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公开(公告)号：US5960077A
公开(公告)日：1999-09-28
申请号：US823760
申请日：1997-03-25
申请人： Tomoko Ishii , Shigeaki Suzuki , Nobuyoshi Horie
发明人： Tomoko Ishii , Shigeaki Suzuki , Nobuyoshi Horie
CPC分类号： H04B3/23
摘要： A counter increments a count value every given time period. An adaptive operation control unit selects channels in which adaptive operations are done from all the channels in obedience to the count value to output produced selection signals to AND circuits. Double-talk detection circuits judge the presence/absence of a double-talk state and output detection signals to the AND circuits. The AND circuits operate logical AND of the selection signals and the detection signals and output the logical AND results as control signals to filter coefficient updating circuits. The filter coefficient updating circuits update or do not update filter coefficients stored in FIR filter units according to the control signals. The FIR filter units produce echo replicas by calculating convolutions of the filter coefficients and the receive signals. Subtractors subtract the echo replicas from transmission signals to output residual signals.
摘要翻译： 计数器每给定时间段递增一个计数值。 自适应操作控制单元根据计数值从所有通道中选择进行自适应操作的信道，以将产生的选择信号输出到“与”电路。 双方通话检测电路判断是否存在双方通话状态，并向AND电路输出检测信号。 AND电路对选择信号和检测信号进行AND逻辑运算，并输出逻辑AND结果作为过滤系数更新电路的控制信号。 滤波器系数更新电路根据控制信号更新或不更新存储在FIR滤波器单元中的滤波器系数。 FIR滤波器单元通过计算滤波器系数和接收信号的卷积来产生回波复制。 减法器从传输信号中减去回波副本以输出残留信号。
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公开(公告)号：US06373597B1
公开(公告)日：2002-04-16
申请号：US09283570
申请日：1999-04-01
申请人： Shigeaki Suzuki , Nobuyoshi Horie
发明人： Shigeaki Suzuki , Nobuyoshi Horie
IPC分类号： H04N132
CPC分类号： H04N1/32795 , H04N1/32702
摘要： A facsimile signal transmission system which satisfies the stipulation of the signal sending time and the stipulation of the signal time interval for enabling successful facsimile communication even if a detection delay or a sending delay occurs. In a facsimile signal transmission system for transmitting a digital command signal (DCS signal), an echo protect tone signal (EPT signal), a training signal, and a training check signal, if an IDLE message signal output from a transmission part at the end of the DCS signal is received in a reception party, a first timer operated for a first predetermined time is started. When the first predetermined time has elapsed, sending of the EPT signal to the reception facsimile terminal is started. A second timer operated for a second predetermined time is started at the same time as sending of the EPT signal is started. When the second predetermined time has elapsed, sending of the EPT signal is terminated. A third timer operated for a third predetermined time is started at the same time as sending of the EPT signal is terminated. When the third predetermined time has elapsed, sending of the training signal to the reception facsimile terminal is started.
摘要翻译： 即使发生检测延迟或发送延迟，也能够满足信号发送时间的规定的传真信号传输系统和用于使成功的传真通信的信号时间间隔的规定。 在用于发送数字命令信号（DCS信号），回波保护音信号（EPT信号），训练信号和训练检查信号的传真信号传输系统中，如果从末端的传输部分输出的空闲消息信号 在接收方中接收到DCS信号，开始第一预定时间操作的第一定时器。 当第一预定时间过去时，开始向接收传真终端发送EPT信号。 在EPT信号的发送开始的同时开始第二预定时间操作的定时器。 当第二预定时间过去时，终止EPT信号的发送。 在EPT信号的发送终止的同时，第三定时器操作第三预定时间。 当第三预定时间过去时，开始向接收传真终端发送训练信号。
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公开(公告)号：US06288796B1
公开(公告)日：2001-09-11
申请号：US09155797
申请日：1998-10-06
申请人： Nobuyoshi Horie , Shigeaki Suzuki
发明人： Nobuyoshi Horie , Shigeaki Suzuki
IPC分类号： H04N132
CPC分类号： H04N1/32641 , H04N1/32614 , H04N1/32678
摘要： When a frame detection signal is received which indicates that frame data was discarded during transmission, a facsimile signal corresponding to the oldest one of facsimile signals stored in a restored data storage part 30, 41 is output to a modem 22, 33.
