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1. 发明授权

US07778554B2 System and method for transmitting data on return path of a cable television system 有权
标题翻译：用于在有线电视系统的返回路径上发送数据的系统和方法
公开(公告)号：US07778554B2
公开(公告)日：2010-08-17
申请号：US11838165
申请日：2007-08-13
申请人： Frank H. Levinson , Gerald F. Sage , Arthur Michael Lawson , Willem A. Mostert
发明人： Frank H. Levinson , Gerald F. Sage , Arthur Michael Lawson , Willem A. Mostert
IPC分类号： H04B10/06
CPC分类号： H04N21/615 , H04N7/17309 , H04N7/22 , H04N21/6168
摘要： An optical signal return path system includes a transmitter and a receiver. The receiver receives an optical data signal from the transmitter and recovers therefrom a digital data stream and an associated first clock having an associated first clock rate. The data stream is stored in a memory device at the first clock rate. A clock generator generates a second clock having an associated second clock rate that is adjusted in accordance with a clock control signal. A control circuit reads data from the memory device at a rate corresponding to the second clock rate and generates a fullness signal that indicates whether the memory device is fuller more full than a predefined threshold fullness level. A clock speed adjusting circuit generates the clock control signal in accordance with the fullness signal.
摘要翻译：光信号返回路径系统包括发射机和接收机。接收机从发射机接收光学数据信号并从其中恢复数字数据流和相关联的第一时钟具有相关联的第一时钟速率。数据流以第一时钟速率存储在存储器件中。时钟发生器产生具有根据时钟控制信号调整的相关联的第二时钟速率的第二时钟。控制电路以对应于第二时钟速率的速率从存储器件读取数据，并产生指示存储器件是否比预定义的阈值充满度级更充满的丰满度信号。时钟速度调节电路根据丰满度信号产生时钟控制信号。

2. 发明授权

US5566171A Multi-mode high speed network switch for node-to-node communication 失效
标题翻译：用于节点到节点通信的多模高速网络交换机
公开(公告)号：US5566171A
公开(公告)日：1996-10-15
申请号：US404873
申请日：1995-03-15
申请人： Frank H. Levinson
发明人： Frank H. Levinson
IPC分类号： H04L12/52 , H04L12/56
CPC分类号： H04L12/52 , H04L49/351 , H04L49/101 , H04L49/205 , H04L49/25 , H04L49/254
摘要： The present invention provides a an improvement in circuit switching for a network comprising a switching apparatus having a plurality of transceivers for interfacing directly with a like plurality of user nodes. Each of the transceivers having a receive and transmit through port for passing data to and from user nodes and a network, said data comprising a connect sequence, a first wait sequence, a routing packet, a second wait sequence, user data, and a disconnect sequence. The switching apparatus further includes means for isolating each transceiver to loop back data when not in use and switching means for directly connecting any pair of transceivers. Finally a switch controller is provided for establishing and prioritizing matrix connections and disconnections, and decoding routing packets. In operation, a requesting node sequentially transmits a connect sequence, routing packet and user data to the network switch assuming node-to-node communication has been established with a target node, whereupon the isolation means loops user data back to the requesting node when the target node is unavailable.
摘要翻译：本发明提供了一种用于网络的电路交换的改进，包括具有多个收发器的交换设备，用于直接与相似的多个用户节点进行接口。每个收发器具有接收和发送通过端口用于向用户节点和网络传递数据，所述数据包括连接序列，第一等待序列，路由分组，第二等待序列，用户数据和断开连接序列。开关装置还包括用于隔离每个收发器以在不使用时回送数据的装置和用于直接连接任何一对收发器的切换装置。最后，提供了一个开关控制器，用于建立矩阵连接和断开的优先顺序，以及解码路由分组。在操作中，请求节点依次将连接序列，路由分组和用户数据发送到网络交换机，假定已经与目标节点建立了节点到节点的通信，因此当隔离装置将用户数据回送到请求节点时目标节点不可用。

3. 发明授权

US5008877A Optical signal recovery for distribution communication system 失效
标题翻译：配电通信系统的光信号恢复
公开(公告)号：US5008877A
公开(公告)日：1991-04-16
申请号：US120308
申请日：1987-11-12
申请人： Frank H. Levinson
发明人： Frank H. Levinson
IPC分类号： H04L7/00 , H04L12/28
CPC分类号： H04L12/28 , H04L7/0008
摘要： A bus receiver communicates with a bus head end transmitter via a communication path different from read and write optical fibers used by a plurality of remote terminals on the bus so that the bus receiver can quickly determine beginning and end of time slots, clock frequency, and signal trigger levels using a minimum amount of bits attached to a front end of each packet in each time slot.
摘要翻译：总线接收器通过与总线上的多个远程终端所使用的读写光纤不同的通信路径与总线头端发送器通信，使得总线接收器可以快速地确定时隙的开始和结束，时钟频率和信号触发电平使用附加到每个时隙中每个数据包前端的最小数量的位。

