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1. 发明申请

WO2004002049A1 SYSTEM AND METHOD FOR PROVIDING SIGNAL QUALITY FEEDBACK IN A WIRELESS NETWORK 审中-公开
标题翻译：在无线网络中提供信号质量反馈的系统和方法
公开(公告)号：WO2004002049A1
公开(公告)日：2003-12-31
申请号：PCT/US2002/023103
申请日：2002-07-22
申请人： XTREMESPECTRUM, INC.
发明人： SHVODIAN, William M.
IPC分类号： H04L1/20
CPC分类号： H04W52/267 , H04L1/0001 , H04L1/0002 , H04L1/0026 , H04L1/1671 , H04W24/00 , H04W28/22 , H04W52/20 , H04W52/24 , H04W52/50
摘要： A method is provided for giving signal quality feedback in a wireless network. First, a transmitting device sends a data packet to a receiving device in a data signal (805). This data signal is sent at a first transmission power and a first data transmission rate. The receiving device receives the data packet in the data signal and determines a signal quality metric for the data signal. The receiving device then sends an acknowledgement frame to the transmitting device in an acknowledgement signal (815). The acknowledgement frame includes one or more feedback bits, which indicates a relative signal quality of the data signal. The transmitting device receives the acknowledgement frame in the acknowledgement signal at the transmitting device, and adjusts the first transmission power and the first data transmission rate to a second transmission power and a second data transmission rate, respectively, based on the one or more feedback bits (835, 840, 845).
摘要翻译：提供了一种用于在无线网络中提供信号质量反馈的方法。首先，发送设备在数据信号（805）中向接收设备发送数据分组。该数据信号以第一传输功率和第一数据传输速率发送。接收装置接收数据信号中的数据包，并确定数据信号的信号质量度量。然后，接收设备在确认信号（815）中向发送设备发送确认帧。确认帧包括指示数据信号的相对信号质量的一个或多个反馈比特。发送装置在发送装置接收到应答信号中的确认帧，分别基于一个以上的反馈比特，将第一发送功率和第一数据发送速率分别调整为第二发送功率和第二数据发送速率（835,840,845）。

2. 发明申请

WO2003077432A2 METHOD AND SYSTEM FOR PERFORMING RANGING FUNCTIONS IN AN ULTRAWIDE BANDWIDTH SYSTEM 审中-公开
标题翻译：用于在超宽带带宽系统中执行范围功能的方法和系统
公开(公告)号：WO2003077432A2
公开(公告)日：2003-09-18
申请号：PCT/US2003/007104
申请日：2003-03-07
申请人： XTREMESPECTRUM, INC. , ROBERTS, Richard, D. , RUNKLE, Paul, R.
发明人： ROBERTS, Richard, D. , RUNKLE, Paul, R.
IPC分类号： H04B
CPC分类号： G01S5/0221 , G01S5/0215 , G01S13/0209 , G01S13/765 , H04B1/7163 , H04B1/7172
摘要： A process is provided for determining the distance between two devices by sending ranging packets between them. The local device sends a first ranging packet, which the remote device sends holds for a first hold time before sending a second ranging packet in return. The local device also sends a third ranging packet, which the remote device sends holds for a second hold time before sending a fourth ranging packet in return. If the second hold time is twice the first hold time, then the propagation time for signals between the two devices can be determined solely by time measurements made by the local device. For received signals, these time measurements can be adjusted to provide accurate time estimates for a direct line of sight signal, which corresponds to a shortest transmission distance between the two devices. The propagation time can then be used to determine distance between the devices.
摘要翻译：提供了一种通过在它们之间发送测距分组来确定两个设备之间的距离的过程。本地设备发送第一测距分组，远程设备在发送第二测距分组之前发送保持第一保持时间。本地设备还发送第三测距分组，远程设备在发送第四测距分组之前发送保持第二保持时间。如果第二保持时间是第一保持时间的两倍，则两个设备之间的信号的传播时间可以仅由本地设备进行的时间测量来确定。对于接收到的信号，可以调整这些时间测量值以便为直接视线信号提供准确的时间估计，其对应于两个装置之间的最短传输距离。然后可以使用传播时间来确定设备之间的距离。

3. 发明申请

WO2003077430A3 METHOD AND APPARATUS FOR GENERATING FREQUENCY-STABLE WAVELETS 审中-公开
公开(公告)号：WO2003077430A3
公开(公告)日：2003-09-18
申请号：PCT/US2003/006621
申请日：2003-03-06
申请人： XTREMESPECTRUM, INC. , ROBERTS, Richard, D.
发明人： ROBERTS, Richard, D.
IPC分类号： H03B19/00
摘要： A method is provided for generating a frequency stable wavelet. Initially, a first sine wave is generated having a first frequency. The, a half sine wave window (720) is generated having a window frequency. The first sine wave and the half sine wave window are then mixed (740) to create the frequency stable wavelet. In this process the sine wave has a frequency greater than the half sine wave window so that the half sine wave window covers more than a single sine pulse. The half sine wave window can be created by generating a second sine wave (730) having a second frequency that is twice the window frequency, and then fully rectifying (735) the second sine wave. The wavelets created in this manner can be used for a variety of purposes, including correlating with a received signal or transmitting as a wireless signal.

