Equalizing a signal modulated using a 5QAM modulation format
    21.
    发明授权
    Equalizing a signal modulated using a 5QAM modulation format 有权
    使用5QAM调制格式调制的信号均衡

    公开(公告)号:US09246735B2

    公开(公告)日:2016-01-26

    申请号:US13931369

    申请日:2013-06-28

    CPC classification number: H04L27/3444 H04B10/541 H04B10/612

    Abstract: An optical system may include an optical transmitter or an optical receiver. The optical transmitter may include a laser to provide an input signal, a first digital signal processor (DSP) to receive a data signal, provide non-rotated and rotated symbols corresponding to the data signal, and provide digital signals corresponding to the non-rotated and the rotated symbols to cause one or more digital to analog converts to convert the digital signals to analog signals. The optical transmitter may further provide a modified 5 quadrature amplitude modulation (5QAM) signal based on the analog signals and the input signal. A constellation map of the modified 5QAM signal may include all constellation points of a 16QAM signal. The optical receiver may include a second DSP to receive components associated with the 5QAM signal, filter the components, reduce phase noise of the 5QAM signal, and provide data associated with the 5QAM signal.

    Abstract translation: 光学系统可以包括光发射机或光接收机。 光发射机可以包括提供输入信号的激光器,用于接收数据信号的第一数字信号处理器(DSP),提供对应于数据信号的非旋转和旋转的符号,并且提供对应于未旋转的数字信号 和旋转的符号以使一个或多个数模转换器将数字信号转换为模拟信号。 光发射机还可以基于模拟信号和输入信号提供修正的5正交幅度调制(5QAM)信号。 经修改的5QAM信号的星座图可以包括16QAM信号的所有星座点。 光接收器可以包括用于接收与5QAM信号相关联的组件的第二DSP,对组件进行滤波,减少5QAM信号的相位噪声,并提供与5QAM信号相关联的数据。

    Method for estimating a chromatic dispersion of a received optical signal
    22.
    发明授权
    Method for estimating a chromatic dispersion of a received optical signal 有权
    用于估计接收的光信号的色散的方法

    公开(公告)号:US09203508B2

    公开(公告)日:2015-12-01

    申请号:US13896544

    申请日:2013-05-17

    CPC classification number: H04B10/07 G01M11/338 H04B10/6161

    Abstract: The present disclosure relates to a method for estimating chromatic dispersion of a received optical signal (Rx(f)), the method comprising: scanning the received optical signal (Rx(f)) through a number (M) of chromatic dispersion compensation filters in a chromatic dispersion filter range (Dmin . . . Dmax) between a first chromatic dispersion value (Dmin) and a second chromatic dispersion value (Dmax) with a resolution (ΔD) determined by the chromatic dispersion filter range (Dmin . . . Dmax) normalized by the number (M) of chromatic dispersion compensation filters to obtain filtered samples (Rx, D(f)) of the received optical signal (Rx(f)); and determining a correlation function (CD(τ,B)) indicating an estimate of the chromatic dispersion by correlating the filtered samples (Rx, D(f)) of the received optical signal (Rx(f)) with respect to frequency shifts (τ) over a correlation bandwidth (B), wherein the correlation bandwidth (B), the chromatic dispersion filter range (Dmin . . . Dmax) and the resolution (ΔD) are iteratively adapted according to an optimization criterion.

    Abstract translation: 本发明涉及一种用于估计接收的光信号(Rx(f))的色散的方法,所述方法包括:通过数字(M)的色散补偿滤波器扫描接收的光信号(Rx(f)), 具有由色散滤波器范围(Dmin ...)确定的分辨率(&Dgr; D)的第一色散值(Dmin)和第二色散值(Dmax)之间的色散滤波器范围(Dmin。Dmax) 通过色散补偿滤波器的数量(M)归一化以获得接收的光信号(Rx(f))的滤波样本(Rx,D(f))); 以及通过将所接收的光信号(Rx(f))的滤波样本(Rx,D(f))相对于频移相关来确定指示色散的估计的相关函数(CD(τ,B) 相关带宽(B),其中相关带宽(B),色散滤波器范围(Dmin ... Dmax)和分辨率(&Dgr; D)根据优化标准被迭代地适配。

