Image Display Audio Signal Format Switching for Wireless Stability
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Solution Overview
Problem
Existing image display apparatuses face challenges in stably outputting sound when connected wirelessly to external sound output devices, due to limitations in wireless connectivity and the need for simultaneous sound output.
Innovation Solution
The image display apparatus is equipped with a display, an audio output device, a wired interface for data exchange with external sound output devices, a wireless communication device for wireless data exchange, and a signal processing device that manages audio signals in various formats to ensure stable wireless transmission and simultaneous sound output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless transmission is used to connect the image display apparatus to an external sound output device, then installation convenience is improved, but transmission stability deteriorates
Solution Approach 1:
The system dynamically adjusts the audio signal format based on wireless transmission conditions. When retransmission requests exceed a reference value, the signal processing device switches from a first audio format to a second audio format, optimizing transmission stability while maintaining wireless connectivity convenience
Solution Approach 2:
The patent changes the audio signal format parameter in response to transmission conditions. By switching between different audio formats (first format and second format) based on retransmission request counts, the system adapts to varying wireless transmission qualities to ensure stable sound output
2Reliability
If the audio signal format is changed to improve transmission stability, then transmission reliability is improved, but audio quality may deteriorate
Solution Approach 1:
The system dynamically switches between audio formats based on real-time transmission conditions. The signal processing device monitors retransmission requests and adjusts the audio format accordingly, ensuring high audio quality when conditions permit and maintaining transmission stability when conditions deteriorate
Solution Approach 2:
The patent uses a second audio format as a fallback option that sacrifices some audio quality for transmission reliability. This second format is deployed only when necessary (when retransmission requests exceed the reference value), allowing the system to maintain high audio quality with the first format under normal conditions
Data Source
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AI summary
An image display apparatus is disclosed. The image display apparatus according to an embodiment of the present disclosure comprises: a display; an audio output device; an interface to exchange data with an external sound output device in a wired manner; a wireless communication device to exchange data with the external sound output device in a wireless manner; and a signal processing device to, in a simultaneous sound output mode and in a mode of wireless transmission to the external sound output device, output a first audio signal to the audio output device, and wirelessly transmit a second audio signal based on a first format, and, in response to a number of retransmission requests from the external sound output device being greater than or equal to a reference value, wirelessly transmit an audio signal based on a second format. Accordingly, it is possible to stably output sound through the external sound output device wirelessly connected to the image display apparatus