摘要翻译： 当接收到指示在传输期间丢弃帧数据的帧检测信号时，与存储在恢复数据存储部分30,41中的传真信号中最旧的传真信号相对应的传真信号被输出到调制解调器22,33。
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公开(公告)号：US06498833B2
公开(公告)日：2002-12-24
申请号：US09922858
申请日：2001-08-07
IPC分类号： H04M124
CPC分类号： H04L1/24 , H04B14/048 , H04L43/50 , H04M3/00 , H04M3/244 , H04Q11/04 , H04Q2213/13034 , H04Q2213/1316 , H04Q2213/13166 , H04Q2213/13213 , H04Q2213/13216 , H04Q2213/1331 , H04Q2213/1332 , H04Q2213/13322
摘要： When there is an error in setting of a companding law of an encoder or a decoder, there is a problem of an error in judgment although it should be originally judged that the continuity of the testing channel does not exist. Therefore, a channel check test system includes a transmitting side DCME for inserting a nonlinear quantized input test pattern into a channel to be tested, and a receiving side DCME. The receiving side DCME includes an adder for adding an offset value to an output value of a linear converting section, a sign extracting section for extracting a sign from an output signal of the adder, a delay unit for delaying the extracted sign, an exclusive OR arithmetic unit for performing an exclusive OR operation of the extracted sign and an output signal of the delay unit, a counter for counting the number of times of conformity in which an output value of the exclusive OR arithmetic unit is in conformity with a predetermined value, and a comparator for comparing a counted value of the counter and a threshold value and outputting judged results. Existence or nonexistence of the continuity of the channel to be tested can be checked including an error in setting of the PCM companding law in one of the transmitting side DCME and the receiving side DCME.
摘要翻译： 当编码器或解码器的压扩定律设定有错误时，尽管最初应该判断出测试通道的连续性不存在，但存在判断错误的问题。因此，通道检查测试 系统包括用于将非线性量化输入测试图案插入待测试通道的发送侧DCME和接收侧DCME。 接收侧DCME包括用于将偏移值与线性转换部分的输出值相加的加法器，用于从加法器的输出信号中提取符号的符号提取部分，用于延迟提取的符号的延迟单元，异或 用于执行所提取的符号的异或运算的运算单元和延迟单元的输出信号，用于对异或运算单元的输出值与预定值一致的计数符合次数的计数器， 以及比较器，用于比较计数器的计数值和阈值，并输出判定结果。可以检查出要测试的通道的连续性的存在或不存在，其中包括在传输中的一个中的PCM压扩法的设置中的错误 侧DCME和接收端DCME。
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公开(公告)号：US06324260B1
公开(公告)日：2001-11-27
申请号：US09634765
申请日：2000-08-07
IPC分类号： H04M124
CPC分类号： H04L1/24 , H04B14/048 , H04L43/50 , H04M3/00 , H04M3/244 , H04Q11/04 , H04Q2213/13034 , H04Q2213/1316 , H04Q2213/13166 , H04Q2213/13213 , H04Q2213/13216 , H04Q2213/1331 , H04Q2213/1332 , H04Q2213/13322
摘要： When there is an error in setting of a companding law of an encoder or a decoder, there is a problem of an error in judgment although it should be originally judged that the continuity of the testing channel does not exist. Therefore, a channel check test system includes a transmitting side DCME for inserting a nonlinear quantized input test pattern into a channel to be tested, and a receiving side DCME. The receiving side DCME includes an adder for adding an offset value to an output value of a linear converting section, a sign extracting section for extracting a sign from an output signal of the adder, a delay unit for delaying the extracted sign, an exclusive OR arithmetic unit for performing an exclusive OR operation of the extracted sign and an output signal of the delay unit, a counter for counting the number of times of conformity in which an output value of the exclusive OR arithmetic unit is in conformity with a predetermined value, and a comparator for comparing a counted value of the counter and a threshold value and outputting judged results. Existence or nonexistence of the continuity of the channel to be tested can be checked including an error in setting of the PCM companding law in one of the transmitting side DCME and the receiving side DCME.
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公开(公告)号：US07181000B2
公开(公告)日：2007-02-20
申请号：US10515637
申请日：2003-04-04
申请人： Nobuyoshi Horie
发明人： Nobuyoshi Horie
IPC分类号： H04M9/08
CPC分类号： H04M3/002
摘要： A voice transmission device has a tandem pass through function in an STM, ATM, IP network, and a noise canceller (21) is provided at a latter stage of an echo canceller (12) in a coding part, and in a case where a multistage connection state does not occur, noise removal is performed to carry out efficient coding, and in a case where a relay is performed in the multistage connection state, switching is performed to stop the operation of the noise canceller (21), and voice deterioration by redundant decoding and coding is prevented, and therefore, even in a cellular phone having no noise cancel function, or the like, and at both a normal time and a time of a tandem pass through state, high quality voice transmission can be performed, and further, since an unvoiced portion in voice data is increased by removing a noise component, a portion subjected to coding becomes small, and transmission amount of the line is reduced.
