| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 09/20/2006 | CN1835393A Audio amplifier with high power and high efficiency |
| 09/20/2006 | CN1835392A Light receiving amplifier circuit and optical pickup device having the same |
| 09/19/2006 | US7110742 Low noise amplifier with constant input impedance |
| 09/19/2006 | US7110730 Apparatus for mobile communication system which performs signal transmission by amplitude modulation and phase modulation |
| 09/19/2006 | US7110555 Sound signal reproducing apparatus |
| 09/19/2006 | US7110165 Power management for spatial power combiners |
| 09/19/2006 | US7109845 Circuit arrangement for signal detection having current mirror with cascode coupled transistors |
| 09/19/2006 | US7109802 Bipolar differential to single ended transfer circuit with gain boost |
| 09/19/2006 | US7109801 Low gate oxide stress power amplifier |
| 09/19/2006 | US7109800 Bias circuit for providing a constant bias current to a power amplifier |
| 09/19/2006 | US7109799 Current-controlled CMOS wideband data amplifier circuits |
| 09/19/2006 | US7109798 Method and system for common mode feedback circuitry for RF buffers |
| 09/19/2006 | US7109797 Method and apparatus for measuring the common-mode component of a differential signal |
| 09/19/2006 | US7109796 Amplifying circuit with adjustable amplification and transmitter system comprising such an amplifying circuit |
| 09/19/2006 | US7109795 Amplifier-mixer device |
| 09/19/2006 | US7109794 Differential gain stage for low voltage supply |
| 09/19/2006 | US7109793 High frequency differential circuit, differential amplifier, differential mixer, differential oscillator, and radio circuit using same |
| 09/19/2006 | US7109790 High linearity doherty communication amplifier with integrated output matching unit |
| 09/19/2006 | US7109789 Modulator—amplifier |
| 09/19/2006 | US7109466 Peak and bottom detectors in burst mode optical receiver |
| 09/14/2006 | WO2006095479A1 High frequency device, high frequency module and communication apparatus |
| 09/14/2006 | WO2006095416A1 High frequency amplifier with attenuator |
| 09/14/2006 | WO2006095296A1 Receiver having a gain-controllable input amplifier. |
| 09/14/2006 | WO2006095051A1 Measurement circuit and method for measuring the level of an rf signal, and a transmitter including a measurement circuit |
| 09/14/2006 | WO2006014501B1 Parallel amplifier configuration with power combining and impedance transformation |
| 09/14/2006 | US20060202766 Transimpedance amplifier with signal amplification circuit that performs power signal regulation |
| 09/14/2006 | US20060202765 Construction and use of preamps having discrete gain states |
| 09/14/2006 | US20060202764 Bias circuit |
| 09/14/2006 | US20060202763 Current mirror circuit |
| 09/14/2006 | US20060202762 Input amplifier with improved power supply rejection |
| 09/14/2006 | US20060202761 Amplifier unit and optical disc drive |
| 09/14/2006 | US20060202760 Controllable amplifier and the use thereof |
| 09/14/2006 | US20060202759 Transistor biasing independent of inductor voltage drop |
| 09/14/2006 | US20060202758 Amplifier with increased bandwidth and method thereof |
| 09/14/2006 | US20060202755 Gigabit ethernet transceiver with analog front end |
| 09/14/2006 | US20060202753 Differential driver circuit |
| 09/14/2006 | US20060202749 Mpas |
| 09/14/2006 | DE10148238B4 Frequenzvervielfacherschaltung Frequency multiplier |
| 09/13/2006 | EP1700378A1 A switched capacitor circuit compensation apparatus and method |
| 09/13/2006 | EP1700375A1 Method and apparatus for effecting high-frequency amplification or oscillation |
| 09/13/2006 | EP1509998B1 Apparatus for detecting the envelope of rf power signals |
| 09/13/2006 | EP1269624B1 System and method of producing direct audio from a power supply |
| 09/13/2006 | CN2817213Y 音频功率放大器 Audio Power Amplifier |
| 09/13/2006 | CN1833367A Transmission device, transmission power control method, and radio communication device |
| 09/13/2006 | CN1833359A Amplifier with high output power dynamics |
| 09/13/2006 | CN1833358A Doherty amplifier with output mixing coupler |
| 09/13/2006 | CN1832372A Two-way amplifier of portable phone system |
| 09/13/2006 | CN1832338A Transimpedance amplifier with signal amplification circuit that performs power signal regulation |
| 09/13/2006 | CN1832337A Low distortion ternary state switching amplifier |
| 09/13/2006 | CN1832336A Method for optimizing radio-frequency power amplifier and radio-frequency power amplifier system |
