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21. 发明申请

US20120286882A1 ELECTRONIC CIRCUITRY 有权
标题翻译：电子电路
公开(公告)号：US20120286882A1
公开(公告)日：2012-11-15
申请号：US13371373
申请日：2012-02-10
申请人： John Wood
发明人： John Wood
IPC分类号： H03B1/00
CPC分类号： H03K3/0322 , G06F1/10 , G06F1/12 , H01L2224/48091 , H01L2924/1305 , H01L2924/13091 , H03K3/0315 , H01L2924/00014 , H01L2924/00
摘要： Electronic circuitry comprising operational circuits of active switching type requiring timing signals, and conductive means for distributing said timing signals to the operational circuits, wherein the timing signal distribution means includes a signal path that has different phases of a drive signal are supplied via active means at different positions about the signal path where that path exhibits endless electro-magnetic continuity without signal phase inversion or has interconnections with another signal path having different substantially unidirectional signal flow where there is no endless electromagnetic continuity between those signal paths and generally has non-linear associated circuit means where the signal path is of a transmission line nature.
摘要翻译：包括需要定时信号的有源开关类型的操作电路的电子电路和用于将所述定时信号分配到操作电路的导电装置，其中定时信号分配装置包括具有驱动信号的不同相位的信号路径，关于信号路径的不同位置，其中该路径呈现无限的电磁连续性而没有信号相位反转，或者具有与具有不同的基本上单向信号流的另一个信号路径的互连，其中在那些信号路径之间没有无限的电磁连续性并且通常具有非线性关联电路意味着信号路径具有传输线性质。

22. 发明申请

US20120039366A1 TRUE TIME DELAY PHASE ARRAY RADAR USING ROTARY CLOCKS AND ELECTRONIC DELAY LINES 有权
标题翻译：使用旋转时钟和电子延迟线的真实时间延迟相位阵列雷达
公开(公告)号：US20120039366A1
公开(公告)日：2012-02-16
申请号：US11913377
申请日：2006-06-06
申请人： John Wood , Haris Basit
发明人： John Wood , Haris Basit
IPC分类号： H01Q21/00 , H03H11/26 , H04B1/40 , H03L7/24
CPC分类号： G01S7/03 , G01S13/0209 , G01S2007/403 , G01S2007/4034 , H01Q3/2694 , H01Q3/42
摘要： Local oscillator circuitry for an antenna array is disclosed. The circuitry includes an array of rotary traveling wave oscillators which are arranged in a pattern over an area and coupled so as to make them coherent. This provides for a set of phase synchronous local oscillators distributed over a large area. The array also includes a plurality of phase shifters each of which is connected to one of the rotary oscillators to provide a phase shifted local oscillator for the array. The phase shifter optionally includes a cycle counter that is configured to count cycles of the rotary oscillator to which it is connected and control circuitry that is then operative to provide a shifted rotary oscillator output based on the count from the cycle counter. A system and method for operating a true-time delay phased array antenna system. The system includes a plurality of antenna element circuits for driving or receiving an rf signal from the elements of the array. Each element circuit has a transmit and a receive path and a local multiphase oscillator, such as a rotary traveling wave oscillator. Each path has an analog delay line for providing a true-time delay for the antenna element. Preferably, the analog delay line is a charge coupled device whose control nodes are connected to phases of the local multiphase oscillator to implement a delay that is an integer number local multiphase oscillator periods. A fractional delay is also included in the path by using a sample and hold circuit connected to a particular phase of the oscillator. By delaying each antenna element by a true time delay, broadband operation of the array is possible.
摘要翻译：公开了用于天线阵列的本地振荡器电路。该电路包括旋转行波振荡器的阵列，它们被布置成一个区域上的图案并被耦合以使它们相干。这提供了分布在大面积上的一组相位同步本地振荡器。该阵列还包括多个移相器，每个移相器连接到一个旋转振荡器以提供阵列的相移本地振荡器。移相器可选地包括周期计数器，其被配置为对其连接的旋转振荡器的周期进行计数，然后控制电路可操作以基于来自周期计数器的计数提供移位的旋转振荡器输出。一种用于操作真时延迟相控阵天线系统的系统和方法。该系统包括用于从阵列的元件驱动或接收rf信号的多个天线元件电路。每个元件电路具有发射和接收路径以及本地多相振荡器，例如旋转行波振荡器。每个路径都有一个模拟延迟线，用于提供天线元件的真实时间延迟。优选地，模拟延迟线是电荷耦合器件，其控制节点连接到本地多相振荡器的相位，以实现作为整数局部多相振荡器周期的延迟。通过使用连接到振荡器的特定相位的采样和保持电路，路径中还包括分数延迟。通过将每个天线元件延迟真实的时间延迟，阵列的宽带操作是可能的。

