公开(公告)号：EP0548409A1

公开(公告)日：1993-06-30

申请号：EP91203369.3

申请日：1991-12-23

申请人： ALCATEL BELL Naamloze Vennootschap ,  ALCATEL N.V.

发明人： Van de Voorde, Ingrid Zulma Benoit ,  Mestdagh, Denis Julien Gilles ,  Van der Plas, Gert ,  Sierens, Christiaan Hendrik Jozef ,  Verbiest, Willem Jules Antoine

IPC分类号： H04B10/24

CPC分类号： H04B10/2503

摘要： The system includes two transmitters (T1, T2) and two receivers (R1, R2). One transmitter (T1) includes a wavelength tunable laser, sending an FSK optical signal (OS1) which has a constant intensity. In a first receiver (R1) this FSK optical signal (OS1) is transformed into an IM signal (OS1') by an optical pass band filter. This IM signal (OS1') is then detected by a first direct detection receiver (DM). In a second direct detection receiver (R2) the FSK optical signal (OS2) is not detected, since it has constant intensity. A second transmitter (T2) includes a Fabry Perot laser or a LED with a broad linewidth, sending an IM optical signal (OS2). This IM optical signal (OS2) is detected by the second direct detection receiver (R2). It is not detected by the first direct detection receiver (DM), because it is strongly attenuated when passing through the narrow bandpass optical filter (TM) before being applied to the first direct detection receiver. This system is especially advantageous in bidirectional optical transmission systems, due to its inherent insensitivity for reflections.

摘要翻译： 该系统包括两个发射器（T1，T2）和两个接收器（R1，R2）。 一个发射器（T1）包括波长可调激光器，发送具有恒定强度的FSK光信号（OS1）。 在第一个接收器（R1）中，这个FSK光信号（OS1）被一个光学通带滤波器转换成一个IM信号（OS1'）。 该IM信号（OS1'）然后由第一直接检测接收器（DM）检测。 在第二个直接检测接收器（R2）中，由于FSK光信号（OS2）具有恒定的强度，所以不检测FSK光信号（OS2）。 第二发射器（T2）包括法布里珀罗激光器或具有宽线宽的LED，发送IM光信号（OS2）。 该IM光信号（OS2）由第二直接检测接收器（R2）检测。 它不被第一直接检测接收机（DM）检测到，因为它在被施加到第一直接检测接收机之前在通过窄带通滤光器（TM）时被强烈衰减。 由于其对反射的固有不敏感性，该系统在双向光传输系统中特别有利。

公开(公告)号：EP0520127A1

公开(公告)日：1992-12-30

申请号：EP91870102.0

申请日：1991-06-28

申请人： ALCATEL BELL Naamloze Vennootschap ,  ALCATEL N.V.

发明人： Van der Plas, Gert ,  Reusens, Peter Paul Frans ,  Verbiest, Willem Jules Antoine ,  Mestdagh, Denis Julien Gilles ,  Sierens, Christiaan Hendrik Jozef

IPC分类号： H04L7/033

CPC分类号： H04L7/0338 ,  H04L7/044

摘要： The synchronizing arrangement synchronizes a digital data signal (Din) applied to its data input terminal (Din) with a local clock (CKin) applied to its clock input (CKin). It includes a tuned tapped delay line (TDL) where the local clock (CKin) is delayed, a sampling circuit (DR2,.,DR4) where the digital data signal is sampled using a number of delayed clock signals, a first processing circuit (P) where the middle of a 0 1 0 pattern included in the signal is determined, a second processing circuit P2 where the variation in time of that middle is determined and an output circuit where based on the mentioned middle and variation, one of the delayed clock signals is selected to read the digital data signal.
The tuned tapped delay line includes a tapped delay line and a feedback circuit at two inputs of which the input of the tuned tapped delay line and its 90 degrees tap are applied. The output of the feedback circuit is connected to a control input of the tapped delay line.

摘要翻译： 同步装置使应用于其数据输入端（Din）的数字数据信号（Din）与应用于其时钟输入（CKin）的本地时钟（CKin）同步。 它包括本地时钟（CKin）被延迟的调谐抽头延迟线（TDL），使用多个延迟的时钟信号对数字数据信号进行采样的采样电路（DR2，...，DR4），第一处理电路 P），其中确定包括在信号中的0 1 0模式的中间，确定中间时间变化的第二处理电路P2和基于所述中间和变化的输出电路，延迟 选择时钟信号来读取数字数据信号。 调谐抽头延迟线包括抽头延迟线和在两个输入处的反馈电路，其中施加调谐抽头延迟线的输入及其90度抽头。 反馈电路的输出连接到抽头延迟线的控制输入。

公开(公告)号：EP0544975A1

公开(公告)日：1993-06-09

申请号：EP91870197.0

申请日：1991-12-05

申请人： ALCATEL BELL Naamloze Vennootschap ,  ALCATEL N.V.

