Conductive Touchscreen Controller for Precise Portable Input

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Solution Overview

Problem

Touchscreen devices, particularly in DJ sets, face challenges such as small size making refined movements difficult, friction issues, and the need for external devices that reduce portability and add complexity.

Innovation Solution

A touchscreen control device with a manually operable conductive controller that attaches to a touchscreen via conductive connectors, allowing for precise movements without cables or wireless connections, and includes a calibration method to adjust to varying screen sizes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Weight of moving object

If a touchscreen device is made small and portable, then portability is improved, but the ability to perform refined movements deteriorates

Engineering Contradiction:
ImproveportabilityVSAvoidrefined movements
Core Design Contradiction:
Weight of moving objectVSEase of operation

Solution Approach 1:

A conductive controller acts as an intermediary tool between the user and the touchscreen. The controller is a physical device with buttons, sliders, and knobs that can be attached to the touchscreen surface via conductive connectors. When the user manipulates the controller, it makes contact with the touchscreen at specific locations, allowing the touchscreen to detect the controller's position and the user's inputs through electrical signals. This intermediary approach enables refined control movements while keeping the main device portable.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If fingers are used directly on the touchscreen, then operation is simple, but friction makes smooth operation difficult

Engineering Contradiction:
Improveoperation simplicityVSAvoidfriction
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The conductive controller serves as a mediator that eliminates direct finger contact with the touchscreen surface. The controller has conductive elements that contact the touchscreen, and when the user manipulates the controller's physical controls (buttons, sliders, knobs), the controller transmits these inputs to the touchscreen through electrical signals without the user's fingers touching the screen. This eliminates friction between fingers and the touchscreen while maintaining operational simplicity.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If external devices are added to improve control, then control precision is improved, but device complexity and portability deteriorate

Engineering Contradiction:
Improvecontrol precisionVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The conductive controller is designed to be attached directly to the touchscreen surface using conductive connectors that adhere to the screen. This merging approach integrates the external control device with the touchscreen itself, eliminating the need for separate wireless devices that would require additional cables, power sources, and pairing mechanisms. The controller becomes an extension of the touchscreen, providing precise control while maintaining a simple, unified system architecture.

Inventive Principle:
Principle #5Merging (Combining)

4Measurement precision

If conductive connectors are used to attach the controller, then control precision is improved, but the risk of electrical interference increases

Engineering Contradiction:
Improvecontrol precisionVSAvoidelectrical interference
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The conductive controller and its connectors serve as an intermediary system that manages electrical interactions between the user, the controller, and the touchscreen. The conductive connectors establish controlled electrical contact points on the touchscreen surface, allowing the touchscreen's existing capacitive or resistive sensing mechanisms to detect the controller's position and inputs. This intermediary electrical connection system enables precise control while utilizing the touchscreen's built-in signal processing capabilities to manage and filter electrical interference.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 smooth operation of touchscreen devices by avoiding finger friction and maintaining portability, while allowing for precise control and calibration across different screen sizes.

Implementation Method 1

The manually operable conductive controller is moveable from a first position in which it is conductively coupled to the first conductive screen connector for providing a first electrical signal to the touchscreen

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS12498808B2Touchscreen control device having conductive screen connectors
Publication Date: 2025.12.16 CHING WAI LOK WHITNEY
  • US12498808B2 patent drawing
  • US12498808B2 patent drawing
  • US12498808B2 patent drawing

AI summary

In general terms the present invention proposes a touchscreen control device. The touchscreen control device having a manually operable conductive controller. The touchscreen control device also includes first and second conductive screen connectors for attaching the device to a touchscreen. The controller is moveable from a first position in which it is conductively coupled to the first screen connector for providing a first electrical signal to the touchscreen to a second position in which it is conductively coupled to both the first and second screen connectors for providing a second electrical signal to the touchscreen.