公开(公告)号：US20060212289A1

公开(公告)日：2006-09-21

申请号：US11331363

申请日：2006-01-13

申请人： Geun-Bae Song ,  Ho-Chong Park ,  Jae-Bum Kim

发明人： Geun-Bae Song ,  Ho-Chong Park ,  Jae-Bum Kim

IPC分类号： G10L19/08

CPC分类号： G10L19/173 ,  G10L19/12 ,  G10L19/24

摘要： Provided is a voice packet rate converting method and apparatus. The rate of at least one first element of an input voice packet compressed at a first rate is converted to a second rate at a PCM level, and the rate of a second element of the input voice packet is converted to the second rate at a parameter level. An output voice packet compressed at the second rate is generated by combining the first element and second elements at the second rate.

摘要翻译： 提供了语音分组速率转换方法和装置。 以第一速率压缩的输入语音分组的至少一个第一单元的速率被转换为PCM级的第二速率，并且输入语音分组的第二单元的速率被转换成参数的第二速率 水平。 通过以第二速率组合第一元素和第二元素来产生以第二速率压缩的输出语音分组。

公开(公告)号：US08363638B2

公开(公告)日：2013-01-29

申请号：US11338888

申请日：2006-01-25

申请人： Ho-Chong Park ,  Geun-Bae Song ,  Jae-Bum Kim

发明人： Ho-Chong Park ,  Geun-Bae Song ,  Jae-Bum Kim

IPC分类号： H04Q3/00 ,  H04M7/00 ,  H04L29/06

CPC分类号： H04L29/06027 ,  H04L65/605 ,  H04L65/607

摘要： A voice packet forwarding apparatus and method is provided in a digital communication system including a switched vocoder module to directly pass a voice packet received from a packet terminal to a digital communication network or a PCM signal decoded from the voice packet to the digital communication network. The switched vocoder module is also provided to directly pass a voice packet received from the digital communication network to the packet terminal or transmit a voice packet coded from a PCM signal received from the digital communication network. In the presence of additional data to be transmitted to the packet terminal, a data inserter is provided to insert the additional data in the voice packet received from the switched vocoder module and transmit the voice packet with the additional data to the packet terminal. A controller is provided to control the switched vocoder module and the data inserter.

摘要翻译： 在包括切换声码器模块的数字通信系统中提供语音分组转发装置和方法，以将从分组终端接收的语音分组直接传递到数字通信网络或从语音分组解码的PCM信号到数字通信网络。 还提供了切换声码器模块以将从数字通信网络接收到的语音分组直接传送到分组终端，或者传送从数字通信网络接收的PCM信号编码的语音分组。 在存在要发送到分组终端的附加数据的情况下，提供数据插入器以将附加数据插入从切换的声码器模块接收的语音分组中，并将具有附加数据的语音分组发送到分组终端。 提供控制器来控制切换的声码器模块和数据插入器。

公开(公告)号：US20060182091A1

公开(公告)日：2006-08-17

申请号：US11338888

申请日：2006-01-25

申请人： Ho-Chong Park ,  Geun-Bae Song ,  Jae-Bum Kim

发明人： Ho-Chong Park ,  Geun-Bae Song ,  Jae-Bum Kim

IPC分类号： H04L12/66 ,  H04L12/54

CPC分类号： H04L29/06027 ,  H04L65/605 ,  H04L65/607

摘要： A voice packet forwarding apparatus and method is provided in a digital communication system including a switched vocoder module to directly pass a voice packet received from a packet terminal to a digital communication network or a PCM signal decoded from the voice packet to the digital communication network. The switched vocoder module is also provided to directly pass a voice packet received from the digital communication network to the packet terminal or transmit a voice packet coded from a PCM signal received from the digital communication network. In the presence of additional data to be transmitted to the packet terminal, a data inserter is provided to insert the additional data in the voice packet received from the switched vocoder module and transmit the voice packet with the additional data to the packet terminal. A controller is provided to control the switched vocoder module and the data inserter.

公开(公告)号：US20070088546A1

公开(公告)日：2007-04-19

申请号：US11519219

申请日：2006-09-12

申请人： Geun-Bae Song ,  Jae-Bum Kim ,  Chul-Yong Ahn ,  Ho-Chong Park

发明人： Geun-Bae Song ,  Jae-Bum Kim ,  Chul-Yong Ahn ,  Ho-Chong Park

IPC分类号： G10L15/20

CPC分类号： G10L19/265

摘要： An apparatus and a method for transmitting audio signals in such a manner that audio signals transmitted and received in a mobile telephone network are preprocessed before being inputted to a voice encoder are provided. The audio signals are preprocessed by using an optimal filter gain based on error signals obtained when the audio signals are preprocessed and outputted by the voice encoder and the synthesizer. Therefore, the sound quality of the audio signals is hardly degraded by the voice encoder.

