| |
 |
|
Class Information
Number: 330/295
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including plural amplifier channels
Description: Subject matter having more than one signal transmission path, each of which contains an amplifier (e.g., plural inputs or plural outputs).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7459974 |
System and method for distortion cancellation in amplifiers |
Dec. 2, 2008 |
| 7456692 |
Gain variable amplifier |
Nov. 25, 2008 |
| 7457592 |
Polar modulation transmission apparatus and wireless communication apparatus |
Nov. 25, 2008 |
| 7456687 |
Amplifier unit and method of detecting failure in the same |
Nov. 25, 2008 |
| 7453320 |
Amplifier |
Nov. 18, 2008 |
| 7449957 |
Radio frequency power amplifier |
Nov. 11, 2008 |
| 7436258 |
Multi-operational amplifier system |
Oct. 14, 2008 |
| 7436253 |
Method and system for fast calibration to cancel phase feedthrough |
Oct. 14, 2008 |
| 7429894 |
Power device having connection structure compensating for reactance component of transmission line |
Sep. 30, 2008 |
| 7425872 |
Radio frequency power amplifier |
Sep. 16, 2008 |
| 7420413 |
Amplifier circuit of BTL system |
Sep. 2, 2008 |
| 7417501 |
Variable inductor, oscillator including the variable inductor and radio terminal comprising this oscillator, and amplifier including the variable inductor and radio terminal comprising this am |
Aug. 26, 2008 |
| 7414478 |
Integrated parallel power amplifier |
Aug. 19, 2008 |
| 7414477 |
Distributed amplifier topologies with improved gain bandwidth product |
Aug. 19, 2008 |
| 7414468 |
Amplifier, filter using the same, and radio communication device |
Aug. 19, 2008 |
| 7414465 |
Amplifier arrangement |
Aug. 19, 2008 |
| 7411449 |
Composite power amplifier |
Aug. 12, 2008 |
| 7411450 |
Circuit and method for amplification of an electrical input signal |
Aug. 12, 2008 |
| 7408404 |
Preserving linearity of an isolator-free power amplifier by dynamically switching active devices |
Aug. 5, 2008 |
| 7400198 |
Active circuit having improved linearity using multiple gated transistor |
Jul. 15, 2008 |
| 7400200 |
Linear variable gain traveling wave amplifier |
Jul. 15, 2008 |
| 7400199 |
Semiconductor integrated circuit apparatus |
Jul. 15, 2008 |
| 7400193 |
Ultra wide band, differential input/output, high frequency active splitter in an integrated circuit |
Jul. 15, 2008 |
| 7397308 |
Traveling wave amplifier with distributed regenerative feedback between drain-to-drain transmission lines and gate-to-gate transmission lines for enhanced high frequency bandwidth |
Jul. 8, 2008 |
| 7391259 |
Power amplifier |
Jun. 24, 2008 |
| 7388433 |
Ground inductance compensated quadrature radio frequency amplifier |
Jun. 17, 2008 |
| 7382194 |
Switched distributed power amplifier |
Jun. 3, 2008 |
| 7375588 |
Transmission amplifier |
May. 20, 2008 |
| 7369822 |
Segmented switching power amplifier |
May. 6, 2008 |
| 7365602 |
Multilevel power amplifier architecture using multi-tap transformer |
Apr. 29, 2008 |
| 7362183 |
Amplifier circuit improved in linearity and frequency band |
Apr. 22, 2008 |
| 7358806 |
Method and apparatus for an improved power amplifier |
Apr. 15, 2008 |
| 7345535 |
Power amplification apparatus of portable terminal |
Mar. 18, 2008 |
| 7342444 |
Power amplifying apparatus using asymmetric power drive |
Mar. 11, 2008 |
| 7339435 |
Amplifier and device having amplifier, and mutual conductance control method |
Mar. 4, 2008 |
| 7336125 |
Power amplifier and transmitter |
Feb. 26, 2008 |
| 7336127 |
Doherty amplifier configuration for a collector controlled power amplifier |
Feb. 26, 2008 |
| 7333780 |
Polar modulation transmission apparatus and radio communication apparatus |
Feb. 19, 2008 |
| 7333831 |
Interchangeable receive inputs for band and system swappability in communication systems and related methods |
Feb. 19, 2008 |
| 7332960 |
Method and apparatus for an improved power amplifier |
Feb. 19, 2008 |
| 7330071 |
High efficiency radio frequency power amplifier having an extended dynamic range |
Feb. 12, 2008 |
| 7330077 |
Monolithically integrated power amplifier device |
Feb. 12, 2008 |
| 7323937 |
Variable-gain amplifier |
Jan. 29, 2008 |
| 7319364 |
Amplifier circuit having improved linearity and frequency band using multiple gated transistor |
Jan. 15, 2008 |
| 7315207 |
Doherty amplifier and its distortion characteristic compensation method |
Jan. 1, 2008 |
| 7312673 |
Radial power divider/combiner |
Dec. 25, 2007 |
| 7310019 |
High frequency power amplifier |
Dec. 18, 2007 |
| 7307479 |
Handset radiofrequency front end module in fine pitch quad flat no lead (FQFP-N) package |
Dec. 11, 2007 |
| 7304537 |
Power amplification apparatus of a portable terminal |
Dec. 4, 2007 |
| 7301396 |
System and method for distortion cancellation in amplifiers |
Nov. 27, 2007 |
|
|
|
