公开(公告)号：US5017924A

公开(公告)日：1991-05-21

申请号：US514888

申请日：1990-04-26

申请人： Christian Guiberteau ,  Michele Le Paih ,  Stephane Ruggeri

发明人： Christian Guiberteau ,  Michele Le Paih ,  Stephane Ruggeri

IPC分类号： G11C27/02

CPC分类号： G11C27/026

摘要： Disclosed is a sample-and-hold unit more especially designed to work at microwave frequencies (>1 GHz). In order to increase the sampling frequency, the disclosed circuit has at least two identical parallel channels. Each channel has a first follower switch (9) a capacitor (11) and a second holding switch (15). The channels are controlled by a single clock, the complementary or phase-shifted signals (H, H) of which address the samples sequentially towards the output (8). The disclosed device can be applied to the processing of analog signals.

摘要翻译： 公开了一种采样保持单元，更专门设计用于在微波频率（> 1GHz）下工作。 为了增加采样频率，所公开的电路具有至少两个相同的并行通道。 每个通道具有第一跟随开关（9）电容器（11）和第二保持开关（15）。 通道由单个时钟控制，互补或相移信号（H，＆amp; upbar＆amp; H）依次向输出端（8）寻址采样。 所公开的设备可以应用于模拟信号的处理。

公开(公告)号：US5012084A

公开(公告)日：1991-04-30

申请号：US470141

申请日：1990-01-25

申请人： Christian Guiberteau ,  Stephane Ruggeri ,  Michele Le Paih

发明人： Christian Guiberteau ,  Stephane Ruggeri ,  Michele Le Paih

IPC分类号： G11C27/02

CPC分类号： G11C27/024

摘要： Disclosed is a microwave (1 GHZ) sample-and-hold unit having a field-effect transistor, to which an input signal is applied, and a storage capacitor. The transistor is made of materials of the III-V group, such as GaAs or InP, and Its channel region is controlled by an optical control device formed by an optic fiber and a pulsed laser semiconductor. In order to reduce the switching time of the transistor, this transistor and the laser are both biased at points close to their thresholds. The disclosed device can be applied in signal processing, at frequencies of the order of 1 GHz.

摘要翻译： 公开了具有施加输入信号的场效应晶体管和存储电容器的微波（1GGZ）采样保持单元。 该晶体管由诸如GaAs或InP的III-V族材料制成，其沟道区由光纤和脉冲激光半导体形成的光控制器控制。 为了减小晶体管的开关时间，该晶体管和激光器都偏向接近其阈值的点。 所公开的设备可以在1GHz频率的信号处理中应用。

公开(公告)号：US06498665B1

公开(公告)日：2002-12-24

申请号：US09377747

申请日：1999-08-20

申请人： Corinne Chauzat ,  Paolo Ottolenghi ,  Stephane Ruggeri ,  Michel Sotom

发明人： Corinne Chauzat ,  Paolo Ottolenghi ,  Stephane Ruggeri ,  Michel Sotom

IPC分类号： H04J1402

CPC分类号： H04Q11/0005 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0219 ,  H04J14/0221 ,  H04Q2011/0009 ,  H04Q2011/0016 ,  H04Q2011/0022 ,  H04Q2011/0024 ,  H04Q2011/0049

摘要： The system includes processors each of which can drop an optical signal contained in one channel of an incoming optical multiplex signal and add an optical signal to the multiplex signal channel thereby made available. Each processor includes an optical signal drop filter and an optical signal add filter for an individual channel of particular wavelength, and these filters are connected by an optical switch. The drop filters and the add filters of the circuits of the system are connected in series, some in a drop subsystem and the others in an add subsystem, to transmit the multiplex signal from one filter to the other and from the drop subsystem to the add subsystem. They are distributed in order of decreasing drop or add wavelength from the input of the system at which the incoming multiplex signal is received.

摘要翻译： 该系统包括处理器，每个处理器可以丢弃包含在输入光复用信号的一个通道中的光信号，并将光信号添加到多路复用信号通道，从而使其可用。 每个处理器包括用于特定波长的单独信道的光信号丢弃滤波器和光信号添加滤波器，并且这些滤波器由光开关连接。 系统的电路的放大滤波器和加法滤波器串联连接，一些在一个子系统中，另一个在一个加法子系统中，以将多路复用信号从一个滤波器传输到另一个滤波器，并从该子系统发送到加法器 子系统。 它们按照从接收输入复用信号的系统的输入减小或添加波长的顺序分布。

公开(公告)号：US5194822A

公开(公告)日：1993-03-16

申请号：US744721

申请日：1991-08-14

申请人： Christophe Bureau ,  Stephane Ruggeri

发明人： Christophe Bureau ,  Stephane Ruggeri

IPC分类号： H03G3/00 ,  H03G3/20 ,  H03G3/30 ,  H04N7/10

CPC分类号： H03G3/3052 ,  H03G3/001

摘要： The automatic gain control method adapted to maintain the output level equal of the variable gain amplifier to a required value, includes a preliminary calibration phase for establishing a relationship representing the variations in the amplifier gain control signal as a function of variations in the input signal level with a constant output level equal to the required value or as a function of variations in the output signal level for a constant input signal level. The method further includes an operative phase for applying to the amplifier of a particular value of the gain control signal, measuring the corresponding output level, detecting any offset between the result of the measurement and the required value, and if such an offset is detected, determining a corresponding control signal value conditioned by the relationship previously established, and depending on the mode utilized to establish the relationship, either an input level whose offset relative to the corresponding input level given by the relationship at the particular value of the control signal is opposite to said detected offset, or an output level whose offset relative to the required value is opposite to the detected value, and finally, selectively updating the particular value when an offset is detected to so that the particular value becomes equal to the value obtained by the determination.

摘要翻译： 适于将可变增益放大器的输出电平维持在所需值的自动增益控制方法包括用于建立表示放大器增益控制信号中的变化的关系的初步校准阶段，作为输入信号电平的变化的函数 具有等于​​所需值的恒定输出电平或作为恒定输入信号电平的输出信号电平变化的函数。 该方法还包括用于向放大器施加增益控制信号的特定值的操作阶段，测量对应的输出电平，检测测量结果与所需值之间的任何偏差，并且如果检测到这样的偏移， 确定由先前建立的关系调节的对应的控制信号值，并且根据用于建立该关系的模式，输入电平的相对于由控制信号的特定值处的关系给出的相应输入电平的偏移量相反 或者相对于所需值的偏移与检测值相反的输出电平，最后，当检测到偏移量时，选择性地更新特定值，使得特定值变得等于由 决心。