公开(公告)号：US20080214554A1

公开(公告)日：2008-09-04

申请号：US11878611

申请日：2007-07-25

Applicant: Arthur M. Brown ,  Naresh Chand

Inventor： Arthur M. Brown ,  Naresh Chand

IPC: A61K31/496 ,  A61P9/06

CPC classification number: A61K31/495

Abstract: Disclosed are methods of preventing or treating cardiac arrhythmia comprising administering to a mammal in need thereof, such as a human, an effective amount of vanoxerine (GBR 12909) or a pharmaceutically acceptable salt, derivative or metabolite thereof.

Abstract translation: 公开了预防或治疗心律失常的方法，其包括向有需要的哺乳动物（例如人）施用有效量的vanoxerine（GBR 12909）或其药学上可接受的盐，衍生物或代谢物。

公开(公告)号：US07373089B2

公开(公告)日：2008-05-13

申请号：US10215460

申请日：2002-08-09

Applicant: Jianjun Yu ,  Keisuke Kojima ,  Naresh Chand

Inventor： Jianjun Yu ,  Keisuke Kojima ,  Naresh Chand

IPC: H04B10/04 ,  H04B10/12

CPC classification number: H04B10/25137

Abstract: Methods and apparatus for providing improving optical signal transmission results over standard mode fiber using a combination of negative chirp, low extinction ratio, and self-phase modulation transmission techniques in combination are described. The use of pre-transmission signal distortion in combinations with one or more of the other transmission techniques is also described. Pre-transmission signal distortion may be introduced by controlling a modulator with a large symmetric AC signal which causes the modulator to operation in a non-linear region or, alternatively, by using a relatively small non-symmetric AC signal to drive the modulator. Use of the small non-symmetric signal has the advantage of reduced power requirements. The pre-transmission distortion acts to counter some of the distortion introduced by the transmission of the signal over an optic fiber.

Abstract translation: 描述了结合使用负啁啾，低消光比和自相位调制传输技术的组合的标准模式光纤提供改进的光信号传输结果的方法和装置。 还描述了与一种或多种其它传输技术组合使用预发射信号失真。 可以通过控制具有大对称AC信号的调制器来引入预发送信号失真，其使得调制器在非线性区域中操作，或者通过使用相对较小的非对称AC信号来驱动调制器。 使用小的非对称信号具有减少功率要求的优点。 预发射失真用于抵消通过光纤传输信号引入的一些失真。

公开(公告)号：US20100069403A1

公开(公告)日：2010-03-18

申请号：US12591180

申请日：2009-11-12

Applicant: Arthur M. Brown ,  Naresh Chand

Inventor： Arthur M. Brown ,  Naresh Chand

IPC: A61K31/4965 ,  A61P9/06

CPC classification number: A61K31/495

Abstract: Disclosed are methods of preventing or treating cardiac arrhythmia comprising administering to a mammal in need thereof, such as a human, an effective amount of vanoxerine (GBR 12909) or a pharmaceutically acceptable salt, derivative or metabolite thereof.

Abstract translation: 公开了预防或治疗心律失常的方法，其包括向有需要的哺乳动物（例如人）施用有效量的vanoxerine（GBR 12909）或其药学上可接受的盐，衍生物或代谢物。

公开(公告)号：US06763193B1

公开(公告)日：2004-07-13

申请号：US09450823

申请日：1999-11-29

Applicant: Naresh Chand ,  Thomas Henry Daugherty ,  Wouterus Muys ,  Yong-Kwan Park ,  Venkataraman Swaminathan

Inventor： Naresh Chand ,  Thomas Henry Daugherty ,  Wouterus Muys ,  Yong-Kwan Park ,  Venkataraman Swaminathan

IPC: H04J1400

CPC classification number: H04N7/22 ,  H04B10/272 ,  H04B10/503 ,  H04B10/506 ,  H04B10/5161 ,  H04B10/5561 ,  H04J14/0226 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282 ,  H04J14/0298

Abstract: This invention is a new communication system in which multichannel broadcast digital services are distributed to each user with the broadcast services signal riding in the passband above a digital baseband signal. The system can deliver more than 1 Gbps additional bandwidth to each subscriber. The passband bandwidth will accommodate growth in downstream services including video on demand, higher speed web downloads including improved streaming audio and video, HDTV, interactive video, and personalized video. The invention requires only a single fiber path and a single optical receiver for each user or group of users. A single fiber, single optical receiver system is much less expensive than two systems, one transmitting baseband and the other passband. A single receiver is greatly cost beneficial to achieving economical fiber to the home.

