Patents
Sitemap › H03 - Basic electronic circuitry › H03F - Amplifiers › H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272)
10/2000
10/24/2000US6137273 Circuit for supplying a high precision current to an external element
10/19/2000WO2000062423A1 Method and apparatus for settling a dc offset
10/19/2000WO2000062418A1 Biasing arrangement for field effect transistors
10/19/2000WO2000062417A1 Predistortion generator coupled with an rf amplifier
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
10/19/2000DE19916685A1 Protective circuit for active component such as operational amplifier, includes series circuit with series resistance and reference diodes connected between supply potentials
10/19/2000DE19916569A1 Current mirror voltage reference circuit
10/19/2000DE10017481A1 Transistor protective circuit for H-bridge circuit, inverts control signals and input them to gates of P-channel and N-channel transistors, respectively
10/19/2000CA2369495A1 Predistortion generator coupled with an rf amplifier
10/18/2000CN1270712A Temperature compensation in electronic devices
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
10/17/2000US6133792 Method and apparatus for preventing power amplifier saturation
10/17/2000US6133791 Feedforward amplifier with improved characteristics without using pilot signal
10/17/2000US6133790 In-line, unbalanced amplifier, predistortion circuit
10/17/2000US6133789 Method and system for robustly linearizing a radio frequency power amplifier using vector feedback
10/17/2000US6133787 Method and apparatus for controlling the common mode impedance misbalance of an isolated single-ended circuit
10/17/2000US6133763 High impedance circuit
10/12/2000WO2000060736A1 Transmitter and receiver
10/12/2000WO2000060735A1 Non-linear distortion generator
10/12/2000WO2000060734A1 Non-linear distortion generator
10/12/2000WO2000060733A1 Non-linear distortion generator for both second and third order distortion
10/12/2000WO2000060732A1 Signal processing
10/12/2000CA2368585A1 Non-linear distortion generator
10/12/2000CA2368578A1 Non-linear distortion generator
10/12/2000CA2368422A1 Non-linear distortion generator for both second and third order distortion
10/12/2000CA2333742A1 Transmitter and receiver
10/11/2000EP1043832A1 Differential output stage for electronic equipment for feeding a terminal remotely
10/11/2000EP1042865A2 Pulse referenced control method for enhanced power amplification of a pulse modulated signal
10/11/2000EP1042864A1 Method and apparatus for wideband predistortion linearization
10/11/2000EP1042863A1 Low voltage transistor biasing
10/11/2000EP1042862A1 Carrier reutilization for synchronous detection
10/11/2000EP0757857B1 Low-voltage cmos comparator
10/11/2000EP0632939B1 Linear amplifier control
10/11/2000CN1269922A Amplifier circuit
10/11/2000CN1269635A Electronic apparatus with power amplifier
10/11/2000CN1269632A Overcurrent sensing circuit and self-regulating blankoff
10/10/2000US6130954 High back-emf, high pressure subwoofer having small volume cabinet, low frequency cutoff and pressure resistant surround
10/10/2000US6130910 Method and apparatus for high efficiency wideband power amplification
10/10/2000US6130589 Matching circuit and a method for matching a transistor circuit
10/10/2000US6130582 Amplifier circuit including compensation circuitry for canceling variations in an amplifier feedback signal
10/10/2000US6130581 Bias control for gain stabilization
10/10/2000US6130579 Feed-forward biasing for RF amplifiers
10/10/2000US6130578 Chopper-stabilized amplifier with digital frequency modulated clocking and method
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
10/05/2000WO2000059109A1 Class d digital amplifier
10/05/2000CA2363336A1 Predistortion arrangement using mixers in nonlinear electro-optical applications
10/04/2000EP1041712A2 Feedforward amplifier
10/04/2000EP1041711A1 Electronic device with a power amplifier
10/04/2000EP1040586A1 Programmable linear receiver
10/04/2000EP1040580A1 Cmos output amplifier independent of temperature, supply voltage and manufacturing quality of transistors
10/04/2000EP1040571A1 Method and arrangement for correcting phase error in linearization loop of power amplifier
10/04/2000EP1040569A1 Feed forward amplifier with digital intermodulation control
10/04/2000EP1040568A2 A variable gain amplifier using impedance network
10/04/2000EP1040567A1 Power amplification apparatus and method therefor
10/04/2000CN1269066A Efficient parallel-stage power amplifier
10/03/2000US6128478 Apparatus and method for amplifying a radio frequency signal
10/03/2000US6127894 High frequency shunt feedback amplifier topology
10/03/2000US6127890 Variable gain circuit with improved gain response
10/03/2000US6127889 Nested feed forward distortion reduction system
10/03/2000US6127888 Power amplification device
10/03/2000US6127887 High gain, impedance matching low noise RF amplifier circuit
09/2000
09/28/2000WO2000057563A1 Radio transmitters
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
09/27/2000EP1039702A1 Impedance matching in line drivers
09/27/2000EP1039631A1 Pre/post-distortion circuit and method, particularly for microwave radio-frequency systems
09/27/2000EP1039630A1 Broadband linearizing apparatus
09/27/2000EP1039629A1 An amplifier circuit arrangement
09/27/2000EP1039574A2 Travelling wave power combiner and radio base station
09/27/2000EP0827642B1 A cartesian loop transmitter
09/27/2000CN1268271A Adaptive pre-equalization apparatus for correcting linear distortion of a non-ideal data transmission system
09/27/2000CN1268011A Method for counting electric power control code value according temperature compensation in radio communication terminal
09/27/2000CN1267955A Double-mode grade D amplifier
09/27/2000CN1267879A Wide-band back read using for data storage magnetoresistance head
09/26/2000US6125266 Dual band architectures for mobile stations having transmitter linearization feedback
09/26/2000US6125094 Current amplifier
09/26/2000US6124767 RF/Microwave oscillator
09/26/2000CA2074124C Transmitter with nonlinearity correction circuits
09/25/2000CA2302124A1 High-efficiency line driver
09/21/2000WO2000055982A1 A portable radio transceiver
09/21/2000WO2000055968A1 Power amplifier unit
09/21/2000WO2000055967A1 Semiconductor device and communication device
09/21/2000WO2000055966A1 Power supply compensation for noise shaped, digital amplifiers
09/21/2000WO2000055964A1 Linearized transconductance cell
09/21/2000DE19962811A1 Gegentaktverstärkerschaltung mit Leerlaufstromsteuerung Push-pull amplifier circuit with idle power control
09/20/2000EP1037053A1 Amplifier for piezoelectric acceleration sensor
09/19/2000US6122654 Complex multiplication circuit
09/19/2000US6122532 RF amplifier with reduced power consumption
09/19/2000US6122492 Adjustable radio frequency power amplifier and transmitter
09/19/2000US6122491 Communications system using power amplifier with dynamic biasing
09/19/2000US6121840 High-frequency amplifier
09/19/2000US6121839 Class AB CMOS output stage for operational amplifier
09/19/2000US6121838 Precision GaAs low-voltage DC amplifier
09/19/2000US6121835 Variable time delay network, method and apparatus thereof
09/19/2000US6121834 Signal compressing apparatus
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