    Optical microphone
    23.
    发明授权
    Optical microphone 有权
    光学麦克风

    公开(公告)号:US09197969B2

    公开(公告)日:2015-11-24

    申请号:US13950961

    申请日:2013-07-25

    CPC classification number: H04R23/008 Y10T428/24008

    Abstract: An optical microphone includes: an acousto-optic medium section having a pair of principal surfaces and at least one lateral surface provided therebetween; a restraint section which is in contact with the at least one lateral surface for preventing a shape change of the acousto-optic medium section; and a light emitting section for emitting a light wave so as to propagate through the acousto-optic medium section between the pair of principal surfaces. The pair of principal surfaces are in contact with an environmental fluid through which an acoustic wave to be detected is propagating and are capable of freely vibrating, and an optical path length variation of a light wave propagating through the acousto-optic medium section, which is caused by the acoustic wave that comes into the acousto-optic medium section from at least one of the pair of principal surfaces and propagates through the acousto-optic medium section, is detected.

    Abstract translation: 光学麦克风包括:具有一对主表面和设置在它们之间的至少一个侧表面的声光介质部分; 限制部,其与所述至少一个侧面接触,用于防止所述声光介质部的形状变化; 以及用于发射光波以便在所述一对主表面之间传播通过声光介质部分的发光部分。 一对主表面与待检测的声波正在传播并能够自由振动的环境流体接触,并且通过声光介质部分传播的光波的光程长度变化是 由从一对主表面中的至少一个进入声光介质部分并通过声光介质部分传播的声波引起。

    Information communication method
    26.
    发明授权
    Information communication method 有权
    信息通信方式

    公开(公告)号:US09087349B2

    公开(公告)日:2015-07-21

    申请号:US14087665

    申请日:2013-11-22

    Abstract: An information communication method that enables communication between various devices includes: transmitting position information indicating a position of a terminal device; obtaining one or more sets of identification information of respective one or more devices and one or more sets of service information respectively associated with the one or more sets of identification information, and holding the one or more sets of identification information and the one or more sets of service information; setting an exposure time of an image sensor; obtaining a bright line image including a plurality of bright lines; obtaining identification information of a subject, by demodulating data specified by a pattern of the plurality of bright lines included in the obtained bright line image; and selecting service information associated with the identification information of the subject from the held one or more sets of service information, and presenting the service information to a user.

    Abstract translation: 能够实现各种装置之间的通信的信息通信方法包括:发送表示终端装置的位置的位置信息; 获取一组或多组相应的一个或多个设备的识别信息以及与所述一组或多组识别信息分别相关联的一组或多组服务信息,以及保持所述一组或多组识别信息和所述一组或多组 的服务信息; 设置图像传感器的曝光时间; 获得包括多条亮线的亮线图像; 通过解调由所获得的亮线图像中包括的多条亮线的图案指定的数据来获得被摄体的识别信息; 以及从所保持的一组或多组服务信息中选择与所述对象的识别信息相关联的服务信息,以及向所述用户呈现所述服务信息。

    Coherent optical transceiver with programmable application modes
    27.
    发明授权
    Coherent optical transceiver with programmable application modes 有权
    具有可编程应用模式的相干光收发器

    公开(公告)号:US09071364B1

    公开(公告)日:2015-06-30

    申请号:US13655302

    申请日:2012-10-18

    CPC classification number: H04B10/40 H04B10/2507 H04B10/58

    Abstract: An optical communication system provides coherent optical transmission for metro applications. Relative to conventional solutions, the optical communication system can be implemented with reduced cost and can operate with reduced power consumption, while maintaining high data rate performance (e.g., 100 G). Furthermore, a programmable transceiver enables compatibility with a range of different types of optical networks having varying performance and power tradeoffs. In one embodiment, the optical communication system uses 100 Gb/s dual-polarization 16-point quadrature amplitude modulation (DP-16QAM) with non-linear pre-compensation of Indium Phosphide (InP) optics for low power consumption.

