专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO1995020846A1 SDH ADD-DROP MULTIPLEXER 审中-公开
标题翻译： SDH ADD-DROP多路复用器
公开(公告)号：WO1995020846A1
公开(公告)日：1995-08-03
申请号：PCT/GB1995000128
申请日：1995-01-24
申请人： GPT LIMITED , BARKER, Andrew, James
发明人： GPT LIMITED
IPC分类号： H04J03/08
CPC分类号： H04J3/08 , H04J2203/0089
摘要： An Add-Drop Multiplexer (ADMUX) for use in a synchronous digital hierarchy telecommunications system is provided with a by-pass whereby, in use, it can be made to interface with a higher bit rate transmission system.
摘要翻译：在同步数字层级电信系统中使用的分插复用器（ADMUX）具有旁路，在使用中，可以使其与较高比特率传输系统接口。

2. 发明申请

WO1994017614A1 SWITCH PROTECTION ARRANGEMENT 审中-公开
标题翻译：开关保护装置
公开(公告)号：WO1994017614A1
公开(公告)日：1994-08-04
申请号：PCT/GB1994000152
申请日：1994-01-26
申请人： GPT LIMITED , CHOPPING, Geoffrey , BARKER, Andrew, James , STONEY, David, Paul
发明人： GPT LIMITED
IPC分类号： H04L12/26
CPC分类号： H04Q11/0478 , H04J3/08 , H04J3/14 , H04J2203/0012 , H04J2203/006 , H04Q11/0414
摘要： A telephone switching network switch protection arrangement has information sent in the form of an information frame through a number of switching units, the information in the frame is re-organised in the switch between input and output and checked for parity by using the V4 byte in the framework before being sent from the switch.
摘要翻译：电话交换网络交换机保护装置具有通过多个交换单元以信息帧的形式发送的信息，帧中的信息被重新组织在输入和输出之间的切换中，并通过使用V4字节检查奇偶校验该框架在从交换机发送之前。

3. 发明申请

WO1995019082A1 SYNCHRONOUS TRANSMISSION SYSTEMS 审中-公开
标题翻译：同步传输系统
公开(公告)号：WO1995019082A1
公开(公告)日：1995-07-13
申请号：PCT/GB1995000014
申请日：1995-01-05
申请人： GPT LIMITED , BARKER, Andrew, James
发明人： GPT LIMITED
IPC分类号： H04L29/14
CPC分类号： H04Q11/0478 , H04J3/08 , H04J3/247 , H04J2203/0051 , H04J2203/006 , H04L69/40 , Y10S370/916
摘要： In a digital telecommunication system having data packages carrying identification data, the identification data is characterised in that it is unique to the package within a station and does not depend on the identity of the originating station.
摘要翻译：在具有携带识别数据的数据包的数字电信系统中，识别数据的特征在于其对于站内的包装是唯一的，并且不依赖于始发站的身份。

4. 发明申请

WO1995026084A1 PROTECTION SCHEME FOR SDH ADD/DROP MULTIPLEXER 审中-公开
标题翻译： SDH ADD / DROP多路复用器的保护方案
公开(公告)号：WO1995026084A1
公开(公告)日：1995-09-28
申请号：PCT/GB1995000618
申请日：1995-03-21
申请人： GPT LIMITED , BARKER, Andrew, James
发明人： GPT LIMITED
IPC分类号： H04J03/14
CPC分类号： H04J3/14 , H04J3/08 , H04J2203/006
摘要： An SDH telecommunications system includes a plurality of tributary cards through which signals are switched, a protection card is included for the tributary cards and a multiplex controller controls the output of a plurality of line termination (LTU's) units there being one unit provided respectively for each tributary card including the protection card, the multiplex controller being arranged to switch signals from a faulty tributary card to the protection card through the LTU associated with the faulty tributary card but without involving any switching taking place within the faulty tributary card so as to effectively replace the faulty tributary card.
摘要翻译： SDH电信系统包括多个辅助卡，信号被切换通过它们，辅助卡被包括保护卡，并且多路复用控制器控制多个线路终端（LTU）单元的输出，其中分别为每个单元提供一个单元包括保护卡的支路卡，多路复用控制器被布置成通过与故障支路卡相关联的LTU将信号从有故障的支路卡切换到保护卡，但不涉及在故障支路卡内发生任何切换，以便有效地替换有错的支流卡。

