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。

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。

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。

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。

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.

公开(公告)号：US09065571B2

公开(公告)日：2015-06-23

申请号：US10929978

申请日：2004-08-30

申请人： Frank H. Levinson

发明人： Frank H. Levinson

IPC分类号： H04B10/50 ,  H04B10/40

CPC分类号： H04B10/40

摘要： A controller for optical components. A controller includes an analog interface that is configured to connect to an optical component external to the controller. The analog interface is able to deliver and/or receive signals to and/or from the optical component. The controller includes a digital interface that is able to connect to a memory external to the controller. The digital interface may receive a digital representation of operating characteristics of the optical component. The controller is configured to deliver and/or receive signals to and/or from the optical component based on the digital representation of operating characteristics.

摘要翻译： 光学元件控制器。 控制器包括被配置为连接到控制器外部的光学部件的模拟接口。 模拟接口能够向和/或从光学部件传送和/或接收信号。 控制器包括能够连接到控制器外部的存储器的数字接口。 数字接口可以接收光学部件的操作特性的数字表示。 控制器被配置为基于操作特性的数字表示来向和/或从光学部件接收信号和/或从光学部件接收信号。

公开(公告)号：US08891970B2

公开(公告)日：2014-11-18

申请号：US11118589

申请日：2005-04-29

申请人： Frank H. Levinson ,  James K. Guenter ,  Jimmy A. Tatum

发明人： Frank H. Levinson ,  James K. Guenter ,  Jimmy A. Tatum

IPC分类号： H04B10/40 ,  H04B10/80

CPC分类号： H04B10/801

摘要： A controller for optical components. A controller includes mixed signal interface that is configured to connect to an optical component external to the controller. The mixed signal interface is able to deliver and/or receive signals to and/or from the optical component. The controller includes a digital interface that is able to connect to a memory external to the controller. The digital interface may receive a digital representation of operating characteristics of the optical component. The controller is configured to deliver and/or receive signals to and/or from the optical component based on the digital representation of operating characteristics.

摘要翻译： 光学元件控制器。 控制器包括被配置为连接到控制器外部的光学部件的混合信号接口。 混合信号接口能够向和/或从光学部件传送和/或接收信号。 控制器包括能够连接到控制器外部的存储器的数字接口。 数字接口可以接收光学部件的操作特性的数字表示。 控制器被配置为基于操作特性的数字表示来向和/或从光学部件接收信号和/或从光学部件接收信号。

公开(公告)号：US08068739B2

公开(公告)日：2011-11-29

申请号：US10866483

申请日：2004-06-11

申请人： Frank H. Levinson

发明人： Frank H. Levinson

IPC分类号： H04B10/00

CPC分类号： H04B10/801

摘要： Optical modules described herein include optical components such as lasers or photodiodes for communicating on fiber-optic networks. The lasers and photodiodes have analog interface such that the lasers and photodiodes can be controlled by a controller external to the optical modules. The optical modules also include memory modules. The memory modules store operating characteristics of the lasers and photodiodes. The operating characteristics can be read via digital interfaces that are connected to the memory modules. This allows the controller to appropriately adjust signals such that a randomly selected controller may be used with a randomly selected optical module.

摘要翻译： 本文描述的光学模块包括用于在光纤网络上通信的光学部件，例如激光器或光电二极管。 激光器和光电二极管具有模拟接口，使得激光器和光电二极管可以由光学模块外部的控制器控制。 光学模块还包括存储器模块。 存储器模块存储激光器和光电二极管的工作特性。 可以通过连接到存储器模块的数字接口读取操作特性。 这允许控制器适当地调整信号，使得随机选择的控制器可以与随机选择的光学模块一起使用。

公开(公告)号：US07332234B2

公开(公告)日：2008-02-19

申请号：US11231559

申请日：2005-09-21

申请人： Frank H. Levinson ,  Mark Farley

发明人： Frank H. Levinson ,  Mark Farley

IPC分类号： B32B9/00

CPC分类号： H04B10/40 ,  H04B10/6911

摘要： An optoelectronic device that has a network address (e.g., IF address) and participates in in-band traffic for purposes of performing functions (e.g., network diagnostics, network control, network provisioning, fault isolation, etc.) that are traditionally performed by host equipment. An embodiment of the invention may have a protocol engine and a status monitoring module. The protocol engine identifies data packets that are addressed to the optoelectronic device, and allows the optoelectronic device to insert packets of information generated by the device into in-band data. Logic of the optoelectronic device may modify the operating parameters of the device according to the control information included in the data packets. The status monitoring module detects the device's physical conditions and the conditions of its links. Status information generated by the status monitoring module may be incorporated into in-band data by the protocol engine such that the status information may be communicated to a host device or a remote device.

摘要翻译： 具有传统上由主机执行的功能（例如，网络诊断，网络控制，网络配置，故障隔离等）的具有网络地址（例如，IF地址）并且参与带内流量的光电子器件 设备。 本发明的实施例可以具有协议引擎和状态监视模块。 协议引擎识别寻址到光电器件的数据分组，并允许光电子器件将由器件产生的信息包插入带内数据。 光电器件的逻辑可以根据包含在数据分组中的控制信息来修改设备的操作参数。 状态监控模块检测设备的物理状况及其链路状况。 由状态监视模块生成的状态信息可以由协议引擎并入带内数据，使得可以将状态信息传送到主机设备或远程设备。

公开(公告)号：US07257328B2

公开(公告)日：2007-08-14

申请号：US09735710

申请日：2000-12-12

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： H04B10/04

CPC分类号： H04N21/615 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/6168

摘要： An optical signal return path system includes a transmitter having a sample clock generator for generating a sample clock and an RF signal receiver for receiving and converting an analog RF data signal into a first data stream of digitized RF data samples at a rate determined by the sample clock. Supplemental channel circuitry provides a second data stream. A multiplexor receives and combines the first data stream and second data stream, and an optical transmitter converting the combined data stream into a serialized optical data signal for transmission over an optical fiber. The second data stream may contain maintenance data reflecting an operational state of the transmitter. A receiver receives the optical data signal 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 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具有用于产生采样时钟的采样时钟发生器和RF信号接收器的发射器，RF信号接收器以模拟RF数据信号的速率接收数字化RF数据样本的第一数据流， 时钟。 补充信道电路提供第二数据流。 多路复用器接收并组合第一数据流和第二数据流，以及光发送器，将组合的数据流转换成串行化的光数据信号，以在光纤上传输。 第二数据流可以包含反映发射机的操作状态的维护数据。 接收器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。