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81.发明公开
公开(公告)号：EP0955734A2
公开(公告)日：1999-11-10
申请号：EP99303564.1
申请日：1999-05-06
Applicant: NORTEL NETWORKS CORPORATION
Inventor： Carleton, Gregory
Abstract: A method and apparatus for determining the state, at any time in the past, relative to a present state, of a linear feedback shift register comprises determining an inverse transition matrix which, if multiplied by the current state in modulo-2 arithmetic, yields the state one step into the past; and multiplying in modulo-2 arithmetic the present state of the linear feedback shift register by the inverse transition matrix N times to obtain the state N steps into the past.
Abstract translation: 用于确定线性反馈移位寄存器的过去相对于当前状态的任何时间的状态的方法和装置包括确定逆转换矩阵，如果乘以模2运算中的当前状态，则产生 走过去一步; 并且以模2运算将线性反馈移位寄存器的当前状态乘以逆转换矩阵N次以获得过去的状态N步。
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公开(公告)号：EP0954943A1
公开(公告)日：1999-11-10
申请号：EP97946978.0
申请日：1997-12-03
Applicant: NORTEL NETWORKS CORPORATION
Inventor： CHAPMAN, Alan, Stanely, John , KUNG, Hsiang-Tsung
Abstract: Multi-media networks will require that a data flow be given certain quality-of-service (QOS) for a network connection but pre-negotiation of this sort is foreign to the current data networking model. The real time traffic flow in the data network requires distinct limits on the tolerance to delay, and the variations in that delay. Interactive voice and video demand that the total delay does not exceed the threshold beyond which human interaction is unacceptably impaired. The present invention allows the network to discover the nature of the service for each traffic flow, classifies it dynamically, and exercises traffic conditioning by means of such techniques as admission control and scheduling when delivering the traffic downstream to support the service appropriately.
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公开(公告)号：EP0953273A1
公开(公告)日：1999-11-03
申请号：EP98900620.0
申请日：1998-01-16
Applicant: NORTEL NETWORKS CORPORATION
CPC classification number: H04Q11/0478 , H04L2012/5605 , H04L2012/5606 , H04L2012/561 , H04L2012/5656 , H04L2012/5675
Abstract: Communicative services are transported over a TDMA or TDM access network by packetising the services into minicells which minicells are transported within minislots created by subdivision of the TDM time slots. For low bit rate communicative services only, minislots are allocated periodically rather than in the blocks that are allocated to high bit rate services. The packetisation delay inherent within the transport layer can be significantly reduced for these low bit rate services.
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公开(公告)号：EP0784896B1
公开(公告)日：1999-11-03
申请号：EP95910378.9
申请日：1995-03-08
Applicant: NORTEL NETWORKS CORPORATION
Inventor： PISTILLI, Antonio
CPC classification number: H04M3/18 , H02H9/048 , H04M2201/80
Abstract: A telephone line interface circuit with d.c. amplifiers (12) coupled to tip and ring paths is protected against transient voltages by a crowbar-type protection device (52) coupled via a diode bridge (28, 30) to the tip and ring paths, positive and negative terminals of the diode bridge being connected respectively to ground and via a diode (54) to a negative supply voltage line for the amplifiers. The diode prevents discharge of a capacitor (26), coupled between the negative supply voltage line and ground, through the protection device when it conducts. A locked up state, in which the amplifiers maintain holding current to the protection device after a transient voltage, is avoided by further diodes (56, 58) coupled from the negative terminal of the diode bridge to inputs of the amplifiers, or by controlling a current limiter (34) to interrupt current to the capacitor when the diode is reverse biased, so that the capacitor discharges. The current limiter includes a resistance (38) and inductance (40) in series for sensing current, whereby initial charging current for the capacitor is reduced on closing of relay contacts (K1, K2) in series with the current limiter, and relay contact deterioration is avoided.
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85.发明公开
公开(公告)号：EP0949784A2
公开(公告)日：1999-10-13
申请号：EP99302640.0
申请日：1999-04-01
Applicant: NORTEL NETWORKS CORPORATION
Inventor： Humphrey, Leslie D.
CPC classification number: H04L25/03866 , H04B3/32 , H04L27/2602 , H04L2012/5652 , H04L2012/5673 , H04Q11/0478
Abstract: To reduce the effects of cross-talk in, principally, a wireline communication system (10), idle cells usually required for rate adaptation (32) are substituted by null cells (36) and sequence scrambling (40) required for data protection and associated with traffic is abandoned in relation to the null cell. Subsequent modulation (48) of each null cell is further restricted in the sense that a transmitted power associated with the null cell is, preferably, minimised. In this latter respect, minimum power is achieved within a modulation scheme through a two-stage process. First, a zero level state is selected within a symbol constellation of the modulation scheme (100), and then a confidence level associated with recovery of the zero level state is enhanced by always sending zero values as at least pairs of associated symbols. A receiver (14) then only interprets incoming data as a null cell or the zero level state when all associated symbols are recovered as the zero value. Hence, a metric distance (146) between the zero level state (140) and any other symbol state (102-132) in the constellation (100) is increased to unity by a multidimensional presence of the zero level state.
