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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 |
| 6304142 |
Variable transconductance amplifier |
Oct. 16, 2001 |
| 6300832 |
Gain variable amplifier apparatus having improved gain control linearity characteristics |
Oct. 9, 2001 |
| 6298466 |
Method and system for synthesizing operational amplifiers for amplifying systems with minimal total harmonic distortion |
Oct. 2, 2001 |
| 6297698 |
Circuit for automatic regulation of a differential amplifier's gain |
Oct. 2, 2001 |
| 6278325 |
Programmable gain amplifier with a large extent for the variation of gains |
Aug. 21, 2001 |
| 6278321 |
Method and apparatus for an improved variable gain amplifier |
Aug. 21, 2001 |
| 6271726 |
Wideband, variable gain amplifier |
Aug. 7, 2001 |
| 6265936 |
Integrated amplifier arrangement |
Jul. 24, 2001 |
| 6259901 |
Radio-frequency power amplifier of mobile communication equipment |
Jul. 10, 2001 |
| 6259321 |
CMOS variable gain amplifier and control method therefor |
Jul. 10, 2001 |
| 6246289 |
Variable-gain multistage amplifier with broad bandwidth and reduced phase variations |
Jun. 12, 2001 |
| 6242981 |
AGC circuit |
Jun. 5, 2001 |
| 6236268 |
High-gain amplifier having a limited output dynamic range |
May. 22, 2001 |
| 6232839 |
Voltage-controlled amplifier having compensation for gain control imbalance |
May. 15, 2001 |
| 6229395 |
Differential transconductance amplifier |
May. 8, 2001 |
| 6218899 |
Method for a highly linear variable-gain low noise amplifier |
Apr. 17, 2001 |
| 6215989 |
Variable gain circuit |
Apr. 10, 2001 |
| 6201443 |
Radio frequency variable gain amplifier fabricated in complementary metal oxide semiconductor technology |
Mar. 13, 2001 |
| 6194972 |
Gyrator with loop amplifiers connected to inductive elements |
Feb. 27, 2001 |
| 6177839 |
Variable gain amplifier circuit |
Jan. 23, 2001 |
| 6172566 |
Low noise amplifier |
Jan. 9, 2001 |
| 6169452 |
Gain control, variable gain and automatic gain control amplifiers including differential circuit transistors and current splitter |
Jan. 2, 2001 |
| 6169638 |
Automatic gain control circuit and method |
Jan. 2, 2001 |
| 6163215 |
Variable gain amplifier |
Dec. 19, 2000 |
| 6137362 |
Low noise and high input dynamic range differential amplifier stage |
Oct. 24, 2000 |
| 6127893 |
Method and apparatus for controlling an audio signal level |
Oct. 3, 2000 |
| 6127890 |
Variable gain circuit with improved gain response |
Oct. 3, 2000 |
| 6124761 |
Variable gain amplifier with gain linear with control voltage |
Sep. 26, 2000 |
| 6121831 |
Apparatus and method for removing offset in a gain circuit |
Sep. 19, 2000 |
| 6111463 |
Operational transconductance amplifier and multiplier |
Aug. 29, 2000 |
| 6100761 |
Highly linear variable-gain low noise amplifier |
Aug. 8, 2000 |
| 6100760 |
Variable gain amplifier |
Aug. 8, 2000 |
| 6100758 |
Low noise resistively matched amplifier |
Aug. 8, 2000 |
| 6094099 |
High dynamic range variable gain distributed amplifier |
Jul. 25, 2000 |
| 6091275 |
Linear quad variable gain amplifier and method for implementing same |
Jul. 18, 2000 |
| 6087899 |
Optical transmitter module, and semiconductor integrated circuit capable of increasing gain and band of amplifier constructed from FET |
Jul. 11, 2000 |
| 6084473 |
Multipoint controlled high dynamic range variable gain amplifier |
Jul. 4, 2000 |
| 6084466 |
Variable gain current summing circuit with mutually independent gain and biasing |
Jul. 4, 2000 |
| 6084474 |
Auto gain controller having temperature compensation function |
Jul. 4, 2000 |
| 6084472 |
Multi-tanh triplet with optimal biasing |
Jul. 4, 2000 |
| 6084471 |
Soft-limiting control circuit for variable gain amplifiers |
Jul. 4, 2000 |
| 6078218 |
Negative amplifier circuit |
Jun. 20, 2000 |
| 6078219 |
Wide range single stage variable gain amplifier |
Jun. 20, 2000 |
| 6072366 |
Receiver capable of outputting a high quality signal without regard to an input signal level |
Jun. 6, 2000 |
| 6069866 |
System and method for coarse gain control of wide band amplifiers |
May. 30, 2000 |
| 6066944 |
High speed current mirror circuit and method |
May. 23, 2000 |
| 6052001 |
Method and circuit for varying transconductance and variable bandwidth filter and variable gain amplifier using the same |
Apr. 18, 2000 |
| 6052026 |
Linear gain controlled amplifier |
Apr. 18, 2000 |
| 6049252 |
Programmable-gain amplifier |
Apr. 11, 2000 |
| 6049251 |
Wide-dynamic-range variable-gain amplifier |
Apr. 11, 2000 |
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