Abstract translation: 本发明是一种新的通信系统，其中多通道广播数字业务被分配给每个用户，广播业务信号在数字基带信号上方通过通带。 该系统可以为每个用户提供超过1 Gbps的附加带宽。 通带带宽将适应下游业务的增长，包括视频点播，更高速度的网络下载，包括改进的流式音频和视频，HDTV，交互式视频和个性化视频。 本发明对于每个用户或用户组仅需要单个光纤路径和单个光接收机。 单光纤单光接收机系统比两个系统便宜得多，一个发射基带和另一个通带。 单个接收器对于实现经济的光纤到家是非常有益的。

公开(公告)号：US06459521B1

公开(公告)日：2002-10-01

申请号：US09828094

申请日：2001-04-06

Applicant: Laurens Bakker ,  Naresh Chand ,  Doutje Tjitske van Veen

Inventor： Laurens Bakker ,  Naresh Chand ,  Doutje Tjitske van Veen

IPC: G02F101

CPC classification number: H04J14/0298 ,  H01S5/0265 ,  H01S5/12 ,  H04B10/503 ,  H04B10/505

Abstract: An optical transmitter for digitally modulated RF sub-carriers comprising an electroabsorption modulator integrated distributed feedback laser for transmitting the digitally modulated RF sub-carriers in the sub-octave frequency range. The negative bias is optimized for maximum carrier signal to noise ratio (CNR) which occurs when the composite triple beat (CTB) non-linear distortion is minimum that allows higher modulation index without causing any in-band distortion. A higher CNR increases the receiver sensitivity and thus more users can be served from a single transmitter or the transmitting signal can be modulated with higher order of digital modulation.

Abstract translation: 一种用于数字调制的RF子载波的光发射机，包括用于在亚倍频程频率范围内传输数字调制的RF子载波的电吸收调制器集成分布式反馈激光器。 针对最大载波信噪比（CNR），针对最大载波信噪比（CNR）进行了优化，当复合三节拍（CTB）非线性失真最小时，可以实现更高的调制度，而不引起任何带内失真。 较高的CNR增加了接收机灵敏度，从而可以从单个发射机提供更多的用户，或者可以用更高阶的数字调制来调制发射信号。

公开(公告)号：US5773318A

公开(公告)日：1998-06-30

申请号：US723660

申请日：1996-10-30

Applicant: Naresh Chand ,  Robert Alan Hamm

Inventor： Naresh Chand ,  Robert Alan Hamm

IPC: H01L21/304

CPC classification number: H01L21/3043 ,  Y10T225/12

Abstract: The specification describes techniques for cleaving crystal bodies, e.g. semiconductor laser bars, using thermostatic cleaving tools. Use of such tools allows the cleaving process to occur in an ultra high vacuum chamber without the use of mechanical devices activated from the exterior of the chamber. Cleaving occurs automatically and controllably by locally heating the cleaving tools, thereby deflecting the thermostatic element against the laser bar and causing fracture.

Abstract translation: 本说明书描述了用于切割晶体的技术，例如。 半导体激光棒，采用恒温切割工具。 使用这种工具可以使切割过程发生在超高真空室中，而不需要使用从室外激活的机械装置。 通过局部加热切割工具自动发生切割，从而使恒温元件抵靠激光棒偏转并导致断裂。

公开(公告)号：US5665637A

公开(公告)日：1997-09-09

申请号：US560148

申请日：1995-11-17

Applicant: Naresh Chand

Inventor： Naresh Chand

IPC: H01S3/10 ,  H01S3/06 ,  H01S5/00 ,  H01S5/02 ,  H01S5/028 ,  H01S5/16 ,  H01L21/20

CPC classification number: H01S5/0281 ,  H01S5/0202 ,  H01S5/028 ,  H01S5/0282 ,  H01S5/164

Abstract: Provision of a novel passivation layer can result in improved reliability of semiconductor lasers having a laser cavity defined by 2 laser facets. In a preferred embodiment, the passivation layer is a zinc selenide layer (e.g., 5 nm), formed on an essentially contamination-free laser facet. More generally, the passivation layer comprises at least one of Mg, Zn, Cd and Hg, and at least one of S, Se and Te. Typically, the facets are formed by cleaving in vacuum, immediately followed by in-situ deposition of the novel passivation layer material on the facets.