5. 发明申请

WO1998006223A1 VOICE BAND CALL ROUTING 审中-公开
标题翻译：语音电话呼叫路由
公开(公告)号：WO1998006223A1
公开(公告)日：1998-02-12
申请号：PCT/GB1997002075
申请日：1997-07-31
申请人： GPT LIMITED , WINCH, Nicholas, Richard
发明人： GPT LIMITED
IPC分类号： H04Q03/00
CPC分类号： H04M3/42229 , H04M3/42042 , H04M3/42102 , H04M3/436 , H04M3/533 , H04M2242/22 , H04Q3/0016 , H04Q3/005 , H04Q3/72 , H04Q2213/1307 , H04Q2213/13091 , H04Q2213/13097 , H04Q2213/13098 , H04Q2213/13103 , H04Q2213/13141 , H04Q2213/13179 , H04Q2213/13345 , H04Q2213/13377
摘要： A telecommunications network has routing means whereby a call to an identified user is routed to a User Voice-band Terminating Unit (UVTU) on the network or a further network in response to an in-band identification signal carried with the call.
摘要翻译：电信网络具有路由装置，由此响应于该呼叫携带的带内识别信号，对所识别的用户的呼叫被路由到网络上的用户语音终端单元（UVTU）或另一网络。

6. 发明申请

WO1997028621A1 CELL ALIGNERS 审中-公开
标题翻译：单元对齐器
公开(公告)号：WO1997028621A1
公开(公告)日：1997-08-07
申请号：PCT/GB1997000160
申请日：1997-01-17
申请人： GPT LIMITED , CHOPPING, Geoffrey
发明人： GPT LIMITED
IPC分类号： H04J03/06
CPC分类号： H04J3/0632 , H04L2012/5616 , H04L2012/565 , H04L2012/5652 , H04L2012/5674 , H04L2012/5681 , H04Q11/0478
摘要： Where an Asynchronous Transfer Mode (ATM) multiplexed data stream is terminated at a functional unit, virtual channel data being carried in cells in the data stream, a depacketiser has a plurality of cell buffers, each buffer storing the payload data contained in a single cell, the buffers being loaded in sequence in accordance with a message sequence number carried by each cell and emptied in accordance with a depacketiser algorithm to form a non-continuous data stream; a fill-in cell format generator which on the failure of a valid cell to arrive causes the replacement of the missing cell by a fill-in cell in the non-continuous data stream and a time-out function generator which is started after each cell has been depacketised and sometimes after fill-in replacement cells have been generated.
摘要翻译：在异步传输模式（ATM）复用数据流在功能单元处终止的情况下，虚拟信道数据在数据流中的小区中携带，解包器具有多个小区缓冲器，每个缓冲器存储包含在单个小区中的有效载荷数据根据每个小区携带的消息序列号依次加载缓冲器，并根据去分组算法将其清空以形成非连续数据流; 在有效单元的故障到达时，填充单元格格式生成器导致由非连续数据流中的填充单元替换缺失单元，以及在每个单元之后启动的超时函数发生器已经被去包装，有时在填充更换电池被生成之后。

7. 发明申请

WO1996039760A1 SYNCHRONISATION IN AN SDH NETWORK 审中-公开
标题翻译： SDH网络中的同步
公开(公告)号：WO1996039760A1
公开(公告)日：1996-12-12
申请号：PCT/GB1996001300
申请日：1996-05-31
申请人： GPT LIMITED , CHAPMAN, Steven, Taylor
发明人： GPT LIMITED
IPC分类号： H04J03/06
CPC分类号： H04J3/0647 , H04J3/0644 , H04J3/0679 , H04J2203/0042 , H04J2203/006 , H04J2203/0089
摘要： An SDH network is enclosed in which the occurrence of closed timing loops is prevented by causing each node to stamp the clock signal passing through that node with identifying data. In one embodiment, each node is operative to overstamp any node identifying data from preceding nodes and to indicate that the timing signal is not to be used for synchronisation purposes if the node to which it is being sent would result in a closed timing loop. In a second embodiment, node identifying data is added to a list, and if any node reads its own identifying data on that list, then it knows not to use the synchronisation signal. By counting the number of nodes through which the signal has passed, a means may be provided for preventing the occurrence of synchronisation reference chains of excessive length.
摘要翻译：封闭了一个SDH网络，通过使每个节点通过识别数据对通过该节点的时钟信号进行压缩，从而防止发生闭合定时循环。在一个实施例中，每个节点可操作以超过来自先前节点的任何节点识别数据，并指示定时信号不被用于同步目的，如果正在发送的节点将导致关闭的定时循环。在第二实施例中，将节点识别数据添加到列表中，并且如果任何节点读取其在该列表上的自己的识别数据，则其知道不使用同步信号。通过对信号通过的节点的数量进行计数，可以提供一种装置，用于防止出现长度过大的同步参考链。

