Method of sampling an analogue radiofrequency signal
    1.
    发明授权
    Method of sampling an analogue radiofrequency signal 有权
    模拟射频信号采样方法

    公开(公告)号:US07634247B2

    公开(公告)日:2009-12-15

    申请号:US11664149

    申请日:2005-03-15

    IPC分类号: H04B1/30

    CPC分类号: H04B1/28 H04B1/0025

    摘要: A method for sampling an analogue radiofrequency signal comprising reception of the analogue radiofrequency signal, sending of the received signal on two analogue channels, each channel performing a first signal sampling operation, including a filtering step eliminating signal frequencies that could fold on the useful signal during sampling such that the sampled signal represents a filtered version of the received signal, wherein the sampling frequency is taken to be equal to the frequency of the signal carrier divided by a factor Ndiv1+½, Ndiv1 being an integer number, to bring the useful signal to half of the sampling frequency after sampling.

    摘要翻译: 一种对模拟射频信号进行采样的方法,包括接收模拟射频信号,在两个模拟信道上发送接收信号,每个信道执行第一信号采样操作,包括滤波步骤,消除可能在有用的信号上折叠的信号频率 信号,使得采样信号表示接收信号的滤波版本,其中采样频率取等于信号载波的频率除以因子Ndiv1 +½,Ndiv1为整数,以使得 有用的信号采样后采样频率的一半。

    Method and device for generating a signal with a frequency equal to the product of a reference frequency and a real number
    2.
    发明授权
    Method and device for generating a signal with a frequency equal to the product of a reference frequency and a real number 有权
    用于产生频率等于参考频率和实数乘积的信号的方法和装置

    公开(公告)号:US06914458B2

    公开(公告)日:2005-07-05

    申请号:US10688208

    申请日:2003-10-17

    摘要: A method for generating a signal with a frequency equal to a product of a reference frequency and a real number includes providing an output signal from an oscillator, and performing a first integer division of a frequency of the output signal by a first integer divider to obtain a first intermediate signal. A first measurement signal representative of a time difference between the first intermediate signal and a reference signal having the reference frequency is determined. The method further includes generating a first comparison signal derived from the first measurement signal, and generating a second comparison signal dependent on a period of the reference signal, on integer and decimal parts of the real number and on the first integer divider. The first and second comparison signals are compared to obtain an error signal representative of a time difference between a period of a current output signal and the period of the reference signal. The first integer division is deactivated to deliver an error signal to the input of the oscillator, with the output signal from the oscillator forming the desired signal with a frequency equal to the product of the reference frequency and the real number.

    摘要翻译: 用于产生频率等于参考频率和实数的乘积的信号的方法包括提供来自振荡器的输出信号,以及通过第一整数分频器对输出信号的频率进行第一整数除法以获得 第一中间信号。 确定代表第一中间信号和具有参考频率的参考信号之间的时间差的第一测量信号。 该方法还包括生成从第一测量信号导出的第一比较信号,以及根据参考信号的周期,在实数的整数和小数部分以及第一整数分频器上产生第二比较信号。 比较第一和第二比较信号以获得表示当前输出信号的周期与参考信号周期之间的时间差的误差信号。 第一个整数除法被去激活以向振荡器的输入端发送一个误差信号,来自振荡器的输出信号形成期望的信号,其频率等于参考频率和实数的乘积。

    Intermediate-frequency type radio signal receiver
    3.
    发明授权
    Intermediate-frequency type radio signal receiver 有权
    中频无线电信号接收机

    公开(公告)号:US07796964B2

    公开(公告)日:2010-09-14

    申请号:US11734907

    申请日:2007-04-13

    IPC分类号: H04B1/26

    CPC分类号: H04B1/1027 H04B1/30

    摘要: A radio signal receiver includes an input for receiving an input signal having an input carrier frequency modulated by a payload signal to be detected. A frequency converter changes the carrier frequency of the input signal and produces an intermediate signal that is an image of the input signal, and has a carrier frequency equal to an intermediate frequency. A filter circuit filters the intermediate signal. A demodulator eliminates a component, with a frequency equal to the intermediate frequency, from the filtered intermediate frequency, and produces the payload signal. The receiver also includes a detection circuit to produce a level signal representative of a level of the payload signal. A control circuit applies a control signal representative of the level signal to a control input of the frequency converter, the filter circuit and the demodulator.

    摘要翻译: 无线电信号接收机包括用于接收具有由待检测的有效载荷信号调制的输入载波频率的输入信号的输入端。 变频器改变输入信号的载波频率,并产生作为输入信号的图像的中间信号,并具有等于中频的载波频率。 滤波电路对中间信号进行滤波。 解调器从滤波后的中频消除了频率等于中频的分量,并产生有效载荷信号。 接收机还包括检测电路,以产生表示有效载荷信号电平的电平信号。 控制电路将表示电平信号的控制信号施加到变频器,滤波电路和解调器的控制输入。

    INTERMEDIATE-FREQUENCY TYPE RADIO SIGNAL RECEIVER
    4.
    发明申请
    INTERMEDIATE-FREQUENCY TYPE RADIO SIGNAL RECEIVER 有权
    中频无线电信号接收器

    公开(公告)号:US20070249306A1

    公开(公告)日:2007-10-25

    申请号:US11734907

    申请日:2007-04-13

    IPC分类号: G06F3/033

    CPC分类号: H04B1/1027 H04B1/30

    摘要: A radio signal receiver includes an input for receiving an input signal having an input carrier frequency modulated by a payload signal to be detected. A frequency converter changes the carrier frequency of the input signal and produce an intermediate signal that is an image of the input signal, and has a carrier frequency equal to an intermediate frequency. A filter circuit filters the intermediate signal. A demodulator eliminates a component, with a frequency equal to the intermediate frequency, from the filtered intermediate frequency, and produces the payload signal. The receiver also includes a detection circuit to produce a level signal representative of a level of the payload signal. a control circuit to apply a control signal representative of the level signal to a control input of the frequency converter, the filter circuit and the demodulator.