发明人： van der Plas, Gert ,  Verbiest, Willem Jules Antoine ,  Mestdagh, Denis Julien Gilles ,  Sierens, Christiaan Hendrik Jozef

IPC分类号： H04Q11/04

CPC分类号： H04J3/1694 ,  H04L2012/561 ,  H04L2012/5632 ,  H04Q11/0478

摘要： The time slot management system is included in a digital time division multiple access system comprising a main station MS and a plurlity of substations U1/16 connected to each other by means of a tree network. The substations U1/16 send to the main station MS upstream information packet in time slots assigned to each of the former stations by the latter one. Part of the time slots is reserved for management information and used by the substation to inform the main station about the bandwidth needed for the further transfer of the upstream information. According to this information the time slot management system allocates the time slots and informs the substations thereof. In this way a flexible and dynamical time slot allocation is provided.

摘要翻译： 时隙管理系统包括在数字时分多址系统中，该数字时分多址系统包括通过树网络彼此连接的主站MS和多个变电站U1 / 16。 变电站U1 / 16发送到主站MS上游信息包，后者由分配给前者的每个站的时隙发送。 部分时隙被保留用于管理信息，并由变电站使用，通知主站关于进一步传送上游信息所需的带宽。 根据该信息，时隙管理系统分配时隙并通知其变电站。 以这种方式提供灵活和动态的时隙分配。

公开(公告)号：EP0521197A1

公开(公告)日：1993-01-07

申请号：EP91201355.4

申请日：1991-06-04

申请人： ALCATEL BELL Naamloze Vennootschap ,  ALCATEL N.V.

发明人： van der Plas, Gert ,  Sierens, Christiaan Hendrik Jozef ,  Mestdagh, Denis Julien Gilles

IPC分类号： H04B10/20

CPC分类号： H04B10/272 ,  H04J3/0682 ,  H04L2012/5615 ,  H04L2012/5674

摘要： To determine the equalisation delay of a substation (S3), the main station (C) of a transmission system measures, during an initial coarse measurement, the time interval between the sending of a first ranging signal to the substation and the receipt of a reply signal. This reply signal has a frequency and amplitude substantially lower than the information signals sent by other substations (S1, S2) of the system to avoid interference therewith. During a subsequent fine measurement the main station measures the time interval between the sending of a second ranging signal and the receipt of a second reply signal having the same characteristics as the information signals. The other substations have to stop transmission of signals during an interval equal to the uncertainty time interval with which the equalisation delay was measured during the coarse measurement. To be able to apply this method, the receiver at the main station includes means to isolate (AZ) the first reply signal from the information signals and to recognize (COR) them, and a processing unit (PU) to determine the equalisation delay.

摘要翻译： 确定性矿变电站的均衡延迟（S3），一个传输系统测量主站（C）中，在初始粗略测量期间，第一测距信号的发送到变电站和收据的应答之间的时间间隔 信号。 此回复信号的频率和幅度比由系统的其他变电站（S1，S2）发送的，以避免与存在干扰信息信号低得多。 在测量过程中后来的细主站测量的第二测距信号的发送和接收具有相同特性作为信息信号的第二应答信号的之间的时间间隔。 其他变电站具有期间间隔等于所述不确定性的时间间隔，停止信号的发送与该均衡延迟的粗略测量期间所测得的。 为了能够应用该方法，在主站中的接收器包括用于分离（AZ）从信息信号的第一应答信号和识别（COR）它们，以及处理单元（PU），以确定性矿均衡延迟。

公开(公告)号：EP0758822A1

公开(公告)日：1997-02-19

申请号：EP95202191.3

申请日：1995-08-11

申请人： ALCATEL BELL Naamloze Vennootschap

发明人： Sierens, Christiaan Hendrik Jozef ,  Vandenabeele, Peter Michel Noel ,  Van Wonterghem, Geert Arthur Edith