摘要翻译： 提供一种用于以这样的方式发送音频信号的装置和方法，即在输入到语音编码器之前，在移动电话网络中发送和接收的音频信号被预处理。 音频信号通过使用基于当音频信号被语音编码器和合成器预处理和输出时获得的误差信号使用最佳滤波器增益来预处理。 因此，语音编码器几乎不会降低音频信号的声音质量。

公开(公告)号：US08311842B2

公开(公告)日：2012-11-13

申请号：US12041132

申请日：2008-03-03

申请人： Geun-Bae Song ,  Min-Sung Kim ,  Hee-Jin Oh ,  Austin Kim ,  Jae-Bum Kim

发明人： Geun-Bae Song ,  Min-Sung Kim ,  Hee-Jin Oh ,  Austin Kim ,  Jae-Bum Kim

IPC分类号： G10L21/04

CPC分类号： G10L21/038

摘要： A method and apparatus for expanding a bandwidth of an input narrowband voice signal is provided. The narrowband voice signal is analyzed separately for each frame, and a Degree of Voicing (DV) and a Degree of Stationary (DS) are calculated depending on the analysis. A Degree of Difficulty of Bandwidth Expansion (DDBWE) of the narrowband voice signal is calculated based on DV and DS. Bandwidth expansion is controlled according to DDBWE.

摘要翻译： 提供了一种用于扩展输入窄带语音信号的带宽的方法和装置。 对于每个帧分别分析窄带语音信号，并根据分析计算出音程（DV）和静止度（DS）。 基于DV和DS计算窄带语音信号带宽扩展难度（DDBWE）的程度。 带宽扩展根据DDBWE进行控制。

公开(公告)号：US20080215344A1

公开(公告)日：2008-09-04

申请号：US12041132

申请日：2008-03-03

申请人： Geun-Bae SONG ,  Min-Sung Kim ,  Hee-Jin Oh ,  Austin Kim ,  Jae-Bum Kim

发明人： Geun-Bae SONG ,  Min-Sung Kim ,  Hee-Jin Oh ,  Austin Kim ,  Jae-Bum Kim

IPC分类号： G10L19/00

CPC分类号： G10L21/038

摘要： A method and apparatus for expanding a bandwidth of an input narrowband voice signal is provided. The narrowband voice signal is analyzed separately for each frame, and a Degree of Voicing (DV) and a Degree of Stationary (DS) are calculated depending on the analysis. A Degree of Difficulty of Bandwidth Expansion (DDBWE) of the narrowband voice signal is calculated based on DV and DS. Bandwidth expansion is controlled according to DDBWE.

摘要翻译： 提供了一种用于扩展输入窄带语音信号的带宽的方法和装置。 对于每个帧分别分析窄带语音信号，并根据分析计算出音程（DV）和静止度（DS）。 基于DV和DS计算窄带语音信号带宽扩展难度（DDBWE）的程度。 带宽扩展根据DDBWE进行控制。

公开(公告)号：US20070258385A1

公开(公告)日：2007-11-08

申请号：US11790368

申请日：2007-04-25

申请人： Jung-Woo Ku ,  Austin Kim ,  Ho-Chong Park ,  Jae-Bum Kim ,  Chul-Yong Ahn ,  Pavel Martynovich

发明人： Jung-Woo Ku ,  Austin Kim ,  Ho-Chong Park ,  Jae-Bum Kim ,  Chul-Yong Ahn ,  Pavel Martynovich

IPC分类号： H04L12/26

CPC分类号： H04L12/66

摘要： An apparatus and method for recovering lost voice packets are provided, in which a packet loss detector determines whether a received packet has been lost, packet information storage stores voice information of previous voice packets and voice information of the received voice packet, a packet error corrector measures the voice information of the received voice packet, stores the measured voice information in the packet information storage, corrects the voice information when necessary, and generates a corrected voice packet, if the received voice packet is normal, and a packet loss recoverer recovers the voice information of the received voice packet using the voice information of previous voice packets stored in the packet information storage and generates a recovered voice packet, if the received voice packet has been lost.

