公开(公告)号：US4134029A

公开(公告)日：1979-01-09

申请号：US792219

申请日：1977-04-29

申请人： James A. Bright ,  Gene H. Clark

发明人： James A. Bright ,  Gene H. Clark

IPC分类号： G11C27/04 ,  G11C27/02 ,  H03K5/13

CPC分类号： G11C27/04

摘要： An analog signal delay system is provided with a bucket-brigade charge transfer device controlled by a clock which supplies pulses at a predetermined frequency to sample an analog signal at its input and to effect a predetermined delay between the signal at the input and the corresponding signal at the output. Analog signals are impressed on the input of the system and are sampled at a pulse rate which may be one-half the frequency of the clock pulses. Periodic calibration or correction pulses are supplied to the brigade device during the intervals between the sampling pulses of the analog signal. One or more amplifiers are provided between the output of the brigade device and the output of the system. In order to correct for D.C. drift errors and gain variations which may result from temperature changes, the correction pulses are compared to a reference to generate error signals which are fed to control circuits to correct the D.C. level and gain. This effects the accurate reproduction of the delayed signals in the conformation of the corresponding input signals. The correction pulses are removed from the signal output of the system by gating techniques into an output capacitor.

摘要翻译： 一个模拟信号延迟系统设有一个由一个时钟提供的桶式旅行电荷转移装置，该时钟以预定的频率提供脉冲，以在其输入端采样一个模拟信号，并且在输入端的信号与相应的信号之间产生预定的延迟 在输出。 模拟信号施加在系统的输入端，并以可能是时钟脉冲频率的二分之一的脉冲速率进行采样。 在模拟信号的采样脉冲之间的间隔期间，向旅部装置提供定期校准或校正脉冲。 一个或多个放大器被提供在旅部装置的输出和系统的输出之间。 为了校正可能由温度变化引起的直流漂移误差和增益变化，将校正脉冲与参考值进行比较，以产生馈送到控制电路以校正直流电平和增益的误差信号。 这样可以在对应的输入信号的构象中实现延迟信号的精确再现。 通过选通技术将校正脉冲从系统的信号输出中移除到输出电容器中。