H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements

Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008)
11/2002
11/05/2002	US6476674 Method and apparatus for error correction of amplifier
11/05/2002	US6476673 Class D audio amplifier
11/05/2002	US6476672 Four phase level shift circuit for use in a push-pull amplifier
11/05/2002	US6476671 Ping-pong amplifier with auto-zeroing and chopping
11/05/2002	US6476660 Fully integrated long time constant integrator circuit
11/05/2002	US6476647 Method and circuit arrangement for signal processing
11/05/2002	US6476646 Sense amplifier of semiconductor integrated circuit
11/05/2002	US6476645 Method and apparatus for mitigating the history effect in a silicon-on-insulator (SOI)-based circuit
11/04/2002	CA2384596A1 Signal amplifying method, signal amplifier and devices related therewith
10/2002
10/31/2002	WO2002087082A1 Tunable matching circuit
10/31/2002	WO2002087077A1 Multistaged amplification circuit
10/31/2002	WO2002087076A2 Class d amplifier with passive rc network
10/31/2002	WO2002087073A2 An improved dc offset self-calibration system for a digital switching amplifier
10/31/2002	WO2002087016A1 Ferroelectric antenna and method for tuning same
10/31/2002	WO2002086795A1 Charge amplifier device having fully integrated dc stabilization
10/31/2002	WO2002060051A9 High linearity circuits and methods regarding same
10/31/2002	WO2002056463A9 System and method for linearizing vacuum electronic amplification
10/31/2002	US20020159609 Audio power amplifying apparatus and method
10/31/2002	US20020158717 Tunable ferro-electric filter
10/31/2002	US20020158692 Electronic circuit comprising an amplifier with improved transient speed
10/31/2002	US20020158691 Slew rate enhancement circuit and method
10/31/2002	US20020158689 Controller-based radio frequency amplifier module and method
10/31/2002	US20020158687 Integrated low-corner frequency high pass filter circuit
10/31/2002	US20020158686 Linear voltage subtractor/adder circuit and MOS differential amplifier circuit therefor
10/31/2002	US20020158685 Differential amplifying circuit and multi-stage differential amplifying circuit using the same
10/31/2002	US20020158681 High-frequency-signal switching circuit suppressing high-frequency-signal distortion
10/31/2002	US20020158619 Satellite TWTA on-line non-linearity measurement
10/31/2002	DE10214724A1 Frequenzwandelschaltung Frequency conversion circuit
10/31/2002	DE10210621A1 Integrierte Halbleiterschaltung A semiconductor integrated circuit
10/30/2002	EP1253727A2 Radio frequency circuit and communications system
10/30/2002	EP1253711A2 Class D amplifier
10/30/2002	EP1253709A2 Signal amplification device
10/30/2002	EP1252633A1 A switched-opamp technique for low-voltage switched-capacitor circuits
10/30/2002	CN1377132A RF gain varying amplifying device
10/30/2002	CN1377131A Low-distortion digital power amplifying method and its system
10/29/2002	US6473253 Read channel with programmable bandwidth control
10/29/2002	US6473133 Broadcast transmission system with correction for distortion caused by amplifying and signal conditioning components at a different rate
10/29/2002	US6473009 PWM power amplifier
10/29/2002	US6472942 Parasitically compensated resistor for integrated circuits
10/29/2002	US6472941 Distributed amplifier with terminating circuit capable of improving gain flatness at low frequencies
10/29/2002	US6472939 Low power supply CMOS differential amplifier topology
10/29/2002	US6472937 Bias enhancement circuit for linear amplifiers
10/29/2002	US6472936 Low-noise gain switching circuit using tapped inductor
10/29/2002	US6472935 Combining networks for switchable path power amplifiers
10/29/2002	US6472934 Triple class E Doherty amplifier topology for high efficiency signal transmitters
10/29/2002	US6472933 Switching amplifier incorporating return-to-zero quaternary power switch
10/29/2002	US6472932 Transconductor and filter circuit
10/29/2002	US6472908 Differential output driver circuit and method for same
10/29/2002	CA2289345C Inverted super regenerative receiver
10/24/2002	WO2002084864A2 Communications signal amplifiers having independent power control and amplitude modulation
