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1. 发明授权

US07190711B2 Linear search system and method for determining Psuedo-Noise (PN) composite phase 有权
标题翻译：线性搜索系统和确定Psuedo-Noise（PN）复合相位的方法
公开(公告)号：US07190711B2
公开(公告)日：2007-03-13
申请号：US10242146
申请日：2002-09-11
申请人： Merle L. Keller , Vaughn L. Mower , Dale D. Fonnesbeck
发明人： Merle L. Keller , Vaughn L. Mower , Dale D. Fonnesbeck
IPC分类号： H04B1/00
CPC分类号： H04B1/70752 , H04B2201/70715
摘要： A method and system for determining Psuedo-Noise (PN) composite phase is provided. The method includes providing at least three relatively prime PN component codes and partially correlating a received PN composite encoded signal with one of the PN component codes. The method also includes partially correlating the received PN composite encoded signal with a second one of the PN component codes while maintaining phase alignment of the first partially phase aligned PN code through the use of normalized autonomous phase numbers (NAPNs). The received PN composite encoded signal is then phase aligned with a receiver PN composite code phase in steps of epoch lengths of the partially phase aligned PN component codes.
摘要翻译：提供了一种用于确定Psuedo-Noise（PN）复合相位的方法和系统。该方法包括提供至少三个相对主要的PN分量代码，并将接收到的PN复合编码信号与PN分量代码之一部分相关。该方法还包括通过使用归一化自主相位数（NAPN）来将接收的PN复合编码信号与PN分量代码中的第二个部分相关，同时保持第一部分相位对准PN码的相位对准。然后接收的PN复合编码信号与接收机PN复合码相位相位，其阶段是部分相位对准的PN分量代码的时期。

2. 发明授权

US5303260A Method and circuit for compensating for oscillator drift in a spread-spectrum communication system 失效
标题翻译：用于补偿扩频通信系统中振荡器漂移的方法和电路
公开(公告)号：US5303260A
公开(公告)日：1994-04-12
申请号：US1356
申请日：1993-01-06
申请人： Dale D. Fonnesbeck , Vaughn L. Mower
发明人： Dale D. Fonnesbeck , Vaughn L. Mower
IPC分类号： H04B1/707 , H04J13/00 , H04L9/00
CPC分类号： H04B1/707 , H04J13/00
摘要： The present invention applies in a communication system where - a) two vehicles V.sub.A and V.sub.B transmit data to each other intermittently, b) data transmitted from V.sub.A to V.sub.B is modulated in V.sub.A by a PN code PN.sub.1 having a time varying phase .phi..sub.MA and is correlated in V.sub.B by the code PN.sub.1 having a different time varying phase .phi..sub.CB, and c) data transmitted from V.sub.B to V.sub.A is modulated in V.sub.B by a PN code PN.sub.2 having a time varying phase .phi..sub.MB and is correlated in V.sub.A by the code PN.sub.2 having a different time varying phase .phi..sub.CA. With the present invention, the codes PN.sub.1 and PN.sub.2 can have respective nominal frequencies f.sub.1 =1/T.sub.1 and f.sub.2 =1/T.sub.2 that drift in at least one of the vehicles. This drift, is then compensated for by the present invention by sensing, during the data transmissions, the phase shifts .DELTA..phi..sub.MA, .DELTA..phi..sub.MB and .DELTA..phi..sub.CB which respectively occur in said PN codes over a time interval .DELTA.T.sub.X ; calculating a drift rate DR from the sensed phase shifts; measuring a time interval .DELTA.T.sub.Y during which data transmission between V.sub.A and V.sub.B are stopped; and thereafter, compensating for drift before re-establishing data transmissions by phase shifting, in one of the vehicles, code PN.sub.1 by an amount proportional to (DR) (.DELTA.T.sub.Y).
摘要翻译：本发明应用于以下通信系统中：a）两个车辆VA和VB间歇地彼此发送数据，b）从VA向VB发送的数据通过具有时变相位（phi）MA的PN码PN1在VA中调制并且在VB中通过具有不同时变相位（phi）CB的代码PN1相关，并且c）从VB被传输到VA的数据在VB中被具有时变相位（phi）MB的PN码PN2调制并且被相关在具有不同时变相位（phi）CA的代码PN2的VA中。利用本发明，代码PN1和PN2可以具有在至少一个车辆中漂移的各自的标称频率f1 = 1 / T1和f2 = 1 / T2。然后，本发明通过在数据传输期间感测分别出现在所述数据传输中的相移（Delta）（phi）MA，（Delta）（phi）MB和（Delta）（phi） PN码在时间间隔（Delta）TX; 从感测到的相移计算漂移率DR; 测量VA和VB之间的数据传输停止的时间间隔（Delta）TY; 之后，通过在车辆中的一个车辆中，通过相移（DP）与（DR）（（Delta）TY）成比例的量的相移来重新建立数据传输之前的漂移。

