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31. 发明授权

US08472579B2 Distributed digital reference clock 有权
标题翻译：分布式数字参考时钟
公开(公告)号：US08472579B2
公开(公告)日：2013-06-25
申请号：US12845060
申请日：2010-07-28
申请人： Lance K. Uyehara , Larry G. Fischer , David Hart , Dean Zavadsky
发明人： Lance K. Uyehara , Larry G. Fischer , David Hart , Dean Zavadsky
IPC分类号： H04L7/00
CPC分类号： H04L7/0008 , H04B1/40 , H04J3/0685 , H04W28/04
摘要： A communication system includes master host unit, hybrid expansion unit, and remote antenna unit. Master host unit communicates analog signals with service provider interfaces. Master host unit and hybrid expansion unit communicate N-bit words of digitized spectrum over communication link. Hybrid expansion unit converts between N-bit words and analog spectrum. Hybrid expansion unit and remote antenna unit communicate analog spectrum over analog communication medium. Remote antenna unit transmits and receives wireless signals over air interfaces. Master host unit includes master clock distribution unit that generates digital master reference clock signal. Master host unit communicates digital master reference clock signal over communication link. Hybrid expansion unit receives digital master reference clock signal from master host unit over communication link and generates analog reference clock signal based on digital master reference clock signal. Hybrid expansion unit sends, and remote antenna unit receives, analog reference clock signal across analog communication medium.
摘要翻译：通信系统包括主机单元，混合扩展单元和远程天线单元。主机主机与模拟信号与业务提供者接口通信。主机单元和混合扩展单元通过通信链路传送数字化频谱的N位字。混合扩展单元在N位字和模拟频谱之间进行转换。混合扩展单元和远程天线单元通过模拟通信介质通信模拟频谱。远程天线单元通过空中接口发送和接收无线信号。主机主机包括产生数字主机参考时钟信号的主时钟分配单元。主机主机通过通信链路传送数字主参考时钟信号。混合扩展单元通过通信链路从主机单元接收数字主参考时钟信号，并根据数字主机参考时钟信号产生模拟参考时钟信号。混合扩展单元发送，远程天线单元接收模拟通信介质上的模拟参考时钟信号。

32. 发明申请

US20120177026A1 DISTINCT TRANSPORT PATH FOR MIMO TRANSMISSIONS IN DISTRIBUTED ANTENNA SYSTEMS 有权
标题翻译：用于分布式天线系统中的MIMO传输的DISTINCT传输路径
公开(公告)号：US20120177026A1
公开(公告)日：2012-07-12
申请号：US13004998
申请日：2011-01-12
申请人： Lance K. Uyehara , David Hart , Dean Zavadsky , Larry G. Fischer
发明人： Lance K. Uyehara , David Hart , Dean Zavadsky , Larry G. Fischer
IPC分类号： H04L27/28 , H04J3/00
CPC分类号： H04B7/0413 , H04B1/18 , H04B1/40
摘要： A hybrid expansion unit includes at least one digital communication interface adapted to communicate first and second sets of N-bit words of digitized spectrum with an upstream device. The hybrid expansion unit further includes at least one analog communication interface adapted to communicate first and second sets of bands of analog spectrum with a downstream device. The hybrid expansion unit is adapted to convert between the first set of N-bit words of digitized spectrum and the first set of bands of analog spectrum. The hybrid expansion unit is further adapted to convert between the second set of N-bit words of digitized spectrum and the second set of bands of analog spectrum. The first set of bands of analog spectrum occupy a first frequency range and the second set of bands of analog spectrum occupy a second frequency range. The first frequency range and the second frequency range do not overlap.
摘要翻译：混合扩展单元包括至少一个数字通信接口，其适于将数字化频谱的第一和第二组N位字与上游设备进行通信。混合扩展单元还包括至少一个模拟通信接口，其适于将模拟频谱的第一和第二组频带与下游设备进行通信。混合扩展单元适于在数字化频谱的第一组N位字与模拟频谱的第一组频带之间进行转换。混合扩展单元还适于在数字化频谱的第二组N位字与模拟频谱的第二组频带之间进行转换。模拟频谱的第一组频带占据第一频率范围，而第二组模拟频谱带占据第二频率范围。第一频率范围和第二频率范围不重叠。