10/24/2002	WO2002084863A2 Distributed amplifier with transistors having negative feedback
10/24/2002	WO2002084862A1 High duty cycle offset compensation for operational amplifiers
10/24/2002	WO2002084861A2 Multi-band amplifier having multi-tap rf choke
10/24/2002	WO2002084858A1 Tunable voltage-controlled temperature-compensated crystal oscillator
10/24/2002	WO2002084857A1 Tunable voltage controlled oscillator
10/24/2002	WO2002084798A1 Inverted-f ferroelectric antenna
10/24/2002	WO2002084781A1 Tunable multiplexer
10/24/2002	WO2002084778A2 Tunable phase shifter and applications for same
10/24/2002	WO2002084686A1 Band switchable filter
10/24/2002	WO2002084685A1 Tunable ferro-electric filter
10/24/2002	WO2002084684A2 Tunable planar capacitor
10/24/2002	WO2002084310A1 Low-loss tunable ferro-electric device and method of characterization
10/24/2002	US20020154431 Dual-sense impedance-matched reader
10/24/2002	US20020154044 Analog multiplex level shifter with reset
10/24/2002	US20020153958 Signal amplifier and optical signal receiver using the same
10/24/2002	US20020153957 Charge sensitive preamplifier with pulsed source reset
10/24/2002	US20020153954 Common-mode feedback circuit
10/24/2002	US20020153951 Adaptive linearizer for RF power amplifiers
10/24/2002	US20020153949 2.5 Gigabits-per-second transimpedance amplifier
10/24/2002	US20020153947 Class D amplifier with passive RC network
10/24/2002	US20020153946 Dynamic frequency compensated operation amplifier
10/24/2002	US20020153944 Semiconductor integrated circuit
10/24/2002	US20020153943 Semiconductor integrated circuit
10/24/2002	US20020153940 Amplifier system with on-demand power supply boost
10/24/2002	US20020153926 Inverter circuit
10/24/2002	US20020153536 Semiconductor device
10/24/2002	DE10213599A1 Wellenleiterempfänger mit einem Nachverstärker mit einstellbarer Bandbreite Waveguide receiver with a post-amplifier with adjustable bandwidth
10/24/2002	DE10115099A1 Verfahren zur Amplitudenbegrenzung A method for amplitude limiting
10/24/2002	DE10114935A1 Monolithically integrated high-voltage amplifier for capacitive actuators, has CMOS input amplifier, and layer for dielectrically insulating DMOS transistors in output stage from each other
10/23/2002	EP1250754A1 Non-linear signal processor
10/23/2002	EP1250751A2 Electronic circuit
10/23/2002	CN1376335A Method and apparatus for wireless phone transmit power amplification with reduced power consumption
10/23/2002	CN1376332A Method and apparatus for matching common mode output voltage at a switched-capacitor to continuous-time interface
10/23/2002	CN1376331A Break-before-make distortion compensation for a digital amplifier
10/23/2002	CN1376330A Dynamic switching frequency control for a digital switching amplifier
10/23/2002	CN1376329A DC offset calibration for a digital switching amplifier
10/23/2002	CN1376310A Improved heat dissipation in an amplifier circuit by interleaved configuration of two power transistors
10/23/2002	CN1376013A Audio-frequency circular sound power management switchover
10/23/2002	CN1376007A Electronic circuit unit
10/23/2002	CN1375928A Buffering amplifier capable of miniaturizing and electronic circuit assembly using same
10/23/2002	CN1375927A Self-oscillation powre amplifier
10/23/2002	CN1375926A Audio-frequency power amplifier apparatus and method thereof
10/23/2002	CN1093338C Signal-receiving and signal-processing unit
10/22/2002	US6469581 HEMT-HBT doherty microwave amplifier
10/22/2002	US6469580 Fully differential, variable-gain amplifier and a multidimensional amplifier arrangement
10/22/2002	US6469579 Boosted high gain, very wide common mode range, self-biased operational amplifier
10/22/2002	US6469578 Differential current mode gain stage and methods of using the same
10/22/2002	US6469576 Amplifier circuit for a physical random number generator and a random number generator using the same
10/22/2002	US6469575 Circuit for amplifying and outputting audio signals
10/22/2002	US6469562 Source follower with Vgs compensation

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