Totem Input Filtering for Touchscreen Displays

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Solution Overview

Problem

Conventional touchscreen systems face challenges in distinguishing between intended and unintended inputs, particularly when using totems on a desktop touchscreen display, leading to difficulties in interpreting user intent and managing false touch inputs.

Innovation Solution

The system employs a touch controller and operating system collaboration to filter and interpret totem inputs based on user interface context, using active capacitance and friction devices to enhance totem tracking and provide feedback, while visual interactions are managed through integrated displays within the totem or on the touchscreen.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the system processes all totem input components, then comprehensive input detection is achieved, but system load and processing time increase

Engineering Contradiction:
Improveinput detection accuracyVSAvoidsystem processing efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent extracts and filters out irrelevant totem input components from the complete set of detected inputs. The touch controller identifies which input components are relevant based on the active user interface context and selectively processes only those, discarding unnecessary components. This extraction approach maintains comprehensive detection capability while reducing system load by processing only the essential input data.

Inventive Principle:
Principle #2Taking out (Extraction)

2Measurement precision

If the system filters totem inputs based on user interface context, then input precision is improved, but processing complexity increases

Engineering Contradiction:
Improveinput interpretation accuracyVSAvoidprocessing system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system performs preliminary action by pre-establishing the user interface context and determining which input components will be relevant before the totem interaction occurs. The touch controller is configured in advance with knowledge of the active user interface state, allowing it to immediately filter and process only the relevant input components when totem movement is detected, rather than analyzing all inputs and determining relevance afterward.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If the system provides real-time feedback for totem interactions, then user experience is enhanced, but system latency increases

Engineering Contradiction:
Improveuser interaction qualityVSAvoidsystem response time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The system extracts and processes only the relevant totem input components that directly affect user feedback, discarding unnecessary processing steps for irrelevant inputs. By filtering out redundant input analysis and processing only the essential movement data that requires immediate feedback, the system maintains high-quality real-time user interaction while minimizing processing time and latency.

Inventive Principle:
Principle #2Taking out (Extraction)

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

This approach reduces system load and latency by filtering out irrelevant totem input components, improves input precision, and provides real-time user feedback, enhancing the end-user experience by accurately interpreting totem movements and interactions.

Implementation Method 1

The system employs a touch controller and operating system collaboration to filter and interpret totem inputs based on user interface context, using active capacitance and friction devices to enhance totem tracking

Methodology Applied
Scientific EffectCapacitance: Capacitance

Implementation Method 2

The system employs a touch controller and operating system collaboration to filter and interpret totem inputs based on user interface context, using active capacitance and friction devices to enhance totem tracking and provide feedback

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS10761618B2Information handling system touch device with automatically orienting visual display
Publication Date: 2020.09.01 DELL PROD LP
  • US10761618B2 patent drawing
  • US10761618B2 patent drawing
  • US10761618B2 patent drawing

AI summary

A totem resting on a touchscreen display integrates a display at an upper surface to present visual information to an end user. Totem orientation is determined from totem touches at the touchscreen display and applied with other factors to orient the presentation of visual information at the totem to the orientation of an end user viewing the touchscreen display. Visual information presented at the totem may include input icons to associate the totem with an application, notifications from applications, and content presented at the touchscreen display under the totem.