Digital Device Remote Control via Unique Key Code Verification

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Solution Overview

Problem

Existing digital devices lack a convenient and simple method for remote control through external devices using radio signals, which complicates the activation and management of remote applications.

Innovation Solution

A digital device that transmits radio signals containing remote control information and receives remote control signals from external devices, using Wi-Fi or Bluetooth protocols, to automatically activate and manage remote applications based on signal strength, location, and unique key codes, preventing unintended application execution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If remote control is implemented through external devices using radio signals, then ease of operation is improved, but device complexity increases due to need for signal transmission, key code verification, and application activation management

Engineering Contradiction:
Improveremote control convenienceVSAvoidsystem structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent uses radio signals as an intermediary medium to transmit remote control information between external devices and the digital device. The signal includes key codes that act as mediators for identifying and activating specific remote applications, enabling convenient remote control without direct device interaction

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The digital device is designed to support multiple wireless communication protocols (Wi-Fi and Bluetooth) within a single system, allowing it to receive and process remote control signals from various external devices using different protocols. This multi-functionality enables universal remote control capability while managing complexity through protocol selection based on signal type

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If automatic application activation is implemented based on received signals, then productivity is improved by eliminating manual activation steps, but reliability decreases due to risk of unintended application execution

Engineering Contradiction:
Improveapplication activation speedVSAvoidapplication execution accuracy
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system performs preliminary verification by extracting and verifying key codes from received radio signals before activating remote applications. The key code matching process is executed in advance of application activation to ensure the correct application is selected, preventing unintended execution while maintaining automatic activation

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses key code verification as a feedback mechanism to confirm that the received signal corresponds to the intended remote application before activation. This feedback loop ensures reliability by validating the signal content matches the target application, preventing erroneous activation while maintaining automatic operation

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3190802B1Digital device and control method therefor
Publication Date: 2019.11.13 LG ELECTRONICS INC
  • EP3190802B1 patent drawingFigure 1
  • EP3190802B1 patent drawingFigure 2
  • EP3190802B1 patent drawingFigure 3

AI summary

A digital device and a control method therefor are disclosed, and provided are a digital device and a control method therefor, the digital device according to the present invention comprising: a communication module for transmitting remote control related information; a storage module for storing the remote control related information; and a controller for controlling an operation of the digital device, wherein the controller can transmit a wireless signal including the remote control related information, receive a remote control signal from an external device having received the wireless signal, and control an operation of the digital device according to the remote control signal if a key code included in the received remote control signal is a unique key code.