| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 04/06/2006 | WO2006035754A1 Receiving apparatus and electronic device using the same |
| 04/06/2006 | US20060072657 Pulse width-modulated noise shaper |
| 04/06/2006 | US20060071712 Variable gain amplifier |
| 04/06/2006 | US20060071709 Switched-capacitor circuits with reduced finite-gain effect |
| 04/06/2006 | US20060071697 Pwm generator |
| 04/06/2006 | US20060071654 Activation signal output circuit and determining circuit |
| 04/06/2006 | US20060071296 RF passive circuit and RF amplifier with via-holes |
| 04/06/2006 | DE19720019B4 Linearer Leistungsverstärker sowie Verfahren zur linearen Leistungsverstärkung Linear power amplifier and method for linear power amplification |
| 04/06/2006 | DE19624092B4 Verstärkungsschaltung, vorzugsweise für analoge oder digitale Hörgeräte sowie Hörgeräte unter Verwendung einer entsprechenden Verstärkungsschaltung bzw. eines entsprechenden Signalverarbeitungs-Algorithmus Amplification circuit, preferably for analog or digital hearing aid as well as hearing aids using a corresponding amplifying circuit or a corresponding signal processing algorithm |
| 04/06/2006 | DE102004047497A1 Leistungsverstärkereinheit, mobiles Telekommunikationsendgerät und zugehöriges Betriebsverfahren Power amplifier unit, mobile telecommunication terminal and operating method thereof |
| 04/06/2006 | DE102004046349A1 Logarithmiererschaltung und hochlineare Differenzverstärkerschaltung Logarithmiererschaltung and highly linear differential amplifier circuit |
| 04/06/2006 | DE102004045709A1 Verfahren zur Einstelllung eines Verstärkers und entsprechende Verstärkerschaltung Method for Einstelllung an amplifier and corresponding amplifier circuit |
| 04/06/2006 | DE102004044558A1 Gunn-Diode Gunn diode |
| 04/05/2006 | EP1642387A1 Method of establishing a pwm-modulated output signal representation |
| 04/05/2006 | EP1642384A2 Integrated power amplifier circuit |
| 04/05/2006 | EP1547241B1 Dc-compensation loop for variable gain amplifier |
| 04/05/2006 | EP1127408B1 Variable gain amplifier with improved linearity |
| 04/05/2006 | CN2770258Y Hand-held telephone system base station amplifier |
| 04/05/2006 | CN2770233Y Bidirectional amplifier for hand-held telephone system |
| 04/05/2006 | CN2770223Y Offset correct circuit and electronic sound volume apparatus |
| 04/05/2006 | CN1757157A Voltage buffer for capacitive loads |
| 04/05/2006 | CN1757156A Amplification device |
| 04/05/2006 | CN1249938C Electric field intensity detecting circuit and limiter amplifier |
| 04/05/2006 | CN1249918C RF gain varying amplifying device |
| 04/05/2006 | CN1249917C Current reflective mirror circuit |
| 04/05/2006 | CN1249916C Power amplifier containing distributed capacitance |
| 04/05/2006 | CN1249915C TV signal switching circuit |
| 04/05/2006 | CN1249914C Amplifier circuit device with output voltage changed dueto input voltage quickly and accurately |
| 04/05/2006 | CN1249912C High-efficiency modulating RF amplifier |
| 04/04/2006 | US7024448 Multiplier |
| 04/04/2006 | US7024231 Booster system in a cellular phone base station |
| 04/04/2006 | US7023281 Stably-biased cascode networks |
| 04/04/2006 | US7023280 Transimpedance amplifier |
| 04/04/2006 | US7023279 Linear pre-amplifier for radio-frequency power amplifier |
| 04/04/2006 | US7023277 Method and system for minimizing differential amplifier power supply sensitivity |
| 04/04/2006 | US7023276 Differential amplifier circuit |
| 04/04/2006 | US7023275 Variable gain amplifier |
| 04/04/2006 | US7023273 Architecture and implementation methods of digital predistortion circuitry |
| 04/04/2006 | US7023272 Multi-band low noise amplifier system |
| 04/04/2006 | US7023270 High efficiency power amplifier |
| 04/04/2006 | US7023269 Digital amplifier and methods for enhancing resolution and dynamic range of a digital amplifier |
| 04/04/2006 | US7023268 Systems and methods for automatically adjusting channel timing |
| 04/04/2006 | US7023267 Switching power amplifier using a frequency translating delta sigma modulator |
| 04/04/2006 | US7023266 Device and method for nullifying offset voltages in operational amplifiers |
| 04/04/2006 | US7023263 Low pass filter |
| 04/04/2006 | US7023253 Apparatus and method for noise sensitivity improvement to a switching system |
| 04/04/2006 | US7023243 Current source evaluation sense-amplifier |
| 04/04/2006 | US7022967 Photodetector with plural switched feedback resistors |
| 03/30/2006 | WO2006034371A2 Low voltage operational transconductance amplifier circuits |
