| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 05/22/2001 | US6236242 Line receiver circuit with large common mode range for differential input signals |
| 05/17/2001 | WO2001035623A1 A low insertion loss current sense circuit |
| 05/17/2001 | WO2001035526A2 Improved floating, balanced output circuit |
| 05/17/2001 | US20010001232 Wide-band linearization technique |
| 05/16/2001 | EP1100216A2 Recovering data encoded in infrared signals |
| 05/16/2001 | EP1100147A2 Power amplifier system for an antenna system |
| 05/16/2001 | EP1099301A1 High gain, impedance matching low noise rf amplifier circuit |
| 05/16/2001 | EP0943225B1 Power supply for microphone |
| 05/15/2001 | US6233436 Intermodulation compensation in multi-channel amplifiers |
| 05/15/2001 | US6233434 System for transmitting/receiving a signal having a carrier frequency band for a radio base station |
| 05/15/2001 | US6232848 Low voltage topology for radio frequency integrated circuit design |
| 05/15/2001 | US6232842 Amplifying circuit and optical receiver comprising the same |
| 05/15/2001 | US6232841 Integrated tunable high efficiency power amplifier |
| 05/15/2001 | US6232840 Transistor amplifier having reduced parasitic oscillations |
| 05/15/2001 | US6232836 In-line, unbalanced amplifier, predistortion circuit |
| 05/15/2001 | US6232833 Low noise low distortion class D amplifier |
| 05/15/2001 | US6232832 Circuit for limiting an output voltage to a percent of a variable supply voltage |
| 05/15/2001 | US6232822 Semiconductor device including a bipolar transistor biased to produce a negative base current by the impact ionization mechanism |
| 05/15/2001 | US6232805 Buffer circuit with voltage clamping and method |
| 05/15/2001 | US6232801 Comparators and comparison methods |
| 05/15/2001 | CA2257617C Wideband catv amplifier with microprocessor-based slope and gain control |
| 05/15/2001 | CA2064764C Low offset voltage unity gain buffer amplifier |
| 05/12/2001 | CA2289397A1 A low insertion loss current sense circuit for line cards |
| 05/09/2001 | EP1098436A2 Method for controlling an audio amplifier and audio amplifier with a switched output stage |
| 05/09/2001 | EP1098435A1 Low cost miniature broadband linearizer |
| 05/09/2001 | CN1294717A High gain input stage for radio frequency identification (RFID) transponder and method therefor |
| 05/08/2001 | US6229398 Interface device between a broad-band ultrahigh frequency optoelectronic sensor and a load |
| 05/08/2001 | US6229396 Controlled impedance transformer line driver |
| 05/08/2001 | US6229395 Differential transconductance amplifier |
| 05/08/2001 | US6229394 Circuit providing a negative resistance to offset error voltage for use with a folded cascode amplifier |
| 05/08/2001 | US6229392 High power switch-mode radio frequency amplifier method and apparatus |
| 05/08/2001 | US6229390 Methods and apparatus for noise shaping a mixed signal power output |
| 05/08/2001 | US6229389 Class D modulator with peak current limit and load impedance sensing circuits |
| 05/08/2001 | US6229388 Multiple channel class D audio amplifier |
| 05/08/2001 | US6229387 Output signal converter for ampliciation or attenuation of tube amplifier output while maintaining output properties |
| 05/08/2001 | US6229382 MOS semiconductor integrated circuit having a current mirror |
| 05/08/2001 | US6229373 Level shifter |
| 05/08/2001 | US6229354 Method and circuit arrangement for signal processing |
| 05/08/2001 | US6229348 Balance-to-single signal converting circuit |
| 05/08/2001 | US6229347 Circuit for evaluating an asysmetric antenna effect |
| 05/03/2001 | WO2001031780A1 Transconductor with controllable transconductance for low supply voltages |
| 05/02/2001 | EP1096831A2 Semiconductor amplifying circuit and semiconductor electret condenser microphone |
| 05/02/2001 | EP1096671A1 A differential operational amplifier |
| 05/02/2001 | EP1096669A2 Semiconductor amplifier circuit and system |
| 05/02/2001 | EP1096668A1 Power amplifier |
| 05/02/2001 | EP1095462A1 Method for elaborating a transmission signal and transmitter with amplifying cells for implementing same |
| 05/02/2001 | EP1095451A1 Level shifting circuit arrangement and optical read/write device including the circuit arrangement |
| 05/02/2001 | EP1095448A1 Distributed amplifier and method therefor |
| 05/02/2001 | EP0856167B1 Multi-stage current feedback amplifier |
| 05/02/2001 | CN1065379C Tri-state video differential driver |
| 05/02/2001 | CA2323982A1 Rf amplifier having a dual slope phase modulator |
| 05/01/2001 | US6225866 Series connected multi-stage linear FET amplifier circuit |
| 05/01/2001 | US6225864 RF amplifier having a dual slope phase modulator |