4. 发明授权

US4770529A Alignment of optical waveguides 失效
标题翻译：光波导对准
公开(公告)号：US4770529A
公开(公告)日：1988-09-13
申请号：US904750
申请日：1986-09-08
申请人： Frank H. Levinson , Joseph Zucker , Nelson M. Shen , Robert Schlingensiepen
发明人： Frank H. Levinson , Joseph Zucker , Nelson M. Shen , Robert Schlingensiepen
IPC分类号： G01B11/27 , G02B6/38 , G01B11/26
CPC分类号： G01B11/272 , G02B6/3803
摘要： A method of aligning an optical signal source and a waveguide which comprises; directing the signal into the waveguide, monitoring the intensity of the signal backscattered along the waveguide, and altering the relative positions of source and waveguide in response to said intensity.
摘要翻译：一种对准光信号源和波导的方法，包括：将信号引导到波导中，监测沿着波导反向散射的信号的强度，以及响应于所述强度改变源极和波导的相对位置。

5. 发明授权

US4542502A Reconfigurable collision avoiding system, station and protocol for a two path multiple access digital communications system 失效
公开(公告)号：US4542502A
公开(公告)日：1985-09-17
申请号：US567350
申请日：1983-12-30
申请人： Frank H. Levinson , John O. Limb
发明人： Frank H. Levinson , John O. Limb
IPC分类号： H04L12/417 , H04J3/00
CPC分类号： H04L12/42 , H04L12/417
摘要： In order to control the transfer of packets of information among a plurality of stations, e.g., digital computers, the instant communications system, station and protocol contemplate first and second oppositely directed signal paths. At least two stations are coupled to both the first and the second signal paths. A station includes arrangements for reading (and writing) signals from (and on) each of the two paths. Signals are read from either path by an arrangement which electrically precedes the arrangement for writing signals on the path. If the station has a packet to transmit, it can overwrite a busy control field of a packet on either path. Also having read a packet signal from the path, a logical interpretation may be made within the station as to whether the path is busy or is not busy. If the path is not busy, the packet may be written on the path by overwriting any signal thereon. If the path is busy, the station may defer the writing until the path is detected as not busy e.g. by reading a busy control field of another packet. Here the two paths are coupled to form two ring structures so the packets flow down the path to a destination station. Eventually all packets will be transmitted and the busy control field loops around to a station which is designated as a control station. The control station, responsive to detecting that all packets have been transmitted on one of the paths, may transmit a start cycle packet on the one path, responsive to which event a new cycle may be started by initializing each station on the one path and by permitting each initialized station to transmit. In the event of an electrical open, the system, station and protocol are adapted to reconfigure the system so that the station electrically preceding the open functions as an end station while the station electrically succeeding the open functions as a head station.

6. 发明授权

US08923704B2 Computer system with modular optical devices 有权
标题翻译：具有模块化光学装置的计算机系统
公开(公告)号：US08923704B2
公开(公告)日：2014-12-30
申请号：US10929923
申请日：2004-08-30
申请人： Frank H. Levinson
发明人： Frank H. Levinson
IPC分类号： H04B10/40 , H04B10/27
CPC分类号： H04B10/27
摘要： A computer system with modular optical components. The computer system includes a controller. The controller includes an analog interface that can deliver and/or receive analog signals to and/or from an optical component. The controller further includes a digital interface that is able to receive a digital representation of operating characteristics of the optical component.
摘要翻译：具有模块化光学元件的计算机系统。计算机系统包括控制器。控制器包括可以向光学部件传送和/或从光学部件接收模拟信号的模拟接口。控制器还包括能够接收光学部件的操作特性的数字表示的数字接口。

7. 发明授权

US08233798B2 Parallel transmission of data streams in a star-configured network 有权
标题翻译：在星形网络中并行传输数据流
公开(公告)号：US08233798B2
公开(公告)日：2012-07-31
申请号：US12198865
申请日：2008-08-26
申请人： Frank H. Levinson
发明人： Frank H. Levinson
IPC分类号： H04J14/00 , H04B10/00
CPC分类号： H04J14/0282
摘要： A data communications network includes N nodes, where N is an integer greater than one, and a star coupler coupled to each of the N nodes. Each node includes a transmitter and a receiver. The star coupler is configured to receive, in parallel, data streams transmitted from a plurality of the N nodes, and to passively retransmit, in parallel, each of the received data streams to each node of the N nodes. Each receiver is configured to receive multiple data streams in parallel.
摘要翻译：数据通信网络包括N个节点，其中N是大于1的整数，以及耦合到N个节点中的每一个的星形耦合器。每个节点包括发射机和接收机。星形耦合器被配置为并行地接收从多个N个节点发送的数据流，并且并行地将每个接收的数据流被动地重发到N个节点的每个节点。每个接收器被配置为并行地接收多个数据流。

