公开(公告)号：US20060193372A1

公开(公告)日：2006-08-31

申请号：US11342868

申请日：2006-01-31

申请人： John McCorkle ,  James Thompson

发明人： John McCorkle ,  James Thompson

IPC分类号： H04B1/69 ,  H04L27/20

CPC分类号： H04B1/7172 ,  H04B1/7174 ,  H04B1/7183 ,  H04L27/0004

摘要： An ultra-wide band (UWB) waveform generator and encoder for use in a UWB digital communication system. The UWB waveform is made up of a sequence of shaped wavelets. The waveform generator produces multi-amplitude, multi-phase wavelets that are time-constrained, zero mean, and can be orthogonal in phase, yet still have a −10 dB power spectral bandwidth that is larger than the frequency of the peak of the power spectrum In one embodiment, the wavelets are bi-phase wavelets. The encoder multiplies each data bit by an n-bit identifying code, (e.g., a user code), resulting in a group of wavelets corresponding to each data bit. The identifying codeword is passed onto the UWB waveform generator for generation of a UWB waveform that can be transmitted via an antenna.

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。 UWB波形由一系列成形小波组成。 波形发生器产生时间约束，零均值，并且可以相位正交的多振幅多相小波，但仍然具有大于功率峰值的频率的-10dB功率谱带宽 频谱在一个实施例中，小波是双相小波。 编码器将每个数据位乘以n位识别码（例如，用户码），导致与每个数据比特相对应的一组小波。 识别码字被传送到UWB波形发生器，用于产生可以经天线发送的UWB波形。

公开(公告)号：US20060179311A1

公开(公告)日：2006-08-10

申请号：US11389313

申请日：2006-03-27

申请人： John McCorkle ,  Matthew Welborn ,  Richard Roberts

发明人： John McCorkle ,  Matthew Welborn ,  Richard Roberts

IPC分类号： H04L9/00

CPC分类号： H04W12/06 ,  G01S7/023 ,  G01S13/0209 ,  H04B1/7163 ,  H04J3/0682 ,  H04L25/4902 ,  H04L27/0004 ,  H04L63/0428 ,  H04L63/0492 ,  H04L63/08 ,  H04L63/162 ,  H04W24/00 ,  H04W28/18 ,  H04W52/288 ,  H04W64/00 ,  H04W74/00 ,  H04W80/02 ,  H04W84/18

摘要： A system and method are provided for authenticating a new device in a wireless network using an authentication device. First, the new device estimates the distance between the new device and the authenticating device as a first distance measurement, and sends the first distance measurement to the authentication device. The authentication device then estimates the distance between the new device and the authenticating device as a second distance measurement. The authentication device then evaluates the first and second distance measurements to determine if they meet authentication criteria and sends authentication data to the new device only if the first and second distance measurements meet the authentication criteria. These criteria can be that they do not differ by more than a set error value or that they both are below a set maximum value.

摘要翻译： 提供了一种用于使用认证装置在无线网络中认证新设备的系统和方法。 首先，新设备将新设备和认证设备之间的距离估计为第一距离测量，并将第一距离测量发送到认证设备。 认证装置然后估计新设备和认证设备之间的距离作为第二距离测量。 认证设备然后评估第一和第二距离测量以确定它们是否满足认证标准，并且仅当第一和第二距离测量符合认证标准时才将认证数据发送到新设备。 这些标准可以是它们不同于设定的错误值，或者它们都低于设定的最大值。

公开(公告)号：US20060029138A1

公开(公告)日：2006-02-09

申请号：US11165541

申请日：2005-06-24

申请人： John McCorkle

发明人： John McCorkle

IPC分类号： H04B1/66 ,  H04L27/06

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：US5019825A

公开(公告)日：1991-05-28

申请号：US440944

申请日：1989-11-24

申请人： John McCorkle

发明人： John McCorkle

IPC分类号： G01S13/28

CPC分类号： G01S13/28

摘要： A coherently interruptible frequency hopped chirp waveform generator has aignal generating synthesizer and a chirp generator with digitally stored chirp samples in which both are phase locked to a reference clock and responsive to a timing and control circuit. The digitally stored chirp signal sample is D/A converted and mixed with a fixed frequency signal generated by the synthesizer forming translated chirp signals. The translated chirp signals are output, being controlled by a timing and control circuit so that a plurality of coherently interruptible and frequency selectable chirp sub-pulses are formed.

