Patents
Sitemap › H03 - Basic electronic circuitry › H03F - Amplifiers › H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272)
09/2012
09/05/2012CN101741327B Compensated operational amplification circuit and related method
09/05/2012CN101689836B Method for linearizing non-linear power amplifier and apparatus thereof
09/05/2012CN101610093B Predistortion device, predistortion system and predistortion method
09/05/2012CN101090256B High-impedance level-shifting device, system and method
09/04/2012US8259839 Method for avoiding interference radiation of AM transmitters used in digital transmission
09/04/2012US8258864 Ultra low voltage multi-stage high-speed CMOS comparator with autozeroing
09/04/2012US8258863 Circuit and method for reducing input leakage in chopped amplifier during overload conditions
08/2012
08/30/2012WO2012114867A1 Constant envelope signal generation circuit, and magnification circuit, transmission device, and communication device using same
08/30/2012WO2012114836A1 Transmitter, voltage control program and recording medium having voltage control program recorded thereon
08/30/2012WO2012114291A1 A system for measuring electrical charge
08/30/2012US20120218043 Amplifier Activation
08/30/2012US20120218036 Offset component cancelation method and circuit
08/30/2012DE102012202992A1 Gemeinsame adaptive arbeitspunkteinstellung und digitale vorverzerrung für leistungsverstärker Joint adaptive operating point setting and digital predistortion for power amplifiers
08/30/2012DE102009003582B4 Audio-Röhrenverstärker, Stereo- oder Multikanal-Verstärkeranordnungsowie Verfahren Audio tube amplifier, stereo or multi-channel amplifier arrangement well as process
08/30/2012DE102007011715B4 Verstärkeranordnung zum Verstärken eines Signals An amplifier arrangement for amplifying a signal
08/30/2012DE102006035817B4 Einrichtung und Verfahren zum dynamischen Anpassen der Teilung einer Look-up-Tabelle zum Linearisieren eines Leistungsverstärkers Apparatus and method for dynamically adjusting the division of a look-up table for linearizing a power amplifier
08/29/2012EP2493070A2 Voltage adaption unit and method of use thereof
08/29/2012EP2493069A1 Amplifier
08/29/2012EP2491649A1 Digitally controlled ac protection and attenuation circuit
08/29/2012EP2491648A1 Multimode power amplifier with predistortion
08/29/2012EP2182641B1 Electronic devices with calibrated radio frequency communications circuitry
08/29/2012CN102652392A Semiconductor integrated circuit and tuner system provided with same
08/29/2012CN102651635A Fully differential power current amplifier
08/29/2012CN102651634A Joint adaptive bias point adjustment and digital pre-distortion for power amplifier
08/29/2012CN102651633A Noise current feed-forward type noise cancellation circuit
08/29/2012CN102651334A Semiconductor device and method for manufacturing semiconductor device
08/29/2012CN102651315A Method of producing semiconductor device and semiconductor device
08/29/2012CN101546985B Amplifying element and manufacturing method thereof
08/28/2012US8253490 Wireless signal corrective pre-distortion using linearly interpolated filter coefficients derived from an amplifier sample set that is representative of amplifier nonlinearlity
08/28/2012US8253486 Wireless apparatus having shielding function
08/28/2012US8253485 Power amplifier
08/28/2012US8253446 Semiconductor device and electronic apparatus using the same
08/23/2012WO2012111583A1 Power series digital predistorter and control method thereof
08/23/2012WO2012111451A1 Method for stabilizing gain/distortion characteristics, and circuit
08/23/2012WO2012111100A1 Amplification device
08/23/2012WO2012110410A1 Control of cross-over point
08/23/2012WO2012110409A1 Power control
08/23/2012US20120212291 High Efficiency Amplification
08/22/2012EP2490330A2 Methods and Systems for Stabilizing an Amplifier
08/22/2012EP2490329A1 Power amplifier and method for operating same
08/22/2012EP2489122A2 Amplifier bias techniques
08/22/2012EP2141800B1 Distortion compensation controller and distortion compensation control method
08/22/2012CN202395729U Power amplifier
08/22/2012CN202395727U Current negative feedback control circuit
08/22/2012CN102647156A Low-distortion dynamic current boost amplifier and associated method
08/22/2012CN102647155A Variable gain amplifier
08/22/2012CN102645660A Sps receiver with adjustable linearity
