| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 02/05/2004 | US20040022538 High sensitivity, high resolution detection of signals |
| 02/05/2004 | US20040022324 Audio reproducing apparatus and method |
| 02/05/2004 | US20040022025 Equipment for communication system and semiconductor integrated circuit device |
| 02/05/2004 | US20040021999 Input protection circuit |
| 02/05/2004 | US20040021520 Operational amplifier |
| 02/05/2004 | US20040021519 Digitally controlled variable offset amplifier |
| 02/05/2004 | US20040021512 Class D amplifier |
| 02/05/2004 | US20040021511 Amplifier common-mode feedback systems for use with switched-capacitor structures |
| 02/05/2004 | US20040021508 System and method for activating gain stages in an amplification module |
| 02/05/2004 | US20040021492 Pulse width modulation circuit and illuminating device incorporating same |
| 02/05/2004 | US20040021491 Apparatus for increasing slew rate |
| 02/05/2004 | US20040021208 Semiconductor integrated circuit |
| 02/05/2004 | DE10333552A1 Leistungsverstärker mit hoher Wärmeableitung Power amplifier with high heat dissipation |
| 02/05/2004 | CA2494407A1 High sensitivity, high resolution detection of signals |
| 02/04/2004 | EP1387493A2 Input protection circuit |
| 02/04/2004 | EP1387492A2 Comparator with hysteresis |
| 02/04/2004 | EP1387489A1 Pulse width modulation circuit and illuminating device incorporating same |
| 02/04/2004 | EP1387486A2 Amplifier circuit and multistage amplifier circuit |
| 02/04/2004 | EP1386391A2 Photodetector preamplifier circuit having a rotating input stage |
| 02/04/2004 | EP1386390A2 High-frequency amplifier circuit with independent control of quiescent current and bias impedance |
| 02/04/2004 | CN1473451A Portable multi-channel amplifier |
| 02/04/2004 | CN1473395A System for closed loop power control using linear or non-linear power amplifier |
| 02/04/2004 | CN1472883A Method and device for conveniently fixing power push-pull amplifiers |
| 02/04/2004 | CN1137517C Semiconductor device |
| 02/03/2004 | US6686875 Bi-directional amplifier module for insertion between microwave transmission channels |
| 02/03/2004 | US6686804 Frequency synthesizer using a VCO having a controllable operating point, and calibration and tuning thereof |
| 02/03/2004 | US6686801 Power amplifier with distributed capacitor |
| 02/03/2004 | US6686779 Driver circuit for differentially outputting data from internal circuitry of an LSI to outside the LSI |
| 02/03/2004 | US6686772 Voltage mode differential driver and method |
| 02/03/2004 | US6686771 Full-range extended voltage amplifier |
| 02/03/2004 | CA2273858C Power supply for microphone |
| 02/03/2004 | CA2273210C Class d amplifier |
| 01/29/2004 | WO2004010576A1 Multi-standard amplifier |
| 01/29/2004 | WO2004010575A1 Power amplifier |
| 01/29/2004 | WO2004010501A1 Integrated circuit arrangement |
| 01/29/2004 | WO2003033749A3 Matrix element precharge voltage adjusting apparatus and method |
| 01/29/2004 | WO2003020546A8 Rf-power amplifier |
| 01/29/2004 | US20040018821 Methods and apparatus for detecting the envelope of RF power signals |
| 01/29/2004 | US20040017717 Differential amplifier circuit with high amplification factor and semiconductor memory device using the differential amplifier circuit |
| 01/29/2004 | US20040017260 Power amplifier having high heat dissipation |
| 01/29/2004 | US20040017259 Power amplifier with distributed capacitor |
| 01/29/2004 | US20040017258 Operational amplifier |
| 01/29/2004 | US20040017256 Linearization apparatus capable of adjusting peak-to-average power ratio |
| 01/29/2004 | US20040017255 Amplifier phase droop and phase noise systems and methods |
| 01/29/2004 | US20040017252 Current chopper-type D class power amplifier |
| 01/29/2004 | US20040017248 Semiconductor integrated circuit device enabling to produce a stable constant current even on a low power-source voltage |
| 01/29/2004 | US20040017224 Integrated circuit and sensor for imaging |
| 01/29/2004 | DE10318221A1 System und Verfahren zum Messen von essentiellen Leistungsverstärkungsfunktionen System and method for measuring power amplification essential functions |
| 01/29/2004 | DE10259789A1 Mehrstufiger Verstärker zum Anheben der Ausgangsleistung A multi-stage amplifier for raising the output power |
| 01/29/2004 | DE10231638A1 Integrierte Schaltungsanordnung An integrated circuit device |
