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1.发明公开
公开(公告)号：EP0820052A2
公开(公告)日：1998-01-21
申请号：EP97105230.3
申请日：1997-03-27
IPC分类号： G10L9/00
CPC分类号： G10L19/173
摘要： In a voice coding-and-transmission system using a differential coding, a degradation of voice quality caused by a silent period transmission network and an ATM network is prevented without improving a silent-period elimination transmission network and existing transmission networks such as a STM network. In a relay node (104), an encoder (114) codes a voice signal from a decoder (108) again for a transient period immediately after a voice is started, and a transmission node (100) and a reception node (102) are tandem-connected. The encoder (114) and a decoder (122) at a reception node (102) are given respectively same reference values of a differential processing by memories (118, 128) when the voice is started, thereby preventing an abnormal sound generation due to a mismatch of inner statuses thereof when the voice is started. During the transient period, the internal statuses of an encoder (106) at a reception node (100) and the decoder (122) are closed each other. After the transient period is elapsed, switching a switch in a silent-period eliminator (112) to a digital-one-link, thereby preventing the degradation of the voice quality caused by quantization errors.
摘要翻译： 在使用差分编码的语音编码 - 传输系统中，防止由无声期传输网络和ATM网络引起的语音质量的恶化，而不改进静默期消除传输网络和诸如STM网络的现有传输网络 。 在中继节点（104）中，编码器（114）在语音开始之后立即对来自解码器（108）的语音信号再次进行瞬时编码，并且传输节点（100）和接收节点（102）是 串联连接。 当语音开始时，在接收节点（102）处的编码器（114）和解码器（122）分别给出由存储器（118,128）进行的差分处理的相同参考值，从而防止由于 当声音开始时，其内部状态不匹配。 在过渡期间，在接收节点（100）和解码器（122）处的编码器（106）的内部状态彼此关闭。 在经过了瞬时时段之后，将无声期消除器（112）中的开关切换到数字一链路，从而防止由量化误差引起的语音质量的劣化。
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公开(公告)号：EP0820052A3
公开(公告)日：2000-04-19
申请号：EP97105230.3
申请日：1997-03-27
CPC分类号： G10L19/173
摘要： In a voice coding-and-transmission system using a differential coding, a degradation of voice quality caused by a silent period transmission network and an ATM network is prevented without improving a silent-period elimination transmission network and existing transmission networks such as a STM network. In a relay node (104), an encoder (114) codes a voice signal from a decoder (108) again for a transient period immediately after a voice is started, and a transmission node (100) and a reception node (102) are tandem-connected. The encoder (114) and a decoder (122) at a reception node (102) are given respectively same reference values of a differential processing by memories (118, 128) when the voice is started, thereby preventing an abnormal sound generation due to a mismatch of inner statuses thereof when the voice is started. During the transient period, the internal statuses of an encoder (106) at a reception node (100) and the decoder (122) are closed each other. After the transient period is elapsed, switching a switch in a silent-period eliminator (112) to a digital-one-link, thereby preventing the degradation of the voice quality caused by quantization errors.
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4.发明公开Variable bit rate digital circuit multiplication equipment with tandem passthrough function 审中-公开Digitalkreis-Multiplikationsausrüstungvariabler Bitrate mit einer Funktion zur Durchschaltung in einer Tandemverbindung
公开(公告)号：EP1146679A2
公开(公告)日：2001-10-17
申请号：EP01108506.5
申请日：2001-04-04
发明人： Fushimi, Wataru , Suzuki, Shigeaki
CPC分类号： G10L19/16 , H04J3/1688 , H04L2012/5671
摘要： Digital circuit multiplication equipment (DCME) refers to coding bit rate information included in a pseudo-speech signal. In accordance with the coding bit rate information, the DCME selects either a coded speech signal extracted by a transmission bit rate restorer (19) or a coded speech signal including bit rate identification information added by a coding bit rate information adding section (30), and supplies the selected coded speech signal to a bearer line. The DCME can solve a problem of a conventional DCME in that a mismatch can take place between the actual transmission bit rate of the coded speech signal and the transmission bit rate assigned to the bearer line when providing the variable bit rate DCME with a tandem passthrough function, and therefore the correct coding bit rate information cannot be transferred to a speech decoder, bringing about serious degradation in the speech quality.
摘要翻译： 数字电路倍增设备（DCME）是指包含在伪语音信号中的编码比特率信息。 根据编码比特率信息，DCME选择由传输比特率恢复器（19）提取的编码语音信号或由编码比特率信息添加部分（30）添加的包括比特率识别信息的编码语音信号， 并将所选择的编码语音信号提供给承载线。 DCME可以解决常规DCME的问题，因为当将可变比特率DCME提供串联直通函数时，在编码语音信号的实际传输比特率和分配给载体线路的传输比特率之间可能发生不匹配 因此，正确的编码比特率信息不能传送到语音解码器，导致语音质量的严重降级。
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5.发明公开
公开(公告)号：EP1467551A3
公开(公告)日：2004-11-17
申请号：EP04014508.8
申请日：1998-02-25
发明人： Horie, Nobuyoshi , Suzuki, Shigeaki
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： 当接收到指示帧数据在发送期间被丢弃的帧检测信号时，将与存储在恢复数据存储部30,41中的最旧的一个传真信号相对应的传真信号输出到调制解调器22,33。
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公开(公告)号：EP0948190A3
公开(公告)日：2001-01-31
申请号：EP99106608.5
申请日：1999-03-31
发明人： Suzuki, Shigeaki , Horie, Nobuyoshi
IPC分类号： H04N1/327
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.
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公开(公告)号：EP0948190A2
公开(公告)日：1999-10-06
申请号：EP99106608.5
申请日：1999-03-31
发明人： Suzuki, Shigeaki , Horie, Nobuyoshi
IPC分类号： H04N1/327
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： 即使发生了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实现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。 在开始发送EPT信号的同时，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开始第三预定时间操作的定时器。 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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8.发明公开Variable bit rate digital circuit multiplication equipment with tandem passthrough function 审中-公开数字线路复用装置的可变比特率与在串联连接进行切换的功能
公开(公告)号：EP1146679A3
公开(公告)日：2005-09-21
申请号：EP01108506.5
申请日：2001-04-04
发明人： Fushimi, Wataru , Suzuki, Shigeaki
CPC分类号： G10L19/16 , H04J3/1688 , H04L2012/5671
摘要： Digital circuit multiplication equipment (DCME) refers to coding bit rate information included in a pseudo-speech signal. In accordance with the coding bit rate information, the DCME selects either a coded speech signal extracted by a transmission bit rate restorer (19) or a coded speech signal including bit rate identification information added by a coding bit rate information adding section (30), and supplies the selected coded speech signal to a bearer line. The DCME can solve a problem of a conventional DCME in that a mismatch can take place between the actual transmission bit rate of the coded speech signal and the transmission bit rate assigned to the bearer line when providing the variable bit rate DCME with a tandem passthrough function, and therefore the correct coding bit rate information cannot be transferred to a speech decoder, bringing about serious degradation in the speech quality.
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公开(公告)号：EP1467551A2
公开(公告)日：2004-10-13
申请号：EP04014508.8
申请日：1998-02-25
发明人： Horie, Nobuyoshi , Suzuki, Shigeaki
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.
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