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51. 发明申请

US20140354344A1 TEST AND MEASUREMENT INSTRUMENT INCLUDING ASYNCHRONOUS TIME-INTERLEAVED DIGITIZER USING HARMONIC MIXING 有权
标题翻译：测试和测量仪器包括使用谐波混合的异步时间互换数字
公开(公告)号：US20140354344A1
公开(公告)日：2014-12-04
申请号：US14229307
申请日：2014-03-28
申请人： Tektronix, Inc.
发明人： Daniel G. Knierim , John J. Pickerd
IPC分类号： H03M1/12 , G01R23/14
CPC分类号： H03M1/121 , G01R13/0272 , G01R23/14 , H03M1/1215
摘要： A test and measurement instrument including a splitter configured to split an input signal having a particular bandwidth into a plurality of split signals, each split signal including substantially the entire bandwidth of the input signal; a plurality of harmonic mixers, each harmonic mixer configured to mix an associated split signal of the plurality of split signals with an associated harmonic signal to generate an associated mixed signal; and a plurality of digitizers, each digitizer configured to digitize a mixed signal of an associated harmonic mixer of the plurality of harmonic mixers. A first-order harmonic of at least one harmonic signal associated with the harmonic mixers is different from an effective sample rate of at least one of the digitizers.
摘要翻译：一种测试和测量仪器，包括分配器，其被配置为将具有特定带宽的输入信号分割成多个分离信号，每个分离信号基本上包括输入信号的整个带宽; 多个谐波混合器，每个谐波混频器被配置为将所述多个分离信号的相关联的分离信号与相关联的谐波信号混合以产生相关联的混合信号; 以及多个数字转换器，每个数字转换器被配置为数字化多个谐波混频器中相关联的谐波混频器的混合信号。与谐波混频器相关联的至少一个谐波信号的一阶谐波与至少一个数字化仪的有效采样率不同。

52. 发明申请

US20140239938A1 LINE FREQUENCY DETECTOR 有权
标题翻译：线频检测器
公开(公告)号：US20140239938A1
公开(公告)日：2014-08-28
申请号：US14188610
申请日：2014-02-24
申请人： Dialog Semiconductor Inc.
发明人： John W. Kesterson
IPC分类号： G01R23/14
CPC分类号： G01R23/06 , G01R19/2513
摘要： A line frequency detector receives an input signal representing a power source and detects a line frequency of the power source based on the input signal. The line frequency detector includes a first band pass filter having a pass band centered at an upper end of an expected frequency range of the power source and a second band pass filter having a pass band centered at a lower end of the expected frequency range. The input signal is filtered by the first and second band pass filters, generating a first characteristic signal and a second characteristic signal. The line frequency detector determines a characteristic ratio between the first characteristic signal and the second characteristic signal, and maps the characteristic ratio to the line frequency of the power source.
摘要翻译：线路频率检测器接收表示电源的输入信号，并根据输入信号检测电源的线路频率。线路频率检测器包括：第一带通滤波器，其具有以电源的期望频率范围的上端为中心的通带;以及第二带通滤波器，其具有以预期频率范围的下限为中心的通带。输入信号由第一和第二带通滤波器滤波，产生第一特征信号和第二特征信号。线路频率检测器确定第一特征信号和第二特征信号之间的特征比，并将特征比映射到电源的线路频率。

