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1. 发明申请

US20120028572A1 Polarization Re-alignment for Mobile Satellite Terminals 有权
标题翻译：移动卫星终端的极化重新对准
公开(公告)号：US20120028572A1
公开(公告)日：2012-02-02
申请号：US12847997
申请日：2010-07-30
申请人： Frank Lu , Donald C.D. Chang , Yulan Sun
发明人： Frank Lu , Donald C.D. Chang , Yulan Sun
IPC分类号： H04W84/06
CPC分类号： H04B7/1853 , H01Q3/24 , H01Q9/0407 , H01Q21/245 , H04B7/0617 , H04J14/06 , H04L5/005 , H04L5/026 , H04W24/02 , H04W72/0446
摘要： A system for allowing ground terminals, specifically mobile ground terminals, to dynamically and electronically realign signal polarizations to match that of incoming and outgoing signal polarizations from designated space assets, specifically communications from satellites, comprising an adaptive re-orientation technique based on a cost minimization function, and a means of direct calculations of weighting components based on the knowledge of the orientation and bearing of both the satellites and the ground terminals. The embodiment will allow a mobile ground terminal to electronically realign itself to the signals of a satellite, without the need for mechanical processes to physically re-orient the antenna array.
摘要翻译：一种用于允许接地终端，特别是移动接地终端动态地和电子地重新调整信号偏振以匹配来自指定空间资产的进入和输出信号偏振的系统，特别是来自卫星的通信的系统，其包括基于成本最小化的自适应重定向技术功能以及基于卫星和地面终端的方位和方位知识直接计算加权分量的手段。该实施例将允许移动接地终端电子地重新对准卫星的信号，而不需要机械过程来物理地重新定向天线阵列。

2. 发明申请

US20170201339A1 Enveloping for Multilink Communications 审中-公开
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.

3. 发明申请

US20150358071A1 Data transport privacy and redundancy via small UAVs in cooperation 有权
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.

4. 发明申请

US20140022984A1 FLEXIBLE MULTI-CHANNEL AMPLIFIERS VIA WAVEFRONT MUXING TECHNIQUES 有权
标题翻译：通过WAVEFRON多路复用技术的灵活多通道放大器
公开(公告)号：US20140022984A1
公开(公告)日：2014-01-23
申请号：US14038813
申请日：2013-09-27
申请人： Donald C.D. Chang
发明人： Donald C.D. Chang
IPC分类号： H04B7/185
CPC分类号： H04B7/18515 , H03F1/0277 , H03F1/3247 , H03F1/3258 , H03F3/211 , H03F3/24 , H03F3/68 , H03F3/72 , H03F2201/3212 , H03F2203/21106 , H03F2203/21109 , H03F2203/21136 , H03F2203/21145 , H03F2203/21175 , H03F2203/7215 , H03F2203/7224 , H03F2203/7236
摘要： This invention aims to present a smart and dynamic power amplifier module that features both power combining and power sharing capabilities. The proposed flexible power amplifier (PA) module consists of a pre-processor, N PAs, and a post-processor. The pre-processor is an M-to-N wavefront (WF) multiplexer (muxer), while the post processor is a N-to-M WF de-multiplexer (demuxer), where N≧M≧2. Multiple independent signals can be concurrently amplified by a proposed multi-channel PA module with a fixed total power output, while individual signal channel outputs feature different power intensities with no signal couplings among the individual signals. In addition to basic configurations, some modules can be configured to feature both functions of parallel power amplifiers and also as M-to-M switches. Other programmable features include configurations of power combining and power redistribution functions with a prescribed amplitude and phase distributions, as well as high power PA with a linearizer.
摘要翻译：本发明旨在提出具有功率组合和功率共享功能的智能和动态功率放大器模块。所提出的灵活功率放大器（PA）模块由预处理器，N PA和后处理器组成。预处理器是M到N波前（WF）多路复用器（muxer），而后处理器是N到M WF去多路复用器（demuxer），其中N> = M> = 2。多个独立信号可以由具有固定总功率输出的所提出的多通道PA模块同时放大，而单独的信号通道输出具有不同的功率强度，在各个信号之间没有信号耦合。除基本配置外，一些模块可配置为兼容并行功率放大器的功能以及M-to-M开关。其他可编程功能包括具有规定幅度和相位分布的功率组合和功率再分配功能的配置，以及具有线性化器的高功率PA。