| 09/13/2006 | CN1275384C Disadjust control of operational amplifier |
| 09/13/2006 | CN1275369C Drive circuit and method of operating semiconductor laser |
| 09/12/2006 | US7106606 Voltage-current converter with adjustable quiescent current |
| 09/12/2006 | US7106149 Switchable tuneable bandpass filter with optimized frequency response |
| 09/12/2006 | US7106139 Amplification circuit and oscillation circuit including inverter circuits having a same threshold voltage |
| 09/12/2006 | US7106136 Amplifier, data driver and display apparatus having the same |
| 09/12/2006 | US7106135 Amplifier system and method |
| 09/12/2006 | US7106134 Feed forward amplifier employing bias circuit topologies for minimization of RF amplifier memory effects |
| 09/12/2006 | US7106132 Feed-forward operational amplifiers and methods of using the same |
| 09/12/2006 | US7106131 Amplifying circuit |
| 09/12/2006 | US7106130 Variable frequency PWM controller circuit |
| 09/12/2006 | US7106124 Field emission RF amplifier |
| 09/12/2006 | US7106093 Semiconductor device |
| 09/12/2006 | US7105797 Optical receiving circuit |
| 09/08/2006 | WO2006093177A1 Dc amplifier and method for compensating for offset voltage thereof |
| 09/08/2006 | WO2006092940A1 Electric power amplifying apparatus |
| 09/08/2006 | WO2006092939A1 Power amplifying apparatus |
| 09/08/2006 | WO2006065462A3 A transmitter, a transceiver and a method of controlling a transmit power therefor |
| 09/07/2006 | US20060197601 Switching device for at least two voltages, corresponding electronic circuit and memory |
| 09/07/2006 | US20060197600 High frequency power amplifier circuit device |
| 09/07/2006 | US20060197598 Low voltage structure for gain boosting in high gain amplifiers |
| 09/07/2006 | US20060197597 Ultra low-frequency response, DC-blocked low-noise amplifier |
| 09/07/2006 | US20060197596 Audio amplifier with high power and high efficiency |
| 09/07/2006 | US20060197591 Device and method for enhancing output current driving |
| 09/07/2006 | US20060197590 Power amplifier and method for error correcting of output signals thereof |
| 09/07/2006 | US20060197589 Low-distortion tri-state switching amplifier |
| 09/07/2006 | US20060197561 Controller and loading system thereof |
| 09/07/2006 | DE102006009419A1 Pulsweitenmodulationsschaltung, Klasse-D-Audioverstärker und Pulsweitenmodulationsverfahren Pulse width modulation circuit, class-D audio amplifier and pulse width modulation method |
| 09/07/2006 | DE102004024875B4 Verstärkeranordnung und Verfahren zur Kompensation eines Signalanteils in einer Verstärkeranordnung Amplifier arrangement and method for compensating a signal component in an amplifier arrangement |
| 09/06/2006 | EP1698051A1 Radio frequency (rf) and/or microwave power amplification device and corresponding radio communication terminal |
| 09/06/2006 | EP1698050A2 Gate control circuit with soft start/stop function |
| 09/06/2006 | CN2814472Y FM receiver broad caster power amplification power supply signal control delayed action device |
| 09/06/2006 | CN1830140A Power distribution and biasing in RF switch-mode power amplifiers |
| 09/06/2006 | CN1830139A 可变增益放大器系统 Variable gain amplifier system |
| 09/06/2006 | CN1830138A Variable attenuation system having continuous input steering |
| 09/06/2006 | CN1830137A Temperature-insensitive bias circuit for high-power amplifiers |
| 09/06/2006 | CN1829080A Cross-talk reduction circuit and method therefor |
| 09/06/2006 | CN1829079A Electronics parts for high frequency power amplifier |
| 09/06/2006 | CN1274183C Transponder with a changeable circuit configuration |
| 09/06/2006 | CN1274177C Front-end module and communication terminal |
| 09/06/2006 | CN1274097C Method and apparatus for generating RF signal |
| 09/05/2006 | US7103189 Power supply noise immunity for audio amplifier |
| 09/05/2006 | US7103114 Modulated radio signal transmitter with self-adapted amplification polarization |
| 09/05/2006 | US7102654 Driving circuit |
| 09/05/2006 | US7102445 Power amplifier module |
| 09/05/2006 | US7102444 Method and apparatus for compensating and improving efficiency in a variable power amplifier |
| 09/05/2006 | US7102443 Temperature-stabilized amplifier circuit |
| 09/05/2006 | US7102440 High output current wideband output stage/buffer amplifier |
| 09/05/2006 | US7102439 Low voltage differential amplifier circuit and a sampled low power bias control technique enabling accommodation of an increased range of input levels |
| 09/05/2006 | US7102438 Autozeroing floating-gate amplifier |