| 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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| 08/22/2006 | US7095988 Apparatus for linear transmitter with improved loop gain stabilization |
| 08/22/2006 | US7095862 Headphone amplifier |
| 08/22/2006 | US7095799 Systems and methods for providing baseband-derived predistortion to increase efficiency of transmitters |
| 08/22/2006 | US7095352 Analog-to-digital converter including a plurality of amplifier circuits |
| 08/22/2006 | US7095283 Supply circuit for power amplifier drivers |
| 08/22/2006 | US7095279 AC differential amplifier with reduced low corner frequency |
| 08/22/2006 | US7095278 Power amplifier arrangement and method for memory correction/linearization |
| 08/22/2006 | US7095277 Method and arrangement for a power amplifier |
| 08/22/2006 | US7095275 BTL amplifier capable of providing stability of offset compensation |
| 08/22/2006 | US7095256 Low-power wide dynamic range envelope detector system and method |
| 08/22/2006 | CA2404824C Dynamic bias for rf power amplifiers |
| 08/17/2006 | WO2004023645A3 Thermal feedback for switch mode amplification |
| 08/17/2006 | US20060181438 Pwm digital amplifier with high-order loop filter |
| 08/17/2006 | US20060181345 Adaptive predistortion for a transmit system |
| 08/17/2006 | US20060181343 Gain controlled amplifier and cascoded gain controlled amplifier based on the same |
| 08/17/2006 | US20060181341 Pwm digital amplifier with high-order loop filter |
| 08/17/2006 | US20060181329 Circuit arrangement and transistor control method |
| 08/17/2006 | DE102005006162B3 Sende-/Empfangseinrichtung mit einem eine einstellbare Vorverzerrung aufweisenden Polar-Modulator Transmitting / receiving device having an adjustable pre-emphasis polar modulator |
| 08/16/2006 | EP1690336A1 Input/output signals preserver circuit of amplification circuits |
| 08/16/2006 | EP1690335A1 A predistorter for use in a wireless transmitter |
| 08/16/2006 | EP1351379B1 High-frequency semiconductor device |
| 08/16/2006 | EP1171950B1 System and method for converting from single-ended to differential signals |
| 08/16/2006 | CN1820410A Integrated power amplifier circuit |
| 08/16/2006 | CN1820409A Integrated power amplifier circuit |
| 08/16/2006 | CN1820408A Amplifier impedance matching |
| 08/16/2006 | CN1819471A Emission/acceptance device of polarization modulator with alterable predistortion |
| 08/16/2006 | CN1819266A High voltage operating field effect transistor, bias circuit therefor and high voltage circuit thereof |
| 08/16/2006 | CN1270492C Device and method of pre-distorsion for compensating power amplifier |
| 08/16/2006 | CN1270437C Transient damping arrangement |
| 08/15/2006 | US7092853 Environmental noise monitoring system |
| 08/15/2006 | US7092833 Method and circuit for linearizing nonlinear curves |
| 08/15/2006 | US7092691 Switchless multi-resonant, multi-band power amplifier |
| 08/15/2006 | US7092538 Switched microphone buffer |
| 08/15/2006 | US7092533 BTL amplifier apparatus |
| 08/15/2006 | US7091794 Method to reduce unwanted oscillations in high speed, high gain or transimpedance amplifiers |
| 08/15/2006 | US7091790 Power amplifier (PA) efficiency with low current DC to DC converter |
| 08/15/2006 | US7091789 Output circuit |
| 08/15/2006 | US7091788 Biased Darlington transistor pair, method, and system |
| 08/15/2006 | US7091782 Radio apparatus comprising an amplifier for radio-frequency signals, amplifier for radio-frequency signals and method for amplifying such signals |
| 08/15/2006 | US7091781 Wideband feed forward linear power amplifier |
| 08/15/2006 | US7091780 Method and apparatus for operating a transmission amplifier |
| 08/15/2006 | US7091779 Non-linear modeling method |
| 08/15/2006 | US7091778 Adaptive wideband digital amplifier for linearly modulated signal amplification and transmission |
| 08/15/2006 | US7091777 Controller for an RF power amplifier |
| 08/15/2006 | US7091774 Method and apparatus for combining multiple signals for high efficiency applications |
| 08/15/2006 | US7091773 Limiting circuit with level limited feedback |
| 08/15/2006 | US7091772 Power amplification by using different fixed power supply signals for the amplifier |
| 08/15/2006 | US7091771 Segmented chopping amplifier |
| 08/15/2006 | US7091741 Input buffer capable of reducing input capacitance seen by input signal |
| 08/10/2006 | WO2006082894A1 Transmitter and radio communication device |