5. 发明申请

US20130302034A1 ACCESSING LP TRANSPONDERS WITH CP TERMINALS VIA WAVEFRONT MULTIPLEXING TECHNIQUES 有权
标题翻译：通过WAVEFRONT多路复用技术访问带有CP终端的LP传输器
公开(公告)号：US20130302034A1
公开(公告)日：2013-11-14
申请号：US13938266
申请日：2013-07-10
申请人： Donald C.D. Chang
发明人： Donald C.D. Chang
IPC分类号： H04J14/06
CPC分类号： H04B7/1853 , H01Q3/24 , H01Q9/0407 , H01Q21/245 , H04B7/0617 , H04J14/06 , H04L5/005 , H04L5/026 , H04W24/02 , H04W72/0446
摘要： The invention is about a method and apparatus for grouping multiple satellite transponders with both (LP) polarization formats in different frequencies through Wave-Front (WF) Multiplexing (muxing) techniques for ground terminals with incompatible (CP) polarization formats. As a result of this invention, linear polarized (LP) transponders can be accessed and efficiently utilized by circularly polarized (CP) ground terminals and vice versa. This invention consists of conventional ground terminals, a unique organization of space assets, and a unique polarization alignment processor. The applications of wavefront multiplexing techniques to satellite communications offer many potential advantages, including improved flexibility and utility efficiency of existing space assets. Our proposed “Polarization Utility Waveforms” is an entirely new concept in VSAT and Earth Station Antenna diversity. The implementation enables antennas to switch between different polarization formats at the press of a button, and provides teleport operators with greater flexibility in how they manage their assets.
摘要翻译：本发明涉及一种用于通过用于具有不兼容（CP）偏振格式的接地终端的波前（WF）复用（多路复用）技术将具有两种（LP）极化格式的多个卫星应答器分组在不同频率中的方法和装置。作为本发明的结果，可以通过圆极化（CP）接地端子访问并有效地利用线性极化（LP）应答器，反之亦然。本发明由传统的接地终端，空间资产的独特组织和独特的极化对准处理器组成。波前复用技术在卫星通信中的应用提供了许多潜在的优势，包括提高现有空间资产的灵活性和效用效率。我们提出的“极化效用波形”是VSAT和地球站天线多样性的全新概念。该实施使得天线能够在按下按钮的同时在不同的极化格式之间切换，并且为远程运营商提供如何管理其资产的更大的灵活性。

6. 发明申请

US20120026054A1 Compact Patch Antenna Array 有权
标题翻译：紧凑型天线阵列
公开(公告)号：US20120026054A1
公开(公告)日：2012-02-02
申请号：US12847941
申请日：2010-07-30
申请人： Yuanchang Liu , Donald C.D. Chang
发明人： Yuanchang Liu , Donald C.D. Chang
IPC分类号： H01Q21/08 , H01Q1/38
CPC分类号： H01Q21/065 , H01Q1/243 , H01Q21/0075 , H01Q21/20
摘要： A compact patch antenna array for mobile terminal applications comprising: a plurality of radiators mounted on one surface of a dielectric, with a ground plane being mounted on the other side of the dielectric. Beneath the ground plane, another dielectric with feeding network is placed. Other embodiments are described and shown in FIG. 2.
摘要翻译：一种用于移动终端应用的紧凑型贴片天线阵列，包括：安装在电介质的一个表面上的多个散热器，其中接地平面安装在电介质的另一侧上。在地平面下方放置另一个带馈电网络的电介质。在图1中描述和示出了其它实施例。 2。

