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