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：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：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。

公开(公告)号：US08977134B2

公开(公告)日：2015-03-10

申请号：US13609783

申请日：2012-09-11

申请人： Il-Soon Jang ,  Dae-Ho Kim ,  Sang-Kyu Lim ,  Tae-Gyu Kang

发明人： Il-Soon Jang ,  Dae-Ho Kim ,  Sang-Kyu Lim ,  Tae-Gyu Kang

IPC分类号： H04B10/116 ,  H04B10/114 ,  H04J14/02

CPC分类号： H04B10/116 ,  H04B10/1149 ,  H04J14/02

摘要： There is disclosed a visible light communication technology capable of intuitively recognizing a transmission speed, an alignment status, a communication status, or a transmission rate. A visible light communication apparatus according to an embodiment of the present invention includes: a light source selecting unit selecting at least one light source of a plurality of light sources generating lights having different wavelengths by considering intuitive information distinguished depending on a wavelength in a visible light band; and a visible light communication unit performing visible light communication by at least one selected light source to allow the intuitive information to be recognized by a color corresponding to at least one selected light source. Accordingly, a user using the visible light communication can intuitively know an optimal communication status or transmission speed.

摘要翻译： 公开了能够直观地识别传输速度，对准状态，通信状态或传送速率的可见光通信技术。 根据本发明实施例的可见光通信装置包括：光源选择单元，通过考虑根据可见光中的波长区分的直观信息来选择产生具有不同波长的光的多个光源的至少一个光源 带; 以及可见光通信单元，其通过至少一个选择的光源执行可见光通信，以允许通过与至少一个所选择的光源相对应的颜色来识别直观信息。 因此，使用可见光通信的用户可以直观地知道最佳通信状态或传输速度。

公开(公告)号：US20110033181A1

公开(公告)日：2011-02-10

申请号：US12846351

申请日：2010-07-29

申请人： Il-Soon Jang ,  Dae-Ho Kim ,  Sang-Kyu Lim ,  Tae-Gyu Kang

发明人： Il-Soon Jang ,  Dae-Ho Kim ,  Sang-Kyu Lim ,  Tae-Gyu Kang

IPC分类号： H04J14/00 ,  H04B10/04 ,  H04B10/08

CPC分类号： H04B10/116 ,  H04B10/1149 ,  H04J14/02

摘要： There is disclosed a visible light communication technology capable of intuitively recognizing a transmission speed, an alignment state, a communication state, or a transmission rate. A visible light communication apparatus according to an embodiment of the present invention includes: a light source selecting unit selecting at least one light source from among a plurality of light sources generating lights having different wavelengths by considering intuitive information distinguished depending on a wavelength in a visible light band; and a visible light communication unit performing visible light communication by at least one selected light source to allow the intuitive information to be recognized by a color corresponding to at least one selected light source. Accordingly, a user using the visible light communication can intuitively know an optimal communication state or transmission speed.

摘要翻译： 公开了能够直观地识别传输速度，对准状态，通信状态或传输速率的可见光通信技术。 根据本发明的实施例的可见光通信装置包括：光源选择单元，通过考虑根据可见光波长区分的直观信息，从多个光源中选出具有不同波长的光源中的至少一个光源 光带; 以及可见光通信单元，其通过至少一个选择的光源执行可见光通信，以允许通过与至少一个所选择的光源相对应的颜色来识别直观信息。 因此，使用可见光通信的用户可以直观地知道最佳通信状态或传输速度。

公开(公告)号：US08913893B2

公开(公告)日：2014-12-16

申请号：US13427714

申请日：2012-03-22

申请人： Dae-Ho Kim ,  Tae-Gyu Kang ,  Sang-Kyu Lim ,  Il-Soon Jang ,  You-Jin Kim

发明人： Dae-Ho Kim ,  Tae-Gyu Kang ,  Sang-Kyu Lim ,  Il-Soon Jang ,  You-Jin Kim

IPC分类号： H04B10/00 ,  H04B10/116

CPC分类号： H04B10/116

摘要： Disclosed herein are a visible light communication method and apparatus. The visible light communication method includes determining a dimming level variable to perform minute dimming control, selecting an upper dimming symbol and a lower dimming symbol, which belong to Variable Pulse Position Modulation (VPPM) symbols, based on the dimming level variable, determining at least one of the number of upper dimming symbols to be sent and the number of lower dimming symbols to be sent based on the dimming level variable, and generating a transmission sequence corresponding to the dimming level variable by combining the upper dimming symbols and the lower dimming symbols based on the number of symbols to be sent.

