公开(公告)号：US20070286607A1

公开(公告)日：2007-12-13

申请号：US11844940

申请日：2007-08-24

Applicant: Aref Chowdhury ,  Rene'-Jean Essiambre ,  Lisa Wickham

Inventor： Aref Chowdhury ,  Rene'-Jean Essiambre ,  Lisa Wickham

IPC: H04B10/18

CPC classification number: H04B10/25253

Abstract: A process optically transports digital data over an all-optical long-haul communication path. The process includes transporting digital optical data signals at a selected bit rate and a selected wavelength over a sequence of transmission spans. The sequence includes 70 percent or more of the spans of the long-haul all-optical communication path. Each span of the sequence has a primary local maximum optical power point for the wavelength on a transmission fiber and nearest to an input of the span. The transporting causes a cumulative dispersion of each signal to evolve such that residual dispersions per span are positive over some of the spans and are negative over other of the spans. At the primary local maximum power points, magnitudes of cumulative dispersions of the signals in pico seconds per nanometer remain at less than 32,000 times the inverse of the bit rate in giga bits per second.

Abstract translation: 一种过程通过全光学长途通信路径光学传输数字数据。 该过程包括以选定的比特率传送数字光学数据信号，并在一系列传输跨度上传输选定的波长。 该序列包括长距离全光通信路径的70％或更多的跨度。 序列的每个跨度具有用于传输光纤上的波长并且最接近跨度的输入的主要局部最大光功率点。 运输导致每个信号的累积色散发展使得每跨度的每个跨度的残余分散是正的，并且在其它跨度上是负的。 在主要局部最大功率点，信号的累积分散幅度以微微秒/纳米为单位，保持在比特率（千比特每秒）的倒数的32000倍以下。

公开(公告)号：US07084563B2

公开(公告)日：2006-08-01

申请号：US11180350

申请日：2005-07-13

Applicant: Aref Chowdhury ,  Hock Min Ng ,  Richart Elliott Slusher

Inventor： Aref Chowdhury ,  Hock Min Ng ,  Richart Elliott Slusher

IPC: H01J1/62 ,  H01L33/00

CPC classification number: B82Y20/00 ,  B81B1/00 ,  G02B6/1225 ,  G02B2006/12035 ,  H01J1/304 ,  H01J3/022 ,  H01J9/025 ,  H01L21/0254 ,  H01L21/02639 ,  H01L21/30612

Abstract: An apparatus includes a crystalline substrate, a layer of a first group III-nitride located on a planar surface of the substrate, and a layer of a second group III-nitride located over the layer of the first group III-nitride. The first and second group III-nitrides have different alloy compositions. The layer of second group III-nitride may have a pattern of columnar holes or trenches therein. The apparatus may include a plurality of pyramidal field-emitters that include the second group III-nitride.

Abstract translation: 一种装置包括晶体衬底，位于衬底的平面表面上的第一III族氮化物层和位于第一III族氮化物层上的第二III族氮化物层。 第一和第二III族氮化物具有不同的合金组成。 第二III族氮化物的层可以具有柱状孔或其中的沟槽的图案。 该装置可以包括多个金字塔形场致发射体，其包括第二III族氮化物。

公开(公告)号：US20050244159A1

公开(公告)日：2005-11-03

申请号：US10835753

申请日：2004-04-30

Applicant: Aref Chowdhury ,  Christopher Doerr ,  Gregory Raybon

Inventor： Aref Chowdhury ,  Christopher Doerr ,  Gregory Raybon

IPC: G02B6/34 ,  H04J14/06

CPC classification number: H04J14/02 ,  H04J14/06

Abstract: An apparatus includes an optical wavelength-converter and a polarization splitter. The polarization splitter is configured to receive input and pump light, to direct a first polarization component of the received input and pump light to a first optical path, and to direct a second polarization component of the received input and pump light to a separate second optical path. The optical wavelength-converter has first and second optical ports. The first optical port is at an end of the first optical path. The second port is at an end of the second optical path. The wavelength-converter outputs wavelength-converted light from one of the ports in response to receiving the input and pump light at the other of the ports. The two optical paths may include polarization-maintaining optical waveguides. The polarization splitter and optical paths may be configured to transmit substantially the same pump light intensity to the two optical ports.

