公开(公告)号：US20130030795A1

公开(公告)日：2013-01-31

申请号：US13638364

申请日：2011-03-31

Applicant: Jongmo Sung ,  Hyun Woo Kim ,  Hyun Joo Bae

Inventor： Jongmo Sung ,  Hyun Woo Kim ,  Hyun Joo Bae

IPC: G10L19/02

CPC classification number: G10L19/0212 ,  G10L19/0017 ,  G10L19/032 ,  G10L19/24

Abstract: An encoding method of an encoder is provided. The encoder generates first MDCT coefficients by transforming an input signal, and generates MDCT indices by quantizing the first MDCT coefficients. The encoder generates second MDCT coefficients by dequantizing the MDCT indices, and calculates MDCT residual coefficients using differences between the first MDCT coefficients and the second MDCT coefficients. The encoder generates a residual index by encoding the MDCT residual coefficients, and generates gain indices corresponding to gains from the first MDCT coefficients and the second MDCT coefficients.

Abstract translation: 提供了一种编码器的编码方法。 编码器通过变换输入信号来生成第一MDCT系数，并通过量化第一MDCT系数来生成MDCT索引。 编码器通过对MDCT索引进行去量化生成第二MDCT系数，并且使用第一MDCT系数和第二MDCT系数之间的差异来计算MDCT残差系数。 编码器通过对MDCT残差系数进行编码来生成残余索引，并且生成与来自第一MDCT系数和第二MDCT系数的增益对应的增益指数。

公开(公告)号：US20100161320A1

公开(公告)日：2010-06-24

申请号：US12556073

申请日：2009-09-09

Applicant: Hyun Woo KIM ,  Hyun Joo BAE ,  Byung Sun LEE

Inventor： Hyun Woo KIM ,  Hyun Joo BAE ,  Byung Sun LEE

IPC: G10L19/00

CPC classification number: G10L19/0208 ,  G10L19/032

Abstract: An apparatus and method for adaptive sub-band allocation of spectral coefficients are disclosed. The sizes of sub-bands are determined according to the distribution of spectral coefficients transformed from an input speech/audio signal to perform more elaborate quantization in units of sub-bands. Thus, quantization noise of the spectral coefficients is reduced, and sound quality in a frequency region is enhanced, thereby improving the quality of the signal.

Abstract translation: 公开了一种用于频谱系数的自适应子带分配的装置和方法。 根据从输入语音/音频信号变换的频谱系数的分布来确定子频带的大小，以以子频带为单位进行更精细的量化。 因此，频谱系数的量化噪声减小，频率区域中的声音质量增强，从而提高信号的质量。

公开(公告)号：US20100157984A1

公开(公告)日：2010-06-24

申请号：US12556696

申请日：2009-09-10

Applicant: In Ki HWANG ,  Hyun Joo BAE ,  Byung Sun LEE

Inventor： In Ki HWANG ,  Hyun Joo BAE ,  Byung Sun LEE

IPC: H04L12/66

CPC classification number: H04L12/66

Abstract: A wideband Voice over Internet Protocol (VoIP) terminal is provided. The wideband VoIP terminal includes a synchronous serial interface which processes audio data input thereto or output therefrom in series in synchronization with a clock; and an audio accelerator which encodes or decodes the audio data, wherein the synchronous serial interface includes a buffer buffering the audio data and a buffer controller controlling the buffer and the audio accelerator includes a memory storing the audio data processed by the synchronous serial interface under the control of the buffer controller, a memory controller controlling the memory and an encoder/decoder encoding/decoding the audio data. The wideband VoIP terminal can facilitate the input and output of data.

Abstract translation: 提供了一种宽带语音网际协议（VoIP）终端。 宽带VoIP终端包括同步串行接口，该同步串行接口与时钟同步地处理输入到其中的音频数据或从其输出串行的音频数据; 以及音频加速器，其对音频数据进行编码或解码，其中同步串行接口包括缓冲音频数据的缓冲器和控制缓冲器的缓冲器控制器，并且音频加速器包括存储由同步串行接口处理的音频数据的存储器 控制缓冲器控制器，控制存储器的存储器控​​制器和编码/解码音频数据的编码器/解码器。 宽带VoIP终端可以方便数据的输入和输出。

公开(公告)号：US20100157962A1

公开(公告)日：2010-06-24

申请号：US12556051

申请日：2009-09-09

Applicant: Ki Jong KOO ,  Hyun Joo BAE ,  Byung Sun LEE

Inventor： Ki Jong KOO ,  Hyun Joo BAE ,  Byung Sun LEE

IPC: H04W40/00 ,  H04L12/66

CPC classification number: H04W72/1221 ,  H04W72/1242 ,  H04W74/0816

Abstract: The transmission delay of a voice frame can be reduced by performing internal collision resolution and frame aggregation according to the presence or absence of a voice frame awaiting transmission in a MAC layer, thereby reducing an end-to-end voice transmission delay time for a VoIP service.

Abstract translation: 可以通过根据在MAC层中等待传输的语音帧的存在或不存在来执行内部冲突解决和帧聚合来减少语音帧的传输延迟，从而减少VoIP的端到端语音传输延迟时间 服务。

公开(公告)号：US20100150121A1

公开(公告)日：2010-06-17

申请号：US12556682

申请日：2009-09-10

Applicant: Woon Seob SO ,  Hyun Joo BAE ,  Byung Sun LEE

Inventor： Woon Seob SO ,  Hyun Joo BAE ,  Byung Sun LEE

IPC: H04W4/00 ,  H04L12/66

CPC classification number: H04M1/72519 ,  H04M1/6025 ,  H04M2250/02 ,  H04M2250/06 ,  H04M2250/10 ,  H04W84/12 ,  H04W84/18 ,  H04W88/06

Abstract: A fixed mobile convergence (FMC) communication apparatus using a wideband audio codec is provided. The FMC communication apparatus includes an application processor which is capable of processing one or more wireless communication protocols and supports a wideband audio codec; a wideband audio signal input/output (I/O) unit which is connected to the application processor and processes the input and output of wideband audio signals; a mobile network access unit which is connected to the application processor and accesses a mobile communication network; and a wireless local area network (LAN) access unit which is connected to the application processor and wirelessly accesses an access point (AP). The FMC communication apparatus can access the base station of a mobile internet system or the base station of a mobile communication system. In addition, the FMC communication apparatus can access a Bluetooth device or an AP using a short-range wireless communication method. Moreover, the FMC communication apparatus can provide high-quality voice call services and various multimedia internet services by using a wideband audio codec.

Abstract translation: 提供了使用宽带音频编解码器的固定移动融合（FMC）通信装置。 FMC通信装置包括能够处理一个或多个无线通信协议并支持宽带音频编解码器的应用处理器; 宽带音频信号输入/输出（I / O）单元，连接到应用处理器并处理宽带音频信号的输入和输出; 移动网络接入单元，其连接到所述应用处理器并访问移动通信网络; 以及连接到应用处理器并无线地访问接入点（AP）的无线局域网（LAN）接入单元。 FMC通信装置可以访问移动互联网系统的基站或移动通信系统的基站。 此外，FMC通信装置可以使用短距离无线通信方式访问蓝牙装置或者AP。 此外，FMC通信装置可以通过使用宽带音频编解码器来提供高质量的语音呼叫服务和各种多媒体互联网服务。