公开(公告)号：US20080166129A1

公开(公告)日：2008-07-10

申请号：US11940419

申请日：2007-11-15

Applicant: Yuanqiu Luo ,  Jianjun Yu ,  Junqiang Hu ,  Lei Xu ,  Philip Nan Ji ,  Ting Wang ,  Milorad Cvijetic

Inventor： Yuanqiu Luo ,  Jianjun Yu ,  Junqiang Hu ,  Lei Xu ,  Philip Nan Ji ,  Ting Wang ,  Milorad Cvijetic

IPC: H04J14/02

CPC classification number: H04J14/0226 ,  H04J14/0232 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/0298

Abstract: An optical network component, architecture and method for a wavelength division multiplexed passive optical network includes a band coupler configured to demultiplex first and second wavelength division multiplexed content transmitted from an optical line terminal into a first band signal and a second band signal. An arrayed wavelength grating is configured to receive the first band signal and to further demultiplex the first band signal into different wavelengths to provide a plurality of wavelength signals. An optical splitter is configured to split the second band signal into sub-signals and multiplex the sub-signals with each of the wavelength signals such that the first and second wavelength division multiplexed content is provided on a single wavelength to a user.

Abstract translation: 用于波分复用无源光网络的光网络部件，结构和方法包括：频带耦合器，被配置为将从光线路终端发送的第一和第二波分复用内容解复用为第一频带信号和第二频带信号。 阵列波长光栅被配置为接收第一频带信号并进一步将第一频带信号解复用为不同波长以提供多个波长信号。 光分路器被配置为将第二频带信号分割为子信号，并且将子信号与每个波长信号进行复用，使得第一和第二波分复用内容以单个波长提供给用户。

公开(公告)号：US20080131120A1

公开(公告)日：2008-06-05

申请号：US11867090

申请日：2007-10-04

Applicant: Jianjun Yu ,  Yuanqiu Luo ,  Ting Wang

Inventor： Jianjun Yu ,  Yuanqiu Luo ,  Ting Wang

IPC: H04J14/00 ,  H04B10/20 ,  H04J14/02

CPC classification number: H04J14/0282 ,  H04B10/2587 ,  H04B10/272

Abstract: An optical system and method includes a source-free optical network unit coupled to an optical fiber for receiving an original carrier signal with downstream data over the optical fiber. The optical network unit includes a modulator configured to remodulate the original carrier signal with upstream data to produce an upstream data signal for transmission back down the optical fiber in a direction opposite to a direction in which that original carrier signal was received.

Abstract translation: 光学系统和方法包括耦合到光纤的无源光网络单元，用于通过光纤接收具有下行数据的原始载波信号。 光网络单元包括调制器，其被配置为用上行数据对原始载波信号进行再调制，以产生上行数据信号，以便在与接收原始载波信号的方向相反的方向上向下传输光纤。

公开(公告)号：US20110069964A1

公开(公告)日：2011-03-24

申请号：US12562353

申请日：2009-09-18

Applicant: Jianjun Yu ,  Ting Wang

Inventor： Jianjun Yu ,  Ting Wang

IPC: H04B10/00

CPC classification number: H04B10/90 ,  H04B10/25759

Abstract: An optical wireless network includes an optical coupler for diverting received millimeter-wave signals comprised of an optical carrier and second order sidebands into multiple transmission paths; a downstream optical path being one of the multiple transmission paths and including an optical filter for filtering passing through the optical carrier with a single sideband, a converter for converting the optical carrier and single sideband to a corresponding electrical signal for amplification and broadcast transmission from an antenna; and an upstream path being one of the multiple transmission paths and having a filter for passing through the optical carrier only from the mm-wave signals and an intensity modulator driven by data received over the antenna to modulate the optical carrier for optical transmission to a receiving destination.

Abstract translation: 光无线网络包括用于将接收到的由光载波和二阶边带构成的毫米波信号转换成多个传输路径的光耦合器; 下行光路是多个传输路径之一，并且包括用于通过单个边带通过光载波的滤波器的滤光器，用于将光载波和单边带转换为相应的电信号的转换器，用于放大和广播传输 天线; 并且上游路径是多个传输路径中的一个，并且具有仅从mm波信号通过光载波的滤波器和由天线接收的数据驱动的强度调制器，以将用于光传输的光载波调制到接收 目的地。

公开(公告)号：US20100329696A1

公开(公告)日：2010-12-30

申请号：US12562260

申请日：2009-09-18

Applicant: Jianjun Yu ,  Ting Wang ,  Dayou Qian

Inventor： Jianjun Yu ,  Ting Wang ,  Dayou Qian

IPC: H04B10/04

CPC classification number: H04B10/5053 ,  H04B10/541

Abstract: An optical transmitter including a dividing optical coupler for dividing a lightwave onto optical paths; a first optical modulator in a first of the optical paths and driven by an I component of a first signal and a I component of a second signal for modulating the lightwave, a DC bias of the first optical modulator being at a quadrature point; a second optical modulator in a second of the optical paths and driven by a Q component of the first signal and a Q component of the second signal for modulating the lightwave, a DC bias of the second optical modulator being at the quadrature point; a phase shifter for generating a 90 degree phase shift in the Q components of the first and second signals that are modulated by the second optical coupler; and a combining optical coupler for combining the modulated lightwave from the first optical coupler and the phase shifted Q components of the first and second signals for generating a quadrature amplitude modulated signal.

