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    • 94. 发明申请
    • METHOD AND SYSTEM FOR EFFICIENT VIDEO COMPRESSION WITH LOW-COMPLEXITY ENCODER
    • 低复杂度编码器高效视频压缩的方法与系统
    • US20090122868A1
    • 2009-05-14
    • US11939882
    • 2007-11-14
    • Jun ChenDake HeAshish JagmohanLigang LuVadim Sheinin
    • Jun ChenDake HeAshish JagmohanLigang LuVadim Sheinin
    • H04N7/26
    • H04N19/149H03M7/30H04N19/395H04N19/46H04N19/61
    • Disclosed are a method and system for video compression, wherein the video encoder has low computational complexity and high compression efficiency. The disclosed system comprises a video encoder and a video decoder, wherein the method for encoding includes the steps of converting a source frame into a space-frequency representation; estimating conditional statistics of at least one vector of space-frequency coefficients; estimating encoding rates based on the said conditional statistics; and applying Slepian-Wolf codes with the said computed encoding rates. The preferred method for decoding includes the steps of; generating a side-information vector of frequency coefficients based on previously decoded source data, encoder statistics, and previous reconstructions of the source frequency vector; and performing Slepian-Wolf decoding of at least one source frequency vector based on the generated side-information, the Slepian-Wolf code bits and the encoder statistics.
    • 公开了一种用于视频压缩的方法和系统,其中视频编码器具有低计算复杂度和高压缩效率。 所公开的系统包括视频编码器和视频解码器,其中用于编码的方法包括以下步骤:将源帧转换成空间频率表示; 估计至少一个空 - 频系数矢量的条件统计; 基于所述条件统计估计编码率; 以及使用所述计算的编码速率的Slepian-Wolf码。 优选的解码方法包括以下步骤: 基于先前解码的源数据,编码器统计量和源频率向量的先前重建来生成频率系数的侧信息向量; 并且基于所生成的侧信息,Slepian-Wolf码比特和编码器统计,对至少一个源频率向量执行Slepian-Wolf解码。
    • 97. 发明授权
    • Integrate network switching system
    • 集成网络交换系统
    • US07319693B2
    • 2008-01-15
    • US10469195
    • 2001-02-26
    • Jun Chen
    • Jun Chen
    • H04L12/66
    • H04L12/2898
    • This invention discloses an integrated exchange system for the terminal edge network connections. The integrated exchange system, comprising an IP packet based switch system and a telephony executive engine, is capable to execute IP and non-IP communication protocols, which puts LAN, WAN, PSTN and POTS together to offer the data network functionalities of Ethernet switch, route, gateway, firewall, VPN tunnel, and voice communication functionalities of IP-PBX, voice mail box, computer telephony and call center.
    • 本发明公开了一种用于终端边缘网络连接的集成交换系统。 集成交换系统,包括基于IP分组的交换机系统和电话执行引擎,能够执行IP和非IP通信协议,将LAN,WAN,PSTN和POTS放在一起,提供以太网交换机的数据网络功能, 路由,网关,防火墙,VPN隧道和IP-PBX,语音信箱,计算机电话和呼叫中心的语音通信功能。