| 03/30/2006 | WO2006034174A2 A linear transconductance cell with wide tuning range |
| 03/30/2006 | WO2006033303A1 Eer high frequency amplifier |
| 03/30/2006 | WO2006033256A1 Distortion compensating amplifier apparatus |
| 03/30/2006 | WO2006033240A1 Audio power amplifier ic and audio system provided with the same |
| 03/30/2006 | WO2006033026A1 A transmitter and a method of operating a transmitter |
| 03/30/2006 | WO2005124996A3 Dvd reading apparatus |
| 03/30/2006 | WO2005119907A3 General-purpose wideband amplifier |
| 03/30/2006 | US20060068726 Transmitter and radio communication terminal using the same |
| 03/30/2006 | US20060066412 AC coupling technique for improved noise performance and simple biasing |
| 03/30/2006 | US20060066411 Power amplifier for a transmitter |
| 03/30/2006 | US20060066410 Low noise amplifier and related method |
| 03/30/2006 | US20060066409 Integrated direct drive inductor means enabled headphone amplifier |
| 03/30/2006 | US20060066408 Base current compensation circuit for a bipolar junction transistor |
| 03/30/2006 | US20060066407 Amplification gain stages having replica stages for DC bias control |
| 03/30/2006 | US20060066406 High frequency power amplifier |
| 03/30/2006 | US20060066405 Robust monolithic automatic bias circuit with current setting apparatus |
| 03/30/2006 | US20060066401 Method for setting an amplifier, and corresponding amplifier circuit |
| 03/30/2006 | US20060066400 Differential amplifier with cascode control |
| 03/30/2006 | US20060066399 Amplifier arrangement having an adjustable gain, and use thereof |
| 03/30/2006 | US20060066395 Variable gain amplifier with direct current offset correction |
| 03/30/2006 | US20060066362 Voltage-current conversion circuit, amplifier, mixer circuit, and mobile appliance using the circuit |
| 03/30/2006 | US20060066361 Apparatus and method for voltage conversion |
| 03/30/2006 | US20060066360 Switched operation amplifier |
| 03/30/2006 | DE4228833B4 Signalverarbeitungsschaltung Signal processing circuit |
| 03/30/2006 | DE10211932B9 Schaltungsanordnung zum Auslesen, Bewerten und Wiedereinlesen eines Ladungszustandes in eine Speicherzelle Circuitry for reading, evaluating and re-reading a charge state in a memory cell |
| 03/30/2006 | DE102005006806A1 Verfahren und Vorrichtung zum Messen von physikalischer Grössen mit piezoelektrischen Sensoren Method and apparatus for measuring physical quantities with piezoelectric sensors |
| 03/30/2006 | CA2663936A1 A linear transconductance cell with wide tuning range |
| 03/30/2006 | CA2580234A1 A linear transconductance cell with wide tuning range |
| 03/29/2006 | EP1641117A2 Power amplifier for a transmitter |
| 03/29/2006 | EP1639704A1 Apparatus, system and method for receiver equalization |
| 03/29/2006 | EP1639702A1 Self-oscillating power circuit |
| 03/29/2006 | EP1639701A2 Low voltage circuit for interfacing with high voltage analog signals |
| 03/29/2006 | EP1639700A1 Cartesian loop transmitter and method of adjusting an output level of such transmitter |
| 03/29/2006 | EP1639699A1 Output power detection circuit |
| 03/29/2006 | EP1639698A1 Apparatus, amplifier, system and method for receiver equalization |
| 03/29/2006 | EP1639693A1 Dead time control in a switching circuit |
| 03/29/2006 | EP1638457A1 Amplifier system for determining parameters of a patient |
| 03/29/2006 | EP1352468B1 Power amplifier (pa) with increased dynamics and efficiency |
| 03/29/2006 | CN1754312A A method and a device for adjusting power amplifier properties |
| 03/29/2006 | CN1754311A Integrated amplifier arrangement |
| 03/29/2006 | CN1753303A Differential amplifier with cascode control |
| 03/29/2006 | CN1753302A Power amplifier for a transmitter |
| 03/29/2006 | CN1753300A Method of preventing power amplifier from leakage after power drop and power amplifier |
| 03/29/2006 | CN1248522C Transmitter |
| 03/29/2006 | CN1248409C Differential output driving device |
| 03/29/2006 | CN1248408C Driver for external FET with high accuracy and gate voltage protection |
| 03/29/2006 | CN1248407C Switching amplifier and signal amplifying method |
| 03/29/2006 | CN1248397C Half-bridge gate driver circuit |
| 03/28/2006 | US7019923 Pre-amplifier employing transistors having a diminished breakdown voltage and a disk drive and a Thevenin writer employing the same |
| 03/28/2006 | US7019720 Adaptive control boost current method and apparatus |
| 03/28/2006 | US7019719 Method and clamping apparatus for securing a minimum reference voltage in a video display boost regulator |