公开(公告)号：US08369817B2

公开(公告)日：2013-02-05

申请号：US12690793

申请日：2010-01-20

申请人： Eoin Ohannaidh ,  Stéphane Le Tual ,  Loïc Joet

发明人： Eoin Ohannaidh ,  Stéphane Le Tual ,  Loïc Joet

IPC分类号： H04B1/10

CPC分类号： H03H15/02 ,  H03H11/1291

摘要： An analog finite impulse response (AFIR) filter including at least one variable transconductance block having an input for receiving an input voltage and being adapted to sequentially apply each of a plurality of transconductance levels to the input voltage during at least one of a plurality of successive time periods to generate an output current at an output of the variable transconductance block, the at least one variable transconductance block including a plurality of fixed transconductance blocks each receiving the input voltage and capable of being independently activated to supply the output current; and a capacitor coupled to the output of the variable transconductance block to receive the output current and provide an output voltage of the filter.

摘要翻译： 一种模拟有限脉冲响应（AFIR）滤波器，包括至少一个可变跨导块，其具有用于接收输入电压的输入，并且适于在多个连续的至少一个期间顺序地将多个跨导电平中的每一个施加到输入电压 在所述可变跨导块的输出处产生输出电流的所述时间周期，所述至少一个可变跨导块包括多个固定跨导块，每个固定跨导块接收所述输入电压并且能够被独立地激活以提供所述输出电流; 以及耦合到可变跨导块的输出的电容器，以接收输出电流并提供滤波器的输出电压。

公开(公告)号：US20100048145A1

公开(公告)日：2010-02-25

申请号：US12539896

申请日：2009-08-12

申请人： Eoin Ohannaidh ,  Stéphane Le Tual ,  Loïc Joet

发明人： Eoin Ohannaidh ,  Stéphane Le Tual ,  Loïc Joet

IPC分类号： H04B1/38 ,  H04B1/10 ,  H03M3/00

CPC分类号： H03H15/02 ,  H03H11/1291

摘要： An analog finite impulse response filter including at least one variable transconductance block having an input for receiving an input voltage and being adapted to sequentially apply each of a plurality of transconductance levels to the input voltage during at least one of a plurality of successive time periods to generate an output current at an output of the variable transconductance block, the at least one variable transconductance block including a plurality of fixed transconductance blocks each receiving the input voltage and capable of being independently activated to supply the output current; and a capacitor coupled to the output of the variable transconductance block to receive the output current and provide an output voltage of the filter.

摘要翻译： 一种模拟有限脉冲响应滤波器，包括至少一个可变跨导块，其具有用于接收输入电压的输入，并且适于在多个连续时间段中的至少一个期间顺序地将多个跨导电平中的每一个施加到输入电压， 在所述可变跨导块的输出处产生输出电流，所述至少一个可变跨导块包括多个固定跨导块，每个所述多个固定跨导块接收所述输入电压并能够被独立地激活以提供所述输出电流; 以及耦合到可变跨导块的输出的电容器，以接收输出电流并提供滤波器的输出电压。

公开(公告)号：US07634247B2

公开(公告)日：2009-12-15

申请号：US11664149

申请日：2005-03-15

申请人： Loïc Joet ,  Daniel Saias ,  Eric Andre

发明人： Loïc Joet ,  Daniel Saias ,  Eric Andre

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。

公开(公告)号：US06914458B2

公开(公告)日：2005-07-05

申请号：US10688208

申请日：2003-10-17

申请人： Loïc Joet ,  Sébastien Dedieu ,  Eric Andre ,  Daniel Saias

发明人： Loïc Joet ,  Sébastien Dedieu ,  Eric Andre ,  Daniel Saias

IPC分类号： H03L7/087 ,  H03L7/089 ,  H03L7/183 ,  H03L7/199 ,  H03B19/00

CPC分类号： H03L7/087 ,  H03L7/0891 ,  H03L7/183 ,  H03L7/199 ,  H03L2207/18

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。

公开(公告)号：US20100171548A1

公开(公告)日：2010-07-08

申请号：US12690793

申请日：2010-01-20

申请人： Eoin Ohannaidh ,  Stéphane Le Tual ,  Loïc Joet

发明人： Eoin Ohannaidh ,  Stéphane Le Tual ,  Loïc Joet

IPC分类号： H03K5/00

CPC分类号： H03H15/02 ,  H03H11/1291

摘要： An analog finite impulse response (AFIR) filter including at least one variable transconductance block having an input for receiving an input voltage and being adapted to sequentially apply each of a plurality of transconductance levels to the input voltage during at least one of a plurality of successive time periods to generate an output current at an output of the variable transconductance block, the at least one variable transconductance block including a plurality of fixed transconductance blocks each receiving the input voltage and capable of being independently activated to supply the output current; and a capacitor coupled to the output of the variable transconductance block to receive the output current and provide an output voltage of the filter.

