Bluetooth Stereo Voice System Using Segmented Channel Transmission
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Solution Overview
Problem
Traditional Bluetooth audio technologies are unable to provide a stereo voice effect during voice communication, as they either rely on asynchronous connections that are not suitable for voice immediacy or synchronous connections that cannot handle stereo audio.
Innovation Solution
A Bluetooth voice communication system that includes a host device and two member devices, each capable of capturing and processing voice data to generate left and right channel voice data, which are then combined to create a stereo voice effect and transmitted using Bluetooth LE Audio technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If asynchronous connection-oriented (ACL) logical transport is used to transmit stereo audio data, then stereo sound effect is provided, but transmission immediacy is insufficient for voice communication
Solution Approach 1:
The patent divides the voice transmission into two separate channels (left channel and right channel), each transmitted independently through synchronous connection-oriented logical transport. This segmentation allows the system to maintain the immediacy of synchronous transmission while creating a stereo effect by processing the two channels differently at the receiving end.
2Speed
If synchronous connection-oriented (SCO) logical transport is used to transmit voice data, then transmission immediacy is met, but stereo voice effect cannot be realized
Solution Approach 1:
The patent adds a spatial dimension to the voice transmission by creating left and right channel versions of the same voice data. This dimensional transformation allows the system to maintain synchronous transmission for immediacy while providing stereo spatial separation for enhanced audio experience.
3Adaptability or versatility
If traditional Bluetooth technology is used for voice communication, then compatibility is maintained, but stereo voice effect is not provided
Solution Approach 1:
The patent makes the Bluetooth device capable of multiple functions by integrating both synchronous connection-oriented logical transport (for immediacy) and asynchronous connection-oriented logical transport (for stereo effect) within the same system. This allows a single device to adapt to different transmission requirements without adding significant complexity.
Data Source
AI summary
A Bluetooth voice communication system includes: a Bluetooth host device arranged to operably conduct voice communication with a remote device; a first Bluetooth member device arranged to operably generate a left-channel voice data according to sounds captured by a first sound receiving circuit, and arranged to operably utilize a first Bluetooth communication circuit to transmit the left-channel voice data to the Bluetooth host device; and a second Bluetooth member device arranged to operably generate a right-channel voice data according to sounds captured by a second sound receiving circuit, and arranged to operably utilize a second Bluetooth communication circuit to transmit the right-channel voice data to the Bluetooth host device. The Bluetooth host device generates a stereo voice data based on the left-channel voice data and the right-channel voice data, and utilizes a signal transceiver circuit to transmit the stereo voice data to the remote device.