摘要翻译： 语音传输装置在STM，ATM，IP网络中具有串联通过功能，并且在编码部分的回波消除器（12）的后级提供噪声消除器（21），并且在 不进行多级连接状态，进行噪声去除以进行有效的编码，在多级连接状态下进行继电器的情况下，进行切换以停止噪声消除器（21）的动作，声音恶化 通过冗余解码和编码被防止，因此即使在没有噪声消除功能的蜂窝电话等中，并且在串联通过状态的正常时间和时间都可以执行高质量的语音传输， 此外，由于通过去除噪声分量来增加语音数据中的无声部分，所以经过编码的部分变小，并且线路的发送量减少。
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公开(公告)号：US20050175191A1
公开(公告)日：2005-08-11
申请号：US10515637
申请日：2003-04-04
申请人： Nobuyoshi Horie
发明人： Nobuyoshi Horie
CPC分类号： H04M3/002
摘要： A voice transmission device has a tandem pass through function in an STM, ATM, IP network, and a noise canceller (21) is provided at a latter stage of an echo canceller (12) in a coding part, and in a case where a multistage connection state does not occur, noise removal is performed to carry out efficient coding, and in a case where a relay is performed in the multistage connection state, switching is performed to stop the operation of the noise canceller (21), and voice deterioration by redundant decoding and coding is prevented, and therefore, even in a cellular phone having no noise cancel function, or the like, and at both a normal time and a time of a tandem pass through state, high quality voice transmission can be performed, and further, since an unvoiced portion in voice data is increased by removing a noise component, a portion subjected to coding becomes small, and transmission amount of the line is reduced.
摘要翻译： 语音传输装置在STM，ATM，IP网络中具有串联通过功能，并且在编码部分的回波消除器（12）的后级提供噪声消除器（21），并且在 不进行多级连接状态，进行噪声去除以进行有效的编码，在多级连接状态下进行继电器的情况下，进行切换以停止噪声消除器（21）的动作，声音恶化 通过冗余解码和编码被防止，因此即使在没有噪声消除功能的蜂窝电话等中，并且在串联通过状态的正常时间和时间都可以执行高质量的语音传输， 此外，由于通过去除噪声分量来增加语音数据中的无声部分，所以经过编码的部分变小，并且线路的发送量减少。
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8.发明授权Signal discrimination apparatus, a method for discriminating a signal, and a signal transmitting apparatus for voiceband signals 失效信号鉴别装置，用于识别信号的方法和用于语音频带信号的信号发送装置
公开(公告)号：US06147973A
公开(公告)日：2000-11-14
申请号：US820983
申请日：1997-03-19
申请人： Yukimasa Sugino , Yushi Naito , Hideaki Ebisawa , Nobuyoshi Horie
发明人： Yukimasa Sugino , Yushi Naito , Hideaki Ebisawa , Nobuyoshi Horie
CPC分类号： H04Q1/46 , G10L25/78 , G10L25/18 , H04M11/066
摘要： A reset signal generating part outputs reset signals RV and RD to a signal discriminating part, based on an output from a 2100 Hz detecting part which detects whether or not a tone of 2100 Hz exists in an input signal. When the 2100 Hz tone is detected, the signal discriminating part firstly resets a discrimination state at "speech" and secondly sets the discrimination state at "data" based on the reset signal. Therefore, a signal discrimination apparatus, wherein it is possible to reset the discrimination state at "speech" at the beginning of a facsimile call even when no call control information is received, can be provided.
摘要翻译： 复位信号生成部基于检测输入信号中是否存在2100Hz的音调的2100Hz检测部的输出，将复位信号RV，RD输出到信号鉴别部。 当检测到2100Hz音时，信号识别部分首先在“语音”处复位识别状态，其次基于复位信号将判别状态设置为“数据”。 因此，即使在没有接收到呼叫控制信息的情况下，也可以在传真呼叫开始时将“语音”的识别状态复位的信号鉴别装置。
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公开(公告)号：US20050201369A1
公开(公告)日：2005-09-15
申请号：US10510713
申请日：2003-03-31
申请人： Nobuyoshi Horie
发明人： Nobuyoshi Horie
CPC分类号： H04M1/2535
摘要： A voice transmission apparatus 100 includes a subscriber-side I/F processing unit 1, a voice signal processing unit 2, a packet processing unit 3, an Ethernet I/F processing unit 4, a device-operation-monitoring-control processing unit 5, an amount of discarded voice packets/packet jitter measuring unit 6, a calling restriction determining unit 7, and an ITU-T Q.50 DLC processing unit 8. An operation monitor control desk 9 and an exchange 10 are connected to the voice transmission apparatus 100. The voice transmission apparatus 100 can impose a calling restriction on the exchange 10 based on the amount of discarded packets and the amount of packet jitter measured by the amount of discarded voice packets/packet jitter measuring unit 6.
摘要翻译： 语音发送装置100包括用户侧I / F处理单元1，语音信号处理单元2，分组处理单元3，以太网I / F处理单元4，设备操作监视控制处理单元5 ，丢弃语音分组/分组抖动测量单元6，呼叫限制确定单元7和ITU-T Q.50 DLC处理单元8的数量。 操作监视器控制台9和交换机10连接到语音发送装置100。 语音发送装置100可以基于丢弃的分组的数量和由丢弃语音分组/分组抖动测量单元6的量测量的分组抖动量来对交换机10施加呼叫限制。
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