3. 发明授权

US08102897B1 Direct sequence spread spectrum system and method with plural chipping rates 有权
标题翻译：直接序列扩频系统和方法具有多个切片率
公开(公告)号：US08102897B1
公开(公告)日：2012-01-24
申请号：US12361128
申请日：2009-01-28
申请人： Vaughn L. Mower , Merle L. Keller , Kent R. Bruening
发明人： Vaughn L. Mower , Merle L. Keller , Kent R. Bruening
IPC分类号： H04B1/69
CPC分类号： H04B1/707 , H04B2201/70703
摘要： Direct sequence spread spectrum communications can use composite codes and can operate at a plurality of different chipping rates. The composite codes can be formed using a plurality of component codes, wherein the component codes can be relatively prime and at least one of the nominal lengths of the component codes can include a plurality of prime number multiplicands. The chipping rate and code length can be reduced by dividing a master rate by one or more of the prime number multiplicands. Symbol timing and time division multiple access timing can be tied to epochs of the component codes.
摘要翻译：直接序列扩频通信可以使用复合码，并可以以多种不同的码片速率进行操作。可以使用多个分量代码来形成复合码，其中分量码可以是相对素数，并且分量码的标称长度中的至少一个可以包括多个素数被乘数。可以通过将主速率除以一个或多个素数被乘数来减少码片速率和码长。符号定时和时分多址定时可以与组件代码的时代相关联。

4. 发明授权

US5204875A 4-ary correlator, matched filter, and decoder for coherent, direct sequence, spread spectrum applications 失效
标题翻译： 4位相关器，匹配滤波器和解码器，用于相干，直接序列，扩频应用
公开(公告)号：US5204875A
公开(公告)日：1993-04-20
申请号：US728906
申请日：1991-07-09
申请人： Vaughn L. Mower , Merle L. Keller
发明人： Vaughn L. Mower , Merle L. Keller
IPC分类号： H04B1/707 , H04B1/709
CPC分类号： H04B1/709 , H04B1/707
摘要： A system for decoding an IF signal modulated with 4-ary words generated at a known spreading rate (PN code) comprises a receiver in which four known 4-ary words are generated at the same rate. The system then compares the incoming signals modulated with unknown 4-ary words with each of four known 4-ary words. Only one of the known words will be in phase with a received unknown word. The disclosure describes a system which determines which of the four words is in phase, this being the determinant of the identity of the unknown word.
摘要翻译：用以已知扩展速率（PN码）生成的4元字调制的IF信号进行解码的系统包括一个接收机，其中以相同的速率产生四个已知的4进制字。然后，该系统将用未知的4个字进行调制的输入信号与四个已知的四元字中的每一个进行比较。只有一个已知的字将与接收到的未知字相同步。本公开描述了一种系统，其确定四个字中的哪一个是同相的，这是未知字的身份的决定因素。

