-
81.发明申请公开(公告)号：US20050228652A1
公开(公告)日：2005-10-13
申请号：US10505100
申请日：2003-02-20
CPC分类号： G10L19/12
摘要： At the speech encoding end, upon generation of an fixed excitation vector, the shape of an excitation vector output from pulse excitation codebook 301 is identified in pulse excitation vector shape identifier 302, a dispersion vector used for excitation vectors of the shape is output from dispersion vector storage 304, and, in dispersion vector convolution processor 303, dispersion vector convolution processing of the excitation vector is performed. In particular, when a pulse excitation vector having a specific shape of high frequency of use is output from pulse excitation codebook 301, pulse excitation vector shape identifier 302 controls dispersion vector storage 304 in such a way that an additional dispersion vector prepared dedicated to the pulse excitation vector is output. By this means, it is possible to provide a technology that improves the quality of decoded speech and that decodes speech more natural and audible to the user.
摘要翻译： 在语音编码结束时，在产生固定的激励矢量时，从脉冲激励码本301输出的激励矢量的形状在脉冲激励矢量形状识别符302中被识别，用于形状的激励矢量的色散矢量从色散 向量存储器304，并且在色散向量卷积处理器303中，执行激励矢量的色散向量卷积处理。 特别地，当从脉冲激励码本301输出具有高频用特定形状的脉冲激励矢量时，脉冲激励矢量形状识别器302以这样一种方式控制色散矢量存储器304，使得专用于脉冲的附加色散矢量 输出激励矢量。 通过这种方式，可以提供提高解码语音质量的技术，并且使用户更自然和可听地解码语音。
-
公开(公告)号：US06910008B1
公开(公告)日：2005-06-21
申请号：US09440093
申请日：1999-11-15
CPC分类号： G10L19/135 , G10L19/12 , G10L2019/0007 , G10L2019/0013
摘要： A random code vector reading section and a random codebook of a conventional CELP type speech coder/decoder are respectively replaced with an oscillator for outputting different vector streams in accordance with values of input seeds, and a seed storage section for storing a plurality of seeds. This makes it unnecessary to store fixed vectors as they are in a fixed codebook (ROM), thereby considerably reducing the memory capacity.
摘要翻译： 传统CELP型语音编码器/解码器的随机码矢量读取部分和随机码本分别被替换为根据输入种子的值输出不同矢量流的振荡器和用于存储多个种子的种子存储部分。 这使得不必像固定码本（ROM）一样存储固定向量，从而显着地降低了存储器容量。
-
公开(公告)号：US06804639B1
公开(公告)日：2004-10-12
申请号：US09582039
申请日：2000-06-21
申请人： Hiroyuki Ehara
发明人： Hiroyuki Ehara
IPC分类号： G10L1912
CPC分类号： G10L19/08
摘要： A CELP type speech coder performs quantization of pitch differential value on pitch information between subframes. The coder limits the number of preliminary selected candidates using threshold processing. The coder includes specialized pitches for a subframe on which quantization of pitch differential value is not applied. When pitch preliminary selection is performed on such a subframe, the coder limits the number of preliminarily selected candidates using threshold processing to avoid outputting, as a preliminarily selected candidate, the above-mentioned specialized pitches. The coder improves the accuracy of the pitch search (adaptive codebook search) while avoiding adverse effects on the quantization of pitch differential value.
摘要翻译： CELP型语音编码器对子帧之间的音调信息进行音调差分值的量化。 编码器使用阈值处理来限制初步选择的候选者的数量。 编码器包括用于不施加音调差分值的量化的子帧的专用音调。 当在这样的子帧上执行音调预选时，编码器使用阈值处理来限制预先选择的候选的数量，以避免作为预先选择的候选者输出上述专门音高。 编码器提高音调搜索的精度（自适应码本搜索），同时避免对音调差分值的量化的不利影响。
-
公开(公告)号：US06330534B1
公开(公告)日：2001-12-11
申请号：US09440087
申请日：1999-11-15
IPC分类号： G10L1917
CPC分类号： G10L19/135 , G10L19/12 , G10L2019/0007 , G10L2019/0013
摘要： A random code vector reading section and a random codebook of a conventional CELP type speech coder/decoder are respectively replaced with an oscillator for outputting different vector streams in accordance with values of input seeds, and a seed storage section for storing a plurality of seeds. This makes it unnecessary to store fixed vectors as they are in a fixed codebook (ROM), thereby considerably reducing the memory capacity.
