公开(公告)号：US20080247486A1

公开(公告)日：2008-10-09

申请号：US12155948

申请日：2008-06-12

申请人： John W. McCorkle

发明人： John W. McCorkle

IPC分类号： H04L27/04 ,  H04B1/69

CPC分类号： H04B1/7174 ,  H04B1/71632 ,  H04B1/719 ,  H04L27/0004

摘要： An ultra-wide band (UWB) waveform encoding method is provided. The method includes receiving a data stream; generating a first encoder signal and a second encoder signal such that if the first and second encoder signals were mixed, the mixing would return a representation of the data stream; generating a sequence of pulses; mixing the first encoder signal with at least a portion of the sequence of pulses, to produce a mixing result; and mixing the second encoder signal with the mixing result, to produce a sequence of ultra wideband wavelets encoded in accordance with the data stream.

摘要翻译： 提供了超宽带（UWB）波形编码方法。 该方法包括接收数据流; 生成第一编码器信号和第二编码器信号，使得如果混合第一和第二编码器信号，混合将返回数据流的表示; 产生脉冲序列; 将第一编码器信号与脉冲序列的至少一部分混合，以产生混合结果; 以及将所述第二编码器信号与所述混合结果混合，以产生根据所述数据流编码的超宽带小波序列。

公开(公告)号：US07346120B2

公开(公告)日：2008-03-18

申请号：US10318371

申请日：2002-12-13

申请人： John W. McCorkle

发明人： John W. McCorkle

IPC分类号： H04L27/00

CPC分类号： H04L27/0008 ,  G08B13/2431 ,  H04B1/69 ,  H04B1/7163 ,  H04B1/7172 ,  H04B1/7174 ,  H04B1/7176 ,  H04B1/7183 ,  H04J3/0682 ,  H04L25/4902 ,  H04L27/0004 ,  H04L27/18 ,  H04W24/00 ,  H04W52/0229 ,  H04W88/02 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/166 ,  Y02D70/40

摘要： An identification tag is provided in which radio frequency (RF) circuitry and ultrawide bandwidth (UWB) circuitry are both provided on the same tag, along with some UWB-RF interface circuitry. The RF circuitry is used to detect when the identification tag must be accessed, and is used to connect the UWB circuitry with a power supply. The UWB circuitry then performs the necessary communication functions with a distant device and the power supply is again disconnected. In this way the power supply is only accessed when the UWB circuitry is needed and it's usable lifetime can be maximized.

摘要翻译： 提供了一种识别标签，其中同一标签上的射频（RF）电路和超宽带（UWB）电路都连同一些UWB-RF接口电路一起提供。 RF电路用于检测何时必须访问识别标签，并用于将UWB电路与电源连接。 然后，UWB电路将与远程设备执行必要的通信功能，并再次断开电源。 以这种方式，只有在需要UWB电路时才能访问电源，并且可以使其使用寿命最大化。

公开(公告)号：US07315564B2

公开(公告)日：2008-01-01

申请号：US11214741

申请日：2005-08-31

申请人： John W. McCorkle

发明人： John W. McCorkle

IPC分类号： H04B1/69

CPC分类号： H04M3/42034 ,  H04B1/1036 ,  H04B1/71637 ,  H04B1/719

摘要： A system, method, and computer program product for removing “narrowband” interference from a broader spectrum containing a UWB signal, in a receiver of the UWB signal. The RFI is extracted from a broader spectrum to remove interference from the UWB signal, by employing an impulse response in a radio front-end of the UWB receiver that is matched with an incoming wavelet employed as part of a UWB signal to be received, matching the impulse response to the wavelet and its time-shifted and inverted versions, passing the wavelet unscathed through the receiver, and excising narrowband signals (continuous tones). Exemplary embodiments for the RFI extraction mechanism include a transmission line circuit, an active transmission line circuit, and an adaptable, controllable phase delay circuit.

摘要翻译： 一种用于在UWB信号的接收机中从包含UWB信号的较宽频谱中去除“窄带”干扰的系统，方法和计算机程序产品。 通过在UWB接收机的无线电前端中采用冲突响应，从宽范围提取RFI以消除来自UWB信号的干扰，该脉冲响应与作为待接收的UWB信号的一部分的入局小波匹配，匹配 对小波的脉冲响应及其时间偏移和反转版本，通过接收器传递小波，并且切除窄带信号（连续色调）。 用于RFI提取机构的示例性实施例包括传输线路电路，有源传输线路电路和适应性可控的相位延迟电路。

公开(公告)号：US07177341B2

公开(公告)日：2007-02-13

申请号：US09972966

申请日：2001-10-10

申请人： John W. McCorkle

发明人： John W. McCorkle

IPC分类号： H04B1/00

CPC分类号： H04B1/719 ,  H04B1/69 ,  H04B1/71637 ,  H04L27/0004 ,  H04W88/06 ,  H04W88/10

摘要： A mechanism and method are provided for self-canceling noise generated in a UWB receiver and for providing multi-mode operation for the receiver. Noise is canceled by generating a first set of wavelets in a same phase as an incoming signal, and a second set of wavelets with an opposite phase as the incoming signal. The received signal and the generated wavelets are mixed and the result integrated such that the integrated output tends to zero. The multiple modes of operation allow the receiver to process multiple types of waveforms. The modes may be chosen by a user-selected switch, a waveform-detection based switch, or the like.

