| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 08/29/2007 | CN101026357A Cascode and serial low-noise amplifier implemented by single-end input and differential output |
| 08/29/2007 | CN101025895A Driving circuit |
| 08/29/2007 | CN100334774C Microwave switch and power amplifier thermal back-up, its mutual system and realization thereof |
| 08/28/2007 | US7263431 Analog input signal processing circuit |
| 08/28/2007 | US7262668 Semiconductor amplifier |
| 08/28/2007 | US7262666 Amplifier circuit having an extended Wilson current-mirror self-bias boosting circuit |
| 08/28/2007 | US7262664 Circuit and method for controlling quiescent current of an amplifier |
| 08/28/2007 | US7262663 Ultra high linearity amplifier |
| 08/28/2007 | US7262662 Operational amplifier |
| 08/28/2007 | US7262661 Variable gain amplifier with temperature compensation and gain linearity enhancement |
| 08/28/2007 | US7262660 Variable gain amplifier having linear-in-decibel transconductance |
| 08/28/2007 | US7262659 Adaptable voltage control for a variable gain amplifier |
| 08/28/2007 | US7262658 Class-D amplifier system |
| 08/28/2007 | US7262656 Circuit for parallel operation of Doherty amplifiers |
| 08/28/2007 | US7262638 Current sense amplifier |
| 08/28/2007 | US7262480 Semiconductor device, and method and apparatus for manufacturing semiconductor device |
| 08/23/2007 | WO2007094241A1 Transmission circuit |
| 08/23/2007 | WO2007074231A3 Method and device for adjusting or setting an electronic device |
| 08/23/2007 | US20070198201 Configurable voltage regulator |
| 08/23/2007 | US20070196959 Thin film transistor circuit and display utilizing the same |
| 08/23/2007 | US20070195017 Organic El Driver Circuit And Organic El Display Device |
| 08/23/2007 | US20070194961 Method and device for the version of digital signals with heterogeneous formats and application thereof to the digital amplification of audio signals |
| 08/23/2007 | US20070194856 High frequency power amplifying circuit and high frequency electronic component using the same |
| 08/23/2007 | US20070194855 Continuous-time delta-sigma analog digital converter having operational amplifiers |
| 08/23/2007 | US20070194854 Transconductance filtering circuit |
| 08/23/2007 | US20070194853 High-power amplifier |
| 08/23/2007 | US20070194851 Apparatus and method for affecting operation of a signal treating device |
| 08/23/2007 | US20070194850 Dynamically compensated operational amplifier |
| 08/23/2007 | US20070194849 Method for nullifying temperature dependence and circuit therefor |
| 08/23/2007 | US20070194848 Variable Gain Amplifier |
| 08/23/2007 | US20070194847 Operational amplifier |
| 08/23/2007 | US20070194846 Multiplier-transimpedance amplifier combination with input common mode feedback |
| 08/23/2007 | US20070194845 Power Supply Feed Forward Analog Input Filter Component Mismatch Correction |
| 08/23/2007 | US20070194767 Step-down circuit with stabilized output voltage |
| 08/23/2007 | US20070194377 Thin film semiconductor device and manufacturing method |
| 08/23/2007 | US20070194210 Light emitting apparatus and control method thereof |
| 08/23/2007 | DE19913655B4 Verstärkerschaltung für einen Infrarotsensor Amplifier circuit for an infrared sensor |
| 08/22/2007 | EP1821404A1 Device for coupling a high-frequency signal |
| 08/22/2007 | EP1820270A2 Amplifier system with current-mode servo feedback |
| 08/22/2007 | EP1820267A1 Controllable power operational transconductance amplifier |
| 08/22/2007 | CN2938667Y Power amplification controller for fire emergency broadcast |
| 08/22/2007 | CN2938655Y Power amplification unit in radio communication system |
| 08/22/2007 | CN101023642A Apparatus for receiving a differential signal using a differential amplifier |
| 08/22/2007 | CN101023580A Audio power amplifier ic and audio system equipped therewith |
| 08/22/2007 | CN101023578A Distortion compensating amplifier apparatus |
| 08/22/2007 | CN101022268A D type amplifier and modulating method thereof |
| 08/22/2007 | CN101022266A 功率放大器 PA |
| 08/21/2007 | US7260422 Monolithic optical autocompensation read-out circuit for distance dependent loudness control in mobile phones |
| 08/21/2007 | US7260377 Variable-gain low noise amplifier for digital terrestrial applications |
| 08/21/2007 | US7260375 Frequency agile RF circuit |
| 08/21/2007 | US7259632 Method for cascoding amplifiers by modulating isolated power supply reference points |