33. 发明申请

US20120027145A1 DISTRIBUTED DIGITAL REFERENCE CLOCK 有权
标题翻译：分布式数字参考时钟
公开(公告)号：US20120027145A1
公开(公告)日：2012-02-02
申请号：US12845060
申请日：2010-07-28
申请人： Lance K. Uyehara , Larry G. Fischer , David Hart , Dean Zavadsky
发明人： Lance K. Uyehara , Larry G. Fischer , David Hart , Dean Zavadsky
IPC分类号： H04L7/00
CPC分类号： H04L7/0008 , H04B1/40 , H04J3/0685 , H04W28/04
摘要： A communication system includes master host unit, hybrid expansion unit, and remote antenna unit. Master host unit communicates analog signals with service provider interfaces. Master host unit and hybrid expansion unit communicate N-bit words of digitized spectrum over communication link. Hybrid expansion unit converts between N-bit words and analog spectrum. Hybrid expansion unit and remote antenna unit communicate analog spectrum over analog communication medium. Remote antenna unit transmits and receives wireless signals over air interfaces. Master host unit includes master clock distribution unit that generates digital master reference clock signal. Master host unit communicates digital master reference clock signal over communication link. Hybrid expansion unit receives digital master reference clock signal from master host unit over communication link and generates analog reference clock signal based on digital master reference clock signal. Hybrid expansion unit sends, and remote antenna unit receives, analog reference clock signal across analog communication medium.
摘要翻译：通信系统包括主机单元，混合扩展单元和远程天线单元。主机主机与模拟信号与业务提供者接口通信。主机单元和混合扩展单元通过通信链路传送数字化频谱的N位字。混合扩展单元在N位字和模拟频谱之间进行转换。混合扩展单元和远程天线单元通过模拟通信介质通信模拟频谱。远程天线单元通过空中接口发送和接收无线信号。主机主机包括产生数字主机参考时钟信号的主时钟分配单元。主机主机通过通信链路传送数字主参考时钟信号。混合扩展单元通过通信链路从主机单元接收数字主参考时钟信号，并根据数字主机参考时钟信号产生模拟参考时钟信号。混合扩展单元发送，远程天线单元接收模拟通信介质上的模拟参考时钟信号。

34. 发明申请

US20080071132A1 Brachytherapy apparatus and method for treating tissue forming an internal body cavity 审中-公开
标题翻译：近距离放射治疗仪和治疗组织形成内部体腔的方法
公开(公告)号：US20080071132A1
公开(公告)日：2008-03-20
申请号：US11880178
申请日：2007-07-20
申请人： Gary Lamoureux , David Hart , Richard Terwilliger
发明人： Gary Lamoureux , David Hart , Richard Terwilliger
IPC分类号： A61M36/12
CPC分类号： A61N5/1015 , A61F2/82 , A61M25/10 , A61N2005/1018
摘要： A brachytherapy apparatus and method are provided for treating tissue forming an internal body cavity, such as an excised breast or brain tumor bed. The apparatus has at least one outer wall that is movable between (i) a retracted position spaced inwardly relative to tissue forming the internal body cavity, and (ii) an expanded position spaced outwardly and contiguous to tissue forming the internal body cavity. The outer wall is formed by a stent, a balloon catheter, or a plurality of axially-elongated solid or hollow flexible members that are angularly spaced relative to each other. A plurality of radiation sources are carried by the at least one outer wall and movable therewith between the retracted and expanded positions for transmitting radiation in the expanded position into the tissue forming the internal body cavity.
摘要翻译：提供了一种近距离放射治疗装置和方法，用于治疗形成内部体腔的组织，例如切除的乳房或脑肿瘤床。所述装置具有至少一个外壁，所述至少一个外壁可在（i）相对于形成所述内部体腔的组织向内间隔的缩回位置和（ii）向外间隔开并与构成所述内部体腔的组织邻接的扩张位置之间移动。外壁由相对于彼此成角度间隔开的支架，球囊导管或多个轴向细长的实心或中空的柔性构件形成。多个辐射源由所述至少一个外壁承载并且可在缩回位置和扩展位置之间移动，用于将展开位置的辐射传送到形成内部体腔的组织中。

