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Class Information
Number: 330/254
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including differential amplifier > Having gain control means
Description: Subject matter including circuitry which controls the amplification of the applied signal.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7456692 |
Gain variable amplifier |
Nov. 25, 2008 |
| 7446608 |
Variable gain amplifier with constant input referred third order intercept |
Nov. 4, 2008 |
| 7446609 |
Variable gain amplifier with gain adjusting circuit |
Nov. 4, 2008 |
| 7443241 |
RF variable gain amplifier |
Oct. 28, 2008 |
| 7443240 |
AM intermediate frequency variable gain amplifier circuit, variable gain amplifier circuit and its semiconductor integrated circuit |
Oct. 28, 2008 |
| 7439811 |
Broadband low noise amplifier and RF signal amplification method of the same |
Oct. 21, 2008 |
| 7436967 |
Apparatus and method of limiting power applied to a loudspeaker |
Oct. 14, 2008 |
| 7436260 |
Controlling the ratio of amplification factors between linear amplifiers |
Oct. 14, 2008 |
| 7436262 |
Highly linear variable gain amplifier |
Oct. 14, 2008 |
| 7432763 |
Gain boosting for tuned differential LC circuits |
Oct. 7, 2008 |
| 7429893 |
Variable-gain amplifier and related method |
Sep. 30, 2008 |
| 7425866 |
Digitally adjusted variable gain amplifier (VGA) using switchable differential pairs |
Sep. 16, 2008 |
| 7423481 |
Amplifier arrangement and amplifying method |
Sep. 9, 2008 |
| 7420423 |
Active balun device |
Sep. 2, 2008 |
| 7420410 |
Variable gain amplifier circuit, method of correcting DC offset of the variable gain amplifying circuit, and radio receiving apparatus |
Sep. 2, 2008 |
| 7417506 |
Amplifier having switchable negative feedback |
Aug. 26, 2008 |
| 7417492 |
Regulator |
Aug. 26, 2008 |
| 7405625 |
Common-mode control structures and signal converter systems for use therewith |
Jul. 29, 2008 |
| 7405621 |
Apparatus for amplifying differential signal |
Jul. 29, 2008 |
| 7403063 |
Apparatus and method for tuning center frequency of a filter |
Jul. 22, 2008 |
| 7403071 |
High linearity and low noise amplifier with continuously variable gain control |
Jul. 22, 2008 |
| 7400195 |
Variable-gain differential amplifier |
Jul. 15, 2008 |
| 7400192 |
Low noise amplifier and differential amplifier with variable gain mode |
Jul. 15, 2008 |
| 7397307 |
Amplifier arrangement having an adjustable gain, and use thereof |
Jul. 8, 2008 |
| 7394994 |
Optical receiver circuit |
Jul. 1, 2008 |
| 7392033 |
Reducing active mixer flicker noise |
Jun. 24, 2008 |
| 7392028 |
Radio receiver/transceiver including an interface circuit selectively operable in a current mode or a voltage mode |
Jun. 24, 2008 |
| 7391829 |
Apparatus, system and method for receiver equalization |
Jun. 24, 2008 |
| 7386075 |
Apparatus for and method of optimizing the performance of a radio frequency receiver in the presence of interference |
Jun. 10, 2008 |
| 7382191 |
Multiplier-transimpedance amplifier combination with input common mode feedback |
Jun. 3, 2008 |
| 7382190 |
Variable attenuation system having continuous input steering |
Jun. 3, 2008 |
| 7382189 |
Multi-gain amplifier with input impedance control |
Jun. 3, 2008 |
| 7382166 |
Signal amplification device |
Jun. 3, 2008 |
| 7378881 |
Variable gain amplifier circuit |
May. 27, 2008 |
| 7378908 |
Variable gain differential amplifier, and variable degeneration impedance control device and method for use in the same |
May. 27, 2008 |
| 7372330 |
Variable gain amplifier |
May. 13, 2008 |
| 7369781 |
Burst mode optical receiver considering characteristic of extinction ratio of received optical signal |
May. 6, 2008 |
| 7358811 |
CMOS variable gain amplifier for controlling dB linear gain |
Apr. 15, 2008 |
| 7352242 |
Programmable gain trim circuit |
Apr. 1, 2008 |
| 7352241 |
Variable gain amplifier |
Apr. 1, 2008 |
| 7353010 |
Techniques for fast automatic gain control |
Apr. 1, 2008 |
| 7345541 |
Apparatus for variable gain amplifiers and mixers |
Mar. 18, 2008 |
| 7342432 |
Mixer circuit having improved linearity and noise figure |
Mar. 11, 2008 |
| 7342451 |
System for logarithmically controlling multiple variable gain amplifiers |
Mar. 11, 2008 |
| 7339432 |
Variable gain amplifier and differential amplifier |
Mar. 4, 2008 |
| 7340069 |
System and method for split automatic gain control |
Mar. 4, 2008 |
| 7340235 |
System for limiting current in an output stage of a power amplifier |
Mar. 4, 2008 |
| 7333557 |
Adaptive controller for linearization of transmitter with impairments |
Feb. 19, 2008 |
| 7332963 |
Low noise amplifier |
Feb. 19, 2008 |
| 7332967 |
Variable gain amplifier with low phase variation |
Feb. 19, 2008 |
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