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11. 发明申请

US20130214955A1 ANALOG-TO-DIGITAL CONVERSION WITH NOISE INJECTION VIA WAVEFRONT MULTIPLEXING TECHNIQUES 有权
公开(公告)号：US20130214955A1
公开(公告)日：2013-08-22
申请号：US13762413
申请日：2013-02-08
申请人： Donald C.D. Chang
发明人： Donald C.D. Chang , Tzer-Hso Lin , Yuanchang Liu
IPC分类号： H03M1/12
CPC分类号： H03M1/002 , H03M1/0641 , H03M1/08 , H03M1/12 , H03M1/1205 , H03M1/1215 , H03M1/188 , H03M1/20 , H04B1/0475 , H04B1/123 , H04B7/10 , H04L27/06
摘要： A novel noise injection technique is presented to improve dynamic range with low resolution and low speed analog to digital converters. This technique combines incoming signal and noise signal with wave front de-multiplexer and split into several channels. Then low resolution and low speed analog to digital converters are used to sample each channels. All signals are recovered using wave front multiplexer. For advanced design, ground diagnostic signals with optimizing processor can be added to guarantee recovery quality.

12. 发明申请

US20170134493A1 Mobile Accessing Private Data on Cloud 审中-公开
公开(公告)号：US20170134493A1
公开(公告)日：2017-05-11
申请号：US14935312
申请日：2015-11-06
申请人： Donald C.D. Chang , Juo-Yu Lee , Steve K. Chen
发明人： Donald C.D. Chang , Juo-Yu Lee , Steve K. Chen
IPC分类号： H04L29/08 , G06F17/30
CPC分类号： H04L67/1097 , G06F17/30516 , H04L67/06 , H04L67/1025
摘要： Presented are cloud storage architectures for private data among terminals with enhanced capability of data privacy and survivability. Pre-processing for storing data in IP cloud comprises: transforming multiple first data sets into multiple second data sets at an uploading site, wherein one of said second data sets comprises a weighted sum of said first data sets; storing said second data sets in an IP cloud via IP connectivity; and storing multiple data storages linking to said second data sets at said uploading site. In accordance with an embodiment post processing may comprise recovering said second data sets at a downloading site via IP network.

13. 发明申请

US20150263821A1 ACCESSING CP CHANNELS WITH LP TERMINALS VIA WAVEFRONT MULTIPLEXING 审中-公开
公开(公告)号：US20150263821A1
公开(公告)日：2015-09-17
申请号：US14728980
申请日：2015-06-02
申请人： Juo-Yu Lee , Donald C.D. Chang , Tzer-Hso Lin
发明人： Juo-Yu Lee , Donald C.D. Chang , Tzer-Hso Lin
IPC分类号： H04J14/06
CPC分类号： H04J14/06 , H01Q21/245 , H04B7/18504 , H04B7/18513
摘要： Presented are methods that utilize wavefront multiplexing for enabling linearly-polarized terminals to access circularly-polarized satellite transponders. The methods disclosed herein feature (1) polarization formation capability that renders transmitted signal conditioned on circularly-polarized channels through multiple linearly-polarized feeds, and (2) polarization-conversion capability that compensate path differentials introduced by electromagnetic wave propagation channels. Data streams to be transmitted are pre-processed by a wavefront multiplexer into multiple wavefront components in linear polarization formats, where signals from respective data streams are replicated into linearly-polarized sub-channels. These replicated data streams are linked via a unique complex weighting vector (amplitude and phase or their equivalents), or “wavefront”, which are also linked by various spatially independent wavefronts. Additionally, a probing signal is sent on the transmitting side and linked via some of the independent wavefronts. Aggregated signals in linearly-polarized sub-channels are unique linear combinations of all input data streams. Aggregated signals in turn appear in circularly-polarized formats and propagate through circularly-polarized channels including circularly-polarized satellite transponders and a circularly-polarized teleport on the receiving side. Correlation between the circularly-polarized signal and the probing signal is sent back to the transmitting side that drives the polarization-conversion function toward the optimal state such that this correlation is lower than a pre-defined level. Accordingly, an optimally configured satellite communication system either (1) enables the linearly-polarized terminal on the transmitting side to access right-hand circularly-polarized satellite transponder without interfering the left-hand circularly-polarized satellite transponder, or (2) enables the linearly-polarized terminal on the transmitting side to access left-hand circularly-polarized satellite transponder without interfering the right-hand circularly-polarized satellite transponder.