摘要翻译： 本文公开了可见光通信方法和装置。 可见光通信方法包括：基于调光电平变量确定调光电平变量以执行微调光控制，选择属于可变脉冲位置调制（VPPM）符号的上调光符号和下调光符号，至少确定 基于调光电平变量发送的上调光符号的数量和要发送的下调光符号的数量之一，以及通过组合上调光符号和下调光符号来生成与调光电平变量相对应的发送序列 基于要发送的符号数量。

公开(公告)号：US08903252B2

公开(公告)日：2014-12-02

申请号：US13609766

申请日：2012-09-11

申请人： II-Soon Jang ,  Dae-Ho Kim ,  Sang-Kyu Lim ,  Tae-Gyu Kang

发明人： II-Soon Jang ,  Dae-Ho Kim ,  Sang-Kyu Lim ,  Tae-Gyu Kang

IPC分类号： H04B10/116 ,  H04B10/114 ,  H04J14/02

CPC分类号： H04B10/116 ,  H04B10/1149 ,  H04J14/02

摘要： There is disclosed a visible light communication technology capable of intuitively recognizing a transmission speed, an alignment status, a communication status, or a transmission rate. A visible light communication apparatus according to an embodiment of the present invention includes: a light source selecting unit selecting at least one light source of a plurality of light sources generating lights having different wavelengths by considering intuitive information distinguished depending on a wavelength in a visible light band; and a visible light communication unit performing visible light communication by at least one selected light source to allow the intuitive information to be recognized by a color corresponding to at least one selected light source. Accordingly, a user using the visible light communication can intuitively know an optimal communication status or transmission speed.

摘要翻译： 公开了能够直观地识别传输速度，对准状态，通信状态或传输速率的可见光通信技术。 根据本发明实施例的可见光通信装置包括：光源选择单元，通过考虑根据可见光中的波长区分的直观信息来选择产生具有不同波长的光的多个光源的至少一个光源 带; 以及可见光通信单元，其通过至少一个选择的光源执行可见光通信，以允许通过与至少一个所选择的光源相对应的颜色来识别直观信息。 因此，使用可见光通信的用户可以直观地知道最佳通信状态或传输速度。

公开(公告)号：US08447189B2

公开(公告)日：2013-05-21

申请号：US12883574

申请日：2010-09-16

申请人： Dae-Ho Kim ,  Sang-Kyu Lim ,  Il-Soon Jang ,  Tae-Gyu Kang

发明人： Dae-Ho Kim ,  Sang-Kyu Lim ,  Il-Soon Jang ,  Tae-Gyu Kang

IPC分类号： H04B10/00

CPC分类号： H04B10/116 ,  H04B10/1149

摘要： A visible light wireless communication receiver includes: a source code recognizing unit that receives a source bit stream and recognizes the source bit stream as source codes of a unit of a first number of bits; and a line coding unit that encodes each of the source codes into an encoding code of a unit of a second number of bits, the second number being larger than the first number. In particular, in the encoding code, the number of bits corresponding to 1 is the same as the number of bits corresponding to 0. Therefore, the change in brightness of lighting may be minimized in the visible light wireless communication.

摘要翻译： 可见光无线通信接收机包括：源代码识别单元，其接收源比特流并将源比特流识别为第一比特数的单位的源代码; 以及行编码单元，其将每个源代码编码为第二位数单位的编码码，第二数大于第一数。 特别地，在编码代码中，对应于1的比特数与对应于0的比特数相同。因此，在可见光无线通信中照明亮度的变化可能被最小化。

公开(公告)号：US08417122B2

公开(公告)日：2013-04-09

申请号：US12846359

申请日：2010-07-29

申请人： Dae-Ho Kim ,  Tae-Gyu Kang ,  Sang-Kyu Lim ,  Il-Soon Jang

发明人： Dae-Ho Kim ,  Tae-Gyu Kang ,  Sang-Kyu Lim ,  Il-Soon Jang

IPC分类号： H04B10/00

CPC分类号： H04B10/116 ,  H04B10/1143

摘要： A visible light communication apparatus of the present invention includes: a target signal receiver filtering only a signal having a target wavelength from a visible light received signal received from a transmitting terminal; a signal generator judging a reception quality of the visible light received signal by using characteristics of the signal having the target wavelength and generating a visible signal by using at least one light source having a wavelength different from the target wavelength in accordance with the reception quality; and an optical signal transmitter transmitting the signal having the target wavelength for transmitting data together with the visible signal and changing a light emitting color of a visible light transmitted signal.

摘要翻译： 本发明的可见光通信装置包括：目标信号接收机，从发射端子接收到的可见光接收信号仅滤除具有目标波长的信号; 信号发生器，通过使用具有目标波长的信号的特性来判断可见光接收信号的接收质量，并根据接收质量通过使用至少一个具有与目标波长不同的波长的光源产生可见信号; 以及光信号发射器，将具有目标波长的信号与可见信号一起发射，并且改变可见光发射信号的发光颜色。