公开(公告)号：US08843379B2

公开(公告)日：2014-09-23

申请号：US13242693

申请日：2011-09-23

申请人： Seung-Han Choi ,  Do-Young Kim ,  Byung-Sun Lee

发明人： Seung-Han Choi ,  Do-Young Kim ,  Byung-Sun Lee

IPC分类号： G10L19/00 ,  H04L29/06 ,  H04L12/861

CPC分类号： H04L65/608 ,  H04L49/90 ,  H04L65/80

摘要： An apparatus, electronic apparatus and method for adjusting jitter buffer is provided. A previous jitter buffer size based on a jitter buffer size determined according to an adaptive jitter buffer size calculation algorithm is applied in predicting a jitter buffer size of future time such that the predicted jitter buffer size is applied to obtain a jitter buffer size of a valid time. The audio quality of the speech transmitted over a packet switched network is enhanced.

摘要翻译： 提供了一种用于调整抖动缓冲器的装置，电子设备和方法。 基于根据自适应抖动缓冲器大小计算算法确定的抖动缓冲器大小的先前抖动缓冲器大小被应用于预测未来时间的抖动缓冲器大小，使得应用预测的抖动缓冲器大小以获得有效的抖动缓冲器大小 时间。 通过分组交换网络发送的语音的音频质量得到提高。

公开(公告)号：US08359620B2

公开(公告)日：2013-01-22

申请号：US12850139

申请日：2010-08-04

申请人： Seung-Han Choi ,  Woon-Seob So ,  Do-Young Kim ,  Hyun-Joo Bae ,  Byung-Sun Lee

发明人： Seung-Han Choi ,  Woon-Seob So ,  Do-Young Kim ,  Hyun-Joo Bae ,  Byung-Sun Lee

IPC分类号： H04N7/173

CPC分类号： H04L12/66 ,  H04N21/478 ,  H04N21/6437

摘要： An Internet Set-Top Box (ISTB) and a method of providing wideband IP telephony services using the ISTB are provided, which are capable of implementing wideband voice communication services using a wideband voice codec, controlling a Real-Time Transport Protocol (RTP) packet payload to process a variety of wideband speech frame payloads, and providing high-quality wideband IP telephony services by controlling a jitter buffer to maintain conference call synchronization.

摘要翻译： 提供了互联网机顶盒（ISTB）和使用ISTB提供宽带IP电话服务的方法，其能够使用宽带语音编解码器来实现宽带语音通信服务，从而控制实时传输协议（RTP）包 负责处理各种宽带语音帧有效载荷，以及通过控制抖动缓冲器来维持电话会议同步来提供高质量的宽带IP电话业务。

公开(公告)号：US07447787B2

公开(公告)日：2008-11-04

申请号：US10637873

申请日：2003-08-08

申请人： Seung-Han Choi ,  Tae-Gyu Kang ,  Do-Young Kim

发明人： Seung-Han Choi ,  Tae-Gyu Kang ,  Do-Young Kim

IPC分类号： G06F15/16

CPC分类号： H04L69/08

摘要： Disclosed is a system and method for expandibly operating protocol PDU (Protocol Data Unit) encoding/decoding blocks communicating with a protocol executing block in the same protocol. With at least two types of protocol PDU encoding/decoding blocks for data communication in the same protocol, the protocol executing block does not implement the execution of protocol PDUs independently according to the respective encoding/decoding methods, but converts the information of the protocol PDU encoding/decoding block into that of the protocol executing block using a protocol PDU common data structure disposed between the protocol PDU encoding/decoding blocks and the protocol executing block.

摘要翻译： 公开了一种用于可扩展地操作协议PDU（协议数据单元）对与同一协议中的协议执行块进行通信的块/解码块的系统和方法。 使用同一协议中的数据通信的协议PDU编码/解码块的至少两种类型，协议执行块根据各自的编码/解码方法不独立地执行协议PDU的执行，而是转换协议PDU的信息 使用设置在协议PDU编码/解码块和协议执行块之间的协议PDU公共数据结构，将编码/解码块转换成协议执行块的编码/解码块。

