In-Vehicle Audio Metadata Registration for Unconnected Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing in-vehicle audio systems lack usability when multiple portable music terminals are unable to connect simultaneously, preventing the display and playback of music data from unconnected devices.
Innovation Solution
An in-vehicle audio device with metadata acquisition, registration, list creation, display, and playback output sections that register and display music data from multiple devices, including portable music carriers, even after communication connection is cut off, allowing selection and playback of tracks from unconnected devices via wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the in-vehicle audio device only displays music data from currently connected portable devices, then the system complexity is reduced, but the usability deteriorates because users cannot access music from unconnected devices
Solution Approach 1:
The in-vehicle audio device performs preliminary actions by acquiring and storing metadata from portable music carrier devices in advance, even when not currently connected. This allows the device to prepare a comprehensive list of available music data from multiple devices before the user needs to play anything, so that when a user selects a track, it can be played immediately without connection delays.
2Ease of operation
If the in-vehicle audio device maintains metadata registration after communication connection is cut off, then the usability is improved by allowing playback from unconnected devices, but the loss of information increases as metadata may become outdated
Solution Approach 1:
The system performs preliminary metadata acquisition and stores it for later use. By acquiring metadata in advance while the device is connected, the system prepares information that can be used even after disconnection, reducing the need for real-time connection maintenance while enabling playback functionality.
Solution Approach 2:
The in-vehicle audio device creates a copy of the metadata from portable music carrier devices and stores it locally. This copied metadata can be used for display and selection even when the original device is disconnected, allowing the system to maintain functionality without continuous connection to the source device.
3Adaptability or versatility
If the system acquires music data from unconnected portable devices, then the versatility is improved, but the waiting time increases affecting productivity
Solution Approach 1:
The system performs preliminary acquisition of metadata from portable devices in advance, storing it for future playback. This preparation work is done while the device is connected, so when the user wants to play music from an unconnected device, the metadata is already available immediately, eliminating waiting time during actual playback selection.
Solution Approach 2:
The system dynamically manages connection states by maintaining metadata from multiple devices with different connection statuses. It can switch between connected and previously connected devices seamlessly, adapting the data source based on current connection availability while maintaining continuous playback capability.
Data Source
AI summary
An in-vehicle audio device and an in-vehicle audio system are disclosed. The in-vehicle audio device acquires and registers metadata of music data from multiple music possession devices, at least one of which is a portable music carrier device capable of performing wireless communication. Regarding the metadata acquired from the portable music carrier device, the in-vehicle audio device maintains the registration of the metadata after a communication connection between the portable music carrier device and the in-vehicle audio device is cut off. The in-vehicle audio device creates a playlist based on the registered metadata.