| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 08/17/2006 | WO2006085585A1 Transmission modulation apparatus, communication device, and mobile wireless unit |
| 08/17/2006 | WO2006085566A1 Power amplifying circuit and test apparatus |
| 08/17/2006 | WO2006085239A1 Receiver comprising an amplifier |
| 08/17/2006 | WO2006085238A1 Receiver comprising an amplifier |
| 08/17/2006 | WO2005060112A3 Method and architecture for dual-mode linear and saturated power amplifier operation |
| 08/17/2006 | WO2004023645A3 Thermal feedback for switch mode amplification |
| 08/17/2006 | US20060183449 Gain variable voltage/current conversion circuit and filter circuit using the same |
| 08/17/2006 | US20060181438 Pwm digital amplifier with high-order loop filter |
| 08/17/2006 | US20060181350 Slew rate enhancement circuitry for folded cascode amplifier |
| 08/17/2006 | US20060181349 CMOS variable gain amplifier for controlling dB linear gain |
| 08/17/2006 | US20060181348 Peaking transmission line receiver for logic signals |
| 08/17/2006 | US20060181347 Delay circuit and method therefor |
| 08/17/2006 | US20060181346 Constant frequency self-oscillating amplifier |
| 08/17/2006 | US20060181344 Multiple signal intermodulation reduction system |
| 08/17/2006 | US20060181342 Digital amplifier |
| 08/17/2006 | US20060181341 Pwm digital amplifier with high-order loop filter |
| 08/16/2006 | EP1690336A1 Input/output signals preserver circuit of amplification circuits |
| 08/16/2006 | EP1351379B1 High-frequency semiconductor device |
| 08/16/2006 | EP1171950B1 System and method for converting from single-ended to differential signals |
| 08/16/2006 | EP1092221B1 A read channel with programmable bandwidth control |
| 08/16/2006 | CN1820413A Circuit for varying gain of preamplifier |
| 08/16/2006 | CN1820412A Absorptive microwave single pole single throw switch |
| 08/16/2006 | CN1820411A Systematic offset free operational amplifier and apparatus comprising such an operational amplifier |
| 08/16/2006 | CN1820410A Integrated power amplifier circuit |
| 08/16/2006 | CN1820409A Integrated power amplifier circuit |
| 08/16/2006 | CN1820408A Amplifier impedance matching |
| 08/16/2006 | CN1819717A Three-level magnetic pole lound speaker and its playing and controlling circuit |
| 08/16/2006 | CN1819716A Lound speaker with double magnetic pole and moving coil and its playing and controlling circuit |
| 08/16/2006 | CN1819715A Lound speaker with double-magnetic pole and moving coil, its playing and controlling circuit for cell-phone |
| 08/16/2006 | CN1819714A Lound speaker with double magnetic pole and moving coil, its playing and controlling circuit for radio communication apparatus |
| 08/16/2006 | CN1819713A High-acoustics lounderspeaker with electromagnetic energy converting into acoustic energy effectively, its playing and controlling circuit for mobile communication apparatus |
| 08/16/2006 | CN1819712A Electroacoustic double-magnetic pole and moving coil loundspeaker with high conversion rate and acoustics, its playing andcontrolling circuit thereof |
| 08/16/2006 | CN1819711A Hollow magnetic-core loundspeaker with internal magnetic pole and voice coil, its power-driven and controlling circuit |
| 08/16/2006 | CN1819454A Electronic circuit device |
| 08/16/2006 | CN1819449A Microwave monolithic superwide band amplifier |
| 08/16/2006 | CN1270381C Current compensation circuit for light leakage and light signal circuit using said circuit |
| 08/15/2006 | US7092691 Switchless multi-resonant, multi-band power amplifier |
| 08/15/2006 | US7092538 Switched microphone buffer |
| 08/15/2006 | US7092533 BTL amplifier apparatus |
| 08/15/2006 | US7092269 Phase to amplitude H-Bridge switching circuit |
| 08/15/2006 | US7091893 Loudspeaker control circuit |
| 08/15/2006 | US7091794 Method to reduce unwanted oscillations in high speed, high gain or transimpedance amplifiers |
| 08/15/2006 | US7091793 Variable decision threshold apparatus |
| 08/15/2006 | US7091792 Methods and apparatus for amplification in a tuner |
| 08/15/2006 | US7091791 Transformer implementation using bonding wires |
| 08/15/2006 | US7091790 Power amplifier (PA) efficiency with low current DC to DC converter |
| 08/15/2006 | US7091789 Output circuit |
| 08/15/2006 | US7091788 Biased Darlington transistor pair, method, and system |
| 08/15/2006 | US7091787 Transconductance amplifier with temperature sensitive current limiting |
| 08/15/2006 | US7091786 Linear-in-decibel variable gain amplifier |
| 08/15/2006 | US7091785 Load and line regulation using operational transconductance amplifier and operational amplifier in tandem |
