Seamless Content Switching via Local Area Device ID
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Solution Overview
Problem
Conventional multimedia broadcasting systems require additional processes for device location information exchange, such as PIN code exchanges, to enable seamless content reproduction across multiple devices in a home server environment, which complicates continuous streaming and reproduction.
Innovation Solution
A method and apparatus that allow seamless content reproduction by transmitting device IDs through local area communication, enabling the home server to switch streaming from one device to another, using IR communication for directivity, and managing device capabilities to ensure continuous multimedia content delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional location information exchange processes (such as PIN code exchange) are used for device communication, then device identification and location accuracy are improved, but system complexity and operation time are increased
Solution Approach 1:
The patent extracts and eliminates the complex PIN code exchange process from the communication protocol. Instead of requiring devices to perform location information exchange through multiple authentication steps, the system uses device IDs that are automatically obtained from the UPnP architecture, thereby simplifying the communication process while maintaining device identification capability
Solution Approach 2:
The patent introduces an intermediary mechanism where the UPnP architecture automatically provides device IDs as a mediator between devices. This intermediary eliminates the need for direct complex authentication protocols like PIN code exchange, allowing devices to communicate seamlessly through the existing UPnP framework without requiring additional location information exchange processes
2Measurement precision
If additional location information exchange processes are implemented, then device recognition accuracy is improved, but streaming continuity and system efficiency are worsened
Solution Approach 1:
The patent applies preliminary action by having devices obtain their device IDs in advance through the UPnP architecture before content streaming begins. This preliminary acquisition of device identification information eliminates the need for additional location information exchange during the streaming process, thereby maintaining streaming continuity and system efficiency while ensuring accurate device recognition
Solution Approach 2:
The patent ensures continuity of useful action by using device IDs that are already available from UPnP registration. This allows the system to maintain continuous content streaming without interruption for additional authentication or location verification processes, as the device identification is already established through the initial UPnP connection
3Ease of operation
If conventional network-based location information is used, then network communication is simplified, but physical space location expression capability is lost
Solution Approach 1:
The patent applies universality by using device IDs that serve multiple functions: they identify devices in the network, enable location-based services, and facilitate device recognition for content streaming. This multi-functional approach eliminates the need for separate network-based location information exchange processes while maintaining both network communication simplicity and physical location expression capability
Data Source
AI summary
A content reproducing method is provided for continuously reproducing content being reproduced by a client device in another client device in a multimedia data providing system including a server for providing content and a plurality of client devices for reproducing the content provided by the server. The method includes reproducing, by a first device, multimedia content being streamed by a content server; and transmitting, by the first device, a first request message for continuously reproducing content being reproduced by the first device in another device and an IDentification (ID) of the first device to another device using local area communication in order to continuously reproduce the content being reproduced by the first device in another device.