4. 发明申请

WO2002031988A3 ULTRA WIDE BANDWIDTH NOISE CANCELLATION MECHANISM AND METHOD 审中-公开
公开(公告)号：WO2002031988A3
公开(公告)日：2002-04-18
申请号：PCT/US2001/031587
申请日：2001-10-10
申请人： XTREMESPECTRUM, INC.
发明人： MCCORKLE, John, W.
IPC分类号： H04L27/00
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.

5. 发明申请

WO03023962A8 NARROW-PULSE-WIDTH BIPOLAR MONOCYCLE GENERATOR 审中-公开
标题翻译： NARROW-PULSE-WIDTH BIPOLAR单电池发电机
公开(公告)号：WO03023962A8
公开(公告)日：2005-03-31
申请号：PCT/US0228220
申请日：2002-09-06
申请人： XTREMESPECTRUM INC , HUYNH PHUONG T , OCHOA AGUSTIN , MCCORKLE JOHN
发明人： HUYNH PHUONG T , OCHOA AGUSTIN , MCCORKLE JOHN
IPC分类号： H03K5/05 , H03K5/151 , H03K7/04 , H03K3/021
CPC分类号： H04B1/7174 , H03K5/05 , H03K5/151 , H03K7/04
摘要： A mono-cycle generating circuit includes a multiplexer, a pulse generating circuit, and a buffer circuit. The multiplexer receives data of a logical 1 or a logical 0, determines whether to generate a positive mono-cycle or a negative mono-cycle, based upon the data, and outputs clock signals varying in time based upon the data. The pulse generating circuit is coupled to the multiplexer, receives the clock signals and generates a first series of pulses including an up-pulse preceding a down-pulse, or a second series of pulses including a down-pulse preceding an up-pulse, in response to the clock signals received by the multiplexer. The buffer circuit is coupled to the pulse generating circuit and includes a switch circuit and a common mode buffer. The switch circuit generates the positive mono-cycle or the negative mono-cycle, based upon whether the first series of pulses is received from the pulse generating circuit or the second series of pulses is received from the pulse generating circuit. The common mode buffer circuit is coupled to the switching circuit and reduces noise generated by the switch circuit.
摘要翻译：单周期发生电路包括多路复用器，脉冲发生电路和缓冲电路。多路复用器接收逻辑1或逻辑0的数据，基于该数据确定是否产生正单周期或负单周期，并根据数据输出时间变化的时钟信号。脉冲发生电路耦合到多路复用器，接收时钟信号并产生包括在脉冲之前的上升脉冲或包括上升脉冲之前的下降脉冲的第二脉冲序列的第一序列脉冲，响应于多路复用器接收的时钟信号。缓冲电路耦合到脉冲发生电路，并包括开关电路和共模缓冲器。开关电路基于从脉冲发生电路接收到第一串脉冲还是从脉冲发生电路接收到第二脉冲串，产生正单周期或负单周期。共模缓冲电路耦合到开关电路并降低由开关电路产生的噪声。

6. 发明申请

WO2003077430A2 METHOD AND APPARATUS FOR GENERATING FREQUENCY-STABLE WAVELETS 审中-公开
标题翻译：用于产生频率稳定波段的方法和装置
公开(公告)号：WO2003077430A2
公开(公告)日：2003-09-18
申请号：PCT/US2003/006621
申请日：2003-03-06
申请人： XTREMESPECTRUM, INC. , ROBERTS, Richard, D.
发明人： ROBERTS, Richard, D.
IPC分类号： H04B
CPC分类号： H04L27/0004
摘要： A method is provided for generating a frequency stable wavelet. Initially, a first sine wave is generated having a first frequency. Then, a half sine wave window is generated having a window frequency. The first sine wave and the half sine wave window are then mixed to create the frequency stable wavelet. In this process the sine wave has a frequency greater than the half sine wave window so that the half sine wave window covers more than a single sine pulse. The half sine wave window can be created by generating a second sine wave having a second frequency that is twice the window frequency, and then fully rectifying the second sine wave. The wavelets created in this manner can be used for a variety of purposes, including correlating with a received signal or transmitting as a wireless signal.
摘要翻译：提供了一种用于产生频率稳定小波的方法。最初，产生具有第一频率的第一正弦波。然后，产生具有窗口频率的半正弦波窗口。然后将第一正弦波和半正弦波窗口混合以产生频率稳定小波。在该过程中，正弦波具有大于半正弦波窗口的频率，使得半正弦波窗口覆盖多于单个正弦波。可以通过产生具有窗口频率的两倍的第二频率的第二正弦波，然后完全校正第二正弦波来创建半正弦波窗口。以这种方式创建的小波可以用于各种目的，包括与接收信号相关或作为无线信号发射。

