Display Device Voice Content Selection via DOM Classification

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Solution Overview

Problem

Users face inconvenience in selecting desired content on web application screens, especially when there is overlapping text, as they need to directly click on the content using a remote control, which can be time-consuming and error-prone.

Innovation Solution

A display device that performs primary and secondary classification of nodes on a document object model (DOM) to identify clickable content, allowing voice-activated selection by monitoring DOM changes and prioritizing text selection based on screen presence and change detection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If users directly select content using a remote control, then content selection can be performed, but user convenience deteriorates and operation time increases

Engineering Contradiction:
Improvecontent selection convenienceVSAvoidcontent selection time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent replaces the mechanical remote control operation with a voice recognition system. The voice recognition unit captures user speech, the voice recognizer converts it to text, and the web voice matcher identifies matching content on the web screen, eliminating the need for manual remote control navigation and clicking.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a voice recognition system as an intermediary between the user and the content selection process. Instead of direct manual interaction, the voice command serves as a mediator that translates user intent into automated content selection actions.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If all text on web screen is treated as clickable, then voice matching can be performed, but accuracy deteriorates due to overlapping text

Engineering Contradiction:
Improveclickable content identification accuracyVSAvoidtext overlay information
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

The patent segments the web screen content into individual text elements and processes each through DOM node classification. It performs primary classification on all DOM nodes and secondary classification to determine screen presence, separating clickable from non-clickable text elements systematically.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements feedback through DOM change monitoring. When a text element is clicked or selected, the system monitors for DOM changes to verify the action was successful, and uses this feedback to adjust the matching process and avoid selecting overlapping non-clickable text.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11978448B2Display device and method of operating the same
Publication Date: 2024.05.07 LG ELECTRONICS INC
  • US11978448B2 patent drawing
  • US11978448B2 patent drawing
  • US11978448B2 patent drawing

AI summary

Disclosed is a display device capable of classifying clickable content in a web application screen, and the display device can perform primary classification on all nodes existing in a document object model (DOM) and perform secondary classification for determining whether a node exists in the screen.