| 05/01/2001 | US6225863 Offset adjusting apparatus for canceling offset voltage generated in difference amplifier |
| 05/01/2001 | US6225839 Buffer circuit |
| 05/01/2001 | US6225801 Article comprising electronic circuits and devices with magnetically programmable electrical resistance |
| 04/26/2001 | DE19946459A1 Low-noise wideband amplifier for ultrasound apparatus, magnetic resonance equipment or high frequency measuring device has controlled current source in negative feedback loop |
| 04/25/2001 | EP1094599A1 A circuit for compensating for the difference between the Vgs voltages of two MOS transistors |
| 04/25/2001 | EP1093686A1 Improved exponential current generator and method |
| 04/25/2001 | CN1065088C Magnetic recording device and method |
| 04/24/2001 | US6222831 Receiving circuit of cellular telephone set |
| 04/24/2001 | US6222418 Feed-forward compensation scheme for feedback circuits |
| 04/24/2001 | US6222417 Amplifier output stage provided with a parasitic-current limiter |
| 04/24/2001 | US6222416 Signal amplifier circuit with symmetrical inputs and outputs |
| 04/24/2001 | US6222415 Magneto-resistive element signal amplifying circuit |
| 04/24/2001 | US6222414 Bipolar-plus-DMOS mixed-typology power output stage |
| 04/24/2001 | US6222353 Voltage regulator circuit |
| 04/24/2001 | CA2261858C High speed process-controlled transresistance amplifier |
| 04/24/2001 | CA2236193C Semiconductor microwave amplifier |
| 04/19/2001 | WO2001028087A1 Constant impedance for switchable amplifier with power control |
| 04/19/2001 | WO2001028086A1 Compensation circuit and method for a power transistor |
| 04/19/2001 | WO2000070751A8 Broadcast transmission system with correction for distortion |
| 04/19/2001 | DE10034864A1 Amplifier and by-pass switch arrangement for communication systems, has first and second circuit inputs, and circuit output, in which circuit includes amplifying transistors, resistors and capacitors |
| 04/18/2001 | EP1093221A1 A compact differential transconductance amplifier and a method of operation thereof |
| 04/18/2001 | EP1092300A1 Circuit for suppressing a common mode component in a signal from a can communication bus |
| 04/18/2001 | EP1092265A1 Amplification using amplitude reconstruction of amplitude and/or angle modulated carrier |
| 04/18/2001 | EP1092221A1 A read channel with programmable bandwidth control |
| 04/18/2001 | CN1292168A Method in compensation of unlinearities in amplifier, amplifier, and uses of method and amplifier |
| 04/17/2001 | US6219535 Semiconductor amplifier and frequency converter |
| 04/17/2001 | US6219310 Optical read/write apparatus |
| 04/17/2001 | US6219261 Differential voltage-to-current converter |
| 04/17/2001 | US6218905 Common-gate transimpedance amplifier with dynamically controlled input impedance |
| 04/17/2001 | US6218904 Biasing scheme for GAASFET amplifier |
| 04/17/2001 | US6218903 Signal amplifier and magnetic disk storage apparatus using the same |
| 04/17/2001 | US6218902 Wide-band linearization technique |
| 04/17/2001 | US6218901 High speed differential output driver with increased voltage swing and predrive common mode adjustment |
| 04/17/2001 | US6218900 Operational amplifier phase reversal protection |
| 04/17/2001 | US6218897 Reconfigurable linear power amplifier |
| 04/17/2001 | US6218887 Method of and apparatus for multiplexing multiple input signals |
| 04/17/2001 | US6218883 Semiconductor integrated circuit for electric microphone |
| 04/12/2001 | WO2001026416A2 High performance audio transmission channel |
| 04/12/2001 | WO2001026217A1 High-frequency power amplifier |
| 04/12/2001 | WO2001026216A1 Amplifier |
| 04/12/2001 | WO2001026194A1 Optical integrated device |
| 04/12/2001 | WO2000048307A8 High-efficiency modulating rf amplifier |
| 04/12/2001 | DE19947808A1 Amplifier circuit has two bridge end stages for operating loudspeaker with two oscillating coils; coils are driven by end stages depending on power level delivered to loudspeaker |
| 04/12/2001 | DE10044416A1 Switching mode power converter has controller for motor speed control coupled to pair of switches, which activates each of the switches during respective switching cycles |
| 04/12/2001 | DE10035060A1 Leistungsverstärkungsschaltung mit Lasteinstellung zur Steuerung der Leistung des benachbarten Kanals und des übernächsten Kanals Power amplifier circuit with load setting to control the power of the adjacent channel and of the next channel |
| 04/11/2001 | EP1091534A1 High efficiency transmission channel |
| 04/11/2001 | EP1091489A2 Multi-stage, low-offset, fast recovery, comparator system and method |