Asynchronous Audio Signal Synchronization and Multiplexing
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Solution Overview
Problem
Existing digital video recorder systems face challenges in synchronizing asynchronous digital signals from different sources, leading to increased requirements for connection terminals and higher costs due to noise and clock differences during signal transmission.
Innovation Solution
The method involves using audio and video synchronizers to synchronize asynchronous signals from different input devices and then multiplexing them using time-division multiplexing, reducing the number of connection terminals needed for transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If asynchronous signals from different input devices are transmitted separately, then signal integrity is maintained, but the number of connection terminals increases
Solution Approach 1:
The patent combines multiple asynchronous audio signals into a single time-division multiplexed signal. The audio synchronizer receives multiple asynchronous audio signals from different input devices, synchronizes them, and multiplexes them into one composite signal that can be transmitted through a single connection terminal to the audio processing device.
Solution Approach 2:
The audio synchronizer acts as an intermediary device between the multiple input devices and the audio processing device. It performs synchronization and time-division multiplexing of the asynchronous audio signals, converting them into a single synchronized multiplexed signal that can be processed by the audio processing device.
2Ease of operation
If multiple connection terminals are used to transmit asynchronous signals, then signal transmission is straightforward, but production and management costs increase
Solution Approach 1:
The patent merges multiple separate signal transmission paths into a single time-division multiplexed transmission path. By combining multiple asynchronous audio signals into one multiplexed signal, the system reduces the number of connection terminals required, thereby lowering production and management costs while maintaining ease of operation.
3Device complexity
If asynchronous signals are transmitted without synchronization, then device complexity is reduced, but signal processing quality deteriorates
Solution Approach 1:
The audio synchronizer performs preliminary synchronization and time-division multiplexing of asynchronous audio signals before they reach the audio processing device. This preliminary processing ensures that the signals are properly synchronized and formatted, improving signal processing quality without requiring complex synchronization processing at the audio processing device.
Data Source
AI summary
The present invention relates to a method for transmitting a plurality of asynchronous signals, which includes: transmitting to a plurality of audio synchronizers a plurality of asynchronous audio signals which is detected by different audio input devices and is not synchronized with each other; synchronizing, by the plurality of audio synchronizers, the plurality of asynchronous audio signals, respectively; and multiplexing, by a multiple-channel time-division multiplexer, the plurality of synchronized audio signals to a multiple-channel time-division audio signal.