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公开(公告)号：US3654563A
公开(公告)日：1972-04-04
申请号：US3654563D
申请日：1965-10-15
Applicant: GEN ELECTRIC
Inventor： HESLER JOSEPH P , MCFADYEN ROBERT J , SCHLERETH FRITZ H
CPC classification number: H03H11/0405 , H03G9/025
Abstract: An active filter for improving both frequency and noise characteristics of an incoming signal. The filter is a closed loop circuit having a nonlinear network and an integrating network in the feedthrough path and a filter network in the feedback path. In the presence of a rapidly changing input signal the circuit closed loop response peaks over a relatively wide band of higher frequencies for accepting high frequency components of the input signal, while in the presence of noise the closed loop response exhibits a restricted bandwidth.
Abstract translation: 一个有源滤波器，用于提高输入信号的频率和噪声特性。 滤波器是具有非线性网络和馈通路径中的集成网络以及反馈路径中的滤波器网络的闭环电路。 在存在快速变化的输入信号的情况下，电路闭环响应在较高频率的相对宽的频带上峰值，用于接收输入信号的高频分量，而在存在噪声的情况下，闭环响应呈现受限带宽。
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公开(公告)号：US3621354A
公开(公告)日：1971-11-16
申请号：US3621354D
申请日：1970-01-07
Applicant: GEN ELECTRIC
Inventor： FAWCETT JAMES W , IRWIN JOHN M , MCFADYEN ROBERT J
CPC classification number: H02P7/2913 , G05D3/20 , Y10S388/912 , Y10S388/921
Abstract: Wideband digital servosystem for accurately controlling the velocity and/or position of a DC motor. A plurality of constant current sources connected in the armature circuit are actuated in response to a sensed digital error, determined by subtracting from a digital input a number of pulses proportional to the motor rotation.
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公开(公告)号：US3392287A
公开(公告)日：1968-07-09
申请号：US42367965
申请日：1965-01-06
Applicant: GEN ELECTRIC
Inventor： MCFADYEN ROBERT J , SCHLERETH FRITZ H
IPC: H03G11/02
CPC classification number: H03G11/02
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