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1. 发明授权

US06266171B1 System and method for reduction of impact from unwanted signals in optical communications systems 失效
标题翻译：用于减少光通信系统中不需要的信号的影响的系统和方法
公开(公告)号：US06266171B1
公开(公告)日：2001-07-24
申请号：US09197390
申请日：1998-11-20
申请人： Narayan L. Gehlot
发明人： Narayan L. Gehlot
IPC分类号： H04B1004
CPC分类号： H04B10/5162 , H04B10/505 , H04B10/5053 , H04B10/58
摘要： A system and method have been described for operating on URZ and URZd coded representations of source data, as transmitted via an optical transmission system and received at a receiving location in an optical communications system, to substantially remove the effect of interference from unwanted optical and signal energy in the transmission path. After applying a subtraction operation and complementary mono-shot pulse generators to the resultant difference waveform, regenerated URZ and URZd coded representations of the source data are obtained which are substantially free of the effects of such unwanted optical and signal energy in the transmission path. The URZ and URZd coded data are then combined in an addition operation to produce a UNRZ coded representation of the source data.
摘要翻译：已经描述了一种用于在经由光传输系统传送并在光通信系统中的接收位置处接收的源数据的URZ和URZd编码表示上进行操作的系统和方法，以基本上消除来自不需要的光信号和信号的干扰的影响传输路径中的能量。在对所得的差分波形应用减法运算和补偿单脉冲脉冲发生器之后，获得源数据的再生URZ和URZd编码表示，其基本上不受传输路径中这种不希望的光信号能量的影响。然后将URZ和URZd编码数据在加法运算中组合以产生源数据的UNRZ编码表示。

2. 发明授权

US06822568B2 Space area network 有权
标题翻译：空间网络
公开(公告)号：US06822568B2
公开(公告)日：2004-11-23
申请号：US10055051
申请日：2002-01-23
申请人： Narayan L. Gehlot , Victor B. Lawrence
发明人： Narayan L. Gehlot , Victor B. Lawrence
IPC分类号： G08B1314
CPC分类号： G08B13/1427
摘要： A system and method for automatically maintaining the security of an area. In one embodiment of the invention, several space area network elements may be placed near or in a circular pattern around an area to be kept space, such as a school. The space area network elements are devices including sensors to sense the presence of an unwanted object such as a gun. The space area network elements may also include a wireless communication unit so that when the presence of an unwanted object or gun is sensed, a third party entity such as a the police may be alerted. The space area network elements also include inter-element communication units that allow the space area network elements to share information and form a space area network. Additionally, the space area network elements may include a positioning system unit that obtains data related to the position of the space area network. By way of the positioning system unit, position information may also be communicated to the third party entity.
摘要翻译：一种用于自动维护区域安全性的系统和方法。在本发明的一个实施例中，几个空间网络元件可以放置在围绕要保持空间的区域（例如学校）附近或圆形图案中。空间网络元件是包括用于感测诸如枪的不需要的对象的存在的传感器的设备。空间网络元件还可以包括无线通信单元，使得当感测到不想要的对象或枪的存在时，可以警告诸如警察的第三方实体。空间网络元件还包括允许空间区域网络元件共享信息并形成空间区域网络的元件间通信单元。此外，空间区域网络元件可以包括获取与空间区域网络的位置相关的数据的定位系统单元。通过定位系统单元，位置信息也可以被传送给第三方实体。

