Audio Network Interface Device Integrating Analog and Digital Microphones
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing audio network interface devices in conference systems face challenges in seamlessly integrating various types of analog and digital microphones and audio devices without requiring additional interface hardware, and in providing reliable phantom power and efficient signal conversion.
Innovation Solution
The audio network interface device features a housing with multiple electrical connectors, including general-purpose inputs and outputs, network connectors for data and power, a processing system for signal conversion, and an internal power supply derived from the data network, enabling the connection and power supply to microphones, as well as daisy-chaining capabilities for expanded functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple types of analog and digital microphones are integrated into a single audio network interface device, then device versatility is improved, but device complexity increases
Solution Approach 1:
The audio network interface device incorporates multiple electrical connectors that support different microphone types (analog, digital, omnidirectional, bidirectional, unidirectional) within a single device housing, allowing one device to perform multiple functions that would traditionally require separate interface devices for each microphone type
Solution Approach 2:
The device combines phantom power supply circuitry, analog-to-digital conversion processing, multiple connector types, and network interface functionality into a single integrated unit, merging what would traditionally be separate components into one consolidated device
2Adaptability or versatility
If phantom power is provided to microphones through the electrical connectors, then microphone compatibility is improved, but power management complexity increases
Solution Approach 1:
The electrical connectors are designed to provide both audio signal transmission and phantom power delivery through the same interface, allowing the connectors to serve dual functions and eliminating the need for separate power connection interfaces
3Manufacturing precision
If analog signals are converted to digital signals through the processing system, then audio quality is improved, but processing requirements increase
Solution Approach 1:
The processing system acts as an intermediary component that receives analog signals from microphones, converts them to digital format through analog-to-digital conversion, and transmits the digital signals over the network, bridging the gap between analog audio sources and digital network infrastructure
4Ease of operation
If power is derived from the data network for the internal power supply, then device installation simplicity is improved, but power availability constraints increase
Solution Approach 1:
The device derives its own operating power directly from the data network connection through Power over Ethernet (POE) capability, eliminating the need for separate power cables or power adapters and allowing the device to power itself using the existing network infrastructure
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
This solution allows for the efficient integration of multiple microphones and audio devices, providing phantom power and converting analog signals to digital, thereby enhancing audio system flexibility and reducing the need for additional hardware while maintaining high audio quality.
Implementation Method 1
an internal power supply that is configured to derive power from the data network connected via the first network connector
Implementation Method 2
a processing system that is configured to cause the conversion of input signals from a microphone that is connected to a set of electrical connectors, to digital output signals
Implementation Method 3
a microphone phantom power source that is configured to provide phantom power to a microphone that is connected to a set of electrical connectors
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
Audio network interface devices that are configured to be used with different types of microphones, and analog or digital audio devices. There is a housing that carries at least one set of electrical connectors adapted to be electrically connected to a microphone or audio device. The microphone connector including at least one general purpose input, at least two general purpose outputs and DC power. There is a first network connector that is adapted to provide connection to a data network, and a second network connector that is adapted to provide connection to a different electronic device. A microphone phantom power source is configured to provide phantom power to a microphone that is connected to a set of electrical connectors. A processing system is configured to cause the conversion of input and output signals from/to a microphone or other audio device that is connected to a set of electrical connectors, to/from digital output signals that are provided to the first network connector. An internal power supply is configured to derive power from the data network connected via the first network connector, and provide derived power to the microphone phantom power source, DC power to a microphone connector, and the processing system.