Wireless AV Image Processor Adaptive Compression

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Solution Overview

Problem

The increasing demand for high-resolution and high-quality video data in wireless audio/video (AV) systems poses challenges in efficiently transmitting high-capacity data while ensuring RF signal performance, interference cancellation, and power saving.

Innovation Solution

A device and method for processing and transmitting video data in a wireless AV system that adapts compression rates based on the presence or absence and characteristics of input data, such as resolution, to optimize transmission quality and efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If video data with higher resolution and higher picture quality is transmitted, then picture quality is improved, but data transmission capacity requirements increase

Engineering Contradiction:
Improvepicture qualityVSAvoiddata transmission capacity
Core Design Contradiction:
Manufacturing precisionVSQuantity of substance

Solution Approach 1:

The patent applies parameter changes by dynamically adjusting the picture compression rate based on the resolution and type of input signal. The controller detects the externally inputted signal characteristics and generates information related to the signal, which the picture processor uses to determine appropriate compression parameters. This allows the system to optimize the balance between picture quality and data transmission capacity by changing compression parameters adaptively rather than using fixed settings.

Inventive Principle:
Principle #35Parameter changes

2Device complexity

If a fixed compression rate is used for all input data, then device complexity is reduced, but transmission efficiency for different data types deteriorates

Engineering Contradiction:
Improvecompression controlVSAvoidtransmission efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent implements dynamics by making the picture compression rate adjustable and variable based on input signal characteristics. Instead of a static compression rate, the system dynamically changes the compression parameter according to the detected signal type and resolution. The controller continuously monitors externally inputted signals and adjusts compression settings in real-time, allowing the system to adapt to different data types (video vs. non-video) and resolutions, thereby optimizing transmission efficiency without requiring overly complex manual configuration.

Inventive Principle:
Principle #15Dynamics

3Speed

If compression rate is increased for non-video data, then data transmission speed is improved, but picture quality of video data deteriorates

Engineering Contradiction:
Improvedata transmission speedVSAvoidpicture quality
Core Design Contradiction:
SpeedVSManufacturing precision

Solution Approach 1:

The patent applies local quality by differentiating compression treatment based on the type of input data. The controller detects whether the externally inputted signal is video data or non-video data and generates corresponding information. The picture processor then applies appropriate compression rates locally tailored to each data type: higher compression rates for non-video data to improve transmission speed, and lower compression rates for video data to maintain picture quality. This localized approach allows optimal compression settings for each specific data category.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS11778264B2Device and method for processing and transmitting image data in wireless AV system
Publication Date: 2023.10.03 LG ELECTRONICS INC
  • US11778264B2 patent drawing
  • US11778264B2 patent drawing
  • US11778264B2 patent drawing

AI summary

The present invention relates to a device and a method for processing and transmitting image data in a wireless AV system. The present specification provides a device comprising: an external device interface unit configured to receive an external input signal including an actual image (an actual picture); a control unit connected to the external device interface unit and configured to detect the external input signal and produce information on the external input signal; an image processing unit connected to the control unit, receiving, from the control unit, at least one among the external input signal and the information on the external input signal, determining an image compressibility on the basis of the information on the external input signal, and outputting a compressed image based on the determined image compressibility; and a communication unit for transmitting the compressed image through a wireless channel.