| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 11/25/2004 | US20040232968 Dynamic method for limiting the reverse base-emitter voltage |
| 11/25/2004 | US20040232950 Voltage to current converter |
| 11/25/2004 | US20040232948 Charge recycling amplifier for a high dynamic range CMOS imager |
| 11/25/2004 | US20040232485 Semiconductor device |
| 11/25/2004 | DE10343567B3 Multi-stage difference amplifier has respective regulating loops for determining load of input stage and operating point of common-mode feedback circuit between output and input stages |
| 11/25/2004 | DE102004022354A1 Schaltung und Verfahren zur Bereitstellung pulsweitenmodulierter Signale Circuit and method for providing pulse width modulated signals |
| 11/25/2004 | DE102004017497A1 Verstärkerschaltung Amplifier circuit |
| 11/24/2004 | EP1480345A2 Stable high-order delta-sigma error feedback modulators and noise transfer functions for use in such modulators |
| 11/24/2004 | EP1480343A1 Level shift circuit |
| 11/24/2004 | EP1480334A2 Method and apparatus for extending the size of a transistor beyond one integrated circuit |
| 11/24/2004 | EP1480333A2 High frequency differential amplifier, differential mixer, differential oscillator and radio circuit using same |
| 11/24/2004 | EP1480332A2 Integratable, voltage-controlled rf power amplifier |
| 11/24/2004 | EP1407543B1 Power-controlled transmitter arrangement |
| 11/24/2004 | EP1303909B1 Electronic circuit for converting a signal and amplifier incorporating same |
| 11/24/2004 | EP1153477A4 Linear and multi-sinh transconductance circuits |
| 11/24/2004 | EP1088391A4 Improved operational amplifier output stage |
| 11/24/2004 | CN2659025Y HBT power apmlifier linearizing apparatus |
| 11/24/2004 | CN1550063A Power amplifier having a cascode current-mirror self-bias boosting circuit |
| 11/24/2004 | CN1549636A Amplifier with multi-space structure |
| 11/24/2004 | CN1549445A Digital power amplification constant voltage outputting method |
| 11/24/2004 | CN1549444A Electric current audio-frequency power amplifier |
| 11/24/2004 | CN1177407C Audio-frequency power amplifier apparatus and method thereof |
| 11/23/2004 | US6822599 Integrated circuit and A/D conversion circuit |
| 11/23/2004 | US6822598 Multi-stage pipeline type analog-to-digital conversion circuit for adjusting input signals |
| 11/23/2004 | US6822518 Low noise amplifier |
| 11/23/2004 | US6822517 Power amplifier module |
| 11/23/2004 | US6822516 High speed high gain amplifier |
| 11/23/2004 | US6822514 Amplifier with miller-effect compensation for use in closed loop system such as low dropout voltage regulator |
| 11/23/2004 | US6822513 Symmetric and complementary differential amplifier |
| 11/23/2004 | US6822512 High gain amplifier with rail to rail range and frequency compensation |
| 11/23/2004 | US6822511 Integrated power amplifier circuit |
| 11/23/2004 | US6822509 Differential circuit with a linearity correction loop |
| 11/23/2004 | US6822505 Mobility compensation in MOS integrated circuits |
| 11/23/2004 | US6822501 Apparatus for correcting offset voltage |
| 11/23/2004 | US6822435 Comparator circuit for differential swing comparison and common-mode voltage comparison |
| 11/23/2004 | US6822434 Monolithic transformer compensated circuit |
| 11/18/2004 | WO2004100483A1 Polar modulation transmitter |
| 11/18/2004 | WO2004100360A1 Adaptor for adapting amplitudes of radio frequency signals |
| 11/18/2004 | WO2004100358A1 N-way rf power amplifier circuit with increased back-off capability and power added efficiency using selected phase lengths and output impedances |
| 11/18/2004 | WO2004100357A2 Large gain-bandwith amplifier |
| 11/18/2004 | WO2004100356A2 Global loop integrating modulator |
| 11/18/2004 | WO2004100215A2 N-way rf power amplifier circuit with increased back-off capability and power added efficiency using unequal input power division |
| 11/18/2004 | WO2004070770A3 Circuit arrangement and method for the accelerated switching over of an amplifier |
| 11/18/2004 | WO2004062088B1 Power amplifier circuit and method using bandlimited signal component estimates |
| 11/18/2004 | US20040229580 Direct conversion receiver with DC offset compensation and method thereof |
| 11/18/2004 | US20040229579 High frequency power amplifier component and radio communication system |
| 11/18/2004 | US20040229573 Amplification device with shared amplification stage for transmission and reception |
| 11/18/2004 | US20040228422 Digital convertible radio SNR optimization |
| 11/18/2004 | US20040228416 Delta-sigma amplifiers with output stage supply voltage variation compensations and methods and digital amplifier systems using the same |
| 11/18/2004 | US20040227577 Adaptive bias circuit for a power amplifier |