| 08/10/2006 | WO2006082681A1 Spectrum analysis method, distortion detection device, and distortion compensation amplification device |
| 08/10/2006 | US20060178121 Method and a device for adjusting power amplifier properties |
| 08/10/2006 | US20060176112 Variable gain amplifying apparatus and wireless communication apparatus |
| 08/10/2006 | US20060176111 Electronic device comprising audio mute control circuit |
| 08/10/2006 | US20060176110 Gain control amplifier |
| 08/10/2006 | US20060176109 Chopper chopper-stabilized instrumentation and operational amplifiers |
| 08/10/2006 | US20060176108 Frequency stabilization of chopper-stabilized amplifiers |
| 08/10/2006 | US20060176107 Amplifier, voltage stabilizing unit and method thereof |
| 08/10/2006 | DE19716878B4 AGC-Spannungskorrekturschaltung AGC voltage correction circuit |
| 08/10/2006 | DE19508027B4 Integrierte Schaltung Integrated circuit |
| 08/10/2006 | DE10244167B4 Verstärkungsvorrichtung Amplifying device |
| 08/09/2006 | EP1689076A1 Track and hold circuit to reduce pop noise |
| 08/09/2006 | EP1689075A1 Multi-stage amplifier to reduce pop noise |
| 08/09/2006 | EP1687894A1 Modified polar amplifier architecture |
| 08/09/2006 | EP1687893A1 Predistortion control device and method, assembly including a predistortion control device |
| 08/09/2006 | EP1620943A4 N-way rf power amplifier circuit with increased back-off capability and power added efficiency using selected phase lengths and output impedances |
| 08/09/2006 | EP1620325A4 N-way rf power amplifier circuit with increased back-off capability and power added efficiency using unequal input power division |
| 08/09/2006 | EP1550210B1 Capacitor coupled dynamic bias boosting circuit for a power amplifier |
| 08/09/2006 | EP1470635B1 Composite power amplifier |
| 08/09/2006 | EP1389899B1 Portable power amplifier |
| 08/09/2006 | EP1309464B1 Safe distance algorithm for adaptive cruise control |
| 08/09/2006 | EP0968569B1 Power interface circuit for a tdma transmitter |
| 08/09/2006 | EP0909044B1 Optical receiver |
| 08/09/2006 | CN1816965A Large gain-bandwidth amplifier, method, and system |
| 08/09/2006 | CN1269316C Transmission circuit |
| 08/08/2006 | US7088971 Integrated RF front end |
| 08/08/2006 | US7088968 Method and polar-loop transmitter with origin offset for zero-crossing signals |
| 08/08/2006 | US7088393 Output-compensated buffers with source-follower input structure, methods of operating same, and image capture devices using same |
| 08/08/2006 | US7088277 Analog-to-digital converter having cyclic configuration |
| 08/08/2006 | US7088183 Bias circuit |
| 08/08/2006 | US7088179 Single-ended input, differential output low noise amplifier |
| 08/08/2006 | US7088176 Method and arrangement relating to multicarrier power amplifiers |
| 08/08/2006 | US7088175 Low noise, electric field sensor |
| 08/08/2006 | US7088174 Offset cancellation and slice adjust amplifier circuit |
| 08/08/2006 | US7088149 Enhancing SNR and throughput performance of integrated circuits |
| 08/08/2006 | US7088082 Regulator with variable capacitor for stability compensation |
| 08/08/2006 | CA2221976C Dynamically compensated linear regulator for pulsed transmitters |
| 08/03/2006 | WO2006079969A1 Receiver having a gain-controllable input stage |
| 08/03/2006 | WO2006079941A1 Synchronized temperature protection for class-ab amplifiers |
| 08/03/2006 | WO2006079241A1 Predistortion device based on vector envelope injection and the method thereof |
| 08/03/2006 | US20060170502 Low noise amplifier for ultra wide band |
| 08/03/2006 | DE102005006717B3 Traveling-wave type amplifier with input network forming signal transmission line, has control connection of input amplifier connected to input network |
| 08/02/2006 | EP1686687A1 Apparatus for controlling transmission power in mobile communication terminal and method thereof |
| 08/02/2006 | EP1685647A1 Multiple polar amplifier architecture |
| 08/02/2006 | EP1685646A1 Variable supply amplifier system |
| 08/02/2006 | EP1456942B1 Time division multiplexed pwm amplifier |
| 08/02/2006 | CN2802844Y Automatic detection display device for voltage of power amplification electric net |
| 08/02/2006 | CN2802843Y Feedforward linear power amplification concellation control device using optimizing model adaptive algorithm |
| 08/02/2006 | CN1813402A Integrated power amplifier circuit |
| 08/02/2006 | CN1813401A Integrated power amplifier circuit |