| 08/15/2006 | US7091784 Tunable circuit including a switchable inductor |
| 08/15/2006 | US7091783 Rejection circuitry for variable-gain amplifiers and continuous-time filters |
| 08/15/2006 | US7091780 Method and apparatus for operating a transmission amplifier |
| 08/15/2006 | US7091778 Adaptive wideband digital amplifier for linearly modulated signal amplification and transmission |
| 08/15/2006 | US7091776 Power amplifier and radio communication device using the amplifier |
| 08/15/2006 | US7091775 Multi-band power amplifier module for wireless communication devices |
| 08/15/2006 | US7091774 Method and apparatus for combining multiple signals for high efficiency applications |
| 08/15/2006 | US7091772 Power amplification by using different fixed power supply signals for the amplifier |
| 08/15/2006 | US7091771 Segmented chopping amplifier |
| 08/10/2006 | WO2006083200A1 Electrical circuit |
| 08/10/2006 | WO2006082894A1 Transmitter and radio communication device |
| 08/10/2006 | WO2006039510A3 Continuous-time digital amplifier |
| 08/10/2006 | WO2005101678A3 Method and apparatus for dynamically adjusting a transmitter's impedance and implementing a hybrid power amplifier therein which selectively connects linear and switch-mode power amplifiers in series |
| 08/10/2006 | US20060178121 Method and a device for adjusting power amplifier properties |
| 08/10/2006 | US20060178119 Variable bandwidth envelope modulator for use with envelope elimination and restoration transmitter architecture and method |
| 08/10/2006 | US20060176252 Output circuit for gray scale control, testing apparatus thereof, and method for testing output circuit for gray scale control |
| 08/10/2006 | US20060176117 Semiconductor integrated circuit apparatus |
| 08/10/2006 | US20060176116 Distributed amplifier topologies with improved gain bandwidth product |
| 08/10/2006 | US20060176114 Broadband microwave amplifier |
| 08/10/2006 | US20060176113 Feed forward amplifier employing positive feedback pilot generation with automatic level control |
| 08/10/2006 | US20060175540 Capacitance type physical quantity sensor |
| 08/10/2006 | US20060175537 Imaging apparatus using saturation signal and photoelectric conversion signal to form image |
| 08/10/2006 | DE19716878B4 AGC-Spannungskorrekturschaltung AGC voltage correction circuit |
| 08/10/2006 | DE19508027B4 Integrierte Schaltung Integrated circuit |
| 08/10/2006 | DE10244167B4 Verstärkungsvorrichtung Amplifying device |
| 08/10/2006 | DE10056877B4 Empfängerempfindlichkeit Receiver sensitivity |
| 08/09/2006 | EP1689075A1 Multi-stage amplifier to reduce pop noise |
| 08/09/2006 | EP1687901A2 Delta-sigma digital-to-analog converter assembly |
| 08/09/2006 | EP1687894A1 Modified polar amplifier architecture |
| 08/09/2006 | EP1620943A4 N-way rf power amplifier circuit with increased back-off capability and power added efficiency using selected phase lengths and output impedances |
| 08/09/2006 | EP1620325A4 N-way rf power amplifier circuit with increased back-off capability and power added efficiency using unequal input power division |
| 08/09/2006 | EP1470635B1 Composite power amplifier |
| 08/09/2006 | EP1389899B1 Portable power amplifier |
| 08/09/2006 | EP0968569B1 Power interface circuit for a tdma transmitter |
| 08/09/2006 | EP0934632B1 A method and an arrangement for adapting, from a dc point of view, a first circuit to at least one second circuit |
| 08/09/2006 | EP0909044B1 Optical receiver |
| 08/09/2006 | CN2805261Y Power enhancement system used for digital TV common-frequency retransmission |
| 08/09/2006 | CN2805221Y Amplifier |
| 08/09/2006 | CN1816965A Large gain-bandwidth amplifier, method, and system |
| 08/09/2006 | CN1269316C Transmission circuit |
| 08/08/2006 | US7088975 Automatic gain control system and method using multiple local AGC loops |
| 08/08/2006 | US7088971 Integrated RF front end |
| 08/08/2006 | US7088970 Amplification apparatus, systems, and methods |
| 08/08/2006 | US7088969 Highly linear power amplifier and radio applications thereof |
| 08/08/2006 | US7088968 Method and polar-loop transmitter with origin offset for zero-crossing signals |
| 08/08/2006 | US7088927 Optical receiving apparatus and method |
| 08/08/2006 | US7088789 Apparatus for providing a multi-mode interface between a baseband receiver and radio frequency circuitry |
| 08/08/2006 | US7088433 Self reference type distance measuring method and distance measuring apparatus using an optical pulse |
| 08/08/2006 | US7088393 Output-compensated buffers with source-follower input structure, methods of operating same, and image capture devices using same |