Abstract translation: 一种装置包括光波长转换器和偏振分离器。 偏振分离器被配置为接收输入和泵浦光，以将接收到的输入和泵浦光的第一偏振分量引导到第一光路，并且将接收的输入和泵浦光的第二偏振分量引导到单独的第二光学 路径。 光波长转换器具有第一和第二光端口。 第一光口位于第一光路的一端。 第二端口处于第二光路的一端。 响应于接收另一个端口处的输入和泵浦光，波长转换器从一个端口输出波长转换的光。 两个光路可以包括偏振保持光波导。 偏振分离器和光路可以被配置为将基本相同的泵浦光强度传输到两个光学端口。

公开(公告)号：US20130344875A1

公开(公告)日：2013-12-26

申请号：US13531019

申请日：2012-06-22

Applicant: Aref Chowdhury

Inventor： Aref Chowdhury

IPC: H04W52/02 ,  H04W40/00 ,  H04M11/00

CPC classification number: H04L12/5692 ,  H04W40/00 ,  H04W52/02 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/168

Abstract: An energy-management system for controlling energy consumption in a relatively small network of energy-consuming/generating objects connected to an electricity grid and located, e.g., at a user premises. The energy consumption is managed through a programmable gateway device that can be accessed remotely, e.g., through a smart-meter network of the utility company or through a short-range wireless link. A user interface for the remote access can be implemented, e.g., using a smart phone or a tablet. In operation, the gateway device advantageously provides the user and/or the utility company with numerous opportunities for realizing cost and/or energy savings through appropriate and timely response to various actionable conditions, such as price-of-electricity fluctuations, configuration-modification requests, failure notices, service requirements, hazard signals, etc.

Abstract translation: 一种能量管理系统，用于控制连接到电力网并位于用户房屋处的能量消耗/产生物体的相对小的网络中的能量消耗。 能量消耗通过可编程网关设备进行管理，该设备可以远程访问，例如通过公用事业公司的智能电表网络或通过短距离无线链路进行访问。 可以实现用于远程访问的用户界面，例如使用智能电话或平板电脑。 在操作中，网关设备有利地向用户和/或公用事业公司提供许多机会，通过适当和及时地响应诸如电价波动，配置修改请求等各种可操作的条件来实现成本和/或节能 ，故障通知，服务要求，危险信号等

公开(公告)号：US08615150B2

公开(公告)日：2013-12-24

申请号：US13590834

申请日：2012-08-21

Applicant: Aref Chowdhury ,  Arthur Penn Ramirez ,  Theo Max Siegrist

Inventor： Aref Chowdhury ,  Arthur Penn Ramirez ,  Theo Max Siegrist

IPC: G02F1/295 ,  H01P3/00

CPC classification number: H01Q3/26 ,  G02F1/0009 ,  G02F2202/30 ,  G02F2202/32 ,  H01P3/081 ,  H01Q3/44

Abstract: A method of processing an electromagnetic signal, comprising includes configuring a waveguide that includes a multiferroic medium to propagate the electromagnetic signal. A mechanical strain or a control electrical or magnetic field is applied to the waveguide such that the applying changes a permittivity or a permeability of the medium. The electromagnetic signal is propagated through said waveguide while performing the applying.

Abstract translation: 一种处理电磁信号的方法，包括配置包括多铁介质的波导以传播电磁信号。 将机械应变或控制电场或磁场施加到波导，使得施加改变介质的介电常数或磁导率。 电磁信号在执行施加时通过所述波导传播。

公开(公告)号：US20120314987A1

公开(公告)日：2012-12-13

申请号：US13590834

申请日：2012-08-21

Applicant: Aref Chowdhury ,  Arthur Penn Ramirez ,  Theo Max Siegrist

Inventor： Aref Chowdhury ,  Arthur Penn Ramirez ,  Theo Max Siegrist

IPC: G02F1/295 ,  H01P3/00

CPC classification number: H01Q3/26 ,  G02F1/0009 ,  G02F2202/30 ,  G02F2202/32 ,  H01P3/081 ,  H01Q3/44

Abstract: A method of processing an electromagnetic signal, comprising includes configuring a waveguide that includes a multiferroic medium to propagate the electromagnetic signal. A mechanical strain or a control electrical or magnetic field is applied to the waveguide such that the applying changes a permittivity or a permeability of the medium. The electromagnetic signal is propagated through said waveguide while performing the applying.

Abstract translation: 一种处理电磁信号的方法，包括配置包括多铁介质的波导以传播电磁信号。 将机械应变或控制电场或磁场施加到波导，使得施加改变介质的介电常数或磁导率。 电磁信号在执行施加时通过所述波导传播。

公开(公告)号：US07795596B2

公开(公告)日：2010-09-14

申请号：US12006529

申请日：2008-01-03

Applicant: Aref Chowdhury

Inventor： Aref Chowdhury

IPC: G01J1/42

CPC classification number: G01S13/04 ,  G01S7/41

Abstract: System including electromagnetic radiation source and electromagnetic radiation detector. Electromagnetic radiation source is configured to excite, with electromagnetic radiation having first source frequency, object configured for suppressing responsive emission of electromagnetic radiation having first source frequency. Electromagnetic radiation detector is configured to receive responsive emission of electromagnetic radiation from object. System is configured to detect presence of object. Method includes exciting, with electromagnetic radiation having first source frequency, object configured for suppressing responsive emission of electromagnetic radiation having first source frequency. Method includes receiving responsive emission of electromagnetic radiation from object and utilizing responsive emission to detect presence of object.

