公开(公告)号：US5765128A

公开(公告)日：1998-06-09

申请号：US537454

申请日：1995-10-02

申请人： Mitsuru Tsuboi ,  Naoji Fujino ,  Noboru Kobayashi ,  Toshiaki Nobumoto ,  Toshiyuki Ohta ,  Yutaka Moriyama ,  Nobuhide Eguchi ,  Miki Murakawa

发明人： Mitsuru Tsuboi ,  Naoji Fujino ,  Noboru Kobayashi ,  Toshiaki Nobumoto ,  Toshiyuki Ohta ,  Yutaka Moriyama ,  Nobuhide Eguchi ,  Miki Murakawa

IPC分类号： G11B20/10 ,  G10L19/14 ,  H04B14/04 ,  H04L7/00 ,  H04L7/04 ,  H04L7/08 ,  G10L3/00

CPC分类号： G10L19/16 ,  H04L7/0083 ,  H04L7/041

摘要： An apparatus synchronizes a voice coder and a voice decoder which are of the vector-coding type in order to prevent a false synchronization even when a signal having the same period as a string of synchronizing bits is inputted. A noise component adding unit adds a noise component to an input voice signal. Therefore, even if the input voice signal has the same period as that of a string of synchronizing bits and is completely periodic, the periodicity of the input voice signal is lost by the added noise component. Based on the input voice signal which is no longer periodic, a vector-coding unit, a quantizing signal vector generating unit, and a code book index transmitting unit generate code book indexes and transmit the generated code book indexes to a voice decoder. Therefore, the voice decoder is prevented from developing a false synchronization.

摘要翻译： 即使当输入了与一串同步位相同的周期的信号时，装置同步具有向量编码类型的语音编码器和语音解码器，以便防止错误同步。 噪声分量添加单元将噪声分量添加到输入语音信号。 因此，即使输入语音信号与同步比特串的周期相同，并且是完全周期性的，所以输入语音信号的周期性被附加的噪声分量丢失。 基于不再周期性的输入语音信号，矢量编码单元，量化信号矢量生成单元和码本索引发送单元生成码本索引，并将生成的码本索引发送到语音解码器。 因此，防止语音解码器发生伪同步。

公开(公告)号：US06226768B1

公开(公告)日：2001-05-01

申请号：US09067105

申请日：1998-04-28

申请人： Kaoru Chujo ,  Naoji Fujino ,  Toshiaki Nobumoto ,  Tomonobu Takashima ,  Noboru Kobayashi ,  Miki Murakawa ,  Toshiyuki Ohta

发明人： Kaoru Chujo ,  Naoji Fujino ,  Toshiaki Nobumoto ,  Tomonobu Takashima ,  Noboru Kobayashi ,  Miki Murakawa ,  Toshiyuki Ohta

IPC分类号： G06F1100

CPC分类号： H04L7/048 ,  H03M13/33 ,  H04L1/004

摘要： A coded frame synchronization method for decoding coded information sent every frame includes the steps of: (a) receiving a coded frame having error detection or correction codes, each of which is provided every predetermined number of bits, error detection or correction codes being added to the coded frame in accordance with a predetermined pattern; (b) pulling the coded frame in synchronization by performing an error detection process every predetermined number of bits to be compared with results of the error detection process and thus detecting a phase of the error detection or correction codes; and (c) recognizing a leading end of the coded frame on the basis of the phase of the error detection or correction codes.

摘要翻译： 用于对每帧发送的编码信息进行解码的编码帧同步方法包括以下步骤：（a）接收具有错误检测或校正码的编码帧，每个校验码按每预定位数提供，将错误检测或校正码添加到 根据预定图案的编码帧; （b）通过与每个预定数量的比特执行错误检测处理，与错误检测处理结果进行比较，从而同步检测编码帧，从而检测出错误检测或校正码的相位; 和（c）基于错误检测或校正码的相位来识别编码帧的前端。

公开(公告)号：US5519394A

公开(公告)日：1996-05-21

申请号：US278615

申请日：1994-07-21

申请人： Naoshi Matsuo ,  Naoji Fujino ,  Mitsuru Tsuboi ,  Toshiaki Nobumoto ,  Nobuhide Eguchi

发明人： Naoshi Matsuo ,  Naoji Fujino ,  Mitsuru Tsuboi ,  Toshiaki Nobumoto ,  Nobuhide Eguchi

