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1. 发明授权

EP0439925B1 Maximum likelihood decoding with interference detection for frequency-hopped coded modulation systems 失效
标题翻译：最大似然与错误检测解码与编码调制跳频系统
公开(公告)号：EP0439925B1
公开(公告)日：1996-05-15
申请号：EP90312937.7
申请日：1990-11-28
申请人： AT&T Corp.
发明人： Saleh, Adel Abdel Moneim , Wei, Lee-Fang
IPC分类号： H04L1/02 , H03M13/22 , H04B1/66
CPC分类号： H04B1/715 , H04L27/186

2. 发明公开

EP0439925A3 Maximum likelihood decoding with interference detection for frequency-hopped coded modulation systems 失效
标题翻译：用于频率编码调制系统的干扰检测的最大似然解码
公开(公告)号：EP0439925A3
公开(公告)日：1993-01-20
申请号：EP90312937.7
申请日：1990-11-28
申请人： AT&T Corp.
发明人： Saleh, Adel Abdel Moneim , Wei, Lee-Fang
IPC分类号： H04L1/02 , H03M13/22 , H04B1/66
CPC分类号： H04B1/715 , H04L27/186
摘要： In a wireless local area network, predetermined interference-detection sequences of signal points, known at both the transmitter and receiver, are transmitted over a plurality of hopping frequencies along with a sequence of data signal points taken from a modulated code exhibiting built-in diversity. In the receiver, the extent to which there are errors in the received interference-detection signal points is used as a mechanism for identifying the likely occurrence of strong interference. If there are no, or few, errors, decoding proceeds normally. However, if the number of errors is above a predetermined threshold, it is assumed that the transmitted signal was subjected to significant interference and an erasure is declared. This is used as "side" information by the decoder to improve its ability to accurately recover data in the presence of interference.

3. 发明公开

EP0684704A2 A diversity antenna for a wrist telephone 失效
标题翻译：分集式天线的手腕电话。
公开(公告)号：EP0684704A2
公开(公告)日：1995-11-29
申请号：EP95302820.6
申请日：1995-04-26
申请人： AT&T Corp.
发明人： Blonder, Greg E. , Knoedl, Goerge, Jr. , Johnson, Bertrand Harold , Saleh, Adel Abdel Moneim
IPC分类号： H04B1/38 , H04B7/02
CPC分类号： G04G21/04 , G04R60/04 , H01Q1/273 , H04B1/385 , H04B2001/3866 , H04B2001/3872
摘要： A radiotelephone wrist device includes a case having a transceiver and a strap attached to the case for fastening the device to a user's wrist. The strap has a top layer and a bottom layer. The top layer is attached to the bottom layer by a pivot mechanism which facilitates rotating at least a portion of the top layer with respect to the bottom layer. A microphone is located on the strap and electrically connected to the transceiver. A speaker is located at an end of the top layer of the strap and electrically connected to the transceiver. A first antenna is located in the bottom layer of the strap. A second antenna is located in the rotatable portion of the top layer of the strap.