摘要翻译： 提供了一种用于恢复丢失语音分组的装置和方法，其中分组丢失检测器确定接收的分组是否已经丢失，分组信息存储存储先前语音分组的语音信息和接收的语音分组的语音信息，分组误差校正器 测量接收到的语音分组的语音信息，将测量的语音信息存储在分组信息存储器中，必要时校正语音信息，并且如果接收的语音分组正常，则生成校正的语音分组，并且分组丢失恢复器恢复 使用存储在分组信息存储器中的先前语音分组的语音信息的接收到的语音分组的语音信息，并且如果接收到的语音分组已经丢失，则生成恢复的语音分组。

公开(公告)号：US08520536B2

公开(公告)日：2013-08-27

申请号：US11790368

申请日：2007-04-25

申请人： Jung-Woo Ku ,  Austin Kim ,  Ho-Chong Park ,  Jae-Bum Kim ,  Chul-Yong Ahn ,  Pavel Martynovich

发明人： Jung-Woo Ku ,  Austin Kim ,  Ho-Chong Park ,  Jae-Bum Kim ,  Chul-Yong Ahn ,  Pavel Martynovich

IPC分类号： H04L12/26

CPC分类号： H04L12/66

摘要： An apparatus and method for recovering lost voice packets are provided, in which a packet loss detector determines whether a received packet has been lost, packet information storage stores voice information of previous voice packets and voice information of the received voice packet, a packet error corrector measures the voice information of the received voice packet, stores the measured voice information in the packet information storage, corrects the voice information when necessary, and generates a corrected voice packet, if the received voice packet is normal, and a packet loss recoverer recovers the voice information of the received voice packet using the voice information of previous voice packets stored in the packet information storage and generates a recovered voice packet, if the received voice packet has been lost.

摘要翻译： 提供了一种用于恢复丢失语音分组的装置和方法，其中分组丢失检测器确定接收的分组是否已经丢失，分组信息存储存储先前语音分组的语音信息和接收的语音分组的语音信息，分组误差校正器 测量接收到的语音分组的语音信息，将测量的语音信息存储在分组信息存储器中，必要时校正语音信息，并且如果接收的语音分组正常，则生成校正的语音分组，并且分组丢失恢复器恢复 使用存储在分组信息存储器中的先前语音分组的语音信息的接收到的语音分组的语音信息，并且如果接收到的语音分组已经丢失，则生成恢复的语音分组。

公开(公告)号：US08366287B2

公开(公告)日：2013-02-05

申请号：US12846472

申请日：2010-07-29

申请人： Jae-Bum Kim ,  Sun-Hwa Lee

发明人： Jae-Bum Kim ,  Sun-Hwa Lee

IPC分类号： G09F13/04

CPC分类号： G02B5/0231 ,  G02B5/0278 ,  G02B6/0053 ,  G02B6/0065 ,  G02F2001/133607

摘要： Disclosed are an optical sheet, which includes a prism pattern having condensing axes crossing each other in diagonal directions with respect to an arrangement direction of light sources, thereby achieving an enhanced contrast ratio without a reduction in viewing angle and an increase in costs, and a backlight unit using the same. The optical sheet includes a plurality of crossed prism patterns each having a first condensing axis and a second condensing axis crossing each other in diagonal directions with respect to an arrangement direction of a light source.

摘要翻译： 公开了一种光学片，其包括具有相对于光源的布置方向在对角线方向上彼此交叉的聚光轴的棱镜图案，从而获得增强的对比度，而不会降低视角和增加成本，并且 背光单元使用相同。 光学片包括多个交叉的棱镜图案，每个棱镜图案具有相对于光源的布置方向在对角线方向彼此交叉的第一聚光轴和第二聚光轴。

公开(公告)号：US08223960B2

公开(公告)日：2012-07-17

申请号：US12328738

申请日：2008-12-04

申请人： Hwa-Sun You ,  Hee-Won Kang ,  Jae-Bum Kim ,  Jung-Woo Ku

发明人： Hwa-Sun You ,  Hee-Won Kang ,  Jae-Bum Kim ,  Jung-Woo Ku

IPC分类号： H04M9/08 ,  H04B7/14 ,  H04B1/44 ,  H04B3/20

CPC分类号： H04B3/23 ,  H04B7/15585

摘要： A method and apparatus for removing an echo signal in a signal transmission/reception apparatus of a communication system are provided. A signal transmission/reception apparatus determines an echo channel impulse response using a reception signal, generates an echo signal removing coefficient using the echo channel impulse response, removes an echo signal from the reception signal using the echo signal removing coefficient, and transmits a signal in which the echo signal is removed.

摘要翻译： 提供一种用于消除通信系统的信号发送/接收装置中的回波信号的方法和装置。 信号发送/接收装置使用接收信号确定回波信道脉冲响应，使用回波信道脉冲响应产生回波信号去除系数，使用回波信号去除系数从接收信号中去除回波信号，并将信号发送到 回波信号被去除。