Audio Device Wake-Up Signal for Video-Audio Sync
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a time lag between turning on a display device and the corresponding audio output from an audio device connected via Bluetooth or Wi-Fi, leading to potential data loss in audio streaming.
Innovation Solution
An electronic device and an audio device are designed to include a communicator and a controller that transmit a wake-up signal to initiate an audio output preparing operation in the audio device as soon as the display device is powered on, allowing the audio device to prepare for output before the display device is fully booted, thus eliminating the delay and preventing data loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the audio device waits for the display device to fully boot before initiating audio output preparation, then the system ensures stable connection establishment, but the audio output is delayed causing time lag and potential data loss
Solution Approach 1:
The audio device initiates audio output preparation operations in advance before the display device fully boots. The controller receives a wake-up signal during the boot process and starts preparing audio output functions, including establishing Bluetooth connections and loading audio processing modules, before actual audio data needs to be output. This preliminary action eliminates the time lag between display boot and audio output while ensuring connection stability is established during the preparation phase.
2Use of energy by moving object
If the audio device enters standby state with minimal power consumption, then energy efficiency is improved, but the device cannot quickly respond to audio output requests
Solution Approach 1:
During the display device boot process, the audio device receives wake-up signals and initiates audio output preparation operations in advance. This includes pre-establishing Bluetooth connections, loading audio processing modules, and preparing output channels before actual audio playback is needed. This allows the audio device to maintain low power standby state while still achieving fast response when audio output is actually required.
Solution Approach 2:
The system implements a wake-up signal mechanism where the display device sends signals to the audio device during its boot process. The audio device's controller monitors for these wake-up signals and triggers preparation operations accordingly. This feedback mechanism allows the audio device to intelligently activate preparation functions only when needed, balancing power consumption with response speed requirements.
Data Source
AI summary
Provided is an electronic device. The electronic device includes a communicator that wirelessly connects the electronic device to an external device, and a controller that controls the communicator and transmits a wake-up signal to the external device, in response to an input to turn on the power of the electric device, to instruct the external device in a standby state to initiate an audio output preparing operation. The standby state corresponds to a state in which the external device attempts to establish a connection.