Multi-mode User Input System with Detent Mechanism

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Solution Overview

Problem

Conventional mobile communication devices face challenges in providing user-friendly access to multiple functionalities due to their design, requiring full opening for functionality access and limiting simultaneous access to different levels of functionality, especially in flip and slider phone concepts.

Innovation Solution

A multi-mode user input system for mobile devices featuring a first and second portion that can move between closed, intermediate, and open positions, utilizing a detent mechanism and processor to change applications based on position, allowing partial or full user input area access without full device opening, and employing magnetic and cam-based locking mechanisms for precise positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the device uses a flip phone concept with a hinge that opens in a clam shell fashion to reveal additional functions, then the device provides access to multiple functionalities, but the user must entirely open the phone to access the functions

Engineering Contradiction:
Improveaccess to functionalitiesVSAvoidoperation convenience
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The device is divided into a first portion and a second portion that can be independently positioned. The first portion can be separated from the second portion to reveal a keyboard, while the second portion can be independently positioned to reveal telephone keys. This segmentation allows users to access different functionalities without fully opening the entire device, resolving the contradiction between providing multiple functions and maintaining ease of operation.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the device uses a slider function where the face or a portion is slid along a base to reveal functionality, then the device provides access to additional functions, but the user must open the phone fully to access the functionality

Engineering Contradiction:
Improveaccess to functionalitiesVSAvoidoperation convenience
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The device is divided into a first portion and a second portion that can be independently positioned. The first portion can be separated from the second portion to reveal a keyboard, while the second portion can be independently positioned to reveal telephone keys. This segmentation allows users to access different functionalities without fully opening the entire device, resolving the contradiction between providing multiple functions and maintaining ease of operation.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If the device uses two directional sliding capability to provide access to different functionality, then the device provides multiple access paths, but the user may not be able to access both levels of functionality at the same time

Engineering Contradiction:
Improveaccess to functionalitiesVSAvoidsimultaneous access
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The device is divided into a first portion and a second portion that can be independently positioned. The first portion can be separated from the second portion to reveal a keyboard, while the second portion can be independently positioned to reveal telephone keys. This segmentation allows users to access different functionalities without fully opening the entire device, resolving the contradiction between providing multiple functions and maintaining ease of operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention introduces a new spatial dimension for functionality access by allowing the first portion to be positioned at different locations relative to the second portion. The first portion can be positioned to reveal a keyboard when separated from the second portion, or positioned over the second portion to reveal telephone keys. This dimensional flexibility enables simultaneous access to multiple functionality levels without requiring the user to fully open the device or choose between different sliding directions.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 access various functionalities without fully opening the device, allowing for simultaneous use of different input modes and automatic application changes, enhancing usability and functionality in a compact form factor.

Implementation Method 1

The detent mechanism may include: a lower magnetically active element provided to the second portion; and an upper magnetically active element provided to the first portion that is configured to align with the lower magnetically active element when the first portion is at the first mode position.

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Implementation Method 2

The first portion may be slidably engaged with the second portion by a sliding mechanism

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP2224690B1Multi-mode user input system and method
Publication Date: 2015.07.15 BLACKBERRY LTD
  • EP2224690B1 patent drawingFigure 1
  • EP2224690B1 patent drawingFigure 2
  • EP2224690B1 patent drawingFigure 3

AI summary

A system and method for multi-mode user input for a mobile device, the system including: a second portion of the mobile device; a first portion of the mobile device that is movably engaged with the second portion to move between a closed position and an open position to allow access to an open user input area; and a detent mechanism configured to allow the first portion to be held at a first mode position between the closed position and the open position to allow access to a partial user input area that is less than the open user input area. The partial user input area has predetermined functions associated therewith, which may be changed when the first portion is moved to an open position, exposing the open user input area.