| 11/18/2004 | US20040227576 Equal phase multiple gain state amplifier |
| 11/18/2004 | US20040227575 Output stage using positive feedback to provide large current sourcing capability |
| 11/18/2004 | US20040227573 Active inductance circuit and differential amplifier circuit |
| 11/18/2004 | US20040227572 Input buffer circuit having function of canceling offset voltage |
| 11/18/2004 | US20040227571 Power amplifier circuit |
| 11/18/2004 | US20040227570 Optimization of error loops in distributed power amplifiers |
| 11/18/2004 | US20040227568 Digital switching power amplifier |
| 11/18/2004 | US20040227567 DC offset self-calibration system for a switching amplifier |
| 11/18/2004 | US20040227561 Method and apparatus for extending the size of a transistor beyond one integrated circuit |
| 11/18/2004 | US20040227554 Amplifier circuit with output delay selectively changed according to common mode voltage level, associated replica delay circuit and internal clock generator |
| 11/18/2004 | US20040227477 Differential current output unit |
| 11/18/2004 | DE10355326A1 Differential amplifier arrangement for use in testing applications with physical value sensors has a self-test input generating circuit, which permits independent self-testing of the amplifier operation |
| 11/18/2004 | DE10317968A1 Control method for an output signal in a voltage-current change device fed with a reference voltage alters an incoming voltage signal to a current signal |
| 11/18/2004 | CA2516302A1 N-way rf power amplifier circuit with increased back-off capability and power added efficiency using unequal input power division |
| 11/18/2004 | CA2516194A1 N-way rf power amplifier circuit with increased back-off capability and power added efficiency using selected phase lengths and output impedances |
| 11/17/2004 | EP1478088A2 Variable high power amplifier with constant overall gain for a satellite communication system |
| 11/17/2004 | EP1476949A1 Power amplification apparatus of portable terminal |
| 11/17/2004 | EP1476941A2 Current modulator with dynamic amplifier impedance compensation |
| 11/17/2004 | EP1476912A1 Switchable combiner and integrated combining apparatus for using it |
| 11/17/2004 | EP0925642B1 Device for amplifying signals |
| 11/16/2004 | US6819912 Variable frequency switching amplifier and method therefor |
| 11/16/2004 | US6819722 Offset control circuit, optical receiver using the same and optical communication system |
| 11/16/2004 | US6819194 Tunable voltage-controlled temperature-compensated crystal oscillator |
| 11/16/2004 | US6819184 RF transistor amplifier linearity using suppressed third order transconductance |
| 11/16/2004 | US6819182 High isolation/high speed buffer amplifier |
| 11/16/2004 | US6819181 Method and structure for integrated circuit interference isolation enhancement |
| 11/16/2004 | US6819179 Variable gain low noise amplifier |
| 11/16/2004 | US6819178 Selectable single mode or differential mode operation in a single amplifier |
| 11/16/2004 | US6819177 Electronic circuit for a switching power amplifier and method for switching the output stage of a switching power amplifier |
| 11/16/2004 | US6819172 DC offset cancellation techniques |
| 11/16/2004 | US6819171 Amplifier arrangement |
| 11/16/2004 | US6819170 Apparatus for sensing differential voltages with high common-mode levels |
| 11/16/2004 | US6819169 Isolation interface with capacitive barrier and method for transmitting a signal by means of such isolation interface |
| 11/16/2004 | US6819144 Latched sense amplifier with full range differential input voltage |
| 11/16/2004 | US6818879 Amplifier circuit for optical disk drive |
| 11/16/2004 | CA2330395C Power amplifier using upstream signal information |
| 11/11/2004 | WO2004098117A2 Distributed gain network |
| 11/11/2004 | WO2004098049A1 Circuit for improved differential amplifier and other applications |
| 11/11/2004 | WO2004098048A2 Differential amplifier with selectable gain |
| 11/11/2004 | WO2004098047A1 Current mode switch capacitor circuit |
| 11/11/2004 | WO2004098046A1 Class a amplifier |
| 11/11/2004 | WO2004098044A1 High speed high gain amplifier |
| 11/11/2004 | WO2004066540A3 Signal processing system with baseband noise modulation and noise fold back reduction |
| 11/11/2004 | US20040224649 Electronically tunable power amplifier tuner |
| 11/11/2004 | US20040224635 Variable high power amplifier with constant overall gain for a satellite communication system |
| 11/11/2004 | US20040223624 Audio amplifier circuit and audio IC having the same |
| 11/11/2004 | US20040222925 Inverted-F ferroelectric antenna |
| 11/11/2004 | US20040222855 Transimpedance amplifier |
| 11/11/2004 | US20040222854 High-frequency power amplifier |
| 11/11/2004 | US20040222852 Wideband constant-gain voltage amplifier |