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    • 37. 发明授权
    • Method for reliable real-time multimedia streaming
    • 可靠的实时多媒体流的方法
    • US06275471B1
    • 2001-08-14
    • US09078065
    • 1998-05-12
    • Dennis BushmitchSarit Mukherjee
    • Dennis BushmitchSarit Mukherjee
    • H04J116
    • H04L65/607H04L1/1809H04L1/1851H04L1/1877H04L29/06027H04L65/80H04N7/17318H04N21/6125H04N21/6375H04N21/6437
    • A method is provided for reliable real-time data streaming in a multimedia delivery system. The system is implemented using a real-time protocol that is based on the well-known Real-time Transport Protocol (RTP) suite which provides a framework for implementing near real-time reliable data delivery over non real-time unreliable data link layer technologies (e.g., Ethernet). These protocols provide near real-time reliable or best feasible data streaming while utilizing best effort unreliable network services (e.g., Internet). Under the Reliable protocol, an entire data block, including any missing or lost data packets, is reconstructed from all of the individual data packets through the use of a selective negative acknowledgement (NACK) mechanism. In contrast, the Best Feasible protocol sacrifices some of the data packet's reliability by not retransmitting “late” packets. An additional timing parameter encapsulated in the NACK message will facilitate the determination of whether it is “feasible” to retransmit a missing data packet. A real-time identification technique has been incorporated into the format of each transmitted data packet that allows for the identification of both its sender and intended recipient(s) without having to call an underlying socket specific function.
    • 提供了一种用于多媒体传送系统中的可靠实时数据流的方法。 该系统使用基于众所周知的实时传输协议(RTP)套件的实时协议实现,该实时协议为通过非实时不可靠数据链路层技术实现近实时可靠的数据传送提供了框架 (例如,以太网)。 这些协议提供接近实时可靠或最佳可行的数据流,同时利用尽力而为的不可靠网络服务(例如因特网)。 在可靠协议下,通过使用选择性否定确认(NACK)机制,从所有单独的数据分组重构整个数据块,包括任何丢失或丢失的数据分组。 相比之下,最佳可行协议通过不重传“迟来”数据包来牺牲一些数据包的可靠性。 封装在NACK消息中的附加定时参数将有助于确定重传丢失的数据分组是否“可行”。 实时识别技术已经被并入到每个传输的数据分组的格式中,其允许对其发送者和预期接收者进行标识,而不必调用底层套接字特定的功能。
    • 40. 发明授权
    • Event moderation for event publishing environments
    • 事件发布环境的事件审核
    • US07289795B2
    • 2007-10-30
    • US11159057
    • 2005-06-22
    • Yue MaDennis Bushmitch
    • Yue MaDennis Bushmitch
    • H04M3/42H04M3/00H04L29/08
    • H04L65/1006H04L29/06027H04L67/14H04L67/16
    • An event moderating architecture is provided for exporting event notification messages from an event publishing environment. The event moderating architecture includes: a mobile network device residing outside of the event publishing environment and operable to formulate a subscription request for receiving event notification messages; and an event moderation module adapted to receive the subscription request from the mobile network device and translate the subscription request into a subscription with the event publishing environment. The event moderation module receives a subset of event notification messages from the event publishing environment and forwards select event notification messages in accordance with the subscription request to the mobile network device.
    • 提供事件调节架构用于从事件发布环境导出事件通知消息。 事件调节架构包括:移动网络设备驻留在事件发布环境之外并且可操作以制定用于接收事件通知消息的订阅请求; 以及适于从所述移动网络设备接收所述订阅请求并将所述订阅请求转换为与所述事件发布环境的订阅的事件审核模块。 事件审核模块从事件发布环境接收事件通知消息的子集,并根据向移动网络设备的订阅请求转发选择事件通知消息。