| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
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| 05/03/2007 | WO2007025135A3 Method and apparatus for control of transmitter power consumption |
| 05/03/2007 | WO2006049800A3 Current limit circuit for power amplifiers |
| 05/03/2007 | WO2005104354A3 Low-complexity nonlinear filters |
| 05/03/2007 | US20070096832 High-bandwidth high-gain amplifier |
| 05/03/2007 | US20070096829 Output offset protection for power amplifier |
| 05/03/2007 | US20070096826 Methods and system of feedback in amplifier circuit |
| 05/03/2007 | US20070096825 Operational amplifier, integrating circuit, feedback amplifier, and controlling method of the feedback amplifier |
| 05/03/2007 | US20070096811 Predistortion control device and method, assembly including a predistortion control device |
| 05/03/2007 | US20070096808 Nested transimpendance amplifier |
| 05/03/2007 | US20070096807 Transconductance amplifiers with compensation |
| 05/03/2007 | US20070096805 Multiple power mode amplifier with bias modulation option and without bypass switches |
| 05/03/2007 | US20070096804 Transmitting output stage with adjustable output power and process for amplifying a signal in a transmitting output stage |
| 05/03/2007 | DE102006006875B3 Linear amplification arrangement for load-path HF signals, has voltage for non-linear amplifiers supplied from third amplifier for load-pass filter component of HF signal envelope |
| 05/03/2007 | DE102004014731B4 Mess-Schaltung für den Ausgang eines Leistungsverstärkers sowie ein die Mess-Schaltung umfassender Leistungsverstärker Measuring circuit for the output of a power amplifier and a measuring circuit comprehensive power amplifier |
| 05/02/2007 | EP1779536A1 A radio transmitter and a method of operating a radio transmitter |
| 05/02/2007 | EP1779508A1 Dual mode audio amplifier |
| 05/02/2007 | EP1779507A1 Methods and systems for stabilizing an amplifier |
| 05/02/2007 | EP1586161B1 Self adaptable bias circuit for enabling dynamic control of quiescent current in a linear power amplifier |
| 05/02/2007 | EP1532732B1 System and method for establishing the input impedance of an amplifier in a stacked configuration |
| 05/02/2007 | EP1354401B1 Circuits and methods for controlling transients during audio device power-up and power-down, and systems using the same |
| 05/02/2007 | EP1088393B1 Amplifier arrangement |
| 05/02/2007 | CN1957575A Fully digital transmitter including a digital band-pass sigma-delta modulator |
| 05/02/2007 | CN1957527A Differential stage voltage offset trim circuitry |
| 05/02/2007 | CN1957526A Amplifier linearization using non-linear predistortion |
| 05/02/2007 | CN1956523A Device and method for removing noise of TV set off |
| 05/02/2007 | CN1956319A High frequency power amplifier |
| 05/02/2007 | CN1314214C Receiving circuit for free-space optical communication |
| 05/02/2007 | CN1314198C RF power amplifier and method for improving efficiency thereof |
| 05/01/2007 | US7212791 Transmission device and delay time adjustment method thereof |
| 05/01/2007 | US7212584 Distortion compensator |
| 05/01/2007 | US7212388 Device protecting an electronic circuit |
| 05/01/2007 | US7212154 Apparatus for producing an amplified radio frequency pulse |
| 05/01/2007 | US7212071 Techniques to lower drive impedance and provide reduced DC offset |
| 05/01/2007 | US7212070 Circuit and method of reducing noise in an RF power amplifier |
| 05/01/2007 | US7212069 Power control and modulation of switched-mode power amplifiers with one or more stages |
| 04/26/2007 | WO2007046732A1 A transconductance stage arrangement |
| 04/26/2007 | WO2007046370A1 Non-linear distortion detection method and distortion compensation amplification device |
| 04/26/2007 | WO2007028001A3 Method and device for performing offset cancellation in an amplifier using floating-gate transistors |
| 04/26/2007 | WO2006056952A3 Current limiting circuit for rf power amplifier |
| 04/26/2007 | US20070091052 Output circuit, digital analog circuit and display device |
| 04/26/2007 | US20070090875 Feedback circuit for an operational amplifier, a current to voltage converter including such a circuit and a digital to analog converter including such a circuit |
| 04/26/2007 | US20070090873 Offset canceller for compensating for offset in signal output |
| 04/26/2007 | DE102004053031B4 Schaltungsanordnung mit einer Kurzschlußschutzschaltung Circuitry with a short-circuit protection circuit |
| 04/25/2007 | EP1777814A2 Methods and apparatus for switching between class A and A/B operation in a power amplifier |
| 04/25/2007 | EP1777813A1 Adaptive gain and/or phase adjustment control method |
| 04/25/2007 | EP1777812A1 Fet bias circuit |
