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：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：US08326641B2

公开(公告)日：2012-12-04

申请号：US12407434

申请日：2009-03-19

申请人： Geun-Bae Song ,  Pavel Martynovich ,  Chul-Yong Ahn

发明人： Geun-Bae Song ,  Pavel Martynovich ,  Chul-Yong Ahn

IPC分类号： G10L19/00 ,  G10L21/00

CPC分类号： G10L19/0204 ,  G10L19/24 ,  G10L21/038

摘要： An apparatus and method for encoding and decoding using mutual information between a high band signal and a low band signal to increase a coding efficiency in a portable terminal are provided. The apparatus includes a bandwidth extender for extracting auxiliary information relating to a characteristic of a high band signal using the high band signal and a low band signal and an encoder for encoding residual high band signal obtained by subtracting auxiliary information acquired from the low band signal from auxiliary information acquired from the high band signal.

摘要翻译： 提供了一种使用高频带信号和低频带信号之间的互信息进行编码和解码以提高便携式终端中的编码效率的装置和方法。 该装置包括：带宽扩展器，用于使用高频带信号和低频带信号提取与高频带信号的特性有关的辅助信息;以及编码器，用于对通过从低频带信号中获取的辅助信息进行减法而获得的残余高频带信号进行编码 从高频带信号获取的辅助信息。

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。