公开(公告)号：US20110122786A1

公开(公告)日：2011-05-26

申请号：US12808525

申请日：2008-07-09

申请人： Ki-Jong Koo ,  Do-Young Kim ,  Byung-Sun Lee

发明人： Ki-Jong Koo ,  Do-Young Kim ,  Byung-Sun Lee

IPC分类号： H04L12/26 ,  H04W84/02 ,  H04L12/66

CPC分类号： H04W28/22 ,  H04L1/0014 ,  H04W28/02 ,  H04W88/181

摘要： A method and apparatus for controlling voice quality in WLAN is provided. The codec bit rate of wireless terminals is adjusted by collecting channel state information for determining a channel occupation time of wireless terminals connected to an access point, adjusting the codec bit rate of the wireless terminals based on channel occupancy of the wireless terminals with respect to total channel capacity, which is determined using the channel state information, and transmitting the adjusted codec bit rate to each of the wireless terminals.

摘要翻译： 提供了一种用于控制WLAN中语音质量的方法和装置。 通过收集用于确定连接到接入点的无线终端的信道占用时间的信道状态信息来调整无线终端的编解码比特率，基于无线终端的信道占有率调整无线终端的编解码器比特率 信道容量，其使用信道状态信息确定，并且将调整的编解码器比特率发送到每个无线终端。

公开(公告)号：US07907523B2

公开(公告)日：2011-03-15

申请号：US11930678

申请日：2007-10-31

申请人： Ki-Jong Koo ,  Dae-Ho Kim ,  Tae-Gyu Kang ,  Do Young Kim ,  Hae Won Jung

发明人： Ki-Jong Koo ,  Dae-Ho Kim ,  Tae-Gyu Kang ,  Do Young Kim ,  Hae Won Jung

IPC分类号： H04L12/26

CPC分类号： H04L47/801 ,  G10L19/24 ,  H04L43/0829 ,  H04L43/0852 ,  H04L47/70 ,  H04L47/822

摘要： A method and apparatus for controlling a variable bit-rate voice codec are provided. The method of controlling the variable bit-rate voice codec may include: extracting calling capability of terminals that request a new call to be made; extracting network parameters from existing calls in the network through an exchanged packet; measuring voice quality of the existing calls based on the extracted network parameters; and determining whether to permit a new call to be made based on the measured voice quality and the calling capability. Accordingly, it is possible to secure QoS of a voice service between terminals by adjusting a transmission rate of the variable bit-rate codec based on transmission capability of a network.

摘要翻译： 提供了一种用于控制可变比特率语音编解码器的方法和装置。 控制可变比特率语音编解码器的方法可以包括：提取请求新呼叫的终端的呼叫能力; 通过交换的分组从网络中的现有呼叫提取网络参数; 基于所提取的网络参数来测量现有呼叫的语音质量; 以及基于测量的语音质量和呼叫能力来确定是否允许进行新的呼叫。 因此，可以通过基于网络的传输能力调整可变比特率编解码器的传输速率来确保终端之间的语音服务的QoS。

公开(公告)号：US20080130511A1

公开(公告)日：2008-06-05

申请号：US11930678

申请日：2007-10-31

申请人： Ki-Jong Koo ,  Dae-Ho Kim ,  Tae-Gyu Kang ,  Do Young Kim ,  Hae Won Jung

发明人： Ki-Jong Koo ,  Dae-Ho Kim ,  Tae-Gyu Kang ,  Do Young Kim ,  Hae Won Jung

IPC分类号： G06F11/30

CPC分类号： H04L47/801 ,  G10L19/24 ,  H04L43/0829 ,  H04L43/0852 ,  H04L47/70 ,  H04L47/822

摘要： A method and apparatus for controlling a variable bit-rate voice codec are provided. The method of controlling the variable bit-rate voice codec may include: extracting calling capability of terminals that request a new call to be made; extracting network parameters from existing calls in the network through an exchanged packet; measuring voice quality of the existing calls based on the extracted network parameters; and determining whether to permit a new call to be made based on the measured voice quality and the calling capability. Accordingly, it is possible to secure QoS of a voice service between terminals by adjusting a transmission rate of the variable bit-rate codec based on transmission capability of a network.