| 04/25/2007 | EP1776783A1 Transimpedance amplifier with integrated filtering and reduced parasitic capacitance |
| 04/25/2007 | EP1776769A2 Digital transmitter system employing self-generating predistortion parameter lists and adaptive controller |
| 04/25/2007 | EP1776754A1 Method and system for linearizing the characteristic curve of a power amplifier |
| 04/25/2007 | EP1776753A1 System and method for current-mode amplitude modulation |
| 04/25/2007 | EP1323230B1 Switching power amplifier |
| 04/25/2007 | CN1954495A Method and apparatus having a digital PWM signal generator with integral noise shaping |
| 04/25/2007 | CN1954491A Adaptation of iq-error compensation |
| 04/25/2007 | CN1954490A Adaptive predistortion method and device |
| 04/25/2007 | CN1954489A Multi-band low noise amplifier system |
| 04/25/2007 | CN1954488A Monolithically integrated power amplifier device |
| 04/25/2007 | CN1312837C Equipment and method for eliminating detonation |
| 04/24/2007 | US7209718 Transmitter control circuit |
| 04/24/2007 | US7209715 Power amplifying method, power amplifier, and communication apparatus |
| 04/24/2007 | US7209524 Layered modulation for digital signals |
| 04/24/2007 | US7209002 Audio amplifier |
| 04/24/2007 | US7209001 Offset compensation circuit for a monitoring photodiode |
| 04/24/2007 | US7209000 Frequency stabilization of chopper-stabilized amplifiers |
| 04/24/2007 | US7208999 Step-down circuit with stabilized output voltage |
| 04/19/2007 | WO2007043122A1 Variable gain amplifier and its control method |
| 04/19/2007 | US20070087704 Predistorter for use in a wireless transmitter |
| 04/19/2007 | US20070085607 Electronic circuit for amplification of a bipolar signal |
| 04/19/2007 | US20070085603 Slew rate enhancement circuit via dynamic output stage for adjusting gamma curve |
| 04/19/2007 | US20070085602 High-efficiency mixed-mode power amplifier |
| 04/19/2007 | DE102005048409A1 Verstärkeranordnung für Ultra-Breitband-Anwendungen und Verfahren Amplifier arrangement for ultra-wideband applications and processes |
| 04/18/2007 | EP1775832A1 High-efficiency power amplifier |
| 04/18/2007 | EP1774687A1 System and method for digital timing error correction in a communications system utilizing adaptive predistortion |
| 04/18/2007 | EP1774649A1 High impedance circuit |
| 04/18/2007 | EP1119111B1 Isolator with built-in power amplifier |
| 04/18/2007 | CN1951002A Temperature-compensated circuit for power amplifier using diode voltage control |
| 04/18/2007 | CN1949662A Amplifier arrangement for ultra-wideband applications and method |
| 04/18/2007 | CN1311624C High-efficiency power modulators |
| 04/17/2007 | US7206553 Method and apparatus for impedance matching in an amplifier using lumped and distributed inductance |
| 04/17/2007 | US7206419 Guitar preamlifier system with controllable distortion |
| 04/17/2007 | US7206355 Digitally convertible radio |
| 04/17/2007 | US7206348 Twisted pair communications line system |
| 04/17/2007 | US7205843 Protection circuit for power amplifier |
| 04/17/2007 | US7205840 Wideband CMOS gain stage |
| 04/17/2007 | US7205834 Power amplifier |
| 04/17/2007 | US7205833 Method and circuit for reduced setting time in an amplifier |
| 04/17/2007 | US7205807 Cascode signal driver with low harmonic content |
| 04/17/2007 | US7205610 Source follower circuit or bootstrap circuit, driver circuit comprising such circuit, and display device comprising such driver circuit |
| 04/12/2007 | WO2007041231A2 Method and apparatus for removing or isolating voice or instruments on stereo recordings |
| 04/12/2007 | WO2007005150A3 System for reducing calibration time of a power amplifier |
| 04/12/2007 | WO2006113234A3 Adaptive predistortion linearized amplifier system employing selective sampling |
| 04/12/2007 | WO2006034497A8 Blind signal separation using i and q components |
| 04/12/2007 | US20070080749 Adaptive predistortion for a transmit system with gain, phase and delay adjustments |
| 04/12/2007 | US20070080747 Composite power amplifier |
| 04/12/2007 | US20070080746 Glitch-free controllable rf power amplifier |
| 04/12/2007 | US20070080736 Off-Chip LC Circuit for Lowest Ground and VDD Impedance for Power Amplifier |
| 04/12/2007 | DE102005047171A1 Schaltungsanordnung mit einem rückgekoppelten Operationsverstärker Circuit arrangement having a feedback operational amplifier |
| 04/12/2007 | DE102004024112B4 Schaltung zur Messung des Stromes durch einen Leistungs-MOSFET Circuit for measuring the current through a power MOSFET |
| 04/11/2007 | EP1771942A1 Controller-assisted method and controller-assisted device for determining a characteristic of a compensation member in a level control circuit |
| 04/11/2007 | EP1364459B1 Safety switch device |
| 04/11/2007 | EP1293035B1 Level shifter for switching power amplifier |