7. 发明授权

US5903549A Ground based beam forming utilizing synchronized code division multiplexing 失效
标题翻译：利用同步码分复用的基于地面的波束形成
公开(公告)号：US5903549A
公开(公告)日：1999-05-11
申请号：US803934
申请日：1997-02-21
申请人： Urban A. von der Embse , Ken Yu Huang , Donald C.D. Chang , William W. Mayfield
发明人： Urban A. von der Embse , Ken Yu Huang , Donald C.D. Chang , William W. Mayfield
IPC分类号： H04B7/216 , H04B7/00 , H04B7/185
CPC分类号： H04B7/2041 , H04B7/216
摘要： A method permitting beam forming at a ground station for providing a coherent and stable uplink signal to a satellite system employing multiple spot beams by combining orthogonal synchronous code division multiplex codes and pseudo-random spreading codes with an information signal to implement a satellite feeder uplink.
摘要翻译：一种允许在地面站波束形成的方法，用于通过组合正交同步码分多路复用码和伪随机扩展码与信号信号组合使用多个点波束的卫星系统提供相干稳定的上行链路信号，以实现卫星馈线上行链路。

8. 发明申请

US20170078501A1 Mobile Scanner via Private Data on Cloud 有权
标题翻译：移动扫描器通过云端的私有数据
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。

9. 发明申请

US20150040184A1 Digital Enveloping for Digital Right Management and Re-broadcasting 审中-公开
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.

10. 发明申请

US20140161025A1 DYNAMIC POWER ALLOCATIONS FOR DIRECT BROADCASTING SATELLITE (DBS) CHANNELS VIA WAVEFRONT MULTIPLEXING 有权
标题翻译：通过WAVEFRONT多路复用直接广播卫星（DBS）频道的动态功率分配
公开(公告)号：US20140161025A1
公开(公告)日：2014-06-12
申请号：US14010546
申请日：2013-08-27
申请人： Donald C.D. Chang
发明人： Donald C.D. Chang
IPC分类号： H04B7/185
CPC分类号： H04B7/18515 , H04B7/0413 , H04B7/18517 , H04B7/18523 , H04B7/2041 , H04J14/00 , H04J14/005 , H04J14/08 , H04L25/03006
摘要： A direct broadcasting satellite (DBS) system features a capability of coherently combining amplified signals powers from various broadcasting transponders without modifying the satellite segment. Organized DBS transponders would function as an equivalent DBS transponder with a higher EIRP. Power allocations are via a mechanism in an uplink transmitter in a ground segment and power combining mechanisms are in user receivers in a user segment. Specifically, the transmitter generates mixtures of input signals by using Wavefront-Multiplexing and transmits wavefront-multiplexed (WFM) signals which are sent concurrently through multiple parallel channels of transponders in the satellite segment. A receiver in the user segment separates the mixtures of received amplified WFM signals and coherently combines amplified components by various transponders by adaptive equalizing and Wavefront De-Multiplexing processors. The WFM signal mixtures allow an operator, or automated system, at the transmitter to dynamically allocate the equivalent transponder powers according to continuously changing demands.
摘要翻译：直播卫星（DBS）系统具有将来自各种广播转发器的放大信号功率相干组合的能力，而不改变卫星段。有组织的DBS转发器将作为具有较高EIRP的等效DBS转发器。功率分配通过地面段中的上行链路发射机中的机制，并且功率合并机制在用户分段中的用户接收机中。具体地，发射机通过使用波前复用来产生输入信号的混合，并发送通过卫星段中的多个并发信道的并行信道同时发送的波前复用（WFM）信号。用户区段中的接收机将接收到的放大的WFM信号的混合分离，并通过自适应均衡和波前解复用处理器将各种应答器相干组合放大的分量。 WFM信号混合允许发射机上的操作员或自动化系统根据不断变化的需求动态分配等效的应答器功率。

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