Bridge Device Multi-Channel Communication System
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Solution Overview
Problem
Existing wireless communication systems for large conferences are cost-ineffective and prone to poor audio quality due to the need for multiple microphones and receivers, and interference from unassigned frequency bands, which increases signal noise and modulation distortion.
Innovation Solution
A communication system featuring a bridge device that manages multi-channel communications between a host terminal and participant terminals, using a broadcasting device to transmit processed signals only to the host terminal, reducing the need for multiple receivers and minimizing interference by using assigned frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple microphones and receivers are used to support large conference participants, then communication coverage is improved, but system cost and device complexity increase significantly
Solution Approach 1:
The patent combines multiple receiver functions into a single central signal processing unit. Instead of having one receiver per microphone, the system uses one signal processing unit that can handle multiple microphone inputs, thereby reducing the number of receivers needed and simplifying the overall system architecture while maintaining coverage for large conferences
Solution Approach 2:
The central signal processing unit is designed to perform multiple functions: it processes signals from multiple microphones, manages frequency allocation, and handles signal routing to multiple loudspeakers. This multi-functional design eliminates the need for separate dedicated receivers for each microphone, reducing system complexity while maintaining adaptability
2Ease of manufacture
If unassigned frequency band is used for signal transmission, then system setup is simplified, but signal noise and modulation distortion increase due to interference
Solution Approach 1:
The system dynamically assigns and changes frequency parameters for different microphone-receiver pairs. The signal processing unit allocates specific frequency bands to different microphones and ensures receivers tune to the correct frequencies, thereby avoiding interference while maintaining ease of setup through automated frequency management
3Adaptability or versatility
If more receivers are added to the signal processing unit to support more microphones, then communication coverage is improved, but system cost and signal processing unit size increase
Solution Approach 1:
The patent merges multiple receiver functions into a single centralized signal processing unit. This unit can process and differentiate signals from multiple microphones using frequency division multiplexing, thereby supporting more microphones without proportionally increasing the number of receivers needed
4Quantity of substance
If shared microphones are used among attendees, then system cost is reduced, but audio quality and convenience deteriorate
Solution Approach 1:
The system assigns different frequency characteristics to different microphone positions and participants. Each participant's signal is processed with specific frequency allocation, ensuring that even when microphones are shared or reused, each participant's audio quality is maintained through localized frequency optimization
Data Source
AI summary
A communication system comprises a bridge device being configured to manage multi-channel communications, a host terminal coupled to the bridge device through a first network, a participant terminal coupled to the bridge device through a second network, and a broadcasting device coupled to at least one of the host terminal and the bridge device for broadcasting at least one of the participant signals from the participant terminal and the host signals from the host terminal. The host terminal is configured to receive host signals and to transmit the host signals to the bridge device. The participant terminal is configured to receive participant signals and to transmit the participant signals to the bridge device. The bridge device is configured to receive the participant signals from the participant terminal and the host signals from the host terminal and transmit the participant signals from the participant terminal and the host signals from the host terminal only to the host terminal but not another participant terminal.