公开(公告)号：US09092782B1

公开(公告)日：2015-07-28

申请号：US13537506

申请日：2012-06-29

申请人： Alex Zaslavsky ,  Alon Kaufman ,  Yael Villa ,  Marcelo Blatt ,  Alex Vaystikh

发明人： Alex Zaslavsky ,  Alon Kaufman ,  Yael Villa ,  Marcelo Blatt ,  Alex Vaystikh

IPC分类号： G06F21/00 ,  G06Q20/40

CPC分类号： G06F21/577 ,  G06F21/45 ,  G06F2221/2131 ,  G06Q20/4016

摘要： Techniques are provided for evaluating compromised credential information. A method for evaluating compromised credentials comprises the steps of: collecting data regarding previously compromised credentials that were used to commit an unauthorized activity; applying one or more statistical learning methods to the collected data to identify one or more patterns; and evaluating a risk of credentials that have been compromised by one or more attackers using the identified patterns. According to a further aspect of the invention, a risk score is generated for one or more users and devices. The risk scores are optionally ordered based on an order of risk. The data can be collected, for example, from one or more of anti-fraud servers and information sources.

摘要翻译： 提供技术来评估受损的凭证信息。 用于评估受损凭据的方法包括以下步骤：收集关于用于提交未授权活动的先前被破坏的凭证的数据; 将一个或多个统计学习方法应用于所收集的数据以识别一个或多个模式; 并评估已被一个或多个攻击者使用识别的模式损害的凭据风险。 根据本发明的另一方面，为一个或多个用户和设备生成风险评分。 风险分数可根据风险顺序进行排序。 可以例如从一个或多个反欺诈服务器和信息源收集数据。

公开(公告)号：US06178220B1

公开(公告)日：2001-01-23

申请号：US09319062

申请日：1999-10-18

申请人： David Freundlich ,  Alex Zaslavsky ,  David Ruimi

发明人： David Freundlich ,  Alex Zaslavsky ,  David Ruimi

IPC分类号： A61B603

CPC分类号： G06T11/003 ,  A61B6/027

摘要： A method for reconstructing one or more non-axial image slices in a CT scanner, comprising: acquiring X-ray attenuation data over an axial range; and processing the attenuation data to determine CT values at a plurality of points along one or more surface corresponding respectively to each one or more non-axial image slices, wherein processing the attenuation data comprises back-projecting the data directly to the plurality of points along each of the one or more surfaces.

摘要翻译： 一种用于重构CT扫描器中的一个或多个非轴向图像切片的方法，包括：在轴向范围上获取X射线衰减数据; 以及处理所述衰减数据以确定沿着分别对应于每个一个或多个非轴向图像切片的一个或多个表面的多个点处的CT值，其中处理所述衰减数据包括将所述数据直接反向投影到所述多个点 每个一个或多个表面。

公开(公告)号：US08742863B1

公开(公告)日：2014-06-03

申请号：US13189595

申请日：2011-07-25

申请人： Alex Zaslavsky

发明人： Alex Zaslavsky

IPC分类号： H03L1/02 ,  H03B5/32 ,  H04B1/40

CPC分类号： H03L1/026

摘要： A communication terminal includes a crystal oscillator, a transceiver and circuitry. The crystal oscillator belongs to a specified type in which a dependence of an output frequency on temperature has one or more temperature dependence coefficients. The transceiver is arranged to operate an AFC loop having an initial frequency accuracy requirement that is more stringent than an uncompensated frequency accuracy of the crystal oscillator. The circuitry is arranged to determine output frequencies of the crystal oscillator at respective operating temperatures, to compute the temperature dependence coefficients based on the output frequencies and operating temperatures, to correct a frequency error in the output frequency using the dependence and the temperature dependence coefficients, to ascertain that the corrected frequency error meets the initial frequency accuracy requirement, and to subsequently correct a frequency of the received signal using the AFC loop.