4. 发明公开

EP0304213A2 NxN single-mode optical waveguide coupler 失效
标题翻译：为N×N-Monomoden-Wellenleiterkoppler。
公开(公告)号：EP0304213A2
公开(公告)日：1989-02-22
申请号：EP88307344.7
申请日：1988-08-09
申请人： AT&T Corp.
发明人： Darcie, Thomas Edward , Saleh, Adel Abdel Moneim
IPC分类号： G02B6/28 , G02F1/29 , H04Q3/52
CPC分类号： G02F1/313 , G02B6/2804 , G02B6/2821
摘要： The present invention relates to a NxN single-mode optical coupler (10, 26) employing evanescent wave coupling between mutually adjacent optical waveguides (11) sufficiently close to one another to facilitate coupling among all the waveguides. An optical signal of a narrow frequency band, e.g. appreciably less than 100 gigahertz, introduced to an input port (15i) of one of the waveguides is found to be nonuniformly distributed among the output ports (16) of the coupler. A first embodiment uses the nonuniform distributions of narrowband optical signals to the output ports of the coupler to enable the present invention to be used as essentially a selective switching device. A second embodiment introduces one or more predetermined broadband optical signals to one or more input ports of the coupler to produce an appreciably uniform power distribution among the output ports of the coupler. A third embodiment uses electrooptic or magnetooptic waveguides and the application of a high-frequency, continuously changing magnitude, oscillatory electric or magnetic field (17), respectively, throughout the coupling region of the waveguides to produce a substantially uniform power distribution among the output ports of the coupler for a narrowband optical signal applied to an input port of the coupler.
摘要翻译：本发明涉及一种在相互邻近的光波导（11）之间使用ev逝波耦合的NxN单模光耦合器（10,26），其彼此充分接近以便于所有波导之间的耦合。窄频带的光信号，例如，被发现导入到波导中的一个的输入端口（15i）的明显小于100千兆赫的发现在耦合器的输出端口（16）中不均匀地分布。第一实施例使用窄带光信号的不均匀分布到耦合器的输出端口，以使本发明能够用作基本上选择性的开关装置。第二实施例将一个或多个预定的宽带光信号引入耦合器的一个或多个输入端口，以在耦合器的输出端口之间产生明显均匀的功率分布。第三实施例使用电光或磁光波导，并且在波导的整个耦合区域分别应用高频连续变化的振幅电场或磁场（17），以在输出端口之间产生基本均匀的功率分布的耦合器，用于施加到耦合器的输入端口的窄带光信号。

5. 发明公开

EP0684704A3 A diversity antenna for a wrist telephone 失效
标题翻译：多元化手稿
公开(公告)号：EP0684704A3
公开(公告)日：1999-11-10
申请号：EP95302820.6
申请日：1995-04-26
申请人： AT&T Corp.
发明人： Blonder, Greg E. , Knoedl, Goerge, Jr. , Johnson, Bertrand Harold , Saleh, Adel Abdel Moneim
IPC分类号： H04B1/38 , H04B7/02
CPC分类号： G04G21/04 , G04R60/04 , H01Q1/273 , H04B1/385 , H04B2001/3866 , H04B2001/3872
摘要： A radiotelephone wrist device includes a case having a transceiver and a strap attached to the case for fastening the device to a user's wrist. The strap has a top layer and a bottom layer. The top layer is attached to the bottom layer by a pivot mechanism which facilitates rotating at least a portion of the top layer with respect to the bottom layer. A microphone is located on the strap and electrically connected to the transceiver. A speaker is located at an end of the top layer of the strap and electrically connected to the transceiver. A first antenna is located in the bottom layer of the strap. A second antenna is located in the rotatable portion of the top layer of the strap.
摘要翻译：无线电话机手腕装置包括具有收发器的壳体和附接到壳体的带子，用于将装置紧固到使用者的手腕上。带子具有顶层和底层。顶层通过枢转机构附接到底层，该枢转机构有助于相对于底层旋转顶层的至少一部分。麦克风位于吊带上并与收发器电连接。扬声器位于带的顶层的端部并且电连接到收发器。第一个天线位于皮带的底层。第二天线位于带的顶层的可旋转部分中。