5. 发明授权

US08391334B1 Communications reliability in a hub-spoke communications system 有权
标题翻译：集线器辐射通信系统中的通信可靠性
公开(公告)号：US08391334B1
公开(公告)日：2013-03-05
申请号：US12891048
申请日：2010-09-27
申请人： Vaughn L. Mower , Merle L. Keller , Roger Baker
发明人： Vaughn L. Mower , Merle L. Keller , Roger Baker
IPC分类号： H04B1/00 , H04W72/00
CPC分类号： H04B7/04 , H04B7/10
摘要： Systems and methods for improving the reliability of a hub-spoke communications system use a first antenna and a second antenna at the hub terminal. Spread spectrum transmission from the hub terminal uses the first antenna, and the second antenna is enabled when blockage between the first antenna and any one of the spoke terminals is present. The first antenna and the second antenna have substantially orthogonal polarizations. The spread spectrum transmissions from the first antenna and second antenna have different pseudonoise code timing so that the received transmissions are offset by at least one chip interval from each other.
摘要翻译：用于提高集线器辐条通信系统的可靠性的系统和方法在集线器终端处使用第一天线和第二天线。来自集线器终端的扩频传输使用第一天线，并且当存在第一天线和任何一个辐条终端之间的阻塞时，使能第二天线。第一天线和第二天线具有基本正交的极化。来自第一天线和第二天线的扩展频谱传输具有不同的伪噪声码定时，使得所接收的传输彼此相隔至少一个码片间隔。

6. 发明授权

US07639725B1 System and method for multi-phase composite PN code generation 有权
标题翻译：用于多相复合PN码生成的系统和方法
公开(公告)号：US07639725B1
公开(公告)日：2009-12-29
申请号：US10811006
申请日：2004-03-26
申请人： Michael L. Wilson , Merle L. Keller , Vaughn L. Mower , Kent R. Bruening
发明人： Michael L. Wilson , Merle L. Keller , Vaughn L. Mower , Kent R. Bruening
IPC分类号： H04B1/69 , H04B1/707
CPC分类号： H04J13/00 , H04J13/0022 , H04J13/10
摘要： A phase division multiple access (PDMA) system is provided. The PDMA system includes at least one receiver logic combiner adapted to generate a plurality of composite PN codes. Each of the plurality of composite PN codes are derived from a common composite PN code and are separated by a predetermined PN phase.
摘要翻译：提供了相分多址（PDMA）系统。 PDMA系统包括适于生成多个复合PN码的至少一个接收机逻辑组合器。多个复合PN码中的每一个从公共复合PN码导出，并被预定的PN相分离。

7. 发明授权

US07065127B2 System and method for generating and acquiring pseudo-noise (PN) spread signals 有权
公开(公告)号：US07065127B2
公开(公告)日：2006-06-20
申请号：US10058669
申请日：2002-01-28
申请人： Merle L. Keller , Vaughn L. Mower , Kent R. Bruening
发明人： Merle L. Keller , Vaughn L. Mower , Kent R. Bruening
IPC分类号： H04B1/69 , H04B1/707
CPC分类号： H04J13/107 , H04B1/707 , H04J13/0022
摘要： A system for generating (PN) spread signals is provided. The system includes a first clock synchronized with a second clock and at least three first pseudo-noise (PN) component code generators coupled to the first clock. A logic combiner is coupled to the PN component code generators and is adapted to generate a composite PN code. Both clocks are coupled to respective N-bit and M-bit counters.

8. 发明授权

US08446931B1 Chip timing synchronization for link that transitions between clear and spread modes 失效
标题翻译：用于在清除模式和扩展模式之间转换的链路的芯片定时同步
公开(公告)号：US08446931B1
公开(公告)日：2013-05-21
申请号：US13089833
申请日：2011-04-19
申请人： Merle L. Keller, Jr. , Vaughn L. Mower , Steve J. McEntire , Kent R. Bruening
发明人： Merle L. Keller, Jr. , Vaughn L. Mower , Steve J. McEntire , Kent R. Bruening
IPC分类号： H04B1/00
CPC分类号： H04B1/7073
摘要： Synchronization of a primary link which transitions between clear mode and spread mode is achieved and maintained using a secondary link. When transitioning from clear mode to spread mode, a primary transmission delta phase is adjusted by the difference between a secondary reception delta phase and the primary transmission delta phase; and a primary reception delta phase is adjusted to be equal to a secondary transmission delta phase.
摘要翻译：使用次级链路实现和维护在清除模式和扩展模式之间转换的主链路的同步。当从清除模式转换到扩展模式时，通过次级接收增量相位和初级传输增量相位之间的差异来调整初级传输增量相位; 并且主接收增量相位被调整为等于次级传输增量相位。

