Wireless Display Antenna Feedback Through Compression-Based Signal States

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Solution Overview

Problem

Users face difficulties in intuitively setting optimal antenna arrangements for wireless connection quality and accurately assessing signal strength in wireless display systems due to lack of intuitive connection quality and signal strength feedback.

Innovation Solution

A wireless transmitting device with a compression chip, RF transmission interface, and processor that determines signal strength state based on compression ratio and transmits this information to a receiving device for display, along with guide images for antenna adjustment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional LED color or signal strength checking is used to assess wireless connection quality, then the system structure remains simple, but the user cannot intuitively perceive connection quality and set optimal antenna arrangement

Engineering Contradiction:
Improveintuitive perception of connection qualityVSAvoidaccuracy of signal strength reflection
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The patent implements a feedback mechanism where the transmitting device sends signal strength state information to the receiving device, which then displays this information through LEDs or screens. This closed-loop feedback enables users to intuitively perceive connection quality and adjust antenna arrangement accordingly, resolving the contradiction between ease of operation and information accuracy.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent uses color-coded LED indicators (e.g., green for strong signal, yellow for moderate, red for weak) to represent different signal strength states. This visual color-coding system makes connection quality immediately intuitive for users while maintaining accurate representation of the underlying signal measurements, effectively resolving the contradiction.

Inventive Principle:
Principle #32Color changes

2Measurement precision

If signal strength is measured conventionally, then the measurement process is simple, but obstacles between transmitting and receiving devices cause inaccurate signal strength reflection

Engineering Contradiction:
Improveaccuracy of signal strength stateVSAvoidcomplexity of signal strength determination
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces the compression ratio as an intermediary parameter to indirectly assess signal strength state. Instead of directly measuring signal strength which is affected by obstacles, the system uses the compression ratio (which correlates with signal quality) as a mediator to determine the signal strength state, thereby achieving accurate measurement while managing complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces direct signal strength measurement (mechanical/electrical measurement) with compression ratio analysis (data processing approach). This substitution allows for more accurate assessment of effective signal quality by focusing on the actual data transmission efficiency rather than raw signal strength, overcoming the problem of obstacle-induced measurement inaccuracies.

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

3Measurement precision

If detailed signal strength information is provided to users, then measurement precision improves, but the device complexity and information processing load increase

Engineering Contradiction:
Improveaccuracy of connection quality informationVSAvoidcomplexity of signal strength state determination
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent transforms the raw compression ratio parameter into a simplified signal strength state parameter (e.g., strong, moderate, weak categories). This parameter transformation maintains measurement precision by preserving the underlying accurate data while reducing the complexity of information processing and presentation, making the system both accurate and manageable.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12388541B2Wireless transmitting device and wireless display system
Publication Date: 2025.08.12 LG ELECTRONICS INC
  • US12388541B2 patent drawing
  • US12388541B2 patent drawing
  • US12388541B2 patent drawing

AI summary

The present disclosure allows a user to intuitively recognize wireless quality, and a wireless transmitting device according to an embodiment of the present disclosure comprises a compression chip configured to compress video data; a radio frequency (RF) transmission interface including a plurality of transmitting antennas and configured to transmit the compressed image data to a wireless receiving device; and a processor configured to: obtain a compression ratio of the video data, determine a signal strength state of a signal transmitted from the RF transmitting interface to an RF receiving interface of the wireless receiving device based on the obtained compression ratio, and transmit signal strength state information on the determined signal strength state to the wireless receiving device.