| 01/29/2004 | DE10231433A1 Schaltungsanordnung zur Steuerung lastabhängiger Treiberstärken Circuitry for controlling load-dependent drive strengths |
| 01/29/2004 | DE10231183A1 Verstärkerschaltung Amplifier circuit |
| 01/29/2004 | DE10231181A1 Verstärkerschaltung mit einstellbarer Verstärkung und Sendeanordnung mit der Verstärkerschaltung Amplifier circuit with adjustable gain and transmitter arrangement having the amplifier circuit |
| 01/29/2004 | DE10229460B3 Spannungsfolger und ASK-Demodulator mit einem Spannungsfolger Voltage follower and ASK demodulator with a voltage follower |
| 01/29/2004 | DE10228575A1 Verstärker Amplifier |
| 01/29/2004 | DE10223964B3 Verfahren zum Erkennen eines Bursts in einem übertragenen Datenstrom und Schaltungsanordnung zur Durchführung des Verfahrens A method for recognizing a burst in a transmitted data stream and circuit arrangement for performing the method |
| 01/29/2004 | CA2493624A1 Multi-standard amplifier |
| 01/28/2004 | EP1385264A2 Amplifier system for satellite |
| 01/28/2004 | EP1385075A2 Semiconductor integrated circuit device |
| 01/28/2004 | EP1384324A1 A cmos circuit with constant output swing and variable time delay for a voltage controlled oscillator |
| 01/28/2004 | EP1384318A2 Amplifier |
| 01/28/2004 | EP1384317A1 A signal processing circuit |
| 01/28/2004 | EP1384315A2 Device for controlling a closed circuit current for an amplifier transistor and amplifier circuit |
| 01/28/2004 | EP1384312A1 Tunable voltage controlled oscillator |
| 01/28/2004 | EP1384286A1 Inverted-f ferroelectric antenna |
| 01/28/2004 | EP1384285A1 Ferroelectric antenna and method for tuning same |
| 01/28/2004 | CN1471758A Controlled self-oscillation modulator and pwoer conversion system for using same |
| 01/28/2004 | CN1136682C Method and apparatus for determining an operating point of a non-linear amplifier of a communication channel |
| 01/28/2004 | CN1136652C High-fidelity final-stage audio power current amplifier |
| 01/28/2004 | CN1136529C Signal amplifier and image display |
| 01/27/2004 | US6684064 Dynamic bias for RF power amplifiers |
| 01/27/2004 | US6683549 Digital-to-analog converter |
| 01/27/2004 | US6683514 Switched capacitor circuit |
| 01/27/2004 | US6683512 High frequency module having a laminate board with a plurality of dielectric layers |
| 01/27/2004 | US6683499 Divided-voltage fet power amplifiers |
| 01/27/2004 | US6683497 MOS linear transconductance amplifier |
| 01/27/2004 | US6683496 System and method for minimizing dissipation in RF power amplifiers |
| 01/27/2004 | US6683494 Digital signal processor enhanced pulse width modulation amplifier |
| 01/27/2004 | US6683492 Circuits with dynamic biasing |
| 01/27/2004 | US6683490 Temperature dependent constant-current generating circuit |
| 01/27/2004 | US6683484 Combined differential and single-ended input buffer |
| 01/27/2004 | CA2149500C Transmitter for pulsed electronic article surveillance systems |
| 01/22/2004 | WO2004008632A1 Amplifier circuit |
| 01/22/2004 | WO2004008630A2 Amplifying circuit with adjustable amplification and transmitter system comprising such an amplifying circuit |
| 01/22/2004 | WO2003005566A3 Low-noise amplifying circuit |
| 01/22/2004 | US20040014500 Adaptive power pooling apparatus and method in a mobile communication system |
| 01/22/2004 | US20040012456 RF signal amplifier unit, rf signal transmission device and rf signal transmitting terminal-antenna |
| 01/22/2004 | US20040012451 Tunable negative resistance device |
| 01/22/2004 | US20040012445 High frequency power amplifier module and wireless communication system |
| 01/22/2004 | US20040012444 Lineariser |
| 01/22/2004 | US20040012439 Amplifier having multiple offset-compensation paths and related sysems and methods |
| 01/22/2004 | US20040012438 Circuit configuration for controlling load-dependent driver strengths |
| 01/22/2004 | US20040012434 Process for controlling the impedance of an output amplification semiconductor device and corresponding output amplifying device |
| 01/22/2004 | US20040012409 Full-range extended voltage amplifier |
| 01/22/2004 | US20040012044 Semiconductor device |
| 01/22/2004 | DE10331078A1 Einrichtung zum Erfassen einer physikalischen Größe Means for detecting a physical quantity |
| 01/21/2004 | EP1383259A1 Level adjustment apparatus |
| 01/21/2004 | EP1383238A1 Tunable negative resistance device |
| 01/21/2004 | EP1383235A1 Method and apparatus for operating a transmission amplifier |
| 01/21/2004 | EP1383234A1 Varactor with extended tuning range |