摘要翻译： 提供了一种用于控制可变比特率语音编解码器的方法和装置。 控制可变比特率语音编解码器的方法可以包括：提取请求新呼叫的终端的呼叫能力; 通过交换的分组从网络中的现有呼叫提取网络参数; 基于提取的网络参数测量现有呼叫的语音质量; 以及基于测量的语音质量和呼叫能力来确定是否允许进行新的呼叫。 因此，可以通过基于网络的传输能力调整可变比特率编解码器的传输速率来确保终端之间的语音服务的QoS。

公开(公告)号：US08117029B2

公开(公告)日：2012-02-14

申请号：US11928557

申请日：2007-10-30

申请人： Dae-Ho Kim ,  Tae-Gyu Kang ,  Ki-Jong Koo ,  Do Young Kim ,  Hae Won Jung

发明人： Dae-Ho Kim ,  Tae-Gyu Kang ,  Ki-Jong Koo ,  Do Young Kim ,  Hae Won Jung

IPC分类号： G10L21/00

CPC分类号： G10L25/69 ,  G10L19/18

摘要： Provided is a transmission apparatus for matching sound quality measurement sections of a variable bandwidth multi-codec. The apparatus includes a measurement section setting unit setting a measurement section, which is to be measured for sound quality, in units of time; a first conversion unit converting the measurement section into a measurement section in units of samples; and an information synthesis unit synthesizing information regarding the measurement section in units of samples with a digital original sound and outputting the synthesis result. In addition, provided is a method of matching a measurement section of a reference sound, based on which the end-to-end sound quality measurement of the variable bandwidth multi-codec is performed, and a measurement section of a sound produced by the variable bandwidth multi-codec in a real-time Internet multimedia service. Therefore, distortion of measurement results due to un-matching measurement sections can be reduced.

摘要翻译： 提供了一种用于匹配可变带宽多编解码器的音质测量部分的发送装置。 该装置包括以时间为单位设置要测量声音质量的测量部分的测量部分设置单元; 第一转换单元，以样本为单位将测量部转换为测量部; 以及信息合成单元，以具有数字原始声音的样本为单位合成关于测量部分的信息，并输出合成结果。 此外，提供了一种将参考声音的测量部分与可变带宽多编解码器的端对端音质测量进行匹配的方法以及由变量产生的声音的测量部分 带宽多编解码器在实时互联网多媒体服务。 因此，可以减少由于不匹配的测量部分引起的测量结果的失真。

公开(公告)号：US07986634B2

公开(公告)日：2011-07-26

申请号：US11857539

申请日：2007-09-19

申请人： Tae-Gyu Kang ,  Ki-Jong Koo ,  Dae-Ho Kim ,  Do Young Kim ,  Hae Won Jung

发明人： Tae-Gyu Kang ,  Ki-Jong Koo ,  Dae-Ho Kim ,  Do Young Kim ,  Hae Won Jung

IPC分类号： H04L12/26

CPC分类号： G10L25/69 ,  G10L19/24

摘要： Provided are a method and apparatus for measuring sound quality in a variable band multi-codec. The sound quality measurement apparatus includes: a recording file receiving/generating unit receiving a first recording file in which a natural sound is recorded, and a second recording file obtained by converting the natural sound into digital data using the variable band multi-codec, receiving information obtained by encoding the natural sound using the variable band multi-codec, in the format of a Real Time Protocol (RTP) packet, unpacking the RTP packet, decoding the RTP packet using the variable band multi-codec, and generating a third recording file; a Mean Opinion Score (MOS) value calculating unit repeatedly selecting a file from among the first recording file, the second recording file, and the third recording file, or selecting two files from among the first recording file, the second recording file, and the third recording file, and calculating a MOS value by obtaining a difference between the selected results; and a MOS value comparison unit comparing a plurality of MOS values generated by the MOS value calculating unit, with each other, and detecting a cause of sound quality deterioration.

摘要翻译： 提供了一种用于测量可变频带多编解码器中的声音质量的方法和装置。 声音测量装置包括：记录文件接收/生​​成单元，接收其中记录有自然声音的第一记录文件;以及第二记录文件，其通过使用可变频带多编解码器将自然声音转换为数字数据而获得，第二记录文件接收 使用可变频带多编解码器以实时协议（RTP）分组的格式编码自然声音获得的信息，解包RTP分组，使用可变频带多编解码器解码RTP分组，以及生成第三记录 文件; 平均意见得分（MOS）值计算单元，重复从第一记录文件，第二记录文件和第三记录文件中选择文件，或者从第一记录文件，第二记录文件和第二记录文件中选择两个文件 第三记录文件，并且通过获得所选择的结果之间的差来计算MOS值; 以及MOS值比较单元，将由MOS值计算单元生成的多个MOS值彼此进行比较，并且检测出音质劣化的原因。