| 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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| 08/24/2005 | EP1566932A2 Adaptive equalizer with DC offset compensation |
| 08/24/2005 | EP1566892A1 Communication terminal |
| 08/24/2005 | EP1566886A2 Power amplification apparatus, and mobile communication terminal apparatus |
| 08/24/2005 | EP1566885A2 Adaptive equalizer with DC offset compensation |
| 08/24/2005 | EP1566758A1 Implementing data quality using rule bases and knowledge engineering |
| 08/24/2005 | CN2720724Y Dynamic negative-feedback audio-frequency power amplifier |
| 08/24/2005 | CN1658604A Adaptive equalizer with DC offset compensation |
| 08/24/2005 | CN1658603A Adaptive equalizer with DC offset compensation |
| 08/24/2005 | CN1658497A Method and apparatus for improving power amplifier efficiency in wireless communication systems |
| 08/24/2005 | CN1658496A Power amplification apparatus, and mobile communication terminal apparatus |
| 08/24/2005 | CN1216457C Power amplifier circuit |
| 08/23/2005 | US6934341 Method and apparatus for plurality signal generation |
| 08/23/2005 | US6933787 Linearized darlington amplifier |
| 08/23/2005 | US6933786 Amplifier circuit and method |
| 08/23/2005 | US6933781 Large gain-bandwidth amplifier, method, and system |
| 08/23/2005 | US6933780 Predistortion circuit and power amplifier |
| 08/23/2005 | US6933779 Variable gain low noise amplifier |
| 08/18/2005 | WO2005076664A1 Output stage for a hearing aid and method of driving output stage |
| 08/18/2005 | WO2005076495A1 Methods of enhancing power amplifier linearity |
| 08/18/2005 | WO2005076467A1 Power amplifier unit, communication terminal and control method of power amplifier unit |
| 08/18/2005 | WO2005076466A1 Digital microphone |
| 08/18/2005 | WO2005076465A1 Cascode cmos rf power amplifier with isolated trnasistors |
| 08/18/2005 | WO2005076023A1 Test equipment |
| 08/18/2005 | WO2005060672A9 Gate control circuit with soft start/stop function |
| 08/18/2005 | US20050182739 Implementing data quality using rule based and knowledge engineering |
| 08/18/2005 | US20050181753 Logic low noise amplifier and amplification control method thereof |
| 08/18/2005 | US20050181751 Power amplifier arrangement having an antenna, and a method for amplification and emission of a signal |
| 08/18/2005 | US20050181749 Method and apparatus for compensating phase errors in a base station system |
| 08/18/2005 | US20050180527 Digital predistorter using power series model |
| 08/18/2005 | US20050180526 Predistortion apparatus and method for compensating for a nonlinear distortion characteristic of a power amplifier using a look-up table |
| 08/18/2005 | US20050179582 Radar detection method and apparatus |
| 08/18/2005 | US20050179509 Amplifier circuit, gyrator circuit, filter device and method for amplifying a signal |
| 08/18/2005 | US20050179500 transistor is a PMOSFET having a source coupled to a high supply voltage, and the second transistor is an NMOSFET having a source coupled to a low supply voltage; coupled to form an inverter within the feed-back amplifier; biased from connections to the main cascode amplifier for smaller chip area |
| 08/18/2005 | US20050179496 Operational amplifier |
| 08/18/2005 | US20050179492 Memory component with improved noise insensitivity |
| 08/18/2005 | US20050179489 Power supply rejection for pulse width modulated amplifiers and automatic gain control |
| 08/18/2005 | US20050179488 Operational amplifier with selectable performance characteristics |
| 08/18/2005 | US20050179481 A-ab transconductor |
| 08/18/2005 | DE102004002007A1 Transistoranordnung mit Temperaturkompensation und Verfahren zur Temperaturkompensation Transistor arrangement with temperature compensation and method for temperature compensation |
| 08/18/2005 | CA2496851A1 Implementing data quality using rule bases and knowledge engineering |
| 08/17/2005 | EP1564910A2 Timing adjustment for wireless communication |
| 08/17/2005 | EP1564897A1 Control of a power amplifier for reducing power consumption in a transceiver |
| 08/17/2005 | EP1563620A2 Lower complexity layered modulation signal processor |
| 08/17/2005 | EP1563600A1 Systems and methods of dynamic bias switching for radio frequency power amplifiers |
| 08/17/2005 | EP1518335A4 Method for tuning an envelope tracking amplification system |
| 08/17/2005 | EP1483830B1 Amplifier circuits and their use in radio frequency transmitters |
| 08/17/2005 | EP1256165B1 Low-voltage transconductance amplifier/filters |
| 08/17/2005 | EP1142104B1 Multi-frequency transmitter using predistortion and a method of transmitting |
| 08/17/2005 | CN1656839A System for allocating channels to calls via updatable priorities |
| 08/17/2005 | CN1656673A Fast cascaded class ab output stage with fet devices |
