Wireless Audio Transmission for Multimedia Television
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Solution Overview
Problem
The complexity and aesthetic issues caused by lengthy connecting lines between loudspeakers in multimedia systems, such as 5.1-channel stereos, make them inconvenient to use and visually unpleasing.
Innovation Solution
A multimedia system that wirelessly transmits audio signals between an audio processing/controlling device and loudspeakers, using a receiver, video playback apparatus, audio processing/controlling device, mixing device, transmitting device, and antennas to process and transmit multi-channel audio signals to corresponding loudspeakers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If connecting lines are used to connect loudspeakers in a multimedia system, then audio signals can be transmitted between devices, but the connecting lines become complicated and inconvenient for users
Solution Approach 1:
The patent replaces the mechanical connection system (physical connecting lines between audio processing device and loudspeakers) with a wireless transmission system using electromagnetic waves. The audio processing device transmits audio signals wirelessly to the loudspeakers, eliminating the need for physical cables and connectors, thus improving user convenience while maintaining reliable audio signal transmission.
2Reliability
If connecting lines are used to connect loudspeakers in a multimedia system, then audio signals can be transmitted between devices, but the connecting lines with considerable length are not pleasing to the eye
Solution Approach 1:
The patent eliminates the visible mechanical connection lines by substituting them with wireless electromagnetic transmission. This removes the aesthetic problem of long, visible cables while preserving the audio signal transmission function, thereby improving the overall appearance and visual appeal of the multimedia system.
3Reliability
If connecting lines are used to connect loudspeakers in a multimedia system, then audio signals can be transmitted between devices, but the complicated connecting lines make users inconvenient
Solution Approach 1:
The patent simplifies the system by replacing the complex mechanical connection infrastructure (multiple cables, connectors, and physical routing) with a wireless transmission system. This reduces the overall system complexity while maintaining reliable audio signal transmission between the audio processing device and loudspeakers.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Eliminates the need for cumbersome connecting lines, providing a more convenient and aesthetically pleasing setup for multi-channel audio systems by enabling wireless audio signal transmission.
Implementation Method 1
The transmitting device receives the at least one mixed audio signal from the mixing device and transmits the at least one mixed audio signal via the first antenna
Implementation Method 2
The receiving device receives the at least one mixed audio signal via the second antenna
Data Source
AI summary
A multimedia television is provided. The multimedia television includes a video playback apparatus, an audio processing device, M front loudspeakers, a rear audio playback apparatus, and a mixing device. The video playback apparatus is used for displaying a video signal. The audio processing device processes an audio signal into a multi-channel audio signal consisting of M front sub-audio signals and N rear sub-audio signals. Each front loudspeaker plays back one corresponding front sub-audio signal. And, the mixing device mixes the N rear sub-audio signals into a mixed audio signal, which is then wirelessly transmitted to the rear audio playback apparatus. After the mixed audio signal is processed into N rear sub-audio signals, N rear loudspeakers in the rear audio playback apparatus playback the N rear sub-audio signals.