8. 发明授权

US07529487B2 System and method for transmitting data on return path of a cable television system 有权
标题翻译：用于在有线电视系统的返回路径上发送数据的系统和方法
公开(公告)号：US07529487B2
公开(公告)日：2009-05-05
申请号：US11838167
申请日：2007-08-13
申请人： Frank H. Levinson , Gerald F. Sage , Arthur Michael Lawson , Willem A. Mostert
发明人： Frank H. Levinson , Gerald F. Sage , Arthur Michael Lawson , Willem A. Mostert
IPC分类号： H04B10/00
CPC分类号： H04N21/615 , H04N7/17309 , H04N7/22 , H04N21/6168
摘要： A return path transmitter includes an optical signal receiver configured to receive a digital optical signal and generate therefrom a first digitized RF data stream and a sample clock. The return path transmitter further includes an RF signal receiver, coupled to the optical signal receiver, configured to receive and convert the analog RF data signal into a second digitized RF data stream of digitized RF data samples at a rate determined by the sample clock. The return path transmitter further includes a summing circuit configured to mathematically sum the first and second digitized RF data streams so as to generate a third digitized RF data stream. The return path transmitter further includes an optical transmitter configured to convert an output data stream into a serialized optical data signal for transmission over an optical fiber, the output data stream including the third digitized RF data stream.
摘要翻译：返回路径发射器包括光信号接收器，其被配置为接收数字光信号并由其产生第一数字化RF数据流和采样时钟。返回路径发射机还包括耦合到光信号接收器的RF信号接收器，其被配置为以由采样时钟确定的速率接收并将模拟RF数据信号转换成数字化RF数据样本的第二数字化RF数据流。返回路径发射机还包括一个求和电路，其被配置为对第一和第二数字化的RF数据流进行数学求和，以产生第三数字化的RF数据流。返回路径发射机还包括配置成将输出数据流转换成串行化的光数据信号以便通过光纤传输的光发射机，该输出数据流包括第三数字化的RF数据流。

9. 发明申请

US20090080887A1 Parallel Transmission of Data Streams in a Star-Configured Network 有权
标题翻译：数据流在星形配置网络中的并行传输
公开(公告)号：US20090080887A1
公开(公告)日：2009-03-26
申请号：US12198865
申请日：2008-08-26
申请人： Frank H. Levinson
发明人： Frank H. Levinson
IPC分类号： H04J14/00
CPC分类号： H04J14/0282
摘要： A data communications network includes N nodes, where N is an integer greater than one, and a star coupler coupled to each of the N nodes. Each node includes a transmitter and a receiver. The star coupler is configured to receive, in parallel, data streams transmitted from a plurality of the N nodes, and to passively retransmit, in parallel, each of the received data streams to each node of the N nodes. Each receiver is configured to receive multiple data streams in parallel.
摘要翻译：数据通信网络包括N个节点，其中N是大于1的整数，以及耦合到N个节点中的每一个的星形耦合器。每个节点包括发射机和接收机。星形耦合器被配置为并行地接收从多个N个节点发送的数据流，并且并行地将每个接收的数据流被动地重发到N个节点的每个节点。每个接收器被配置为并行地接收多个数据流。

10. 发明授权

US07333199B2 Aligning optical components with three degrees of translational freedom 有权
标题翻译：将光学元件与三个平移自由度对准
公开(公告)号：US07333199B2
公开(公告)日：2008-02-19
申请号：US11125918
申请日：2005-05-10
申请人： Chris Togami , Gary Sasser , Rudolf J. Hofmeister , Paul K. Rosenberg , Frank H. Levinson , Axel Mehnert
发明人： Chris Togami , Gary Sasser , Rudolf J. Hofmeister , Paul K. Rosenberg , Frank H. Levinson , Axel Mehnert
IPC分类号： G01B11/00 , G02B6/36
CPC分类号： G02B6/4204 , G02B6/423 , G02B6/4246
摘要： The principles of the present invention relate to aligning optical components with three degrees of translational freedom. A lens pin, a lens base, and a molded package are aligned in a first direction, a second direction, and a third direction such that the signal strength of optical signals transferred between a lens included in the lens pin and the molded package is optimized. The lens pin is mechanically coupled to the lens base to fix the position of the lens relative to the molded package in the first direction. Subsequently, the lens base and the molded package are realigned in the second and third directions such that the signal strength is again optimized. The lens base is mechanically coupled to the molded package to fix the position of the lens base relative to the molded package in the second and third directions.
摘要翻译：本发明的原理涉及将具有三个平移自由度的光学部件对准。透镜销，透镜基座和模制封装在第一方向，第二方向和第三方向上对准，使得在包括在透镜销的透镜和模制封装之间传输的光信号的信号强度被优化。透镜销被机械联接到透镜基座，以在第一方向上固定透镜相对于模制包装的位置。随后，透镜基座和模制封装在第二和第三方向上重新对准，使得信号强度再次被优化。透镜基座机械耦合到模制封装件，以在第二和第三方向上固定透镜基座相对于模制封装件的位置。

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