Wireless Microphone Clock Synchronization via Receiver Signals
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Solution Overview
Problem
Existing wireless microphone systems lack flexibility in configuration and compatibility with various devices, limiting their adaptability to different use cases.
Innovation Solution
A modular wireless microphone system that allows interchangeable use of multiple microphones with the same receiver, using standardized data protocols for communication, and incorporating a synchronization technique to maintain clock accuracy across devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wireless microphone system uses fixed configuration and proprietary protocols, then device compatibility is limited, but system complexity is reduced
Solution Approach 1:
The patent implements standardized data protocols that enable the wireless microphone system to communicate with multiple types of devices (receivers, smartphones, tablets, computers) using common communication standards. This universality allows the system to adapt to different use cases and device configurations without requiring proprietary protocols for each device type, thereby improving device compatibility while maintaining manageable system complexity through standardized interfaces.
2Adaptability or versatility
If multiple microphones are used interchangeably with the same receiver, then system flexibility is improved, but clock synchronization difficulty increases
Solution Approach 1:
The patent implements a clock synchronization mechanism where the receiver transmits synchronization signals to microphones, and microphones adjust their audio clocks based on received synchronization information. This feedback loop ensures that when multiple microphones are interchangeably connected to the same receiver, their clocks remain synchronized, thereby enabling microphone interchangeability without compromising clock synchronization accuracy.
3Measurement precision
If microphones adjust their audio clock based on synchronization signals, then clock accuracy is improved, but processing complexity increases
Solution Approach 1:
The patent implements clock synchronization where microphones adjust their audio clocks based on synchronization signals received from the receiver before audio data transmission begins. This preliminary action ensures that clock accuracy is established in advance, allowing for precise audio synchronization without requiring complex real-time processing during audio transmission, thereby improving clock accuracy while keeping processing complexity manageable.
Data Source
AI summary
The present disclosure describes a wireless microphone system that allows one or more microphones to wirelessly communicate with a receiver. Additionally, the wireless microphone system may allow for a plurality of microphones to be used interchangeably with the receiver. To ensure communication between the receiver and the one or more microphones, the receiver may occasionally transmit a synchronization signal to the one or more microphones. In response to receiving the synchronization signal, at least one of the one or more microphones may determine that a clock of the at least one microphone is drifting from the master audio clock of the receiver. The at least one microphone may then adjust the microphone's audio clock to re-synchronize the audio clock of the microphone with the master audio clock of the receiver.