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1. 发明授权

US07430506B2 Preprocessing of digital audio data for improving perceptual sound quality on a mobile phone 有权
标题翻译：数字音频数据的预处理，以提高手机上的感知音质
公开(公告)号：US07430506B2
公开(公告)日：2008-09-30
申请号：US10753713
申请日：2004-01-08
申请人： Young Han Nam , Seop Hyeong Park , Yun Ho Jeon
发明人： Young Han Nam , Seop Hyeong Park , Yun Ho Jeon
IPC分类号： G10L11/04 , G10L19/00 , G10L21/00
CPC分类号： G10L19/265 , G10L19/22
摘要： Since music signals are encoded by a voice encoding method optimized to human voice signals such as EVRC (Enhanced Variable Rate Coding) in a cellular communication system, the music signals are often distorted by such encoding method, and listeners experience pauses in music caused by such voice-optimized encoding method. To improve the perceptual sound quality of music, a method for preprocessing digital audio data is provided in order to prevent the problem of pause in music signals in a cellular phone. In particular, AGC (Automatic Gain Control) preprocessing and PHE (Pitch Harmonics Enhancement) is performed to the digital audio data having low dynamic range. By this method, the number of pauses in music signal is reduced, and the perceptual sound quality of the music is improved.
摘要翻译：由于音乐信号是通过针对诸如蜂窝通信系统中的EVRC（增强型可变速率编码）等人声语音信号进行了优化的语音编码方法进行编码的，因此音乐信号经常被这种编码方式扭曲，并且收听者经历由此产生的音乐暂停语音优化编码方法。为了提高音乐的感知音质，提供了一种用于预处理数字音频数据的方法，以便防止蜂窝电话中的音乐信号暂停的问题。特别地，对具有低动态范围的数字音频数据执行AGC（自动增益控制）预处理和PHE（音调谐波增强）。通过这种方法，减少音乐信号中的停顿次数，提高音乐的感知音质。

2. 发明申请

US20090299740A1 METHOD OF PROCESSING AUDIO SIGNALS FOR IMPROVING THE QUALITY OF OUTPUT AUDIO SIGNAL WHICH IS TRANSFERRED TO SUBSCRIBER'S TERMINAL OVER NETWORK AND AUDIO SIGNAL PRE-PROCESSING APPARATUS OF ENABLING THE METHOD 有权
标题翻译：处理用于改善输出音频信号质量的音频信号的方法，该音频信号被传送给用户的网络终端和音频信号预处理装置使用该方法
公开(公告)号：US20090299740A1
公开(公告)日：2009-12-03
申请号：US12160090
申请日：2007-01-08
申请人： Jae Woong Jeong , Seop Hyeong Park , Jong Kyu Ryu
发明人： Jae Woong Jeong , Seop Hyeong Park , Jong Kyu Ryu
IPC分类号： G10L21/02 , G10L21/00 , G10L19/00
CPC分类号： G10L21/00 , G10L19/265 , G10L25/78 , H04M3/42017
摘要： A method of pre-processing an audio signal transmitted to a user terminal via a communication network and an apparatus using the method are provided. The method of pre-processing the audio signal may prevent deterioration of a sound quality of the audio signal transmitted to the user terminal by pre-processing the audio signal, and by enabling a codec module, encoding the audio signal, to determine the audio signal as a speech signal. Also, the method of pre-processing the audio signal may improve a probability that the codec module may determine a corresponding audio signal as a speech when the audio signal is transmitted via the communication network by pre-processing the audio signal using a speech codec.
摘要翻译：提供了一种通过通信网络预先处理发送到用户终端的音频信号的方法和使用该方法的装置。预处理音频信号的方法可以通过预处理音频信号来防止发送到用户终端的音频信号的声音质量的恶化，并且通过使能编码音频信号的编解码器模块来确定音频信号作为语音信号。此外，预处理音频信号的方法可以通过使用语音编解码器预处理音频信号来提高当通过通信网络发送音频信号时编解码器模块可以将相应音频信号确定为语音的概率。

3. 发明申请

US20120179459A1 METHOD AND APPARATUS FOR PROCESSING AUDIO SIGNALS 有权
标题翻译：处理音频信号的方法和装置
公开(公告)号：US20120179459A1
公开(公告)日：2012-07-12
申请号：US13426411
申请日：2012-03-21
申请人： Jae Woong Jeong , Seop Hyeong Park , Jong Kyu Ryu
发明人： Jae Woong Jeong , Seop Hyeong Park , Jong Kyu Ryu
IPC分类号： G10L21/02 , G10L11/02 , G10L19/00
CPC分类号： G10L21/00 , G10L19/265 , G10L25/78 , H04M3/42017
摘要： A method of pre-processing an audio signal transmitted to a user terminal via a communication network and an apparatus using the method are provided. The method of pre-processing the audio signal may prevent deterioration of a sound quality of the audio signal transmitted to the user terminal by pre-processing the audio signal, and by enabling a codec module, encoding the audio signal, to determine the audio signal as a speech signal. Also, the method of pre-processing the audio signal may improve a probability that the codec module may determine a corresponding audio signal as a speech when the audio signal is transmitted via the communication network by pre-processing the audio signal using a speech codec.
摘要翻译：提供了一种通过通信网络预先处理发送到用户终端的音频信号的方法和使用该方法的装置。预处理音频信号的方法可以通过预处理音频信号来防止发送到用户终端的音频信号的声音质量的恶化，并且通过使能编码音频信号的编解码器模块来确定音频信号作为语音信号。此外，预处理音频信号的方法可以通过使用语音编解码器预处理音频信号来提高当通过通信网络发送音频信号时编解码器模块可以将相应音频信号确定为语音的概率。

