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公开(公告)号：US07016105B2
公开(公告)日：2006-03-21
申请号：US10636553
申请日：2003-08-08
申请人： Guy Balland , Alice Michaud , Emmanuel Rossi , Frank Bruyere , Jacques Pochet , Christophe Trouiller
发明人： Guy Balland , Alice Michaud , Emmanuel Rossi , Frank Bruyere , Jacques Pochet , Christophe Trouiller
IPC分类号： H04B10/12
CPC分类号： H04B10/296
摘要： A method of automatic gain control for use in an optical amplification device comprising a variable optical attenuator and an optical amplifier connected downstream of the optical attenuator includes the steps of measuring the power at the input of the amplification device, determining the number of channels at the input of the amplification device as a function of the measured power knowing the attenuation value of a span upstream of the device, and modifying the gain of the amplifier as a function of the number of channels determined in this way.
摘要翻译： 一种用于光放大装置的自动增益控制方法，包括可变光衰减器和连接在光衰减器下游的光放大器，包括以下步骤：测量放大装置的输入端的功率， 作为所测量的功率的函数的放大器件的输入，知道器件上游的跨度的衰减值，以及根据以这种方式确定的通道数目来修改放大器的增益。
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2.发明授权Method and apparatus for remote signalling by substituting a message for the data conveyed by a digital transmission link 失效用于通过将消息替换为由数字传输链路传送的数据的远程信令的方法和装置
公开(公告)号：US4677644A
公开(公告)日：1987-06-30
申请号：US802392
申请日：1985-11-27
IPC分类号： H04B1/74 , G08C19/28 , H04B10/00 , H04B10/02 , H04B10/08 , H04B17/40 , H04L25/02 , H04L25/49 , H04Q9/16 , H04L5/22
CPC分类号： H04L25/4906 , G08C19/28 , H04B10/077 , H04B17/40 , H04B2210/074
摘要： The method consists in momentarily replacing the data in a transmitted digital data stream by a remote signalling message which is built up from consecutive sequences, each of which is obtained by repeating a specific binary pattern chosen from a plurality of possible binary patterns which are generated from the second and fourth sub-harmonics of a clock signal at the bit rate of the digital stream, and from logical combinations thereof. FIG. 2 is a circuit diagram of a transmitter circuit for transmitting a remote signalling message. Said transmitter circuit is located in equipments on a very high data rate digital link, which equipments include a circuit (6') for detecting and handling alarms, and a circuit (3) for recovering the bit rate from the digital stream. Divide-by-two circuits (10, 14) and a logic gate (16) serve to generate three kinds of pattern from the recovered clock rate, namely: 0101, 0011, 1000. A sequencer (21) builds up sequences of patterns within a remote signalling message by means of a multiplexer (20) whose inputs are encoded with the message to be transmitted, a pattern generator selector circuit (11, 15, 16), and switching means (18) for inserting the remote signalling message instead of the digital stream.
摘要翻译： 该方法包括通过由连续序列构建的远程信令消息来瞬时地替换所发送的数字数据流中的数据，每个序列是通过重复从多个可能的二进制模式中选出的特定二进制模式获得的， 在数字流的比特率下的时钟信号的第二和第四子谐波以及它们的逻辑组合。 图。 图2是用于发送远程信令消息的发射机电路的电路图。 所述发射机电路位于非常高的数据速率数字链路上的设备中，该设备包括用于检测和处理警报的电路（6'），以及用于从数字流中恢复比特率的电路（3）。 二分之一电路（10,14）和逻辑门（16）用于从恢复的时钟速率（即：0101，0011,1000）产生三种模式。定序器（21）在其内部建立模式序列 通过多路复用器（20）的远程信令消息，其多路复用器（20）的输入用要发送的消息进行编码，模式发生器选择器电路（11,15,16）和用于插入远程信令消息而不是 数字流。
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公开(公告)号：US4727540A
公开(公告)日：1988-02-23
申请号：US802391
申请日：1985-11-27
IPC分类号： H03M7/00 , G08C19/28 , H04B1/74 , H04B10/00 , H04B17/40 , H04L25/02 , H04L25/49 , H04Q9/16 , H04J3/12
CPC分类号： H04L25/4906 , G08C19/28 , H04B10/00 , H04B17/40
摘要： Apparatus for implementing a remote signalling method which consists in momentarily replacing the transmitted digital data stream by a remote signalling message which is built up from not more than n identical and nonconsecutive sequences of N bits, with the first sequence of each message being present on each occasion that a message is sent, and with the remaining n-1 sequences of each message representing, by their presence or absence, the values 0 or 1 of n-1 digits in a binary number encoding remote signalling data. FIG. 2 shows a circuit for transmitting a remote signalling message from an equipment along a very high data rate digital link, which equipment is provided with a circuit (6') for detecting and handling alarms, and a circuit (3) for recovering the bit rate from the digital stream. An OR gate (12) associated with dividers (10, 11) implemented in a high speed ECL technology generates a repetitive 1000 pattern on which a sequence is based, and switching device (13) also implemented in high speed ECL technology serves to insert sequences of said pattern into the digital stream to constitute a remote signalling message. The switching device is controlled by message-building logic circuits made from slower I.sup.2 L or Schottky technology.
