Three-Channel Audio Switching for Private Multi-Party Calling
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Solution Overview
Problem
Current audio switching devices lack the capability for three-party listening and calling functions, limiting their functionality to one-to-one communication.
Innovation Solution
An audio switching device with a communication module and processing circuit that allows for the simultaneous connection of three audio channels, enabling three-way calling and the option for one-to-one calling, with modes to enhance privacy and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current audio switching devices provide one-to-one calling functions, then the device complexity is low, but the adaptability is limited and cannot achieve three-party listening and calling
Solution Approach 1:
The audio switching device is designed to perform multiple calling functions through a single device. It can operate in one-to-one calling mode and three-way calling mode, allowing the same device to serve different communication scenarios without requiring separate devices for each function, thereby improving adaptability while managing complexity through integrated design
Solution Approach 2:
The device employs dynamic switching capabilities where the connection topology between audio channels can be changed during operation. The processing circuit can dynamically reconfigure which audio channels are connected to each other, enabling the device to transition between one-to-one and three-way calling modes based on real-time communication needs
2Adaptability or versatility
If three audio channels are provided for three-way calling, then the adaptability is improved, but the device complexity increases due to multiple chips and processing circuits
Solution Approach 1:
The audio switching device is divided into multiple functional modules, each handled by separate chips. The first chip manages the first audio channel, the second chip manages the second and third audio channels, and the processing circuit coordinates between chips and handles the switching logic. This segmentation allows complex functionality to be distributed across multiple simpler components, making the overall system more manageable
Solution Approach 2:
The processing circuit acts as an intermediary between the multiple chips and audio channels. It receives control signals, determines the appropriate connection topology based on the calling mode, and coordinates the switching actions between different audio channels and external devices, thereby simplifying the control complexity of managing multiple channels
3Adaptability or versatility
If audio channels are connected to allow three-way calling, then communication versatility is improved, but user privacy may be compromised if audio is played publicly
Solution Approach 1:
The device supports dynamic configuration of audio routing where, in three-way calling mode, each external device can be configured to receive audio privately through its dedicated audio channel rather than broadcasting to all devices. The processing circuit can route audio signals selectively to specific channels based on the calling configuration, enabling private communication even when multiple devices are connected
Data Source
AI summary
An audio switching device is provided. The audio switching device includes a communication module. The communication module is configured to provide a first audio channel, a second audio channel and a third audio channel. The first audio channel is configured to communicatively connect to a first external device, the second audio channel is configured to communicatively connect to a second external device, and the third audio channel is configured to communicatively connect to a third external device. When the audio switching device is operated in a first mode, the first audio channel, the second audio channel and the third audio channel are communicatively connected to each other, so as to allow a three-way calling.