公开(公告)号：US6002768A

公开(公告)日：1999-12-14

申请号：US643892

申请日：1996-05-07

申请人： Andres Albanese ,  Rolf Oppliger

发明人： Andres Albanese ,  Rolf Oppliger

IPC分类号： H04L9/32 ,  H04N7/15 ,  H04N7/173 ,  H04N21/2347 ,  H04N21/2543 ,  H04N21/258 ,  H04N21/472 ,  H04N21/4788 ,  H04N21/6334 ,  H04K1/00 ,  H04L9/00

CPC分类号： H04N21/47202 ,  H04L9/0836 ,  H04L9/3268 ,  H04N21/2347 ,  H04N21/2543 ,  H04N21/25875 ,  H04N21/4788 ,  H04N21/63345 ,  H04N7/15 ,  H04N7/17318

摘要： An online conference session management system includes computer sites associated with a conference session holder, a plurality of service providers and a plurality of conference session participants. The conference session holder and each service provider has a respective associated public/private key pair for a specified online conference session. Each service provider is provided with an active participant registration certificate that gives the service provider the authority to register participants of the specified conference session, as well as authority to register other service providers as active participants of the specified conference session by providing those other service providers with respective active participant registration certificates. Each active participant registration certificate is digitally signed by either the conference session holder or one of the service providers using a private key of a public/private key pair unique to the conference session holder or respective service provider. Each active participant registration certificate includes the public key of the public/private key pair unique to the service provider whose authority to register participants is given by that active participant registration certificate. The service providers provide participants of the specified conference session with passive participant registration certificates. Each passive participant registration certificate is digitally signed by a service provider using a private key associated with that service provider. A passive participant registration certificate is validated by verifying the certificate's digital signature with the public key associated with the service provider that provided the passive participant registration certificate, and then validating that service provider's active participant registration certificate.

摘要翻译： 在线会议管理系统包括与会议持有者，多个服务提供商和多个会议对话参与者相关联的计算机站点。 会议持有者和每个服务提供商具有用于指定的在线会议会话的相应的相关联的公钥/私钥对。 向每个服务提供商提供主动参与者注册证书，其给予服务提供者注册指定的会议会话的参与者的权限，以及通过提供那些其他服务提供商将其他服务提供商注册为指定会议会话的主动参与者的权限 各自主动参与者注册证书。 每个活动参与者注册证书由会议持有者或其中一个服务提供商使用会议会话持有者或相应服务提供商唯一的公共/私人密钥对的专用密钥进行数字签名。 每个活动参与者注册证书包括由该活动参与者注册证书给予登记参与者权限的服务提供商唯一的公钥/私钥对的公开密钥。 服务提供商向指定的会议会议的参与者提供被动参与者注册证书。 每个被动参与者注册证书由服务提供商使用与该服务提供商相关联的私钥进行数字签名。 通过使用与提供被动参与者登记证书的服务提供商相关联的公钥验证证书的数字签名，然后验证该服务提供商的主动参与者注册证书，来验证被动参与者注册证书。

公开(公告)号：US5617541A

公开(公告)日：1997-04-01

申请号：US361802

申请日：1994-12-21

申请人： Andres Albanese ,  Michael G. Luby ,  Johannes F. Bloemer ,  Jeffrey A. Edmonds

发明人： Andres Albanese ,  Michael G. Luby ,  Johannes F. Bloemer ,  Jeffrey A. Edmonds

IPC分类号： H04L29/06 ,  G06F3/00

CPC分类号： H04L29/06

摘要： A data distribution system has a number of data processing devices interconnected by data transmission media. At least one of the data processing devices transmit data to other data processing devices in the system. The transmitting data processing system includes memory for storing the data to be transmitted, programmable data processing circuitry, and data transmission apparatus for transmitting an encoded representation of the stored message as a sequence of data packets. Priority data, stored in the memory, represents a plurality of assigned priority levels for specified portions of the stored message such that portions of the stored message have respective assigned priority levels. A data encoding program generates an encoded representation of the stored message that includes, for each portion of the stored message, a level of redundant data corresponding to the priority level assigned to that portion of the stored message. As a result, the encoded representation of the stored message includes different levels of redundant data for the different portions of the stored message. Each receiving data processing system includes memory for storing received data, programmable data processing circuitry, and data receiving apparatus for receiving at least a portion of the transmitted data packets. A data decoding program generates a decoded representation of the received data stream. The data decoding program decodes different portions of the received encoded data in accordance with the different levels of redundant data included in the received data stream.

