Portable Group Communication Device Full-Duplex Audio Mixing
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Solution Overview
Problem
Current communication devices are inadequate for group communication, as they often restrict conversation to one-to-one interactions, are not portable, lack full-duplex capability, and provide poor voice quality and limited range.
Innovation Solution
A portable, lightweight wireless communication device that enables full-duplex group communication among multiple users over long distances, using a radio frequency transceiver, application processor, audio codec, and digital signal processor to transmit and receive audio data simultaneously, allowing users to communicate while engaging in physical activities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cellular telephones are used for communication, then one-to-one communication is achieved, but group communication capability is lost
Solution Approach 1:
The communication system is segmented into group formation module, audio data transmission module, and audio output module. Each module handles specific functions independently, allowing group communication capability to be added without overwhelming complexity in the overall system.
Solution Approach 2:
The portable communication device is designed to perform multiple functions: one-to-one communication, group communication, audio mixing, and direct wireless transmission. This multi-functionality allows the device to adapt to different communication scenarios without requiring separate specialized devices.
2Adaptability or versatility
If two-way radio systems are used, then group communication is enabled, but full-duplex capability is lost
Solution Approach 1:
The system enables continuous simultaneous transmission and reception of audio data between multiple devices. Full-duplex communication allows all group members to speak and listen at the same time without taking turns, maintaining continuous useful action for all participants.
3Adaptability or versatility
If conference calling devices are used, then group communication is achieved, but portability is lost
Solution Approach 1:
The patent replaces the mechanical/infrastructure-dependent conference calling system with a wireless direct communication system. Audio data is transmitted directly between portable devices via wireless medium, eliminating the need for backbone networks while maintaining communication reliability through direct peer-to-peer connections.
4Ease of operation
If direct wireless audio transmission is implemented, then portability and simultaneous communication are improved, but voice quality and range may be limited
Solution Approach 1:
The system merges audio data from multiple sources directly at the receiving device without requiring central server processing. Each device receives and processes audio data independently, combining multiple audio streams locally. This approach maintains voice quality while enabling portable simultaneous group communication.
Data Source
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AI summary
A portable communication device comprises a user interface, one or more digital processors in electronic communication with the user interface, and at least one memory in electronic communication with the one or more digital processors, the one or more digital processors and the at least one memory collectively configured to implement simultaneous radio frequency voice communication between a user of the device and multiple other ones of the devices. The voice communication comprises: transmitting audio data corresponding to speech of the user to each of the other ones of the devices, receiving audio data from each of the other ones of the devices, and transmitting the received audio data to the user so as to direct to the user combined and simultaneous speech of users of each of the other ones of the devices.