Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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10/31/2000 | US6140875 Device for amplifying digital signals |
10/31/2000 | US6140873 Power amplifier with soft switching and multilevel switching cells |
10/31/2000 | US6140872 Offset-compensated amplifier input stage and method |
10/31/2000 | US6140871 Switched capacitor amplifier circuit having bus precharge capability and method |
10/31/2000 | US6140870 Hybrid thermionic valve and solid state audio amplifier |
10/31/2000 | US6140867 Transconductance control circuit, particularly for continuous-time circuits |
10/31/2000 | US6140860 Thermal sensing circuit |
10/26/2000 | WO2000064142A1 Circuit for processing a time-discrete analog signal and image sensor |
10/26/2000 | WO2000064048A1 Rf power amplifier with feedback from the isolation port of a hybrid coupler |
10/26/2000 | WO2000064047A1 Linear traveling wave tube amplifier utilizing input drive limiter for optimization |
10/26/2000 | WO2000064046A1 System and method for converting from single-ended to differential signals |
10/26/2000 | WO2000064045A1 Amplifier arrangement |
10/26/2000 | WO2000064044A1 Communication device |
10/26/2000 | WO2000064043A1 Improved operational amplifier output stage |
10/25/2000 | EP1047194A1 High-frequency clipping stage |
10/25/2000 | EP1047188A2 Offset voltage cancellation system for radio frequency power controllers |
10/25/2000 | EP1047187A2 Pre-amplifier circuit |
10/25/2000 | EP1047186A1 Amplifier form communication device |
10/25/2000 | EP1047184A2 Disbtributed gain line driver amplifier |
10/25/2000 | EP1046282A1 Display driver apparatus |
10/25/2000 | EP1046226A1 Amplifier |
10/25/2000 | EP1046225A1 Device with common mode feedback for a differential output |
10/25/2000 | CN1271209A Pre-amplifier cirucit |
10/24/2000 | US6137377 Four stage selectable phase shifter with each stage floated to a common voltage |
10/24/2000 | US6137367 High power high impedance microwave devices for power applications |
10/24/2000 | US6137366 High VSWR mismatch output stage |
10/24/2000 | US6137364 Low voltage drop integrated analog amplifier without external compensation network |
10/24/2000 | US6137363 Operational amplifier |
10/24/2000 | US6137362 Low noise and high input dynamic range differential amplifier stage |
10/24/2000 | US6137360 Differential amplifier and voltage follower circuit |
10/24/2000 | US6137359 Low-distortion high-frequency amplifier |
10/24/2000 | US6137358 Class S radio frequency power amplifier |
10/24/2000 | US6137355 Dual-mode amplifier with high efficiency and high linearity |
10/24/2000 | US6137350 Differential amplifier circuit |
10/24/2000 | US6137319 Reference-free single ended clocked sense amplifier circuit |
10/24/2000 | US6137101 Light receiving amplifying device |
10/24/2000 | CA2179543C Kinescope driver apparatus |
10/19/2000 | WO2000062422A1 A power switching circuit |
10/19/2000 | WO2000062418A1 Biasing arrangement for field effect transistors |
10/19/2000 | WO2000062416A2 Amplifier device with adjustable operating-point control and use of said amplifier device |
10/19/2000 | DE19916902A1 Verstärkereinrichtung mit veränderbarer Arbeitspunkteinstellung sowie Verwendung der Verstärkereinrichtung Amplifier means having a variable operating point setting and use the amplifier device |
10/19/2000 | DE19916569A1 Current mirror voltage reference circuit |
10/18/2000 | EP1045516A2 Signal amplifying circuit |
10/18/2000 | EP1045515A2 DC offset compensation circuit for a signal amplifier |
10/18/2000 | EP1045442A2 Semiconductor integrated circuit |
10/18/2000 | CN2402059Y Voltage pulse signal amplifier |
10/18/2000 | CN1057648C Differential amplifying apparatus |
10/17/2000 | US6134424 High-frequency power amplifier and mobile communication device using same |
10/17/2000 | US6133793 Circuit and method of amplifying a signal for a receiver |
10/17/2000 | US6133790 In-line, unbalanced amplifier, predistortion circuit |
