Bandwidth Efficient Coding for an Orthogonal Frequency Multiplexing OFDM System
    1.
    发明申请
    Bandwidth Efficient Coding for an Orthogonal Frequency Multiplexing OFDM System 有权
    用于正交频分复用OFDM系统的带宽高效编码

    公开(公告)号:US20090080551A1

    公开(公告)日:2009-03-26

    申请号:US12236840

    申请日:2008-09-24

    申请人: Chuanhui Ma Ting Wang

    发明人: Chuanhui Ma Ting Wang

    IPC分类号: H04L27/28

    摘要: A method for encoding an OFDM signal includes pairing two adjacent subcarriers of an OFDM signal as a group, changing a modulated symbol set of the OFDM signal to a modified symbol set for coding the OFDM signal, and providing a modified baseband OFDM signal with an increased frequency separation between the subcarriers and reducing the total number of subcarriers being used for transmission over each OFDM symbol interval.

    摘要翻译: 对OFDM信号进行编码的方法包括将OFDM信号的两个相邻子载波组合成一组,将OFDM信号的调制符号集合改变为用于对OFDM信号进行编码的修改符号集,并且提供具有增加的OFDM符号的修改的基带OFDM信号 子载波之间的频率间隔,并且减少用于每个OFDM符号间隔上的传输的子载波的总数。

    Bandwidth efficient coding for an orthogonal frequency multiplexing OFDM system
    2.
    发明授权
    Bandwidth efficient coding for an orthogonal frequency multiplexing OFDM system 有权
    正交频分复用OFDM系统的带宽高效编码

    公开(公告)号:US08130851B2

    公开(公告)日:2012-03-06

    申请号:US12236840

    申请日:2008-09-24

    申请人: Chuanhui Ma Ting Wang

    发明人: Chuanhui Ma Ting Wang

    摘要: A method for encoding an OFDM signal includes pairing two adjacent subcarriers of an OFDM signal as a group, changing a modulated symbol set of the OFDM signal to a modified symbol set for coding the OFDM signal, and providing a modified baseband OFDM signal with an increased frequency separation between the subcarriers and reducing the total number of subcarriers being used for transmission over each OFDM symbol interval.

    摘要翻译: 对OFDM信号进行编码的方法包括将OFDM信号的两个相邻子载波组合成一组,将OFDM信号的调制符号集合改变为用于对OFDM信号进行编码的修改符号集,并且提供具有增加的OFDM符号的修改的基带OFDM信号 子载波之间的频率间隔,并且减少用于每个OFDM符号间隔上的传输的子载波的总数。

    On-off keying-7-phase shift keying modulation system and method for fiber communication
    3.
    发明授权
    On-off keying-7-phase shift keying modulation system and method for fiber communication 有权
    开关键控7-相移键控调制方式及光纤通信方式

    公开(公告)号:US07579921B2

    公开(公告)日:2009-08-25

    申请号:US12048451

    申请日:2008-03-14

    申请人: Chuanhui Ma Ting Wang

    发明人: Chuanhui Ma Ting Wang

    IPC分类号: H04L27/20 H04L27/22

    摘要: A modulation system includes a modulator configured to employ a modulation mechanism on data. The mechanism includes a signal constellation configured to map sub-carriers which include a signal to be modulated. The signal constellation has a plurality of points asymmetrically disposed on a circle about an origin and a point at the origin wherein a number of sub-carriers becomes variable over different symbol intervals. Corresponding demodulators and corresponding methods are also disclosed.

    摘要翻译: 调制系统包括调制机构,用于对数据采用调制机制。 该机构包括被配置为映射包括要调制的信号的子载波的信号星座。 信号星座具有不对称地设置在围绕原点的圆上的多个点和在原点处的点,其中多个子载波在不同的符号间隔上变得可变。 还公开了相应的解调器和相应的方法。

    Smart fish tank
    4.
    外观设计

    公开(公告)号:USD1019003S1

    公开(公告)日:2024-03-19

    申请号:US29823396

    申请日:2022-01-17

    申请人: Ting Wang

    设计人: Ting Wang

    摘要: FIG. 1 is a front view of a smart fish tank showing my new design;
    FIG. 2 is a rear view thereof;
    FIG. 3 is a right side view thereof;
    FIG. 4 is a left side view thereof;
    FIG. 5 is a top plan view thereof;
    FIG. 6 is a bottom plan view thereof; and,
    FIG. 7 is a perspective view thereof.
    The broken lines in the drawings depict portions of the smart fish tank and form no part of the claimed design.