4. 发明授权

US08145479B2 Improving the quality of output audio signal,transferred as coded speech to subscriber's terminal over a network, by speech coder and decoder tandem pre-processing 有权
标题翻译：通过语音编码器和解码器串联预处理提高输出音频信号的质量，作为编码语音传输到用户终端
公开(公告)号：US08145479B2
公开(公告)日：2012-03-27
申请号：US12160090
申请日：2007-01-08
申请人： Jae Woong Jeong , Seop Hyeong Park , Jong Kyu Ryu
发明人： Jae Woong Jeong , Seop Hyeong Park , Jong Kyu Ryu
IPC分类号： G10L21/02 , G10L11/02 , G10L19/00
CPC分类号： G10L21/00 , G10L19/265 , G10L25/78 , H04M3/42017
摘要： A method of pre-processing an audio signal transmitted to a user terminal via a communication network and an apparatus using the method are provided. The method of pre-processing the audio signal may prevent deterioration of a sound quality of the audio signal transmitted to the user terminal by pre-processing the audio signal, and by enabling a codec module, encoding the audio signal, to determine the audio signal as a speech signal. The method of pre-processing may include encoding the audio signal using a speech codec and decoding the encoded audio signal using the speech codec. A codec module, transmitting the decoded audio signal to the user terminal via the communication network, may determine whether a speech interval or a speechless interval with respect to at least one frame is included in the audio signal and transmit at least one parameter with respect to the at least one frame as a result of the determination.
摘要翻译：提供了一种通过通信网络预先处理发送到用户终端的音频信号的方法和使用该方法的装置。预处理音频信号的方法可以通过预处理音频信号来防止发送到用户终端的音频信号的声音质量的恶化，并且通过使能编码音频信号的编解码器模块来确定音频信号作为语音信号。预处理的方法可以包括使用语音编解码器对音频信号进行编码，并且使用语音编解码器对编码的音频信号进行解码。通过通信网络向解码的音频信号发送解码的音频信号的编解码器模块可以确定音频信号中是否包括关于至少一个帧的语音间隔或无语音间隔，并且相对于作为确定的结果的至少一个帧。

5. 发明授权

US08359198B2 Pre-processing and speech codec encoding of ring-back audio signals transmitted over a communication network to a subscriber terminal 有权
标题翻译：通过通信网络向用户终端发送的回铃音频信号的预处理和语音编解码器编码
公开(公告)号：US08359198B2
公开(公告)日：2013-01-22
申请号：US13426411
申请日：2012-03-21
申请人： Jae Woong Jeong , Seop Hyeong Park , Jong Kyu Ryu
发明人： Jae Woong Jeong , Seop Hyeong Park , Jong Kyu Ryu
IPC分类号： G10L21/02 , G10L11/02
CPC分类号： G10L21/00 , G10L19/265 , G10L25/78 , H04M3/42017
摘要： A method of pre-processing an audio signal transmitted to a user terminal via a communication network and an apparatus using the method are provided. The method of pre-processing the audio signal may prevent deterioration of a sound quality of the audio signal transmitted to the user terminal by pre-processing the audio signal, and by enabling a codec module, encoding the audio signal, to determine the audio signal as a speech signal. The method of pre-processing may include separating the audio signal into channels, measuring the channel energy for each of the channels, selecting a specific channel energy, and amplifying the specific channel energy. The method may include encoding an audio signal using a speech codec and/or decoding an encoded audio signal using the speech codec.
摘要翻译：提供了一种通过通信网络预先处理发送到用户终端的音频信号的方法和使用该方法的装置。预处理音频信号的方法可以通过预处理音频信号来防止发送到用户终端的音频信号的声音质量的恶化，并且通过使能编码音频信号的编解码器模块来确定音频信号作为语音信号。预处理的方法可以包括将音频信号分离成信道，测量每个信道的信道能量，选择特定的信道能量和放大特定的信道能量。该方法可以包括使用语音编解码器对音频信号进行编码和/或使用语音编解码器解码编码的音频信号。

6. 发明授权

US5903679A Method for decoding signal vector-quantized by blocks 失效
标题翻译：用于对由块进行矢量量化的信号进行解码的方法
公开(公告)号：US5903679A
公开(公告)日：1999-05-11
申请号：US843248
申请日：1997-04-14
申请人： Seop Hyeong Park
发明人： Seop Hyeong Park
IPC分类号： G06T9/00 , G06K9/00
CPC分类号： G06T9/008
摘要： A method for producing a decoded signal approximate to an original signal upon decoding a quantized signal which is produced by vector-quantizing every block of an original signal or by vector-quantizing every block of a transform coefficient obtained after every block of the original signal is processed by a transform process such as a discrete cosine transform (DCT). The method includes the steps of determining a narrow vector quantization constraint set domain in which each vector or block divided from the decoded signal exists prior to the vector quantization at the transmitting site, and outputting a signal indicative of the determined narrow vector quantization constraint set domain, and performing a projection for returning a vector existing beyond the narrow vector quantization constraint set domain to its original domain, and repeating the projection for returning a vector existing beyond the narrow vector quantization constraint set domain to its original domain.
摘要翻译：一种在对通过对原始信号的每个块进行向量化的量化信号或者通过对原始信号的每个块之后获得的变换系数的每个块进行向量化的方式来产生接近原始信号的解码信号的方法，通过离散余弦变换（DCT）等变换处理进行处理。该方法包括以下步骤：确定窄矢量量化约束集域，其中在发送站点处的向量量化之前存在从解码信号分割的每个矢量或块，并输出指示所确定的窄矢量量化约束集合域的信号并且执行用于将存在于窄向量量化约束集域之外的向量返回到其原始域的投影，并且重复用于将存在于窄向量量化约束集域之外的向量返回到其原始域的投影。

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