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1. 发明申请

US20140056583A1 SYMBOL ALIGNMENT IN HIGH SPEED OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING TRANSMISSION SYSTEMS 审中-公开
标题翻译：高速光学正交分频多路复用传输系统中的符号对齐
公开(公告)号：US20140056583A1
公开(公告)日：2014-02-27
申请号：US14009978
申请日：2012-04-04
申请人： Roger Giddings , Jianming Tang
发明人： Roger Giddings , Jianming Tang
IPC分类号： H04L27/26 , H04J14/00
CPC分类号： H04L27/2601 , H04J14/00 , H04L27/2663 , H04L27/2697
摘要： The present invention discloses a method for symbol synchronisation in high speed optical orthogonal frequency division multiplexing (OOFDM) transmission systems via coding the electrical OFDM symbols by adding an independent low power-level alignment signal, converting the encoded signal into the optical domain for transmission, and in the receiver converting the received optical signal to the electrical domain and digitally processing to detect the symbol alignment offset by utilising the independent low-power level alignment signal. The present invention is suitable for point-to-point and point-to-multi-point OOFDM networks and has the additional features of timeslot and frame alignment, compensation for receiver sampling clock offset and providing physical layer network security. The superimposed training signal is a DC offset whose value varies at symbol transitions.
摘要翻译：本发明公开了一种高速光正交频分复用（OOFDM）传输系统中符号同步的方法，通过加入独立的低功率电平对准信号，将编码信号转换为光域进行传输，并且在接收机中将接收到的光信号转换为电域，并通过利用独立的低功率电平对准信号进行数字处理以检测符号对准偏移。本发明适用于点对点和点到多点OOFDM网络，并且具有时隙和帧对齐的附加特征，对接收机采样时钟偏移的补偿和提供物理层网络安全性。叠加的训练信号是其值在符号转换时变化的直流偏移。

2. 发明申请

US20130108271A1 SYNCHRONOUS CLOCKING FOR OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING TRANSMISSION SYSTEMS 审中-公开
标题翻译：光学正交分频多路复用传输系统的同步时钟
公开(公告)号：US20130108271A1
公开(公告)日：2013-05-02
申请号：US13697643
申请日：2011-05-12
申请人： Jianming Tang , Roger Giddings
发明人： Jianming Tang , Roger Giddings
IPC分类号： H04J3/06 , H04B10/27
CPC分类号： H04J3/0638 , H04B10/27 , H04B10/548 , H04L7/0008 , H04L25/0228 , H04L25/03159 , H04L27/2657 , H04L2027/0055 , H04L2027/0087 , H04L2027/0089 , H04Q2011/0069 , H04Q2011/0079
摘要： The present invention discloses a method for achieving optimised synchronous clock distribution of point-to-multipoint optical orthogonal frequency division multiplexed networks such that bandwidth sharing in both the time and frequency domain is possible without interference between users. The invention details how all clocked components in the network are synchronised such that no clock offset compensation is required anywhere in the network. Also the present invention discloses a method for optimisation of the synchronous clocking method to maximise the system bit error rate (BER) performance, furthermore the present invention discloses a method for implementing multiband-OOFDM where ONUs can easily select any OOFDM band for data reception providing network configuration flexibility.
摘要翻译：本发明公开了一种实现点到多点光正交频分多路复用网络的优化同步时钟分配的方法，使得在时间和频域两者之间的带宽共享是可能的，而用户之间没有干扰。本发明详细描述了网络中的所有时钟组件如何同步，使得在网络中的任何地方都不需要时钟偏移补偿。此外，本发明公开了一种用于优化同步时钟方法以最大化系统误码率（BER）性能的方法，此外本发明公开了一种实现多频段OOFDM的方法，其中ONU可以容易地选择任何OOFDM频带用于数据接收提供网络配置灵活。

3. 发明授权

US07791464B1 Tractor-trailer rig deployable sign 失效
标题翻译：拖拉机拖车可部署标志
公开(公告)号：US07791464B1
公开(公告)日：2010-09-07
申请号：US11821030
申请日：2007-06-21
申请人： Jason Myron Giddings , Roger Giddings , Paula Marie Giddings
发明人： Jason Myron Giddings , Roger Giddings , Paula Marie Giddings
IPC分类号： B60Q1/52
CPC分类号： B60Q1/50 , B60Q1/305 , B60Q1/525
摘要： A method of providing a user controllable sign, on the trailer of a tractor-trailer rig. The tractor includes a cab and the trailer is electrically connected to the tractor by way of a jack that provides a set number of electrical connections between the tractor and the trailer. The method begins with the installation of a manual input device in the cab. This device creates a signal that can be overlaid on a jack input without disrupting the input and is electrically connected to a jack input. Also, a signal receiving unit is installed in the trailer, and is connected to a wire electrically connected to the jack input that receives the user signal from the manual input device. This unit is able to determine the presence of the signal from the manual input device. Also installed in the trailer, is a sign deployment controller that is at least in part responsive to the user signal receiving unit. Finally, a sign assembly, controlled by the sign deployment controller, is installed.
摘要翻译：一种在拖拉机 - 拖车钻机的拖车上提供用户可控标志的方法。拖拉机包括驾驶室，拖车通过在拖拉机和拖车之间提供设定数量的电连接的千斤顶电连接到拖拉机。该方法开始于在驾驶室中安装手动输入装置。该设备创建可以覆盖在插孔输入上的信号，而不会中断输入并电连接到插孔输入。此外，信号接收单元安装在拖车中，并且连接到电连接到从手动输入装置接收用户信号的插孔输入的导线。该单元能够确定来自手动输入设备的信号的存在。还安装在拖车中，是至少部分地响应于用户信号接收单元的标志部署控制器。最后，安装了由标志部署控制器控制的标志组件。

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