摘要翻译： 相干可中断的跳频啁啾波形发生器具有信号产生合成器和具有数字存储的啁啾样本的啁啾发生器，其中两者都被锁相到参考时钟并且响应于定时和控制电路。 数字存储的啁啾信号采样被D / A转换，并与由合成器产生的固定频率信号混合，形成转换的啁啾信号。 输出转换的啁啾信号，由定时和控制电路控制，从而形成多个相干中断和频率选择的啁啾子脉冲。

公开(公告)号：US20080096491A1

公开(公告)日：2008-04-24

申请号：US12000464

申请日：2007-12-13

申请人： Phuong Hyunh ,  John McCorkle ,  Fernando Hidalgo

发明人： Phuong Hyunh ,  John McCorkle ,  Fernando Hidalgo

IPC分类号： H04B1/44

CPC分类号： H04B1/44

摘要： A transceiver 400 is provided in an ultrawide bandwidth device, which includes an antenna 110, a transmitter circuit 145, and a receiver circuit 165. A transmitter amplifier 440 is provided between the antenna 110 and the transmitter circuit 145, and is configured to have an operational transmitter output impedance when the transceiver 400 is in a transmit mode and an isolation transmitter output impedance when the transceiver 400 is in a receive mode. A receiver amplifier 460 is provided between the antenna 110 and the receiver circuit 165, and is configured to have an operational receiver input impedance when the transceiver 400 is in a receive mode and an isolation receiver input impedance when the transceiver 400 is in a transmit mode. The isolation transmitter output impedance is greater than the operational receiver input impedance, and the isolation receiver input impedance is greater than the operational transmitter output impedance. Thus, a transmitter and receiver can be isolated without using a transmit/receive switch.

摘要翻译： 在超宽带宽设备中提供收发器400，其包括天线110，发射机电路145和接收机电路165。 发射机放大器440设置在天线110和发射机电路145之间，并且被配置为当收发器400处于发射模式时具有操作发射机输出阻抗，并且当收发器400处于接收模式时，发射机放大器440被配置为具有操作发射机输出阻抗 。 接收器放大器460设置在天线110和接收器电路165之间，并且被配置为当收发器400处于接收模式时具有操作的接收器输入阻抗，并且当收发器400处于发送模式时，接收器放大器460被配置为具有操作的接收器输入阻抗 。 隔离变送器输出阻抗大于操作接收器输入阻抗，隔离接收器输入阻抗大于工作变送器输出阻抗。 因此，发射机和接收机可以被隔离而不使用发射/接收开关。

公开(公告)号：US20070105582A1

公开(公告)日：2007-05-10

申请号：US11270457

申请日：2005-11-10

申请人： John McCorkle

发明人： John McCorkle

IPC分类号： H04B7/00

CPC分类号： H04W52/38 ,  H04W52/46 ,  H04W52/58

摘要： A method (600) for controlling a transmit power of an interface module (230) is provided. The method includes generating a transmit power code at a power code generator (240) (610); receiving the transmit power code at the interface module (620); receiving control signals at the interface module (650); and generating a transmit signal at a transmitter circuit (410) in the interface module based on the control signals and the transmit power code (660). In this method, the power level of the transmit signal is controlled by the transmit power code, and the transmitter circuit and the power code generator are formed on separate circuit elements.

摘要翻译： 提供了一种用于控制接口模块（230）的发射功率的方法（600）。 该方法包括在功率代码发生器（240）处生成发射功率代码（610）; 在所述接口模块（620）处接收所述发射功率代码; 在所述接口模块（650）处接收控制信号; 以及基于所述控制信号和所述发射功率代码在所述接口模块中的发射机电路（410）处生成发射信号（660）。 在这种方法中，发射信号的功率电平由发射功率码控制，发射机电路和功率代码发生器形成在不同的电路元件上。

公开(公告)号：US20060094357A1

公开(公告)日：2006-05-04

申请号：US10975375

申请日：2004-10-29

申请人： John McCorkle

发明人： John McCorkle

IPC分类号： H04B7/00

CPC分类号： H03H7/42 ,  H01P5/10

摘要： In an input/output circuit (200), a differential balun (250) is provided that has first and second balun inputs and first and second balun outputs. An antenna (230) is connected to the first and second balun outputs. A differential amplifier (220) has one output connected to the first balun input, and a second output connected to the second balun input, while a single-ended amplifier (110) has its input connected to the first balun input. A grounding switch (240) is connected between the second balun input and ground. During a transmit mode the grounding switch (240) is open, the differential amplifier (220) is turned on, and the single-ended amplifier (110) is turned off. During a receive mode the grounding switch (240) is closed, the differential amplifier (220) is turned off, and the single-ended amplifier (110) is turned on.

