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1.发明申请Transcoder for speech codecs of different CELP type and method therefor 有权用于不同CELP类型的语音编解码器的转码器及其方法公开(公告)号：US20050010403A1
公开(公告)日：2005-01-13
申请号：US10749748
申请日：2003-12-30
CPC分类号： G10L19/173 , G10L19/12
摘要： A transcoder for use between speech codecs using different Code-Excited Linear Prediction (CELP) type and a method therefor are disclosed. The transcoder includes a decoding unit of an input CELP codec, a transcoding filter, a transcoding filter design unit, and an encoding unit of an output CELP codec. By substituting a post-filter and a perceptual weighting filter of a prior art with one transcoding filter, the calculation amount of the transcoder is reduced, and speech quality decoded at a receiving end is improved.
摘要翻译： 公开了使用不同的代码激励线性预测（CELP）类型的语音编解码器及其方法之间使用的代码转换器。 代码转换器包括输入CELP编解码器，代码转换滤波器，代码转换滤波器设计单元和输出CELP编解码器的编码单元的解码单元。 通过使用一个代码转换滤波器代替现有技术的后置滤波器和感知加权滤波器，降低了代码转换器的计算量，并提高了在接收端解码的语音质量。
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公开(公告)号：US20050143979A1
公开(公告)日：2005-06-30
申请号：US11006447
申请日：2004-12-06
申请人： Mi Lee , Do Kim , Jongmo Sung , Hyun Woo Kim , Hong Kang , Sung Jung , Dae Youn , Hong Kim
发明人： Mi Lee , Do Kim , Jongmo Sung , Hyun Woo Kim , Hong Kang , Sung Jung , Dae Youn , Hong Kim
CPC分类号： G10L19/24
摘要： There is provided a speech coding/decoding apparatus and method, in which the input speech signals are classified into several classes in accordance with characteristics of the input speech signals and the input speech signals are coded using frame sizes, quantizer structures, and bit assignment methods corresponding to the determined classes, or in which the frame sizes can be adjusted in accordance with network conditions or codec type of a counter part. Therefore, by optimally adjusting the frame size, the quantizer structure, and the bit assignment method in accordance with the characteristics of input speech, it is possible to improve the performance of the speech coding apparatus, and by adjusting the frame size in accordance with the speech codec type of a counter part, it is also possible to reduce the total end-to-end delay.
摘要翻译： 提供了一种语音编码/解码装置和方法，其中根据输入的语音信号的特性将输入的语音信号分为几类，并且使用帧大小，量化器结构和比特分配方法对输入的语音信号进行编码 对应于所确定的类别，或者可以根据网络条件或计数器部件的编解码器类型来调整帧大小。 因此，通过根据输入语音的特性优化调整帧大小，量化器结构和比特分配方法，可以提高语音编码装置的性能，并且可以通过根据 语音编解码器类型的计数器部件，也可以减少总的端到端延迟。
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公开(公告)号：US20050010402A1
公开(公告)日：2005-01-13
申请号：US10749569
申请日：2003-12-30
CPC分类号： G10L19/125
摘要： A wide-band speech coder and a method thereof and a wide-band speech decoder and a method thereof are provided. The wide-band speech coder includes a speech characteristic classification unit, which stipulates a characteristic of speech corresponding to a current frame statistically using an open-circuit pitch value and a linear prediction coefficient in which a wide-code speech signal to be coded is perceptual weigh filtered, an adaptive codebook retrieving unit, which retrieves a pitch delay value around the open-circuit pitch value, calculates a pitch gain value, generates an adaptive codebook contribution signal corresponding to the retrieved pitch delay value, and outputs a difference between the generated adaptive codebook contribution signal and the perceptual weigh filtered signal as a first fixed codebook target signal, a first fixed codebook retrieving unit, which obtains a first fixed codebook index that can express the first fixed codebook target signal most properly, and a first fixed codebook gain value, generates a first fixed codebook contribution signal corresponding to the retrieved index, and outputs a difference between the first generated fixed codebook contribution signal and the first fixed codebook target signal as a second fixed codebook target signal, a second fixed codebook retrieving unit, which includes at least two second fixed codebooks according to a speech characteristic, selects a second fixed codebook according to the speech characteristic, and retrieves second fixed codebook indices that can express the second fixed codebook target signal most properly, and second fixed codebook gain values, and a parameter multiplexer, which quantizes and multiplexes the speech characteristic information, the pitch delay value, the pitch gain value, the first fixed codebook index, the first fixed codebook gain value, the second fixed codebook indices, and the second fixed codebook gain values, makes them as a bit stream, and transmits the bit stream to an external speech decoding terminal.
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公开(公告)号：US20210114134A1
公开(公告)日：2021-04-22
申请号：US16658010
申请日：2019-10-18
申请人： Hong Kang , David Kang
发明人： Hong Kang , David Kang
IPC分类号： B23K11/30
摘要： The seam welder conductive mechanism is the main part of the resistance seam welding machine. When the electrode wheel rolling on the welded parts, the Seam welder conductive mechanism will withstand the high press of electrode force and pass the high welding current from welding transformer to the electrode wheels of seam welding machine. Because of these two characteristics the following factors must be considered during the design of seam welder conductive mechanism. First of all, in order to withstand the high press of electrode force two bearings are introduced in the mechanism, the bearing should be lubricated and also isolated from the welding current in order to get long working time without damaging the bearing. Second of all, in order to pass the high welding current, the conductive pair with relative motion must be keep conduction all the time with certain surface pressure and lubrication, the conductive pair without relative motion must be keep conduction all the time with big surface pressure. Because of the high current pass through the conductive mechanism must be cooled with water during working. This is a mechanism equipped with water cooling for Electrode, main shaft, and Silver-plate conductive pads.
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公开(公告)号：US08504358B2
公开(公告)日：2013-08-06
申请号：US12913780
申请日：2010-10-28
申请人： Hong Kang , Guo-Zhi Ding , Chi-Ming Lu
发明人： Hong Kang , Guo-Zhi Ding , Chi-Ming Lu
CPC分类号： G11B20/10527 , G11B2020/10574 , H04M2250/74
摘要： In a voice recording equipment and method, voice data from a speaker is received using a microphone. Threshold values T1 and T2 of surrounding environment of the voice recording equipment are determined. If an intensity of the voice data is less than or equal to the threshold value T2, the voice recording is stopped and the speaker is informed that the voice data is not useful. If the intensity of the voice data is greater than the threshold values, the voice data is stored into a storage unit.
摘要翻译： 在录音设备和方法中，使用麦克风接收来自扬声器的语音数据。 确定录音设备周围环境的阈值T1和T2。 如果语音数据的强度小于或等于阈值T2，则停止语音记录，并且通知扬声器语音数据不可用。 如果语音数据的强度大于阈值，则语音数据被存储到存储单元中。
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