公开(公告)号：US20090208216A1

公开(公告)日：2009-08-20

申请号：US11921764

申请日：2006-06-08

Applicant: Andrew Ellis ,  Mary McCarthy

Inventor： Andrew Ellis ,  Mary McCarthy

IPC: H04J14/02

CPC classification number: H04B10/2513 ,  H04B10/66 ,  H04B10/69

Abstract: A dispersion compensation system comprises a detector for receiving an optical input signal and a compensator for processing the detector outputs and re-constituting the original signal. The detector generates at least two signals which depend on the instantaneous amplitude and frequency of the distorted signal in different ways, and the compensator electrically processes the detector outputs. The detector comprises a wavelength selective device (such as an asymmetric MZI) and two or more opto electronic detectors providing the electrical signals. The detector subtracts outputs of the MZI to provide frequency information and sums MZI outputs to provide amplitude information. The detector may have a dedicated amplitude detector. The compensator may have a local oscillator which is modulated by amplitude and phase or frequency information of the detector output signals, and the local oscillator may operate in the range of 11 to 100 GHz.

Abstract translation: 色散补偿系统包括用于接收光输入信号的检测器和用于处理检测器输出并重新构成原始信号的补偿器。 检测器产生至少两个取决于失真信号的瞬时幅度和频率的信号，并且补偿器对检测器输出进行电处理。 检测器包括波长选择装置（例如非对称MZI）和提供电信号的两个或多个光电检测器。 检测器减去MZI的输出以提供频率信息，并将MZI输出求和以提供幅度信息。 检测器可以具有专用的幅度检测器。 补偿器可以具有由检测器输出信号的幅度和相位或频率信息调制的本地振荡器，并且本地振荡器可以在11至100GHz的范围内操作。

公开(公告)号：US20140126915A1

公开(公告)日：2014-05-08

申请号：US14127801

申请日：2012-07-02

Applicant: Lars Gruner-Nielsen ,  Sander Jansen ,  Poul Kristensen ,  Dirk Van Den Borne ,  Andrew Ellis

Inventor： Lars Gruner-Nielsen ,  Sander Jansen ,  Poul Kristensen ,  Dirk Van Den Borne ,  Andrew Ellis

IPC: H04B10/2581

CPC classification number: H04B10/2581 ,  H04J14/04

Abstract: Systems and methods for reducing modal group delay when transmitting a plurality of optical signals over a transmission line that supports a plurality of modes are disclosed. The modes are converted at a plurality of positions along the transmission line so the signals in the end have minimal group delay. The method comprises the steps of receiving N number of optical signals into a multimode fiber having at least N modes, transmitting each of N signals into a mode of the at least N modes of the multimode fiber, and converting each of the N modes into another of the N modes at N positions along the transmission line, such that the net modal group delay generated between the N signals along the transmission line is minimized.

Abstract translation: 公开了一种用于在支持多种模式的传输线上发送多个光信号时减少模式组延迟的系统和方法。 这些模式在沿着传输线的多个位置处被转换，使得最终的信号具有最小的组延迟。 该方法包括以下步骤：将N个光信号接收到具有至少N个模式的多模光纤中，将N个信号中的每一个发送到多模光纤的至少N个模式的模式，并将N个模式中的每一个转换为另一个 沿着传输线在N个位置处的N个模式，使得沿着传输线的N个信号之间产生的净模式组延迟最小化。

公开(公告)号：US08749313B2

公开(公告)日：2014-06-10

申请号：US13484405

申请日：2012-05-31

Applicant: Andrew Ellis

Inventor： Andrew Ellis

IPC: H03L7/06

CPC classification number: G04G3/027 ,  G04G3/04

Abstract: An electronic device has two oscillators, for example a first highly accurate crystal oscillator and a second less accurate low power oscillator. In a normal mode of operation, time is counted based on an output from the crystal oscillator, but in a low power mode of operation, time is counted based on an output from the less accurate oscillator. During the low power mode of operation, a calibration process is performed repeatedly. During a first calibration time period the second oscillator is calibrated against the first oscillator to obtain a first calibration result, and a recalibration is performed during a second calibration time period to obtain a second calibration result. A correction factor is determined from the first and second calibration results, and the correction factor is applied when subsequently counting time based on the output from the second oscillator.

