| 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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| 02/28/2006 | US7005895 Driver circuit with frequency-dependent signal feedback |
| 02/28/2006 | US7005881 Current sensing for power MOSFET operable in linear and saturated regions |
| 02/28/2006 | US7005721 RF passive circuit and RF amplifier with via-holes |
| 02/23/2006 | WO2006019612A1 Estimating power amplifier non-linearity in accordance with memory depth |
| 02/23/2006 | WO2006019610A1 Performing remote power amplifier linearization |
| 02/23/2006 | WO2006018784A2 High accuracy power detector for handset applications |
| 02/23/2006 | WO2006018750A1 Dual mode audio amplifier |
| 02/23/2006 | US20060040625 Transmission power amplifier unit |
| 02/23/2006 | US20060040624 Peak power limitation in an amplifier pooling scenario |
| 02/23/2006 | US20060038617 Continuously variable gain radio frequency driver amplifier having linear in decibel gain control characteristics |
| 02/22/2006 | EP1628392A1 Amplification device |
| 02/22/2006 | EP0995261B1 Adaptive biasing in a power amplifier |
| 02/22/2006 | CN1739235A Doherty amplifier and its distortion characteristic compensation method |
| 02/22/2006 | CN1738193A Digital amplifier protection circuit |
| 02/22/2006 | CN1738192A Method and apparatus for control of predistortion linearizer based on power series |
| 02/22/2006 | CN1243409C Buffer circuit and driver IC |
| 02/22/2006 | CN1243408C Multistage amplifier and integrated circuit |
| 02/21/2006 | US7003273 Temperature compensating circuit, electronic apparatus and radio unit having temperature compensating function |
| 02/21/2006 | US7003051 Time delay estimation in a transmitter |
| 02/21/2006 | US7002507 Pipelined and cyclic analog-to-digital converters |
| 02/21/2006 | US7002413 Voltage amplification circuit |
| 02/21/2006 | US7002411 Amplifier with fixed input impedance operated in various gain modes |
| 02/21/2006 | US7002410 Adaptive linearization technique for communication building block |
| 02/21/2006 | US7002409 Compensation circuit for amplifiers having multiple stages |
| 02/21/2006 | US7002408 Data signal amplifier and processor with multiple signal gains for increased dynamic signal range |
| 02/21/2006 | US7002407 Delay mismatched feed forward amplifier system using penalties and floors for control |
| 02/21/2006 | US7002238 Use of a down-bond as a controlled inductor in integrated circuit applications |
| 02/21/2006 | US7001819 Semiconductor device and power amplifier using the same |
| 02/16/2006 | WO2006017815A2 Method and apparatus for automatically providing expert analysis-based advice |
| 02/16/2006 | WO2006016964A2 Digital transmitter system employing self-generating predistortion parameter lists and adaptive controller |
| 02/16/2006 | WO2006015663A1 Controller-assisted method and controller-assisted device for determining a characteristic of a compensation member in a level control circuit |
| 02/16/2006 | WO2005013477A3 Power distribution and biasing in rf switch-mode power amplifiers |
| 02/16/2006 | US20060033577 Amplifier circuit |
| 02/16/2006 | US20060033576 Amplifier circuit having an impedance-controllable bias-boosting circuit |
| 02/16/2006 | US20060033575 Variable-gain amplifier |
| 02/16/2006 | US20060033573 Amplifying circuit |
| 02/16/2006 | US20060033569 Method and apparatus for performing digital pre-distortion |
| 02/16/2006 | US20060033568 Predistortion linearizing |
| 02/16/2006 | US20060033567 Predistortion control apparatus |
| 02/16/2006 | US20060033562 MOSFET amplifier having feedback controlled transconductance |
| 02/16/2006 | US20060033561 Reducing Noise and/or Power Consumption in a Switched Capacitor Amplifier Sampling a Reference Voltage |
| 02/16/2006 | US20060033560 Variable time constant circuit and filter circuit using the same |
| 02/16/2006 | CA2573862A1 System and method for current-mode amplitude modulation |
| 02/15/2006 | EP1626508A1 Transmission output control circuit, and wireless device using the same |
| 02/15/2006 | EP1226594B1 Electrical circuit arrangement for converting an input voltage |
| 02/15/2006 | EP0850509B2 Linearized digital automatic gain control |
| 02/15/2006 | CN2759057Y Circuit for reducing operational amplifier misadjustment voltage temp drift |
| 02/15/2006 | CN1736021A 多赫蒂放大器 Doherty amplifier |
| 02/15/2006 | CN1242550C Amplifying circuit for limiting the output signal amplitude supplied to loudspeaker |
| 02/15/2006 | CN1242549C High linearity complementary metal oxid semiconductor transduction circuit |
| 02/15/2006 | CN1242548C Bandgap reference circuit and method |
| 02/14/2006 | US6999740 Semiconductor integrated circuit and radio communication apparatus using same |
