| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
|---|
| 05/08/2008 | US20080106332 Switching Low Noise Amplifier |
| 05/08/2008 | US20080106331 Switching Low Noise Amplifier |
| 05/08/2008 | US20080106298 MOS linear region impedance curvature correction |
| 05/07/2008 | EP1917730A2 Method and apparatus for control of transmitter power consumption |
| 05/07/2008 | EP1714384A4 Adaptive bias current circuit and method for amplifiers |
| 05/07/2008 | EP1665519A4 Method and apparatus providing integrated load matching using adaptive power amplifier compensation |
| 05/07/2008 | EP1632023A4 Low distortsion class-d amplifier using carrier reference signal symmetry modulation |
| 05/07/2008 | CN201057635Y Linear amplifier |
| 05/07/2008 | CN101176215A Drive circuit for supplying, based on control signal, current to load, and mobile information terminal incorporating the same |
| 05/07/2008 | CN101176149A Signal processing system for tonal noise robustness |
| 05/07/2008 | CN101175393A Cooling device and method for acoustics equipment |
| 05/07/2008 | CN101174826A Power electronic switching circuit and its method for controlling and switching dead time |
| 05/07/2008 | CN101174824A Silencing circuit for start-up and close-down |
| 05/07/2008 | CN101174820A Matching circuit and multiband amplifier |
| 05/07/2008 | CN101174816A Digital predistortion linearized processing equipment and power detecting method thereof |
| 05/07/2008 | CN101174507A Low-loss adjustable ferroelectric device and its characterization method |
| 05/07/2008 | CN101174390A Drift compensation signal generating devices and methods for peak clipper |
| 05/06/2008 | US7369871 System and method for allowing a TDMA/CDMA portable transceiver to operate with closed loop power control |
| 05/06/2008 | US7368997 Signal amplifier and integrated circuit |
| 05/06/2008 | US7368995 Power amplifier with active bias circuit |
| 05/06/2008 | US7368992 Load-invariant amplifier |
| 05/06/2008 | US7368987 Circuit configuration having a feedback operational amplifier |
| 05/06/2008 | US7368983 Operational amplifier and method for canceling offset voltage of operational amplifier |
| 05/06/2008 | US7368982 Balanced output circuit and electronic apparatus utilizing the same |
| 05/06/2008 | US7368981 Limit circuit |
| 05/02/2008 | WO2008051149A1 Antenna device and portable radio communication device comprising such antenna device |
| 05/02/2008 | WO2008051127A1 Switched modulation of a radio-frequency amplifier |
| 05/02/2008 | WO2008050833A1 Transmission method and transmission device |
| 05/02/2008 | WO2008050267A2 Power amplifier |
| 05/02/2008 | WO2008050182A1 Envelope detector, linearization circuit, amplifier circuit, method for detecting a modulation envelope and wireless communication unit |
| 05/02/2008 | WO2008008777A3 Amplifier employing interleaved signals for pwm ripple suppression |
| 05/01/2008 | US20080100379 Sensor interface circuitry having adjustable gain and Q, and method for adjusting sensor interface circuitry gain and Q |
| 04/30/2008 | EP1916765A2 Method and system for minimizing power consumption in a communicaion system |
| 04/30/2008 | EP1916759A1 Dc/dc converter and power amplifier to which the same has been applied |
| 04/30/2008 | DE112006001593T5 Temperaturkompensierter, mit MMICs integrierter Spannungsregler Temperature compensated, integrated with MMICs voltage regulator |
| 04/30/2008 | DE112006001444T5 Gegenkopplungsschaltung und Verfahren und Vorrichtung zur Realisierung von Impedanzanpassung auf dem Chip für eine Übertragungsleitung mittels derselben Negative feedback circuit and method and apparatus for realizing impedance matching on the chip for a transmission line by means of the same |
| 04/30/2008 | CN201054565Y Amplification circuit for digital multi-media sound box |
| 04/30/2008 | CN101170298A Bias circuit |
| 04/30/2008 | CN101170297A Calculation amplifier with wide work voltage scope in band gap circuit |
| 04/30/2008 | CN100385792C Off-centre compensation circuit and off-centre compensation method |
| 04/29/2008 | US7366252 Wideband enhanced digital injection predistortion system and method |
| 04/29/2008 | US7365715 Electronic circuit, electronic device and personal computer |
| 04/29/2008 | US7365603 FET amplifier, pulse modulation module, and radar device |
| 04/29/2008 | US7365599 Glitch-free controllable RF power amplifier |
| 04/29/2008 | US7365597 Switched capacitor amplifier with higher gain and improved closed-loop gain accuracy |