53. 发明申请

US20140035560A1 METHOD AND APPARATUS FOR LIMITING ACCESS TO AN INTEGRATED CIRCUIT (IC) 有权
标题翻译：限制访问集成电路（IC）的方法和装置
公开(公告)号：US20140035560A1
公开(公告)日：2014-02-06
申请号：US13566363
申请日：2012-08-03
申请人： Alfredo Olmos , James R. Feddeler , Miten H. Nagda , Stefano Pietri
发明人： Alfredo Olmos , James R. Feddeler , Miten H. Nagda , Stefano Pietri
IPC分类号： G01R23/14
CPC分类号： G06F21/81 , G01R31/31719 , G06F1/14 , G06F1/28
摘要： A method and apparatus for limiting access to an integrated circuit (IC) upon detection of abnormal conditions is provided. At least one of abnormal voltage detection, abnormal temperature detection, and abnormal clock detection are provided with low power consumption. Both abnormally low and abnormally high parameter values (e.g. abnormally low or high voltage, temperature, or clock frequency) may be detected. Abnormal clock detection may also detect a stopped clock signal, including a clock signal stopped at a low logic level or at a high logic level. Furthermore, abnormal clock detection may detect an abnormal duty cycle of a clock signal. A sampled bandgap reference may be used to provide accurate voltage and current references while consuming a minimal amount of power. Upon detection of an abnormal parameter value, one or more tamper indications may be provided to initiate tampering countermeasures, such as limiting access to the IC.
摘要翻译：提供了一种在检测到异常状况时限制对集成电路（IC）的访问的方法和装置。以低功耗提供异常电压检测，异常温度检测和异常时钟检测中的至少一种。可以检测异常低和异常高的参数值（例如异常低或高电压，温度或时钟频率）。异常时钟检测还可以检测停止的时钟信号，包括以低逻辑电平或高逻辑电平停止的时钟信号。此外，异常时钟检测可以检测时钟信号的异常占空比。采样的带隙基准可用于提供精确的电压和电流参考，同时消耗最小的功率。在检测到异常参数值时，可以提供一个或多个篡改指示以启动篡改对策，例如限制对IC的访问。

54. 发明申请

US20120161749A1 METHOD FOR MEASURING ABSOLUTE MAGNITUDES AND ABSOLUTE PHASE RELATIONSHIPS OVER A WIDE BANDWIDTH 失效
标题翻译：用于测量绝对磁珠的方法和宽带带宽的绝对相位关系
公开(公告)号：US20120161749A1
公开(公告)日：2012-06-28
申请号：US13416081
申请日：2012-03-09
申请人： Ben K. Sternberg , Steven L. Dvorak
发明人： Ben K. Sternberg , Steven L. Dvorak
IPC分类号： G01R23/14
CPC分类号： H04B17/21 , H04B17/101
摘要： A new measurement system, with two receiver channels per measurement port, has been developed that provides absolute magnitude and absolute phase relationship measurements over wide bandwidths. Gain ranging is used at RF to provide optimum noise performance and a swept YIG preselector filter is used to avoid spurious signals. A new absolute vector error correction method is used to calibrate the measurement system in order to allow for absolute vector measurements, and it also removes the time-varying responses caused by the swept YIG preselector filters. A quasi-reciprocal mixer with a characterized non-reciprocal ratio is used to provide the absolute calibration standard. The two receiver channels can be adapted to a wide variety of applications, including wide bandwidth vector signal analyzer measurements, mixer measurements, and harmonic measurements. The two-channels can also be used as an absolute calibrated transmitter/reflectometer.
摘要翻译：已经开发了一种新的测量系统，每个测量端口具有两个接收器通道，在宽带宽上提供绝对幅度和绝对相位关系测量。增益范围用于RF以提供最佳噪声性能，并且使用扫频YIG预选器滤波器来避免杂散信号。使用新的绝对向量误差校正方法来校准测量系统，以便允许绝对矢量测量，并且还消除由扫描YIG预选器滤波器引起的时变响应。使用具有特征不可逆比率的准互易混合器来提供绝对校准标准。两个接收器通道可以适用于各种应用，包括宽带矢量信号分析仪测量，混频器测量和谐波测量。双通道也可用作绝对校准的发射器/反射计。