摘要翻译： 通信终端包括晶体振荡器，收发器和电路。 晶体振荡器属于指定类型，其中输出频率对温度的依赖性具有一个或多个温度依赖系数。 收发器被布置成操作具有比未经补偿的晶体振荡器的频率精度更严格的初始频率精度要求的AFC回路。 电路被布置成确定晶体振荡器在相应工作温度下的输出频率，以便根据输出频率和工作温度来计算温度依赖系数，以使用依赖性和温度依赖系数校正输出频率中的频率误差， 以确定校正的频率误差满足初始频率精度要求，并且随后使用AFC回路校正接收信号的频率。

公开(公告)号：US07738594B2

公开(公告)日：2010-06-15

申请号：US11479900

申请日：2006-06-30

申请人： Eliav Zipper ,  Alex Zaslavsky

发明人： Eliav Zipper ,  Alex Zaslavsky

IPC分类号： H04K1/02

CPC分类号： H03F1/32 ,  H03F3/245

摘要： The peak-to-average power ratio at the output of an rf power amplifier is detected and compared with, for instance, an ideal ratio. The result of this comparison is used to control the amplifier, particularly to reduce distortion in the output signal.

摘要翻译： 检测rf功率放大器的输出端的峰均功率比，并与例如理想比进行比较。 该比较的结果用于控制放大器，特别是减少输出信号的失真。

公开(公告)号：US20080002787A1

公开(公告)日：2008-01-03

申请号：US11479900

申请日：2006-06-30

申请人： Eliav Zipper ,  Alex Zaslavsky

发明人： Eliav Zipper ,  Alex Zaslavsky

IPC分类号： H04L25/49

CPC分类号： H03F1/32 ,  H03F3/245

摘要： The peak-to-average power ratio at the output of an rf power amplifier is detected and compared with, for instance, an ideal ratio. The result of this comparison is used to control the amplifier, particularly to reduce distortion in the output signal.

摘要翻译： 检测rf功率放大器的输出端的峰均功率比，并与例如理想比进行比较。 该比较的结果用于控制放大器，特别是减少输出信号的失真。

公开(公告)号：US08781536B1

公开(公告)日：2014-07-15

申请号：US13351273

申请日：2012-01-17

申请人： Alex Zaslavsky ,  Rony Ashkenazi

发明人： Alex Zaslavsky ,  Rony Ashkenazi

IPC分类号： H04B1/38

CPC分类号： H04W52/52 ,  H03F3/195 ,  H03F3/24 ,  H03F2200/102 ,  H03F2200/336 ,  H03F2200/393 ,  H03F2200/411 ,  H03G3/3042 ,  H04B1/04 ,  H04B2001/0416 ,  H04W52/146

摘要： A method for controlling output signal power in a communication terminal includes accepting, from first and second measurement points along a transmission chain in a transmitter of the terminal, respective first and second signal representations of a communication signal to be transmitted by the communication terminal. A cross-correlation is computed between the first and second signal representations accepted from the first and second measurement points. An actual gain between the first and second measurement points is computed using the cross-correlation. An output power of the communication signal is adjusted by setting a gain of the transmitter responsively to the actual gain.

摘要翻译： 一种用于控制通信终端中的输出信号功率的方法包括：沿着终端的发射机中的传输链从第一和第二测量点接收要由通信终端发送的通信信号的各自的第一和第二信号表示。 在从第一和第二测量点接受的第一和第二信号表示之间计算互相关。 使用互相关计算第一和第二测量点之间的实际增益。 响应于实际增益设定发送器的增益来调整通信信号的输出功率。