14. 发明申请

US20140198709A1 DISTRIBUTED SATCOM APERTURE ON FISHING BOAT 有权
标题翻译：渔船分销沙特孔
公开(公告)号：US20140198709A1
公开(公告)日：2014-07-17
申请号：US14203386
申请日：2014-03-10
申请人： Donald C.D. Chang
发明人： Donald C.D. Chang
IPC分类号： H04W4/06 , H04W72/00 , H04B7/185
CPC分类号： H04B7/18526 , H04B7/18504 , H04B7/18578
摘要： Embodiments of a mobile communications system to service multiple users in fishing boats over same spectrum in a communication satellite network and a method for the system are generally described herein. Signals of data streams for transmission to user equipment (UE) in spoke-and-hub configurations will utilize multiple transponders of satellites. Radiation patterns from ground terminals with distributed apertures feature orthogonal beams (OB). A tracking OB beam from a moving platform dynamically shall autonomously be formed as a shaped beam by a digital-beam-forming (DBF) network with a peak to a desired satellite, and nulls to undesired satellites to minimize mutual interferences among multiple satellite spatially. Comparing with many current mobile VSAT schemes via spreading transmitting power to a broader bandwidth reducing mutual interference to an acceptable level, the advanced terminals are more bandwidth efficient in utilizing space assets. Furthermore, to access reasonably low priced space assets, advanced ground hubs and mobile terminals feature “coherent” bandwidth aggregating capability from multiple available but non-contiguous slices of frequency slots in many transponders by wavefront multiplexing/demultiplexing (WF muxing/demuxing) techniques. These available residual frequency slots are negotiable to become “low priced” in general. The aggregated assets from slots in various transponders will function as individual virtual wideband channels. These individual frequency slots must be dynamically selected, calibrated and equalized continuously in receivers via embedded probing signals as a part of WF muxing/demuxing techniques. Among many other benefits of WF muxing, we may utilize linearly polarized (LP) space asset to service circularly polarized (CP) mobile users. Generally, CP mobile ground terminals are cheaper than LP ones.
摘要翻译：通常在通信卫星网络中通过相同频谱服务于渔船中的多个用户的移动通信系统的实施例和系统的方法。用于传输到辐射和轮毂配置中的用户设备（UE）的数据流的信号将利用卫星的多个应答器。具有分布孔径的接地端子的辐射图案具有正交波束（OB）。来自移动平台的跟踪OB波束将自动地通过具有到期望卫星的峰值的数字波束形成（DBF）网络自动地形成为成形波束，并且对于不需要的卫星为零，以最小化空间上的多个卫星之间的相互干扰。与许多当前的移动VSAT方案相比，通过将发射功率扩展到更宽的带宽，将相互干扰降低到可接受的水平，高级终端在利用空间资产方面具有更高的带宽效率。此外，为了获得价格相当低廉的空间资产，先进的地面集线器和移动终端通过波前复用/解复用（WF复用/解复用）技术，在许多应答器的多个可用但非连续的频率片段中具有“一致”的带宽聚合能力。这些可用的残留频率槽通常可以变成“低价格”。来自各种应答器中的插槽的聚合资产将用作单独的虚拟宽带信道。作为WF复用/解复用技术的一部分，这些单独的频率时隙必须通过嵌入式探测信号在接收机中连续动态选择，校准和均衡。在WF多路复用的许多其他好处中，我们可以利用线性极化（LP）空间资产来服务于环形极化（CP）移动用户。一般来说，CP移动接地终端比LP便宜。

