公开(公告)号：US20150208268A1

公开(公告)日：2015-07-23

申请号：US14541846

申请日：2014-11-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ki Jong KOO ,  Hyun Joo BAE ,  Byung Sun LEE

IPC: H04W24/10 ,  H04L29/06 ,  H04L5/00

CPC classification number: H04W24/10 ,  G10L19/24 ,  H04L1/0014 ,  H04L1/0015 ,  H04L1/0017 ,  H04L5/0057 ,  H04L65/80 ,  H04W28/22 ,  H04W80/04 ,  H04W88/181

Abstract: A method of controlling the codec mode of a convergence internet protocol (IP) network and a terminal using the method are provided. The terminal may include a variable bit-rate/mode codec controller including a channel status measurement and management (CSMM) unit which measures the status of a wireless channel and provides the results of the measuring of the wireless channel status as channel quality information, and which measures the transfer performance of a received packet and provides the results of the measuring of the packet transfer performance as packet measurement parameter information, and a service quality control (SQC) unit which measures the quality of a multimedia service based on the channel quality information and the packet measurement parameter information, provides the results of the measuring of the multimedia service quality as service quality information and determines a codec mode of the terminal or a counterpart terminal communicating with the all-IP terminal based on the service quality information. Therefore, it is possible to improve the quality of multimedia services.

Abstract translation: 提供了一种使用该方法来控制融合因特网协议（IP）网络和终端的编解码器模式的方法。 终端可以包括可变比特率/模式编解码器控制器，其包括测量无线信道的状态并将测量无线信道状态的结果作为信道质量信息的信道状态测量和管理（CSMM）单元，以及 其测量接收到的分组的传送性能，并将分组传输性能的测量结果作为分组测量参数信息，以及基于信道质量信息测量多媒体服务的质量的服务质量控制（SQC）单元 和分组测量参数信息，将多媒体服务质量的测量结果作为服务质量信息提供，并且基于服务质量信息确定终端或与全IP终端通信的对方终端的编解码器模式。 因此，可以提高多媒体业务的质量。

公开(公告)号：US20130268267A1

公开(公告)日：2013-10-10

申请号：US13857556

申请日：2013-04-05

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： In Ki HWANG ,  Chang CHOO ,  Byung Sun LEE

IPC: G10L21/0208

CPC classification number: G10L21/0208 ,  G10L2021/02082

Abstract: Disclosed is an apparatus for cancelling a wideband acoustic echo, the apparatus including a determining unit to determine whether a monitor coefficient value obtained by dividing a Near-End Talker (NET) energy value by an ERROR energy value converges to an acoustic echo cancelling reference value.

Abstract translation: 公开了一种用于消除宽带声回波的装置，该装置包括确定单元，用于确定通过将近端发言者（NET）能量值除以ERROR能量值获得的监视系数值是否收敛到声学回声消除参考值 。