公开(公告)号：US08600455B1

公开(公告)日：2013-12-03

申请号：US13330715

申请日：2011-12-20

申请人： Alex Zaslavsky ,  Rony Ashkenazi

发明人： Alex Zaslavsky ,  Rony Ashkenazi

IPC分类号： H04B1/38

CPC分类号： H03G3/3042 ,  H03F2200/102 ,  H03F2200/393 ,  H04B2001/0416 ,  H04W52/146 ,  H04W52/52

摘要： A method for controlling output signal power in a communication terminal includes determining envelopes of a communication signal to be transmitted by the communication terminal at respective first and second measurement points along a transmission chain in a transmitter of the terminal. A cross-correlation is computed between the envelopes determined at the first and second measurement points. An actual gain between the first and second measurement points is computed using the cross-correlation. An output power of the communication signal is adjusted by setting a gain of the transmitter responsively to the actual gain.

摘要翻译： 一种用于控制通信终端中的输出信号功率的方法，包括确定通信终端在沿着终端的发射机中的传输链的各个第一和第二测量点发射的通信信号的包络。 在第一和第二测量点确定的包络之间计算互相关。 使用互相关计算第一和第二测量点之间的实际增益。 响应于实际增益设定发送器的增益来调整通信信号的输出功率。

公开(公告)号：US08099139B1

公开(公告)日：2012-01-17

申请号：US12397366

申请日：2009-03-04

申请人： Alex Zaslavsky ,  Rony Ashkenazi

发明人： Alex Zaslavsky ,  Rony Ashkenazi

IPC分类号： H04B1/38

CPC分类号： H03G3/3042 ,  H03F2200/102 ,  H03F2200/393 ,  H04B2001/0416 ,  H04W52/146 ,  H04W52/52

摘要： A method for controlling output signal power in a communication terminal includes determining envelopes of a communication signal to be transmitted by the communication terminal at respective first and second measurement points along a transmission chain in a transmitter of the terminal. A cross-correlation is computed between the envelopes determined at the first and second measurement points. An actual gain between the first and second measurement points is computed using the cross-correlation. An output power of the communication signal is adjusted by setting a gain of the transmitter responsively to the actual gain.

摘要翻译： 一种用于控制通信终端中的输出信号功率的方法，包括确定通信终端在沿着终端的发射机中的传输链的各个第一和第二测量点发射的通信信号的包络。 在第一和第二测量点确定的包络之间计算互相关。 使用互相关计算第一和第二测量点之间的实际增益。 响应于实际增益设定发送器的增益来调整通信信号的输出功率。

公开(公告)号：US08031024B1

公开(公告)日：2011-10-04

申请号：US12394056

申请日：2009-02-27

申请人： Alex Zaslavsky

发明人： Alex Zaslavsky

IPC分类号： H03L1/02 ,  H03B5/32 ,  H04B1/40

CPC分类号： H03L1/026

摘要： A wireless communication terminal includes a crystal oscillator, a transceiver and circuitry. The crystal oscillator belongs to a specified type of crystal oscillators in which a dependence of an output frequency as a function of temperature has one or more parameters that vary among the crystal oscillators belonging to the specified type. The transceiver is arranged to perform signal processing operations to a communication signal using the output frequency of the crystal oscillator. The circuitry is arranged to determine a characteristic of the output frequency of the crystal oscillator at one or more operating temperatures, to compute the one or more parameters for the crystal oscillator based on the determined characteristic and the operating temperatures, and to correct a frequency error in the output frequency of the crystal oscillator using the dependence and the computed parameters.

摘要翻译： 无线通信终端包括晶体振荡器，收发器和电路。 晶体振荡器属于指定类型的晶体振荡器，其中作为温度的函数的输出频率的依赖性具有在属于指定类型的晶体振荡器之间变化的一个或多个参数。 收发器被配置为使用晶体振荡器的输出频率对通信信号执行信号处理操作。 该电路被布置成在一个或多个工作温度下确定晶体振荡器的输出频率的特性，以根据所确定的特性和工作温度来计算晶体振荡器的一个或多个参数，并且校正频率误差 在使用依赖性和计算参数的晶体振荡器的输出频率中。