35. 发明授权

US5805395A Half-cycle summation V/Hz relay for generator and transformer over-excitation protection 失效
标题翻译：用于发电机和变压器过励磁保护的半周期求和V / Hz继电器
公开(公告)号：US5805395A
公开(公告)日：1998-09-08
申请号：US766715
申请日：1996-12-13
申请人： Yi Hu , David Hart , Damir Novosel , Robert Smith
发明人： Yi Hu , David Hart , Damir Novosel , Robert Smith
IPC分类号： H02H7/04 , H02H7/06
CPC分类号： H02H7/04 , H02H7/06
摘要： A system for implementing accurate V/Hz value measurement and trip time determination for generator/transformer overexcitation protection independent of the conventional frequency tracking and phasor estimation based on Discrete Fourier Transformation (DFT) techniques. The half-cycle summation technique of the invention is a non-recursive digital technique which measures the per unit V/Hz value by summing the sampled data points in every half cycle of a sinusoidal input signal and dividing the sum with the ideal base sum value. When the input voltage signal is sampled at a reasonable frequency, the technique of the invention approximates the accurate per unit V/Hz value of the input voltage signal and thus obtains an accurate V/Hz characteristic directly without computing voltage and frequency separately.
摘要翻译：一种用于实现发电机/变压器过励磁保护的精确V / Hz值测量和跳闸时间确定的系统，与传统的基于离散傅里叶变换（DFT）技术的频率跟踪和相量估计无关。本发明的半周期求和技术是一种非递归数字技术，其通过将正弦输入信号的每半个周期中的采样数据点相加并且将和除以理想基本和值来测量每单位V / Hz值。当以合理的频率对输入电压信号进行采样时，本发明的技术近似于输入电压信号的每单位V / Hz值的准确度，从而直接获得精确的V / Hz特性，而不分别计算电压和频率。

36. 发明授权

US10059587B2 Ozone generator 有权
公开(公告)号：US10059587B2
公开(公告)日：2018-08-28
申请号：US15177566
申请日：2016-06-09
申请人： David Hart
发明人： David Hart
IPC分类号： C01B13/11
CPC分类号： C01B13/11 , C01B2201/12
摘要： An ozone generator is contained in a housing having a fan for inducing air flow through the housing and over an ozone generating plate where atmospheric oxygen is electrochemically converted to ozone, which flows out of the housing through a grid opening. The ozone generating plate is defined by a glass plate having electrically conductive grids on both sides thereof and each grid is electrically powered to create corona discharge from the conductor; as air and oxygen in the air flows over the plate it is converted to ozone.