Abstract translation: 电子设备具有两个振荡器，例如第一高精度晶体振荡器和第二较不精确的低功率振荡器。 在正常工作模式下，时间根据晶体振荡器的输出进行计数，但在低功耗工作模式下，时间是根据较不精确的振荡器的输出进行计数的。 在低功率运行模式下，重复执行校准过程。 在第一校准时间段期间，第二振荡器针对第一振荡器进行校准以获得第一校准结果，并且在第二校准时间段期间执行重新校准以获得第二校准结果。 根据第一和第二校准结果确定校正因子，并且当基于来自第二振荡器的输出的后续计数时间时应用校正因子。

公开(公告)号：US20130128341A1

公开(公告)日：2013-05-23

申请号：US13513572

申请日：2010-12-03

Applicant: Andrew Ellis ,  Stylianos Sygletos ,  Peter Andrekson ,  Antonio Bogris ,  David Richardson ,  Dimitris Syvridis

Inventor： Andrew Ellis ,  Stylianos Sygletos ,  Peter Andrekson ,  Antonio Bogris ,  David Richardson ,  Dimitris Syvridis

IPC: H01S3/10

CPC classification number: H01S3/10007 ,  H04B10/291 ,  H04B10/2914

Abstract: The invention provides a system for use in an optical communication network to reduce noise comprising means for tapping a low noise signal from said network and a phase sensitive amplifier (PSA) for conditioning said tapped signal by means for removing modulation of the tapped signal to allow for phase locking of the tapped signal. A laser source provides phase locked reference signals to generate at least one pump signal, wherein the at least one pump signal provides correct phase alignment for optimum PSA operation. The invention makes use of injection locked and/or phase locked laser sources in conjunction with low power input tap couplers, or post/mid amplification taps to provide the required phase locked reference signals without degrading the input loss or noise. The use of injection/phase locked local lasers suppresses the detrimental impact of the low tapped power or added noise in the generation of the required pump signals.

Abstract translation: 本发明提供了一种用于光通信网络中用于降低噪声的系统，包括用于从所述网络窃取低噪声信号的装置和用于通过去除所述抽头信号的调制来调节所述抽头信号的相位敏感放大器（PSA），以允许 用于锁定点火信号。 激光源提供锁相参考信号以产生至少一个泵浦信号，其中所述至少一个泵浦信号提供用于最佳PSA操作的正确相位对准。 本发明利用注入锁定和/或锁相激光源结合低功率输入抽头耦合器或后/中间放大抽头来提供所需的锁相参考信号而不降低输入损耗或噪声。 使用注入/锁相局部激光器可以抑制低抽头功率或附加噪声对生成所需泵浦信号的不利影响。

公开(公告)号：US20100135346A1

公开(公告)日：2010-06-03

申请号：US12574582

申请日：2009-10-06

Applicant: Frank Peters ,  Andrew Ellis

Inventor： Frank Peters ,  Andrew Ellis

IPC: H01S3/13

CPC classification number: H04J14/02 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/4006 ,  H01S5/4062 ,  H01S5/4068 ,  H01S5/4087 ,  H04J14/0221

Abstract: The present invention provides a system and method for creating a coherent optical comb comprising a plurality of lasers, each laser providing an optical output channel; means for combining each optical channel output; a modulator for modulating the combined optical channel outputs, to provide a modulated signal; means for feeding back said modulated signal to said plurality of lasers, such that each laser output channel is phase and/or frequency locked with respect to at least one other of said plurality of lasers. A discrete optical comb is obtained without the need for excessively high power laser outputs and only employs a single (optional) wavelength locker for all channels.

