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41. 发明授权

US07233893B2 Method and apparatus for transmitting wideband speech signals 失效
标题翻译：用于发送宽带语音信号的方法和装置
公开(公告)号：US07233893B2
公开(公告)日：2007-06-19
申请号：US10222662
申请日：2002-08-16
申请人： Ho-sang Sung , Dae-hwan Hwang
发明人： Ho-sang Sung , Dae-hwan Hwang
IPC分类号： G10L19/00 , G10L19/14 , G10L21/00 , G06F15/173
CPC分类号： G10L19/18 , G10L2021/02082
摘要： A method and an apparatus for transmitting a speech signal are provided. A speech signal transmitter includes a quadrature mirror filter, a base sub-band encoder, an enhancement sub-band encoder, and a network connector. The quadrature mirror filter receives a speech signal, divides the speech signal into an enhancement band speech signal and a base band speech signal, and outputs the enhancement band speech signal and the base band speech signal. The base sub-band encoder receives and encodes the base band speech signal. The enhancement sub-band encoder receives and encodes the enhancement band speech signal. The network connector multiplexes the encoded enhancement band speech signal and the encoder base band speech signal based on the kinds of networks over which speech signals are transmitted, and transmits the multiplexed signals to the networks. A speech signal s multiplexed and transmitted by various methods based on the kinds of networks. Thus, the speech signal can be efficiently transmitted.
摘要翻译：提供了一种用于发送语音信号的方法和装置。语音信号发射机包括正交镜滤波器，基本子带编码器，增强子带编码器和网络连接器。正交镜滤波器接收语音信号，将语音信号分为增强频带语音信号和基带语音信号，并输出增强频带语音信号和基带语音信号。基带子编码器接收并编码基带语音信号。增强子带编码器接收并编码增强频带语音信号。网络连接器基于发送语音信号的网络的种类，多路复用编码的增强频带语音信号和编码器基带语音信号，并将多路复用的信号发送到网络。基于网络种类的各种方法多路复用和发送的语音信号。因此，可以有效地发送语音信号。

42. 发明申请

US20100002794A1 METHOD, MEDIUM AND APPARATUS FOR QUANTIZATION ENCODING AND DE-QUANTIZATION DECODING USING TRELLIS 有权
标题翻译：使用TRELLIS进行量化编码和解量化解码的方法，介质和设备
公开(公告)号：US20100002794A1
公开(公告)日：2010-01-07
申请号：US12556874
申请日：2009-09-10
申请人： Ho-sang Sung , Thomas R. Fischer
发明人： Ho-sang Sung , Thomas R. Fischer
IPC分类号： H04L23/02
CPC分类号： H03M7/3082 , H03M13/23
摘要： Provided are a method and apparatus for quantization encoding and de-quantization decoding using a trellis. Unlike a trellis coded quantization (TCQ) index, by classifying quantization levels to which cosets are allocated and allocating indexes to the quantization levels so that a coset corresponding to a specific branch in a predetermined state in the trellis can be selected with only indexes without encoding or decoding information on paths, quantization encoding and de-quantization decoding are performed by using a new index.
摘要翻译：提供了一种使用网格进行量化编码和解量化解码的方法和装置。与网格编码量化（TCQ）索引不同，通过对分配了陪集的量化级进行分类，并将索引分配给量化级别，使得可以仅使用索引而不选择编码在网格中的特定分支对应于特定分支的陪集或通过使用新的索引来执行解码关于路径的信息，量化编码和解量化解码。

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