Synchronized Content Reproduction Across Vehicles
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Solution Overview
Problem
Existing information sharing systems fail to effectively synchronize the experience of music or content reproduction among multiple users traveling in separate vehicles, leading to a lack of shared emotional uplift and cohesion during shared experiences.
Innovation Solution
An information sharing system that includes a post reception unit, content reproduction unit, joining request reception unit, and joining mode acquisition unit, allowing users to synchronize content reproduction across terminal devices based on user-defined joining modes, with specific modes for driver and passenger settings to manage output accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If data for reproduction of the same musical piece is transmitted to the terminal devices of the plurality of users, then each user can recognize that another user is requesting the musical piece, but the experience of the entire users is not always shared depending on reproduction timing of each user
Solution Approach 1:
The patent merges multiple terminal devices into a synchronized reproduction system where one device acts as the master and others as slaves. The master device's reproduction timing is shared with slave devices, ensuring all users experience the same content at the same time despite being in different vehicles. This combining approach unifies the reproduction timing across distributed devices.
Solution Approach 2:
The system implements feedback by having the master device share its reproduction timing information with slave devices. The slave devices receive timing feedback from the master and adjust their reproduction accordingly. This feedback mechanism ensures synchronized playback across all users' terminal devices, resolving the timing discrepancy issue.
2Reliability
If users in multiple vehicles want to share content reproduction experience, then synchronization mechanism is needed, but this increases system complexity and requires additional communication protocols
Solution Approach 1:
The system segments the reproduction system into master and slave terminal devices with clearly defined roles. The master device is responsible for initiating reproduction and sharing timing information, while slave devices receive and follow the master's timing. This segmentation simplifies the overall system architecture by dividing functions into distinct, manageable components.
Solution Approach 2:
The master terminal device acts as an intermediary between the content source and the slave devices. It receives or generates the content and redistributes it with timing information to slave devices. This intermediary approach simplifies communication protocols by centralizing the coordination function in the master device, reducing the complexity of direct peer-to-peer synchronization.
3Reliability
If all terminal devices output content simultaneously, then all users experience the same content together, but this may cause audio conflict or disturbance in shared physical spaces
Solution Approach 1:
The patent applies local quality by allowing different output behaviors for different terminal devices based on their operating context. The system determines whether each device should output audio based on local conditions (e.g., whether it's a driver or passenger device, vehicle audio system status). This enables synchronized experience without mandatory simultaneous audio output from all devices, preventing audio conflicts in shared spaces.
Solution Approach 2:
The system dynamically adjusts the output behavior of terminal devices based on real-time conditions. Rather than forcing all devices to output simultaneously, the system can adaptively control which devices output audio content based on the reproduction timing and local environment. This dynamic approach maintains synchronized experience while avoiding audio conflicts.
Data Source
AI summary
An information sharing system includes a processor that receives and stores a post from a user group, outputs content of the post to a terminal device of a user, receives a joining request regarding synchronous output of the content, from the user, and acquires specification of a joining mode of the terminal device in the synchronous output, the processor makes, based on a reproduction operation in the terminal device of the user from whom the joining request is received, the terminal devices of all the users from whom the joining request is received synchronously output the content, establishes communication between the terminal device and equipment of a vehicle when the specification of a driver mode is acquired as the joining mode, and outputs the content to the equipment.