6. 发明公开

EP0439925A2 Maximum likelihood decoding with interference detection for frequency-hopped coded modulation systems 失效
标题翻译： Maximalwahrscheinlichkeitsdekodierung mitStörungsdetektionfürFrequenzsprungsysteme mit kodierter Modulation。
公开(公告)号：EP0439925A2
公开(公告)日：1991-08-07
申请号：EP90312937.7
申请日：1990-11-28
申请人： AT&T Corp.
发明人： Saleh, Adel Abdel Moneim , Wei, Lee-Fang
IPC分类号： H04L1/02 , H03M13/22 , H04B1/66
CPC分类号： H04B1/715 , H04L27/186
摘要： In a wireless local area network, predetermined interference-detection sequences of signal points, known at both the transmitter and receiver, are transmitted over a plurality of hopping frequencies along with a sequence of data signal points taken from a modulated code exhibiting built-in diversity. In the receiver, the extent to which there are errors in the received interference-detection signal points is used as a mechanism for identifying the likely occurrence of strong interference. If there are no, or few, errors, decoding proceeds normally. However, if the number of errors is above a predetermined threshold, it is assumed that the transmitted signal was subjected to significant interference and an erasure is declared. This is used as "side" information by the decoder to improve its ability to accurately recover data in the presence of interference.
摘要翻译：在无线局域网中，在发射机和接收机两者已知的信号点的预定干扰检测序列与多个跳频一起发送，并且从表示内置分集的调制码中获取的数据信号点序列。在接收机中，使用接收到的干扰检测信号点存在错误的程度作为识别强干扰的可能发生的机制。如果没有或几个错误，解码正常进行。然而，如果错误的数量高于预定阈值，则假设发送的信号受到显着的干扰，并且声明了擦除。这被解码器用作“侧”信息，以提高其在存在干扰的情况下准确地恢复数据的能力。

7. 发明公开

EP0741499A2 Non-blocking optical cross-connect structure for telecommunications network 失效
标题翻译：查尔斯·费尔南德斯（Querverbindungsstrukturfürein Fernmeldenetz）
公开(公告)号：EP0741499A2
公开(公告)日：1996-11-06
申请号：EP96302073.0
申请日：1996-03-26
申请人： AT&T Corp.
发明人： Alferness, Rodney Clifford , Saleh, Adel Abdel Moneim
IPC分类号： H04Q11/00 , H04B10/20
CPC分类号： H04Q11/0005 , H04Q2011/0009 , H04Q2011/0011 , H04Q2011/0015 , H04Q2011/0052
摘要： Wavelength division multiplexing, spatial switching cross-connect structures which may be deployed as intermediate nodes of an all optical network to route any input channel on any source fiber to any destination fiber at any available wavelength to achieve full connectivity between the nodes of the network. The non-blocking cross-connect structure comprises a wavelength division demultiplexer for receiving multiple wavelength channels from each source fiber and for separating received channels into N wavelengths so that the wavelengths are organized according to a corresponding fiber of origin, a nonblocking optical structure for spatially and independently rearranging the received wavelengths so that wavelengths having a common destination fiber are grouped together, and a wavelength division multiplexer for multiplexing together wavelengths having the same destination fiber.
摘要翻译：波分复用，空间交换交叉连接结构，其可以部署为全光网络的中间节点，以将任何源光纤上的任何输入信道路由到任何可用波长的任何目的地光纤，以实现网络节点之间的完全连接。非阻塞交叉连接结构包括用于从每个源光纤接收多个波长信道并用于将接收的信道分离为N个波长的波分解复用器，使得波长根据相应的原始光纤来组织，用于空间的非阻塞光学结构并且独立地重新排列所接收的波长，使得具有公共目的地光纤的波长被分组在一起，以及用于将具有相同目的地光纤的波长多路复用的波分多路复用器。

8. 发明授权

EP0550145B1 Low noise, optical amplifier having post-amplification loss element 失效
标题翻译：一种低噪声光放大器与布置在损失元件后面的放大器
公开(公告)号：EP0550145B1
公开(公告)日：1996-04-03
申请号：EP92310672.8
申请日：1992-11-23
申请人： AT&T Corp.
发明人： Habbab, Isam M. I. , Saleh, Adel Abdel Moneim
IPC分类号： H01S3/06 , H01S3/25 , H01S3/09 , G02B6/26 , H04B10/16
CPC分类号： H01S3/06754 , H01S3/06758 , H01S2301/02