摘要翻译： 传统CELP型语音编码器/解码器的随机码矢量读取部分和随机码本分别被替换为根据输入种子的值输出不同矢量流的振荡器和用于存储多个种子的种子存储部分。 这使得不必像固定码本（ROM）一样存储固定向量，从而显着地降低了存储器容量。
-
85.发明授权Voice encoder, voice decoder, recording medium on which program for realizing voice encoding/decoding is recorded and mobile communication apparatus 失效语音编码器，语音解码器，用于实现语音编码/解码的程序的记录介质和移动通信装置公开(公告)号：US06226604B1
公开(公告)日：2001-05-01
申请号：US09051137
申请日：1998-04-01
申请人： Hiroyuki Ehara , Toshiyuki Morii
发明人： Hiroyuki Ehara , Toshiyuki Morii
IPC分类号： G10L1908
CPC分类号： G10L19/12 , G10L2019/0005
摘要： The present invention intends to enhance a sound quality of a sound source generating portion in a CELP type voice encoding device and a CELP type voice decoding device. A pitch peak position of an adaptive code vector is obtained by a pitch peak position calculator 12, a window for emphasizing an amplitude of the pitch peak position is prepared by an amplitude emphasizing window generator 13, and an amplitude of a noise code vector corresponding to the pitch peak position is emphasized by an amplitude emphasizing window unit 16. Alternatively, pulse search positions are determined in such a manner that they become dense in a pitch peak position vicinity and coarse in the other portions. Based on the determined search positions, a pulse position searching is performed. Alternatively, the pitch peak position and pitch cycle information in the immediately previous sub-frame and the pitch cycle information in the present sub-frame are used to backward adapt and switch a sound source constitution. Sound quality is thus enhanced, while an influence of a transmission line error is inhibited from being propagated.
摘要翻译： 本发明旨在提高CELP型语音编码装置和CELP型语音解码装置中的声源生成部的声音质量。 通过音调峰值位置计算器12获得自适应码矢量的音调峰值位置，由振幅增强窗口发生器13准备用于强调音调峰值位置的振幅的窗口，并且对应于 音调峰值位置由幅度增强窗单元16强调。或者，脉冲搜索位置以这样的方式确定，使得它们在音调峰值位置附近变得致密并且在其它部分中变粗。 基于确定的搜索位置，执行脉冲位置搜索。 或者，使用前一子帧中的音调峰值位置和音调周期信息以及本子帧中的音调周期信息来反向适应和切换声源结构。 从而增强了音质，同时抑制了传输线误差的影响。
-
公开(公告)号：US09031000B2
公开(公告)日：2015-05-12
申请号：US13614507
申请日：2012-09-13
摘要： A transmitting side UE1 and a receiving side UE2 are both connected to a given E-Node B. The transmitting side UE1 divides a transmission packet addressed to UE2 into a first packet to be transmitted via a route not passing through a given access gateway and a second packet to be transmitted via a route passing through the given access gateway, and the packets are transmitted to the given E-Node B. The E-Node B transmits the first packet to UE2 and also transmits the second packet to the access gateway. The access gateway receives the second packet and transmits it to the E-Node B. The E-Node B receives the second packet transmitted from the access gateway and transmits it to UE2. UE2 receives the first packet and the second packet and synthesizes them to restore the initial packet.
摘要翻译： 发送侧UE1和接收侧UE2都连接到给定的E节点B.发送侧UE1将寻址到UE2的发送分组划分成要经由给定接入网关的路由发送的第一分组，并且 通过经过给定接入网关的路由发送的第二分组，并且将分组发送给给定的E节点B.E节点B向UE2发送第一分组，并将第二分组发送到接入网关。 接入网关接收第二个分组并将其发送给E节点B.E节点B接收从接入网关发送的第二个分组，并将其发送给UE2。 UE2接收第一个分组和第二个分组，并将其合成以恢复初始分组。
-
公开(公告)号：US08838443B2
公开(公告)日：2014-09-16
申请号：US13505093
申请日：2010-11-11
IPC分类号： G10L19/14 , G10L19/12 , G10L19/00 , G10L21/038 , G10L19/24
CPC分类号： G10L21/038 , G10L19/24
摘要： There is disclosed an encoder apparatus whereby, when a band expanding technique for encoding, based on the spectral data of a lower frequency portion, the spectral data of a higher frequency portion is applied to a lower layer in a hierarchical encoding/decoding system, an efficient encoding can be performed in an upper layer as well, thereby improving the decoded-signal quality. In an encoder apparatus (101), a second layer decoder unit (207) calculates a spectrum (differential spectrum), which is to be encoded in a third layer encoder unit (210) that is an upper layer of the second layer decoder unit (207), by applying such an ideal gain (first gain parameter a1) that minimizes the energy of the differential spectrum.