IPC分类号： H04J3/16

CPC分类号： H04Q11/0478 ,  H04J3/1694 ,  H04L2012/561 ,  H04L2012/5672

摘要： The method is used in a system comprising a central station (CS) coupled to each of a plurality of terminal stations (TS1-TSn), wherein the central station (CS) is enabled to transmit downstream frames (DS) to the terminal stations to allow the terminal stations to transfer upstream frames (US) to the central station in time slots assigned thereto by means of access grant information (TEA1-TEA4) included in the downstream frames. The downstream frame (DS) is a superframe having a matrix structure with rows and columns, and a first portion and a second portion of the matrix structure is an overhead portion (S, TCB) and an information portion (ATM) respectively. The overhead portion includes the access grant information and the size of the overhead portion is flexibly adaptable. The central station and the terminal stations are adapted to send and to interprete the superframe.

摘要翻译： 该方法用于包括耦合到多个终端站（TS1-TSn）中的每一个的中心站（CS）的系统，其中中央站（CS）能够将下行帧（DS）发送到终端站 允许终端通过下游帧中包含的接入许可信息（TEA1-TEA4），在分配给它的时隙中将上行帧（US）传送到中心站。 下行帧（DS）是具有行和列的矩阵结构的超帧，矩阵结构的第一部分和第二部分分别是开销部分（S，TCB）和信息部分（ATM）。 开销部分包括访问许可信息，并且开销部分的大小灵活适应。 中心站和终端站适于发送和分配超帧。

公开(公告)号：EP0652655A1

公开(公告)日：1995-05-10

申请号：EP93203086.9

申请日：1993-11-04

申请人： ALCATEL BELL Naamloze Vennootschap

发明人： van de Voorde, Ingrid Zulma Benoit ,  Sierens, Christiaan Hendrik Jozef

IPC分类号： H04J3/06 ,  H04J14/08

CPC分类号： H04J14/08 ,  H04J3/0682 ,  H04L2012/561

摘要： The transmission system includes a main station (MS) and a plurality of substations (SS1, .., SS16) which are each coupled to that main station via a respective individual link (l1/l16) and a common link (lc) and wherein first and second information packets are transmitted from substation transmitters (STR) to a main station receiver (MREC) and from a main station transmitter (MTR) to substation receivers (SREC) respectively. The main station includes a transmission timer arrangement (TTM) to time the operation of the main station transmitter and of each of the substation transmitters to avoid concurrent receipt by each one of the substation receivers of a second information packet sent thereto and of disturbing packets resulting from a first information packet sent by the corresponding substation transmitter. These disturbing packets can be reflected first packets or can result from crosstalk between the substation transmitter and the corresponding substation receiver.

摘要翻译： 该传输系统包括主站（MS）和多个分站（SS1，...，SS16），每个分站经由相应的单独链路（11/16）和公共链路（1c）耦合到该主站，并且其中 第一和第二信息分组分别从变电站发射机（STR）发射到主站接收机（MREC）和从主站发射机（MTR）发射到变电站接收机（SREC）。 主站包括传输定时器装置（TTM），以定时主站发射器和每个变电站发射器的操作，以避免由每个变电站接收器同时接收发送给它的第二信息分组以及所产生的干扰分组 从相应的变电站发射机发送的第一个信息分组。 这些令人不安的数据包可能会被反射到第一个数据包，或者可能由变电站发射机和相应的变电站接收机之间的串扰产生。

公开(公告)号：EP0804004A1

公开(公告)日：1997-10-29

申请号：EP96201104.5

申请日：1996-04-25

申请人： ALCATEL BELL Naamloze Vennootschap

发明人： Sierens, Christiaan Hendrik Jozef ,  Vandenabeele, Peter Michel Noel

IPC分类号： H04L12/00 ,  H04L12/403

CPC分类号： H04L41/00 ,  H04L12/403

摘要： To admit network terminals (NT1, NT2, NT3, NT4) which are coupled to a central station (CS) in a multipoint-to-point network to log-in or to become operational, network terminal identifiers (TI_a, ..., TI_h) are partitioned in groups (G1, G2). One (G1) of the groups (G1, G2) is selected and only network terminals (NT3) having a network terminal identifier (TI_b) which forms part of the selected group (G1) are admitted to transmit a terminal identification message (TIM_NT3) towards the central station (CS) to attempt to become operational. The method is very efficient in case a large amount of network terminals attempt to log-in simultaneously. This happens for instance at initialisation of the network or after a network crash.

