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：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：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：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：US5140582A

公开(公告)日：1992-08-18

申请号：US516687

申请日：1991-04-30

申请人： Mitsuru Tsuboi ,  Susumu Tominaga ,  Akira Takeyama ,  Satoshi Nojima

发明人： Mitsuru Tsuboi ,  Susumu Tominaga ,  Akira Takeyama ,  Satoshi Nojima

IPC分类号： H04L12/933 ,  H04L12/935 ,  H04L12/937

CPC分类号： H04L49/102 ,  H04L49/101 ,  H04L49/254 ,  H04L49/3018

摘要： A packet switching system having a matrix switch including input packet transfer buses and output packet transfer buses. Transfer buffers or gates are provided at cross points of the input and output packet transfer buses. An input packet is supplied to the matrix switch through a transfer control circuit, and an output packet from the matrix switch is output through the transfer control circuit. The input packet is permitted to be applied to the matrix switch so that each of the output packet transfer buses has only one packet during one packet transfer cycle.

摘要翻译： 具有包括输入分组传输总线和输出分组传输总线的矩阵切换的分组交换系统。 在输入和输出分组传输总线的交叉点提供传送缓冲器或门。 通过传送控制电路将输入分组提供给矩阵切换器，通过传送控制电路输出来自矩阵切换器的输出分组。 允许将输入分组应用于矩阵切换器，使得每个输出分组传送总线在一个分组传送周期期间仅具有一个分组。