3. 发明授权

US6163277A System and method for speed limit enforcement 失效
标题翻译：用于限速执行的系统和方法
公开(公告)号：US6163277A
公开(公告)日：2000-12-19
申请号：US177839
申请日：1998-10-22
申请人： Narayan L. Gehlot
发明人： Narayan L. Gehlot
IPC分类号： G08G1/052 , G08G1/0967 , G08G1/09
CPC分类号： G08G1/096725 , G08G1/052 , G08G1/09675 , G08G1/096783
摘要： A system for enforcing highway speed limits comprising an antenna and one or more sensors positioned on a vehicle, the antenna capable of receiving data indicative of a speed limit for a roadway, the one or more sensors capable of gathering data indicative of a driving pattern of the vehicle, and a processing unit in communication with the antenna and the one or more sensors, the processing unit receiving the speed limit data from the antenna and the driving pattern data from the sensors, analyzing the speed limit data and the driving pattern data to asses whether a predetermined action should be initiated and initiating a predetermined action in response to the assessment.
摘要翻译：一种用于执行公路速度限制的系统，包括天线和位于车辆上的一个或多个传感器，所述天线能够接收指示道路的速度限制的数据，所述一个或多个传感器能够收集指示驾驶模式的数据车辆，以及与天线和一个或多个传感器通信的处理单元，处理单元从天线接收速度限制数据和来自传感器的驱动模式数据，将速度限制数据和驾驶模式数据分析为评估是否应启动预定的动作并响应评估而启动预定的动作。

4. 发明授权

US6060989A System and method for preventing automobile accidents 有权
标题翻译：防止汽车事故的制度和方法
公开(公告)号：US6060989A
公开(公告)日：2000-05-09
申请号：US175397
申请日：1998-10-19
申请人： Narayan L. Gehlot
发明人： Narayan L. Gehlot
IPC分类号： B60K28/06 , G08B21/06 , G08B23/00
CPC分类号： B60K28/066 , G08B21/06
摘要： A system for preventing or reducing vehicle accidents comprising one or more sensors positioned on a vehicle sensing a condition or conditions indicative of a drivers ability to effectively control the vehicle; a processing unit in communication with the sensors, the processing unit receiving data from the sensors, analyzing the data to determine an appropriate response and initiating the response.
摘要翻译：一种用于预防或减少车辆事故的系统，包括位于车辆上的一个或多个传感器，其感测指示驾驶员有效控制车辆的能力的状况或条件; 与传感器通信的处理单元，处理单元从传感器接收数据，分析数据以确定适当的响应并启动响应。

5. 发明授权

US07307615B2 Method and apparatus for voice-controlled graphical user interface pointing device 有权
标题翻译：语音控制图形用户界面指向装置的方法和装置
公开(公告)号：US07307615B2
公开(公告)日：2007-12-11
申请号：US10638183
申请日：2003-08-08
申请人： Narayan L. Gehlot , Victor B. Lawrence
发明人： Narayan L. Gehlot , Victor B. Lawrence
IPC分类号： G09G5/00 , G09G5/08
CPC分类号： G06F3/011 , G06F3/033 , G06F3/038 , G06F3/167
摘要： A pointing device is provided for use in computing devices comprising a printed circuit board, a tracking device adapted to generate a tracking signal in response to a user vocal input and relay the tracking signal to the printed circuit board, and a selection device adapted to generate a selection signal in response to a user manipulation and relay the selection signal to the printed circuit board.
摘要翻译：提供了一种用于包括印刷电路板的计算设备的指示设备，适于响应于用户声音输入产生跟踪信号并将跟踪信号中继到印刷电路板的跟踪设备，以及适于产生响应于用户操纵的选择信号并将选择信号中继到印刷电路板。

6. 发明授权

US07197310B2 Methods and systems for controlling handoffs in a wireless communication system 有权
标题翻译：用于控制无线通信系统中的切换的方法和系统
公开(公告)号：US07197310B2
公开(公告)日：2007-03-27
申请号：US10628231
申请日：2003-07-29
申请人： Narayan L. Gehlot , Victor B. Lawrence
发明人： Narayan L. Gehlot , Victor B. Lawrence
IPC分类号： H04Q7/20 , H04Q7/00
CPC分类号： H04W36/32
摘要： Techniques for controlling handoffs in a wireless communication system include receiving a location vector from a mobile unit, and determining whether to perform a handoff of the mobile unit based on the received vector. The vector may also include time information related to the time at which the vector was transmitted. The vector may be obtained from a GPS satellite signal or one or more terrestrial stations.
摘要翻译：用于控制无线通信系统中的切换的技术包括从移动单元接收位置矢量，以及基于所接收的矢量来确定是否执行移动单元的切换。矢量也可以包括与矢量被发送的时间有关的时间信息。该矢量可以从GPS卫星信号或一个或多个地面站获得。

