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：US07259523B2

公开(公告)日：2007-08-21

申请号：US10543952

申请日：2004-01-14

Applicant: Paul Robert Veldman ,  Bernhard Christiaan Van Dijk ,  Jianjun Yu

Inventor： Paul Robert Veldman ,  Bernhard Christiaan Van Dijk ,  Jianjun Yu

IPC: G05F1/00

CPC classification number: H05B41/2828 ,  Y10S315/05 ,  Y10S315/07

Abstract: In a bride circuit comprising a lamp choke that might partially saturate during the ignition of the lamp, at least one of the switches is switched off when the amount of charge displaced through it in forward direction equals a predetermined value. Despite the partial paturation of the lamp choke the amplitude of the ignition voltage is thereby effectively controlled.

Abstract translation: 在包括在灯的点火期间可能部分饱和的灯扼流圈的新电路中，当正向移动的电荷量等于预定值时，至少一个开关被切断。 尽管灯扼流圈的部分校正，因此有效地控制了点火电压的幅度。

公开(公告)号：US09825707B2

公开(公告)日：2017-11-21

申请号：US14377685

申请日：2013-02-08

Applicant: ZTE (USA) Inc. ,  Jianjun Yu ,  Jianqiang Li ,  Hung-chang Chien ,  Zhensheng Jia

Inventor： Jianjun Yu ,  Jianqiang Li ,  Hung-Chang Chien ,  Zhensheng Jia

IPC: H04B10/2507 ,  H04B1/50 ,  H04B10/548 ,  H04L27/26 ,  H04L27/20 ,  H04L25/03 ,  H04J14/02 ,  H04B10/50

CPC classification number: H04B10/2507 ,  H04B10/50 ,  H04B10/548 ,  H04J14/0298 ,  H04L25/03178 ,  H04L27/2096 ,  H04L27/2601 ,  H04L27/2627 ,  H04L27/2697 ,  H04L2025/03414

Abstract: Aspects of the present invention include apparatus and methods for transmitting and receiving signals in communication systems. A multicarrier generator generates a multicarrier signal. An optical demultiplexer separates the multicarrier signal into separate multicarrier signals. At least one QPSK modulator modulates signals from the separate multicarrier signals. An optical multiplexer combines the QPSK modulated signals into a multiplexed signal. The multiplexed signal is then transmitted.

公开(公告)号：US09312979B2

公开(公告)日：2016-04-12

申请号：US14238464

申请日：2012-08-10

Applicant: Jianjun Yu

Inventor： Jianjun Yu

IPC: H04B10/556 ,  H04J14/02 ,  H04L5/00 ,  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。

公开(公告)号：US09294199B2

公开(公告)日：2016-03-22

申请号：US14343725

申请日：2012-09-13

Applicant: Hung-Chang Chien ,  Jianjun Yu ,  Ze Dong

Inventor： Hung-Chang Chien ,  Jianjun Yu ,  Ze Dong

IPC: H04B10/04 ,  H04B10/516 ,  H04J14/06 ,  H04B10/508 ,  H04J14/00 ,  H04B10/524

CPC classification number: H04B10/5162 ,  H04B10/508 ,  H04B10/524 ,  H04J14/002 ,  H04J14/06

Abstract: An optical transmitter comprises: first and second sets of optical in-phase and quadrature modulators; an integrable tunable laser assembly; a first polarization beam splitter that is configured to divide the continuous-waveform optical signal into a x-polarized tributary and a y-polarized tributary, each of the x-polarized tributary and the y-polarized tributary is modulated by one of the first and second sets of optical in-phase and quadrature modulators in accordance with the two respective input signals; a second polarization beam splitter that is configured to combine the modulated x-polarized tributary and the modulated y-polarized tributary into one optical signal; and an optical modulator that is configured to modulate the combined optical signal using a driving voltage, wherein the driving voltage has a bias point that is reduced by a predefined offset from a predefined reference voltage level.

