Mobile Terminal Coordinate Controllers for Touch Input Failure

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Solution Overview

Problem

Large-screen mobile phones without keyboards face operational challenges when the touch screen is damaged or non-functional, making basic functions like unlocking, calling, and texting inconvenient.

Innovation Solution

A mobile terminal with a main control module and display module, including latitudinal and longitudinal coordinate controllers, allows for coordinate key control by determining target point positions on the screen using analog voltages, enabling selection operations even when the touch function is invalid.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If the mobile terminal uses a large-size touch screen to replace keyboards, then the display area is increased, but the operability is reduced when the touch screen is damaged or not convenient to use

Engineering Contradiction:

Improvedisplay areaVSAvoidoperability

Core Design Contradiction:

Area of stationary objectVSEase of operation

Solution Approach 1:

The patent introduces coordinate controllers and cursor lines as intermediary elements between the user and the interface. When the touch screen is damaged or unavailable, users can still operate the device by controlling cursor lines through coordinate controllers, which then interact with interface elements on the display screen. This intermediary mechanism ensures continuous operability despite touch screen issues.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the interaction parameter from direct touch input to coordinate-based control. By converting the control method from touch gestures to coordinate line intersection and slider positioning, the system provides an alternative operation mode that maintains functionality even when the original touch interface is compromised.

Inventive Principle:

Principle #35Parameter changes

2Device complexity

If only 2-3 function keys are used for menu operations, then the device complexity is reduced, but the functionality is lost when touch screen is unavailable

Engineering Contradiction:

Improvedevice complexityVSAvoidfunctionality

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent makes the coordinate controllers and cursor line system multi-functional. The same coordinate control mechanism serves both as a navigation aid during normal operation and as a primary input method when the touch screen is damaged. This universal design ensures that the minimal hardware configuration can handle both standard and emergency operational scenarios.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Area of stationary object

If the touch screen is damaged or not convenient to use, then the display function remains, but the input control capability is reduced

Engineering Contradiction:

Improvedisplay functionVSAvoidinput control capability

Core Design Contradiction:

Area of stationary objectVSEase of operation

Solution Approach 1:

The patent segments the input control function from the touch screen itself. By introducing separate coordinate controllers and cursor lines that operate independently of the touch screen's input capability, the system allows the display function to remain intact while providing an alternative input pathway through the coordinate control mechanism.

Inventive Principle:

Principle #1Segmentation

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

Facilitates convenient and intuitive operation of mobile phone menus, allowing users to perform tasks like calling and sending messages using coordinate lines on the screen, even when the touch function is unavailable.

Implementation Method 1

a circuit form of the display screen latitudinal coordinate controller and the display screen longitudinal coordinate controller generating the analog voltages is a resistive form

Methodology Applied

Scientific EffectResistive form: Electrical Resistance

Implementation Method 2

a circuit form of the display screen latitudinal coordinate controller and the display screen longitudinal coordinate controller generating the analog voltages is a resistive form, a capacitive form or a photoelectric form

Methodology Applied

Scientific EffectCapacitive form: Capacitance

Implementation Method 3

Methodology Applied

Scientific EffectPhotoelectric form: Photoelectric Effect

Data Source

PatentUS9325834B2Mobile terminal display input with x-y coordinate sliders

Publication Date: 2016.04.26 ZTE CORP

AI summary

A mobile terminal and a method for input control of the mobile terminal are provided. The method comprises: when detecting that the module terminal is in a coordinate control state, inputting a latitudinal position of a target point on a display screen; inputting a longitudinal position of the target point on the display screen; a main control module of the mobile terminal determining the latitudinal and longitudinal position of target point on the display screen according to a latitudinal analog voltage of a display screen latitudinal coordinate controller and a longitudinal analog voltage of a display screen longitudinal coordinate controller, and displaying the target point position on the display screen; the main control module executing a selection operation of an area corresponding to the target point position on the display screen after receiving a triggering indication of the target point position of the display screen.