摘要翻译： 在输入/输出电路（200）中，提供了具有第一和第二平衡 - 不平衡变换器输入以及第一和第二平衡 - 不平衡变换器输出的差分平衡 - 不平衡变压器（250）。 天线（230）连接到第一和第二平衡 - 不平衡变换器输出端。 差分放大器（220）具有连接到第一平衡 - 不平衡变换器输入的一个输出和连接到第二平衡 - 不平衡变换器输入的第二输出，而单端放大器（110）的输入连接到第一平衡 - 不平衡变换器输入。 接地开关（240）连接在第二平衡 - 不平衡变换器输入和地之间。 在发射模式期间，接地开关（240）断开，差动放大器（220）导通，单端放大器（110）关断。 在接收模式期间，接地开关（240）闭合，差动放大器（220）关闭，单端放大器（110）导通。

公开(公告)号：US20060078038A1

公开(公告)日：2006-04-13

申请号：US11214741

申请日：2005-08-31

申请人： John McCorkle

发明人： John 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与作为接收的UWB信号的一部分的输入小波匹配的脉冲响应来匹配，从更广泛的频谱中提取RFI以消除来自UWB信号的干扰，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：US20050265428A1

公开(公告)日：2005-12-01

申请号：US11183778

申请日：2005-07-19

申请人： John McCorkle

发明人： John McCorkle

IPC分类号： G01S13/02 ,  H04L25/49 ,  H04L27/00 ,  H04B1/69

CPC分类号： G01S7/023 ,  G01S13/0209 ,  H04B1/71635 ,  H04B1/71637 ,  H04B1/7172 ,  H04L25/4902 ,  H04L27/0004

摘要： An ultra wide bandwidth communications system, method and computer program product including an ultra wide bandwidth timing generator. The timing generator includes a high frequency clock generation circuit having low phase noise; a low frequency control generation circuit; and a modulation circuit coupled between the high frequency clock generation circuit and the low frequency control generation circuit. The high frequency clock generation circuit generates a plurality of high frequency clock signals. The low frequency control generation circuit generates a plurality of low frequency control signals. The modulation circuit modulates the high frequency clock signals with the low frequency control signals to produce an agile timing signal at a predetermined frequency and phase. The agile timing signal is generated at the predetermined frequency and phase by adjustments to at least one of frequency of the low frequency control signals, phase of the low frequency control signals, frequency of the high frequency clock signals, and phase of the high frequency clock signals.

公开(公告)号：US20070076782A1

公开(公告)日：2007-04-05

申请号：US11239133

申请日：2005-09-30

申请人： John McCorkle ,  Timothy Miller

发明人： John McCorkle ,  Timothy Miller

IPC分类号： H04B1/00

CPC分类号： H04B1/1036

摘要： A circuit (100) is provided for notching an incoming wireless signal. The circuit comprises: a notching mechanism (110) for receiving an incoming signal and generating a notched signal having reduced power at the notch frequency (320), the notch frequency being adjustable in response to a notching control signal; a signal parameter detector (165, 170, 175, 180, 185) for detecting a signal parameter of the notched signal (325); a controller (155) for receiving the signal parameter and for generating the notching control signal (315), the controller being configured to vary the signal parameter within a notching control signal range (340); and a memory (160) for storing the signal parameter and the notching control signal received from the controller in a notching database (330). The controller is configured to analyze the notching database to determine an optimal notching control signal to achieve a desired level of signal performance (345).

摘要翻译： 提供电路（100）用于切入输入的无线信号。 所述电路包括：切口机构（110），用于接收输入信号并产生在所述陷波频率（320）具有降低功率的陷波信号，所述陷波频率可响应于开槽控制信号而被调整; 信号参数检测器（165,170,175,180,185），用于检测所述有缺口信号（325）的信号参数; 控制器（155），用于接收所述信号参数并用于产生所述开槽控制信号（315），所述控制器被配置为在所述开槽控制信号范围（340）内改变所述信号参数; 以及存储器（160），用于将从控制器接收的信号参数和开槽控制信号存储在开槽数据库（330）中。 控制器被配置为分析开槽数据库以确定最佳的陷波控制信号以实现期望的信号性能水平（345）。