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Class Information
Number: 330/278
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including gain control means
Description: Subject matter including circuitry which controls the amplification of the applied signal.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7456689 |
Amplifier circuit and gain control method thereof |
Nov. 25, 2008 |
| 7443242 |
AGC circuit |
Oct. 28, 2008 |
| 7443435 |
Column amplifier with automatic gain selection for CMOS image sensors |
Oct. 28, 2008 |
| 7432763 |
Gain boosting for tuned differential LC circuits |
Oct. 7, 2008 |
| 7433662 |
Mixer gain control with gain tracking offsets |
Oct. 7, 2008 |
| 7429891 |
Method and system for low noise amplifier (LNA) gain adjustment through narrowband received signal strength indicator (NRSSI) |
Sep. 30, 2008 |
| 7415254 |
Power control circuit, semiconductor device and transceiver circuit using the same |
Aug. 19, 2008 |
| 7411456 |
AGC circuit |
Aug. 12, 2008 |
| 7408407 |
Low noise variable gain amplifier |
Aug. 5, 2008 |
| 7395039 |
Transmitter |
Jul. 1, 2008 |
| 7391829 |
Apparatus, system and method for receiver equalization |
Jun. 24, 2008 |
| 7386280 |
Gain insensitive high-pass VGA |
Jun. 10, 2008 |
| 7386075 |
Apparatus for and method of optimizing the performance of a radio frequency receiver in the presence of interference |
Jun. 10, 2008 |
| 7382193 |
Preserving linearity of an isolator-free power amplifier by dynamically adjusting gain and phase |
Jun. 3, 2008 |
| 7369781 |
Burst mode optical receiver considering characteristic of extinction ratio of received optical signal |
May. 6, 2008 |
| 7362178 |
Wide dynamic range amplifier gain control |
Apr. 22, 2008 |
| 7358818 |
Optical receiver for an optical communication |
Apr. 15, 2008 |
| 7352242 |
Programmable gain trim circuit |
Apr. 1, 2008 |
| 7352241 |
Variable gain amplifier |
Apr. 1, 2008 |
| 7352240 |
Method and apparatus for protecting devices in an RF power amplifier |
Apr. 1, 2008 |
| 7353010 |
Techniques for fast automatic gain control |
Apr. 1, 2008 |
| 7339434 |
Linear-in-dB variable gain amplifier using geometric ladder circuit |
Mar. 4, 2008 |
| 7340229 |
High frequency amplification circuit and mobile communication terminal using the same |
Mar. 4, 2008 |
| 7336935 |
Dynamic power control circuit of wireless communication device |
Feb. 26, 2008 |
| 7332964 |
Gain-step transconductor |
Feb. 19, 2008 |
| 7317357 |
High linearity low noise variable gain amplifier with continuous gain control |
Jan. 8, 2008 |
| 7312856 |
Programmable pulse capture device with automatic gain control |
Dec. 25, 2007 |
| 7298212 |
Automatic level control circuit with improved attack action |
Nov. 20, 2007 |
| 7298207 |
Automatic gain control for a multi-stage gain system |
Nov. 20, 2007 |
| 7286014 |
Variable gain device |
Oct. 23, 2007 |
| 7286015 |
Linear-in-dB variable gain amplifiers with an adaptive bias current |
Oct. 23, 2007 |
| 7286017 |
Controllable RF broadband and amplifier with a constant input impedance |
Oct. 23, 2007 |
| 7274257 |
Variable gain wideband amplifier |
Sep. 25, 2007 |
| 7268617 |
Doherty microwave amplifier and signal processing method thereof |
Sep. 11, 2007 |
| 7262659 |
Adaptable voltage control for a variable gain amplifier |
Aug. 28, 2007 |
| 7257178 |
Base band circuit of receiver and low cut-off frequency control method |
Aug. 14, 2007 |
| 7257382 |
High frequency amplifier circuit permitting variable gain control |
Aug. 14, 2007 |
| 7245179 |
Auto gain controller |
Jul. 17, 2007 |
| 7242247 |
Distortion compensation circuit, power amplifier using distortion compensation circuit, and distortion compensation signal generating method |
Jul. 10, 2007 |
| 7239205 |
High frequency amplifier circuit and mobile communication terminal using the same |
Jul. 3, 2007 |
| 7233206 |
Semiconductor integrated circuit device and wireless communication system |
Jun. 19, 2007 |
| 7221226 |
Amplifying apparatus with automatic level controller |
May. 22, 2007 |
| 7221217 |
Self-bias and digitally tunable conduction angle circuits for a differential RF non-linear power amplifier employing low-voltage transistors |
May. 22, 2007 |
| 7215196 |
Variable impedance circuit, variable gain differential amplifier, multiplier, high-frequency circuit and differential distributed amplifier |
May. 8, 2007 |
| 7215197 |
Programmable gain instrumentation amplifier with improved gain multiplexers |
May. 8, 2007 |
| 7215202 |
Programmable gain amplifier and method |
May. 8, 2007 |
| 7212798 |
Adaptive AGC in a wireless network receiver |
May. 1, 2007 |
| 7202731 |
Variable distortion limiter using clip detect predictor |
Apr. 10, 2007 |
| 7202740 |
Gain boosting for tuned differential LC circuits |
Apr. 10, 2007 |
| 7202742 |
Digital amplification device |
Apr. 10, 2007 |
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