Abstract translation: 为了减少串扰的影响，主要是有线通信系统（10），频率适配（32）通常需要的空闲信元被数据保护所需的空单元（36）和序列加扰（40）所替代 相对于零单元格，流量被放弃。 在这样的意义上，每个空单元的后续调制（48）进一步被限制，优选地，与空单元相关联的发送功率最小化。 在后一方面，通过两阶段过程在调制方案内实现最小功率。 首先，在调制方案（100）的符号星座内选择零电平状态，然后通过总是发送零值作为至少对相关联的符号来增强与恢复零电平状态相关联的置信水平。 当所有相关联的符号被恢复为零值时，接收器（14）仅将输入数据解释为空单元或零电平状态。 因此，零电平状态（140）和星座（100）中的任何其他符号状态（102-132）之间的度量距离（146）通过零电平状态的多维存在而增加到单位。
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Patent Agency Ranking
公开(公告)号：EP0948859A1
公开(公告)日：1999-10-13
申请号：EP97935406.0
申请日：1997-08-14
Applicant: NORTEL NETWORKS CORPORATION
Inventor： MEUBUS, Charles , JODOIN, Sylvain , BERNARDI, Alan
CPC classification number: H04M3/537 , H04M3/42 , H04M3/42161 , H04M3/4228 , H04M3/428 , H04M3/4285 , H04M3/533 , H04M3/54 , H04M7/0033 , H04M7/122 , H04M2201/60 , H04M2203/156
Abstract: A method is provided that allows data access service provider subscribers to manage their telephone service through a data connection. The subscriber is enabled to obtain call data information and is provided real-time control. During a data call, a visual incoming call indicator informs the subscriber, through a pop-up window, connected to the data access service provider that there is a call attempt. A visual message waiting indicator allows a subscriber, connected to the data access service provider to be notified of a pending message on the voice message system. A visual call disposition allows the subscriber, through the data connection, to dispose of calls. The call disposition options include forwarding a call to voice mail, playing an announcement to the calling party, forwarding the call to another line, sending a text message which could be converted to speech using text to speech technology, answering the call using voice over data call or terminating the data connection in order to accept the call.
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公开(公告)号：EP0947083A1
公开(公告)日：1999-10-06
申请号：EP97947674.0
申请日：1997-12-11
Applicant: NORTEL NETWORKS CORPORATION
CPC classification number: H04M1/274583 , H04M1/271 , H04M1/56 , H04M1/57
Abstract: An apparatus and method for maintaining records in a telephone directory involves maintaining a personal directory of at least one record associated with at least one party with which a telephone call is conducted. The record has a field for identifying the party and a frequency of use field for storing a number representing the number of times a call is conducted with the party. In response to a call conducted with a party, the personal directory is searched for a record associated with the party and upon finding such a record, the contents of the frequency of use field of the record are incremented and the records of the personal directory are sorted in an order dependent upon the contents of the frequency of use fields.
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88.发明公开System and method for user-interactive bookmarking of information content 审中-公开系统与Verfahren zum interaktiven Anbringen von Lesezeichen auf Informationsinhalten
公开(公告)号：EP0944009A2
公开(公告)日：1999-09-22
申请号：EP99301954.6
申请日：1999-03-15
Applicant: NORTEL NETWORKS CORPORATION
Inventor： Brisebois, Michel A.
IPC: G06F17/30
CPC classification number: G06F17/30882 , G06F17/30855 , G06F17/30884
Abstract: A system and method for providing improved bookmarking of remotely provided user-interactive information such as WWW page content are provided. When a bookmark of a page is created, in addition to storing a remote file access pointer such as a universal resource locator, a locator element is stored which identifies a particular subset of the page. When the bookmark is subsequently accessed, only the updated particular subset is displayed, thereby eliminating the need for users to repeatedly scroll through material in which they are not interested. A super-bookmarking option is provided which provides for a bookmark which results in the display of a collage of previously created bookmarked material.
Abstract translation: 提供了一种用于提供诸如WWW页面内容之类的远程提供的用户交互信息的改进书签的系统和方法。 当创建页面的书签时，除了存储诸如通用资源定位符之类的远程文件访问指针之外，存储标识页面的特定子集的定位符元素。 当随后访问书签时，仅显示更新的特定子集，从而不需要用户重复地滚动他们不感兴趣的材料。 提供了一种超书签选项，其提供书签，其导致显示先前创建的加书签材料的拼贴。
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公开(公告)号：EP0885416B1
公开(公告)日：1999-09-15
申请号：EP96941553.8
申请日：1996-12-19
Applicant: NORTEL NETWORKS CORPORATION
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90.发明授权POLARIZATION INDEPENDENT OPTICAL DIRECTIONAL COUPLER WAVELENGTH TUNABLE FILTERS/RECEIVERS 失效BY偏振无关光定向耦合器波长可调谐滤波器或 接收器
公开(公告)号：EP0776491B1
公开(公告)日：1999-09-15
申请号：EP95908851.9
申请日：1995-02-22
Applicant: NORTEL NETWORKS CORPORATION
Inventor： WU, Chi
CPC classification number: G02B6/12007 , G02B6/12004 , G02F1/3132 , G02F1/3133 , G02F2203/055 , G02F2203/06
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