| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 05/07/2008 | CN101174820A Matching circuit and multiband amplifier |
| 05/07/2008 | CN101174816A Digital predistortion linearized processing equipment and power detecting method thereof |
| 05/07/2008 | CN101174507A Low-loss adjustable ferroelectric device and its characterization method |
| 05/07/2008 | CN101174390A Drift compensation signal generating devices and methods for peak clipper |
| 05/07/2008 | CN100386964C Amplifier of power supply by AC power supply in switch condenser circuit |
| 05/07/2008 | CN100386963C Audio reproducing apparatus and method |
| 05/06/2008 | US7369817 Semiconductor integrated circuit |
| 05/06/2008 | US7369566 Method and system for DSL power saving |
| 05/06/2008 | US7368999 DC offset cancellation for a trans-impedance amplifier |
| 05/06/2008 | US7368998 Inductor element containing circuit board and power amplifier module |
| 05/06/2008 | US7368997 Signal amplifier and integrated circuit |
| 05/06/2008 | US7368996 High frequency power amplifier |
| 05/06/2008 | US7368995 Power amplifier with active bias circuit |
| 05/06/2008 | US7368994 Class AB enhanced transconductance source follower |
| 05/06/2008 | US7368993 Transconductance circuit with improved linearity |
| 05/06/2008 | US7368992 Load-invariant amplifier |
| 05/06/2008 | US7368991 System and method for clamping a differential amplifier |
| 05/06/2008 | US7368990 Differential amplifier and data driver employing the differential amplifier |
| 05/06/2008 | US7368989 High bandwidth apparatus and method for generating differential signals |
| 05/06/2008 | US7368986 Power amplifier with low power distortion at output |
| 05/06/2008 | US7368985 High frequency power amplifier and transmitter |
| 05/06/2008 | US7368984 Switching class A-B amplifier |
| 05/06/2008 | US7368981 Limit circuit |
| 05/06/2008 | US7368968 Signal offset cancellation |
| 05/06/2008 | US7368955 Current-balanced logic circuit |
| 05/02/2008 | WO2008051917A2 Inter-stage matching network to enhance common mode stability |
| 05/02/2008 | WO2008051127A1 Switched modulation of a radio-frequency amplifier |
| 05/02/2008 | WO2008050833A1 Transmission method and transmission device |
| 05/02/2008 | WO2008050440A1 Power amplifier |
| 05/02/2008 | WO2008050273A2 Class d amplifier |
| 05/02/2008 | WO2008050272A2 Voltage-boosting stage |
| 05/02/2008 | WO2008050267A2 Power amplifier |
| 05/02/2008 | WO2008023340A3 Filter-tracking and control method |
| 05/02/2008 | WO2008008777A3 Amplifier employing interleaved signals for pwm ripple suppression |
| 05/01/2008 | US20080102759 Circuit And Method For Biasing A Gallium Arsenide (GaAs) Power Amplifier |
| 05/01/2008 | US20080101802 Receiving Apparatus and Electronic Device Using the Same |
| 05/01/2008 | US20080101628 Switching amplifier circuits and methods |
| 05/01/2008 | US20080100383 Bias circuit |
| 05/01/2008 | US20080100382 System And Method For Pre-Charging A Current Mirror |
| 05/01/2008 | US20080100381 Common drain driven cascode enhancement mode traveling wave amplifier |
| 05/01/2008 | US20080100380 Operational amplifier and display device |
| 05/01/2008 | US20080100347 Signal detecting circuit |
| 04/30/2008 | EP1916775A1 Antenna device and portable radio communication device comprising such antenna device |
| 04/30/2008 | EP1916735A1 Bias circuit |
| 04/30/2008 | DE112006001593T5 Temperaturkompensierter, mit MMICs integrierter Spannungsregler Temperature compensated, integrated with MMICs voltage regulator |
| 04/30/2008 | DE102007027047A1 Hochfrequenzleistungsverstärker High frequency power amplifier |
| 04/30/2008 | DE10164971B4 Pseudo-differentieller Leitungstreiber zur Verstärkung eines differentiellen Eingangsstroms Pseudo-differential line driver for amplifying a differential input current |
| 04/30/2008 | CN201054566Y A power amplifier for space application |
| 04/30/2008 | CN101171745A Receiver having a gain-controllable input amplifier |
| 04/30/2008 | CN101171744A System and method for providing an input to a distributed power amplifying system |
| 04/30/2008 | CN101170304A A current imposing sequence control circuit for power amplifier |