7. 发明授权

US06657776B2 Pump source including polarization scrambling in Raman amplified optical WDM systems 失效
标题翻译：泵浦源包括拉曼放大光学WDM系统中的偏振加扰
公开(公告)号：US06657776B2
公开(公告)日：2003-12-02
申请号：US09989884
申请日：2001-11-21
申请人： Narayan L. Gehlot
发明人： Narayan L. Gehlot
IPC分类号： H01S300
CPC分类号： H04B10/2916 , H01S3/094003 , H01S3/094073 , H01S3/302
摘要： A pump source for a fiber Raman amplifier is formed to include a polarization scrambler to reduce the effects of polarization dependent gain, particularly as used in a multiple input wavelength WDM optical system. The source utilizes a polarization scrambler coupled to the output of a pump laser, the scrambler controlled by a sinusoidal input signal to impart a randomness to the polarization of the pump signal. Thus, a random state of polarization of the pump signal, with respect to the various input signal wavelengths, improves the overall gain experienced by the system.
摘要翻译：光纤拉曼放大器的泵浦源形成为包括偏振加扰器以减少偏振相关增益的影响，特别是在多输入波长WDM光学系统中使用。源使用耦合到泵浦激光器的输出的偏振扰频器，扰频器由正弦输入信号控制，以赋予泵浦信号的极化的随机性。因此，相对于各种输入信号波长，泵浦信号的随机的极化状态提高了系统所经历的总体增益。

8. 发明授权

US06542271B1 Apparatus and method for reducing optical impairments in optical communications systems and networks 有权
标题翻译：用于减少光通信系统和网络中的光学损伤的装置和方法
公开(公告)号：US06542271B1
公开(公告)日：2003-04-01
申请号：US09197073
申请日：1998-11-20
申请人： Narayan L. Gehlot
发明人： Narayan L. Gehlot
IPC分类号： H04B1000
CPC分类号： H04B10/5162 , H04B10/2507 , H04B10/2572 , H04B10/505 , H04B10/5053 , H04J14/06
摘要： The present invention is a transmitter device and related system and method for use in high speed optical transmission systems. In one exemplary embodiment of the present invention, light from a laser diode output is split into two branches of orthogonal polarization (Eox, and Eoy) of substantially equal power. Polarization selectors coupled thereto are operable to select a specific polarization to be output to a corresponding external optical polarization modulator. A first polarization modulator, receives light from the polarization selector, for example, Eox, and modulates URZ data from a URZ coder thereon. A second polarization modulator receives light from the second polarization selector, for example, Eoy, and modulates delayed data (URZd) representative of the URZ data from the URZ coder thereon. The URZ data and the delayed URZd data may be combined at the transmitter, fiber channel or receiver for transmission over a single optical medium, for example, a fiber optic cable. The net delay at the receiver in the delayed URZd data is preferably T/2, where T is a pulse period of URZ data. The first and second sets of data originating from the first and second branches of the transmitter, respectively, are uniquely added together at the transmitter, fiber or receiver in order to realize UNRZ data. With polarization dispersive optical fiber cable between the transmitter and receiver the Eox and Eoy polarization signals encounter different propagation delays and arrive at the receiver separately. By changing the optical polarization delay in one or the other or both arms of the receiver, the two sets of signals are added together to realize UNRZ data.
摘要翻译：本发明是用于高速光传输系统的发射机装置及相关系统及方法。在本发明的一个示例性实施例中，来自激光二极管输出的光被分成具有基本相等功率的正交偏振的两个分支（Eox和Eoy）。耦合到其上的极化选择器可操作以选择要输出到相应的外部光偏振调制器的特定偏振。第一偏振调制器接收来自偏振选择器的光，例如Eox，并且从URZ编码器调制URZ数据。第二偏振调制器接收来自第二偏振选择器的光，例如Eoy，并且从URZ编码器调制代表URZ数据的延迟数据（URZd）。 URZ数据和延迟的URZd数据可以在发射机，光纤信道或接收机上组合，以通过单个光学介质，例如光纤电缆进行传输。延迟URZd数据中接收机的净延迟优选为T / 2，其中T是URZ数据的脉冲周期。分别从发射机的第一和第二分支发出的第一组和第二组数据在发射机，光纤或接收机上分别唯一地相加，以实现UNRZ数据。在发射机和接收机之间使用偏振光纤光缆，Eox和Eoy极化信号遇到不同的传播延迟并分别到达接收机。通过改变接收机的一个或两个或两个或两个臂中的光学偏振延迟，将两组信号相加在一起以实现UNRZ数据。