Abstract translation: 光发射机包括：第一和第二组光同步和正交调制器; 可集成可调激光器组件; 第一偏振分束器，被配置为将连续波形光信号划分成x偏振支路和y偏振支路，x偏振支路和y偏振支路中的每一个由第一和/ 根据两个相应的输入信号的第二组光同步和正交调制器; 第二偏振分束器，被配置为将调制的x偏振支路和调制的y偏振支路组合成一个光信号; 以及光学调制器，其被配置为使用驱动电压来调制所述组合的光信号，其中所述驱动电压具有被减小预定义的偏离预定参考电压电平的偏置点。

公开(公告)号：US20140105615A1

公开(公告)日：2014-04-17

申请号：US14113012

申请日：2012-04-25

Applicant: Hung-Chang Chien ,  Jianjun Yu

Inventor： Hung-Chang Chien ,  Jianjun Yu

IPC: H04B10/548

CPC classification number: H04B10/548

Abstract: A method and apparatus for generating sub-carriers is disclosed. Coherent optical sub-carriers with sub-carrier spacing are generated for carrying an orthogonal frequency division multiplexed (OFDM) signal. Multiple peaks are generated by cascading multiple phase modulators driven by different radio frequency sources.

Abstract translation: 公开了一种用于生成副载波的方法和装置。 产生具有副载波间隔的相干光子载波，用于承载正交频分复用（OFDM）信号。 通过级联由不同射频源驱动的多个相位调制器产生多个峰值。

公开(公告)号：US20140015258A1

公开(公告)日：2014-01-16

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: E05B65/12

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：US20120321324A1

公开(公告)日：2012-12-20

申请号：US13495368

申请日：2012-06-13

Applicant: Jianjun Yu ,  Ming-Fang Huang

Inventor： Jianjun Yu ,  Ming-Fang Huang

IPC: H04B10/04

CPC classification number: H04B10/541

Abstract: The present method is for generating a 4-level optical signal and it includes providing a continuous wave CW optical source; modulating the CW optical source with a first intensity modulator driven by a binary electrical signal a n Gbits/s to generate an optical signal; employing a second intensity modulator as a pulse carving modulator that is driven by an RF signal at n GHz thereby generating a 4 level optical signal for subsequent detection by a receiver.

Abstract translation: 本发明的方法是产生4级光信号，包括提供连续波CW光源; 用由二进制电信号驱动的第一强度调制器nGbits / s调制CW光源以产生光信号; 采用第二强度调制器作为由n GHz的RF信号驱动的脉冲雕刻调制器，从而生成4级光信号，用于接收机的后续检测。

公开(公告)号：US20120230688A1

公开(公告)日：2012-09-13

申请号：US13411191

申请日：2012-03-02

Applicant: Jianjun Yu

Inventor： Jianjun Yu

IPC: H04J14/06 ,  H04J14/00

CPC classification number: H04J14/0298 ,  H04B10/506 ,  H04J14/0212 ,  H04J14/06 ,  H04L5/0008 ,  H04L27/0004 ,  H04L27/2096 ,  H04L27/2627 ,  H04L27/2697

Abstract: A method and system for generating multi-subcarriers is disclosed. Re-circulating frequency shifters—based on the frequency shifting in two cascading phase modulators—are used to generate 112 subcarriers with stable architecture since there is no direct current bias in phase modulators.

Abstract translation: 公开了一种用于产生多子载波的方法和系统。 基于两个级联相位调制器中的频移的再循环移频器被用于产生具有稳定架构的112个子载波，因为在相位调制器中没有直流偏置。

公开(公告)号：US20120106973A1

公开(公告)日：2012-05-03

申请号：US13284561

申请日：2011-10-28

Applicant: Jianjun Yu

Inventor： Jianjun Yu

IPC: H04B10/10 ,  H04B10/02

CPC classification number: H04B10/90 ,  H04B2210/006

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.

Abstract translation: 本发明的实施例涉及光无线架构。 更具体地，本发明的某些实施例涉及以简单和/或低成本架构产生毫米波信号的新颖方法和装置。 简单的毫米波生成和容差传输是基于两个自由运行的光波的光子混合和自混合下变频。 更具体地，实现了两个自由运行的光波的外差混合，其中一个光波由作为毫米波信号的边带之一的电数据驱动的外部调制器调制。 执行光电转换，并且将毫米波信号由高频天线广播到具有自混合架构的本地振荡器的接收侧，以将射频下变频到其基带形式。