| 08/17/2005 | CN1656672A Power amplifiers |
| 08/17/2005 | CN1655355A Semiconductor integrated circuit |
| 08/17/2005 | CN1215727C Feedforward amplifier with double loop |
| 08/16/2005 | US6931363 EDR direction estimating method, system, and program, and memory medium for storing the program |
| 08/16/2005 | US6931240 System and method for eliminating signal zero crossings in single and multiple channel communication systems |
| 08/16/2005 | US6931080 Multiple stage and/or nested predistortion system and method |
| 08/16/2005 | US6930557 Multi-stage amplifier |
| 08/16/2005 | US6930555 Amplifier power control circuit |
| 08/16/2005 | US6930554 Variable gain low noise amplifier and method |
| 08/16/2005 | US6930547 Linearizing LINC amplifiers using pre-distortion |
| 08/16/2005 | US6930546 Bypass switch topology for low-noise amplifiers |
| 08/12/2005 | WO2005117253A1 Pulse width modulator system |
| 08/11/2005 | WO2005074128A1 Variable gain circuit |
| 08/11/2005 | WO2005074125A1 Amplifier predistortion and autocalibration method and apparatus |
| 08/11/2005 | WO2005074124A1 Adjusting circuit |
| 08/11/2005 | WO2005074123A1 Electronic circuit |
| 08/11/2005 | WO2005074121A1 Transmitter predistortion circuit and method therefor |
| 08/11/2005 | WO2005072331A2 Equalized signal path with predictive subtraction signal |
| 08/11/2005 | WO2005031965A3 Stacked rf power amplifier |
| 08/11/2005 | WO2005017956B1 Temperature-insensitive bias circuit for high-power amplifiers |
| 08/11/2005 | WO2005008883A3 Digital predistortion system and method for correcting memory effects within an rf power amplifier |
| 08/11/2005 | US20050177349 Apparatus and method for isolating noise effects in a signal |
| 08/11/2005 | US20050176399 Field effect transistor amplifier with linearization |
| 08/11/2005 | US20050174178 Power amplifier module |
| 08/11/2005 | US20050174177 High-frequency integrated circuit device having high efficiency at the time of low power output |
| 08/11/2005 | US20050174175 Amplifying circuit with adjustable amplification and transmitter system comprising such an amplifying circuit |
| 08/11/2005 | US20050174173 Forward amplifiers |
| 08/11/2005 | US20050174172 Differential or single-ended amplifier and relative control method |
| 08/11/2005 | US20050174171 Multistage common mode feedback for improved linearity line drivers |
| 08/11/2005 | US20050174167 Method and apparatus providing cancellation of second order intermodulation distortion and enhancement of second order intercept point (IIP2) in common source and common emitter transconductance circuits |
| 08/11/2005 | US20050174105 Testing apparatus |
| 08/11/2005 | US20050173190 Roofmates™ roofing accessories |
| 08/11/2005 | DE102004001668A1 Integral electronic amplifier temperature sensor for mobile phone base stations uses threshold comparators connected to digital and analogue inputs and sensor |
| 08/11/2005 | DE102004001660A1 Amplifier circuit e.g. for mobile telecommunications, has transformer primary connected to first- and second-terminals of transistor |
| 08/11/2005 | DE102004001236A1 Power amplifier arrangement with antennas e.g. for transmission paths in mobile RF appliances, has signal paths each coupled to input and each comprising amplifier |
| 08/11/2005 | DE102004001094A1 Power amplifier arrangement e.g. for RF transmission device and mobile RF appliance, includes signal paths coupled by control device for activating and deactivating amplifiers |
| 08/11/2005 | CA2553453A1 Amplifier predistortion and autocalibration method and apparatus |
| 08/10/2005 | EP1562286A2 Distortion compensating device and power amplifying device with distortion compensating function |
| 08/10/2005 | EP1562285A1 Multi-band predistorter using power series representation |
| 08/10/2005 | EP1562284A1 Bias circuit with threshold voltage change compensation and temperature change compensation |
| 08/10/2005 | EP1561291A1 Amplitude and phase matching for layered modulation reception |
| 08/10/2005 | CN1653703A System and method for eliminating signal zero crossings in single and multiple channel communication systems |
| 08/10/2005 | CN1653685A Signal amplifier and integrated circuit |
| 08/10/2005 | CN1653682A Method for producing a transmission signal |
| 08/10/2005 | CN1652578A Circuit for generating reference voltage |
| 08/10/2005 | CN1652467A A/D converter |
| 08/10/2005 | CN1652457A Vertical-type power metal oxide semiconductor device with excess current protective function |
| 08/10/2005 | CN1652456A Multi-band predistorter using power series representation |
| 08/10/2005 | CN1652455A Power controller for power amplifier of mobile communication terminal |
| 08/10/2005 | CN1214670C Amplifier with distortion compensation and radio communication base station using the same |