IPC分类号： G06F5/00 ,  G10L19/00 ,  G11B20/00 ,  H03M7/00 ,  H03M7/02 ,  H03M7/30 ,  H04B1/66 ,  H04B14/04 ,  H04L25/49 ,  H04L17/18 ,  H03M13/02 ,  H04L15/28

CPC分类号： H03M7/3082 ,  G11B20/00007

摘要： The coder generates code information A.sub.1 -A.sub.N, each representing one of Q quantization points of an input signal, where Q is an integer equal to or less than 2.sup.x and X is a positive number, synthesizes the code information A.sub.1 -A.sub.N into a code H through an operation:H=A.sub.1 Q.sup.N-1 +A.sub.2 Q.sup.N-2 + . . . +A.sub.N-1 Q+A.sub.N,and outputs the code H. The decoder inputs the code H, separates the code H into code information A.sub.1 -A.sub.N through operations with decimal fractions of quotients truncated:A.sub.1 =H/Q.sup.N-1A.sub.2 =(H-A.sub.1 Q.sup.N-1)/Q.sup.N-2A.sub.N-1 =(H-A.sub.1 Q.sup.N-1 -A.sub.2 Q.sup.N-2 - . . . -A.sub.N-2 Q.sup.2)/QA.sub.N =H-A.sub.1 Q.sup.N-1 -A.sub.2 Q.sup.N-2 - . . . -A.sub.N-2 Q.sup.2 -A.sub.N-1 Q,and reproduces an output signal based upon the thus-separated code information A.sub.1 -A.sub.N.

摘要翻译： 编码器生成代码信息A1-AN，每个代码信息A1-AN表示输入信号的Q个量化点之一，其中Q是等于或小于2×的整数，X是正数，将代码信息A1-AN合成为代码H 通过操作：H = A1QN-1 + A2QN-2 +。 。 。 + AN-1Q + AN，并输出代码H.解码器输入代码H，通过截断的商的小数部分的操作将代码H分成代码信息A1-AN：A1 = H / QN-1 A2 =（H -A 1 QN-1）/ QN-2 AN-1 =（H-AlQN-1-A2QN-2- ... -AN-2Q2）/ Q AN = H-AlQN-1-A2QN-2-。 。 。 -AN-2Q2-AN-1Q，并且基于这样分离的代码信息A1-AN再现输出信号。

公开(公告)号：US5436899A

公开(公告)日：1995-07-25

申请号：US134859

申请日：1993-10-12

申请人： Naoji Fujino ,  Mitsuru Tsuboi ,  Shoji Tominaga ,  Takao Matsuda ,  Naomi Nishiyama ,  Takahiro Aramaki ,  Ken-ichi Abiru ,  Toshiaki Nobumoto

发明人： Naoji Fujino ,  Mitsuru Tsuboi ,  Shoji Tominaga ,  Takao Matsuda ,  Naomi Nishiyama ,  Takahiro Aramaki ,  Ken-ichi Abiru ,  Toshiaki Nobumoto

IPC分类号： H04B1/66 ,  H04J3/16 ,  H04J3/17 ,  H04L12/70 ,  H04Q11/04

CPC分类号： H04Q11/0478 ,  H04B1/667 ,  H04J3/1688 ,  H04J3/17 ,  H04L2012/5671

摘要： The high performance multiplexed transmission system of this invention is configured by a sound coding unit for coding voice input information by separating it into a core information part for assuring the minimum acceptable sound quality and a supplementary information part discardable in stages per the transmission priorities. There is a silent section detecting unit for detecting silent sections of voice input information. In addition, there is a multiplexing unit for multiplexing only the information synchronizing with the correspondent's coder for the voice channels from which no sound is detected, or first the core information part and second the supplementary information part from the ones with the highest priorities in stages in fixed length frames, for discarding the supplementary information parts, which cannot be multiplexed because of a band deficiency.