    Smart fish tank
    5.
    外观设计

    公开(公告)号:USD953651S1

    公开(公告)日:2022-05-31

    申请号:US29768677

    申请日:2021-01-31

    申请人: Ting Wang

    设计人: Ting Wang

    Generating a 400-Gbit/s single-channel optical signal
    8.
    发明授权
    Generating a 400-Gbit/s single-channel optical signal 有权
    生成400 Gbit / s单通道光信号

    公开(公告)号:US08873970B2

    公开(公告)日:2014-10-28

    申请号:US12789943

    申请日:2010-05-28

    CPC分类号: H04B10/548 H04J14/06

    摘要: A method for generating a 400 Gb/s single channel optical signal from multiple modulated subchannels includes carving respective modulated subchannels into return-to-zero RZ modulated subchannels having non-overlapping peaks with intensity modulators having a duty cycle less than 50%, and combining the subchannels into a single channel signal aggregating the bit rate of each of the subchannels. The subchannels are combined with a flat top optical component for increased subsequent receiver sensitivity.

    摘要翻译: 用于从多个调制子信道生成400Gb / s单信道光信号的方法包括将具有非重叠峰值的相应调制子信道刻蚀成具有占空比小于50%的强度调制器的归零至零RZ调制子信道,以及组合 将子信道转换成单个信道信号,聚合每个子信道的比特率。 子通道与平顶光学部件组合,以增加后续的接收灵敏度。

    Optical-layer traffic grooming at an OFDM subcarrier level with photodetection conversion of an input optical OFDM to an electrical signal
    9.
    发明授权
    Optical-layer traffic grooming at an OFDM subcarrier level with photodetection conversion of an input optical OFDM to an electrical signal 有权
    在OFDM子载波电平处的光层业务整合,其中输入光OFDM的光检测转换为电信号

    公开(公告)号:US08787762B2

    公开(公告)日:2014-07-22

    申请号:US13402418

    申请日:2012-02-22

    IPC分类号: H04J14/02

    CPC分类号: H04J14/0212 H04J14/0298

    摘要: A method for optical layer traffic grooming includes receiving at least two optical input signals into respective optical receivers, each optical receiver having a photodetector for converting the respective optical input signal into a respective electrical signal; a grooming processor responsive to the electrical signals, the grooming processor being a radio frequency RF processor for processing the electrical signals at a subcarrier level to produce an RF orthogonal frequency division multiplexing signal OFDM signal; and modulating the groomed RF OFDM signal at a transmitter for conversion of the groomed RF OFDM into an optical signal.

    摘要翻译: 一种用于光层流量梳理的方法包括:将至少两个光输入信号接收到相应的光接收器中,每个光接收器具有用于将相应的光输入信号转换成相应的电信号的光电检测器; 一个整理处理器,响应于电信号,整修处理器是一个射频RF处理器,用于处理子载波电平的电信号,以产生一个RF正交频分复用信号OFDM信号; 以及在发射机处调制经修整的RF OFDM信号,以将整修的RF OFDM转换成光信号。

    Efficient square-root free 2 symbol max-log receiver
    10.
    发明授权
    Efficient square-root free 2 symbol max-log receiver 有权
    高效的平方根自由2符号最大对数接收器

    公开(公告)号:US08767888B2

    公开(公告)日:2014-07-01

    申请号:US13433873

    申请日:2012-03-29

    摘要: The present invention employs a look up table based implementation for the metric computations which eliminate redundancy and substantially reduce the number of multiplications. Moreover, inventive method exploits the fact that the un-normalized constellation symbols are complex integers so that the product of a real-number and an un-normalized constellation symbol can be implemented by only additions. The inventive method also enables a greater efficiency for whitening colored noise prior to demodulation, one of which involves no square-root operation. The invention results in less complexity, faster operation, lower power consumption, without sacrificing performance.

    摘要翻译: 本发明使用用于度量计算的查找表实现,其消除冗余并且显着减少乘法次数。 此外,本发明的方法利用了未归一化的星座符号是复数整数的事实,使得实数和未归一化的星座符号的乘积可以仅通过添加来实现。 本发明的方法还使得能够在解调之前增加有色噪声的效率,其中之一不涉及平方根操作。 本发明导致更少的复杂性,更快的操作,更低的功耗,而不会牺牲性能。