Abstract translation: 本发明提供了一种用于产生包括多个激光器的相干光梳的系统和方法，每个激光器提供光输出通道; 用于组合每个光信道输出的装置; 调制器，用于调制组合光信道输出，以提供调制信号; 用于将所述调制信号反馈到所述多个激光器的装置，使得每个激光输出通道相对于所述多个激光器中的至少另一个的相位和/或频率锁定。 获得离散光梳，而不需要过高的功率激光输出，并且仅对所有通道采用单个（可选）波长锁定器。

公开(公告)号：US20070283419A1

公开(公告)日：2007-12-06

申请号：US11841006

申请日：2007-08-20

Applicant: Michael Afergan ,  Andrew Ellis ,  Ravi Sundaram ,  Hariharan Rahul

Inventor： Michael Afergan ,  Andrew Ellis ,  Ravi Sundaram ,  Hariharan Rahul

IPC: H04L9/32

CPC classification number: H04L63/0209 ,  H04L29/06027 ,  H04L63/0227 ,  H04L63/0263 ,  H04L63/101 ,  H04L63/1441 ,  H04L65/4084 ,  H04L67/1002

Abstract: The present invention addresses the known vulnerabilities of Web site infrastructure by making an origin server substantially inaccessible via Internet Protocol traffic. In particular, according to a preferred embodiment, the origin server is “shielded” from the publicly-routable IP address space. Preferably, only given machines (acting as clients) can access the origin server, and then only under restricted, secure circumstances. In a preferred embodiment, these clients are the servers located in a “parent” region of a content delivery network (CDN) tiered distribution hierarchy. The invention implements an origin server shield that protects a site against security breaches and the high cost of Web site downtime by ensuring that the only traffic sent to an enterprise's origin infrastructure preferably originates from CDN servers. The inventive “shielding” technique protects a site's Web servers (as well as backend infrastructure, such as application servers, databases, and mail servers) from unauthorized intrusion—improving site uptime and in the process, customer loyalty.

Abstract translation: 本发明通过使源服务器通过因特网协议流量基本上不可访问来解决网站基础设施的已知漏洞。 特别地，根据优选实施例，原始服务器与可公共路由的IP地址空间“屏蔽”。 优选地，只有给定的机器（作为客户机）可以访问原始服务器，然后仅在有限的，安全的情况下。 在优选实施例中，这些客户端是位于内容分发网络（CDN）分层分布层级的“父”区域中的服务器。 本发明实现了源服务器屏蔽，其通过确保发送到企业的原始基础设施的唯一流量优选地源于CDN服务器来保护站点免受安全漏洞和网站停机的高成本。 创新的“屏蔽”技术保护站点的Web服务器（以及后端基础设施，如应用程序服务器，数据库和邮件服务器）免受未经授权的入侵改进站点正常运行时间和流程中的客户忠诚度。

公开(公告)号：US20200316425A1

公开(公告)日：2020-10-08

申请号：US16376807

申请日：2019-04-05

Applicant: Andrew Ellis

Inventor： Andrew Ellis

IPC: A63B21/072 ,  A63B23/16 ,  A63B21/045 ,  G08B15/00 ,  G08B21/02 ,  F41H13/00 ,  F41H9/10

Abstract: An exercise device having a bar with a first handle, a grip exerciser having a second handle connected to the bar via a resistance member proximate the first handle and movable between a first position and a second position by a hand of a user; and an auxiliary device connected to the bar selected from a light assembly, a sound generator, an electrified defensive unit, a pressurized defensive unit, and combinations of the same.

公开(公告)号：US08630386B2

公开(公告)日：2014-01-14

申请号：US13508572

申请日：2010-11-24

Applicant: Andrew Ellis

Inventor： Andrew Ellis

IPC: G06M3/00 ,  H03K21/00

CPC classification number: H03K5/00 ,  G06F1/14 ,  G06F1/30

Abstract: A battery powered device is able to maintain a clock value when the battery is removed for a short period. During a first time period, while the battery is in the device, clock pulses derived from a first oscillator are counted at a first rate in a first counter that represents the clock value. During a second time period following the first time period, while the battery is removed, the value of the first counter is maintained independent of any clock pulses derived from the first oscillator, clock pulses derived from a second low power oscillator are counted in a second counter. During a recovery time period following the second time period, clock pulses derived from the second oscillator are again counted in the second counter, while clock pulses derived from the first oscillator are counted in the first counter at a second rate higher than the first rate, the duration of the recovery time period being determined based on the number of pulses counted in the second counter during the second time period.