Abstract translation: 一种光发射机，包括用于将光波分解成光路的分光光耦合器; 在第一光路中的由第一信号的I分量和用于调制光波的第二信号的I分量驱动的第一光调制器，第一光调制器的DC偏置处于正交点; 在第二光路中的第二光调制器，由第一信号的Q分量和第二信号的Q分量驱动，用于调制光波，第二光调制器的DC偏置处于正交点; 移相器，用于产生由第二光耦合器调制的第一和第二信号的Q分量中的90度相移; 以及组合光耦合器，用于组合来自第一光耦合器的调制光波和用于产生正交幅度调制信号的第一和第二信号的相移Q分量。

公开(公告)号：US20100247104A1

公开(公告)日：2010-09-30

申请号：US12698688

申请日：2010-02-02

Applicant: Jianjun Yu ,  Lei Xu ,  Philip Nan Ji ,  Ting Wang

Inventor： Jianjun Yu ,  Lei Xu ,  Philip Nan Ji ,  Ting Wang

IPC: H04B10/00

CPC classification number: H04B10/508 ,  H04B10/2575 ,  H04B10/505 ,  H04J14/02 ,  H04J14/0256

Abstract: A method of generating a dark-RZ pulse in an optical communications system with a dual-arm modulator by setting a direct current bias on the modulator to a specific value such that an output optical power from the modulator achieves a maximum value when the RF signals on the first and second arms of the modulator are off and maintaining the direct current bias at the specific value and applying RF signals to the first and second arms of the modulator and delaying one of the RF signals applied to one of the first and second arms relative to the other of the RF signals such that a dark-RZ pulse is generated with a duty cycle based on the delay. Another aspect of the invention provides a method for generating dense wave division multiplexing (DWDM) optical mm-waves in an optical transmission system by phase modulated DWDM optical signal and applying the phase modulated DWDM optical signal to an input port of an optical interleaver, the optical interleaver having a specified bandwidth to suppress the optical carriers and convert the DWDM optical signal to DWDM optical mm-waves; and amplifying the DWDM optical mm-waves and transmitting the DWDM optical mm-waves over single mode fiber (SMF).

Abstract translation: 一种在具有双臂调制器的光通信系统中通过将调制器上的直流偏置设置为特定值来产生暗RZ脉冲的方法，使得来自调制器的输出光功率在RF信号 在调制器的第一和第二臂处关闭并将直流偏压保持在特定值并且将RF信号施加到调制器的第一和第二臂并且延迟施加到第一和第二臂之一的RF信号之一 相对于RF信号中的另一个，使得以基于延迟的占空比产生暗RZ脉冲。 本发明的另一方面提供了一种通过相位调制DWDM光信号在光传输系统中产生密集波分复用（DWDM）光学毫米波的方法，并将相位调制的DWDM光信号应用于光交织器的输入端口， 具有指定带宽的光交错器以抑制光载波并将DWDM光信号转换为DWDM光学毫米波; 并放大DWDM光学毫米波，并通过单模光纤（SMF）传输DWDM光学毫米波。

公开(公告)号：US20090290877A1

公开(公告)日：2009-11-26

申请号：US12124402

申请日：2008-05-21

Applicant: Jianjun Yu ,  Ting Wang ,  Junqiang Hu

Inventor： Jianjun Yu ,  Ting Wang ,  Junqiang Hu

IPC: H04J14/02

CPC classification number: H04B10/0795 ,  H04L27/2602

Abstract: A method includes coupling an optical signal upconverted to a higher frequency and a digital signal having a bit rate similar to that of a subchannel of the upconverted optical signal, and obtaining, responsive to the coupling, a transmission signal with an optical carrier frequency carrying the digital signal and subchannels about the optical carrier frequency carrying the upconverted optical signal, the bit rate of the optical carrier being similar to that of the subchannels. In a preferred embodiment, the coupling includes electrically power coupling the upconverted optical signal with the digital signal, and modulating the coupled optical carrier frequency carrying the digital signal and subchannels about the optical carrier frequency carrying the upconverted optical signal.

Abstract translation: 一种方法包括将上变频到较高频率的光信号和具有与上变频光信号的子信道的比特率相似的比特率的数字信号耦合，并且响应于耦合获得具有携带 关于携带上变频光信号的光载波频率的数字信号和子信道，光载波的比特率与子信道的比特率相似。 在优选实施例中，耦合包括将上变频的光信号与数字信号进行电功率耦合，以及调制载有数字信号的耦合的光载波频率和携带上变频的光信号的光载波频率的子信道。

公开(公告)号：US20090016739A1

公开(公告)日：2009-01-15

申请号：US11830987

申请日：2007-07-31

Applicant: Jianjun Yu ,  Lei Xu ,  Philip Nan Ji ,  Ting Wang

Inventor： Jianjun Yu ,  Lei Xu ,  Philip Nan Ji ,  Ting Wang

IPC: H04B10/00

CPC classification number: H04B10/25073

Abstract: A passive optical equalizer and a predistortion technique are employed to reduce pattern effect in optical signals which result from narrow filtering.

