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1. 发明授权

US4736390A Zero IF radio receiver apparatus 失效
标题翻译：零IF无线电接收设备
公开(公告)号：US4736390A
公开(公告)日：1988-04-05
申请号：US919106
申请日：1986-10-15
申请人： Charles R. Ward , Ning H. Lu
发明人： Charles R. Ward , Ning H. Lu
IPC分类号： H03D1/22 , H04B1/30 , H03K9/02
CPC分类号： H03D1/22 , H04B1/30
摘要： There is described a zero IF receiver which affords to reduce offsets normally associated with quadrature mixers employed in such receivers. In order to reduce the effect of such offsets the local oscillator signal is modulated with a balanced pseudo-random phase code signal. This signal is then stripped off by means of additional mixers, one for each of the quadrature channels. The effect of the pseudo-random phase code signal is to spread the spectrum which is associated with the offsets so that the receiver can now respond to desired signals with a minimum of interference.
摘要翻译：描述了一种零IF接收机，其提供通常与在这样的接收机中使用的正交混频器相关联的偏移。为了减少这种偏移的影响，本地振荡器信号用平衡伪随机相位码信号进行调制。然后通过附加的混频器剥离该信号，每个正交通道一个。伪随机相位码信号的效果是扩展与偏移相关联的频谱，使得接收机现在可以以最小的干扰来响应期望的信号。

2. 发明授权

US5424631A Hybrid instantaneous frequency measurement compressive receiver apparatus and method 失效
标题翻译：混合瞬时频率测量压缩接收机装置及方法
公开(公告)号：US5424631A
公开(公告)日：1995-06-13
申请号：US176705
申请日：1994-01-03
申请人： Charles R. Ward
发明人： Charles R. Ward
IPC分类号： G01R23/175 , G01S7/02 , G01R23/00
CPC分类号： G01R23/175 , G01S7/021
摘要： The present invention hybrid instantaneous frequency measurement (IFM) compressive receiver processes a wide bandwidth of incoming signals in two processing channels, where a small time delay is introduced to one of the two channels by a time delay stage. A comb generator provides for folding, or collapsing this wide input band into a much narrower bandwidth by overlapping sub-bands of the input band in the same frequency space. A compressive receiver is coupled to the spectrum folding circuitry for accurately measuring the frequency and amplitude of signals in this folded band, which have a sub-band ambiguity due to the folding. Logic circuitry is included for resolving the sub-band ambiguity in order to provide a unique description of the frequencies of input signals in the wide band input frequency range. The hybrid receiver overcomes the limitations of conventional IFM receivers by providing amplitude as well as frequency information for multiple time overlapped input signals with improved sensitivity. It also overcomes the limitations of a conventional compressive receiver by handling much wider input bandwidths than would otherwise be possible.
摘要翻译：本发明的混合瞬时频率测量（IFM）压缩接收机在两个处理信道中处理输入信号的宽带宽，其中通过时间延迟阶段将小的时间延迟引入到两个信道之一中。梳状发生器通过在相同频率空间中重叠输入频带的子带，来将该宽输入频带折叠或折叠成更窄的带宽。压缩接收器耦合到频谱折叠电路，用于精确地测量该折叠带中的信号的频率和幅度，由于折叠而具有子带模糊性。包括逻辑电路用于解决子带模糊度，以便提供宽带输入频率范围内输入信号频率的唯一描述。混合接收机通过提供具有改善的灵敏度的多个重叠输入信号的幅度以及频率信息来克服常规IFM接收机的局限性。它还克服了常规压缩接收机通过处理比其他可能的更宽的输入带宽的限制。

3. 发明授权

US4164628A Processor for multiple, continuous, spread spectrum signals 失效
标题翻译：处理器用于多个连续的扩频信号
公开(公告)号：US4164628A
公开(公告)日：1979-08-14
申请号：US887708
申请日：1978-03-17
申请人： Charles R. Ward , Robert A. Reilly
发明人： Charles R. Ward , Robert A. Reilly
IPC分类号： H04B1/7093 , H04J13/00
CPC分类号： H04B1/7093 , H04B2201/70707
摘要： This relates to a signal processor which accepts the linear sum of several continuous (CW) direct sequence, spread spectrum signals, and outputs a sequence of narrow pulses, each of which contains all the available energy of one of the input signals. The CW signals are applied to the input of a tapped delay line, the contents of which are compared, in a parallel fashion, with the output of a code storage register. When correlation has been achieved, a narrow pulse is produced which contains all the available energy of one of the input signals. The circuit reduces the problem of continuously processing several simultaneous signals, conventionally performed with dedicated circuitry for each signal, to a sequential pulse processing operation, effectively timesharing the same single set of circuitry. Both amplitude and phase information is preserved through the processing technique allowing implementation in coherent and non-coherent system architectures.
摘要翻译：这涉及一种信号处理器，其接受几个连续（CW）直接序列，扩频信号的线性和，并且输出一系列窄脉冲，每个窄脉冲包含输入信号之一的所有可用能量。将CW信号以并行的方式与代码存储寄存器的输出相加，并将其内容应用于抽头延迟线的输入。当已经实现相关时，产生包含输入信号之一的所有可用能量的窄脉冲。该电路减少了将通常用专用电路执行的几个同时信号连续处理到顺序脉冲处理操作的问题，该操作有效地对共同的单组电路进行时分。通过处理技术保持幅度和相位信息，允许在相干和非相干系统架构中实现。

