公开(公告)号：US10181909B2

公开(公告)日：2019-01-15

申请号：US13284561

申请日：2011-10-28

申请人： Jianjun Yu

发明人： Jianjun Yu

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

摘要： 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

申请人： Darek Barczynski ,  Hongying Wang ,  Jianjun Yu ,  Dikran Ghorghorian

发明人： Darek Barczynski ,  Hongying Wang ,  Jianjun Yu ,  Dikran Ghorghorian

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

CPC分类号： E05B83/24 ,  B60J5/02 ,  E05B77/08 ,  E05B77/38 ,  Y10S292/14 ,  Y10T292/0949

摘要： 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.

摘要翻译： 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

申请人： Jianjun Yu

发明人： Jianjun Yu

IPC分类号： H04J14/02 ,  H04L27/26

CPC分类号： H04J14/0221 ,  H04B10/556 ,  H04L5/0048 ,  H04L27/2601 ,  H04L27/2613

摘要： 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.

摘要翻译： 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：US08380083B2

公开(公告)日：2013-02-19

申请号：US12546250

申请日：2009-08-24

申请人： Jianjun Yu

发明人： Jianjun Yu

IPC分类号： H04B10/00

CPC分类号： H04B10/90 ,  H04B10/2575

摘要： An optical system for providing all-optical up-conversion of a baseband signal including an all-optical up-converter responsive to baseband signals to provide corresponding dual sideband signals about a suppressed optical carrier, said dual sideband signals each having the same polarization direction, being phase locked, having the same optical power and having a fixed frequency spacing; and an optical filter for filtering the carrier signals and providing wavelength division multiplexed signals without optical carriers. In a preferred embodiment, the all-optical up-converter includes an intensity modulator for generating two pump lightwaves that are carrier suppressed in response to the intensity modulator receiving a laser light source and being driven by an RF signal, wherein the intensity modulator is DC biased at a null point, an optical combiner for combining the baseband signal and the two pump lightwaves, a nonlinear medium for four wave mixing the baseband signal and two pump lightwaves to generate the baseband signal and corresponding dual sideband signals, and an optical interleaver for removing the baseband signal and two pump lightwaves to provide said sideband signals about the suppressed optical carrier.

摘要翻译： 一种光学系统，用于响应于基带信号提供包括全光上变频器的基带信号的全光上变换，以提供关于被抑制的光载波的对应的双边带信号，所述双边带信号各自具有相同的偏振方向， 具有相同的光功率并具有固定的频率间隔; 以及用于对载波信号进行滤波并提供无光载波的波分复用信号的滤光器。 在一个优选实施例中，全光上变换器包括一个强度调制器，用于产生两个泵浦光波，该两个波浪波响应于接收激光光源并由RF信号驱动的强度调制器被抑制，其中强度调制器是DC 偏置在零点，用于组合基带信号和两个泵浦光波的光组合器，用于四波混频基带信号和两个泵浦光波的非线性介质，以产生基带信号和相应的双边带信号，以及用于 去除基带信号和两个泵浦光波，以提供关于被抑制的光载波的所述边带信号。

公开(公告)号：US20120176886A1

公开(公告)日：2012-07-12

申请号：US13339476

申请日：2011-12-29

申请人： Jianjun Yu

发明人： Jianjun Yu

IPC分类号： H04J11/00

CPC分类号： H04L27/2614

摘要： A combined Hadamard and companding transform technique is incorporated into orthogonal frequency division multiplexed signals to reduce the peak-to-average ratio of signals. A Hadamard transform is applied to the signals to generate a first transformed signal of subsymbols. An Inverse Fast Fourier Transform is performed on the subsymbols to generate a second transformed signal of the subsymbols. The second transformed signal is then companded, making them ready for transmission as optical signals.

摘要翻译： 合并的Hadamard和压扩变换技术被并入到正交频分复用信号中，以降低信号的峰均比。 将Hadamard变换应用于信号以产生子符号的第一变换信号。 对子符号进行逆快速傅立叶变换，以生成子符号的第二个变换信号。 然后将第二变换信号压缩，使其准备好作为光信号传输。

公开(公告)号：US08200086B2

公开(公告)日：2012-06-12

申请号：US12044417

申请日：2008-03-07

申请人： Yuanqiu Luo ,  Si Yin ,  Jianjun Yu ,  Lei Zong

发明人： Yuanqiu Luo ,  Si Yin ,  Jianjun Yu ,  Lei Zong

IPC分类号： H04J14/00

CPC分类号： H04J14/0282 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0298 ,  H04L67/1097 ,  H04Q11/0067 ,  H04Q2011/0069

摘要： A storage area network extension, network and method include a storage terminal coupled to a remote node. The remote node is connected to a passive optical network (PON) for transferring data signals in the PON and storage signals to/from the storage terminal by employing subcarrier channels in the PON to enable concurrent bidirectional transfer of the data and the storage signals. A storage area network is coupled to the storage terminal and configured to store and retrieve the storage signals for transfer over the PON.

