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    • 2. 发明授权
    • System and method for performing location management using home subscriber server in VoIP service
    • 用于在VoIP服务中使用家庭用户服务器进行位置管理的系统和方法
    • US08165063B2
    • 2012-04-24
    • US11864048
    • 2007-09-28
    • Kwihoon KimHyun Woo LeeSeng Kyoun JoWon Ryu
    • Kwihoon KimHyun Woo LeeSeng Kyoun JoWon Ryu
    • H04W4/00H04L12/66G06F15/16
    • H04L29/06027H04L65/1006H04L67/18H04W4/02H04W8/04H04W8/18H04W60/00H04W64/00H04W80/10H04W88/14
    • Provided is a system and method for performing location management using a Home Subscriber Server (HSS) in a Voice over Internet Protocol (VoIP) service. The system includes a Session Initiation Protocol (SIP) terminal unit sending and receiving a SIP call, by which a VoIP telephone can be used, by being connected to a broadband VoIP network, an HSS controller having a Database (DB) storing an ID of a device which the SIP terminal unit initially accesses according to an access network to which the SIP terminal unit is connected in the broadband VoIP network, location information of the SIP terminal unit, which contains a location code and address of the device, and location information of a destination terminal to which the SIP terminal unit desires to connect, and a Call Session Control Function (CSCF) controller connecting the SIP terminal unit and the destination terminal in a VoIP telephone service using the location information stored in the HSS controller in the broadband VoIP network. Accordingly, a method of registering a location of a VoIP telephone and a location management service are provided, and a process of providing a short-distance call routing service in a representative number service, which is a location-based service, is suggested using the location registration method.
    • 提供了一种用于在因特网协议语音(VoIP)服务中使用归属订户服务器(HSS)来执行位置管理的系统和方法。 系统包括通过连接到宽带VoIP网络发送和接收可以使用VoIP电话的SIP呼叫的会话发起协议(SIP)终端单元,具有数据库(DB)的HSS控制器,所述数据库(DB)存储ID SIP终端单元根据在宽带VoIP网络中连接到SIP终端单元的接入网络初始接入的设备,SIP终端单元的位置信息,其中包含设备的位置代码和地址,以及位置信息 SIP终端单元希望连接的目的地终端的呼叫会话控制功能(CSCF)控制器,以及使用存储在HSS控制器中的位置信息在VoIP电话服务中连接SIP终端单元和目的地终端的呼叫会话控制功能(CSCF)控制器 VoIP网络。 因此,提供了一种注册VoIP电话和位置管理服务的位置的方法,并且使用基于位置的服务来提供在代表号码服务中提供短距离呼叫路由服务的过程,其是基于位置的服务 位置登记方式。
    • 6. 发明授权
    • Apparatus and method for assessing image quality in real-time
    • 实时评估图像质量的装置和方法
    • US08566690B2
    • 2013-10-22
    • US12966562
    • 2010-12-13
    • Ho Yeon LeeHyun Woo LeeWon RyuDong Gyu Sim
    • Ho Yeon LeeHyun Woo LeeWon RyuDong Gyu Sim
    • H04N7/64
    • H04N17/004
    • An apparatus and method for assessing image quality in real-time in consideration of both a coding error generated in an image processing process and a packet error generated in an image transmission process are provided. The apparatus for assessing image quality in real-time includes: an image quality measurement unit measuring image degradation generated in processing an image; a packet degradation detection unit detecting a packet error generated in transmitting the image; and final outcome drawing unit finally assessing the quality of the image in consideration of both a degradation degree of the image measured by the image quality measurement unit and the packet error measured by the packet degradation detection unit.
    • 提供考虑图像处理过程中产生的编码错误和图像传输处理中产生的分组错误来实时评估图像质量的装置和方法。 用于实时评估图像质量的装置包括:图像质量测量单元,测量在处理图像中产生的图像劣化; 分组劣化检测单元,检测在发送图像时产生的分组错误; 考虑到由图像质量测量单元测量的图像的劣化程度和由分组劣化检测单元测量的分组误差两者,最终结果绘制单元最终评估图像的质量。