23. 发明授权

US07971828B2 Aircraft fuel tank and inerting system therefor 有权
标题翻译：飞机燃油箱及其惰化系统
公开(公告)号：US07971828B2
公开(公告)日：2011-07-05
申请号：US10590716
申请日：2005-02-28
申请人： Alan Massey , John Wood , Dominic Ashton
发明人： Alan Massey , John Wood , Dominic Ashton
IPC分类号： B64D37/32
CPC分类号： A62C3/08 , A62B7/14 , A62C3/065 , B64D37/32 , Y10T137/0396
摘要： An inerting system for an aircraft fuel tank (10) uses an air separation device (12) to produce a supply of nitrogen-enriched air to replenish the fuel tank on consumption of fuel and to maintain the pressure difference across the walls of the tank (10) below design limits. The air separation device (12) provides substantially the whole of the mass of the gas required and so there is substantially no inward venting. This provides a substantially homogenous nitrogen content in the air in the tank (10).
摘要翻译：用于飞机燃料箱（10）的惰化系统使用空气分离装置（12）来产生富氮空气的供应，以在消耗燃料时补充燃料箱并且保持跨越罐的壁的压力差（ 10）设计限制以下。空气分离装置（12）基本上提供了所需气体的整体质量，因此基本上没有向内排气。这在罐（10）中的空气中提供基本均匀的氮含量。

24. 发明授权

US07812648B2 Frequency divider 有权
标题翻译：分频器
公开(公告)号：US07812648B2
公开(公告)日：2010-10-12
申请号：US11936008
申请日：2007-11-06
申请人： John Wood
发明人： John Wood
IPC分类号： H03B19/00
CPC分类号： H03L7/0995 , H03K23/54 , H03K23/546 , H03L7/0998
摘要： A frequency divider using a clock source with a plurality of phase signals of a multi-phase oscillator. In one version, the divider includes a plurality of spot-moving stages that are connected to form a ring. Spot-moving stages are stages that advance a one or a zero, while clearing the previous stage. Depending on the number of stages and the number of phases of the clock to advance a spot through all of the stages, a divider ratio is determined. In another embodiment, a plurality of latch elements is provided with a divided input and each is re-clocked with the phases of a multi-phase oscillator. The outputs of the latch elements are combined in a capacitor array to create the output waveform. An interpolator useful in conjunction with a frequency divider is also disclosed. When the interpolator is placed in the feedback path of a PLL, a fractional frequency multiplier/divider results.
摘要翻译：一种使用具有多相振荡器的多个相位信号的时钟源的分频器。在一个版本中，分隔器包括连接以形成环的多个点移动级。点移动阶段是在清除前一阶段的同时提升一个或零个阶段的阶段。根据阶段的数量和时钟的相位数，通过所有级进行点，确定分频比。在另一个实施例中，多个锁存元件设置有分割输入，并且每个锁存元件与多相振荡器的相位重新计时。锁存元件的输出被组合在电容器阵列中以产生输出波形。还公开了一种与分频器结合使用的内插器。当内插器放置在PLL的反馈路径中时，会产生分数倍频/分频。

25. 发明授权

US07764130B2 Electronic circuitry 有权
标题翻译：电子电路
公开(公告)号：US07764130B2
公开(公告)日：2010-07-27
申请号：US11010179
申请日：2004-12-09
申请人： John Wood
发明人： John Wood
IPC分类号： H03L7/24
CPC分类号： H03K3/0322 , G06F1/10 , G06F1/12 , H01L2224/48091 , H01L2924/1305 , H01L2924/13091 , H03K3/0315 , H01L2924/00014 , H01L2924/00
摘要： A clock distribution system that includes a length of two-conductor transmission line driven differentially at one end and terminated at the other end, a plurality of regeneration devices, and a plurality of regeneration device pairs. The two-conductor transmission line is arranged in a serpentine configuration with a number of locations at which portions of the transmission line come physically close to each other. The regeneration devices are located at various spaced-apart positions on the transmission line and operate to provide energy to a wave traveling on the transmission line. Each of the regeneration device pairs is connected between the transmission line portions that are physically close to each other so as to cause a traveling wave on adjacent portions of the line to have opposite phases.
摘要翻译：一种时钟分配系统，其包括在一端差分地驱动并在另一端终止的两导体传输线的长度，多个再生装置和多个再生装置对。双导体传输线布置成蛇形结构，其中多个位置传输线的部分物理上彼此靠近。再生装置位于传输线上的各个间隔开的位置上，并且操作以向在传输线上行进的波浪提供能量。每个再生装置对被连接在物理上彼此接近的传输线部分之间，以使得在相邻部分上的行波具有相反的相位。