摘要翻译： 存储区域网络扩展，网络和方法包括耦合到远程节点的存储终端。 远程节点连接到无源光网络（PON），用于通过在PON中采用子载波信道来传送PON中的数据信号和存储信号到存储终端，以实现数据和存储信号的并发双向传输。 存储区域网络耦合到存储终端并且被配置为存储和检索用于在PON上传送的存储信号。

公开(公告)号：US08131156B2

公开(公告)日：2012-03-06

申请号：US12235013

申请日：2008-09-22

申请人： Jianjun Yu

发明人： Jianjun Yu

IPC分类号： H04B10/00

CPC分类号： H04J14/0226 ,  H04B10/2587 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J2014/0253 ,  H04L27/2601

摘要： An optical system and method includes a source-free optical network unit coupled to an optical fiber for receiving a centralized lightwave carrier signal with downstream data over the optical fiber. The optical network unit includes a coupler configured to split the original carrier signal into a first path and a second path. The first path includes an optical filter configured to reduce fading effects of the carrier signal. The second path includes a modulator configured to remodulate the centralized lightwave carrier signal with upstream data to produce an upstream data signal for upstream transmission.

摘要翻译： 光学系统和方法包括耦合到光纤的无源光网络单元，用于接收具有光纤上的下行数据的集中式光波载波信号。 光网络单元包括被配置为将原始载波信号分割为第一路径和第二路径的耦合器。 第一路径包括被配置为减少载波信号的衰落影响的滤光器。 第二路径包括配置成用上行数据重新调制集中式光波载波信号以产生用于上行传输的上行数据信号的调制器。

公开(公告)号：US08064774B2

公开(公告)日：2011-11-22

申请号：US12117347

申请日：2008-05-08

申请人： Jianjun Yu ,  Dayou Qian ,  Lei Xu ,  Ting Wang

发明人： Jianjun Yu ,  Dayou Qian ,  Lei Xu ,  Ting Wang

IPC分类号： H04B10/00

CPC分类号： H04B10/25758

摘要： A method includes generating an optical millimeter wave signal for modulation of a first data signal, and deriving from the generated optical millimeter wave signal a subsequent light source for modulation of a second data signal. More specifically the generating includes modulating a light wave to a multiple of a frequency of an oscillating signal. Alternatively, the generating includes modulating a data signal mixed with an oscillating signal to a multiple of a frequency of the oscillating signal. The deriving includes modulating a frequency component filtered from a data modulation of the generated optical millimeter wave signal.

摘要翻译： 一种方法包括产生用于调制第一数据信号的光学毫米波信号，以及从所生成的光学毫米波信号中导出用于调制第二数据信号的后续光源。 更具体地，生成包括将光波调制到振荡信号的频率的倍数。 或者，生成包括将与振荡信号混合的数据信号调制为振荡信号的频率的倍数。 导出包括调制从产生的光学毫米波信号的数据调制滤波的频率分量。

公开(公告)号：US20110081151A1

公开(公告)日：2011-04-07

申请号：US12894508

申请日：2010-09-30

申请人： Jianjun Yu ,  Ming-Fang Huang ,  Ting Wang

发明人： Jianjun Yu ,  Ming-Fang Huang ,  Ting Wang

IPC分类号： H04J14/02

CPC分类号： H04J14/02 ,  H04B10/532 ,  H04J14/0298 ,  H04J14/06

摘要： A high speed orthogonal dense wavelength division multiplexing DWDM signal generator includes a multi-peak continuous wave signal generator responsive to a light source, an optical filter for separating multi-peaks of lightwaves from the generator; and a polarization multiplexing stage responsive to the multi-peaks of lightwaves from the optical filter for providing a polarization multiplexing optical signal. The generator includes a cascaded phase modulator and intensity modulator driven by a repetitive frequency (I) to generate multiple spectral peaks, each peak being modulated by an optical modulator driven by a respective baud rate (f baud/s) electrical signal.

摘要翻译： 高速正交密集波分复用DWDM信号发生器包括响应于光源的多峰连续波信号发生器，用于从发生器分离光波的多峰的滤光器; 以及响应于来自滤光器的光波的多峰响应偏振复用光信号的偏振复用级。 发生器包括由重复频率（I）驱动以产生多个频谱峰值的级联相位调制器和强度调制器，每个峰值由由相应波特率（f baud / s）电信号驱动的光学调制器调制。

公开(公告)号：US20100208853A1

公开(公告)日：2010-08-19

申请号：US12372378

申请日：2009-02-17

申请人： Dayou Qian ,  Jianjun Yu ,  Ting Wang

发明人： Dayou Qian ,  Jianjun Yu ,  Ting Wang

IPC分类号： H03D1/04 ,  H03M7/00

CPC分类号： H04L27/233

摘要： A system and method to adjust the symbol constellation used to de-map a signal in an optical coherent communications system. A feedback de-mapper adjustment module is configured to compare average Error Vector Magnitude and Bit Error Ratio to a pre-defined table to determine when a constellation de-mapper mismatch occurs. The feedback de-mapper adjustment module then rotates the de-mapper constellation in order to compensate for phase drift.

摘要翻译： 一种用于调整用于在光学相干通信系统中去映射信号的符号星座的系统和方法。 反馈解映射器调整模块被配置为将平均误差矢量幅度和误码率与预定义的表进行比较，以确定何时发生星座解映射器失配。 反馈解映射器调整模块随后旋转去映射器星座以便补偿相位漂移。