摘要翻译： 用于实现远程信令方法的装置，其包括通过远程信令消息立即替换所发送的数字数据流，所述远程信令消息由不相同且非连续的N位序列构成，每个消息的第一序列存在于每个 发送消息的情况，并且每个消息的剩余n-1个序列通过其存在或不存在表示编码远程信令数据的二进制数中的n-1个数字的值0或1。 图。 图2示出了用于沿着非常高的数据速率数字链路从设备发送远程信令消息的电路，该设备设置有用于检测和处理警报的电路（6'），以及用于恢复比特率的电路（3） 从数字流。 与以高速ECL技术实现的分频器（10,11）相关联的或门（12）产生基于序列的重复1000模式，并且还以高速ECL技术实现的切换装置（13）用于插入序列 的所述模式转换成数字流以构成远程信令消息。 开关器件由慢速I2L或肖特基技术制成的消息构建逻辑电路控制。
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4.发明授权
公开(公告)号：US4689790A
公开(公告)日：1987-08-25
申请号：US802288
申请日：1985-11-27
IPC分类号： H04B1/74 , H04B17/40 , H04J3/06 , H04J3/12 , H04L7/00 , H04L7/02 , H04L25/02 , H04Q9/16 , H04J3/22
CPC分类号： H04J3/0602 , H04B17/406 , H04J3/12 , H04L7/0066
摘要： The method consists in momentarily replacing the data transmitted by a digital data link with a digital message comprising two non-consecutive sequences, with the first sequence being a prefix sequence and the other sequence being a suffix sequence. The period of time separating the prefix and suffix sequences is variable and encodes remote signalling data. FIG. 2 shows a message transmitter circuit fitted in digital link equipment for operation at a very high data rate, and provided with a circuit (6') for detecting and handing alarms and with a circuit (3) for recovering the bit rate from the digital stream. A pattern generator (10) serves to generate a 1000 pattern and its 0111 complement from the recovered check rate. An oscillator (20) has a period which defines the time interval separating the prefix sequence and the suffix sequence. This oscillator controls a sequencer (25) which in turn controls a prefix sequence building circuit (30) and a suffix sequence building circuit (40) both of which act via logic gates on a circuit for selecting pattern types and on switching means (19) for inserting the selected sequence into the digital stream instead data.
摘要翻译： 该方法包括用包含两个非连续序列的数字消息瞬时地替换由数字数据链路发送的数据，其中第一序列是前缀序列，而另一个序列是后缀序列。 分离前缀和后缀序列的时间段是可变的，并且编码远程信令数据。 图。 图2示出了安装在数字链路设备中用于以非常高的数据速率操作的消息发射机电路，并且设置有用于检测和处理警报的电路（6'）以及用于从数字流中恢复比特率的电路（3） 。 模式发生器（10）用于从恢复的检查率产生1000模式及其0111补码。 振荡器（20）具有定义分隔前缀序列和后缀序列的时间间隔的周期。 该振荡器控制定序器（25），该定序器（25）进而控制前缀序列构建电路（30）和后缀序列构建电路（40），两者都通过用于选择模式类型的电路上的逻辑门起作用，并且在开关装置（19）上， 用于将所选序列插入数字流而不是数据。
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5.发明授权
公开(公告)号：US4768202A
公开(公告)日：1988-08-30
申请号：US849331
申请日：1986-04-08
CPC分类号： H04B17/406
摘要： A method of transmitting signalling along a bidirectional digital transmission link consists in transmitting from an intermediate equipment of the link a signalling message in two parts. One is a characterizing part the form of which depends on the signalling type and which is substituted for data of one of the digital bit streams carried by the link in the direction from one of the terminals referred to as the processing terminal. The other is a localizing part whose form is independent of the signalling type and which is substituted for data of the digital bit stream carried by the link in the direction towards the other, so-called relay terminal. The relay terminal responds by sending an acknowledgement message to the processing terminal, the time-delay of this relative to the characterizing part being used to identify the sending equipment. A signalling message transmission circuit controls switching circuits inserted into the paths of the digital bit streams carried by the link. The equipment for transmitting signalling along a bidirectional digital transmission link comprises a clock circuit defining in terms of the period of its output signal the duration of a signalling message characterizing part. Its half-period defines the duration of a localizing part. There is also a circuit for selecting the first complete period of the clock circuit output signal after a signalling transmission request, as well as circuits for composing the two parts of the message.
摘要翻译： 沿着双向数字传输链路发送信令的方法在于从链路的中间设备发送信令消息两部分。 一个是表征部分，其形式取决于信令类型，并且代替链路在从被称为处理终端的终端之一的方向上携带的一个数字比特流的数据。 另一个是定位部分，其形式独立于信令类型，并且代替链路在朝向另一个的方向上携带的数字比特流的数据，即所谓的中继终端。 中继终端通过向处理终端发送确认消息来进行响应，其相对于表征部分的时间延迟用于识别发送设备。 信令消息传输电路控制插入到由链路承载的数字比特流的路径中的切换电路。 用于沿着双向数字传输链路发送信令的设备包括时钟电路，其根据其输出信号的周期定义信令消息特征部分的持续时间。 其半周期定义了本地化部件的持续时间。 还有一个电路用于选择信令传输请求后的时钟电路输出信号的第一个完整周期，以及用于组成消息的两个部分的电路。
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