26. 发明授权

US07675371B2 Electronic circuitry 有权
标题翻译：电子电路
公开(公告)号：US07675371B2
公开(公告)日：2010-03-09
申请号：US11198877
申请日：2005-08-05
申请人： John Wood
发明人： John Wood
IPC分类号： H03K3/03 , H01L23/66
CPC分类号： H03K3/0322 , G06F1/10 , G06F1/12 , H01L2224/48091 , H01L2924/1305 , H01L2924/13091 , H03K3/0315 , H01L2924/00014 , H01L2924/00
摘要： Electronic circuitry comprising operational circuits of active switching type requiring timing signals, and conductive means for distributing said timing signals to the operational circuits, wherein the timing signal distribution means includes a signal path that has different phases of a drive signal are supplied via active means at different positions about the signal path where that path exhibits endless electro-magnetic continuity without signal phase inversion or has interconnections with another signal path having different substantially unidirectional signal flow where there is no endless electromagnetic continuity between those signal paths and generally has non-linear associated circuit means where the signal path is of a transmission line nature.
摘要翻译：包括需要定时信号的有源开关类型的操作电路的电子电路和用于将所述定时信号分配到操作电路的导电装置，其中定时信号分配装置包括具有驱动信号的不同相位的信号路径，关于信号路径的不同位置，其中该路径呈现无限的电磁连续性而没有信号相位反转，或者具有与具有不同的基本上单向信号流的另一个信号路径的互连，其中在那些信号路径之间没有无限的电磁连续性并且通常具有非线性关联电路意味着信号路径具有传输线性质。

27. 发明授权

US07609756B2 Rotary clock flash analog to digital converter system and method 有权
标题翻译：旋转时钟闪存模拟数字转换器系统和方法
公开(公告)号：US07609756B2
公开(公告)日：2009-10-27
申请号：US12042322
申请日：2008-03-04
申请人： John Wood
发明人： John Wood
IPC分类号： H03M1/12
CPC分类号： H03M1/56 , G04F10/005 , H03M1/1215
摘要： System and method for converting an analog voltage to a digital signal. The system includes an input voltage sampler, a ramp generator, a comparator, a time-to-digital converter (TDC), and a multiphase oscillator, preferably a rotary traveling wave oscillator, that provides the critical system timing. The phases of the multiphase oscillator define a sampling interval during which the input voltage is sampled and held and a conversion interval during which the ramp generator, comparator, and TDC operate to convert the sampled voltage to the digital signal. The TDC samples at times provided by the phases of the multiphase oscillator to form the bits of the digital signal. The sampler, ramp generator, and comparator can be constructed from multiple fragments, one of which is selectable for calibration while the rest of the fragments are joined for normal operation. Multiple converters can be interleaved to increase the sampling rate.
摘要翻译：将模拟电压转换为数字信号的系统和方法。该系统包括提供关键系统时序的输入电压采样器，斜坡发生器，比较器，时间 - 数字转换器（TDC）以及多相振荡器，优选旋转行波振荡器。多相振荡器的相位定义了采样间隔，在该采样间隔期间，输入电压被采样和保持，以及斜坡发生器，比较器和TDC操作以将采样电压转换为数字信号的转换间隔。 TDC采样由多相振荡器的相位提供，以形成数字信号的位。采样器，斜坡发生器和比较器可以由多个片段构成，其中一个片段可选择进行校准，而其余片段被连接用于正常操作。可以交错多个转换器以增加采样率。