    摘要翻译: 无线电信号接收机包括用于接收具有由待检测的有效载荷信号调制的输入载波频率的输入信号的输入端。 频率转换器改变输入信号的载波频率并产生作为输入信号的图像的中间信号,并具有等于中频的载波频率。 滤波电路对中间信号进行滤波。 解调器从滤波后的中频消除了频率等于中频的分量,并产生有效载荷信号。 接收机还包括检测电路,以产生表示有效载荷信号电平的电平信号。 控制电路,用于将代表电平信号的控制信号施加到变频器,滤波电路和解调器的控制输入端。

    Method of Sampling an Analogue Radiofrequency Signal
    5.
    发明申请
    Method of Sampling an Analogue Radiofrequency Signal 有权
    模拟射频信号采样方法

    公开(公告)号:US20070259620A1

    公开(公告)日:2007-11-08

    申请号:US11664149

    申请日:2005-03-15

    IPC分类号: H04B7/14

    CPC分类号: H04B1/28 H04B1/0025

    摘要: A method for sampling an analogue radiofrequency signal comprising reception of the analogue radiofrequency signal, sending of the received signal on two analogue channels, each channel performing a first signal sampling operation, including a filtering step eliminating signal frequencies that could fold on the useful signal during sampling such that the sampled signal represents a filtered version of the received signal, wherein the sampling frequency is taken to be equal to the frequency of the signal carrier divided by a factor Ndiv1+½, Ndiv1 being an integer number, to bring the useful signal to half of the sampling frequency after sampling.

    摘要翻译: 一种对模拟射频信号进行采样的方法,包括接收模拟射频信号,在两个模拟信道上发送接收信号,每个信道执行第一信号采样操作,包括滤波步骤,消除可能在有用的信号上折叠的信号频率 信号,使得采样信号表示接收信号的滤波版本,其中采样频率取等于信号载波的频率除以因子Ndiv1 +½,Ndiv1为整数,以使得 有用的信号采样后采样频率的一半。

    Switchable inductance
    6.
    发明授权
    Switchable inductance 有权
    可切换电感

    公开(公告)号:US07259649B2

    公开(公告)日:2007-08-21

    申请号:US10903896

    申请日:2004-07-30

    IPC分类号: H01F5/00

    摘要: A switchable inductance that can be formed in an integrated circuit, including a spiral interrupted between two first points connected to two terminals via two metallizations running one above the other, one of the two metallizations being deformable; a hollowing between the two metallizations; and a switching device capable of deforming the deformable metallization to separate or to put in contact said two metallizations.

    摘要翻译: 可以形成在集成电路中的可切换电感,包括通过两个金属化连接到两个端子的两个第一点之间中断的螺旋,一个在另一个之上运行,两个金属化之一可变形; 两个金属化之间的空心; 以及能够使可变形金属化变形以分离或接触所述两个金属化的开关装置。

    Low-power accelerometer
    9.
    发明授权

    公开(公告)号:US10725067B2

    公开(公告)日:2020-07-28

    申请号:US16092728

    申请日:2017-04-05

    摘要: The invention relates to an accelerometer comprising a plurality of proof-masses (M1-M4) moveable along a measurement axis (AB); a respective spring (K1-K4) rigidly attached to each proof-mass, configured to exert an elastic recall on the proof-mass in the measurement axis; a fixed stop (S1-S4) associated with each proof-mass, arranged to intercept the proof-mass when the acceleration in the measurement axis increases by a step; and an electrical contact associated with each stop, configured to be closed when the associated proof-mass reaches the stop. The proof-masses are suspended in series with respect to one another by springs in the measurement axis, the stops being arranged to successively intercept the respective proof-masses for increasing thresholds of acceleration.

    METHOD OF SIMULATING AN ELECTRONIC CIRCUIT COMPRISING AT LEAST ONE ANALOGUE PART WITH A POWER SPECTRAL DENSITY
    10.
    发明申请
    METHOD OF SIMULATING AN ELECTRONIC CIRCUIT COMPRISING AT LEAST ONE ANALOGUE PART WITH A POWER SPECTRAL DENSITY 审中-公开
    模拟包含功率谱密度的最小一个模拟部分的电子电路的方法

    公开(公告)号:US20110106517A1

    公开(公告)日:2011-05-05

    申请号:US12995589

    申请日:2009-06-08

    申请人: Daniel Saias

    发明人: Daniel Saias

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5036

    摘要: An electronic circuit, comprising at least an analog part, subjected to predefined input signals in the time domain, is broken down into at least one modeled elementary block. The input signal is transformed into a simulation signal which comprises at least one useful signal component representative of the spectral power density of the input signal. Application to an input of the simulation signal circuit is simulated. The useful component of the simulated signal is computed on output of each successive block. The useful component of the simulated signal output from the circuit is compared with at least one predefined signal to test at least one characteristic of the circuit. A noise component can be introduced in a simulation signal or in the output signal of a block passed through.

    摘要翻译: 包括在时域中受到预定义的输入信号的至少一个模拟部分的电子电路被分解为至少一个建模的基本块。 输入信号被转换成包括代表输入信号的频谱功率密度的至少一个有用信号分量的模拟信号。 模拟信号电路的输入应用。 在每个连续块的输出上计算模拟信号的有用分量。 将来自电路的模拟信号输出的有用组件与至少一个预定信号进行比较,以测试电路的至少一个特性。 可以在模拟信号中或通过的块的输出信号中引入噪声分量。