| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 03/23/2000 | WO2000016316A1 Magnetic disk memory and a hard disk drive |
| 03/23/2000 | DE19841718A1 Komparator Comparator |
| 03/23/2000 | DE19838693A1 Circuit extracting signals from integrated photodiodes in series with source follower overcomes individual connection problems and provides rapid response using current mirror-cascode circuitry |
| 03/22/2000 | EP0987818A2 Switching amplifier for generating continuous arbitrary waveforms for magnetic resonance imaging coils |
| 03/22/2000 | EP0987817A1 Method and apparatus for improving efficiency of high-power linear amplifier |
| 03/22/2000 | EP0746911A4 Transceiver for transmitting and receiving stair-stepped sinusoidal waveforms |
| 03/22/2000 | CN2370615Y Integrated three channel audio signal amplifier |
| 03/22/2000 | CN2370614Y Full electronic protective sound power amplifier power supply |
| 03/22/2000 | CN1248093A Integral three-channel audio signal amplifier |
| 03/22/2000 | CN1050720C Communication apparatus utilizing high power amplifier |
| 03/22/2000 | CN1050718C Solid state tube compression circuit |
| 03/21/2000 | US6040743 Voltage controlled oscillator for recovering data pulses from a data input stream having digital data with an unknown phase |
| 03/21/2000 | US6040741 Preamplifier for amplifying signal voltages from a signal source with high source impedance |
| 03/21/2000 | US6040737 Output buffer circuit and method that compensate for operating conditions and manufacturing processes |
| 03/21/2000 | US6040732 Switched-transconductance circuit within integrated T-switches |
| 03/16/2000 | WO2000014883A2 Differential input circuit for digital signal processing system |
| 03/16/2000 | WO2000014870A1 Battery polarity insensitive integrated circuit amplifier |
| 03/16/2000 | WO2000002307B1 Semiconductor amplifier circuit and system |
| 03/16/2000 | CA2343322A1 Battery polarity insensitive integrated circuit amplifier |
| 03/15/2000 | EP0986174A1 Comparator |
| 03/15/2000 | EP0986171A1 Transmitting apparatus and transmitting method |
| 03/15/2000 | EP0986170A1 Interfacing device between a broadband microwave opto-electronic sensor and a load |
| 03/15/2000 | CN2369411Y Class A power amplifier |
| 03/15/2000 | CN1247319A Switching amplifier of generating continuous free wave shape for magnetic resonance imaging coil |
| 03/15/2000 | CN1050464C Output voltage compensating circuit |
| 03/14/2000 | US6037841 Impedance matched CMOS transimpedance amplifier for high-speed fiber optic communications |
| 03/14/2000 | US6037840 Article comprising a combiner-splitter |
| 03/14/2000 | US6037839 BTL amplifying circuit |
| 03/14/2000 | US6037836 Switched-capacitor amplifier circuit |
| 03/14/2000 | US6037823 Offset correction circuit |
| 03/14/2000 | CA2145698C Electronic circuit for a transducer |
| 03/09/2000 | WO2000013310A1 Multiplexing amplifier |
| 03/09/2000 | WO2000013309A1 Differential amplifier with gain linearization through transconductance compensation |
| 03/09/2000 | WO2000013308A1 Linear and multi-sinh transconductance circuits |
| 03/09/2000 | WO2000013307A1 Class d amplifiers including transition zone modulation |
| 03/09/2000 | DE19919945A1 Magnetoresistivkopfleseverstärker Magnetoresistivkopfleseverstärker |
| 03/09/2000 | DE19840776A1 Complementary emitter follower for active filter circuit used in power amplifier, has push-pull AB operation |
| 03/08/2000 | EP0847616B1 Opposed current power converter |
| 03/08/2000 | EP0799459A4 Electro-optical sensor |
| 03/08/2000 | CN1246964A Radio architecture |
| 03/08/2000 | CN1246774A Device for receiving and transmitting carrier band signal for radio base station |
| 03/07/2000 | US6035049 AC coupling and signal amplification using switched capacitors |
| 03/07/2000 | US6034671 Photocoupling signal detection circuit for a computer mouse |
| 03/07/2000 | US6034567 Semiconductor integrated circuit device provided with a differential amplifier |
| 03/07/2000 | US6034566 Tuning amplifier |
| 03/07/2000 | US6034556 Sample-and-hold circuit including operational amplifier as an input circuit |
| 03/07/2000 | US6034537 Driver circuits |
| 03/07/2000 | US6034518 Stabilized current mirror circuit |
| 03/07/2000 | US6034367 Biasing arrangement for linear detector array |
| 03/07/2000 | CA2181635C Circuit arrangement with a multiplexer |