Abstract translation: 电池供电的设备能够在短时间内移除电池时保持时钟值。 在第一时间段期间，当电池处于设备中时，从表示时钟值的第一计数器中以第一速率对来自第一振荡器的时钟脉冲进行计数。 在第一时间段之后的第二时间段期间，当电池被移除时，第一计数器的值被保持为独立于从第一振荡器导出的任何时钟脉冲，从第二低功率振荡器导出的时钟脉冲被计数在第二时间段 计数器。 在第二时间段之后的恢复时间段期间，在第二计数器中再次计数从第二振荡器得到的时钟脉冲，而从第一振荡器导出的时钟脉冲以比第一速率高的第二速率在第一计数器中计数， 基于在第二时间段期间在第二计数器中计数的脉冲数来确定恢复时间段的持续时间。

公开(公告)号：US08488640B2

公开(公告)日：2013-07-16

申请号：US12574582

申请日：2009-10-06

Applicant: Frank Peters ,  Andrew Ellis

Inventor： Frank Peters ,  Andrew Ellis

IPC: H01S3/10 ,  H01S3/13

CPC classification number: H04J14/02 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/4006 ,  H01S5/4062 ,  H01S5/4068 ,  H01S5/4087 ,  H04J14/0221

Abstract: The present invention provides a system and method for creating a coherent optical comb comprising a plurality of lasers, each laser providing an optical output channel; means for combining each optical channel output; a modulator for modulating the combined optical channel outputs, to provide a modulated signal; means for feeding back said modulated signal to said plurality of lasers, such that each laser output channel is phase and/or frequency locked with respect to at least one other of said plurality of lasers. A discrete optical comb is obtained without the need for excessively high power laser outputs and only employs a single (optional) wavelength locker for all channels.

Abstract translation: 本发明提供了一种用于产生包括多个激光器的相干光梳的系统和方法，每个激光器提供光输出通道; 用于组合每个光信道输出的装置; 调制器，用于调制组合光信道输出，以提供调制信号; 用于将所述调制信号反馈到所述多个激光器的装置，使得每个激光输出通道相对于所述多个激光器中的至少另一个的相位和/或频率锁定。 获得离散光梳，而不需要过高的功率激光输出，并且仅对所有通道采用单个（可选）波长锁定器。

公开(公告)号：US20110150504A1

公开(公告)日：2011-06-23

申请号：US12959169

申请日：2010-12-02

Applicant: Andrew Ellis ,  Selwan K. Ibrahim ,  Stylianos Sygletos

Inventor： Andrew Ellis ,  Selwan K. Ibrahim ,  Stylianos Sygletos

IPC: H04B10/06

CPC classification number: H04B10/63 ,  H04B10/60 ,  H04B10/613

Abstract: One aspect of the invention is a homodyne coherent receiver, suitable for high speed phase shift keying (PSK), the receiver comprising a receiver for receiving an incoming signal having a carrier-less modulation format, a signal conditioning sub-system that generates a carrier component from the incoming signal, and an optical injection phase locked loop (OIPLL) that phase locks the generated carrier component of the incoming signal. Embodiments of the invention may enable DSP free detection of optical PSK signals, which may be required in next generation fiber transmission systems and in optical constellation analyzer systems. In addition, embodiments of the invention may provide improved receiver sensitivity performance comparing to prior art systems using direct detection schemes. Also, embodiments of the invention may be advantageous in terms of cost and energy efficiency.

Abstract translation: 本发明的一个方面是适用于高速相移键控（PSK）的零差相干接收机，该接收机包括用于接收具有无载波调制格式的输入信号的接收机，产生载波的信号调节子系统 来自输入信号的分量，以及相位锁定输入信号的所生成的载波分量的光注入锁相环（OIPLL）。 本发明的实施例可以实现对光PSK信号的DSP免费检测，这在下一代光纤传输系统和光学星座分析仪系统中可能是需要的。 此外，与使用直接检测方案的现有技术系统相比，本发明的实施例可以提供改进的接收机灵敏度性能。 此外，本发明的实施例在成本和能量效率方面可能是有利的。