Wireless Speaker Transceiver Sniffing and ACK Mechanism
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Solution Overview
Problem
In wireless speaker systems, inefficiencies in data transmission occur when only the main speaker receives data from a source, leading to battery drain and synchronization issues, resulting in intermittent playback or silence during streaming or calls.
Innovation Solution
A system with a first transceiver establishing wireless links to both a data source and a second transceiver, enabling the second transceiver to sniff data packets from the source, and sending acknowledgments to ensure data integrity and efficient data distribution between speakers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only the main speaker receives data from the data source, then the system structure is simple, but the data transmission efficiency deteriorates and battery drains faster
Solution Approach 1:
The patent divides the data reception function between multiple speakers. The main speaker and sub speakers each receive data packets independently from the data source, segmenting the reception load. This allows parallel data acquisition, improving transmission efficiency while maintaining relatively simple individual speaker structures.
Solution Approach 2:
The patent combines the data reception capabilities of multiple speakers working together. Both the main speaker and sub speakers establish wireless links with the data source, merging their reception functions to achieve redundant and efficient data acquisition, resolving the contradiction between simple structure and transmission efficiency.
2Device complexity
If only the main speaker receives data from the data source, then the system configuration is simple, but the synchronization between speakers deteriorates
Solution Approach 1:
The patent implements an acknowledgment feedback mechanism where sub speakers send ACK packets to the main speaker when they successfully receive data. The main speaker uses this feedback to determine when all speakers have received the data packets, ensuring synchronized playback. This feedback loop maintains synchronization without requiring complex centralized control.
Solution Approach 2:
The patent uses sequence numbers assigned to data packets in advance. Each speaker can independently track which packets they have received by comparing sequence numbers, allowing them to pre-determine their reception status and coordinate synchronization without real-time complex negotiation.
3Reliability
If the main speaker re-transmits missing data to itself and then to other speakers, then data integrity is maintained, but the playback time is delayed
Solution Approach 1:
The patent assigns sequence numbers to data packets in advance before transmission. This preliminary numbering allows speakers to independently identify and track missing packets using the sequence information, enabling faster detection and retrieval of missing data without time-consuming real-time negotiation or re-transmission protocols.
Solution Approach 2:
The patent implements an acknowledgment (ACK) mechanism where sub speakers immediately notify the main speaker when they successfully receive data packets. This feedback allows the main speaker to quickly identify which speakers have which packets, enabling efficient targeted re-transmission of only missing data to specific speakers, minimizing overall synchronization time while maintaining data integrity.
4Device complexity
If the main speaker handles all data reception and distribution, then the system control is centralized and simple, but the battery consumption increases
Solution Approach 1:
The patent segments the data reception function across multiple speakers. Both main and sub speakers independently receive data packets from the data source, dividing the reception workload. This segmentation reduces the processing and re-transmission burden on the main speaker, lowering its battery consumption while maintaining simple centralized control through the acknowledgment mechanism.
Data Source
AI summary
A wireless speaker system includes a first transceiver and a second transceiver. The first transceiver is configured to establish a first wireless link with a data source for receiving a plurality of data packets, and to establish a second wireless link with a second transceiver for transmitting a set of parameters to the second transceiver to enable the second transceiver to sniff the plurality of data packets from the data source. The first transceiver is further configured to send a second acknowledgment to the data source via the first wireless link upon failure to receive the plurality of data packets from the data source via the first wireless link and upon receiving a first acknowledgment from the second wireless transceiver via the second wireless link.