| 03/02/2000 | WO2000011816A1 In-line predistorter for linearization of electronic and optical signals |
| 03/02/2000 | WO2000011780A1 Transimpedance amplifier with automatic gain control |
| 03/01/2000 | EP0982880A2 Optical transmitter having temperature compensating function and optical transmission system |
| 03/01/2000 | EP0982854A2 RF power amplifier control system |
| 03/01/2000 | EP0982853A2 Amplifier |
| 03/01/2000 | EP0982852A2 Power amplifier having monitoring and circuit protection |
| 03/01/2000 | EP0981819A2 Optical read/write apparatus |
| 03/01/2000 | EP0896716A4 Pwm/linear driver for disk drive voice coil actuator |
| 03/01/2000 | CN1246220A Intermodulation compensation in multi-channel amplifiers |
| 03/01/2000 | CN1246002A Optical transmitter with temperature-compensation function and optical transmission system |
| 02/29/2000 | US6031782 Semiconductor memory device provided with an interface circuit consuming a reduced amount of current consumption |
| 02/29/2000 | US6031746 Switching amplifier for generating continuous arbitrary waveforms for magnetic resonance imaging coils |
| 02/29/2000 | US6031480 Method and apparatus for implementing a pipelined A/D converter with inter-stage amplifiers having no common mode feedback circuitry |
| 02/29/2000 | US6031424 Differential amplifier with improved voltage gain using operational amplifiers to eliminate diode voltage drops |
| 02/29/2000 | US6031423 Input stage for rail-to-rail input op amp |
| 02/29/2000 | US6031422 Power amplifier and nuclear magnetic resonance tomography apparatus employing same |
| 02/29/2000 | US6031420 Operational amplifier arrangement |
| 02/29/2000 | US6031414 Constant current circuit with small output current fluctuation |
| 02/29/2000 | US6031404 Analog-signal to square-wave-signal reshaping system with offset compensation |
| 02/29/2000 | US6031219 Bias voltage supply circuit for photoelectric converting element and photodetection circuit |
| 02/23/2000 | EP0981197A1 Amplifying circuit and optical receiver comprising the same |
| 02/23/2000 | EP0730793A4 Coplanar waveguide-mounted flip chip |
| 02/23/2000 | CN2365818Y Power amplifing device for power amplifier |
| 02/23/2000 | CN1049788C Two-acoustic channel three-dimension Hi-Fi processor |
| 02/23/2000 | CN1049776C Amplifier with constant current and constant voltage feeding |
| 02/22/2000 | US6028944 Signal processing apparatus with selective power amplification |
| 02/22/2000 | US6028943 Audio amplifier system using a class D amplifier |
| 02/22/2000 | US6028761 Apparatus and method for monitoring, controlling, displaying and dissipating an electrostatic charge |
| 02/22/2000 | US6028484 Ultrasound apparatus and method for amplifying transmit signals |
| 02/22/2000 | US6028483 Universal fixture/package for spatial-power-combined amplifier |
| 02/22/2000 | US6028482 Wide dynamic range transimpedance amplifier circuit |
| 02/22/2000 | US6028481 Rail to rail output stage of an amplifier |
| 02/22/2000 | US6028480 Amplifier with active-bootstrapped gain-enhancement technique |
| 02/22/2000 | US6028479 Low voltage transmission line driver |
| 02/22/2000 | US6028478 Converter circuit and variable gain amplifier with temperature compensation |
| 02/22/2000 | US6028476 Power switched amplifer |
| 02/19/2000 | CA2280489A1 Rf power amplifier control system |
| 02/17/2000 | WO2000008870A2 Apparatus and method of linearizing a power amplifier in a mobile radio communication system |
| 02/16/2000 | EP0979559A1 Amplifier module with two power amplifiers for dual band cellular phones |
| 02/16/2000 | EP0979551A1 Method and apparatus for efficient signal power amplification |
| 02/16/2000 | CN2364624Y Power amplifier |
| 02/16/2000 | CN1244969A Method and system for placing digit converter in hybrid matrix amplifier |
| 02/16/2000 | CN1049511C Frequency compensated circuit |
| 02/15/2000 | US6025753 Method and apparatus for amplifying a signal |
| 02/15/2000 | US6025752 Inverting amplifying circuit |
| 02/15/2000 | US6025742 Low voltage differential swing driver circuit |
| 02/15/2000 | US6025614 Amplifier semiconductor element, method for fabricating the same, and amplifier semiconductor device |
| 02/10/2000 | WO2000007301A2 Hardware-efficient transceiver with delta-sigma digital-to-analog converter |
| 02/10/2000 | WO2000007296A1 Portable telephone |
| 02/10/2000 | WO2000007295A1 A nonlinear transconductance amplifier |