9. 发明授权

US07221665B1 System and method for PN encoded signal prioritization and collision mitigation 有权
标题翻译：用于PN编码信号优先级和碰撞缓解的系统和方法
公开(公告)号：US07221665B1
公开(公告)日：2007-05-22
申请号：US10458430
申请日：2003-06-09
申请人： Vaughn L. Mower , Merle L. Keller
发明人： Vaughn L. Mower , Merle L. Keller
IPC分类号： H04B7/216
CPC分类号： H04B1/707 , H04B1/7117 , H04B1/712 , H04B2201/70715
摘要： A system for TDMA-SS signal prioritization and collision mitigation is provided. The system includes a Hub transceiver having plurality of parallel PN correlation branches, wherein each of the plurality of parallel PN correlation branches is prioritized with respect to each of the other plurality of parallel PN correlation branches. The system also includes a first Spoke transmitter adapted to transmit a first prioritized PN encoded signal corresponding to a first one of the first plurality of prioritized parallel PN correlation branches. In addition, a second Spoke transmitter is adapted to transmit a second prioritized PN encoded signal corresponding to a second one of the first plurality of prioritized parallel PN correlation branches.
摘要翻译：提供了一种用于TDMA-SS信号优先级和冲突缓解的系统。该系统包括具有多个并行PN相关分支的集线器收发器，其中多个并行PN相关分支中的每一个相对于其他多个并行PN相关分支中的每一个优先化。该系统还包括适于发送与第一多个优先级并行PN相关分支中的第一个对应的第一优先PN编码信号的第一Spoke发射机。另外，第二Spoke发送器适于发送对应于第一多个优先并行PN相关分支中的第二个的第二优先化PN编码信号。

10. 发明授权

US07167504B1 System and method for fast data rate discovery from PN codes 有权
标题翻译：用于从PN码快速发现数据速率的系统和方法
公开(公告)号：US07167504B1
公开(公告)日：2007-01-23
申请号：US10352295
申请日：2003-01-27
申请人： Vaughn L. Mower , Merle L. Keller , Kent R. Bruening , Steve J. McEntire
发明人： Vaughn L. Mower , Merle L. Keller , Kent R. Bruening , Steve J. McEntire
IPC分类号： H04B1/00
CPC分类号： H04J13/10 , H04B1/707 , H04B1/70735 , H04B2201/70705 , H04J13/0022
摘要： This invention generates pseudo-noise (PN) codes that map a transmitted data rate into the PN code structure. This invention further then acquires the PN code to automatically discover the transmitted data rate. This invention is operable with communication systems that utilize GPS time synchronization of the transmitted and received PN codes, as well as with communication systems where GPS time synchronization is not available. A method and a system are disclosed to transmit a modulated signal from a transmitter to a receiver, where the modulated signal has a data rate. The method includes selecting, to represent the data rate, at least one PN component code from a set of PN component codes. The PN component code is a constituent code of a composite PN code comprised of a plurality of PN component codes. The selected PN component code is one that phase aligns with a PN composite encoded signal. The method further includes modulating the signal to be transmitted using the PN composite code that includes the selected PN component code, receiving the modulated signal, demodulating the received signal using a demodulation process and discovering the data rate during the demodulation process. The demodulation process includes generating instances of a plurality of PN component codes, and correlating the received modulated signal either sequentially or in parallel with the instances of the PN component codes.
摘要翻译：本发明产生将发送的数据速率映射到PN码结构的伪噪声（PN）码。本发明还获得PN码以自动发现所发送的数据速率。本发明可利用利用发送和接收的PN码的GPS时间同步的通信系统以及GPS时间同步不可用的通信系统。公开了一种将调制信号从发射机发射到接收机的方法和系统，其中调制信号具有数据速率。该方法包括从一组PN分量代码中选择表示数据速率的至少一个PN分量代码。 PN分量代码是由多个PN分量代码组成的复合PN代码的组成代码。选择的PN分量代码是与PN复合编码信号相位相位的代码。该方法还包括使用包括所选择的PN分量码的PN复合码来调制要发送的信号，接收调制信号，使用解调处理解调接收的信号，并在解调过程中发现数据速率。解调过程包括产生多个PN分量代码的实例，并且将接收到的调制信号顺序地或与PN分量代码的实例并行地相关联。

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