Lock State Speed Dial Authentication for Mobile Devices

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Solution Overview

Problem

Users face inconvenience when trying to make urgent phone calls from a locked mobile communication device, as they must first unlock it and navigate through additional steps, which can be time-consuming.

Innovation Solution

A mobile communication device and method that allows rapid phone calls in a lock state by using a storage unit to store an unlock password and speed dial codes, where the processing unit dials a corresponding phone number upon correct input of the password and code, without increasing hardware costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the device requires unlocking and navigating through applications to make a phone call, then security is maintained, but the time required to make a call increases

Engineering Contradiction:

ImprovesecurityVSAvoidtime to make a call

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system pre-sets speed dial codes and their corresponding password combinations in advance. When a user needs to make a quick call, they simply input the pre-configured speed dial code, and the system automatically validates against the corresponding password and initiates the call. This eliminates the need for manual unlocking and navigation through applications during urgent situations.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent creates a simplified virtual interface layer that copies essential calling functionality within the lock screen. Instead of requiring full application navigation, the system presents a streamlined interface with pre-configured speed dial options that can be accessed directly from the lock state, reducing the operational steps while maintaining security through password verification.

Inventive Principle:

Principle #26Copying

2Speed

If the device provides quick access to phone calls from lock state, then speed is improved, but device complexity increases

Engineering Contradiction:

Improvecall initiation speedVSAvoidsystem complexity

Core Design Contradiction:

SpeedVSDevice complexity

Solution Approach 1:

The existing lock screen interface is enhanced to serve dual purposes: maintaining security verification while simultaneously providing access to speed dial functionality. The same password verification mechanism used for unlocking is also employed to authenticate speed dial codes, eliminating the need for separate authentication systems and reducing overall complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The calling functionality is segmented into discrete speed dial codes that can be independently configured and accessed. Each speed dial code is associated with a specific password and contact, allowing the system to provide quick access to frequently called numbers without requiring the user to navigate through the entire contact list or application menu structure.

Inventive Principle:

Principle #1Segmentation

3Ease of operation

If the device allows password-based speed dialing from lock state, then ease of operation is improved, but security risks increase

Engineering Contradiction:

Improveoperational convenienceVSAvoidsecurity risks

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The system changes the authentication parameter from full device unlock to targeted speed dial authorization. Instead of requiring complete device decryption and application access, the system uses a simplified password verification process that only grants permission to initiate a specific pre-configured call. This maintains security by limiting the scope of access while improving ease of operation for urgent calls.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS9197727B2Mobile communication device capable of rapidly making phone call in lock state and method thereof

Publication Date: 2015.11.24 WISTRON CORP

AI summary

A mobile communication device includes a storage unit for storing an unlock password, M speed dial codes and N phone numbers, each of the M speed dial codes being corresponding to one of the N phone numbers; an input unit; a communication unit; and a processing unit; wherein when the input unit is operated to sequentially input a user input password and a user input code in a lock state, the processing unit determines whether the user input password is identical to the unlock password and determines whether the user input code is identical to one of the M speed dial codes, when the user input password is identical to the unlock password and the user input code is identical to an i-th speed dial code, the processing unit dials the phone number corresponding to the i-th speed dial code through the communication unit.