08/22/2012CN101674056B Power amplifier linearization using RF feedback
08/22/2012CN101471631B Cmos audio operational amplifier
08/21/2012US8248160 Adaptive predistortion for a transmit system
08/21/2012US8248159 Model based distortion reduction for power amplifiers
08/21/2012US8248158 Chopper stabilized amplifier
08/16/2012WO2012109321A2 Reset and resettable circuits
08/16/2012WO2012109227A2 Group delay calibration method for power amplifier envelope tracking
08/16/2012US20120206208 Wide band lna with noise canceling
08/16/2012US20120206199 Method and apparatus to linearize transconductors by predistortion
08/15/2012EP2487790A1 Papr (peak-to-average power ratio) determining apparatus and communication apparatus
08/15/2012EP2487789A2 Offset cancellation in a capacitively coupled amplifier
08/15/2012EP2486651A1 Pulse width modulation for a switching amplifier
08/15/2012EP2022138B1 System and method for saturation detection, correction and recovery in a polar transmitter
08/15/2012EP1946442B1 Wideband circuits and methods
08/15/2012EP1358715B1 Method for energy-saving operation of a mobile radio telephone device and mobile radio telephone device
08/15/2012CN202385059U Two-level operation amplifying and compensating circuit
08/15/2012CN202385058U Circuit structure for realizing dead time self-adaptive control in D-type power amplifier
08/15/2012CN202385056U Dead time-free circuit structure of digital audio power amplifier
08/15/2012CN202385055U Power amplifier
08/15/2012CN102640416A Gain recovery in a bipolar transistor
08/15/2012CN102640415A Multimode power amplifier with predistortion
08/15/2012CN102640414A Mixing circuit
08/15/2012CN102638438A Am-pm synchronization unit
08/15/2012CN102638231A Method for designing fully-customized chip for detection of high-speed weak photoelectric signals
08/15/2012CN102638230A Temperature compensation device and satellite signal receiving system
08/15/2012CN102638229A Audio amplification circuit
08/15/2012CN101589548B Chopper-stabilized instrumentation amplifier and method for impedance measurement
08/15/2012CN101136614B Constant current circuit
08/14/2012US8244503 Quantitative measurements of system complexity
08/14/2012US8242855 Multi-primary distributed active transformer amplifier power supply and control
08/14/2012US8242840 Capacitive sensor
08/14/2012US8242838 Amplifier with wide gain range
08/09/2012WO2012106437A1 Fast envelope system calibration
08/09/2012WO2012104038A1 Integrated circuit, wireless communication unit and method for providing a power supply
08/09/2012US20120201330 Method and system for transmitting signals with reduced spurious emissions
08/09/2012US20120200359 Amplifier arrangement
08/09/2012US20120200356 Enhanced transformer output demultiplexing method (etodem)
08/09/2012US20120200355 Digital predistortion of a power amplifier for signals comprising widely spaced carriers
08/09/2012US20120200352 Apparatus and method for an integrated multi-mode multi-band power amplifier
08/09/2012US20120200351 Offset correction circuit
08/09/2012US20120200350 Reset and resettable circuits
08/09/2012DE112010003734T5 Verstärkungsrückgewinnung in einem bipolaren Transistor Strengthening recovery in a bipolar transistor
08/09/2012DE102005058464B4 Doherty-Mikrowellenverstärker und Signalverarbeitungsverfahren für diesen Doherty microwave amplifier and signal processing technology for this
08/08/2012EP2485448A1 Mobile wireless communications device with separate in-phase (i) and quadrature (q) phase power amplification and power amplifier pre-distortion and iq balance compensation
08/08/2012EP2485392A1 Amplifying unit, power amplifier and transmitter
08/08/2012EP2485391A1 Power amplifier and method for amplifying signals based on the same
08/08/2012CN202374468U Integrated power amplifier for wireless access point
08/08/2012CN202374226U Layout structure of chips of medium power class D audio amplifiers
08/08/2012CN202374224U Variable gain self-adaption bias power amplifier based on common-mode feedback
08/08/2012CN202374223U Fully digital audio amplification circuit for household active speakers
08/08/2012CN202374221U Clock amplification circuit for reducing introduction of phase noise
08/08/2012CN102629855A Noise suppression circuit and control method thereof
08/08/2012CN102629854A Integrated circuit, wireless communication unit and method for providing a power supply
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