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1. 发明公开

EP0668678A3 Orthogonal frequency division multiplexing (OFDM) system and method for data sequence transmission 失效
标题翻译：一种用于正交频分复用系统（OFDM），和用于数据序列的传输方法。
公开(公告)号：EP0668678A3
公开(公告)日：1997-07-30
申请号：EP95200367.1
申请日：1995-02-15
申请人： ITALTEL SOCIETA ITALIANA TELECOMUNICAZIONI s.p.a.
发明人： Cariolaro, Gianfranco , Costanzi, Augusto
IPC分类号： H04L5/06
CPC分类号： H04L27/265 , H04L27/2631
摘要： Orthogonal frequency division multiplexing system and method (OFDM) for the transmission of data sequences or channels allowing to transmit and receive a double number of channels without considerable increase of the processing complexity. The transmission system foresees 2N data sequences (c o - C 2N - 1 ) and the same number of blocks (DS) for data staggering, which outputs are gathered in pairs and alternatively pre-modulated with an f o frequency and an f 1 frequency, and then summed up in N summation nodes (E), thus cutting in two the number of signals. A processor (N-IDFT) performs the discrete Fourier transform for N points and the processor outputs are connected to N extractors (HSE) of the parts with symmetries H o and H 1 using Hermitiane and Antiermitiane symmetries. The receiver has a dual structure.

2. 发明公开

EP0719066A2 Device and method for the management of multicast calls for broadcast audio and video services in a local ATM node 失效
标题翻译：装置和方法的音频和视频广播服务的组播呼叫在附近的ATM节点管理
公开(公告)号：EP0719066A2
公开(公告)日：1996-06-26
申请号：EP95118515.6
申请日：1995-11-24
申请人： ITALTEL SOCIETA ITALIANA TELECOMUNICAZIONI s.p.a.
发明人： Del Bo Marco, Angelo , Daolio, Alessandro , Daniele, Antonella , Morganti, Michele
IPC分类号： H04Q11/04 , H04L12/18
CPC分类号： H04L49/3081 , H04L12/18 , H04L49/201 , H04L49/203 , H04L49/30 , H04L49/3009 , H04L2012/5642 , H04Q11/0478
摘要： A device and a method for the management of multicast calls through broadband ATM network. Said device including a control unit connected to a service bus and to a cell replication unit set up by a plurality of replication units (DM), all of them equal and comprising:

a central buffer (CELL_BUFFER) for the storage of the ATM cells of which at least one copy has to be made;
selection means (SEL_TAB) set up by a number of locations equal to the number of customers abutting on the output ATM link;
a service block (SERVICE_BLOCK) containing data related to the number of ATM cell copies to be transmitted towards the customers abutting on said casting subunit (DM);
means (SYNC_OUT, CELL_COMPILING) for the addition of virtual path data to the cells stored in said central buffer (CELL_BUFFER).
摘要翻译：的装置和用于多播的管理的方法通过宽带ATM网络呼叫。所述设备包括连接到服务总线和由复制单元（DM）多个设置一个细胞复制单元的控制单元，它们全部相等，并且包括：用于的ATM信元的存储的中央缓冲液（CELL_BUFFER）其中至少一个拷贝要作出; 选择装置（SEL_TAB）通过许多等于客户邻接输出ATM链路上的数目的位置设置; 一个服务块（SERVICE_BLOCK）包含与ATM信元拷贝数数据是反式mitted朝向客户抵靠在所述铸造亚基（DM）; 装置（SYNC_OUT，CELL_COMPILING）代入相加虚拟路径的数据以存储在中央所述缓冲器（CELL_BUFFER）细胞。

