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    ANALOG-TO-DIGITAL CONVERSION WITH NOISE INJECTION VIA WAVEFRONT MULTIPLEXING TECHNIQUES
    2.
    发明申请
    ANALOG-TO-DIGITAL CONVERSION WITH NOISE INJECTION VIA WAVEFRONT MULTIPLEXING TECHNIQUES 审中-公开
    通过WAVEFRONT多路复用技术进行噪声注入的模拟数字转换

    公开(公告)号：US20170047935A1

    公开(公告)日：2017-02-16

    申请号：US15339882

    申请日：2016-10-31

    Applicant: SPATIAL DIGITAL SYSTEMS, INC.

    Inventor： Donald C.D. Chang ,  Tzer-Hso Lin ,  Yuanchang Liu

    IPC: H03M1/00 ,  H03M1/12 ,  H03M1/20 ,  H03M1/08

    CPC classification number: H03M1/002 ,  H03M1/0641 ,  H03M1/08 ,  H03M1/12 ,  H03M1/1205 ,  H03M1/1215 ,  H03M1/188 ,  H03M1/20 ,  H04B1/0475 ,  H04B1/123 ,  H04B7/10 ,  H04L27/06

    Abstract: An analog-to-digital conversion system comprises a first processor, a bank of N analog-to-digital converters, and a second processor. The first processor is configured to receive M input signal streams, perform a wave-front multiplexing transform in analog domain on the M input signal streams and output concurrently N mixed signal streams, M and N being integers and N≧M>1. The wave-front multiplexing transform comprises a first set of wave-front vectors. The bank of N analog-to-digital converters is coupled to the first processor. The N analog-to-digital converters convert the N mixed signal streams from analog format to digital format and output concurrently N digital data streams. The second processor is coupled to the bank of N analog-to-digital converters. The second processor is configured to receive the N digital data streams, perform a wave-front de-multiplexing transform in digital domain on the N digital data streams and output concurrently N output data streams such that the N output data streams comprise M output data streams that correspond respectively to the M input signal streams. The wave-front de-multiplexing transform comprises a second set of wave-front vectors.

    Abstract translation: 模数转换系统包括第一处理器，一组N个模数转换器和第二处理器。 第一处理器被配置为接收M个输入信号流，在M个输入信号流上以模拟域执行波前复用变换，同时输出N个混合信号流，M和N为整数，N≥M> 1。 波前复用变换包括第一组波前向量。 N模拟数字转换器的组合耦合到第一处理器。 N个模数转换器将N个混合信号流从模拟格式转换为数字格式，同时输出N个数字数据流。 第二处理器耦合到N个模数转换器组。 第二处理器被配置为接收N个数字数据流，对N个数字数据流中的数字域执行波前解复用变换并且同时输出N个输出数据流，使得N个输出数据流包括M个输出数据流 分别对应于M个输入信号流。 波前解复用变换包括第二组波前向量。

    ACCESSING CP CHANNELS WITH LP TERMINALS VIA WAVEFRONT MULTIPLEXING
    3.
    发明申请
    ACCESSING CP CHANNELS WITH LP TERMINALS VIA WAVEFRONT MULTIPLEXING 审中-公开

    公开(公告)号：US20170324506A1

    公开(公告)日：2017-11-09

    申请号：US15633752

    申请日：2017-06-26

    Applicant: SPATIAL DIGITAL SYSTEMS, INC.

    Inventor： Juo-Yu Lee ,  Donald C.D. Chang ,  Tzer-Hso Lin

    IPC: H04J14/06 ,  H01Q21/24 ,  H04B7/185

    CPC classification number: H04J14/06 ,  H01Q21/245 ,  H04B7/18504 ,  H04B7/18513

    Abstract: An apparatus comprises a wavefront muxing processor receiving first and second input signals to generate first and second output signals on first and second communication channels, respectively, the first and second output signals being at a common frequency slot and having relative differential amplitude and phase delays; and an amplitude and phase adjustment element located at one of the first and second communication channels to adjust the relative differential amplitude and phase delays using an adjustment amount to reduce interference in the first and second communication channels. The first output signal is a weighted sum of the first input signal and the second input signal that is phase shifted by a second phase shift. The second output signal is a weighted sum of the second input signal and the first input signal that is phase shifted by a first phase shift. The two output signals are transmitted to a transponder.

    Accessing CP channels with LP terminals via wavefront multiplexing
    5.
    发明授权
    Accessing CP channels with LP terminals via wavefront multiplexing 有权

    公开(公告)号：US10027438B2

    公开(公告)日：2018-07-17

    申请号：US15633752

    申请日：2017-06-26

    Applicant: SPATIAL DIGITAL SYSTEMS, INC.

    Inventor： Juo-Yu Lee ,  Donald C. D. Chang ,  Tzer-Hso Lin

    IPC: H04J14/06 ,  H01Q21/24 ,  H04B7/185

    Abstract: An apparatus comprises a wavefront muxing processor receiving first and second input signals to generate first and second output signals on first and second communication channels, respectively, the first and second output signals being at a common frequency slot and having relative differential amplitude and phase delays; and an amplitude and phase adjustment element located at one of the first and second communication channels to adjust the relative differential amplitude and phase delays using an adjustment amount to reduce interference in the first and second communication channels. The first output signal is a weighted sum of the first input signal and the second input signal that is phase shifted by a second phase shift. The second output signal is a weighted sum of the second input signal and the first input signal that is phase shifted by a first phase shift. The two output signals are transmitted to a transponder.

    ARCHITECTURES AND METHODS FOR NOVEL ANTENNA RADIATION OPTIMIZATION VIA FEED REPOSITIONING
    7.
    发明申请
    ARCHITECTURES AND METHODS FOR NOVEL ANTENNA RADIATION OPTIMIZATION VIA FEED REPOSITIONING 审中-公开
    新型天线辐射优化的建筑与方法

    公开(公告)号：US20160268676A1

    公开(公告)日：2016-09-15

    申请号：US15159827

    申请日：2016-05-20

    Applicant: SPATIAL DIGITAL SYSTEMS, INC.

    Inventor： Donald C.D. Chang ,  Tzer-Hso Lin ,  Eric Hu

    IPC: H01Q3/06 ,  H01Q3/40 ,  H01Q19/12

    CPC classification number: H01Q3/06 ,  H01Q3/04 ,  H01Q3/40 ,  H01Q19/10 ,  H01Q19/12 ,  H01Q19/132

    Abstract: An antenna system comprises: multiple antenna elements; and multiple beam forming networks configured to produce radiation patterns for both receiving and transmission functions configured to be optimized by re-positioning said antenna elements, wherein said beam forming networks comprise a receiving beam forming network configured to combine multiple first inputs from said antenna elements into at least a first output, and a transmission beam forming network configured to divide a second input into multiple second outputs to said antenna elements.

    Abstract translation: 天线系统包括：多个天线元件; 以及多个波束形成网络，其被配置为产生用于接收和传输功能的辐射图，所述辐射图形被配置为通过重新定位所述天线元件来优化，其中所述波束形成网络包括接收波束形成网络，其被配置为将来自所述天线元件的多个第一输入 至少第一输出和被配置为将第二输入分成多个第二输出到所述天线元件的发射波束形成网络。

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