| 04/24/2008 | WO2008048771A2 Pulsed load modulation amplifier and method |
| 04/24/2008 | WO2008047693A1 Low noise amplifier |
| 04/24/2008 | WO2008047445A1 Transmission device |
| 04/24/2008 | WO2008047403A1 Polar modulation device and wireless communication device |
| 04/24/2008 | WO2007146691A3 System and method for providing a transmitter for polar modulation and power amplifier linearization |
| 04/24/2008 | WO2007106337A3 Enhanced efficiency feed forward power amplifier with delay mismatched error cancellation loop |
| 04/24/2008 | WO2003092153A3 Rf power amplifier employing bias circuit topologies for minimization of rf amplifier memory effects |
| 04/24/2008 | US20080096497 Adaptive predistortion for a transmit system |
| 04/24/2008 | US20080095266 Adaptive controller for linearization of transmitter with impairments |
| 04/24/2008 | US20080094139 Power amplifier with distortion compensation circuit |
| 04/24/2008 | US20080094137 Power control and modulation of switched-mode power amplifiers with one or more stages |
| 04/24/2008 | US20080094136 Amplifier circuit and method of generating bias voltage in amplifier circuit |
| 04/24/2008 | US20080094135 Dc offset mitigation in a single-supply amplifier |
| 04/23/2008 | EP1914886A1 Multi-band power amplifier |
| 04/23/2008 | EP1914885A1 Power amplifier having distortion compensating circuit |
| 04/23/2008 | EP1914884A1 Delay regulating device |
| 04/23/2008 | EP1914883A2 Analog signal transmission circuit |
| 04/23/2008 | CN101167243A Polar coordinate modulating circuit, integrated circuit and radio apparatus |
| 04/23/2008 | CN101166015A Circuit and method of reducing pop-up noise in a digital amplifier |
| 04/23/2008 | CN101166013A Differential amplifier using body-source cross coupling |
| 04/23/2008 | CN100384085C Power amplifier driver system for wireless handset |
| 04/22/2008 | US7363200 Apparatus and method for isolating noise effects in a signal |
| 04/22/2008 | US7362871 Audio amplifier circuit and audio IC having the same |
| 04/22/2008 | US7362839 Techniques to adjust vertical offset |
| 04/22/2008 | US7362196 Temperature compensation attenuator |
| 04/22/2008 | US7362181 Procedure for operating a high frequency amplifier |
| 04/22/2008 | US7362180 Protection circuit of digital amplifier |
| 04/22/2008 | US7362175 Low-consumption voltage amplifier |
| 04/22/2008 | US7362173 System and method for providing slew rate enhancement for two stage CMOS amplifiers |
| 04/22/2008 | US7362172 Variable gain circuit |
| 04/22/2008 | US7362171 High-frequency amplifier |
| 04/22/2008 | US7362169 Power efficient amplifier |
| 04/17/2008 | WO2008045527A2 Video surveillance system and method |
| 04/17/2008 | WO2008044750A1 Low-noise amplifier |
| 04/17/2008 | WO2008044284A1 Polar modulation apparatus and radio transmitting apparatus |
| 04/17/2008 | WO2008044276A1 Electric power amplifying apparatus |
| 04/17/2008 | WO2008044268A1 Transmitter apparatus and transmitting method |
| 04/17/2008 | WO2008043881A1 Method, clipper module, and transmitter |
| 04/17/2008 | US20080091759 method of computing partial crcs |
| 04/17/2008 | US20080091374 Analog High Sensitivity Continuous Phase and Amplitude Detection Device for a Harmonic Microcantilever Sensor |
| 04/17/2008 | US20080088368 Offset voltage correction for high gain amplifier |
| 04/16/2008 | EP1912328A1 Highly efficient amplifier |
| 04/16/2008 | EP1912080A2 Automotive radar systems and techniques |
| 04/16/2008 | EP1911154A1 Amplifier with active post-distortion linearization |
| 04/16/2008 | EP1911153A1 Rf transmitter with compensation of differential path delay |
| 04/16/2008 | EP1911152A1 Power supply control for a amplifier in wireless modem devices |
| 04/16/2008 | EP1598943B1 Transmission device and adjustment method thereof |
| 04/16/2008 | CN101164231A Receiver having a gain-controllable input stage |
| 04/16/2008 | CN101164226A Synchronized temperature protection for class-ab amplifiers |
| 04/16/2008 | CN100382429C Integratable, voltage-controlled RF power amplifier |
| 04/15/2008 | US7359838 Method of processing a noisy sound signal and device for implementing said method |
| 04/15/2008 | US7359683 Predistorter for use in a wireless transmitter |
| 04/15/2008 | US7359682 Apparatus and method for improving efficiency of power amplifier operating under large peak-to-average power ratio |
| 04/15/2008 | US7359136 TMR/GMR amplifier with input current compensation |
| 04/15/2008 | US7358946 Offset cancel circuit of voltage follower equipped with operational amplifier |