3. 发明授权

EP0636282B1 LASER DEVICE 失效
标题翻译：激光装置
公开(公告)号：EP0636282B1
公开(公告)日：1996-06-19
申请号：EP93904007.7
申请日：1993-02-23
申请人： ITALTEL SOCIETA ITALIANA TELECOMUNICAZIONI s.p.a.
发明人： CHIARETTI, Guido , DI ROCCO, Daniele , LAPORTA, Paolo , SVELTO, Orazio
IPC分类号： H01S3/05 , H01S3/094 , H01S3/16 , G02B6/42
CPC分类号： H01S3/0627 , G02B6/29359 , G02B6/4206 , G02B6/421 , H01S3/025 , H01S3/0604 , H01S3/0615 , H01S3/07 , H01S3/08036 , H01S3/094053 , H01S3/09415 , H01S3/1062 , H01S3/1603 , H01S3/17 , H01S5/02252
摘要： Laser device having a monolithic structure to be employed in telecommunications, including a first laser (3) capable to emit radiations at a first wavelength μ1 pumped by a second laser (1) capable to emit radiations at a second wavelength μ2 through a first portion of focusing optical guide (2) and a first surface (4) essentially transparent to radiation μ2 and reflecting the radiation μ1. The first laser (3) is coupled, through a second surface (5) essentially transparent to said radiation μ1 and essentially reflecting said radiation μ2, to the first end of a second portion of focusing optical guide, whose second end is coated by a mirror (11). The presence of an air gap (8) having adjustable width is foreseen between said first surface (4) and the mirror (11).
摘要翻译：包括能够发射第一激光器（3）的第一激光器（3），所述第一激光器（3）能够发射第一波长μ1的辐射，所述第一激光器（3）由能够以第二波长μ2发射辐射的第二激光器（1）聚焦光导（2）和对辐射μ2基本上透明并反射辐射μ1的第一表面（4）。第一激光器（3）通过对所述辐射μ1基本上透明且基本上反射所述辐射μ2的第二表面（5）耦合到聚焦光导的第二部分的第一端，所述聚焦光导的第二端部被镜子（11）。在所述第一表面（4）和反射镜（11）之间预见有宽度可调节的气隙（8）的存在。

4. 发明公开

EP0692892A2 Method and equipment for the real time management of resources in a virtual private network in ATM technique 失效
标题翻译：一种用于在ATM中技术虚拟专用网络认证通信资源的管理的方法和设备
公开(公告)号：EP0692892A2
公开(公告)日：1996-01-17
申请号：EP95201884.4
申请日：1995-07-10
申请人： ITALTEL SOCIETA ITALIANA TELECOMUNICAZIONI s.p.a.
发明人： Rigolio, Giancarlo , Gallassi, Giorgio , Daniele, Antonella , Campagna, Riccardo , Canato, Luigi
IPC分类号： H04L12/56 , H04Q11/04
CPC分类号： H04L12/5602 , H04L2012/563 , H04L2012/5632 , H04L2012/5634 , H04Q11/0478
摘要： According to the invention, each user connected to a termination (CM) of a Customer Premises Network (CPN) belonging to an ATM Virtual Private Network (AVPN) before transmitting his data with a given transmission bandwidth, sends a request to the access node through which he is connected to the public network.
The user can start the data transmission only after having received confirmation of the acceptance of his bandwidth request by all the elements of the network involved in the connection.
According to the invention all the functions for sending requests and signals to the transmission bandwidth allocations are performed at ATM level using particular ATM cells called Fast Resource Management cells (FRM).
Always according to the invention the ATM-N node examines the content of a particular field of all the ATM cells and after identification of the same as Resource Management (RM) cells addresses the same to an output link (LINK-OUT) to which a Fast Resource Management server (FRMU) is connected.
摘要翻译：。根据本发明，每个用户连接到与给定的传输带宽发送他的数据之前，在ATM虚拟专用网络（AVPN）属于一个用户驻地网络（CPN）的终止（CM），发送通过所述接入节点的请求他连接到公共网络。所述用户可以仅通过在连接所涉及的网络的所有元素具有接受他的带宽请求的接收确认之后启动数据传输。。根据本发明的所有功能，用于发送请求和信号到传输带宽分配是在ATM水平使用特定的ATM信元称为快速资源管理信元（FRM）中进行。总是本发明的ATM-N节点检查所有的ATM信元的和相同资源管理（RM）细胞的识别之后的特定字段的内容雅丁地址相同，以在输出链路（LINK-OUT）到其上几乎资源管理服务器（FRMU）连接。

5. 发明公开

EP0683940A1 PROCESS AND DEVICE FOR THE DETECTION OF DISABLING TONE OF THE ECHO CANCELLER IN A TELEPHONE SWITCHING EXCHANGE 失效
标题翻译：方法和装置的回波消除器的DISABLE吨IN电话交换系统进行检测。
公开(公告)号：EP0683940A1
公开(公告)日：1995-11-29
申请号：EP94906917.0
申请日：1994-02-03
申请人： ITALTEL SOCIETA ITALIANA TELECOMUNICAZIONI s.p.a.
发明人： RAVEGLIA, Dalmazio , SARTORELLO, Paolo
IPC分类号： H04B3
CPC分类号： H04B3/23
摘要： Process for the detection of the disabling tone of the echo canceller in a telephone switching exchange, wherein such tone is set up by a sinusoidal signal with constant amplitude and frequency and with periodical phase reversal of 180 DEG . The sampled and digitized input signal x(n) is filtered in a digital band-pass filter (BP) and in a Hilbert transformer (HT) with filtering characteristics analogous to those of the band-pass filter (BP) and subsampled. In this way the two components of a complex signal r(m) are obtained from which the estimate of the value of a possible phase shift is made using the values assumed by such complex signal r(m) in at least three subsequent sampling times.