摘要翻译： 数据分发系统具有通过数据传输介质互联的多个数据处理设备。 数据处理设备中的至少一个将数据发送到系统中的其他数据处理设备。 发送数据处理系统包括用于存储要发送的数据的存储器，可编程数据处理电路和用于发送所存储的消息的编码表示作为数据分组序列的数据发送装置。 存储在存储器中的优先级数据表示存储消息的指定部分的多个分配的优先级，使得存储的消息的部分具有相应的分配的优先级。 数据编码程序生成存储消息的编码表示，对于存储消息的每个部分，包括对应于分配给存储消息的该部分的优先级的冗余数据的级别。 结果，存储的消息的编码表示包括用于存储消息的不同部分的不同级别的冗余数据。 每个接收数据处理系统包括用于存储接收数据的存储器，可编程数据处理电路和用于接收所发送的数据分组的至少一部分的数据接收装置。 数据解码程序生成接收数据流的解码表示。 数据解码程序根据包含在接收数据流中的不同级别的冗余数据来解码接收到的编码数据的不同部分。

公开(公告)号：US5058101A

公开(公告)日：1991-10-15

申请号：US641627

申请日：1991-01-16

申请人： Andres Albanese ,  Ronald C. Menendez

发明人： Andres Albanese ,  Ronald C. Menendez

IPC分类号： H04B10/213 ,  H04J14/02

CPC分类号： H04B10/278 ,  H04B10/27 ,  H04B10/271 ,  H04B10/275 ,  H04J14/02 ,  H04J14/028 ,  H04J14/0283 ,  H04J14/0286

摘要： An optical fiber point-to-multipoint communications network is disclosed of the type having a bus topology. The broadcasting terminal (101) of the network includes an information transmitting laser (102) and a local oscillator laser (103) the signals of which are launched onto opposite ends of an optical fiber bus (104) to counter-propagate thereon. At each of the M stations (105-1-105-M) connected to the bus, a wideband directional coupler (106-1-106-M) couples portions of each of the counter-propagating signals to a balanced coherent detector (107-1-107-M). The effective total power input to the balanced coherent detector at each of the stations is equal regardless of the location of the station relative to the broadcasting terminal. In another embodiment the stations are connected to ring-shaped optical subbuses which are coupled to the main bus. Several two-way point-to-multipoint embodiments are disclosed which employ wavelength division multiplexing techniques to enable communications from the stations back to the broadcasting terminal.

摘要翻译： 公开了具有总线拓扑的类型的光纤点对多点通信网络。 网络的广播终端（101）包括信号发射激光器（102）和本地振荡器激光器（103），其信号被发射到光纤总线（104）的相对端上以在其上反向传播。 在连接到总线的每个M站（105-1-105-M）中，宽带定向耦合器（106-1-106-M）将每个反向传播信号的部分耦合到平衡相干检测器（107 -1-107-M）。 无论站相对于广播终端的位置如何，输入到每个站的平衡相干检测器的有效总功率相等。 在另一个实施例中，站连接到耦合到主总线的环形光子母线。 公开了几个双向点对多点实施例，其使用波分复用技术来实现从站到广播终端的通信。

公开(公告)号：US4479212A

公开(公告)日：1984-10-23

申请号：US357773

申请日：1982-03-12

申请人： Andres Albanese

发明人： Andres Albanese

IPC分类号： H04J3/04 ,  H04M3/56 ,  H04Q11/04 ,  H04J3/02

CPC分类号： H04M3/561 ,  Y10S370/914

摘要： In a digital, time division multiplex communication system, a first-in, first-out buffer (10) at each subscriber station is employed to establish a conference call. The digital words of the conferees being listened to are entered into the buffer as they are received. They are then read out at a different bit rate such that they all occupy an equal fraction of the word period. The words are decoded in a standard D/A converter (11) and combined in a filter (12).