15. 发明申请

US20130321206A1 INTERFERENCE REJECTIONS OF SATELLITE GROUND TERMINAL WITH ORTHOGONAL BEAMS 审中-公开
标题翻译：卫星接地终端与正弦波的干扰抑制
公开(公告)号：US20130321206A1
公开(公告)日：2013-12-05
申请号：US13904051
申请日：2013-05-29
申请人： Donald C.D. Chang
发明人： Donald C.D. Chang
IPC分类号： H01Q3/34
CPC分类号： H01Q3/34 , H01Q3/40 , H01Q25/00
摘要： An outdoor unit of a satellite ground terminal is capable of simultaneously receiving satellite signals or data streams originated from multiple different orbital satellites operating at the same frequency in a satellite communication frequency band such as Ka band or Ku band by multiple concurrent orthogonal beams, which are generated by multiple analogue or digital beam forming networks of the outdoor unit and an antenna, such as multiple-beam antenna or direct radiating/reception array, of the outdoor unit. Each of the orthogonal beams has a beam peak in the desired direction and multiple nulls in the interference directions.
摘要翻译：卫星接地终端的室外单元能够同时接收卫星信号或源自卫星通信频带（如Ka频带或Ku频带）中的相同频率的多个不同轨道卫星的多个并行正交波束的数据流，由户外单元的多个模拟或数字波束形成网络和室外单元的诸如多波束天线或直接辐射/接收阵列的天线产生。每个正交光束在所需方向上具有光束峰值，并且在干涉方向上具有多个零点。

16. 发明申请

US20120062404A1 Novel Noise Injection Technique 有权
标题翻译：新型噪声注入技术
公开(公告)号：US20120062404A1
公开(公告)日：2012-03-15
申请号：US12985044
申请日：2011-01-05
申请人： Tzer-Hso Lin , Yuanchang Liu , Donald C.D. Chang
发明人： Tzer-Hso Lin , Yuanchang Liu , Donald C.D. Chang
IPC分类号： H03M1/00 , H03M1/12
CPC分类号： H03M1/002 , H03M1/0641 , H03M1/08 , H03M1/12 , H03M1/1205 , H03M1/1215 , H03M1/188 , H03M1/20 , H04B1/0475 , H04B1/123 , H04B7/10 , H04L27/06
摘要： A novel noise injection technique is presented to improve dynamic range with low resolution and low speed analog to digital converters. This technique combines incoming signal and noise signal with wave front de-multiplexer and split into several channels. Then low resolution and low speed analog to digital converters are used to sample each channels. All signals are recovered using wave front multiplexer. For advanced design, ground diagnostic signals with optimizing processor can be added to guarantee recovery quality.
摘要翻译：提出了一种新颖的噪声注入技术，通过低分辨率和低速模数转换器来改善动态范围。该技术将输入信号和噪声信号与波前解复用器相结合，并分为多个通道。然后使用低分辨率和低速模数转换器对每个通道进行采样。所有信号使用波前复用器进行恢复。对于先进的设计，可以添加具有优化处理器的接地诊断信号，以保证恢复质量。

17. 发明申请

US20170126297A1 Wavefront Multiplexing in Passive Optical Network with Remote Digital Beam Forming 审中-公开
公开(公告)号：US20170126297A1
公开(公告)日：2017-05-04
申请号：US14993442
申请日：2016-01-12
申请人： Donald C.D. Chang , Juo-Yu Lee , Steve K. Chen
发明人： Donald C.D. Chang , Juo-Yu Lee , Steve K. Chen
IPC分类号： H04B7/06 , H04B7/04 , H04B10/2575
CPC分类号： H04B7/0617 , H04B7/0413 , H04B10/2575
摘要： Four independent technologies are incorporated in this invention to efficiently and cost effectively implement dynamic last mile connectivity. The four technologies are passive optical networks (PON), Small cell, wavefront multiplexing (or K-muxing), and digital beam forming (DBF). We have filed US patents for communications architectures featuring K-muxing overlaid over low cost of PON. Those inventions relate particularly to resource allocation in passive optical networks (PON) via wavefront multiplexing (WF-muxing or K-muxing) and wavefront demultiplexing (WF-demuxing or K-demuxing). The “WF-muxing in PON” can be configured for performing remote digital beam forming (RDBF) over a service area covered by multiple small cells. The RDBF may generate multiple shaped beams with enhanced connectivity and better isolations over a same frequency slot concurrently to serve multiple users over the coverage area.

