Wireless Audio Mixer Using Bluetooth Piconet for Cable-Free Setup
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Solution Overview
Problem
Conventional mixer apparatus for audio signals from multiple music devices require cumbersome cable connections, limiting device placement and increasing setup complexity due to cable restrictions.
Innovation Solution
A wireless mixer apparatus that uses Bluetooth technology to communicate with multiple music devices, functioning as a master to receive and mix audio signals from slave devices, eliminating the need for cables and allowing flexible placement while controlling traffic efficiently through isochronous and broadcast communication procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cable connections are used to connect mixer apparatus to music apparatus, then reliable audio signal transmission is achieved, but device placement is restricted and setup becomes cumbersome
Solution Approach 1:
The patent replaces the mechanical cable connection system with a wireless communication system using Bluetooth technology. The mixer apparatus and music apparatus communicate audio signals wirelessly, eliminating the need for physical cable connections while maintaining reliable signal transmission. This substitution resolves the contradiction by providing placement flexibility without compromising connection reliability.
2Ease of operation
If wireless communication is used to connect mixer apparatus to music apparatus, then device placement flexibility is improved and cable labor is reduced, but communication efficiency and signal transmission reliability may be affected
Solution Approach 1:
The patent introduces Bluetooth wireless communication technology as an intermediary between the mixer apparatus and music apparatus. This intermediary enables reliable audio signal transmission without physical cable connections, achieving both setup simplicity and transmission reliability. The Bluetooth protocol ensures stable communication while allowing flexible device placement.
3Adaptability or versatility
If multiple music apparatus are connected to mixer apparatus, then audio mixing capability is enhanced, but cable management becomes more complex and time-consuming
Solution Approach 1:
The patent replaces the mechanical cable connection system with wireless Bluetooth communication, enabling multiple music apparatus to connect to the mixer apparatus simultaneously without physical cable management. This eliminates the time-consuming process of plugging and unplugging cables when adding or removing devices, while maintaining full multi-device audio mixing capability.
4Adaptability or versatility
If wireless communication is implemented between mixer apparatus and music apparatus, then cable-related restrictions are eliminated, but communication protocol complexity and traffic management requirements increase
Solution Approach 1:
The patent utilizes Bluetooth wireless communication technology, which is a universal standard already widely implemented in consumer electronics. By leveraging this existing multi-functional wireless protocol, the system achieves placement freedom while avoiding the need to develop custom complex communication protocols. The Bluetooth standard handles traffic management and connection protocols efficiently, reducing the burden on the audio mixing system.
Data Source
AI summary
A plurality of music apparatus 10 to 30 such as an electronic musical instrument and a microphone apparatus are connected by wireless to a mixer apparatus 40. A Bluetooth module is adopted as wireless communication means to construct a piconet with mixer apparatus 40 functioning as a master and music apparatus 10 to 30 functioning as slaves. Audio signals and MIDI data from music apparatus 10 to 30 are transmitted by wireless to mixer apparatus 40 through isosynchronous communication procedure using Bluetooth modules 11, 21, 31, 41. In mixer apparatus 40, with regard to the MIDI data, music tone signals based on the MIDI data are produced, whereafter the produced music tone signals and the aforesaid audio signals transmitted by wireless are mixed. Wiring by means of cables between a plurality of music apparatus and a mixer apparatus is abolished, thereby eliminating the cumbersomeness of wiring and the restrictions accompanying the wiring.