-
51.发明授权Method and apparatus for coding signal while adaptively allocating number of pulses 失效用于编码信号的方法和装置，同时自适应地分配脉冲数
公开(公告)号：US5857168A
公开(公告)日：1999-01-05
申请号：US840318
申请日：1997-04-14
申请人： Kazunori Ozawa
发明人： Kazunori Ozawa
CPC分类号： G10L19/10 , G10L19/0208
摘要： A signal coding apparatus includes a signal dividing section for dividing an input signal in units of frames and in units of bands, a pulse allocating section for determining a performance request value for each of the bands, for determining a number of pulses for each of the bands from the performance request value for the band, and for adaptively allocating the determined numbers of pulses to the bands for every frame, and a plurality of coding circuits respectively provided for the bands. Each of said plurality of coding circuits generates a transmission signal for a corresponding band for every frame based on the number of pulses allocated to the corresponding band.
摘要翻译： 一种信号编码装置，包括：信号分割部，用于以帧为单位，以带为单位划分输入信号;脉冲分配部，用于确定每个频带的性能请求值，用于确定每个频带的每个频带的脉冲数 频带，并且针对每个帧自适应地将确定的脉冲数分配给频带，以及分别为频带提供的多个编码电路。 所述多个编码电路中的每一个基于分配给相应频带的脉冲数，为每帧产生相应频带的发送信号。
-
公开(公告)号：US5666465A
公开(公告)日：1997-09-09
申请号：US355295
申请日：1994-12-12
申请人： Kazunori Ozawa
发明人： Kazunori Ozawa
CPC分类号： G10L19/07
摘要： A speech parameter encoder capable of encoding spectrum parameters at a bit rate of 1 kb/s or less with comparatively small amount of operations and memory capacity. A spectrum parameter calculation unit 130 derives a spectrum parameter representing the spectrum envelope of a discrete input speech signal through division thereof into frames each having a predetermined time length. A weighted coefficient calculation unit 150 derives a weighted coefficient corresponding to an auditory masking threshold value through derivation thereof from the speech signal. A spectrum parameter quantization unit 160 receives the weighted coefficient and the spectrum parameter and quantizes the spectrum parameter through search of a codebook such as to minimize the weighting distortion based on the weighted coefficient.
摘要翻译： 一种语言参数编码器，其能够以相对少的操作量和存储容量以1kb / s或更小的比特率对频谱参数进行编码。 频谱参数计算单元130通过将离散输入语音信号的频谱包络分解为具有预定时间长度的帧来导出表示离散输入语音信号的频谱包络的频谱参数。 加权系数计算单元150通过从语音信号中推导出与听觉掩蔽阈值对应的加权系数。 频谱参数量化单元160接收加权系数和频谱参数，并通过搜索码本来量化频谱参数，例如基于加权系数来最小化加权失真。
-
公开(公告)号：US5142584A
公开(公告)日：1992-08-25
申请号：US554999
申请日：1990-07-20
申请人： Kazunori Ozawa
发明人： Kazunori Ozawa
摘要： A speech coding method in which spectrum parameter representing a spectrum envelope and a pitch parameter representing a pitch are obtained from an input discrete speech signal. A frame interval is divided into subintervals in accordance with the pitch parameter. A sound source signal in one of the subintervals is obtained by obtaining a multipulse with respect to a difference signal obtained by performing prediction on the basis of a past sound source signal. Correction information for correcting at least one of the amplitude and the phase of the sound source signal are obtained and output in other pitch intervals in the frame.
-
公开(公告)号：US4716592A
公开(公告)日：1987-12-29
申请号：US565804
申请日：1983-12-27
申请人： Kazunori Ozawa , Takashi Araseki
发明人： Kazunori Ozawa , Takashi Araseki
CPC分类号： G10L19/10
摘要： A voice encoding system is constituted by a short time voice signal series producing circuit inputted with a discrete voice signal series for dividing the same at each short time; a parameter extracting circuit for extracting a parameter representative of a spectrum envelope from the short time voice signal series and encoding the parameter; an impulse response series calculating circuit for calculating the impulse response series based on the parameter representative of the spectrum envelope; an autocorrelation function sequence calculating circuit utilizing the impulse response series; a cross-correlation function sequence calculating circuit utilizing the impulse response series and the short time voice signal series; a circuit for calculating and encoding an excitation signal series of the short time voice signal series by utilizing the autocorrelation function sequence; and a circuit for combining and outputting a code of the parameter representative of the spectrum envelope and a code representative of the excitation signal series. With the system, high quality voice encoding can be made at a transmission rate of less than 10k bits/second with a relatively small amount of calculation.
