| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 05/06/2004 | US20040085823 Configurable amplifier array incorporating programmable EHF transmission lines |
| 05/06/2004 | US20040085663 Method and apparatus for providing quadrature biasing for coupled-pair circuits |
| 05/06/2004 | US20040085152 Arrangement and method impedance matching |
| 05/06/2004 | US20040085145 Dynamically tuned amplifier for frequency shift keyed signals |
| 05/06/2004 | US20040085138 Electrically tuned integrated amplifier for wireless communications |
| 05/06/2004 | US20040085137 Preamplifier for two terminal electret condenser microphones |
| 05/06/2004 | US20040085135 Circuit and a method for controlling the bias current in a switched capacitor circuit |
| 05/06/2004 | US20040085134 Efficiency enhancement for MMIC amplifiers |
| 05/06/2004 | US20040085133 Multi-stage amplifier |
| 05/06/2004 | US20040085132 RF transistor amplifier linearity using suppressed third order transconductance |
| 05/06/2004 | US20040085131 Power transistor array temperature control system |
| 05/06/2004 | US20040085130 Simple self-biased cascode amplifier circuit |
| 05/06/2004 | US20040085127 Power amplifying method, power amplifier, and communication apparatus |
| 05/06/2004 | US20040085126 Accurate power detection for a multi-stage amplifier |
| 05/06/2004 | US20040085122 Method and system for minimizing differential amplifier power supply sensitivity |
| 05/06/2004 | US20040085115 Source-follower circuit having low-loss output statge portion and drive device for liquid-display display device |
| 05/06/2004 | US20040085098 Level determination circuit determining logic level of input signal |
| 05/06/2004 | US20040085097 Dual differential comparator circuit with full range of input swing |
| 05/06/2004 | US20040085089 One-level zero-current-state exclusive or (XOR) gate |
| 05/06/2004 | US20040085086 Predictive control boost current method and apparatus |
| 05/06/2004 | US20040083755 Thermal receptacle with phase change material |
| 05/06/2004 | EP1416628A1 Amplification systems and methods using feedback loop |
| 05/06/2004 | EP1415394A2 Communications signal amplifiers having independent power control and amplitude modulation |
| 05/06/2004 | EP1415392A2 Open loop variable gain amplifier using replica gain cell |
| 05/06/2004 | EP1269630B1 Current-controlled cmos circuits with inductive broadbanding |
| 05/06/2004 | EP1095462B1 Method for elaborating a transmission signal and transmitter with amplifying cells for implementing same |
| 05/06/2004 | DE10347293A1 Klasse D-Verstärker Class D amplifier |
| 05/06/2004 | DE10252594B3 Transistorschaltung Transistor circuit |
| 05/06/2004 | DE10213045B4 Integrierter optischer Faser-Empfänger Built-in optical fiber receiver |
| 05/05/2004 | CN1494763A Automatic gain control circuit with high linearity and monotonically correlated offset voltage |
| 05/05/2004 | CN1494762A Audio reproducing apparatus and method |
| 05/05/2004 | CN1494741A Arrangement and method for impedance matching |
| 05/05/2004 | CN1494241A Linear low noise amplifying device of time division duplex system |
| 05/05/2004 | CN1494209A Amlifying circuit and power apparatus with the same |
| 05/05/2004 | CN1494208A Low working voltage definite current circuit |
| 05/05/2004 | CN1148870C Parallel-stage power amplifier and its method for amplifying signal |
| 05/05/2004 | CN1148723C Arrangement comprising a magnetic write head, and write amplifier with capacitive feed forward compensation |
| 05/04/2004 | US6731918 Signal strength detecting device with little temperature dependence |
| 05/04/2004 | US6731916 Power amplifying apparatus for mobile phone |
| 05/04/2004 | US6731174 Radio frequency power amplifier device |
| 05/04/2004 | US6731171 Power amplifier module with stable idling current |
| 05/04/2004 | US6731169 Differential amplifier circuit |
| 05/04/2004 | US6731167 High frequency power amplifier module and wireless communication apparatus |
| 05/04/2004 | US6731166 Power amplifier system with multiple primary windings |
| 05/04/2004 | US6731165 Electronic amplifier |
| 05/04/2004 | US6731164 Capacitor current multiplier capacitive feedback circuit |
| 05/04/2004 | US6731163 Miller de-compensation for differential input, differential output amplifier |
| 05/04/2004 | US6731162 Multi-channel digital amplifier for shifting phases of PWM signals |
| 05/04/2004 | US6731161 Method for measuring the frequency response of a transimpedance amplifier packaged with an integrated limiter |
| 05/04/2004 | US6730945 Semiconductor device |