37. 发明申请

US20150328350A1 Apparatus and Method for Sanitizing 审中-公开
标题翻译：消毒的设备和方法
公开(公告)号：US20150328350A1
公开(公告)日：2015-11-19
申请号：US14706018
申请日：2015-05-07
申请人： David Hart
发明人： David Hart
IPC分类号： A61L2/22 , B05B7/24
CPC分类号： B05B13/0627 , B05B1/046 , B05B1/267 , B05B7/1606 , B05B7/2405 , B05B7/2416 , B05B7/2489
摘要： An apparatus and system that efficiently and effectively delivers a sanitizing fluid to ducts in the form of a fog or mist is described. A canister that contains a liquid sanitizing solution is attached to a compressor and includes a straw that has an internal passageway that extends into the liquid and a venturi tube above the level of the liquid that connects with the internal passageway in the straw. The headspace above the liquid in the canister is pressurized, causing fluid to flow upwardly in the straw when a trigger is depressed, drawing fluid upwardly in part by the venturi. As the liquid passes the venturi the pressurized air that is flowing into the venturi causes the fluid to form a fine mist. The mist, under pressure from the compressor, is routed into a flexible delivery tube that has been previously positioned in a duct system. The terminal end of the tube has an atomizing ball attached thereto and the atomizing ball has a series of orifices through which the misted, atomized fluid is delivered. As fogged sanitizing solution flows through the orifices it is deposited on the interior surfaces of the duct. The delivery tube and the attached atomizing ball are withdrawn from the duct as the sanitizing fog is emitted from the ball. The fan in the HVAC system is not activated so there is no deliver of the sanitizer through registers and into the living space. The apparatus and method may be used to apply other fluids to other surfaces.
摘要翻译：描述了以雾或雾形式有效且有效地将消毒液输送到管道的装置和系统。包含液体消毒溶液的罐连接到压缩机，并且包括具有延伸到液体中的内部通道的吸管和在与吸管中的内部通道连接的液体水平面上方的文氏管。在罐中的液体上方的顶部空间被加压，当触发器被压下时，流体在秸秆中向上流动，部分地由文丘里管向上抽吸流体。当液体通过文氏管时，流入文丘里管的加压空气导致流体形成细雾。来自压缩机的压力下的雾被引导到先前位于管道系统中的柔性输送管中。管的末端具有附着在其上的雾化球，并且雾化球具有一系列孔口，雾化的雾化流体通过该孔口被输送。当雾化的消毒溶液流过孔口时，其沉积在管道的内表面上。当从球发出消毒雾时，输送管和附着的雾化球从管道中排出。 HVAC系统中的风扇没有被激活，所以没有通过寄存器和生活空间来提供消毒剂。该装置和方法可用于将其它流体施加到其它表面。

38. 发明申请

US20070233949A1 AMORPHOUS RAID 失效
公开(公告)号：US20070233949A1
公开(公告)日：2007-10-04
申请号：US11277819
申请日：2006-03-29
申请人： David Hart
发明人： David Hart
IPC分类号： G06F12/16 , G06F12/14
CPC分类号： G06F3/064 , G06F3/0619 , G06F3/0689 , G06F2211/1004
摘要： A computer implemented method, data processing system, and computer program product for maximizing the amount of data protected in a Redundant Array of Independent Disks (RAID) storage system. When a request to configure a plurality of physical disk drives into a Redundant Array of Independent Disks is received, each of the plurality of physical disk drives is divided into blocks of data based on a least common denominator. The blocks of data are then arranged to form valid Redundant Array of Independent Disks parity sets, thereby maximizing the amount of data protected in the Redundant Array of Independent Disks.
摘要翻译：一种计算机实现的方法，数据处理系统和用于最大化独立磁盘冗余阵列（RAID）存储系统中保护的数据量的计算机程序产品。当接收到将多个物理磁盘驱动器配置成独立磁盘的冗余阵列的请求时，多个物理磁盘驱动器中的每一个基于最小公分母被划分为数据块。然后将数据块安排成形成有效的独立磁盘冗余阵列奇偶校验集，从而最大化独立磁盘冗余阵列中保护的数据量。

