公开(公告)号：US08182798B2

公开(公告)日：2012-05-22

申请号：US12598039

申请日：2008-04-22

Applicant: Prem Kumar Cheyalazhagan Paul

Inventor： Prem Kumar Cheyalazhagan Paul

IPC: A61Q5/04

CPC classification number: A61Q5/06 ,  A61K8/4953

Abstract: A method of hair styling or straightening comprising: i) a straightening active selected from adenine, guanine or derivatives thereof.

Abstract translation: 一种头发定型或矫直方法，包括：i）选自腺嘌呤，鸟嘌呤或其衍生物的矫直活性物质。

公开(公告)号：US20080101607A1

公开(公告)日：2008-05-01

申请号：US11404329

申请日：2006-04-13

Applicant: Chuang Liang ,  Gregory S. Kanter ,  Corndorf Eric ,  Prem Kumar

Inventor： Chuang Liang ,  Gregory S. Kanter ,  Corndorf Eric ,  Prem Kumar

IPC: H04L9/00 ,  G06F1/12 ,  G06F13/42 ,  H04L7/00 ,  H04L5/00

CPC classification number: H04L9/12 ,  H04L9/0838 ,  H04L9/0891

Abstract: A method of synchronizing the encryption/decryption functions of an AlphaEta physical-layer encryption or key generation system. The method includes the insertion of a header to indicate the start of encryption after clock-synchronization has been established. The method also allows for a side-channel to signal other useful information, such as a loss-of-syncrhonization signal from Bob or to synchronize a dynamic key change.

Abstract translation: 一种同步AlphaEta物理层加密或密钥生成系统的加密/解密功能的方法。 该方法包括在建立时钟同步之后插入报头以指示加密的开始。 该方法还允许侧信道发送其他有用的信息，例如来自Bob的失去同步信号或者使动态密钥更改同步。

公开(公告)号：US20060204248A1

公开(公告)日：2006-09-14

申请号：US11307868

申请日：2006-02-26

Applicant: Vladimir Grigoryan ,  Prem Kumar

Inventor： Vladimir Grigoryan ,  Prem Kumar

IPC: H04B10/00

CPC classification number: H04B10/299

Abstract: There is provided an optical regenerative amplifier for regenerative amplification of a binary phase shift-keying (BPSK) sequence of optical signals having a predetermined time slot between any adjacent signals. The optical regenerative amplifier comprises a first delay interferometer, wherein an input sequence of BPSK signals is split between two arms of an interferometer, a relative delay by the time slot between the adjacent signals is introduced in one of the arms of the interferometer to produce two mutually anti-symmetric trains of amplitude shift-keying (ASK) signals; a discriminative limiting amplifier to amplify the said two trains of anti-symmetric ASK signals, wherein the amplification for the spaces is smaller compared to the amplification for the marks and the amplification for the marks is limiting; and a second delay interferometer, wherein the said two trains of anti-symmetric ASK signals are recombined, delayed, and interfered to reproduce a regeneratively amplified BPSK sequence of signals and to separate noise from the signals.

公开(公告)号：US06897434B1

公开(公告)日：2005-05-24

申请号：US10376137

申请日：2003-02-28

Applicant: Prem Kumar ,  Marco Florentino ,  Paul L. Voss ,  Jay E. Sharping

Inventor： Prem Kumar ,  Marco Florentino ,  Paul L. Voss ,  Jay E. Sharping

IPC: G01N21/00 ,  G02B6/00 ,  G02F1/35 ,  G06N99/00 ,  H01L29/06 ,  H01S3/00 ,  H01S3/067 ,  H01S3/10 ,  H01S3/16 ,  H04B10/30 ,  H04L9/08

CPC classification number: G06N99/002 ,  B82Y10/00 ,  H01S3/005 ,  H01S3/0078 ,  H01S3/06754 ,  H01S3/1608 ,  H04B10/70 ,  H04L9/0852

Abstract: A source and/or method of generating quantum-correlated and/or entangled photon pairs using parametric fluorescence in a fiber Sagnac loop. The photon pairs are generated in the 1550 nm fiber-optic communication band and detected by a detection system including InGaAs/InP avalanche photodiodes operating in a gated Geiger mode. A generation rate>103 pairs/s is observed, a rate limited only by available detection electronics. The nonclassical nature of the photon correlations in the pairs is demonstrated. This source, given its spectral properties and robustness, is well suited for use in fiber-optic quantum communication and cryptography networks. The detection system also provides high rate of photon counting with negligible after pulsing and associated high quantum efficiency and also low dark count rate.

Abstract translation: 在光纤Sagnac循环中使用参数荧光产生量子相关和/或纠缠的光子对的源和/或方法。 光子对在1550nm光纤通信频带中产生，并由包括以门格盖格模式操作的InGaAs / InP雪崩光电二极管的检测系统进行检测。 观察到发电速率> 10 3对/秒，速率仅由可用的检测电子器件限制。 证明了成对中光子相关性的非经典性质。 鉴于其光谱性质和鲁棒性，该光源非常适合用于光纤量子通信和加密网络。 检测系统还提供高速率的光子计数，脉冲后可忽略不计，相关联的高量子效率和低暗计数率。