摘要翻译： 要接纳耦合到多点对点网络中的中心站（CS）登录或成为可操作的网络终端（NT1，NT2，NT3，NT4），网络终端标识符（TI_a，...， TI_h）分组（G1，G2）。 选择组（G1，G2）中的一个（G1），并且仅允许具有构成所选组（G1）的一部分的网络终端标识符（TI_b））的网络终端（NT3）发送终端标识消息（TIM_NT3） 朝向中央车站（CS）试图运作。 在大量网络终端尝试同时登录的情况下，该方法非常有效。 这种情况发生在网络初始化或网络崩溃之后。

公开(公告)号：EP0740431A1

公开(公告)日：1996-10-30

申请号：EP95201108.8

申请日：1995-04-28

申请人： ALCATEL BELL Naamloze Vennootschap

发明人： Vandenabeele, Peter ,  Sierens, Christiaan Hendrik Jozef ,  van der Plas, Gert ,  Krijntjes, Cornelis

IPC分类号： H04B7/26 ,  H04B10/207

CPC分类号： H04J3/1694 ,  H04B7/2643

摘要： To allocate time slots to terminal stations (T1 ... Ti ... Tn) for transmission of upstream burst (UB) in a network system wherein a central station (CS) is coupled to a plurality of terminal stations (T1 ... Ti ... Tn), the central station (CS) downstream transmits access grant information (AGI) which forms part of downstream frames (DF).
Each terminal station (Ti) is equipped with a cyclic local grant counter (LGC) which generates a local grant counter value between zero and a predetermined limit, and which is synchronized with a cyclic master grant counter (MGC) included in the central station (CS). The upstream time slots are bounded by two zero crossings of the cyclic local grant counter (LGC) and a terminal station (Ti) is allowed to transfer an upstream burst (UB) in such a time slot provided that this time slot is allocated to the terminal station (Ti) via previously received access grant information (AGI).

摘要翻译： 用于上行脉冲串（UB）（在网络系统中worin一个中心站（CS）被耦合到终端站T1的多个传输分配时隙到终端站（T1 ...钛... TN）... 钛... TN），中心站（CS）发送的下游形成所述下行帧（DF）的一部分的访问许可信息（AGI）。 每个终端站（Ti）的配备有循环本机许可计数器（LGC）哪些基因率零之间和一个本机许可计数器值的预定极限，和所有其与循环主许可计数器（MGC）同步，包括在所述中心站（ CS）。 所述上行时隙由循环本机许可计数器（LGC）与终端站（Ti）的的两个过零点为界被允许传送到上行脉冲串（UB）在寻求的时隙提供时隙被分配给thatthis时间 终端站（Ti）的经由之前接收的访问许可信息（AGI）。

公开(公告)号：EP0512642A1

公开(公告)日：1992-11-11

申请号：EP92201261.2

申请日：1992-05-05

申请人： ALCATEL BELL Naamloze Vennootschap

发明人： Sierens, Christiaan Hendrik Jozef ,  Mestdagh, Denis Julien Gilles ,  Van Der Plas, Gert

IPC分类号： H04J14/02

CPC分类号： H04J14/0298

摘要： Optical transceiver arrangement to transmit information signals (S1, ., Sn) from a transmitter arrangement (T) to a receiver arrangement (R) over an optical waveguide (L). This is achieved by modulating electrical subcarrier waveforms with these information signals (S1, ., Sn) using modulation means (M1, ., Mn), converting them to optical signals using electrical/optical convertors (E/O1, ., E/O1n), and by transmitting these optical signals, by means of time division multiplexing means (TDM1, ., TDMn), in different time slots if the subcarrier waveforms have the same frequency. The modulation- and time division multiplexing means are controlled by corresponding individual control modules (C1, ., Cn) under control of a central control module (CC) included in the receiver arrangement.

摘要翻译： 用于通过光波导（L）将信号信号（S1，...，Sn）从发射器装置（T）传输到接收器装置（R）的光收发器装置。 这通过使用调制装置（M1，...，Mn）调制具有这些信息信号（S1，...，Sn）的电子载波波形来实现，使用电/光转换器（E / O1，...，E / O1n ），并且如果子载波波形具有相同的频率，则通过在不同的时隙中通过时分复用装置（TDM1，...，TDMn）发送这些光信号。 调制和时分复用装置由在接收器装置中包括的中央控制模块（CC）的控制下由相应的单独控制模块（C1，...，Cn）控制。