9. 发明公开

EP0614291A1 All-optical network architecture 失效
标题翻译： Rein optische Netzwerkarchitektur。
公开(公告)号：EP0614291A1
公开(公告)日：1994-09-07
申请号：EP94301120.5
申请日：1994-02-16
申请人： AT&T Corp. , DIGITAL EQUIPMENT CORPORATION , MASSACHUSETTS INSTITUTE OF TECHNOLOGY
发明人： Chan, Vincent W. S. , Gallager, Robert G. , Kirby, Alan Joseph , Saleh, Adel Abdel Moneim
IPC分类号： H04B10/20
CPC分类号： H04Q11/0001 , H04J14/0227 , H04J14/0228 , H04J14/0238 , H04J14/0241 , H04J14/028 , H04J14/0282
摘要： There is disclosed the architecture for an all-optical network which employs a three level hierarchy using wavelength division multiplexing. At the lowest level of the hierarchy are Level-0 all-optical networks (36, 37, 38, 39). The Level-0 networks are "local" broadcast networks each of which supports a plurality of access ports and in which each access port can "hear" all the local traffic transmitted by all other access ports in the same Level-0 network. Each Level-0 network shares wavelengths internally, but there is extensive reuse of wavelengths among different Level-0 networks. The next higher level (62, 64), which is the intermediate level, Level-1, is essentially a wavelength router coupled with one or more of the Level-0 networks to provide a wavelength path to one or more directly connected Level-0 networks or, in combination with a Level-2 network (80), a light path to one or more Level-0 networks outside itself. The Level-2 are second level wavelength routing networks which provide light paths, as opposed to wavelength paths, between Level-1 networks. The Level-2 networks may be as simple as fiber trunks alone or they may employ frequency changing devices in addition to wavelength routers and/or spatial switches.
摘要翻译：公开了使用波分复用的三级层次的全光网络架构。层级最低的是Level-0全光网络（36,37,38,39）。 Level-0网络是“本地”广播网络，每个网络都支持多个接入端口，其中每个接入端口可以“听到”同一Level-0网络中所有其他接入端口发送的所有本地流量。每个Level-0网络在内部共享波长，但在不同的Level-0网络之间广泛地使用了波长。作为中间级别Level-1的下一个较高级别（62,64）本质上是与一个或多个Level-0网络耦合的波长路由器，以提供到一个或多个直接连接的Level-0的波长路径网络或与Level-2网络（80）组合的通向自己以外的一个或多个Level-0网络的光路。 Level-2是在Level-1网络之间提供与波长路径相反的光路的第二级波长路由网络。 Level-2网络可以像单独的光纤干线一样简单，或者除了波长路由器和/或空间交换机之外，它们可以使用频率改变设备。

10. 发明公开

EP0550145A1 Low noise, optical amplifier having post-amplification loss element 失效
标题翻译： Rauscharmer optischerVerstärkermit Verlustelement nach derVerstärkung。
公开(公告)号：EP0550145A1
公开(公告)日：1993-07-07
申请号：EP92310672.8
申请日：1992-11-23
申请人： AT&T Corp.
发明人： Habbab, Isam M. I. , Saleh, Adel Abdel Moneim
IPC分类号： H01S3/06 , H01S3/25 , H01S3/09 , G02B6/26 , H04B10/16
CPC分类号： H01S3/06754 , H01S3/06758 , H01S2301/02
摘要： In an optical arrangement for amplifying an input lightwave signal by a predetermined amount to a desired output level, an optical amplifier (15) is connected to a loss element (18). The optical amplifier is pumped by an amount exceeding a nominal amount wherein the nominal amount is the amount of pumping needed to attain the desired output level at the optical amplifier output. By attenuating the signal output from the optical amplifier, the loss element generates an output signal from the optical arrangement at the desired output level. This optical arrangement is characterized by an improved noise performance (noise figure) over standard optical amplifiers.
摘要翻译：在用于将预定量的输入光波信号放大到期望输出电平的光学装置中，光放大器（15）连接到损耗元件（18）。泵浦的光放大器的量超过标称量，其中标称量是在光放大器输出端获得所需输出电平所需的泵浦量。通过衰减从光放大器输出的信号，损耗元件在期望的输出电平上产生来自光学装置的输出信号。这种光学布置的特征在于与标准光放大器相比改进的噪声性能（噪声系数）。

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