摘要翻译： 语音编码系统由短时语音信号序列产生电路构成，该电路输入用于在短时间内对其分频的离散语音信号序列; 参数提取电路，用于从短时语音信号序列中提取表示频谱包络的参数，并对参数进行编码; 脉冲响应串行计算电路，用于基于表示频谱包络的参数来计算脉冲响应序列; 利用脉冲响应序列的自相关函数序列计算电路; 利用脉冲响应序列和短时语音信号序列的互相关函数序列计算电路; 用于通过利用自相关函数序列来计算和编码短时语音信号序列的激励信号序列的电路; 以及用于组合和输出表示频谱包络的参数的代码和表示激励信号序列的代码的电路。 利用该系统，可以以相对少的计算量以低于10k位/秒的传输速率进行高质量的语音编码。
-
公开(公告)号：US09350764B2
公开(公告)日：2016-05-24
申请号：US13254307
申请日：2010-03-11
申请人： Kazunori Ozawa
发明人： Kazunori Ozawa
CPC分类号： H04L65/1016 , H04L65/102 , H04M7/125 , H04W88/16
摘要： A gateway apparatus receives a call control signal and/or a packet with voice data stored therein in a predetermined protocol from a packet transfer apparatus on a mobile high-speed network and converts the received protocol into a circuit-switched protocol used when an RNC connects to a circuit switching equipment on a mobile circuit-switched network, for output to the circuit switching equipment The gateway apparatus, on receipt of a call process signal and/or a voice signal, from the circuit switching equipment, converts the received protocol for output to the packet transfer apparatus.
摘要翻译： 网关装置从移动高速网络上的分组传送装置接收具有预定协议的话音数据的呼叫控制信号和/或分组，并将接收到的协议转换成RNC连接时使用的电路交换协议 涉及移动电路交换网络上的电路交换设备，用于输出到电路交换设备网关设备在接收到来自电路交换设备的呼叫处理信号和/或语音信号时，转换接收的协议以输出 到分组传送装置。
-
56.发明授权Remote mobile communication system, server device, and remote mobile communication system control method 有权远程移动通信系统，服务器设备和远程移动通信系统控制方法公开(公告)号：US09118953B2
公开(公告)日：2015-08-25
申请号：US13697716
申请日：2011-05-09
申请人： Kazunori Ozawa
发明人： Kazunori Ozawa
IPC分类号： G01R31/08 , H04N21/414 , H04N21/2343 , H04N21/258 , H04N21/274 , H04N21/6375 , H04L29/06 , H04W4/18 , H04W28/04 , H04W28/06
CPC分类号： H04N21/41407 , H04L65/4084 , H04L65/80 , H04N21/2343 , H04N21/234309 , H04N21/25825 , H04N21/274 , H04N21/6375 , H04W4/18 , H04W28/04 , H04W28/06
摘要： A server device includes: a storage unit that, upon receiving content storage instruction information from a mobile terminal via a packet forwarding device in a mobile network and a content stream or content file, stores the content stream or content file; a virtual client unit that, upon receiving content reproduction instruction information from the mobile terminal, reads, decodes and reproduces a content stream or content file stored in the storage unit to generate display screen data; and an encoder unit that transmits an encoding result obtained by compression-encoding part or all of the display screen data as a packet to the packet forwarding device.
摘要翻译： 服务器装置包括：存储单元，其经由移动网络中的分组转发装置和内容流或内容文件从移动终端接收到内容存储指示信息时，存储内容流或内容文件; 虚拟客户端单元，其在从所述移动终端接收到内容再现指示信息时，读取，解码和再现存储在所述存储单元中的内容流或内容文件，以生成显示屏幕数据; 以及编码器单元，其通过将作为分组的部分或全部显示画面数据进行压缩编码而获得的编码结果发送到分组转发装置。
-
57.发明授权公开(公告)号：US09112961B2
公开(公告)日：2015-08-18
申请号：US13394796
申请日：2010-09-15
申请人： Kazunori Ozawa
发明人： Kazunori Ozawa
CPC分类号： H04M3/2236 , H04L43/028 , H04L43/0829 , H04L43/0858 , H04L43/0864 , H04L43/087 , H04L65/1006 , H04L65/1069 , H04L65/608 , H04L65/80 , H04M7/006 , H04M2207/185
摘要： During audio communication between terminals, an audio quality analyzing device picks up from a network a packet containing a bit stream obtained by compression encoding of audio sent by at least one of the terminals. The device has an audio quality analyzing unit that, in addition to analyzing a header of the packet picked up, performs at least one of: an analysis of a payload header and an analysis of the bit stream contained in the payload, detects deterioration in the quality of the audio communication service, and notifies a result of the detection to an upper level device.
