the speed is greater than a pre-determined speed, the system audibly prompts the user to enable hands-free mode. If the user says yes, the system enables hands-free mode and the user may continue to use the application in hands-free mode. Otherwise, the system continues to run the application without enabling hands-free mode.