18. 发明申请

US20150270885A1 MIMO Systems with Active Scatters and their Performance Evaluation 审中-公开
标题翻译：具有主动散射的MIMO系统及其性能评估
公开(公告)号：US20150270885A1
公开(公告)日：2015-09-24
申请号：US14733842
申请日：2015-06-08
申请人： Donald C.D. Chang , Juo-Yu Lee
发明人： Donald C.D. Chang , Juo-Yu Lee
IPC分类号： H04B7/06 , H04B7/04
CPC分类号： H04B7/0413 , H04B7/0626 , H04B17/102 , H04B17/30 , H04B17/391
摘要： Presented are MIMO communications architectures among terminals with enhanced capability of frequency reuse by strategically placing active scattering platforms at right places. These architectures will not depend on multipaths passively from geometry of propagation channels and relative positions of transmitters and those of receivers. For advanced communications which demand high utility efficiency of frequency spectrum, multipath effects are purposely deployed through inexpensive active scattering objects between transmitters and receivers enable a same frequency slot be utilized many folds such as 10×, 100× or even more. These active scatters are to generate favorable geometries of multiple paths for frequency reuse through MIMO techniques. These scatters may be man-made active repeaters, which can be implemented as small as 5 to 10 watt lightbulbs for indoor mobile communications such as in large indoor shopping malls. The architecting concept can be certainly implemented via mini-UAV platforms parking on tops of light-poles, or tree tops, or tops of stadiums, or circulating in small “figure-8” or small circles slowly. This systems can be pushed to facilitate>>100× frequency reuses among users. It may be one of possible solutions for 5G deployment and many other applications which needs high efficiency in frequency utility.
摘要翻译：通过在正确的位置策略性地放置主动散射平台，提出了具有增强频率重用能力的终端之间的MIMO通信架构。这些架构将不依赖于传播信道的几何和发射机和接收机的相对位置的多路径。对于需要高频频谱效率的高级通信，通过在发射机和接收机之间廉价的有源散射物体有目的地部署多路径效应，可以使用相同的频率槽，例如10×100×甚至更多的倍数。这些有源散射是通过MIMO技术产生用于频率重用的多个路径的有利几何。这些散射可以是人造活动中继器，其可以实现为用于室内移动通信的小至5瓦灯泡，例如在大型室内购物中心。建筑概念可以通过迷你UAV平台来实现，它们停放在灯柱顶部或树顶上或体育场顶部，或者在小的“图8”或小圆圈中慢慢地循环。该系统可以推动，以方便用户之间的>> 100×频率重用。它可能是5G部署和需要高效率频率效用的许多其他应用的可能解决方案之一。