Abstract translation: 采用无源光学均衡器和预失真技术来减少由窄滤波引起的光信号中的图案效应。

公开(公告)号：US10181909B2

公开(公告)日：2019-01-15

申请号：US13284561

申请日：2011-10-28

Applicant: Jianjun Yu

Inventor： Jianjun Yu

IPC: H04B10/10 ,  H04B10/02 ,  H04B10/90

Abstract: Embodiments of the present invention pertain to optical wireless architecture. More particularly, certain embodiments of the invention pertain to a novel method and apparatus to generate millimeter-wave signals with simple and/or low cost architecture. Simple millimeter-wave generation and dispersion-tolerant transmission is based on photonic mixing of two free-running lightwaves and self-mixing down-conversion. More particularly, heterodyne mixing of two free run lightwaves is achieved, wherein one lightwave is modulated by an external modulator driven by electrical data as one of the side-bands of a millimeter-wave signal. Optical to electrical conversion is performed and the millimeter-wave signal is broadcasted by a high-frequency antenna to a receiving side having a local oscillator with self-mixing architecture to down-convert the radio frequency to its baseband form.

公开(公告)号：US09027971B2

公开(公告)日：2015-05-12

申请号：US13981201

申请日：2012-01-20

Applicant: Darek Barczynski ,  Hongying Wang ,  Jianjun Yu ,  Dikran Ghorghorian

Inventor： Darek Barczynski ,  Hongying Wang ,  Jianjun Yu ,  Dikran Ghorghorian

IPC: E05C19/10 ,  E05B83/24 ,  B60J5/02

CPC classification number: E05B83/24 ,  B60J5/02 ,  E05B77/08 ,  E05B77/38 ,  Y10S292/14 ,  Y10T292/0949

Abstract: A hood latch having an extra-long fishmouth for enabling a vehicle hood to deflect downwardly upon impact, such as when hit by a pedestrian in a frontal crash. To prevent this deflection when the hood is slammed shut in ordinary use, a stop lever is pivotally mounted to the latch housing. The stop lever features first and second arms defining a slot therein. One arm has a proboscis thereon and is biased to align the slot with the fishmouth, with the proboscis jutting into the fishmouth. The proboscis receives an impact from the striker and rotates the stop lever to a blocking position wherein the non-proboscis arm intercepts the striker and prevents it from reaching the bottom end of the fishmouth. In the closed position the ratchet retains the striker at an intermediate depth in the fishmouth, enabling the striker to travel toward the bottom end thereof.

Abstract translation: 具有超长鱼嘴的发动机罩闩锁，用于使车辆罩在冲击时向下偏转，例如在正面碰撞中被行人撞击时。 为了防止在通常情况下关闭罩盖时的这种偏转，止动杆可枢转地安装在闩锁壳体上。 止动杆具有在其中限定槽的第一和第二臂。 一只手臂上有一只长鼻子，并且被偏置以使狭槽与鱼嘴对齐，而长鼻子突出到鱼嘴中。 长鼻子从冲击器接收冲击并将止动杆旋转到阻挡位置，其中非长臂臂拦截撞针并防止其到达鱼嘴的底端。 在关闭位置，棘轮将撞针保持在鱼嘴中的中间深度，使得撞针能够朝向其底端行进。

公开(公告)号：US20140199073A1

公开(公告)日：2014-07-17

申请号：US14238464

申请日：2012-08-10

Applicant: Jianjun Yu

Inventor： Jianjun Yu

IPC: H04J14/02 ,  H04L27/26

CPC classification number: H04J14/0221 ,  H04B10/556 ,  H04L5/0048 ,  H04L27/2601 ,  H04L27/2613

Abstract: Techniques for optical communications using optical orthogonal frequency division multiplexing (OFDM) include operating a signal transmitter to modulate laser light to produce modulated light that carries, in optical domain, OFDM subcarriers for carrying communication information, without a frequency guard band between the OFDM subcarriers, and pilot subcarriers for channel estimation at a signal receiver, each pilot subcarrier being free of communication information, and controlling optical power of the pilot subcarriers to vary with optical frequencies of the pilot subcarriers so that optical power of a pilot subcarrier at a high optical frequency is different from optical power of another pilot subcarrier at a low optical frequency.

Abstract translation: 使用光学正交频分复用（OFDM）的光通信技术包括操作信号发射机以调制激光以产生在光域中携带用于承载通信信息的OFDM子载波而不在OFDM子载波之间的频率保护带的调制光， 以及在信号接收机处进行信道估计的导频子载波，每个导频子载波没有通信信息，并且控制导频子载波的光功率随着导频子载波的光频率而变化，使得在高光频率下的导频子载波的光功率 与另一导频子载波的光功率不同，在低光频率。