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Class Information
Number: 330/76
Name: Amplifiers > Signal feedback > Compensating for inter-electrode impedance (e.g., neutralization)
Description: Subject matter wherein the "signal feedback circuit means" are provided from compensating for or nullifying the undesirable feedback caused by any inter-electrode impedances of a vacuum tube amplifying device.










Sub-classes under this class:

Class Number Class Name Patents
330/77 At least one push-pull stage 5
330/80 By coil in parallel to and resonating with inter-electrode capacity 2
330/79 By transformer feedback 15
330/78 To or from electrode common to input and output 3


Patents under this class:

Patent Number Title Of Patent Date Issued
8374279 Modulation device for a transmission path, method for signal processing in a transmission path, and transmission path having the modulation device Feb. 12, 2013
7646247 Ahuja compensation circuit for operational amplifier Jan. 12, 2010
7142059 Amplifier arrangement Nov. 28, 2006
6879215 Synthetic circuit component and amplifier applications Apr. 12, 2005
5877654 Class a amplifier with a digitally programmable miller compensation network Mar. 2, 1999
5729176 Linear differential gain stage Mar. 17, 1998
5392001 Capacitively-coupled amplifier with improved low frequency response Feb. 21, 1995
4910476 High-frequency amplifier with automatic neutrodyning circuit Mar. 20, 1990
4904951 Method and circuit for reducing effects of distributed capacitance associated with large thin film resistors Feb. 27, 1990
4751471 Amplifying circuit particularly adapted for amplifying a biopotential input signal Jun. 14, 1988
4588959 Hum neutralization circuit May. 13, 1986
4246542 Filter using a state-variable biquadratic transfer function circuit Jan. 20, 1981











 
 
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