19. 发明申请

US20150248431A1 SURVIVABLE CLOUD DATA STORAGE AND TRANSPORT 审中-公开
标题翻译：可变的云数据存储和运输
公开(公告)号：US20150248431A1
公开(公告)日：2015-09-03
申请号：US14712145
申请日：2015-05-14
申请人： Juo-Yu Lee , Donald C.D. Chang , Steve K. Chen
发明人： Juo-Yu Lee , Donald C.D. Chang , Steve K. Chen
IPC分类号： G06F17/30 , G06F17/14
CPC分类号： G06F17/30153 , G06F17/30138 , G06F21/6209
摘要： Presented is a multi-channel data process to utilize wavefront multiplexing for data storage and data stream transport with redundancy on cloud or in a distribution network. This processing features additional applications for multi-media recording and data communications via transponding platforms including satellites, unmanned air vehicles (UAVs), or others for better survivability and faster accessing. Multiple concurrent data streams are pre-processed by a wavefront multiplexer into multiple sub-channels or wavefront components, where signals from respective data streams are replicated into sub-channels. These replicated data streams are linked via a unique complex weighting vector (amplitude and phase or their equivalents), or “wave-front”, which are also linked by various spatially independent wavefronts. Additionally, probing data streams are embedded and linked via some of the independent wavefronts. Aggregated data streams in sub-channels are unique linear combinations of all input data streams. Generating redundancy for stored or transported data are options in the WF muxing process. Post-processing via a wavefront de-multiplexer converts various sub-channel data streams back to the original data streams, utilizing the embedded known priori data streams as additional knowledge for reducing degrees of freedom to restore orthogonality or independency among multiple wavefronts.
摘要翻译：提出了一种多通道数据流程，利用波阵面多路复用技术在云端或配电网络中进行冗余数据存储和数据流传输。该处理功能包括通过包括卫星，无人机（UAV）在内的反应平台进行多媒体记录和数据通信的其他应用，以实现更好的生存性和更快速的访问。多个并发数据流由波前多路复用器预处理成多个子信道或波阵面分量，其中来自相应数据流的信号被复制到子信道中。这些复制的数据流通过独特的复合加权矢量（振幅和相位或其等同物）或“波前”链接，它们也通过各种空间独立的波前相关联。此外，探测数据流通过一些独立波前进行嵌入和链接。子通道中的聚合数据流是所有输入数据流的唯一线性组合。为存储或传输的数据生成冗余是WF多路复用过程中的选项。通过波前解复用器的后处理将各种子信道数据流转换回原始数据流，利用嵌入的已知先验数据流作为减少自由度以恢复多个波前之间的正交性或独立性的附加知识。

20. 发明申请

US20150032706A1 Enveloping for Cloud Computing via Wavefront Muxing 审中-公开
公开(公告)号：US20150032706A1
公开(公告)日：2015-01-29
申请号：US14512959
申请日：2014-10-13
申请人： Donald C.D. Chang , Juo-Yu Lee
发明人： Donald C.D. Chang , Juo-Yu Lee
IPC分类号： G06F17/30 , H04L29/08 , H04L29/06
CPC分类号： H04N1/00244 , H04N2201/3246
摘要： Data files with digital envelops may be used for many new applications for cloud computing. The new applications include games and entertainments such as digital fortune cookies, and treasure hunting, unique techniques for digital right management, or even additional privacy and survivability on data storage and transport on cloud computing. Wavefront multiplexing/demultiplexing process (WF muxing/demuxing) embodying an architecture that utilizes multi-dimensional waveforms has found applications in data storage and transport on cloud. Multiple data sets are preprocessed by WF muxing before stored/transported. WF muxed data is aggregated data from multiple data sets that have been “customized processed” and disassembled into any scalable number of sets of processed data, with each set being stored on a storage site. The original data is reassembled via WF demuxing after retrieving a lesser but scalable number of WF muxed data sets. A customized set of WF muxing on multiple digital files as inputs including at least a data message file and a selected digital envelop file, is configured to guarantee at least one of the multiple outputs comprising a weighted sum of all inputs with an appearance to human natural sensors substantially identical to the appearance of the selected digital envelop in a same image, video or audio format. Enveloping processing is a subset of WF muxing processing. The output file is the file with enveloped or embedded messages. The embedded message may be reconstituted by a corresponding WF demuxing processor at destination with the known a priori information of the original digital envelope. In short, digital enveloping/de-enveloping can be implemented via WF muxing and demuxing formulations. WF muxed data featured enhanced privacy and redundancy in data transport and storage on cloud. On the other hand, data enveloping is an application in an opposite direction for conventional WF muxing applications as far as redundancy is concerned. Enveloped data are intended only for limited receivers who has access to associated digital envelope data files with enhanced privacy for no or minimized redundancy.

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