Abstract translation: 提供新颖的钝化层可以导致具有由2个激光刻面限定的激光腔的半导体激光器的可靠性提高。 在优选实施例中，钝化层是形成在基本上无污染的激光刻面上的硒化锌层（例如5nm）。 更一般地，钝化层包括Mg，Zn，Cd和Hg中的至少一种以及S，Se和Te中的至少一种。 通常，小面是通过在真空中切割形成的，紧接着是新颖的钝化层材料在面上的原位沉积。

公开(公告)号：US5629233A

公开(公告)日：1997-05-13

申请号：US627562

申请日：1996-04-04

Applicant: Naresh Chand ,  Sung-Nee G. Chu ,  Alexei V. Syrbu

Inventor： Naresh Chand ,  Sung-Nee G. Chu ,  Alexei V. Syrbu

IPC: H01S5/00 ,  H01S5/02 ,  H01L21/784

CPC classification number: H01S5/0201 ,  H01S5/0202

Abstract: The disclosed novel method of making III/V semiconductor lasers involves cleaving of the wafer along predetermined cleavage planes. A cleavage plane is defined by means of aligned non-continuous depressions. The depressions are spaced from the laser contact regions, and typically are V-grooves produced by photolithography and anisotropic etching. A further surface feature, typically a precisely positioned scribe mark, facilitates cleavage initiation. When carried out in vacuum the novel method can provide high quality, accurately positioned cleavage surfaces, and consequently can facilitate increased yield of high power lasers.

Abstract translation: 所公开的制造III / V半导体激光器的新颖方法包括沿着预定的解理面切割晶片。 通过对准的非连续凹陷来限定解理平面。 凹陷与激光接触区域间隔开，通常是通过光刻和各向异性蚀刻产生的V形槽。 进一步的表面特征，通常是精确定位的划线标记，有利于裂解起始。 当在真空中进行时，新方法可以提供高质量，精确定位的切割面，因此可以促进大功率激光器的产量增加。

公开(公告)号：US08797870B2

公开(公告)日：2014-08-05

申请号：US11327532

申请日：2006-01-05

Applicant: Shiva Shankar J ,  Ottalingam Satyanarayan ,  Srinivas Muktevi ,  Naresh Chand

Inventor： Shiva Shankar J ,  Ottalingam Satyanarayan ,  Srinivas Muktevi ,  Naresh Chand

IPC: H04L12/26 ,  H04B7/216

CPC classification number: H04L65/80 ,  H04L43/0829 ,  H04L43/0852 ,  H04L43/0858 ,  H04L43/087 ,  H04L43/106 ,  H04L43/12

Abstract: A method, system and apparatus are provided for measuring the quality of voice (QOV) in a communication network. A time-stamped voice data packet is received. The time stamped on the voice data packet indicates the time at which the voice data packet arrives at intermediate devices. In an embodiment of the invention, the intermediate devices at each hop stamp the time. Thereafter, the voice data packets are analyzed to measure the quality of voice in the communication network.

Abstract translation: 提供了一种用于测量通信网络中的语音质量（QOV）的方法，系统和装置。 接收时间戳的语音数据分组。 语音数据分组上的时间戳表示语音数据分组到达中间设备的时间。 在本发明的一个实施例中，每一跳的中间装置标记时间。 此后，分析语音数据分组以测量通信网络中的语音质量。

公开(公告)号：US08417125B2

公开(公告)日：2013-04-09

申请号：US12789679

申请日：2010-05-28

Applicant: Naresh Chand ,  Bruce Eteson ,  Daniel Taskalos

Inventor： Naresh Chand ,  Bruce Eteson ,  Daniel Taskalos

IPC: H04B10/00

CPC classification number: H04B10/1123

Abstract: Methods, systems and other embodiments associated with a laser communication system using a single wavelength are presented. A first data is modulated onto an RF carrier to produce a modulated RF carrier. A laser is intensity modulated using with the modulated RF carrier. The intensity modulated laser beam is transmitted from an interrogator to a modulating retro-reflector (MRR) terminal. A portion of the laser beam is received at a receiver at the MRR terminal. Another portion of the laser is modulated at the MRR terminal with a second data to produce a re-modulated laser beam. The re-modulated laser beam is reflected back to the interrogator.

Abstract translation: 提出了与使用单个波长的激光通信系统相关联的方法，系统和其他实施例。 将第一数据调制到RF载波上以产生调制的RF载波。 使用调制的RF载波对激光进行强度调制。 强度调制激光束从询问器传输到调制后向反射器（MRR）终端。 在MRR端子处的接收器处接收激光束的一部分。 激光器的另一部分在MRR端子处用第二数据进行调制以产生再调制的激光束。 再调制的激光束被反射回询问器。