公开(公告)号：US3728535A

公开(公告)日：1973-04-17

申请号：US3728535D

申请日：1971-08-19

Applicant: TEXTRON INC

Inventor： MATHEWSON G ,  DICKMAN A ,  ROESS T

IPC: G06G7/06 ,  G06G7/16 ,  G06J1/00

CPC classification number: G06G7/06 ,  G06G7/16

Abstract: A single analog multiplier is used to obtain the products of many pairs of analog signals. The many pairs of analog signals are connected to the multiplier on a time-sharing basis by cyclically sampling the analog signals and applying them in repetitive sequence to the analog multiplier. Conventional multiplexing techniques are used for this purpose. The successive output signals of the multiplier are then demultiplexed and the amplitudes of the product signals are separately stored to provide the system output. The accuracy of the multiplication is constrained to be very high by repetitively correcting the output of the multiplier according to the product obtained from one or more pairs of analog signals whose products should be fixed and are known references. By suitably operating upon the multiplier outputs, many additional functions such as scaling, filtering, square root extraction, division, etc. may be obtained.

Abstract translation: 使用单个模拟乘法器来获得许多模拟信号对的产物。 通过对模拟信号进行循环采样并将其以重复序列应用于模拟乘法器，多对模拟信号通过分时连接到乘法器。 传统的复用技术用于此目的。 然后将乘法器的连续输出信号解复用并分别存储产品信号的幅度以提供系统输出。 通过根据从产品应固定的一对或多对模拟信号获得的乘积重复地校正乘法器的输出并且是已知的参考，乘法精度被限制为非常高。 通过适当地对乘法器输出进行操作，可以获得诸如缩放，滤波，平方根提取，划分等许多附加功能。