摘要翻译： 本发明的高性能多路复用传输系统由声音编码单元构成，声音编码单元通过将语音输入信息分离成用于确保最小可接受声音质量的核心信息部分和可以按照传输优先级逐级丢弃的辅助信息部分进行编码。 存在用于检测语音输入信息的静音部分的无声部分检测单元。 此外，存在复用单元，用于仅复用与用于没有检测到声音的语音信道的通信对方编码器同步的信息，或者首先将核心信息部分和第二辅助信息部分与优先级最高的语音信道 在固定长度的帧中，用于丢弃由于频带不足而不能被复用的补充信息部分。

公开(公告)号：US5313462A

公开(公告)日：1994-05-17

申请号：US9652

申请日：1993-01-27

申请人： Naoji Fujino ,  Koji Okazaki ,  Mitsuru Tsuboi ,  Naoshi Matsuo ,  Naomi Suga ,  Toshiaki Nobumoto

发明人： Naoji Fujino ,  Koji Okazaki ,  Mitsuru Tsuboi ,  Naoshi Matsuo ,  Naomi Suga ,  Toshiaki Nobumoto

IPC分类号： H04J3/06 ,  H04J3/12 ,  H04L7/00 ,  H04N1/327 ,  H04Q11/04

CPC分类号： H04N1/32719 ,  H04J3/0605 ,  H04J3/12 ,  H04N1/32704

摘要： The invention provides a synchronism establishing method and apparatus including a plurality of modules having different independent synchronization patterns to be switched wherein the switching transition process having a time length corresponding to the number of protection stages necessary for pull in and protection of synchronism is reduced so small that the presence of such switching transition process can be ignored while assuring similar advantages to those of conventional synchronism establishing apparatus. A master side module delivers a notification of establishment of synchronism thereof to a slave side module. When the slave side module is in a condition wherein synchronism is established, it puts its synchronizing operation into a waiting mode. Even if it thereafter detects a number of abnormal synchronization patterns greater than the number of protection stages, it does not determine a pull out condition and maintains the pulled in phase. If the slave side module detects a false pull out condition from the master side module, the slave side module determines that synchronism is entered therewith and resumes its processing operation.

摘要翻译： 本发明提供了一种同步建立方法和装置，包括具有不同独立同步模式的多个模块，其中具有对应于拉入和保护同步所需保护级数的时间长度的切换转换过程减小到小 可以忽略这种切换转换过程的存在，同时确保与传统的同步建立装置类似的优点。 主侧模块向从属模块递送与其同步建立的通知。 当从侧模块处于建立同步状态时，将其同步操作置于等待模式。 即使其后检测到大于保护级数的异常同步模式的数量，也不确定拉出状态并保持拉入相位。 如果从机侧模块从主机侧模块检测到假拉出状态，则从侧模块确定与其一起输入同步并恢复其处理操作。

公开(公告)号：US06457113B1

公开(公告)日：2002-09-24

申请号：US09625703

申请日：2000-07-25

申请人： Noboru Kobayashi ,  Naoji Fujino ,  Hideaki Kurihara ,  Fumiaki Nishida

发明人： Noboru Kobayashi ,  Naoji Fujino ,  Hideaki Kurihara ,  Fumiaki Nishida

IPC分类号： G06F1200

CPC分类号： G06F9/5016 ,  G06F12/023

摘要： A multi-channel signal processing apparatus comprises a memory unit, a signal processing unit for single-channel implementing predetermined signal processing using a memory region of the memory unit according to a signal processing program for single-channel, an address generation unit generating a first memory address for single-channel processing, a pointer adding unit adding a pointer value indicating the head of an unused memory region of the memory unit to the first memory address generated by the address generation unit each time the signal processing in the signal processing unit is completed to generate a second memory address, and an address selecting unit selecting either the first memory address or the second memory address as a real address for the memory unit, thereby enabling multi-channel signal processing having a high processing efficiency without adding a large modification to the signal processing program for single-channel.

摘要翻译： 多信道信号处理装置包括存储单元，信号处理单元，用于根据用于单信道的信号处理程序，单通道实现使用存储器单元的存储区域的预定信号处理，地址生成单元生成第一 用于单通道处理的存储器地址，指针添加单元，每当信号处理单元中的信号处理为每个信号处理单元时，将指示存储器单元的未使用存储器区域的头部的指针值添加到由地址生成单元生成的第一存储器地址 完成以产生第二存储器地址，以及地址选择单元，其选择第一存储器地址或第二存储器地址作为存储器单元的实际地址，从而实现具有高处理效率的多信道信号处理，而不增加大的修改 到单通道的信号处理程序。

公开(公告)号：US06243462B1

公开(公告)日：2001-06-05

申请号：US09025463

申请日：1998-02-18

申请人： Kaoru Chujo ,  Naoji Fujino

发明人： Kaoru Chujo ,  Naoji Fujino

IPC分类号： H04M908

CPC分类号： H04B3/23

摘要： On the basis of tap coefficients which a tap coefficient updating circuit updates in succession, a maximum-tap position detecting unit, a fluctuation width detecting unit and a comparator detect a state where the transmission delay time of an echo path exceeds the echo control time of an echo canceller. In a case where the state has been detected, a changeover controlling unit stops an echo cancelling operation which includes a process for subtracting a pseudo echo signal from a send-in signal.