公开(公告)号：US07756139B2

公开(公告)日：2010-07-13

申请号：US11285461

申请日：2005-11-21

申请人： Seung-Han Choi ,  Do-Young Kim

发明人： Seung-Han Choi ,  Do-Young Kim

IPC分类号： H04L12/28

CPC分类号： H04L29/06027 ,  H04L65/1033 ,  H04L65/1043

摘要： An apparatus and a method for megaco protocol conversion is provided. The apparatus includes: a plurality of first protocol execution units for receiving a plurality of protocol packets, executing operations according to the received protocols, analyzing the received protocols, and generating protocol execution parameters. Databases store connection information between the objects and protocol conversion functions. A protocol conversion unit interfaces first protocol execution unit and the megaco protocol execution unit, and searches for destination objects and the protocol conversion functions in the database, and converts the generated protocol execution parameters to protocol types of the destination objects, based on condition modes of objects which transmitted the protocol packets.

摘要翻译： 提供了一种用于megaco协议转换的装置和方法。 该装置包括：多个第一协议执行单元，用于接收多个协议包，根据接收的协议执行操作，分析接收的协议，以及生成协议执行参数。 数据库存储对象和协议转换功能之间的连接信息。 协议转换单元接口第一协议执行单元和兆协议执行单元，并搜索数据库中的目标对象和协议转换功能，并根据条件模式将生成的协议执行参数转换为目标对象的协议类型 发送协议报文的对象。

公开(公告)号：US20060109862A1

公开(公告)日：2006-05-25

申请号：US11285461

申请日：2005-11-21

申请人： Seung-Han Choi ,  Do-Young Kim

发明人： Seung-Han Choi ,  Do-Young Kim

IPC分类号： H04L12/66 ,  H04J3/16 ,  H04J3/22

CPC分类号： H04L29/06027 ,  H04L65/1033 ,  H04L65/1043

摘要： An apparatus and a method for megaco protocol conversion is provided. The apparatus includes: a plurality of first protocol execution means for receiving a plurality of different protocol packets, executing operations according to the received protocols, analyzing the received protocols, and generating protocol execution parameters; a megaco protocol execution means for receiving a megaco protocol packet, executing operations according to the received protocol, analyzing the received protocol, and generating protocol execution parameters; databases for storing connection information between the objects and protocol conversion functions; and a protocol conversion means for interworking between the first protocol execution means and the megaco protocol execution means, searching for destination objects and the protocol conversion functions in the database, and converting the generated protocol execution parameters to protocol types of the destination objects, based on condition modes of objects which transmitted the protocol packets.

摘要翻译： 提供了一种用于megaco协议转换的装置和方法。 该装置包括：多个第一协议执行装置，用于接收多个不同的协议包，根据接收到的协议执行操作，分析接收到的协议，并产生协议执行参数; 兆协议执行装置，用于接收兆协议分组，根据接收到的协议执行操作，分析接收到的协议，并产生协议执行参数; 用于存储对象和协议转换功能之间的连接信息的数据库; 以及协议转换装置，用于在第一协议执行装置和兆协议执行装置之间进行交互，搜索数据库中的目的地对象和协议转换功能，并且基于所生成的协议执行参数转换为目的对象的协议类型， 传输协议报文的对象的状态模式。

公开(公告)号：US09142222B2

公开(公告)日：2015-09-22

申请号：US13613792

申请日：2012-09-13

申请人： Mi-Suk Lee ,  Do-Young Kim ,  Byung-Sun Lee

发明人： Mi-Suk Lee ,  Do-Young Kim ,  Byung-Sun Lee

IPC分类号： G10L21/00 ,  G10L21/0208 ,  G10L19/24 ,  G10L21/0316 ,  G11B20/10 ,  H03G3/34 ,  G10L21/038

CPC分类号： G10L21/0208 ,  G10L19/24 ,  G10L21/0316 ,  G10L21/038 ,  G11B20/10527 ,  G11B2020/10555 ,  H03G3/341

摘要： An apparatus and method of improving the quality of a speech codec are provided. In the method, a first energy of a signal decoded by a low-band codec is calculated, and a second energy of a signal decoded by a low-band enhancement mode is calculated. Then, when the first energy is less than a first threshold value or less than a product of the second energy and a second threshold value, a size of the decoded signal is scaled. Accordingly, generation of a quantization error with respect to a silence segment is reduced.