| 04/30/2008 | CN101170300A High-frequency power amplifier |
| 04/30/2008 | CN101170299A Operational amplifier and display device |
| 04/30/2008 | CN101170297A Calculation amplifier with wide work voltage scope in band gap circuit |
| 04/30/2008 | CN100385792C Off-centre compensation circuit and off-centre compensation method |
| 04/30/2008 | CN100385476C Semiconductor device and display device using the same and electronic device |
| 04/29/2008 | US7366482 Transmission device, transmission output control method, and radio communications device |
| 04/29/2008 | US7366481 Apparatus for radio telecommunication system and method of building up output power |
| 04/29/2008 | US7365606 Receiving amplifier, in particular for television receivers, and use of the receiving amplifier |
| 04/29/2008 | US7365605 High voltage, high current, and high accuracy amplifier |
| 04/29/2008 | US7365604 RF amplifier with a bias boosting scheme |
| 04/29/2008 | US7365603 FET amplifier, pulse modulation module, and radar device |
| 04/29/2008 | US7365602 Multilevel power amplifier architecture using multi-tap transformer |
| 04/29/2008 | US7365601 Amplifier for amplifying a signal |
| 04/29/2008 | US7365600 Non-feedback implemented control of the output-common mode of a differential amplifier |
| 04/29/2008 | US7365599 Glitch-free controllable RF power amplifier |
| 04/29/2008 | US7365598 Global loop integrating modulator |
| 04/24/2008 | WO2008047693A1 Low noise amplifier |
| 04/24/2008 | WO2008047323A1 Power amplifier |
| 04/24/2008 | WO2008046247A1 Switching amplifier |
| 04/24/2008 | WO2003092153A3 Rf power amplifier employing bias circuit topologies for minimization of rf amplifier memory effects |
| 04/24/2008 | US20080096516 Multi-band low noise amplifier and multi-band radio frequency receiver including the same |
| 04/24/2008 | US20080095266 Adaptive controller for linearization of transmitter with impairments |
| 04/24/2008 | US20080094143 Dc coupled microwave amplifier with adjustable offsets |
| 04/24/2008 | US20080094142 Power amplifier |
| 04/24/2008 | US20080094141 High-frequency power amplifier |
| 04/24/2008 | US20080094140 Ratio-independent switched capacitor amplifiers and methods of operating ratio-independent switched capacitor amplifiers |
| 04/24/2008 | US20080094137 Power control and modulation of switched-mode power amplifiers with one or more stages |
| 04/24/2008 | US20080094136 Amplifier circuit and method of generating bias voltage in amplifier circuit |
| 04/24/2008 | US20080094110 Transconductor Circuits |
| 04/23/2008 | EP1914887A2 Differential amplifier with current source controlled through differential feedback |
| 04/23/2008 | EP1914883A2 Analog signal transmission circuit |
| 04/23/2008 | EP1913688A2 Method and apparatus for implementing soft switching in a class d amplifier |
| 04/23/2008 | EP1913687A1 Audio power amplifier apparatus |
| 04/23/2008 | EP1392195B1 Integrated low-corner frequency high pass filter circuit |
| 04/23/2008 | CN101167249A Receiver comprising an amplifier |
| 04/23/2008 | CN101167245A Differential inductor-based low noise amplifier |
| 04/23/2008 | CN101167244A Gate driver for class D audio amplifier with adaptive DV/DT control |
| 04/23/2008 | CN101167243A Polar coordinate modulating circuit, integrated circuit and radio apparatus |
| 04/23/2008 | CN101166016A Ratio-independent switched capacitor amplifiers and methods of operating ratio-independent switched capacitor amplifiers |
| 04/23/2008 | CN101166015A Circuit and method of reducing pop-up noise in a digital amplifier |
| 04/23/2008 | CN101166014A Power amplifier |
| 04/23/2008 | CN101166013A Differential amplifier using body-source cross coupling |
| 04/23/2008 | CN100384085C Power amplifier driver system for wireless handset |
| 04/22/2008 | US7362871 Audio amplifier circuit and audio IC having the same |
| 04/22/2008 | US7362839 Techniques to adjust vertical offset |
| 04/22/2008 | US7362183 Amplifier circuit improved in linearity and frequency band |
| 04/22/2008 | US7362182 Power amplifier |
| 04/22/2008 | US7362180 Protection circuit of digital amplifier |
| 04/22/2008 | US7362179 Power amplifier circuit and method thereof |