摘要翻译： 提供了一种用于在UWB接收机中产生的自消除噪声并为接收机提供多模式操作的机构和方法。 通过在与输入信号相同的相位中产生第一组小波来消除噪声，以及具有相反相位的第二组小波作为输入信号。 所接收的信号和产生的小波被混合，结果被积分，使得积分输出倾向于为零。 多种操作模式允许接收机处理多种类型的波形。 这些模式可以由用户选择的开关，基于波形检测的开关等来选择。

公开(公告)号：US06937646B1

公开(公告)日：2005-08-30

申请号：US09685200

申请日：2000-10-10

申请人： John W. McCorkle

发明人： John W. McCorkle

IPC分类号： H04B1/69 ,  H04L25/06 ,  H04L27/00

CPC分类号： H04B1/7172 ,  H04B1/709 ,  H04B1/71637 ,  H04L25/061 ,  H04L27/0004

摘要： A receiver correlator structure for an ultra wide bandwidth communication system includes an antenna, a mixer, a bandpass filter, and a convertor. The receiver receives, via the antenna, an ultra wide bandwidth signal comprising a sequence of wavelets of particular shapes and positions, and transmits the received ultra wide bandwidth signal to the mixer. The mixer also receives and mixes with the received ultra wide bandwidth signal a local ultra wide bandwidth signal comprising a sequence of wavelets of particular shapes and positions correlated to the received ultra wide bandwidth signal. The bandpass filter removes the DC components from the mixed signal, and provides the resultant signal to the convertor. The receiver structure eliminates the local ultra wide bandwidth signal AC bias and DC bias terms and 1/f noise, yet detects long sequences of logical 1's and 0's, and allows operation with reduced bandwidth convertors.

摘要翻译： 用于超宽带宽通信系统的接收机相关器结构包括天线，混频器，带通滤波器和转换器。 接收器经由天线接收包括特定形状和位置的小波序列的超宽带宽信号，并将接收到的超宽带宽信号发送到混频器。 混频器还接收并与接收的超宽带宽信号混合本地超宽带宽信号，该本地超宽带宽信号包括与所接收的超宽带宽信号相关的特定形状和位置的小波序列。 带通滤波器从混合信号中去除直流分量，并将结果信号提供给转换器。 接收机结构消除了本地超宽带宽信号AC偏置和DC偏置项和1 / f噪声，但检测到逻辑1和0的长序列，并允许使用带宽转换器进行操作。

公开(公告)号：US06859506B1

公开(公告)日：2005-02-22

申请号：US09684782

申请日：2000-10-10

申请人： John W. McCorkle

发明人： John W. McCorkle

IPC分类号： H04B1/69 ,  H04L27/00 ,  H03K5/01 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08

CPC分类号： H04B1/719 ,  H04B1/71637 ,  H04L27/0004

摘要： An ultra-wide band (UWB) waveform receiver with noise cancellation for use in a UWB digital communication system. The UWB receiver uses a two-stage mixing approach to cancel noise and bias in the receiver. Self-jamming is prevented by inverting a portion of the received signal in the first mixer and then coherently detecting the partially and synchronously inverted signal in the second mixer. Since the drive signals on both mixers are not matched to the desired signal, leakage of either drive signal does not jam the desired signal preventing the receiver from detecting and decoding a weak signal.

摘要翻译： 具有噪声消除的超宽带（UWB）波形接收器，用于UWB数字通信系统。 UWB接收机采用两级混合方式来消除接收机中的噪声和偏置。 通过在第一混频器中反转接收信号的一部分，然后在第二混频器中相干地检测部分和同步反转的信号来防止自干扰。 由于两个混频器上的驱动信号都不符合所需信号，任何一个驱动信号的泄漏都不会阻塞所需的信号，从而阻止接收机检测和解码弱信号。

公开(公告)号：US06735238B1

公开(公告)日：2004-05-11

申请号：US09684400

申请日：2000-10-10

申请人： John W. McCorkle

发明人： John W. McCorkle

IPC分类号： H04B169

CPC分类号： G01S7/023 ,  G01S13/0209 ,  H04B1/69 ,  H04B1/74 ,  H04L25/4902 ,  H04L27/0004

摘要： An ultra-wide band (UWB) waveform generator and encoder for use in a UWB digital communication system. The encoder multiples each data bit by an n-bit identifying code, (e.g., a user code), resulting in a stream of bits corresponding to each data bit. This stream of bits is referred to as the original codeword. The original codeword is passed onto the UWB waveform generator for generation of a UWB waveform that can be transmitted via an antenna. The UWB waveform is made up of shaped wavelets. In one embodiment, the wavelets are bi-phase wavelets, and the UWB waveform generator uses a two-stage differential mixer and a pulse generator. The first stage combines the pulses from the pulse generator with a first derivative codeword derived from the original codeword. The output of this first stage is a wavelet, which is used as input to the second differential mixer along with a second derivative codeword also derived from the original codeword and orthogonal to the first derivative codeword. The output of the second mixer is a wavelet, which represents an inversion of the original codeword. This wavelet is then passed on to an inverting amplifier before it is transmitted via an antenna. By using two derivative codewords at one-half the chipping rate of the original codeword, less power is consumed. An advantage of the two stage mixer system is that it suppresses the noise generated and transmitted by the system.