摘要翻译： 在数字时分复用通信系统中，采用每个用户站的先入先出缓存（10）来建立会议呼叫。 正在收听的与会者的数字字在收到时被输入缓冲区。 然后，它们以不同的比特率读出，使得它们都占据单词周期的相等分数。 这些字在标准D / A转换器（11）中解码，并组合在一个滤波器（12）中。

公开(公告)号：US4514843A

公开(公告)日：1985-04-30

申请号：US446191

申请日：1982-12-02

申请人： Andres Albanese

发明人： Andres Albanese

IPC分类号： H04B10/20 ,  H04L12/407 ,  H04L12/44 ,  H04J6/00 ,  H04Q11/04

CPC分类号： H04L12/407 ,  H04L12/44

摘要： The efficiency of packet switching networks is improved by using a collision avoidance technique rather than collision detection. The subscriber links are connected to a common node. A collision avoidance circuit in each link monitors the node to determine whether it is in a busy or idle status. The first message to arrive places the node in a busy status at which time all other, nontransmitting links are disconnected, thereby avoiding a collision. Later arriving messages are stored in buffers at each subscriber location and are transmitted when the node is again idle. In this manner messages are transmitted on a first-come basis, and can be of arbitrary duration regardless of bit rate.

摘要翻译： 通过使用碰撞避免技术而不是碰撞检测来提高分组交换网络的效率。 订户链路连接到公共节点。 每个链路中的冲突避免电路监视节点，以确定它是处于忙碌还是空闲状态。 要到达的第一个消息将使节点处于忙碌状态，此时所有其他非传输链路都断开连接，从而避免了冲突。 后来的到达消息存储在每个用户位置的缓冲区中，并且当节点再次空闲时被发送。 以这种方式，消息以先到先后的方式发送，并且可以是任意的持续时间，而不管比特率。

公开(公告)号：US4081670A

公开(公告)日：1978-03-28

申请号：US739575

申请日：1976-11-08

申请人： Andres Albanese

发明人： Andres Albanese

IPC分类号： H01S5/062 ,  H01S5/068 ,  H01S5/0683 ,  H04B10/155 ,  H04B9/00

CPC分类号： H04B10/504 ,  H01S5/06213 ,  H01S5/06808 ,  H01S5/06812 ,  H01S5/06832

摘要： An injection laser is automatically stabilized so that the laser operates above threshold when the laser current is modulated. The invention makes use of the fact that the laser junction voltage saturates at currents above the threshold. A signal which modulates the laser current and causes the laser current to fall below the threshold level therefore results in a change in the junction voltage. These changes in the junction voltage are monitored and used to increase the bias current so that the laser operates above threshold.

摘要翻译： 注射激光器自动稳定，使得当激光电流被调制时，激光器工作在阈值以上。 本发明利用这样一个事实，即激光结电压在高于阈值的电流下饱和。 因此，调制激光电流并使激光电流降到阈值以下的信号导致结电压的变化。 监测结电压的这些变化，并用于增加偏置电流，使激光器工作在阈值以上。

公开(公告)号：US4039309A

公开(公告)日：1977-08-02

申请号：US709307

申请日：1976-07-28

申请人： Andres Albanese ,  Louis Maggi

发明人： Andres Albanese ,  Louis Maggi

IPC分类号： G02B6/25 ,  C03B33/06

CPC分类号： G02B6/25 ,  Y10T225/12 ,  Y10T225/304 ,  Y10T225/325 ,  Y10T225/357

摘要： The present invention relates to a method and apparatus for breaking optical fibers. The present method comprises the steps of: clamping an optical fiber at two spaced-apart peripheral areas on opposite sides of the area of intended break; heating the area of the intended break to at least the annealing temperature of the fiber; scoring the fiber along the line of intended break; and either bending and pulling or pulling the fiber apart to produce a break with a flat end surface. The heating step may also be advantageously employed to melt or evaporate a jacket surrounding the optical fiber adjacent to the area of intended break.