摘要翻译： 一种模拟有限脉冲响应（AFIR）滤波器，包括至少一个可变跨导块，其具有用于接收输入电压的输入，并且适于在多个连续的至少一个期间顺序地将多个跨导电平中的每一个施加到输入电压 在所述可变跨导块的输出处产生输出电流的所述时间周期，所述至少一个可变跨导块包括多个固定跨导块，每个固定跨导块接收所述输入电压并且能够被独立地激活以提供所述输出电流; 以及耦合到可变跨导块的输出的电容器，以接收输出电流并提供滤波器的输出电压。

公开(公告)号：US07705760B2

公开(公告)日：2010-04-27

申请号：US12015093

申请日：2008-01-16

申请人： Loïc Joet

发明人： Loïc Joet

IPC分类号： H03M1/12

CPC分类号： H04B1/16

摘要： The invention relates to a method for the filtering and analog/digital conversion of an incoming analog signal including an analog filtering of the incoming analog signal so as to filter the frequency components located outside a desired frequency band, and a conversion of the filtered analog signal to a digital signal. The digital signal is reformatted in a form that is substantially similar, at least in the desired frequency band, to the form of the incoming analog signal. A final digital filtering of the reformatted digital signal is performed so as to filter the frequency components located outside the desired frequency band.

摘要翻译： 本发明涉及一种用于滤波和模拟/数字转换输入模拟信号的方法，包括输入模拟信号的模拟滤波，以便对位于期望频带之外的频率分量进行滤波，以及滤波模拟信号的转换 到数字信号。 数字信号以至少在所需频带中基本相似的形式重新格式化为输入模拟信号的形式。 执行重新格式化的数字信号的最终数字滤波，以便对位于期望频带之外的频率分量进行滤波。

公开(公告)号：US07671780B2

公开(公告)日：2010-03-02

申请号：US12015070

申请日：2008-01-16

申请人： Loïc Joet

发明人： Loïc Joet

IPC分类号： H03M1/12

CPC分类号： H03D3/006

摘要： A method is for processing an incident signal, in which the incident signal is delivered to a transconductor stage, and a current output of the transconductor stage is coupled to an output capacitor so as to deliver to the output capacitor a current signal lasting for at least part of the first half-period of each period of a periodic signal and to thus obtain a frequency-transposed signal at the output capacitor. Upon the occurrence of each part of the first half-period, the voltage of the current output, seen from the output capacitor, is reset to a value equal to that of the voltage of the output capacitor.

摘要翻译： 一种用于处理入射信号的方法，其中入射信号被传送到跨导级，并且跨导级的电流输出耦合到输出电容器，以便向输出电容器传送持续至少的电流信号 周期信号的每个周期的前半段的一部分，从而在输出电容器处获得频移信号。 在第一半周期的每个部分出现时，从输出电容器看到的电流输出的电压被复位到与输出电容器的电压相等的值。

公开(公告)号：US07652613B2

公开(公告)日：2010-01-26

申请号：US12015039

申请日：2008-01-16

申请人： Loïc Joet ,  Stéphane Le Tual

发明人： Loïc Joet ,  Stéphane Le Tual

IPC分类号： H03M1/12

CPC分类号： H03M1/0629 ,  H03M1/0682 ,  H03M1/1023 ,  H03M1/1215 ,  H03M1/46

摘要： The method and device include the filtering and the analog/digital conversion of an intermediate signal. The intermediate signal is processed by a filtering and analog/digital conversion circuit that is configurable using switched passive capacitor technology. The various configurations successively adopted by the circuit provide filtering and analog/digital conversion to be successively carried out.

摘要翻译： 该方法和装置包括中间信号的滤波和模拟/数字转换。 中间信号由可使用切换无源电容技术配置的滤波和模拟/数字转换电路进行处理。 电路连续采用的各种配置提供了连续进行的滤波和模/数转换。