Motion-Based Input Control for Small Display Navigation

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Solution Overview

Problem

Portable electronic devices with small display screens face challenges in user interaction due to the need for manual manipulation using touchpads or buttons, which can be cumbersome for navigating and interacting with image content.

Innovation Solution

An input control system that employs a motion detector and input translation module, utilizing a camera to detect relative motion of the device in three-dimensional space and translate it into input for applications, allowing for panning and scrolling without continuous manual movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual input methods (touchpad, buttons) are used for navigation on small displays, then device portability is maintained, but user interaction becomes cumbersome and difficult

Engineering Contradiction:

Improveuser interactionVSAvoidinput manipulation

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces manual mechanical input methods (touchpad, buttons) with motion-based control. The camera captures device motion in 3D space, and the system translates this motion into navigation commands, substituting physical manipulation with automatic motion detection and interpretation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a camera and motion detection system as an intermediary between the user and the display content. Instead of direct manual manipulation, the user's physical movement of the device is captured by the camera and translated into navigation inputs, serving as a mediator that converts natural motion into actionable commands.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Measurement precision

If image content is displayed at full resolution on small screens, then content quality is improved, but the portion of content visible at once is reduced

Engineering Contradiction:

Improveimage resolutionVSAvoidvisible content area

Core Design Contradiction:

Measurement precisionVSArea of stationary object

Solution Approach 1:

The patent implements dynamic navigation where the visible content area can change based on detected motion. As users move the device, the system dynamically adjusts the displayed portion of the image, allowing high-resolution display of the current view while enabling access to the full content through natural motion-based panning and scrolling.

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

Enables intuitive and efficient navigation and interaction with image content on small display screens by converting device motion into application inputs, enhancing user experience and reducing the complexity of manual input methods.

Implementation Method 1

detect relative motion of the device in three-dimensional space by analyzing image content captured using camera 18

Methodology Applied

Scientific EffectMotion detection through image analysis:

Data Source

PatentUS8390649B2Electronic device input control system and method

Publication Date: 2013.03.05 QUALCOMM INC

AI summary

An electronic device comprises an input translation module configured to translate relative motion of the electronic device into input to an application executing on the electronic device, the application causing image content to be displayed on a display screen of the electronic device, and an input control interface configured to indicate at least one component of the relative motion relative to a reference point.