摘要翻译： 本发明涉及一种用于断开光纤的方法和装置。 本方法包括以下步骤：将光纤夹在预期断裂区域相对两侧的两个间隔开的周边区域; 将预期断裂面积加热到至少纤维的退火温度; 沿着意图断裂线划分纤维; 并且弯曲和拉动或拉动纤维分开以产生具有平坦端面的断裂。 也可以有利地采用加热步骤来熔化或蒸发邻近预期断裂区域的围绕光纤的护套。

公开(公告)号：US4712859A

公开(公告)日：1987-12-15

申请号：US777953

申请日：1985-09-19

申请人： Andres Albanese ,  Steven S. Cheng

发明人： Andres Albanese ,  Steven S. Cheng

IPC分类号： G02B6/34 ,  H04B10/207 ,  H04B10/26 ,  G02B6/28 ,  H04B9/00

CPC分类号： H04B10/2587 ,  G02B6/12007 ,  G02B6/29332 ,  G02B6/2938 ,  G02B6/4246 ,  H04B10/272 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282 ,  H04J2014/0253

摘要： A distributed star network for providing point-to-point and broadcast-type communication among a plurality of user stations is disclosed. The distributed star network is implemented using single mode optical technology including single mode lasers and single mode optical fibers.

摘要翻译： 公开了一种用于在多个用户站之间提供点对点和广播型通信的分布式星形网络。 分布式星形网络采用单模光纤技术实现，包括单模激光器和单模光纤。

公开(公告)号：US4683573A

公开(公告)日：1987-07-28

申请号：US784878

申请日：1985-09-24

申请人： Andres Albanese

发明人： Andres Albanese

IPC分类号： H01S5/06 ,  H01S5/068 ,  H01S3/04

CPC分类号： H01S5/06808 ,  H01S5/0612

摘要： Apparatus is disclosed which stabilizes the temperature, and thereby the output wavelength, of an injection laser. Means (50 and 23) monitor the laser terminal voltage across a laser (11) and derive a voltage laser therefrom which is proportional to the junction voltage of the laser. Means (24) compares the voltage to a reference value from source (27) and a temperature controller (35) adjusts the laser temperature in response to the results of the comparison.Further embodiments of the present invention vary the output wavelength of the laser by varying the reference value from source (27) against which the laser junction voltage is compared.

摘要翻译： PCT No.PCT / US85 / 01814 Sec。 371日期1985年9月24日第 102（e）1985年9月24日PCT PCT日期：1985年9月24日PCT公布。 出版物WO87 / 01875 日期为1987年3月26日。公开了一种稳定注射激光器的温度，从而稳定输出波长的装置。 装置（50和23）监测激光器（11）上的激光端子电压，并从其中导出与激光器的结电压成比例的电压激光器。 装置（24）将电压与来自源（27）的参考值进行比较，并且温度控制器（35）响应于比较的结果来调节激光器温度。 本发明的其它实施例通过改变与激光结电压进行比较的源极（27）的参考值来改变激光器的输出波长。

公开(公告)号：US4630256A

公开(公告)日：1986-12-16

申请号：US724941

申请日：1985-04-19

申请人： Andres Albanese

发明人： Andres Albanese

IPC分类号： H04B10/213 ,  H04L12/403 ,  H04B9/00

CPC分类号： H04L12/403

摘要： Two, operationally independent networks are established along a common transmission bus by having the signals for the respective networks propagate in opposite directions, and directionally coupling the station units of the respective networks to the transmission bus so as to receive and transmit signals in one of the two directions. The two networks can operate at different bit rates and wavelengths and, being operationally independent, can be installed and added to at different times.

摘要翻译： 通过使各个网络的信号通过相反的方向传播，并且将各个网络的站单元定向耦合到传输总线，从而在公共传输总线中建立两个操作上独立的网络，以便接收和发送信号 两个方向 两个网络可以以不同的比特率和波长工作，并且在操作上是独立的，可以在不同的时间安装和添加。