| 04/29/2004 | WO2004036741A1 Frequency compensation of common-mode feedback loops for differential amplifiers |
| 04/29/2004 | WO2004036739A2 Continuous bias circuit and method for an amplifier |
| 04/29/2004 | WO2004006427A3 Wide dynamic range operational amplifier |
| 04/29/2004 | WO2004004114A3 System and method for protecting an audio amplifier output stage power transistor |
| 04/29/2004 | WO2003096032A9 Current source evaluation sense-amplifier |
| 04/29/2004 | WO2003077414A8 Power amplifier |
| 04/29/2004 | WO2003063345A3 Dual gain amplification low noise amplifier |
| 04/29/2004 | US20040082354 System and method for boosting signals in a cellular phone base station |
| 04/29/2004 | US20040081252 Digital RF transmitter |
| 04/29/2004 | US20040080810 Power management for spatial power combiners |
| 04/29/2004 | US20040080371 Method of increasing output current capability of negative feedback amplifiers with output current limiting and freedom from thermal runaway |
| 04/29/2004 | US20040080370 Power management for active loop, spatially-combined amplifiers |
| 04/29/2004 | US20040080369 Low voltage differential in differential out receiver |
| 04/29/2004 | US20040080368 Low voltage, low power differential receiver |
| 04/29/2004 | US20040080367 Low power low voltage differential signal receiver with improved skew and jitter performance |
| 04/29/2004 | US20040080365 Method and apparatus for common-mode level shifting |
| 04/29/2004 | DE202004000607U1 Isolation amplifier for radio system has combinations of amplification and damping elements in series with amplifying element gain matched to damping element damping factor for minimal forward damping |
| 04/28/2004 | EP1414148A1 Power amplifier for radio frequency transmission systems |
| 04/28/2004 | EP1413054A1 Auxiliary circuitry for monolithic microwave integrated circuit |
| 04/28/2004 | EP1413053A2 Power amplifier system having frequency and amplifier failure compensation |
| 04/28/2004 | EP1413051A1 A transmitter with a sliding compression point |
| 04/28/2004 | EP1138115B1 Amplitude modulation to phase modulation cancellation method in an rf amplifier |
| 04/28/2004 | EP0799459B1 Electro-optical sensor |
| 04/28/2004 | CN1493107A Stability enhanced multistage power amplifier |
| 04/28/2004 | CN1493106A Amplication systems and methods usnig fixed and modulated power supply voltages and buck-boost control |
| 04/28/2004 | CN1492579A Electronic circuit of switch power amplifier and method for switching said amplifier output stage |
| 04/28/2004 | CN1492578A Heat protective system of amplifier output stage |
| 04/27/2004 | US6728650 High power amplifier operating point determination apparatus and method for satellite communications system |
| 04/27/2004 | US6727835 Analog multiplex level shifter with reset |
| 04/27/2004 | US6727786 Band switchable filter |
| 04/27/2004 | US6727762 Direct coupled distributed amplifier |
| 04/27/2004 | US6727761 Resonant bypassed base ballast circuit |
| 04/27/2004 | US6727760 Output power control system |
| 04/27/2004 | US6727758 Fast cascaded class AB bipolar output stage |
| 04/27/2004 | US6727757 Biasing circuit for transconductors |
| 04/27/2004 | US6727755 High speed linear variable gain amplifier architecture |
| 04/27/2004 | US6727754 RF power detector |
| 04/27/2004 | US6727753 Operational transconductance amplifier for an output buffer |
| 04/27/2004 | US6727752 Modulation scheme for switching amplifiers to reduce filtering requirements and crossover distortion |
| 04/27/2004 | US6727748 Highly efficient constant transconductance power amplifier |
| 04/27/2004 | US6727747 Method for reusing resource for designing operational amplifier, layout generating apparatus, and layout generating program |
| 04/27/2004 | US6727746 Radio frequency amplifier and television tuner |
| 04/27/2004 | US6727729 Linear buffer |
| 04/27/2004 | US6727651 Traveling wave tube |
| 04/22/2004 | WO2004034667A2 Electromagnetic wave trasmitter systems, methods and articles of manufacture |
| 04/22/2004 | WO2004034603A2 Transmitter and methods of transmission using separate phase and amplitude modulators |
| 04/22/2004 | WO2004034577A1 Digital audio amplifier including phase lead-lag compensator for increasing self-oscillation frequency |
| 04/22/2004 | WO2004034576A1 Differential amplifier and calculation amplifier |
| 04/22/2004 | WO2004034575A1 Semiconductor device |
| 04/22/2004 | WO2004034573A1 Method for the adaptive pre-distortion of digital raw data values and device for carrying out said method |