摘要翻译： 公开了一种编码器装置，其中当基于较低频率部分的频谱数据进行编码的频带扩展技术时，较高频率部分的频谱数据被应用于分级编码/解码系统中的较低层， 也可以在上层执行高效编码，从而提高解码信号质量。 在编码器装置（101）中，第二层解码单元（207）计算要在第二层解码器单元的上层的第三层编码器单元（210）中编码的频谱（差分频谱） 207），通过应用使差分频谱的能量最小化的理想增益（第一增益参数a1）。
-
88.发明授权Scalable encoding apparatus, scalable decoding apparatus, scalable encoding method, scalable decoding method, communication terminal apparatus, and base station apparatus 有权可扩展编码装置，可伸缩解码装置，可伸缩编码方法，可伸缩解码方法，通信终端装置和基站装置公开(公告)号：US08712767B2
公开(公告)日：2014-04-29
申请号：US12913799
申请日：2010-10-28
申请人： Hiroyuki Ehara
发明人： Hiroyuki Ehara
IPC分类号： G10L19/00
CPC分类号： G10L19/07 , G10L19/24 , G10L19/265 , G10L2019/0005
摘要： A scalable encoding apparatus, a scalable decoding apparatus and the like are disclosed which can achieve a band scalable LSP encoding that exhibits both a high quantization efficiency and a high performance. In these apparatuses, a narrow band-to-wide band converter receives and converts a quantized narrow band LSP to a wide band, and then outputs the quantized narrow band LSP as converted (i.e., a converted wide band LSP parameter) to an LSP-to-LPC converter. The LSP-to-LPC converter converts the quantized narrow band LSP as converted to a linear prediction coefficient and then outputs it to a pre-emphasizer. The pre-emphasizer calculates and outputs the pre-emphasized linear prediction coefficient to an LPC-to-LSP converter. The LPC-to-LSP converter converts the pre-emphasized linear prediction coefficient to a pre-emphasized quantized narrow band LSP as wide band converted, and then outputs it to a prediction quantizer.
摘要翻译： 公开了可伸缩编码装置，可伸缩解码装置等，其可以实现具有高量化效率和高性能的频带可缩放LSP编码。 在这些装置中，窄带宽宽带转换器将量化的窄带LSP接收并转换为宽带，然后将经转换的量化窄带LSP（即转换的宽带LSP参数）输出到LSP- 到LPC转换器。 LSP到LPC转换器将量化的窄带LSP转换成线性预测系数，然后将其输出到预加重器。 预加重器计算并将预先强调的线性预测系数输出到LPC-LSP转换器。 LPC-to-LSP转换器将预先强调的线性预测系数转换为宽带转换的预先强调的量化窄带LSP，然后将其输出到预测量化器。
-
89.发明授权Parameter decoding device, parameter encoding device, and parameter decoding method 有权参数解码装置，参数编码装置和参数解码方法公开(公告)号：US08468015B2
公开(公告)日：2013-06-18
申请号：US12514094
申请日：2007-11-09
申请人： Hiroyuki Ehara
发明人： Hiroyuki Ehara
IPC分类号： G10L19/00
CPC分类号： G10L19/12 , G10L19/005 , G10L19/04 , G10L19/07
摘要： A parameter decoding device performs a parameter compensation process so as to suppress degradation of a main observation quality in a prediction quantization. The parameter decoding device includes first amplifiers which multiply inputted quantization prediction residual vectors by a weighting coefficient. A further amplifier multiplies the preceding frame decoding LSF vector yn−1 by the weighting coefficient. An additional amplifier multiplies the code vector xn+1 outputted from a codebook by the weighting coefficient β0. An adder calculates the total of the vectors outputted from the amplifiers, the further amplifier, and the additional amplifier. A selector switch selects the vector outputted from the adder if the frame erasure coding Bn of the current frame indicates that ‘the n-th frame is an erased frame’ and the frame erasure coding Bn+1 of the next frame indicates that ‘the n+1-th frame is a normal frame’.
摘要翻译： 参数解码装置进行参数补偿处理，以抑制预测量化中的主观察质量的劣化。 参数解码装置包括将输入的量化预测残差矢量乘以加权系数的第一放大器。 另外的放大器将前一帧解码LSF矢量yn-1乘以加权系数。 附加的放大器将从码本输出的码矢量xn + 1乘以加权系数β0。 加法器计算从放大器，另外的放大器和附加放大器输出的矢量的总和。 如果当前帧的帧擦除编码Bn表示“第n帧是被擦除的帧”，则选择开关选择从加法器输出的矢量，并且下一帧的帧擦除编码Bn + 1指示“n + 1帧是正常帧'。
-
公开(公告)号：US20130010961A1
公开(公告)日：2013-01-10
申请号：US13614507
申请日：2012-09-13
摘要： A transmitting side UE1 and a receiving side UE2 are both connected to a given E-Node B. The transmitting side UE1 divides a transmission packet addressed to UE2 into a first packet to be transmitted via a route not passing through a given access gateway and a second packet to be transmitted via a route passing through the given access gateway, and the packets are transmitted to the given E-Node B. The E-Node B transmits the first packet to UE2 and also transmits the second packet to the access gateway. The access gateway receives the second packet and transmits it to the E-Node B. The E-Node B receives the second packet transmitted from the access gateway and transmits it to UE2. UE2 receives the first packet and the second packet and synthesizes them to restore the initial packet.
摘要翻译： 发送侧UE1和接收侧UE2都连接到给定的E节点B.发送侧UE1将寻址到UE2的发送分组划分成要经由给定接入网关的路由发送的第一分组，并且 通过经过给定接入网关的路由发送的第二分组，并且将分组发送给给定的E节点B.E节点B向UE2发送第一分组，并将第二分组发送到接入网关。 接入网关接收第二个分组并将其发送给E节点B.E节点B接收从接入网关发送的第二个分组，并将其发送给UE2。 UE2接收第一个分组和第二个分组，并将其合成以恢复初始分组。
-
-
-
-
-
-
-
-
-
搜索结果
134 条记录 (耗时 0.033 秒)
