Media Conversion Gateway for Interconnecting Heterogeneous Communication Terminals
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Solution Overview
Problem
Existing media conversion devices struggle to accurately discriminate and convert communication media standards between different communication terminal devices across multiple networks, leading to difficulties in interconnecting them effectively.
Innovation Solution
A media conversion device comprising a server and a media converter that uses control data to discriminate communication media standards based on a call control protocol, converting media data between terminal devices connected to different networks, and includes interfaces, a converter circuit, and a controller to manage data switching and conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a media conversion device is placed between different networks to interconnect terminal devices, then communication between terminal devices using different media standards is enabled, but the device cannot accurately discriminate communication media standards between source and destination terminal devices
Solution Approach 1:
The patent introduces a gateway device as an intermediary between terminal devices on different networks. This gateway device includes a media conversion unit that acts as a mediator to convert media data between different communication standards. The gateway device receives control data from terminal devices, discriminates the communication media standards using discrimination information, and performs appropriate media conversion, thereby enabling communication between incompatible terminal devices while accurately identifying their media standards.
2Device complexity
If media conversion is performed without accurate discrimination of communication media standards, then device complexity is reduced, but media conversion accuracy and communication reliability deteriorate
Solution Approach 1:
The patent implements preliminary action by storing discrimination information about communication media standards in advance within the gateway device. Before actual media conversion occurs, the gateway device uses this pre-stored information to accurately identify the communication media standards of terminal devices. This preliminary discrimination ensures that the correct conversion parameters are applied, maintaining high communication reliability without requiring complex real-time analysis during the conversion process itself.
Data Source
AI summary
A gateway device includes a SIP server and a media converter. The SIP server uses media communication control data output from communication terminal devices (CTDs) to discriminate the communication media standards adopted by the CTDs, based on a call control, to call-control the CTDs. The media converter uses the communication media standards discriminated and acquired to convert media data, delivered from the CTDs, involved in communication, to a signal of a relevant communication media standard. The SIP server causes the communication media standard and information used for communication to be stored in an information memory. The media converter includes input/output interfaces, a controller, a media converter circuit and a data switcher. The interfaces verify whether or not the received data is media data, the media converter circuit converts the communication media standard of received media data received from the source CTD to a communication media standard of the destination CTD.