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Class Information
Number: 330/51
Name: Amplifiers > Combined with automatic amplifier disabling switch means
Description: Subject matter combined with switch means, which may be of the electromechanical or electronic tube type (vacuum, gas, or vapor tubes), to disable or discontinue the operation of the amplifier automatically in response to a predetermined condition.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7459967 |
Differential amplifier, digital-to-analog converter and display device |
Dec. 2, 2008 |
| 7459969 |
Transmitter power amplifier working at different power supplies |
Dec. 2, 2008 |
| 7459970 |
Method and apparatus for optimizing power dissipation in a low noise amplifier |
Dec. 2, 2008 |
| 7453321 |
Amplifier arrangement and method of signal amplification |
Nov. 18, 2008 |
| 7444124 |
Adjustable segmented power amplifier |
Oct. 28, 2008 |
| 7443236 |
CDMA power amplifier design for low and high power modes |
Oct. 28, 2008 |
| 7443233 |
DC offset cancellation apparatus |
Oct. 28, 2008 |
| 7436257 |
High-efficiency mixed-mode power amplifier |
Oct. 14, 2008 |
| 7436258 |
Multi-operational amplifier system |
Oct. 14, 2008 |
| 7432761 |
Amplifier circuit, semiconductor device and electronic apparatus |
Oct. 7, 2008 |
| 7427894 |
Dual-mode, dual-load high efficiency RF power amplifier |
Sep. 23, 2008 |
| 7427893 |
Circuit and method for controlling the power mode a class-D amplifier |
Sep. 23, 2008 |
| 7420425 |
Power amplifier and method thereof |
Sep. 2, 2008 |
| 7420412 |
Multiple power mode amplifier with bias modulation option and without bypass switches |
Sep. 2, 2008 |
| 7414480 |
Differential/single-ended input stage |
Aug. 19, 2008 |
| 7414464 |
Op driver with the function of canceling op offset |
Aug. 19, 2008 |
| 7414465 |
Amplifier arrangement |
Aug. 19, 2008 |
| 7408411 |
High linearity programmable gain amplifier using switch |
Aug. 5, 2008 |
| 7408405 |
High-frequency power amplifier module |
Aug. 5, 2008 |
| 7408402 |
Operational amplifier with less offset voltage |
Aug. 5, 2008 |
| 7408404 |
Preserving linearity of an isolator-free power amplifier by dynamically switching active devices |
Aug. 5, 2008 |
| 7400192 |
Low noise amplifier and differential amplifier with variable gain mode |
Jul. 15, 2008 |
| 7397302 |
Variable gain amplifier |
Jul. 8, 2008 |
| 7394313 |
Multiple power mode amplifier with bias modulation option and without bypass switches |
Jul. 1, 2008 |
| 7394312 |
Re-configurable amplifier protection apparatus and method |
Jul. 1, 2008 |
| 7391264 |
Amplifier |
Jun. 24, 2008 |
| 7388427 |
Multiple power mode amplifier with bias modulation option and without bypass switches |
Jun. 17, 2008 |
| 7385445 |
High efficiency amplifier circuits having bypass paths |
Jun. 10, 2008 |
| 7382186 |
Amplifiers with high efficiency in multiple power modes |
Jun. 3, 2008 |
| 7382192 |
Bias current compensation circuit for a differential input stage |
Jun. 3, 2008 |
| 7382185 |
Loop segment switching system |
Jun. 3, 2008 |
| 7375589 |
Power amplifier system provided with improved protection function |
May. 20, 2008 |
| 7372325 |
Mute circuit |
May. 13, 2008 |
| 7372326 |
Radio frequency parallel amplifier |
May. 13, 2008 |
| 7365602 |
Multilevel power amplifier architecture using multi-tap transformer |
Apr. 29, 2008 |
| 7365599 |
Glitch-free controllable RF power amplifier |
Apr. 29, 2008 |
| 7362169 |
Power efficient amplifier |
Apr. 22, 2008 |
| 7358804 |
Amplifier turn-on speedup technique |
Apr. 15, 2008 |
| 7358802 |
Multi-phase techniques for tuning and/or measuring operations of an amplifier |
Apr. 15, 2008 |
| 7352239 |
Power amplification apparatus using switching structure in a wireless communication system and method for controlling the same |
Apr. 1, 2008 |
| 7348841 |
Multiple power mode amplifier with bias modulation option and without bypass switches |
Mar. 25, 2008 |
| 7345530 |
Regulated switch driving scheme in switched-capacitor amplifiers with opamp-sharing |
Mar. 18, 2008 |
| 7345534 |
Efficient power amplification system |
Mar. 18, 2008 |
| 7345540 |
Amplifier circuit having a compensating amplifier unit for improving loop gain and linearity |
Mar. 18, 2008 |
| 7342442 |
Variable gain amplifying apparatus and wireless communication apparatus |
Mar. 11, 2008 |
| 7342443 |
Operational amplifier |
Mar. 11, 2008 |
| 7343256 |
Configurable voltage regulator |
Mar. 11, 2008 |
| 7339997 |
Line driver and method of operating the same |
Mar. 4, 2008 |
| 7339435 |
Amplifier and device having amplifier, and mutual conductance control method |
Mar. 4, 2008 |
| 7336131 |
Gigabit ethernet transceiver with analog front end |
Feb. 26, 2008 |
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