7. 发明申请

WO03063415A2 METHOD OF MANAGING TIME SLOTS IN A WIRELESS NETWORK THROUGH THE USE OF CONTENTION GROUPS 审中-公开
标题翻译：通过使用内容组管理无线网络中的时间段的方法
公开(公告)号：WO03063415A2
公开(公告)日：2003-07-31
申请号：PCT/US0301496
申请日：2003-01-21
申请人： XTREMESPECTRUM INC
发明人： ODMAN KNUT T
IPC分类号： H04L12/28 , H04L12/56 , H04L29/06 , H04L29/08 , H04L12/00
CPC分类号： H04W74/02 , H04L29/06 , H04L67/04 , H04L69/28 , H04L69/329 , H04W4/08 , H04W72/0446 , H04W74/0833 , H04W84/18
摘要： A method is provided for passing management frames between a network coordinator and a plurality of devices during a plurality of repeating superframes. The superframes are divided into repeating groups of consecutive superframes that form a superframe cycle. Each superframe has a set number of management time slots in it, which number can change. This creates a number of unique management time slots in each superframe cycle based on the number of superframes per cycle and the number of management time slots per superframe. The devices are assigned to a number of contention groups equal to the total number of management time slots in a superframe cycle. Each contention group is assigned a unique management time slot, and each device can only send management requests to the coordinator during the unique management time slot assigned to its contention group. Contention groups may have zero or one device in them.
摘要翻译：提供一种用于在多个重复超帧期间在网络协调器和多个设备之间传递管理帧的方法。超帧被划分为形成超帧周期的连续超帧的重复组。每个超帧都有一个设定的管理时间段，这个数字可以改变。这将根据每个周期的超帧数量和每个超帧的管理时隙数量，在每个超帧周期中创建许多独特的管理时隙。这些设备被分配到等于超帧周期中管理时隙总数的多个争用组。每个争用组被分配唯一的管理时隙，并且每个设备只能在分配给其争用组的唯一管理时隙期间向协调器发送管理请求。竞争组中可能有零个或一个设备。

8. 发明申请

WO0231998A9 WAVELET RECEIVER WITH REMOVAL OF DC OFFSET 审中-公开
标题翻译：移除直流偏置的小波接收器
公开(公告)号：WO0231998A9
公开(公告)日：2003-03-20
申请号：PCT/US0142500
申请日：2001-10-05
申请人： XTREMESPECTRUM INC , MCCORKLE JOHN
发明人： MCCORKLE JOHN
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 will 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到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交流偏置和直流偏置项和1 / f噪声，但检测到逻辑1和0的长序列，并允许操作将减少带宽转换器。

9. 发明申请

WO2003021778A3 MONOCYCLE GENERATOR 审中-公开
公开(公告)号：WO2003021778A3
公开(公告)日：2003-03-13
申请号：PCT/US2002/027965
申请日：2002-09-04
申请人： XTREMESPECTRUM, INC.
发明人： MCCORKLE, John, W. , HUYNH, Phuong, T. , OCHOA, Agustin
IPC分类号： H03K5/04
摘要： A monocycle forming network may include a monocycle generator, up and down pulse generators, data modulators and clock generation circuits. The network may generate monocycle pulses having very narrow pulse widths, approximately 80 picoseconds peak to peak. The monocycles may be modulated to carry data in ultra-wideband communication systems.

10. 发明申请

WO0231994A3 NARROWBAND INTERFERENCE SUPPRESSION IN AN ULTRA-WIDE BAND RECEIVER 审中-公开
标题翻译：超宽带接收机的窄带干扰抑制
公开(公告)号：WO0231994A3
公开(公告)日：2002-08-15
申请号：PCT/US0127746
申请日：2001-10-02
申请人： XTREMESPECTRUM INC
发明人： MCCORKLE JOHN W
IPC分类号： B60C19/12 , B29B7/18 , B29K21/00 , C08J3/20 , C08J3/205 , C08K5/33 , C09J121/00 , C09J123/16 , C09K3/10 , H04B1/7163 , H04B1/719 , 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 Ultra Wide Band (UWB) signal, in a receiver of the UWB signal. The Radio Frequency Interference (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超宽带（UWB）信号的宽频谱中去除“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用作UWB信号的一部分的输入小波匹配的脉冲响应，从较宽的频谱中提取射频干扰（RFI）以消除UWB信号的干扰接收到的脉冲响应与小波及其时移和反相版本匹配，使小波通过接收机无损检测，并切除窄带信号（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。

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