55. 发明申请

US20110215795A1 DETECTOR AND DETECTION METHOD 审中-公开
标题翻译：检测和检测方法
公开(公告)号：US20110215795A1
公开(公告)日：2011-09-08
申请号：US13106663
申请日：2011-05-12
申请人： Tsuyoshi HIRAKI , Yasuhiko TOMIKAWA , Mayumi YASUKOUCHI , Teruhiko IZUMI
发明人： Tsuyoshi HIRAKI , Yasuhiko TOMIKAWA , Mayumi YASUKOUCHI , Teruhiko IZUMI
IPC分类号： G01R23/14
CPC分类号： G11B20/10009 , G11B7/005 , G11B20/10027 , G11B20/10037 , G11B20/10046 , G11B2220/2537
摘要： A detector obtains an output signal from an input signal containing a target signal and outputs the output signal. The detector includes an amplifier configured to receive the input signal and the output signal, compare the input signal to the output signal to output a comparison result; an envelope generator configured to weight a first value and a second value having a sign opposite to that of the first value in accordance with the comparison result, integrate the weighted first value and the weighted second value, and output an integration result as the output signal; and a controller configured to control the envelope generator in accordance with the input signal. The controller controls the envelope generator to mitigate an increase in an absolute value of the integration result when the input signal contains a frequency component other than a frequency component of the target signal.
摘要翻译：检测器从包含目标信号的输入信号中获得输出信号，并输出输出信号。检测器包括：放大器，被配置为接收输入信号和输出信号，将输入信号与输出信号进行比较以输出比较结果; 被配置为根据比较结果加权第一值和具有与第一值相反的符号的第二值的包络发生器，积分加权的第一值和加权的第二值，并输出积分结果作为输出信号 ; 以及控制器，被配置为根据输入信号控制包络发生器。当输入信号包含除了目标信号的频率分量之外的频率分量时，控制器控制包络发生器以减轻积分结果的绝对值的增加。

56. 发明授权

US07868607B2 Test method for frequency converters with embedded local oscillators 有权
标题翻译：带嵌入式本地振荡器的变频器的测试方法
公开(公告)号：US07868607B2
公开(公告)日：2011-01-11
申请号：US11738051
申请日：2007-04-20
申请人： Joel P. Dunsmore , Sean Hubert , Loren C. Betts , Johan Ericsson
发明人： Joel P. Dunsmore , Sean Hubert , Loren C. Betts , Johan Ericsson
IPC分类号： G01R23/14 , G01R27/28
CPC分类号： G01R27/32 , G01R31/2824
摘要： A method is presented where the phase trace is offset for each sweep such that the first point is always at zero degrees. The resulting traces are then averaged. The average reduces the noise in the phase trace and results in a less noisy group delay trace.
摘要翻译：提出了一种方法，其中每个扫描的相位迹线偏移，使得第一点总是在零度。然后将所得到的痕迹平均。平均值降低了相位跟踪中的噪声，导致组噪声较小。

57. 发明申请

US20100315061A1 MEASUREMENT APPARATUS AND RECORDING MEDIUM 失效
标题翻译：测量装置和记录介质
公开(公告)号：US20100315061A1
公开(公告)日：2010-12-16
申请号：US12614728
申请日：2009-11-09
申请人： Masayuki TOMITA , Masahiko MUTO , Takeshi TAKAHASHI
发明人： Masayuki TOMITA , Masahiko MUTO , Takeshi TAKAHASHI
IPC分类号： G01R23/14
CPC分类号： H04L25/03159 , G01R23/16 , H04B17/318 , H04L1/206
摘要： Provided is a measurement apparatus that measures power of a modulated signal that is modulated with a carrier signal having a prescribed frequency, comprising an AD converting section that outputs a digital modulated signal obtained by AD converting the modulated signal; a frequency converting section that converts the digital modulated signal into a frequency component signal representing a plurality of signal components at respective frequencies; a correction coefficient output section that outputs, for each frequency, a correction coefficient corresponding to a frequency characteristic of a transmission path on which the modulated signal is transmitted; a correcting section that corrects the signal component of each frequency in the frequency component signal using the correction coefficient of the corresponding frequency; and a power calculating section that calculates the power of the modulated signal based on the signal component of each frequency in the corrected frequency component signal.
摘要翻译：提供一种测量装置，其测量利用具有规定频率的载波信号进行调制的调制信号的功率，包括：AD转换部，其输出通过AD转换所获得的调制信号而获得的数字调制信号; 频率转换部分，其将数字调制信号转换成表示各个频率的多个信号分量的频率分量信号; 校正系数输出部，对于每个频率，输出与发送所述调制信号的传输路径的频率特性相对应的校正系数; 校正部，其使用相应频率的校正系数校正频率分量信号中的每个频率的信号分量; 以及功率计算部，其基于所述校正后的频率分量信号中的各频率的信号分量来计算所述调制信号的功率。