| 08/21/2007 | US7259631 Photoreceptor amplifier circuit and optical pickup |
| 08/21/2007 | US7259630 Elimination of peak clipping and improved efficiency for RF power amplifiers with a predistorter |
| 08/21/2007 | US7259629 Variable gain amplifier with improved control characteristics linearity |
| 08/21/2007 | US7259628 Signal dependent biasing scheme for an amplifier |
| 08/21/2007 | US7259627 True differential microphone amplifier |
| 08/21/2007 | US7259626 Apparatus and method for biasing cascode devices in a differential pair using the input, output, or other nodes in the circuit |
| 08/21/2007 | US7259625 High Q monolithic inductors for use in differential circuits |
| 08/21/2007 | US7259624 Low noise AC coupled amplifier with low band-pass corner and low power |
| 08/21/2007 | US7259623 RF generator with reduced size and weight |
| 08/21/2007 | US7259622 RF generator with phase controlled MOSFETs |
| 08/21/2007 | US7259621 Distortion compensating device and power amplifying device with distortion compensating function |
| 08/21/2007 | US7259619 Amplifier circuit with reduced power-on transients and method thereof |
| 08/21/2007 | US7259618 Systems and methods for load detection and correction in a digital amplifier |
| 08/21/2007 | US7259617 Apparatus and method for effecting signal chopping in an amplifier device |
| 08/21/2007 | US7259616 Method for single-ended offset compensation of an operational amplifier |
| 08/21/2007 | US7259615 Bias voltage supply circuit and radio-frequency amplification circuit |
| 08/21/2007 | US7259609 Clamping circuit |
| 08/21/2007 | US7259363 Circuit arrangement and methods for a remote control receiver having a photodiode |
| 08/21/2007 | CA2550502C Audio amplifier |
| 08/16/2007 | WO2007090315A1 Signal modulation scheme in class-d amplification and circuit therefor |
| 08/16/2007 | WO2006121629B1 System and method for providing an input to a distributed power amplifying system |
| 08/16/2007 | US20070188966 Magnetic bearing device and a turbo molecular pump with the magnetic bearing device mounted thereto |
| 08/16/2007 | US20070188240 Ultra-wideband constant gain cmos amplifier |
| 08/16/2007 | US20070188239 Integrated circuit having a filter circuit |
| 08/16/2007 | US20070188238 Single-Ended Input to Differential-Ended Output Low Noise Amplifier Implemented with Cascode and Cascade Topology |
| 08/16/2007 | US20070188237 Controlling the ratio of amplification factors between linear amplifiers |
| 08/16/2007 | US20070188234 Transconductance circuit with improved linearity |
| 08/16/2007 | US20070188233 Amplifier device |
| 08/16/2007 | US20070188232 Wideband CMOS gain stage |
| 08/16/2007 | US20070188231 Multi-Path Common Mode Feedback for High Speed Multi-Stage Amplifiers |
| 08/16/2007 | US20070188230 Differential signal receiver |
| 08/16/2007 | US20070188229 Variable gain amplifier with constant input referred third order intercept |
| 08/16/2007 | US20070188228 Series voltage regulator with low dropout voltage |
| 08/16/2007 | US20070188227 Amplifier |
| 08/16/2007 | US20070188226 Power amplifier input structure having a differential output |
| 08/16/2007 | US20070188224 CDMA power amplifier design for low and high power modes |
| 08/16/2007 | US20070188223 Operational amplifier |
| 08/16/2007 | US20070188222 Self-oscillating switching amplifier |
| 08/16/2007 | US20070188221 Digital amplifier apparatus and method of resetting a digital amplifier apparatus |
| 08/16/2007 | US20070188220 Digital amplifier apparatus and method of muting digital amplifier apparatus |
| 08/16/2007 | US20070188215 A-AB transconductor |
| 08/16/2007 | DE102006004952A1 Differenzverstärker ind Funksystem mit Differenzverstärker Differential amplifier ind radio system with differential amplifier |
| 08/16/2007 | DE102005058039B4 Schaltungsanordnung und Verfahren zur Verstärkung eines elektrischen Eingangssignals Circuit arrangement and method for amplifying an electrical input signal |
| 08/15/2007 | EP1819059A1 Transmission modulation apparatus, communication device, and mobile wireless unit |
| 08/15/2007 | EP1819052A1 Method for use in pulse-width modulation, and pulse-width modulator |
| 08/15/2007 | EP1500189B1 Operational amplifier with increased common mode input range |
| 08/15/2007 | EP1488510B1 A-ab transconductor |
| 08/15/2007 | EP1394938B1 System including a gain switching circuit and method of switching gain of pre-amplifier |
| 08/15/2007 | CN2935630Y Usb数字音频功率放大器 Usb Digital Audio Power Amplifier |