10/17/2000 | US6133788 Hybrid Chireix/Doherty amplifiers and methods |
10/17/2000 | US6133787 Method and apparatus for controlling the common mode impedance misbalance of an isolated single-ended circuit |
10/12/2000 | WO2000060694A1 A balun for coaxial cable transmission |
10/11/2000 | EP1043832A1 Differential output stage for electronic equipment for feeding a terminal remotely |
10/11/2000 | EP1042867A1 Differential comparator with stable switching threshold |
10/11/2000 | EP1042865A2 Pulse referenced control method for enhanced power amplification of a pulse modulated signal |
10/11/2000 | EP1042863A1 Low voltage transistor biasing |
10/11/2000 | EP0757857B1 Low-voltage cmos comparator |
10/11/2000 | EP0632939B1 Linear amplifier control |
10/11/2000 | CN1269635A Electronic apparatus with power amplifier |
10/11/2000 | CN1269634A 功率放大器 PA |
10/11/2000 | CN1269633A Common collector-common base and common collector-common base-common collector transistor amplifier circuit |
10/11/2000 | CN1269632A Overcurrent sensing circuit and self-regulating blankoff |
10/10/2000 | US6130589 Matching circuit and a method for matching a transistor circuit |
10/10/2000 | US6130580 Microwave amplifier optimized for stable operation |
10/10/2000 | CA2225855C High-frequency amplifier |
10/08/2000 | CA2300631A1 Differential output stage for electronic equipment, permitting remote powering of a terminal |
10/05/2000 | WO2000059141A1 Predistortion arrangement using mixers in nonlinear electro-optical applications |
10/05/2000 | WO2000059126A1 Optical amplifier |
10/05/2000 | WO2000059109A1 Class d digital amplifier |
10/05/2000 | CA2363336A1 Predistortion arrangement using mixers in nonlinear electro-optical applications |
10/04/2000 | EP1041750A2 Optical receiving circuit and optical communication device |
10/04/2000 | EP1041713A1 Voltage follower circuit |
10/04/2000 | EP1041711A1 Electronic device with a power amplifier |
10/04/2000 | EP1040580A1 Cmos output amplifier independent of temperature, supply voltage and manufacturing quality of transistors |
10/04/2000 | EP0663723B1 Filter circuit |
10/04/2000 | CN1269066A Efficient parallel-stage power amplifier |
10/03/2000 | US6128508 Communications system using multi-band amplifiers |
10/03/2000 | US6128478 Apparatus and method for amplifying a radio frequency signal |
10/03/2000 | US6128039 Column amplifier for high fixed pattern noise reduction |
10/03/2000 | US6127899 High frequency anharmonic oscillator for the generation of broadband deterministic noise |
10/03/2000 | US6127894 High frequency shunt feedback amplifier topology |
10/03/2000 | US6127892 Amplification circuit |
10/03/2000 | US6127891 Low voltage class AB amplifier with gain boosting |
10/03/2000 | US6127890 Variable gain circuit with improved gain response |
10/03/2000 | US6127888 Power amplification device |
10/03/2000 | US6127887 High gain, impedance matching low noise RF amplifier circuit |
10/03/2000 | US6127886 Switched amplifying device |
10/03/2000 | US6127885 Class D amplifiers including transition zone modulation |
10/03/2000 | US6127868 Timer circuit |
10/03/2000 | US6127854 Differential comparator with stable switching threshold |
09/28/2000 | WO2000057579A1 Multiplexed power amplifiers for satellite communication system |
09/28/2000 | WO2000057546A1 Method of improving amplifier input offset, and amplifier |
09/28/2000 | DE10011056A1 Sense amplifier for channel-front-end for magnetic recording has active termination at input to gains stage so that input impedance matches characteristic impedance of connection to which input is coupled |
09/27/2000 | EP1039630A1 Broadband linearizing apparatus |
09/27/2000 | EP1039629A1 An amplifier circuit arrangement |
09/27/2000 | EP1039574A2 Travelling wave power combiner and radio base station |
09/27/2000 | CN1268000A Receiver with internal low-noise high-frequency amplifier |
09/27/2000 | CN1267955A Double-mode grade D amplifier |
09/27/2000 | CN1267879A Wide-band back read using for data storage magnetoresistance head |