6. 发明公开

EP0678989A2 Method and arrangement for the timing of digital signal transmission in a TDMA PON system 失效
标题翻译：装置和用于控制在无源光TDMA系统用于数字数据传输的时钟方法。
公开(公告)号：EP0678989A2
公开(公告)日：1995-10-25
申请号：EP95200944.7
申请日：1995-04-14
申请人： ITALTEL SOCIETA ITALIANA TELECOMUNICAZIONI s.p.a.
发明人： Profumo, Alberto , Baldo, Paoli , D'Ascoli, Lucio
IPC分类号： H04J3/06
CPC分类号： H04J3/0626 , H04J3/0682 , H04L7/005
摘要： A method and an arrangement for the timing of digital signal transmission in a TDMA PON system including a line termination (OLT) to which a plurality of network units (ONU) are connected is described.
Network units (ONU) are of the type where the high speed data flow (DATA) to be transmitted to the line termination (OLT) in the serial format, is previously organized in bytes which, according to the invention, are stored inside an elastic memory (ELAS_MEM), by means of a write clock (WR_CK) obtained from the division of the high speed clock (HF_CK) of the relevant network unit (ONU).
The elastic memory (ELAS_MEM) is read by means of a read clock (RD_CK), always obtained from division of the above mentioned high speed clock (HF_CK), which phase is modified in response to the reception of synchronization information issued by the line termination (OLT).

7. 发明公开

EP0668678A2 Orthogonal frequency division multiplexing (OFDM) system and method for data sequence transmission 失效
标题翻译：系统zur正交频分复用（OFDM）和Verfahren zurÜbertragungvon Datenfolgen。
公开(公告)号：EP0668678A2
公开(公告)日：1995-08-23
申请号：EP95200367.1
申请日：1995-02-15
申请人： ITALTEL SOCIETA ITALIANA TELECOMUNICAZIONI s.p.a.
发明人： Cariolaro, Gianfranco , Costanzi, Augusto
IPC分类号： H04L5/06
CPC分类号： H04L27/265 , H04L27/2631
摘要： Orthogonal frequency division multiplexing system and method (OFDM) for the transmission of data sequences or channels allowing to transmit and receive a double number of channels without considerable increase of the processing complexity.
The transmission system foresees 2N data sequences (c o - C 2N - 1 ) and the same number of blocks (DS) for data staggering, which outputs are gathered in pairs and alternatively pre-modulated with an f o frequency and an f 1 frequency, and then summed up in N summation nodes (E), thus cutting in two the number of signals.
A processor (N-IDFT) performs the discrete Fourier transform for N points and the processor outputs are connected to N extractors (HSE) of the parts with symmetries H o and H 1 using Hermitiane and Antiermitiane symmetries.
The receiver has a dual structure.
摘要翻译：用于发送数据序列或信道的正交频分复用系统和方法（OFDM），允许发送和接收双数量的信道，而不会显着增加处理复杂度。传输系统预见2N数据序列（co-c2N-1）和相同数量的数据块（DS）用于数据交错，这些输出被成对收集并且以fo频率和f1频率预先调制，然后求和在N个求和节点（SIGMA）中，因此切割两个信号数。处理器（N-IDFT）对N个点执行离散傅立叶变换，并且使用Hermitiane和Antiermitiane对称性将处理器输出连接到具有对称Ho和H1的部分的N个提取器（HSE）。接收机具有双重结构。