8. 发明申请

WO1995027384A1 B-ISDN ACCESS 审中-公开
标题翻译： B-ISDN接入
公开(公告)号：WO1995027384A1
公开(公告)日：1995-10-12
申请号：PCT/GB1995000696
申请日：1995-03-28
申请人： GPT LIMITED , ARNOLD, John, Spencer
发明人： GPT LIMITED
IPC分类号： H04Q11/04
CPC分类号： H04Q11/0478 , H04J3/247 , H04L2012/561 , H04L2012/5613 , H04L2012/5615 , H04L2012/5616 , H04L2012/5619 , H04L2012/563 , H04L2012/5636 , H04L2012/5652 , H04L2012/5672
摘要： To increase the number of subscriber network ports which may be accessed on a Broadband Integrated Services Digital (B-ISDN) access network using Asynchronous Transfer Mode (ATM) technology where a Concentration Function is provided by statistical multiplexers, a Grooming Function by ATM switches and own-access-network connections is provided by combining "upstream" ports into the core network(s) and the "downstream" ports to subscribers into a common address group and each subscriber port and each core network(s) access port is allocated a unique OSI Layer 2 address the access network destination address being carried in the Virtual Path Identifier (VPI) field of each ATM cell formatted according to relevant CCITT recommendations for the User Network Interface (UNI) or the Network to Network Interface (NNI) and the Virtual Channel Identifier (VCI) field of the CCITT recommendations is divided into two sub-fields which carry the OSI Layer 2 source address and a Terminal Equipment Identifier (TEI) field respectively, the TEI field being used to identify a virtual channel at the source and destination ends of a path.
摘要翻译：为了增加使用异步传输模式（ATM）技术在宽带综合业务数字（B-ISDN）接入网络上访问的用户网络端口的数量，其中集中功能由统计多路复用器提供，ATM交换机和通过将“上游”端口组合到核心网络和“下游”端口到订户到公共地址组来提供自身接入网络连接，并且每个用户端口和每个核心网络接入端口被分配给唯一的OSI第2层将根据用户网络接口（UNI）或网络到网络接口（NNI）的相关CCITT建议格式化的每个ATM信元的虚拟路径标识符（VPI）字段中携带的接入网络目的地址，以及 CCITT建议的虚拟信道标识符（VCI）字段被分成两个子字段，这两个子字段携带OSI第二层源地址和终端设备标识符 ifier（TEI）字段，TEI字段用于标识路径的源端和目标端的虚拟通道。

9. 发明申请

WO1993022852A1 TRANSFER OF SDH OVERHEAD INFORMATION 审中-公开
标题翻译：转移SDH OVERHEAD信息
公开(公告)号：WO1993022852A1
公开(公告)日：1993-11-11
申请号：PCT/GB1993000855
申请日：1993-04-23
申请人： GPT LIMITED , JENNINGS, Alan, James , KINGS, Nicholas, John
发明人： GPT LIMITED
IPC分类号： H04J03/06
CPC分类号： H04J3/1611 , H04J3/0685
摘要： Overhead information is transmitted in a communications system by issuing synchronizing pulses to control an SDH line card. In a frame structure of the system 810 bits of information are organised in 9 rows of 90 bits for transmission at a rate of 8000 bits/second; the information transmitted contains both SOH and path overhead together with spare capacity. The information is presented so that the rising edge of a synchronizing pulse causes the sampling point for data extracted from the bus to be in the centre of the first bit of the frame.

10. 发明申请

WO1992010884A1 TDMA RANGING 审中-公开
标题翻译： TDMA范围
公开(公告)号：WO1992010884A1
公开(公告)日：1992-06-25
申请号：PCT/GB1991002198
申请日：1991-12-11
申请人： GPT LIMITED , HEDDERLY, David, Leslie
发明人： GPT LIMITED
IPC分类号： H04B07/212
CPC分类号： H04J3/0682
摘要： In Multistation Demand Assigned Time Division Multiple Access Systems digital information is communicated from a head end to a population of oustations so that all the outstations receive the same stream of digital information and select their traffic from it. Traffic is only sent to and from an outstation when there is a demand for it. As the outstations are at random ranges from the head end it is necessary to know the time of travel for a burst of information so they arrive at the head end sequentially. The traffic dependent free time is consolidated and made available for ranging-in outstations.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式