摘要翻译： 提供了一种提高语音编解码器质量的装置和方法。 在该方法中，计算由低频带编解码器解码的信号的第一能量，并且计算通过低频带增强模式解码的信号的第二能量。 然后，当第一能量小于第一阈值或小于第二能量与第二阈值的乘积时，解码信号的大小被缩放。 因此，减少相对于静音段的量化误差的产生。

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：US09135926B2

公开(公告)日：2015-09-15

申请号：US13613742

申请日：2012-09-13

申请人： Mi-Suk Lee ,  Do-Young Kim ,  Byung-Sun Lee

发明人： Mi-Suk Lee ,  Do-Young Kim ,  Byung-Sun Lee

IPC分类号： G10L21/00 ,  G10L21/0208 ,  G10L19/24 ,  G10L21/0316 ,  G11B20/10 ,  H03G3/34 ,  G10L21/038

CPC分类号： G10L21/0208 ,  G10L19/24 ,  G10L21/0316 ,  G10L21/038 ,  G11B20/10527 ,  G11B2020/10555 ,  H03G3/341

摘要： An apparatus and method of improving the quality of a speech codec are provided. In the method, a first energy of a signal decoded by a low-band codec is calculated, and a second energy of a signal decoded by a low-band enhancement mode is calculated. Then, when the first energy is less than a first threshold value or less than a product of the second energy and a second threshold value, a size of the decoded signal is scaled. Accordingly, generation of a quantization error with respect to a silence segment is reduced.

公开(公告)号：US20120163214A1

公开(公告)日：2012-06-28

申请号：US13333502

申请日：2011-12-21

申请人： Woon-Seob So ,  Do-Young Kim ,  Byung-Sun Lee

发明人： Woon-Seob So ,  Do-Young Kim ,  Byung-Sun Lee

IPC分类号： H04W24/00

CPC分类号： H04W24/00 ,  G10L25/69 ,  H04M1/2535 ,  H04M3/2236

摘要： A method for measuring voice quality in a wireless communication network includes measuring an MOS of a signal using a narrowband voice codec and an MOS of a signal using a wideband voice codec in a cable loopback environment, calculating a wideband voice codec correction coefficient using the measured MOS, measuring an MOS of a signal using the narrowband voice codec and an MOS of a signal using the wideband voice codec in a terminal connection environment; and outputting a value obtained by adding the wideband voice codec correction coefficient to the measured MOS in the terminal connection environment.

摘要翻译： 一种用于测量无线通信网络中的语音质量的方法包括：在电缆环回环境中使用窄带语音编解码器和使用宽带语音编解码器的信号的MOS测量信号的MOS，使用所测量的宽带语音编解码器校正系数 MOS，在终端连接环境中使用窄带语音编解码器测量信号的MOS信号和使用宽带语音编解码器的信号的MOS; 并且在终端连接环境中输出通过将宽带语音编解码器校正系数与所测量的MOS相加而获得的值。

公开(公告)号：US08195846B2

公开(公告)日：2012-06-05

申请号：US12746565

申请日：2008-10-01

申请人： In-Ki Hwang ,  Do-Young Kim ,  Byung-Sun Lee

发明人： In-Ki Hwang ,  Do-Young Kim ,  Byung-Sun Lee

IPC分类号： G06F13/28 ,  G06F13/20

CPC分类号： G06F13/28

摘要： A direct memory access controller (DMAC) for improving data transmission efficiency in multi-media over internet protocol (MMoIP) and a method therefor are provided. The DMAC requests and obtains a bus control right by determining that a DMA request signal is generated not only when a DMA request signal of a module for processing data in MMoIP is received but also when an operation of a timer operating during a predetermined period set considering periodicity of data in MMoIP is completed. Thus, the time taken to request a bus control right in a conventional DMAC can be reduced, thereby improving data transmission efficiency in MMoIP.

摘要翻译： 提供了一种用于提高多媒体互联网协议（MMoIP）的数据传输效率的直接存储器访问控制器（DMAC）及其方法。 DMAC通过确定DMA请求信号不仅在MMoIP中处理数据的模块的DMA请求信号被接收到时产生总线控制权，而且当在考虑到MMoIP的预定时段内运行的定时器的操作 MMoIP中的数据周期性完成。 因此，可以减少在常规DMAC中请求总线控制权所需的时间，从而提高MMoIP中的数据传输效率。