Abstract translation: 系统包括电磁辐射源和电磁辐射检测器。 电磁辐射源被配置为通过具有第一源频率的电磁辐射来激发被配置用于抑制具有第一源频率的电磁辐射的响应发射的物体。 电磁辐射检测器被配置为接收来自物体的电磁辐射的响应发射。 系统被配置为检测对象的存在。 方法包括激励，具有第一源频率的电磁辐射，被配置用于抑制具有第一源频率的电磁辐射的响应发射的物体。 方法包括从物体接收电磁辐射的响应发射并利用响应发射来检测物体的存在。

公开(公告)号：US20100054490A1

公开(公告)日：2010-03-04

申请号：US12201853

申请日：2008-08-29

Applicant: Aref Chowdhury

Inventor： Aref Chowdhury

IPC: G10K11/16

CPC classification number: G10K11/178 ,  G10K2210/106 ,  G10K2210/128 ,  G10K2210/3221

Abstract: System including signal processor in communication with sound detector and with sound-emitting device. Sound detector and sound-emitting device are in audio communication with occupant compartment. Signal processor is configured for receiving input signal from sound detector being indicative of background audio noise in occupant compartment, and for causing sound-emitting device to emit output sound that partially cancels background audio noise in manner responsive to received input signal. Another system, including array of sound detectors and array of sound-emitting devices. Method includes providing signal processor in communication with sound detector and sound-emitting device, where sound detector and sound-emitting device are in communication with occupant compartment. Further in method, signal processor is caused to receive input signal from sound detector being indicative of background audio noise in occupant compartment. Additionally in method, signal processor is induced to cause sound-emitting device to emit output sound that partially cancels background audio noise in manner responsive to received input signal.

Abstract translation: 系统包括与声音检测器和声发射设备通信的信号处理器。 声音探测器和发声装置与乘员隔间进行音频通信。 信号处理器被配置为从声音检测器接收指示乘员舱内的背景音频噪声的输入信号，并且用于使声发射设备以响应于接收的输入信号的方式发出部分地抵消背景音频噪声的输出声音。 另一个系统，包括声音检测器阵列和声发射设备阵列。 方法包括提供与声音检测器和发声装置通信的信号处理器，其中声音检测器和发声装置与乘员隔间通信。 另外，在方法中，使得信号处理器从声音检测器接收指示乘员舱内的背景音频噪声的输入信号。 另外，在方法中，感应信号处理器使声发射装置以响应于接收到的输入信号的方式发出部分地抵消背景音频噪声的输出声音。

公开(公告)号：US20100053763A1

公开(公告)日：2010-03-04

申请号：US12229866

申请日：2008-08-27

Applicant: Aref Chowdhury ,  Philip Moss Platzman

Inventor： Aref Chowdhury ,  Philip Moss Platzman

IPC: G02B1/00

CPC classification number: B82Y20/00 ,  G02B1/002 ,  G02B6/1225 ,  G02B2006/12147 ,  G02F1/353 ,  G02F2202/30 ,  H01Q15/0026 ,  H01Q15/0086

Abstract: An apparatus includes a medium that is a metamaterial over a frequency range. The medium includes a stack of layers or slabs. A mechanical, electrical, or magnetic property of the layers or slabs of the stack varies monotonically between neighboring ones of the layers or slabs.

Abstract translation: 一种装置包括在频率范围上是超材料的介质。 介质包括一叠层或板。 堆叠的层或板的机械，电或或磁性质在相邻的层或板之间单调地变化。

公开(公告)号：US20090173886A1

公开(公告)日：2009-07-09

申请号：US12006529

申请日：2008-01-03

Applicant: Aref Chowdhury

Inventor： Aref Chowdhury

IPC: G01J1/42

CPC classification number: G01S13/04 ,  G01S7/41

Abstract: System including electromagnetic radiation source and electromagnetic radiation detector. Electromagnetic radiation source is configured to excite, with electromagnetic radiation having first source frequency, object configured for suppressing responsive emission of electromagnetic radiation having first source frequency. Electromagnetic radiation detector is configured to receive responsive emission of electromagnetic radiation from object. System is configured to detect presence of object. Method includes exciting, with electromagnetic radiation having first source frequency, object configured for suppressing responsive emission of electromagnetic radiation having first source frequency. Method includes receiving responsive emission of electromagnetic radiation from object and utilizing responsive emission to detect presence of object.

Abstract translation: 系统包括电磁辐射源和电磁辐射探测器。 电磁辐射源被配置为通过具有第一源频率的电磁辐射来激发被配置用于抑制具有第一源频率的电磁辐射的响应发射的物体。 电磁辐射检测器被配置为接收来自物体的电磁辐射的响应发射。 系统被配置为检测对象的存在。 方法包括激励，具有第一源频率的电磁辐射，被配置用于抑制具有第一源频率的电磁辐射的响应发射的物体。 方法包括从物体接收电磁辐射的响应发射并利用响应发射来检测物体的存在。