Portable Phone Display Magnification via Vertical Acceleration

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Solution Overview

Problem

Conventional display methods in portable electronic devices lack the natural feeling of using a magnifying glass for zooming in and out of images, as they rely on buttons or touch panel movements that do not replicate the intuitive experience of a magnifying glass.

Innovation Solution

A portable electronic appliance with a display unit that detects movement along a vertical direction to dynamically change the display size of information, mimicking the magnifying glass effect by enlarging or compressing images based on the movement, and optionally displaying the current magnification level.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional button or touch panel methods are used for zooming, then the device structure remains simple, but the user experience lacks the natural feeling of using a magnifying glass

Engineering Contradiction:

Improveuser experienceVSAvoiddevice structure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces conventional button presses or touch panel gestures with acceleration sensor-based detection. The acceleration sensor detects vertical movement of the device, and the control unit translates this into magnification changes, substituting mechanical input methods with sensor-based detection to achieve more natural magnifying-glass-like operation

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The acceleration sensor acts as an intermediary between the user's physical movement and the display magnification. Instead of direct button presses or touch gestures, the sensor captures vertical movement and converts it into magnification control signals, providing a more intuitive interface

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If the display unit is moved vertically to change magnification, then the zooming operation becomes more intuitive, but the system requires additional movement detection capability

Engineering Contradiction:

Improvezooming operationVSAvoidmovement detection

Core Design Contradiction:

Ease of operationVSDifficulty of detecting and measuring

Solution Approach 1:

The patent uses acceleration sensors to detect vertical movement instead of requiring complex mechanical position sensors or visual tracking systems. The acceleration sensor conveniently captures movement data that can be integrated to determine displacement and direction, providing an elegant solution for detecting user intent

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS7508374B2Electronic appliance having magnifying-glass display function, display controlling method, and display control program

Publication Date: 2009.03.24 CASIO COMPUTER CO LTD

AI summary

In a portable telephone, a sensor constructed of, for example, a 3-axial acceleration sensor is built in the vicinity of a display unit which is provided on a main body of the portable telephone. When a user moves the display unit along a vertical direction (Z-axis direction) with respect to a display screen thereof while the user holds the appliance main body, the sensor senses both a move direction and a move amount of the display unit, and thus, information displayed on the display screen of the display unit is enlarged, or compressed in display magnification defined in response to the sensed move amount. As a result, a display size of the information displayed on the display screen can be changed in such a manner that the user may have such a natural feeling achieved by moving a magnifying glass.