Electronic Device Sound Mode Switching and Signal Mixing
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Solution Overview
Problem
Existing sound equipment, such as sound bars and Wi-Fi speakers, face limitations when used as individual sound devices due to size constraints and inability to provide a wide sound image, while also struggling with synchronization and sound disconnection issues when used in multi-channel configurations.
Innovation Solution
An electronic device with at least one speaker, a communication interface, and a processor that can switch between two modes: a first mode where it outputs specific channels to internal speakers and transmits others to external speakers, and a second mode where it mixes signals from internal and external speakers and transmits the mixed signal to external speakers, applying dynamic range control and filters to enhance voice clarity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multi-channel sound bar is used for family use, then wide sound image and simultaneous enjoyment by many people is achieved, but device size is large and movement is restricted
Solution Approach 1:
The patent divides the multi-channel sound system into separable components: a main body unit and multiple portable speaker units. This segmentation allows the system to provide wide sound coverage when assembled while enabling individual speakers to be moved freely or used independently as portable audio devices.
Solution Approach 2:
The patent designs the speaker units to serve dual functions: they can be connected to the main body for multi-channel family use providing wide sound image, or detached and used individually as portable speakers for personal use, thus achieving versatility across different usage scenarios.
2Ease of operation
If Wi-Fi speaker is used for individual use, then movement freedom and installation convenience is achieved, but sound image width is limited and enjoyment by many people is difficult
Solution Approach 1:
The patent enables multiple portable speaker units to be wirelessly connected and synchronized to work together as a multi-channel system, merging their capabilities to create a wide sound image suitable for family enjoyment while retaining the movement freedom of individual portable speakers.
3Speed
If responsiveness between input and output is increased for synchronization, then sound comes out faster, but sound disconnection occurs due to wireless communication environment
Solution Approach 1:
The patent performs preliminary actions by pre-synchronizing multiple speaker units with the main body before actual audio playback. This includes establishing wireless connections and timing relationships in advance, which ensures reliable synchronized operation during playback without disconnection issues.
Solution Approach 2:
The patent implements feedback mechanisms where the main body continuously monitors and adjusts the operation of connected speaker units, ensuring they remain synchronized and connected throughout audio playback, thereby preventing sound disconnection while maintaining responsiveness.
Data Source
AI summary
An electronic device including at least one speaker, a communication interface, and at least one processor that is connected with the at least one speaker and the communication interface and controls the electronic device. The processor, when the electronic device is in a first mode, may output one or more first channel signals included in a sound via at least one speaker and control the communication interface to transmit one or more second channel signals in the sound to at least one external speaker, and when the electronic device is in a second mode, mix at least one of the one or more first channel signals and the one or more second channel signals to thereby produce a mixed signal and control the communication interface to transmit the mixed signal to the at least one external speaker.