Abstract: Provided are a system and method for remotely providing a video service among a plurality of participants exposed to a multi-camera environment by a server. The method includes receiving first participant videos from two or more cameras of a first participant, receiving second participant videos from at least one camera of a second participant, and transmitting the first participant videos to a second participant terminal and transmitting the second participant videos to a first participant terminal to output all the first and second participant videos to the first and second participants. The first or second participant videos are changed by an input manipulation made through at least one of the first participant terminal and the second participant terminal and output to the first and second participants.

Abstract: Provided is a method of allowing a user to participate in a video conference using a quick response (QR) code, which is a method performed by a server connected to a plurality of participant terminals and a user terminal via a wired/wireless network, the method including: generating a conference session with the plurality of participant terminals to initiate the video conference; generating identification information for identifying the video conference so that the user terminal is allowed to access the video conference; transmitting the identification information to a participant intermediary terminal that is one of the plurality of participant terminals; and upon recognizing, by the user terminal, a QR code output on the participant intermediary terminal, allowing the user terminal to participate in the video conference.

Abstract: Disclosed herein are a cryptocurrency trading system and method. The cryptocurrency trading system includes: a first matching server configured to generate a transaction pair by matching an order requesting a cryptocurrency transaction with another order to be concluded in conjunction with the former order in order to process the former order; and a coordination device configured to add the first matching server to the cryptocurrency trading system. When the first matching server fails, the coordination device registers a second matching server and allows the second matching server to process the former order.

Abstract: Disclosed herein are a cryptocurrency trading system and method. The cryptocurrency trading system includes: a first matching server configured to generate a transaction pair by matching an order requesting a cryptocurrency transaction with another order to be concluded in conjunction with the former order in order to process the former order; and a coordination device configured to add the first matching server to the cryptocurrency trading system. When the first matching server fails, the coordination device registers a second matching server and allows the second matching server to process the former order.

Abstract: The subject disclosure relates to a method and apparatus for routing data in a network-based computer game via proxy computers. The method and system includes a set of techniques that utilizes the proxy computers to thwart traffic analysis in high-speed games while continuing to satisfy the games' latency requirements. The method and apparatus facilitates thwarting multiple classes of traffic analysis, including inspection of unencrypted header fields, observation of packet size, correlation of packet timing, and collusion among players. A matchmaking system for matching players in a network-based computer game in a manner that resists traffic analysis is also provided.

Abstract: The subject disclosure relates to a method and apparatus for routing data in a network-based computer game via proxy computers. The method and system includes a set of techniques that utilizes the proxy computers to thwart traffic analysis in high-speed games while continuing to satisfy the games' latency requirements. The method and apparatus facilitates thwarting multiple classes of traffic analysis, including inspection of unencrypted header fields, observation of packet size, correlation of packet timing, and collusion among players. A matchmaking system for matching players in a network-based computer game in a manner that resists traffic analysis is also provided.