8. 发明公开

EP0652684A2 Device for the implementation of ATM protocol layer functions in a B-ISDN network 失效
标题翻译： Einrichtung zurAusführungder ATM-Protokoll Schicht-Funktionen in einem B-ISDN Netzwerk。
公开(公告)号：EP0652684A2
公开(公告)日：1995-05-10
申请号：EP94203050.3
申请日：1994-10-20
申请人： ITALTEL SOCIETA ITALIANA TELECOMUNICAZIONI s.p.a.
发明人： Merli, Edoardo , Pavesi, Marco , Boiocchi, Gianluca , Prinetti, Giovanni
IPC分类号： H04Q11/04 , H04L12/56
CPC分类号： H04L49/3081 , H04L2012/5616 , H04L2012/5636 , H04L2012/5652 , H04Q11/0478
摘要： Device (ATM_LM) for the conversion into ATM cells of information segments (SAR_PDU) coming from an higher adaptation layer (AAL) and accompanied by connection and application identification parameters (ID_AAL.ID_SSCS), as well as for the reverse conversion, from ATM cells coming from an ATM layer and including channel (VCI) and path (VPI) identifications, into information segments including connection and application identification parameters (ID_AAL.ID_SSCS). It includes a traffic forming or shaping unit (ATMU) controlling the sequence of ATM cells transmission to the ATM layer according to parameters contained in a memory unit (SHAPER_RAM). These parameters relate to traffic profiles of each connection of the higher adaptation layer (AAL) and are updated by a microprocessor (CONTROL_µP) as number and characteristics of these connections vary.
摘要翻译：用于转换到来自更高适配层（AAL）并伴随有连接和应用识别参数（ID_AAL.ID_SSCS）的信息段（SAR_PDU）的ATM信元的装置（ATM_LM）以及用于ATM信元的反向转换来自ATM层并且将信道（VCI）和路径（VPI）标识包括在包括连接和应用识别参数（ID_AAL.ID_SSCS）的信息段中。它包括根据包含在存储单元（SHAPER_RAM）中的参数来控制ATM信元到ATM层的顺序的流量形成或整形单元（ATMU）。这些参数涉及较高适配层（AAL）的每个连接的流量简档，并且由微处理器（CONTROL_μP）更新，因为这些连接的数量和特性变化。

9. 发明公开

EP0651924A1 METHOD FOR THE CELLIZATION AND THE DECELLIZATION OF TRIBUTARY UNITS IN A STM-1 FRAME OF A TELECOMMUNICATION SYSTEM OF THE SYNCHRONOUS DIGITAL HIERARCHY TYPE (SDH) 失效
标题翻译：一种同步数字分级型（SDH）电信系统STM-1帧中小区化和减少小区的方法
公开(公告)号：EP0651924A1
公开(公告)日：1995-05-10
申请号：EP93915741.0
申请日：1993-06-29
申请人： ITALTEL SOCIETA ITALIANA TELECOMUNICAZIONI s.p.a.
发明人： BIANCALANA, Alberto , COLLIVIGNARELLI, Marco
IPC分类号： H04J3 , H04L12 , H04Q11
CPC分类号： H04J3/1617 , H04J2203/0089 , H04L2012/5646 , H04L2012/5672
摘要： Method for the cellization and decellization of a binary data flow including informative structures known as tributary units or TUs, and in particular TU-32, TU-21 and TU-12. Starting from an informative flow set up like an STM-1 frame (corresponding so to the international specifications and norms), through an adaptation operation (Higher Order Path Adaptation), the data flow is structured in an origin byte frame OF (Origin Frame), typically inside a switching node. This frame is cellizised and, after the processing of the information, it is reorganized in a destination byte frame DF (Destination Frame), and from this frame a STM-1 structure is obtained again, which will be transmitted to the following switching node without further elaboration at TU level.
摘要翻译：用于二进制数据流的细胞化和去细胞化的方法，包括称为支流单位或TU的信息结构，特别是TU-32，TU-21和TU-12。数据流从一个STM-1帧（与国际规范和规范相对应）建立的信息流开始，通过一个自适应操作（高阶路径适应），以原始字节帧OF（原始帧）通常在交换节点内。这个帧被信元化，并且在信息处理之后，它被重新组织在目的地字节帧DF（目的地帧）中，并且从该帧再次获得STM-1结构，其将被发送到下一个交换节点在TU层面进一步阐述。

10. 发明公开

EP0634851A3 Process and device for the equalization of the transmission time of a plurality of radio base stations 失效
标题翻译：装置和用于补偿多个无线电基站中的传输时间的方法。
公开(公告)号：EP0634851A3
公开(公告)日：1995-03-01
申请号：EP94110072.9
申请日：1994-06-29
申请人： ITALTEL SOCIETA ITALIANA TELECOMUNICAZIONI s.p.a.
发明人： Lazzari, Paolo
IPC分类号： H04J3/06
CPC分类号： H04J3/0682
摘要： Process and device for the equalization the transmission time To of m radio base stations (RFP) linked through one or more PCM lines to a master unit (MUI).
The process consists of measuring the delay (RRS) by which the slave stations receive a reference signal (Tm) emitted by the master unit, and storing in each slave station (RFP) a representative information of the complement of said delay (RRS) with respect to the above-said transmission time To.
The device comprises a counter (CK), qualified for the calculation of said reference signal (Tm), set up by the synchronism signal allocated in the time slot zero of the PCM frame, and blocked by a signal (r) available at the output of a recognition unit of the time slot zero of the PCM frame emitted by the interlocutor station.

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