| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 06/23/2005 | US20050134380 Switched capacitor circuit with reduced common-mode variations |
| 06/23/2005 | US20050134379 Multi-port cross-connected multi-level cascode differential amplifier |
| 06/23/2005 | US20050134378 Input structure for a power amplifier and associated methods |
| 06/23/2005 | US20050134376 Circuit and method of establishing DC bias levels in an RF power amplifier |
| 06/23/2005 | US20050134375 Circuit and method of reducing noise in an RF power amplifier |
| 06/23/2005 | US20050134374 Mixed-mode (current-voltage) audio amplifier |
| 06/23/2005 | US20050134373 Switchable gain amplifier |
| 06/23/2005 | US20050134372 High frequency high power H-bridge power amplifier |
| 06/23/2005 | US20050134371 Offset cancellation and slice adjust amplifier circuit |
| 06/23/2005 | US20050134368 Switching scheme to improve linearity and noise in switched capacitor stage with switched feedback capacitor |
| 06/23/2005 | US20050134366 Current source circuit and amplifier using the same |
| 06/23/2005 | US20050134359 Metal-oxide-semiconductor device having integrated bias circuit |
| 06/23/2005 | US20050134329 Transconductor circuit for compensating the distortion of output current |
| 06/23/2005 | US20050134328 Transconductor circuit for compensating the distortion of output current |
| 06/23/2005 | US20050134320 Actuation circuit for MEMS structures |
| 06/23/2005 | US20050134310 One-level zero-current-state exclusive or (XOR) gate |
| 06/23/2005 | US20050134246 Voltage generation circuit |
| 06/23/2005 | US20050134118 System and method for driving one or more loads |
| 06/23/2005 | US20050133695 Photodetector and optical receiver |
| 06/23/2005 | US20050133233 Slotted planar power conductor |
| 06/23/2005 | DE10345519B3 Differential amplifier arrangement has two transistor pairs with common source or emitter nodes respectively connected via current source and directly to reference potential connection |
| 06/23/2005 | DE10035060B4 Leistungsverstärkungsschaltung mit einer einstellbaren Impedanz am Ausgang zum Steuern des Spitzen-Mittelwert-Leistungs-Verhältnisses des verstärkten Signals und Verfahren Power amplifier circuit with an adjustable impedance at the output for controlling the peak to average power ratio of the amplified signal and method |
| 06/22/2005 | EP1544996A1 Volume adjustment device, digital amplifier, and digital signal reproducing device |
| 06/22/2005 | EP1543639A1 A transmitter and a method of calibrating power in signals output from a transmitter |
| 06/22/2005 | EP1543625A1 Method for optimizing an operating point of a power amplifier in a wcdma mobile terminal |
| 06/22/2005 | EP1543618A1 Transistor circuit |
| 06/22/2005 | EP1543617A1 Analog load driver |
| 06/22/2005 | EP1543612A2 Power supply based audio compression for digital audio amplifier |
| 06/22/2005 | EP1543611A2 Providing dc isolation in switching amplifiers |
| 06/22/2005 | EP1428093A4 Amplifier having a variable power factor |
| 06/22/2005 | CN2705949Y Low distortion amplifier |
| 06/22/2005 | CN1631029A Driver circuit for subscriber terminals |
| 06/22/2005 | CN1630979A Charge or particle detecting device and detecting method |
| 06/22/2005 | CN1630186A Voltage generation circuit |
| 06/22/2005 | CN1630185A Amplification device with a bias circuit |
| 06/22/2005 | CN1630081A Wireless output chip integrated with a power detecting circuit and related manufacturing method |
| 06/22/2005 | CN1629762A Current switch circuit, amplifier, and mobile terminal |
| 06/22/2005 | CN1629760A Current amplifying circuit with stabilized output voltage and liquid crystal display including the same |
| 06/22/2005 | CN1207787C Combined transistor-capacitor structure in deep sub-micro MOS for power amplifier |
| 06/21/2005 | US6909884 Amplifier phase change compensation |
| 06/21/2005 | US6909391 Fully differential reference driver for pipeline analog to digital converter |
| 06/21/2005 | US6909344 Band switchable filter |
| 06/21/2005 | US6909328 Device for converting a differential signal to a single signal |
| 06/21/2005 | US6909327 Amplifier |
| 06/21/2005 | US6909326 Amplifier modulation |
| 06/21/2005 | US6909325 Multi-band amplifier |
| 06/21/2005 | US6909324 High-efficiency solid state power amplifier |
| 06/21/2005 | US6909309 Current-controlled CMOS circuits with inductive broadbanding |
| 06/21/2005 | US6909235 Power regulator for intermittent use of traveling wave tube amplifiers in communications satellites |
| 06/21/2005 | US6909082 Automatic threshold control device for burst mode optical receiver |
| 06/21/2005 | US6909081 Evaluation circuit for processing the output of a light detector |
| 06/16/2005 | WO2005055658A1 A moving sound amplifier |
