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.

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。

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.

公开(公告)号：US20170201339A1

公开(公告)日：2017-07-13

申请号：US14993397

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： H04J3/02 ,  H04L29/06 ,  H04L29/08

CPC分类号： H04L63/04 ,  G06F21/6245 ,  H04L27/00 ,  H04L65/607

摘要： Enveloping techniques using incoherent wavefront multiplexing (WF muxing or K-muxing) will enhance privacy protection on data communications. The disclosure relates to methods and architectures of packing or enveloping data using WF muxing, or K-muxing, for information transport via multiple communication links such as concurrently via multiple satellites, airborne platforms, wireless terrestrial links, and/or other wireless links. The multi-link communications may include the use of cloud transport of multiple WF-muxed data packages. It is focused to appearance of a digital envelop and reliability of enclosed data. The K-muxing on information digital streams before modulation in a transmitter shall provide enhanced data privacy and better availability. The WF multiplexed (WF muxed or K-muxed) information data streams will be individually and concurrently sent to the multiple links accordingly for data transport. The corresponding WF demuxing or K-demuxing will be performed on received K-muxed information digital stream after demodulation in a receiver. The terms of information data or digital information streams are used to differentiate them from those of data signals or digital signal streams. In a transmission, information data usually will be modulated by modulators and converted into data signals before being transmitted. Similarly in a receiver, a received digital signal stream is demodulated by a demodulator and become a digital information stream. The incoherent K-muxing and K-demuxing will be used for processing information data or digital information streams for the benefits of enhanced privacy and better availability. On the other hand, the coherent K-muxing and K-demuxing for processing data signals or digital signal streams will be used for power combining and/or dynamic resource allocations for communications channels.

公开(公告)号：US20150358071A1

公开(公告)日：2015-12-10

申请号：US14793684

申请日：2015-07-07

申请人： Donald C.D. Chang ,  Juo-Yu Lee

发明人： Donald C.D. Chang ,  Juo-Yu Lee

IPC分类号： H04B7/185 ,  H04B7/04 ,  H04B7/06

CPC分类号： H04B7/18506 ,  H04B7/18504

摘要： This invention takes advantages of common coverage areas of two groups of concurrent shaped fan beams in a field-of-view by both clusters of multiple flying UAVs to function as two linear arras on sky as parts of embodiments of this invention. It shows two information data sets of transmitted signals to two groups of users independently are preprocessed by a wavefront multiplexing (WF muxing) transformation before uploaded to the linear arrays on sky. Only users in the common coverage areas can access to both WF Muxed data streams delivered by the two independent arrays in sky and thus are capable to reconstitute the two information data sets. Examples with a shaped fan beam by a first platform (Fa) with 4 flying UAVs to form a fan beam over a ground coverage elongated in a NS direction. The linear array in the first platform delivers a first aggregated information associated with K1(t)=A(t)+S(t) from a ground control facility. K1(t)=A(t)+S(t) is a first WF-Muxed data set as a first outputs of a preprocessor or WF muxing transformation from two inputs A(t) and S(t). The WF muxing features a 2-to-2 Hadamard transformation. Similarly K2(t)=A(t)−S(t), a second WF-Muxed data set as a second outputs of the preprocessor or WF muxing transformation from two inputs A(t) and S(t), will be deliver to users in the common coverage areas another shaped fan beam elongated in a EW direction over a ground coverage by a second platform (Fb) with another set of 4 flying UAVs. Only users in the common coverage areas can access both K1(t) and K2(t), and recover A(t) and S(t). Furthermore, A(t) and S(t) may be related as two segmented substreams of an original information data set AS(t). This multipath transport concept can be expanded to N arrays in sky (where N>2) with N WF-Muxed data streams generated from M information data sets, where N≧M. As a result, the users in the common coverage areas may only need to receive M of the N WF-Muxed data streams to reconstitute the original M information data sets.

