Universal Audio Interface for Analog and Digital Microphones
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Solution Overview
Problem
Conventional electronic systems require separate 3-contact and 4-contact audio jack connectors to accommodate both analog and digital microphones, leading to increased dimensions and production costs.
Innovation Solution
An audio interface with a common connector that uses a decision circuit to selectively connect either an analog or digital readout circuit based on the type of microphone plugged in, utilizing a detection unit and switching unit to determine the microphone type and send appropriate signals, allowing for the acquisition of both analog and digital audio signals through a single connector.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate 3-contact and 4-contact audio jack connectors are provided to accommodate analog and digital microphones, then compatibility with different microphone types is achieved, but dimensions and production costs of the electronic system increase
Solution Approach 1:
The patent implements a universal 4-contact audio jack connector that can accommodate both analog microphones (3-contact plug) and digital microphones (4-contact plug). The connector is designed with all necessary contact points and circuitry to handle both microphone types through a single interface, eliminating the need for separate dedicated connectors for each microphone type.
Solution Approach 2:
The patent merges the functionality of separate 3-contact and 4-contact audio jack connectors into a single 4-contact connector. By combining the analog audio signal paths with the digital audio signal paths in one unified connector structure, the system reduces the total number of connectors while maintaining full compatibility with both microphone types.
2Adaptability or versatility
If separate 3-contact and 4-contact audio jack connectors are provided, then both analog and digital microphones can be connected, but production costs increase
Solution Approach 1:
The universal 4-contact audio jack connector is designed to serve multiple functions by supporting both analog and digital microphone connections through a single component. This multi-functional design reduces the bill of materials and assembly complexity, thereby lowering production costs while maintaining full microphone type support.
Solution Approach 2:
By merging the analog and digital microphone connection capabilities into a single connector type, the patent reduces manufacturing complexity. The unified connector design allows for standardized production processes and inventory management, reducing overall production costs compared to manufacturing and managing separate connector types.
Data Source
AI summary
The invention provides an audio interface device and method to acquire audio signal from either an analog or digital microphone through a common connector. The audio interface comprises a connector, electrically connected with a microphone plugged thereinto, an analog readout circuit, acquiring an analog audio signal from an analog microphone, a digital readout circuit, acquiring a digital audio signal from a digital microphone, and a decision circuit, selectively connecting the analog or digital readout circuit to the connector to acquire the analog or digital audio signal respectively according to whether the microphone plugged into the connector is analog or digital.