| 02/14/2006 | US6999738 Device and method for pre-treating a signal to be transmitted using a non-linear amplifier with an upstream band-pass filter |
| 02/14/2006 | US6999523 Multi-frequency transmitter using predistortion and a method of transmitting |
| 02/14/2006 | US6998921 Method for avoiding avalanche breakdown caused by a lateral parasitic bipolar transistor in an MOS process |
| 02/14/2006 | US6998920 Monolithically fabricated HBT amplification stage with current limiting FET |
| 02/14/2006 | US6998919 Temperature compensated power amplifier power control |
| 02/14/2006 | US6998916 Feed forward amplifier system using penalties and floors for optimal control |
| 02/14/2006 | US6998914 Multiple polar amplifier architecture |
| 02/14/2006 | US6998913 Method and apparatus for linear low-frequency feedback in monolithic low-noise charge amplifiers |
| 02/14/2006 | US6998912 High-frequency composite switch module and mobile communication device using the same |
| 02/14/2006 | US6998911 Gate control circuit with soft start/stop function |
| 02/14/2006 | CA2431297C Switching amplification apparatus |
| 02/09/2006 | WO2006014465A2 Power amplifier utilizing high breakdown voltage circuit topology |
| 02/09/2006 | WO2006013019A1 Controllable power operational transconductance amplifier |
| 02/09/2006 | WO2006012784A1 Fet bias circuit |
| 02/09/2006 | US20060031182 Method and apparatus for automatically providing expert analysis-based advice |
| 02/09/2006 | US20060029213 Communication arrangement and transmission unit for information transfer over a transmission and a circuit arrangement for connection to the transmission unit |
| 02/09/2006 | US20060028280 Modulation dependent biasing for efficient and high linearity power amplifiers |
| 02/09/2006 | US20060028271 High efficiency amplification |
| 02/09/2006 | US20060028269 Power amplifier with switchable load |
| 02/08/2006 | EP1624598A1 Carrier to noise ratio estimations from a received signal |
| 02/08/2006 | EP1624564A1 Controllable power operational transconductance amplifier |
| 02/08/2006 | CN1732620A Power amplifier circuit and method using bandlimited signal component estimates |
| 02/08/2006 | CN1732619A Circuit for adjusting the operating point of multiple gate field effect transistors |
| 02/08/2006 | CN1731673A Method for realizing memory-type power amplifier linearization and its baseband predistortion device |
| 02/08/2006 | CN1241324C Feed forward amplifier and feed forward amplifying method |
| 02/08/2006 | CN1241323C Differential sampler structure of reducing distortion and current requirement |
| 02/07/2006 | US6996378 Transmitter |
| 02/07/2006 | US6996376 Antenna switch |
| 02/07/2006 | US6995737 Method and system for adjusting precharge for consistent exposure voltage |
| 02/07/2006 | US6995616 Power amplifier having cascode architecture with separately controlled MOS transistor and parasitic bipolar transistor |
| 02/07/2006 | US6995613 Power distribution and biasing in RF switch-mode power amplifiers |
| 02/07/2006 | US6995610 Amplifier and radio frequency tuner |
| 02/02/2006 | US20060022750 High frequency amplifier |
| 02/02/2006 | US20060022749 Method of preventing abrupt voltage changes at the outputs of a pair of amplifiers and control circuit for a pair of amplifiers self-configuring in a bridge configuration |
| 02/02/2006 | US20060022748 Variable gain amplifier circuit and radio machine |
| 02/02/2006 | US20060022747 Estimating the operating point on a non-linear traveling wave tube amplifier |
| 02/01/2006 | EP1622259A1 Source follower amplifier device and camera using the same |
| 02/01/2006 | EP1622258A2 Power amplifier apparatus and dc component removing method |
| 02/01/2006 | EP1622256A1 Power amplifier arrangement and method for memory correction/linearization |
| 02/01/2006 | EP1620943A1 N-way rf power amplifier circuit with increased back-off capability and power added efficiency using selected phase lengths and output impedances |
| 02/01/2006 | EP1620942A2 Rf amplifier employing active load linearization |
| 02/01/2006 | EP1620325A2 N-way rf power amplifier circuit with increased back-off capability and power added efficiency using unequal input power division |
| 02/01/2006 | EP1579573A4 Apparatus and method for safely handling asynchronous shutdown of pulsewidth modulated output |
| 02/01/2006 | CN1729637A A transmitter and a method of calibrating power in signals output from a transmitter |
| 02/01/2006 | CN1729619A Phase corrected miller compensation of chopper and nested chopper amplifiers |
| 02/01/2006 | CN1729618A Power amplifier for bias control |
| 02/01/2006 | CN1729617A Transmitter stage |
| 02/01/2006 | CN1728543A Injection circuit with external predistortion |