28. 发明申请

US20080010470A1 Tamper resistant module having separate control of issuance and content delivery 有权
标题翻译：防篡改模块具有单独的发行和内容交付控制
公开(公告)号：US20080010470A1
公开(公告)日：2008-01-10
申请号：US11821052
申请日：2007-06-20
申请人： Brian McKeon , John Wood , David Everett
发明人： Brian McKeon , John Wood , David Everett
IPC分类号： G06F12/14
CPC分类号： G07F7/1008 , G06F21/51 , G06F21/57 , G06F2221/2115 , G06K19/0719 , G06K2017/0041 , G06Q20/341 , G06Q20/355 , G06Q20/3552 , G06Q20/3574 , G06Q20/35765 , G06Q20/4097 , G06Q20/40975 , G07F7/1016 , H04L9/0825 , H04L9/0894 , H04L9/3247 , H04L9/3263 , H04L2209/80
摘要： Methods, apparati, and computer-readable media for securely loading a software module over a communications network from a software provider (SP) (101) onto a tamper resistant module (TRM) (103). A method embodiment of the present invention comprises: the SP (101) encrypting, using at least one transport key, at least one portion of the software module, each portion having an indication of location of the portion; the SP (101) encrypting each transport key and each indication using an asymmetric TRM public key, thereby forming a key transformation unit (KTU) (207), the TRM public key (150) having a corresponding TRM private key (190), the TRM public key (150) and corresponding TRM private key (190) being certified by a first certification authority (CA-1) (109); the SP (101) digitally signing the encrypted portion(s) with at least one asymmetric SP private key, each said SP private key having a corresponding SP public key, to produce a signed software module, each SP public key being certified by a second certification authority (CA-2) (119), CA2 (119) being different than CA-1 (109); and the SP (101) transmitting the portion(s), the KTU (207), and the signed software module to the TRM (103) over the communications network; and the TRM (103) recovering the transport key(s) and the indication(s) by decrypting the KTU (207) using the TRM private key (190); the TRM identifying the portion(s) using the recovered indication(s), verifying the certified SP public key using the public key of CA-2, authenticating the portion(s) using the certified SP public key; and decrypting the portion(s) using the recovered transport key(s).
摘要翻译：用于通过通信网络将软件模块从软件提供商（SP）（101）安全地加载到防篡改模块（TRM）（103）上的方法，装置和计算机可读介质。本发明的方法实施例包括：SP（101）使用至少一个传输密钥加密软件模块的至少一部分，每个部分具有该部分的位置的指示; SP（101）使用非对称TRM公开密钥加密每个传输密钥和每个指示，由此形成密钥变换单元（KTU）（207），具有对应的TRM私钥（190）的TRM公钥（150）， TRM公钥（150）和由第一认证机构（CA-1）（109）认证的相应TRM私钥（190）; 所述SP（101）用至少一个非对称SP专用密钥对所述加密部分进行数字签名，每个所述SP专用密钥具有对应的SP公开密钥，以产生签名的软件模块，每个SP公钥由第二认证机构（CA-2）（119），CA 2（119）不同于CA-1（109）; 和通过通信网络向TRM（103）发送所述部分的SP（101），所述KTU（207）和所述签名的软件模块; 和TRM（103）通过使用TRM私钥（190）解密KTU（207）来恢复传输密钥和指示; 使用恢复的指示识别部分的TRM，使用CA-2的公钥验证经认证的SP公开密钥，使用认证的SP公钥对部分进行认证; 以及使用恢复的传输密钥来解密所述部分。

29. 发明授权

US07295961B2 Method for generating a circuit model 有权
公开(公告)号：US07295961B2
公开(公告)日：2007-11-13
申请号：US10712706
申请日：2003-11-12
申请人： David E. Root , Nicholas B. Tuffilaro , John Wood , Jan Verspecht
发明人： David E. Root , Nicholas B. Tuffilaro , John Wood , Jan Verspecht
IPC分类号： G06F17/50 , G06F17/10 , G01R13/00
CPC分类号： G06F17/5036
摘要： The present invention includes a method for generating a model of a circuit having an input port and an output port. The method determines an amplitude for current leaving the output port at a frequency ωk when a signal that includes a carrier at ωj modulated by a signal Vj(t) is input to the input port, wherein ωk is a harmonic of ωj. The determined amplitude is used to determine values for a set of constants, ak, such that a function fk(V,ak) provides an estimate of the current, Ik(t), leaving the output port at a frequency ωk when a signal having the form V ⁡ ( t ) = Re ⁢ ∑ k = 1 , H ⁢ V k ⁡ ( t ) ⁢ exp ⁡ ( jω k ⁢ t ) is input to the input port. Here Vk(t) is a component of a set of values V. The fk(V,ak) are used to provide a simulator component adapted for use in a circuit simulator.

30. 发明授权

US07236060B2 Electronic pulse generator and oscillator 有权
标题翻译：电子脉冲发生器和振荡器
公开(公告)号：US07236060B2
公开(公告)日：2007-06-26
申请号：US10275461
申请日：2001-05-11
申请人： John Wood
发明人： John Wood
IPC分类号： H03B5/18
CPC分类号： H03B5/1852 , H01L2924/0002 , H01L2924/00
摘要： Distributed traveling wave oscillator circuitry is disclosed. The oscillator circuitry includes a signal path, a plurality of active switching means, and a direction promoting means. The signal path is formed from a pair of adjacent conductors and exhibits endless electric or magnetic continuity. The signal path also includes a portion that creates a signal phase inversion which sets half-cycles of oscillation to be the time of a single traverse of the signal path by the signal. The plurality of active switching means is connected between the adjacent conductors of the signal path for setting rise and fall times of each said half-cycle of oscillation. The direction promoting means establishes the direction of the traveling wave on the signal path.
摘要翻译：公开了分布式行波振荡器电路。振荡器电路包括信号路径，多个主动切换装置和方向促进装置。信号路径由一对相邻的导体形成并呈现无穷尽的电或磁连续性。信号路径还包括产生信号相位反转的部分，其将振荡的半周期设置为信号路径的单次移动的时间。多个有源开关装置连接在信号路径的相邻导体之间，用于设定每个所述半周期振荡的上升和下降时间。方向推进装置在信号路径上建立行波的方向。

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