    Abstract translation: 光通信系统为城域应用提供相干光传输。 相对于传统解决方案,光通信系统可以以降低的成本实现,并且可以在降低功耗的情况下工作,同时保持高数据速率性能(例如,100G)。 此外,可编程收发器能够与具有不同性能和功率权衡的不同类型的光网络兼容。 在一个实施例中,光通信系统使用具有用于低功耗的铟磷化物(InP)光学器件的非线性预补偿的100Gb / s双极化16点正交幅度调制(DP-16QAM)。

    System and method for infrared dongle
    28.
    发明授权
    System and method for infrared dongle 有权
    红外加密狗的系统和方法

    公开(公告)号:US09036996B2

    公开(公告)日:2015-05-19

    申请号:US14198774

    申请日:2014-03-06

    Applicant: Tubetime Inc.

    CPC classification number: H04B10/1141 G08C19/36 G08C23/04 H04B10/114

    Abstract: A method of controlling consumer devices using an infrared dongle coupled to a mobile device includes receiving power for the infrared dongle from the mobile device. The infrared dongle includes an infrared transmitter coupled to a microcontroller. One or more instructions are received in the microcontroller from the mobile device. The received one or more instructions are generated from codes stored in a memory of the mobile device. In response to the receiving, one or more infrared signals are transmitted via the infrared transmitter to at least one of the consumer devices.

    Abstract translation: 使用耦合到移动设备的红外加密狗控制消费者设备的方法包括从移动设备接收红外加密狗的电力。 红外加密狗包括耦合到微控制器的红外发射器。 在微控制器中从移动设备接收一个或多个指令。 所接收的一个或多个指令是从存储在移动设备的存储器中的代码产生的。 响应于接收,一个或多个红外信号通过红外发射器发射到消费者设备中的至少一个。

    Method and apparatus for compensating for polarization mode dispersion (PMD)

    公开(公告)号:US09020365B2

    公开(公告)日:2015-04-28

    申请号:US12082091

    申请日:2008-04-08

    CPC classification number: H04B10/2569 H04B10/07953 H04B10/6162

    Abstract: Current optical networks are engineered to handle amplifier noise and chromatic dispersion. Polarization mode dispersion occurs in optical networks due splitting of the light energy of a pulse propagating in a fiber into two modes. Compensating for polarization mode dispersion is a difficult and expensive task and hence only few commercial systems have been deployed to deal with this issue. A polarization mode dispersion compensation module according to an example embodiment of the present invention compensates for polarization mode dispersion by determining a performance metric related to an error rate of an optical signal in at least one polarization mode in a filtered state. Based on the performance metric, a control vector is determined to control the optical signal in the at least one polarization mode in the filtered state. The control vector is then applied to a polarization effecting device to compensate for polarization mode dispersion.

    Optical transmitter and method for optical signal waveform compensation
    30.
    发明授权
    Optical transmitter and method for optical signal waveform compensation 有权
    光发射机和光信号波形补偿方法

    公开(公告)号:US09014570B2

    公开(公告)日:2015-04-21

    申请号:US13417821

    申请日:2012-03-12

    Applicant: Toshio Ishii

    Inventor: Toshio Ishii

    CPC classification number: H04B10/50593

    Abstract: An optical transmitter includes: a modulator driver to generate a drive signal from an input signal; a modulator to generate a modulated optical signal according to the drive signal; an amplitude detector to detect an input amplitude representative of an amplitude of the input signal; and a controller to generate a waveform control signal according to the input amplitude detected by the amplitude detector. The modulator driver controls a waveform of the drive signal according to the waveform control signal.

    Abstract translation: 光发射机包括:调制器驱动器,用于从输入信号产生驱动信号; 调制器,用于根据驱动信号产生调制光信号; 幅度检测器,用于检测表示所述输入信号的幅度的输入幅度; 以及控制器,用于根据由振幅检测器检测到的输入幅度产生波形控制信号。 调制器驱动器根据波形控制信号控制驱动信号的波形。

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