39. 发明授权

US06801767B1 Method and system for distributing multiband wireless communications signals 有权
标题翻译：分配多频无线通信信号的方法和系统
公开(公告)号：US06801767B1
公开(公告)日：2004-10-05
申请号：US09771320
申请日：2001-01-26
申请人： Adam L. Schwartz , David Hart , John Eisenberg , Peter Forth
发明人： Adam L. Schwartz , David Hart , John Eisenberg , Peter Forth
IPC分类号： H04Q720
CPC分类号： H04B10/25755 , H04B1/40
摘要： This invention provides a method and system for distributing multiband wireless communications signals. Downlink RF signals in a plurality of downlink frequency bands are received and then combined into a combined downlink RF signal at the main unit. The combined downlink RF signal is subsequently split into multiple downlink RF-parts, which are converted to multiple downlink optical signals and optically transmitted to the remote units. At each remote unit, a delivered downlink optical signal is first converted back to a downlink RF-part which is subsequently separated into a plurality of downlink RF-groups by frequency band. Each downlink RF-group is individually conditioned (e.g., filtered and amplified). The individual-conditioned downlink RF-groups are then combined and transmitted to a dedicated downlink antenna.
摘要翻译：本发明提供一种用于分配多频带无线通信信号的方法和系统。接收多个下行链路频带中的下行链路RF信号，然后将其组合成主单元的组合下行链路RF信号。组合的下行链路RF信号随后被分割成多个下行链路RF部分，其被转换为多个下行链路光信号并被光传输到远程单元。在每个远程单元处，首先将传送的下行链路光信号转换回下行链路RF部分，随后通过频带分离成多个下行链路RF组。每个下行链路RF组被单独调节（例如，滤波和放大）。然后将各个条件的下行链路RF组合并发送到专用下行链路天线。

40. 发明授权

US06466031B1 Systems and methods for locating faults on a transmission line with multiple tapped loads 有权
标题翻译：用于定位具有多个轻敲负载的传输线上的故障的系统和方法
公开(公告)号：US06466031B1
公开(公告)日：2002-10-15
申请号：US09752892
申请日：2000-12-29
申请人： Yi Hu , David Lubkeman , Reto Buettner , David Hart
发明人： Yi Hu , David Lubkeman , Reto Buettner , David Hart
IPC分类号： G01R3108
CPC分类号： G01R31/085
摘要： A fault is located in a transmission line with a sending end, a receiving end, and a plurality of tapped nodes, and multiple tapped loads connected to the transmission line at tap nodes. The sending end and the receiving end each include a measuring device. The fault location is determined by obtaining measured circuit parameters including measured pre-fault and faulted current and voltage values at the sending end and at the receiving end of the transmission line. An equivalent tap node location is calculated using measured pre-fault and faulted current and voltage values at the sending end and at the receiving end of the transmission line. The equivalent tap node divides the transmission line into a sending side and a receiving side. The phase angle difference due to unsynchronized measurement using the measured pre-fault current and the measured pre-fault voltage values may be calculated. The equivalent load impedance of the tapped loads is calculated. A first fault location is calculated assuming that the fault is located on the sending side of the equivalent tap node. A second fault location is calculated assuming that the fault is located on the receiving side of the equivalent tap node. The fault location is selected from one of the first fault location and the second fault location, by selecting the fault location having a value within a predetermined range representing a full distance between two nodes.
摘要翻译：故障位于具有发送端，接收端和多个抽头节点的传输线中，并且在分接节点处连接到传输线的多个抽头负载。发送端和接收端各自包括测量装置。通过获得测量的电路参数来确定故障位置，该电路参数包括传输线的发送端和接收端的测量故障前和故障电流和电压值。使用发送端和传输线接收端的测量故障前和故障电流和电压值计算等效抽头节点位置。等效抽头节点将传输线划分为发送侧和接收端。可以计算使用测量的故障前电流和测量的故障前电压值的不同步测量的相位角差。计算抽头负载的等效负载阻抗。假设故障位于等效抽头节点的发送侧，则计算第一个故障位置。假定故障位于等效抽头节点的接收侧，则计算第二个故障位置。通过选择具有表示两个节点之间的全距离的预定范围内的值的故障位置，从第一故障位置和第二故障位置中选择故障位置。

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