公开(公告)号：US20170078501A1

公开(公告)日：2017-03-16

申请号：US14935319

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： H04N1/00 ,  G06F3/12 ,  H04L29/08

CPC分类号： H04N1/00307 ,  G06F3/1222 ,  G06F3/1248 ,  G06F3/1292 ,  H04L67/10 ,  H04N1/00108

摘要： Presented are cloud storage architectures for private data of scanned documents uploaded from smart phone 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 data in multiple data storages linking to said second data sets at said uploading site. In accordance with an embodiment of present invention post processing may comprise recovering said second data sets at a downloading site via IP network.

摘要翻译： 提供云端存储架构，用于从具有增强的数据隐私和生存能力的终端之间从智能手机上传的扫描文档的私人数据。 在IP云中存储数据的预处理包括：在上载站点将多个第一数据集合变换成多个第二数据集，其中所述第二数据集之一包括所述第一数据集的加权和; 通过IP连接将所述第二数据集存储在IP云中; 以及将数据存储在与所述上载站点处的所述第二数据集相关联的多个数据存储器中。 根据本发明的实施例，后处理可以包括经由IP网络在下载站点处恢复所述第二数据集。

公开(公告)号：US20150040184A1

公开(公告)日：2015-02-05

申请号：US14517717

申请日：2014-10-17

申请人： Donald C.D. Chang ,  Juo-Yu Lee ,  Jeffrey C. Chang ,  Steve K. Chen

发明人： Donald C.D. Chang ,  Juo-Yu Lee ,  Jeffrey C. Chang ,  Steve K. Chen

IPC分类号： G06F21/62 ,  H04L29/06

CPC分类号： G06F21/6209 ,  G06F21/6245 ,  H04L65/4084 ,  H04L65/602 ,  H04L65/604 ,  H04L65/607

摘要： Data files with digital envelops are used (1) for embedded identifiers for digital right management (DRM), and (2) as means delivering additional data or new information via repeated re-broadcasting process by many broadcasting service providers. The new DRM applications offer additional privacy and survivability while data is in storage and/or transported on cloud. 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. 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 in a different application domain from most of WF muxing applications as far as redundancy is concerned. Enveloped data is intended only for limited receivers who has access to associated digital enveloped data files with enhanced privacy for no or minimized redundancy.

公开(公告)号：US20150009892A1

公开(公告)日：2015-01-08

申请号：US14288707

申请日：2014-05-28

申请人： Donald C.D. Chang ,  Juo-Yu Lee

发明人： Donald C.D. Chang ,  Juo-Yu Lee

IPC分类号： H04B7/04 ,  H04W16/28

CPC分类号： H04B7/0452 ,  H04B7/15535 ,  H04W16/28

摘要： Embodiments of a communications system with multiple active scattering devices to service multiple users either indoor or outdoor over same spectrum in a communication network and a method for the system are generally described herein. Signals streams for transmission to users in spoke-and-hub configurations will utilize multiple active scattering devices. Three categories of operational concepts are presented: (1) multiple scattering devices arranged geometrically bundled together to function as active mirrors or retro-directive repeaters, (2) distributed man-made scattering devices placed to enhance channel bandwidth in between a hub and a common service area via frequency re-use, and (3) organizing distributed active scattering devices by remote beamforming for servicing a small common coverage area indoor or outdoor with enhanced bandwidth. All three techniques are for service with enhanced bandwidth and angular resolutions via frequency reuse, and extended service range via coherent operations of scattering devices.

摘要翻译： 在此通常描述具有多个主动散射装置的通信系统的实施例，其用于在通信网络中的同一频谱上的室内或室外服务多个用户以及该系统的方法。 用于传输到辐射和轮毂配置中的用户的信号流将使用多个主动散射设备。 提出了三类操作概念：（1）多个散射装置，几何组合在一起，用作主动反射镜或反向指示中继器，（2）分布式人造散射装置，用于增强集线器与公共端之间的通道带宽 服务区域，以及（3）通过远程波束成形组织分布式主动散射设备，为室内或室外小型公共覆盖区域提供增强带宽。 所有这三种技术都是通过频率重用提供增强带宽和角度分辨率的服务，以及通过散射设备的相干操作实现的扩展服务范围。

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.

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。