摘要翻译： 在终端之间的音频通信期间，音频质量分析装置从网络拾取包含通过至少一个终端发送的音频的压缩编码而获得的比特流的分组。 该设备具有音频质量分析单元，除了分析所拾取的分组的头部之外，还执行以下至少一个：有效载荷报头的分析和有效载荷中包含的比特流的分析，检测 音频通信服务的质量，并将检测结果通知给上位装置。
-
公开(公告)号：US09001715B2
公开(公告)日：2015-04-07
申请号：US13000343
申请日：2009-07-14
申请人： Kazunori Ozawa
发明人： Kazunori Ozawa
CPC分类号： H04L12/66 , H04L12/6418 , H04L65/1006 , H04L65/1016 , H04L65/104 , H04M7/0072 , H04M7/123 , H04M7/1235 , H04M7/127 , H04M2201/50 , H04W88/16
摘要： A gateway apparatus arranged between the mobile circuit switched network and the mobile IMS network, includes a call control unit which converts a control signal output from the mobile circuit switched network into at least one of SIP and SDP to output a signal converted to the mobile IMS network and a conversion unit which receives a line switching protocol for an audio signal output from the mobile circuit switched network. The conversion unit decides, using at least one of SIP and SDP, output from the mobile IMS network and received by the call control unit, on whether the partner terminal is to be connected via the mobile IMS network to the mobile circuit switched network, via the mobile IMS network to a fixed network or via the mobile IMS network to a mobile broadband network, then converts the line switching protocol to one of different protocol, depending on a result of the decision, and outputs the protocol converted signal to the mobile IMS network (FIG. 2).
摘要翻译： 布置在移动电路交换网络和移动IMS网络之间的网关装置包括：呼叫控制单元，其将从移动电路交换网络输出的控制信号转换为SIP和SDP中的至少一个，以输出转换到移动IMS的信号 网络和转换单元，其接收从移动电路交换网络输出的音频信号的线路交换协议。 转换单元使用SIP和SDP中的至少一个，从移动IMS网络输出并由呼叫控制单元接收，通过移动IMS网络是否要将伙伴终端连接到移动电路交换网络，通过 移动IMS网络到固定网络或者经由移动IMS网络到移动宽带网络，然后根据决定的结果将线路交换协议转换为不同协议之一，并将协议转换的信号输出到移动IMS 网络（图2）。
-
公开(公告)号：US20150012586A1
公开(公告)日：2015-01-08
申请号：US14344497
申请日：2012-09-14
申请人： Kazunori Ozawa
发明人： Kazunori Ozawa
CPC分类号： H04L67/2847 , G06F21/10 , G06F2221/2101 , H04L47/11 , H04L47/14 , H04L67/42 , H04N21/23106 , H04N21/2393 , H04N21/44209 , H04N21/47202 , H04N21/6131 , H04N21/64738 , H04W4/06 , H04W8/18 , H04W28/0247
摘要： In a delivery network system, deliver a server that holds requested content is determined, using information included in a content request message from a communication terminal. A file or stream of the requested content is read from the determined server. When the content is moving image content, a bandwidth of a mobile network is estimated, based on a response signal or a congestion state notification signal from the communication terminal. The moving content is transmitted by controlling a timing of transmitting the read file or the read stream so as not exceed the estimated bandwidth.
摘要翻译： 在传送网络系统中，使用来自通信终端的内容请求消息中包含的信息来传送保存所请求内容的服务器。 从所确定的服务器读取所请求内容的文件或流。 当内容是运动图像内容时，基于来自通信终端的响应信号或拥塞状态通知信号来估计移动网络的带宽。 通过控制发送读取文件或读取流的定时以不超过估计的带宽来发送移动内容。
-
公开(公告)号：US08855123B2
公开(公告)日：2014-10-07
申请号：US13143140
申请日：2010-01-06
申请人： Kazunori Ozawa
发明人： Kazunori Ozawa
CPC分类号： H04L12/66 , H04L12/6418 , H04M7/123 , H04W36/023 , H04W88/16
摘要： When a location of a portable terminal connected to another network beyond a packet communication network side changes, the gateway apparatus that is arranged between a mobile circuit switching network and a packet communication network (IMS network) and that performs mutual conversion between a circuit switching protocol and a packet communication protocol to execute voice communication, exercises control such that at least one of a sequence number and a timestamp in a packet destined to a portable terminal and output to the packet communication network, is made to vary continuously before and after movement of the portable terminal, in case the portable terminal connected to a network beyond the packet communication network side, moves its location.
摘要翻译： 当连接到超过分组通信网络侧的另一网络的便携式终端的位置改变时，布置在移动电路交换网络和分组通信网络（IMS网络）之间并且在电路交换协议 以及用于执行语音通信的分组通信协议，进行控制，使得指定到便携式终端的分组中的序列号和时间戳中的至少一个输出到分组通信网络，使得在移动之前和之后不断变化 在便携式终端连接到超出分组通信网络侧的网络的情况下，移动终端移动其位置。
-
-
-
-
-
-
-
-
-
搜索结果
261 条记录 (耗时 0.031 秒)