4. 发明授权

US07034738B1 Method of radar pattern recognition by sorting signals into data clusters 有权
标题翻译：通过将信号分类为数据集群的雷达模式识别方法
公开(公告)号：US07034738B1
公开(公告)日：2006-04-25
申请号：US10728468
申请日：2003-12-05
申请人： Paul C. Wang , Charles R. Ward
发明人： Paul C. Wang , Charles R. Ward
IPC分类号： G01S7/292 , G01S7/40
CPC分类号： G01S7/021
摘要： A system and method for classifying radar emitters includes: (a) receiving a plurality of signals from the radar emitters; (b) generating data components for each signal received from the radar emitters; (c) forming multi-dimensional samples using the generated data components; and (d) sorting the multi-dimensional samples into a plurality of data clusters, based on their respective proximity to the data clusters, each data cluster representing a classification of a radar emitter.
摘要翻译：用于对雷达发射器进行分类的系统和方法包括：（a）从雷达发射器接收多个信号; （b）产生从雷达发射器接收的每个信号的数据分量; （c）使用所生成的数据分量形成多维样本; 和（d）基于它们各自与数据簇的接近度将多维样本分类成多个数据簇，每个数据簇表示雷达发射器的分类。

5. 发明授权

US07738598B1 Detection and time-of-arrival estimation using an IFM receiver 有权
标题翻译：使用IFM接收机的检测和到达时间估计
公开(公告)号：US07738598B1
公开(公告)日：2010-06-15
申请号：US11521822
申请日：2006-09-15
申请人： Stuart M. Lopata , James B. Y. Tsui , Maan J. Broadstock , Charles R. Ward
发明人： Stuart M. Lopata , James B. Y. Tsui , Maan J. Broadstock , Charles R. Ward
IPC分类号： H03K9/00
CPC分类号： H04B17/364
摘要： An instantaneous frequency measurement (IFM) receiver includes a receiver module for determining a frequency fe of a received signal. Also included is a discrete Fourier transform (DFT) module configured to sum values of digital samples of data in a block of data, wherein the values of the digital samples of data are based on the frequency fe. A confirmation module confirms the frequency fe, if the sum has a value greater than a predetermined threshold. The DFT module is configured to obtain the sum of N-sample points of data which are disposed in the block of data by using a DFT kernel function.
摘要翻译：瞬时频率测量（IFM）接收机包括用于确定接收信号的频率fe的接收机模块。还包括离散傅里叶变换（DFT）模块，其被配置为对数据块中的数据的数字采样值求和，其中数据的数字采样值基于频率fe。如果和具有大于预定阈值的值，则确认模块确认频率fe。 DFT模块被配置为通过使用DFT内核功能来获得在数据块中设置的N个采样点数据的和。

6. 发明授权

US5706883A Mass storage and dispensing system for liquids such as citrus products 失效
标题翻译：用于液体如柑橘类产品的大容量储存和分配系统
公开(公告)号：US5706883A
公开(公告)日：1998-01-13
申请号：US694879
申请日：1996-08-09
申请人： Charles R. Ward
发明人： Charles R. Ward
IPC分类号： A23L2/42 , A23L3/36 , A23L3/365 , F25D17/02 , F25B29/00
CPC分类号： F25D17/02 , A23L2/42 , A23L3/36 , A23L3/361 , A23L3/365
摘要： A system in which mass quantities of liquids may be stored in a substantially frozen state, portions thawed for dispensing, and any undispensed thawed portions rechilled for further storage is disclosed. The system includes a tank with a substantially bell-shaped, or flared, interior, the flaring of the tank surface combining with force of gravity to detach frozen material for dispensing. Separate temperature control sections allow selected areas of the tank to be heated or cooled as necessary, moreover, and distinct reservoirs of heat-transfer liquid (such as glycol) may be used for heating versus cooling the tank.
摘要翻译：公开了一种系统，其中大量液体可以以基本上冻结的状态存储，解冻的部分用于分配，以及任何未分配的解冻部分被再烧制用于进一步的存储。该系统包括具有基本上钟形或喇叭形的内部的罐，罐表面的扩口结合重力以分离冷冻材料用于分配。单独的温度控制部分允许根据需要加热或冷却罐的选定区域，此外，可以使用不同的传热液体（例如乙二醇）来加热而不是冷却罐。

7. 发明授权

US4142240A Agile code generator 失效
标题翻译：敏捷代码生成器
公开(公告)号：US4142240A
公开(公告)日：1979-02-27
申请号：US829382
申请日：1977-08-31
申请人： Charles R. Ward , Robert A. Reilly
发明人： Charles R. Ward , Robert A. Reilly
IPC分类号： G06F7/58 , G06F7/00
CPC分类号： G06F7/584 , G06F2207/581
摘要： The code generator of the present invention uses digital memories to replace the linear feedback shift registers of the prior art. Each memory contains the time ordered bit sequence for each of the component codes which in general, make up the overall, longer code. Since the entire bit sequences of the component codes are immediately available in the memories by appropriate addressing, the code generator can be initialized to an arbitrary, but defined code state within the response time of the memory element. As an additional benefit, at the option of the designer, the digital memory can be chosen to extract code segments, for example, 8 bits wide rather than single bits, and this parallel approach reduces code clocking speed through much of the code generator hardware, and/or may permit several code patterns for multichannel applications to be constructed using the same common memories.
摘要翻译：本发明的代码生成器使用数字存储器来代替现有技术的线性反馈移位寄存器。每个存储器包含每个组件代码的时间排序比特序列，其通常构成整体较长的代码。由于组件代码的整个比特序列通过适当的寻址在存储器中立即可用，所以代码生成器可以在存储器元件的响应时间内被初始化为任意但是定义的代码状态。作为额外的好处，作为设计者的选择，可以选择数字存储器来提取代码段，例如8位宽而不是单个位，并且这种并行方法通过大量代码生成器硬件来降低代码时钟速度，和/或可以允许使用相同的公共存储器构造用于多通道应用的多个代码模式。

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