摘要翻译： 用于UWB数字通信系统的超宽带（UWB）波形发生器和编码器。 编码器通过n位识别码（例如，用户代码）对每个数据位进行倍数，导致与每个数据位相对应的位流。 这个比特流被称为原始码字。 原始码字被传送到UWB波形发生器，用于产生可通过天线传输的UWB波形。 UWB波形由成形小波组成。 在一个实施例中，小波是双相小波，UWB波形发生器使用两级差分混频器和脉冲发生器。 第一级将来自脉冲发生器的脉冲与从原始码字导出的一阶导数码字组合。 该第一级的输出是小波，其被用作第二差分混频器的输入以及从原始码字导出并与第一导数代码字正交的二进制代码字。 第二混频器的输出是表示原始码字反转的小波。 然后在通过天线传输之前，将该小波传递到反相放大器。 通过使用原始码字的削减率的二分之二的二进制码字，消耗较少的功率。 两级混频器系统的优点在于它抑制了系统产生和传输的噪声。

公开(公告)号：US06351246B1

公开(公告)日：2002-02-26

申请号：US09563292

申请日：2000-05-03

申请人： John W. McCorkle

发明人： John W. McCorkle

IPC分类号： H01Q928

CPC分类号： H01Q21/08 ,  H01Q1/38 ,  H01Q9/285 ,  H01Q13/08 ,  H01Q13/085 ,  H01Q23/00

摘要： An planar ultra wide bandwidth (UWB) antenna that provides integration of electronics is disclosed. The antenna has a first balance element that is connected to a terminal at one end. A second balance element is connected to another terminal at one end. The second balance element has a shape that mirrors the shape of the first balance element such that there is a symmetry plane where any point on the symmetry plane is equidistant to all mirror points on the first and second balance elements. Each of the balance elements is made of a generally conductive material. A triangular shaped ground element is situated between the first balance element and the second balance element with an axis of symmetry on the symmetry plane, and oriented such that the base of the triangle is towards the terminals. Accordingly, the ground element and each of the balance elements form two tapered gaps which widen and converge at the apex of the ground element as the taper extends outwardly from the terminals. Under this arrangement, sensitive UWB electronics can be housed within the perimeter of the ground element, thereby eliminating transmission line losses and dispersion, and minimizing and system ringing. A resistive loop connected between the first and second balance elements extends the low frequency response and improves the VSWR. A connection of an array of elements is disclosed that provides a low-frequency cutoff defined by the array size rather than the element size.

公开(公告)号：US5847677A

公开(公告)日：1998-12-08

申请号：US888806

申请日：1997-07-07

申请人： John W. McCorkle

发明人： John W. McCorkle

IPC分类号： G01S7/282 ,  G01S13/22 ,  G06F7/58 ,  G01S13/12

CPC分类号： G06F7/582 ,  G01S13/222 ,  G01S7/282

摘要： A random number generator for generating a pseudo-random code for use with ittered pulse repetition interval radar systems has been disclosed in which the code generated by the random number generator possesses the five attributes desirable for a jittered radar PRI: a flat frequency spectrum, a nearly perfect spike for an autocorrelation function, a controllable absolute minimum and maximum interval, long sequences that do not repeat, and a reasonable average pulse rate. A method for analyzing the autocorrelation properties of the code generated by the random number generator is also disclosed. A means to generate a pulse signal with random pulse repetition jitter has been disclosed.

摘要翻译： 已经公开了用于产生用于抖动脉冲重复间隔雷达系统的伪随机码的随机数发生器，其中由随机数发生器产生的代码具有对于抖动雷达PRI所需的五个属性：平坦频谱， 自相关函数几乎完美的峰值，可控的绝对最小和最大间隔，不重复的长序列以及合理的平均脉率。 还公开了一种用于分析由随机数发生器产生的代码的自相关特性的方法。 已经公开了产生具有随机脉冲重复抖动的脉冲信号的手段。

公开(公告)号：US5379006A

公开(公告)日：1995-01-03

申请号：US75368

申请日：1993-06-11

申请人： John W. McCorkle

发明人： John W. McCorkle

IPC分类号： H01P5/10

CPC分类号： H01P5/10

摘要： An ultra wide band DC to GHz balun consisting of transmission lines, a small inverting junction, and an RC network connecting the shields of the balanced load transmission lines such that an unbalanced source sees a matched load from DC to GHz.

摘要翻译： 由传输线，小反相结以及连接平衡负载传输线的屏蔽的RC网络组成的超宽带DC至GHz平衡不平衡变换器，使得不平衡源看到从DC到GHz的匹配负载。