9. 发明授权

US06462850B1 Apparatus and method to overcome dispersion limitations in high speed communications systems and networks 有权
标题翻译：克服高速通信系统和网络中的分散限制的装置和方法
公开(公告)号：US06462850B1
公开(公告)日：2002-10-08
申请号：US09197222
申请日：1998-11-20
申请人： Narayan L. Gehlot
发明人： Narayan L. Gehlot
IPC分类号： H04B1000
CPC分类号： H04B10/58 , H04B10/25137 , H04B10/505 , H04B10/5053
摘要： The present invention provides a transmission device and related system for use in high speed optical transmission systems. By changing the optical/electrical delay in one or more arms of a receiver, dispersion effects can be compensated for without using costly, high dispersion optical fiber and optical amplifiers or other like techniques to control dispersion.
摘要翻译：本发明提供一种用于高速光传输系统的传输装置及相关系统。通过改变接收机的一个或多个臂中的光/电延迟，可以在不使用昂贵的高色散光纤和光放大器或其他类似技术来控制色散的情况下补偿色散效应。

10. 发明授权

US06377377B1 Apparatus and method for reducing phase modulated gain fluctuations in optical communications systems and networks 有权
标题翻译：用于减少光通信系统和网络中的相位调制增益波动的装置和方法
公开(公告)号：US06377377B1
公开(公告)日：2002-04-23
申请号：US09197403
申请日：1998-11-20
申请人： Narayan L. Gehlot
发明人： Narayan L. Gehlot
IPC分类号： H04B1000
CPC分类号： H04B10/58 , H04B10/503 , H04B10/5053
摘要： The present invention is a transmitter device and related system and method for use in high speed optical transmission systems. In one exemplary embodiment of the present invention, light from a laser diode power output is split into two branches of substantially equal power. At least a first optical modulator, for example a phase modulator, receives light from the first branch and modulates URZ data from a URZ coder thereon. The modulator, which may also be second optical modulator receives light from the laser diode on the second branch and modulates delayed data (URZd) representative of the URZ data from the URZ coder thereon. The net delay at the receiver in the delayed URZd data is preferably T/2, where T is a pulse period of URZ data. The first and second sets of data originating from the first and second branches of the transmitter, respectively, are uniquely added together at the transmitter, fiber or receiver in order to realize UNRZ data. With dispersive optical fiber cable between the transmitter and receiver these signals encounter propagation delays and arrive at the receiver separately. An advantage of the present invention is that bit pattern dependent gain fluctuations in individual optical amplifiers across multiple dense wavelengths are eliminated because of the transmission of constant envelopes.
摘要翻译：本发明是用于高速光传输系统的发射机装置及相关系统及方法。在本发明的一个示例性实施例中，来自激光二极管功率输出的光被分成基本相等功率的两个分支。至少第一光调制器（例如相位调制器）接收来自第一分支的光，并在其上对来自URZ编码器的URZ数据进行调制。也可以是第二光调制器的调制器从第二分支上的激光二极管接收光，并且从URZ编码器调制表示URZ数据的延迟数据（URZd）。延迟URZd数据中接收机的净延迟优选为T / 2，其中T是URZ数据的脉冲周期。分别从发射机的第一和第二分支发出的第一组和第二组数据在发射机，光纤或接收机上分别唯一地相加，以实现UNRZ数据。在发射机和接收机之间使用分散光纤电缆，这些信号遇到传播延迟并分别到达接收机。本发明的优点在于，由于传输恒定的信封，消除了多个密集波长处的各个光放大器中的位模式相关的增益波动。

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