摘要翻译： 基于抽头系数更新电路连续更新的抽头系数，最大抽头位置检测单元，变动幅度检测单元和比较器检测回波路径的传输延迟时间超过回波控制时间的状态 回声消除器。 在已经检测到状态的情况下，切换控制单元停止包括从发送信号中减去伪回波信号的处理的回波消除操作。

公开(公告)号：US06967958B2

公开(公告)日：2005-11-22

申请号：US09784983

申请日：2001-02-16

申请人： Yoshiyuki Ono ,  Kaoru Chujo ,  Naoji Fujino

发明人： Yoshiyuki Ono ,  Kaoru Chujo ,  Naoji Fujino

IPC分类号： H04M3/00 ,  G09C1/00 ,  H04L9/14 ,  H04L12/24 ,  H04L12/26 ,  H04L12/70 ,  H04L29/06 ,  H04M7/00 ,  H04M11/00 ,  H04L12/28

CPC分类号： H04L65/1026 ,  H04L29/06027 ,  H04L41/18 ,  H04L43/0817 ,  H04L43/0829 ,  H04L43/0852 ,  H04L43/0888 ,  H04L65/1036 ,  H04L65/1083 ,  H04L65/80 ,  H04M3/2227 ,  H04M2207/203

摘要： A communication-status notification apparatus enabling a subscriber to observe various kinds of communication status in a network easily via the subscriber's own terminal in a communication system. The apparatus includes a request analysis section for discriminating whether or not voice data received by gateway equipment from a subscriber terminal contains a request on monitoring/controlling or notifying of a communication status in the network and for analyzing the content of the request when contains, a communication-status monitor/control section for monitoring/controlling the communication status responsive to the content of the request analyzed by the request analysis section based on a processing status of the voice data in the gateway equipment, and a communication-status notification section for notifying the subscriber terminal of the communication status monitored/controlled by the communication-status monitor/control section via the gateway equipment responsive to the content of the request analyzed by the request analysis section. The apparatus is useful when applied to VoIP gateway equipment or the like used for a VoIP communication system.

摘要翻译： 一种通信状态通知装置，其使用户能够在通信系统中经由用户自己的终端容易地观察网络中的各种通信状态。 该装置包括：请求分析部分，用于鉴别网关设备从用户终端接收到的语音数据是否包含关于监视/控制或通知网络中的通信状态的请求，以及当包含请求时分析请求的内容， 通信状态监视/控制部分，用于响应于由请求分析部分分析的请求的内容，基于网关设备中的语音数据的处理状态来监视/控制通信状态;以及通信状态通知部分，用于通知 响应于请求分析部分析的请求的内容，由通信状态监视/控制部分经由网关设备监视/控制的通信状态的用户终端。 该设备在应用于VoIP通信系统所使用的VoIP网关设备等时非常有用。

公开(公告)号：US07038800B2

公开(公告)日：2006-05-02

申请号：US09855289

申请日：2001-05-15

申请人： Yoshiyuki Ono ,  Naoji Fujino ,  Mitsuru Takahashi ,  Kimihide Ono ,  Norikatsu Tokairin

发明人： Yoshiyuki Ono ,  Naoji Fujino ,  Mitsuru Takahashi ,  Kimihide Ono ,  Norikatsu Tokairin

IPC分类号： G06K1/00 ,  H04N1/32 ,  H04N1/00 ,  H04L12/50

CPC分类号： H04N1/00209 ,  H04N1/32 ,  H04N2201/0093 ,  H04N2201/3261 ,  H04N2201/33357

摘要： A communication apparatus for processing a fax signal and an audio signal includes an audio compression unit for compressing the audio signal, a fax-termination/switching control unit for terminating the fax signal and for executing control to prevent the fax signal from being compressed by the audio compression unit, a detection unit for detecting a predetermined negotiation signal used in a negotiation procedure for a fax communication from an input signal before compression within a fixed period of time starting at the beginning of the negotiation signal and an exclusion processing unit for carrying out an exclusion process on the negotiation signal upon detection of the negotiation signal.