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Class Information
Number: 330/108
Name: Amplifiers > Signal feedback > Potentiometer common to signal and feedback path
Description: Subject matter wherein the signal transmission path and the "signal feedback circuit means" both include a potentiometer or a part thereof in common.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5705951 |
Method for correction of error signals in a signal amplification system and an apparatus used for that purpose |
Jan. 6, 1998 |
| 5371472 |
Charge amplifier for sensors outputting electrical charge |
Dec. 6, 1994 |
| 5081410 |
Band-gap reference |
Jan. 14, 1992 |
| 4791381 |
Integrated amplifier circuit |
Dec. 13, 1988 |
| 4716378 |
Amplifier circuit |
Dec. 29, 1987 |
| 4633189 |
NF tone control circuit |
Dec. 30, 1986 |
| 4543536 |
Charge amplifier with automatic zero |
Sep. 24, 1985 |
| 4502020 |
Settling time reduction in wide-band direct-coupled transistor amplifiers |
Feb. 26, 1985 |
| 4387345 |
Precision gain AC coupled operational amplifier |
Jun. 7, 1983 |
| 4354163 |
High voltage buffer amplifier |
Oct. 12, 1982 |
| 4340865 |
Electric amplifier circuits that respond to an input signal of either polarity to produce an output signal having a polarity corresponding to that of the input signal |
Jul. 20, 1982 |
| 4322681 |
Module for analyzing and linearizing of electrical signals from unknown systems and method for using it |
Mar. 30, 1982 |
| 4268760 |
Amplitude-limiter |
May. 19, 1981 |
| 4193040 |
High-voltage amplifier with low output impedance |
Mar. 11, 1980 |
| 4156853 |
Active filter for providing improved notch and band pass filters |
May. 29, 1979 |
| 4152659 |
Low noise differential amplifier |
May. 1, 1979 |
| 4151478 |
Nonlinearly variable gain apparatus |
Apr. 24, 1979 |
| 4107622 |
Tone controller |
Aug. 15, 1978 |
| 4107618 |
Amplifier system having signal gain independent of a reference voltage |
Aug. 15, 1978 |
| 4099134 |
Amplifier with controllable transmission factor and switchable control characteristic |
Jul. 4, 1978 |
| 4092494 |
Loud-speaker enclosure with electrical feed-back |
May. 30, 1978 |
| 4091333 |
Transconductance amplifier circuit |
May. 23, 1978 |
| 4087758 |
Reference voltage source circuit |
May. 2, 1978 |
| 4079331 |
Amplifier system with special feedback circuits |
Mar. 14, 1978 |
| 4078215 |
Electronic filter circuit |
Mar. 7, 1978 |
| 4055813 |
Single adjustment multiple function calibration circuit |
Oct. 25, 1977 |
| 4037170 |
Difference amplifier having extended common mode range |
Jul. 19, 1977 |
| 3983504 |
Active filter |
Sep. 28, 1976 |
| 3980942 |
Apparatus for the control of electrical heating of a semiconductor rod |
Sep. 14, 1976 |
| 3972006 |
Bandpass filter |
Jul. 27, 1976 |
| 3939433 |
Feedback circuit |
Feb. 17, 1976 |
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