| 06/16/2005 | WO2005055419A1 Gain-variable voltage/current converting circuit having current compensating circuit for compensating for variation of dc current flowing through active element that performs voltage/current conversion |
| 06/16/2005 | WO2005055418A1 High-frequency amplifier and high-frequency radio communication device |
| 06/16/2005 | WO2005055417A1 Operational amplifier with output voltage correction and corresponding method |
| 06/16/2005 | WO2005055416A1 Photo-receiving pre-amplifier |
| 06/16/2005 | WO2005055415A2 Single chip power amplifier and envelope modulator |
| 06/16/2005 | WO2005036731A3 Power conversion system |
| 06/16/2005 | WO2005031977A3 Phase conjugation circuit |
| 06/16/2005 | WO2005031968B1 Input/output signals preserver circuit of amplification circuits |
| 06/16/2005 | WO2005017956A3 Temperature-insensitive bias circuit for high-power amplifiers |
| 06/16/2005 | WO2005015734A3 Variable gain amplifier system |
| 06/16/2005 | US20050130617 Variable-gain low noise amplifier for digital terrestrial applications |
| 06/16/2005 | US20050130608 Self-tuning variable impedance circuit for impedance matching of power amplifiers |
| 06/16/2005 | US20050129142 Filter for a modulator and methods thereof |
| 06/16/2005 | US20050129140 System and method for reducing dynamic range and improving linearity in an amplication system |
| 06/16/2005 | US20050128032 Tunable planar capacitor |
| 06/16/2005 | US20050128025 Ultralow temperature low noise amplification apparatus |
| 06/16/2005 | US20050128007 Preamplifier circuit, clock switching circuit, and optical receiver |
| 06/16/2005 | US20050128006 Transimpedance amplifier with linearized transconductance feedback |
| 06/16/2005 | US20050128005 Transconductance amplifier with multi-emitter structure for current balance in a multi-phase regulator |
| 06/16/2005 | US20050128003 Transistor assembly |
| 06/16/2005 | US20050128002 Output circuit |
| 06/16/2005 | US20050128001 Methods for extracting the mean (common mode) voltage of two input signals |
| 06/16/2005 | US20050128000 Ultra fast, low noise voltage feedback operational amplifier with dynamic biasing |
| 06/16/2005 | US20050127999 Low distortion and high slew rate output stage for voltage feedback amplifier |
| 06/16/2005 | US20050127998 Operational amplifier and driver circuit using the same |
| 06/16/2005 | US20050127997 Adjusting methods of arithmetic multiplying circuit, drive circuit, and phase margin |
| 06/16/2005 | US20050127992 Power control and modulation of switched-mode power amplifiers with one or more stages |
| 06/16/2005 | US20050127991 Volume control in class D amplifier using variable supply voltage |
| 06/16/2005 | US20050127990 Method and circuit for reduced settling time in an amplifier |
| 06/16/2005 | US20050127988 Current source apparatus, light-emitting-device apparatus and digital-analog converting apparatus |
| 06/16/2005 | DE10351593A1 Integrierte Vorverstärkerschaltung für die Erfassung eines Signalstroms von einer Photodiode Integrated preamplifier for detecting a signal current of a photodiode |
| 06/16/2005 | DE10350337A1 Booster circuit for signals in dynamic circuit integrated circuits links to a first signaling wire (SW) with a first signal and to a second signal connection linked to a SW carrying a second signal |
| 06/15/2005 | EP1542357A1 A power amplifier module and a time division multiple access radio |
| 06/15/2005 | EP1540816A1 Improved 2-stage large bandwidth amplifier using diodes in the parallel feedback structure |
| 06/15/2005 | EP1540815A1 Composite power amplifier |
| 06/15/2005 | EP1540565A2 Switched capacitor system, method, and use |
| 06/15/2005 | CN2704969Y Weak signal programmable controlling amplifiers |
| 06/15/2005 | CN1627741A Coherent averaging for measuring traveling wave tube amplifier nonlinearity |
| 06/15/2005 | CN1627669A Optical receiver and data communication apparatus comprising same |
| 06/15/2005 | CN1627633A Device and method for analyzing power gain and dissipation in multistage radio frequency amplifier |
| 06/15/2005 | CN1627632A Power amplifier protector of double-frequency portable terminal and its protection method |
| 06/15/2005 | CN1627223A Current drive circuit reducing VDS dependency |
| 06/15/2005 | CN1206805C Variable gain amplifier and filter circuit |
| 06/14/2005 | US6906591 Amplifier having MOS capacitor compensation |
| 06/14/2005 | US6906590 FET amplifier with temperature-compensating circuit |
| 06/14/2005 | US6906589 Multistaged amplification circuit |
| 06/14/2005 | US6906587 Current controlled bridge amplifier |
| 06/14/2005 | US6906586 Differential amplifier circuit used in solid-state image pickup apparatus, and arrangement that avoids influence of variations of integrated circuits in manufacture and the like |