58. 发明申请

US20100244811A1 High bandwidth oscilloscope for digitizing an analog signal having a bandwidth greater than the bandwidth of digitizing components of the oscilloscope 有权
标题翻译：用于数字化带宽大于示波器数字化部件带宽的模拟信号的高带宽示波器
公开(公告)号：US20100244811A1
公开(公告)日：2010-09-30
申请号：US12644234
申请日：2009-12-22
申请人： Peter J. Pupalaikis , David Graef
发明人： Peter J. Pupalaikis , David Graef
IPC分类号： G01R23/14 , G01R13/20
CPC分类号： H03M1/121 , G01R13/02 , G01R13/0272 , G01R19/25 , G06F17/40 , G06F19/00 , H03M1/60
摘要： A method for improving bandwidth of an oscilloscope involves, in preferred embodiments, the use of frequency up-conversion and down-conversion techniques. In an illustrative embodiment the technique involves separating an input signal into a high frequency content and a low frequency content, down-converting the high frequency content in the analog domain so that it may be processed by the oscilloscope's analog front end, digitizing the low frequency content and the down-converted high frequency content, and forming a digital representation of the received analog signal from the digitized low frequency content and high frequency content.
摘要翻译：在优选实施例中，用于提高示波器的带宽的方法涉及使用上变频和下变频技术。在说明性实施例中，该技术涉及将输入信号分离成高频内容和低频内容，对模拟域中的高频内容进行下变频，使得其可以由示波器的模拟前端处理，数字化低频内容和下变频高频内容，并且从数字化的低频内容和高频内容形成接收的模拟信号的数字表示。

59. 发明授权

US07659708B2 Broadcast receiver having integrated spectrum analysis 失效
标题翻译：具有综合频谱分析的广播接收机
公开(公告)号：US07659708B2
公开(公告)日：2010-02-09
申请号：US11508632
申请日：2006-08-23
申请人： John B. Payne, IV
发明人： John B. Payne, IV
IPC分类号： G01R23/14 , G01R23/00
CPC分类号： H04B1/28 , H04H20/04 , H04H40/27
摘要： A receiver for receiving a broadcast channel comprising a spectrum analyzer physically integrated into the receiver and operative to receive an intermediate frequency signal and process the spectral contents of the receive signal.
摘要翻译：一种用于接收广播频道的接收机，包括物理地集成到所述接收机中的频谱分析仪，并且可操作以接收中频信号并处理接收信号的频谱内容。

60. 发明授权

US07650248B1 Integrated circuit for in-system signal monitoring 有权
标题翻译：用于系统内信号监控的集成电路
公开(公告)号：US07650248B1
公开(公告)日：2010-01-19
申请号：US11351581
申请日：2006-02-10
申请人： Michael A. Baxter
发明人： Michael A. Baxter
IPC分类号： G01R23/00 , G01R23/14 , H03M1/60
CPC分类号： G01R31/3167 , G01R31/318519
摘要： In-system signal monitoring using an integrated circuit such as a programmable logic device is described. An analog-to-digital converter is disposed in the programmable logic device. A sampling bridge is coupled to provide an analog input to the analog-to-digital converter and to receive first signaling of a first frequency. A signal generator is configured to provide second signaling at a second frequency which is a fraction of the first frequency. Sample window circuitry is coupled to receive the second signaling and configured to provide third signaling to the sampling bridge at least partially responsive to the second signaling and at least partially responsive to an adjustable impedance setting of the sample window circuitry. The sample window circuitry is configured to provide an adjustable sample window within a pulse-width range.
摘要翻译：描述使用诸如可编程逻辑器件的集成电路的系统内信号监视。模数转换器设置在可编程逻辑器件中。耦合采样桥以向模数转换器提供模拟输入并且接收第一频率的第一信号。信号发生器被配置为以第二频率提供第二信号，其是第一频率的一部分。样本窗口电路被耦合以接收第二信号，并且被配置为至少部分地响应于第二信号提供对采样电桥的第三信令，并且至少部分地响应于采样窗口电路的可调阻抗设置。样本窗口电路被配置为在脉冲宽度范围内提供可调整的采样窗口。

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