Multi-Mode User Input System with Detent Mechanism

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Solution Overview

Problem

Conventional mobile communication devices face challenges in providing easy access to multiple levels of functionality, as users must fully open the device to access additional functions, and existing solutions like flip and slider designs do not allow simultaneous access to both levels of functionality.

Innovation Solution

A multi-mode user input system that includes a first and second portion of the mobile device, where the first portion can be moved between a closed and open position, and a detent mechanism allows it to be held at an intermediate position, providing partial user input area functionality without fully opening the device, utilizing magnetic elements or cam mechanisms for locking and detent functions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the device uses a flip phone design with a hinge, then additional functionality is revealed when opened, but the user must entirely open the phone to access the functions

Engineering Contradiction:
Improvefunctionality accessVSAvoiduser access requirement
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent divides the opening movement into distinct segments: a first opening movement to a first position revealing first functions, and a second opening movement to a second position revealing second functions. This segmentation allows users to access different functionality levels without fully opening the device, resolving the contradiction between versatility and ease of operation.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the device uses a slider function to reveal keyboard or telephone keys, then additional functionality is provided, but the user must open the phone fully to access the functionality

Engineering Contradiction:
Improvefunctionality provisionVSAvoidopening requirement
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent implements dynamic positioning where the first portion can be held at multiple discrete positions (first position and second position) during the opening movement. This dynamic capability allows the device to adapt to different user needs by providing different functionality levels based on the opening distance, eliminating the requirement to fully open the phone for all functions.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

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

Engineering Contradiction:
Improvefunctionality levelsVSAvoidsimultaneous access
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent introduces a spatial dimension to functionality access by correlating the physical position of the first portion (first position vs. second position) with different functional modes. This dimensional mapping allows the device to provide different functionality levels at different opening positions, enabling users to access appropriate functions without requiring full opening or complex directional sliding operations.

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 different levels of functionality without fully opening the device, allowing for easier and more efficient use of multimedia and keyboard functions simultaneously, enhancing user experience by providing a compact and versatile input system.

Implementation Method 1

a magnetic element provided to the first portion and a magnetically attractable material provided to the second portion

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Implementation Method 2

a cam mechanism provided to the first portion that allows the first portion to be held at a specific position relative to the second portion

Methodology Applied
Scientific EffectMechanical constraint: Cam

Data Source

PatentUS8126521B2Multi-mode user input system and method
Publication Date: 2012.02.28 MALIKIE INNOVATIONS LTD
  • US8126521B2 patent drawing
  • US8126521B2 patent drawing
  • US8126521B2 patent drawing

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.