| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 03/25/1999 | DE19741794A1 Error correction device PWM signals |
| 03/24/1999 | EP0903849A2 Audio level compression circuit |
| 03/24/1999 | EP0903848A1 Symmetrical to asymmetrical signal conversion device |
| 03/24/1999 | EP0903847A1 Amplifier circuit |
| 03/24/1999 | EP0903803A2 Power splitter/combiner circuit, high power amplifier and balun circuit |
| 03/24/1999 | EP0903009A1 Hybrid matrix amplifier with noise reduction |
| 03/24/1999 | CN1211855A Operational amplifier |
| 03/24/1999 | CN1211854A Display driving apparatus having variable driving ability |
| 03/23/1999 | US5886580 Tuned amplifier |
| 03/23/1999 | US5886578 Differential amplifier including bias circuit with bias resistor |
| 03/23/1999 | US5886577 Apparatus for efficient current amplification |
| 03/23/1999 | US5886574 High-frequency amplifier |
| 03/23/1999 | US5886573 Amplification using amplitude reconstruction of amplitude and/or angle modulated carrier |
| 03/23/1999 | US5886546 Current/voltage converter, sense amplifier and sensing method using same |
| 03/23/1999 | US5886506 Power supply circuit |
| 03/23/1999 | CA2144240C Analog multiplier using multitail cell |
| 03/17/1999 | EP0902562A2 Circuit for combining input signals of a multiplexer into an output signal |
| 03/17/1999 | EP0902533A1 Differential amplifier |
| 03/16/1999 | US5884154 Low noise mixer circuit having passive inductor elements |
| 03/16/1999 | US5883798 Voltage/current conversion circuit |
| 03/16/1999 | US5883542 Arrangement for reducing and stabilizing the amplification of a Darlington-coupled output stage |
| 03/16/1999 | US5883539 Differential circuit and multiplier |
| 03/16/1999 | US5883535 Slew rate controllable amplification circuit |
| 03/16/1999 | CA2179465C Output stage of operational amplifier suitable for mounting on a substrate and method of amplifying therewith |
| 03/11/1999 | WO1999012256A1 Radar transmitter |
| 03/10/1999 | EP0901221A1 Differential output amplifier arrangement and method for tuning the output impedance of a differential output amplifier |
| 03/10/1999 | EP0901220A1 Operational amplifier |
| 03/10/1999 | EP0901219A2 Dynamic power allocation system and method for multi-beam satellite amplifiers |
| 03/10/1999 | EP0901058A1 Two stage current mirror |
| 03/10/1999 | EP0900476A2 Voltage-to-current converter with error correction |
| 03/10/1999 | EP0610430B1 Analog-to-digital converter and method of fabrication |
| 03/10/1999 | CN1210401A Method and facility for equalizing electric signal distorted due to interference in the optical domain |
| 03/10/1999 | CN1210394A Reduction of excessive spectral power distribution from class-C saturated amplification of pulsed-carrier signal |
| 03/09/1999 | US5881014 Semiconductor memory device with a voltage down converter stably generating an internal down-converter voltage |
| 03/09/1999 | US5880640 Distributed amplifier for wide band hyperfrequency signals |
| 03/09/1999 | US5880639 Amplification circuit |
| 03/09/1999 | US5880638 Rail-to-rail operational amplifier and method for making same |
| 03/09/1999 | US5880637 Low-power operational amplifier having fast setting time and high voltage gain suitable for use in sampled data systems |
| 03/09/1999 | US5880636 Input stage for operational amplifier utilizing phase delay of active load current mirror to achieve improved bandwidth and phase margin |
| 03/09/1999 | US5880634 Wide band-width operational amplifier |
| 03/09/1999 | US5880632 Tube amplifier having special configuration with two or more tubes |
| 03/09/1999 | US5880630 Gain stage and offset voltage elimination method |
| 03/09/1999 | US5880627 Low power op-amp circuit with boosted bandwidth |
| 03/09/1999 | US5880626 Active damping for a disk drive write circuit |
| 03/09/1999 | US5880610 Current-to-voltage converting device and light receiver |
| 03/09/1999 | US5880582 Current mirror circuit and reference voltage generating and light emitting element driving circuits using the same |
| 03/04/1999 | WO1999011038A1 Line receiver circuit with large common mode range for differential input signals |
| 03/04/1999 | WO1999010977A2 Amplifier with controllable output current |
| 03/04/1999 | DE19736900A1 Leitungsempfängerschaltkreis mit großem Gleichtaktspannungsbereich für differentielle Eingangssignale Line receiver circuit with large common-mode voltage range for differential input signals |
| 03/03/1999 | EP0899871A1 Performance selection in an integrated circuit |
| 03/03/1999 | EP0899869A1 Method and circuit for biasing a transistor stage |
| 03/03/1999 | EP0899714A2 Column driver for an active matrix liquid crystal display |
| 03/02/1999 | US5877914 Amplifier output clamping scheme |
| 03/02/1999 | US5877654 Class a amplifier with a digitally programmable miller compensation network |
| 03/02/1999 | US5877653 Linear power amplifier and method for removing intermodulation distortion with predistortion system and feed forward system |
| 03/02/1999 | US5877649 Circuit arrangement for setting the operating point |
| 03/02/1999 | US5877643 Phase shift amplifier and its applications to a recombining circuit |
| 03/02/1999 | US5877642 Latch circuit for receiving small amplitude signals |
| 02/25/1999 | DE19826855A1 Tone generator system, e.g. loudspeaker, in portable casing |
| 02/24/1999 | EP0702856B1 Methods and apparatus for connecting and conditioning audio signals |
| 02/24/1999 | CN1208991A Reference voltage generating circuit of generating plurality of reference voltages |
| 02/24/1999 | CN1208989A High efficiency RF amplifier |
| 02/24/1999 | CN1208933A Input interface level determiner for use in memory device |
| 02/24/1999 | CN1208857A Semiconductor device |
| 02/23/1999 | US5875250 For multiple channel selection of power output levels |
| 02/23/1999 | US5875126 Autozeroing floating gate amplifier |
| 02/23/1999 | US5875049 Amplifier for burst signal and optical receiving circuit |
| 02/23/1999 | US5874861 Amplifier circuit |
| 02/23/1999 | US5874860 High frequency amplifier and control |
| 02/23/1999 | US5874859 High-frequency amplifier integrated-circuit device |
| 02/23/1999 | US5874858 Amplifier system having a constant current regulating unit |
| 02/23/1999 | US5874857 Amplifier stage with dB-linear output voltage |
| 02/23/1999 | US5874852 Current generator circuit having a wide frequency response |
| 02/23/1999 | US5874840 Differential source follower with body effect compensation |
| 02/23/1999 | CA2009476C Differential amplifier using voltage level shifting to achieve rail-to-rail input capability at very low power supply voltage |
| 02/18/1999 | WO1999008379A1 Class d amplifier with switching control |
| 02/18/1999 | WO1999008378A2 Device for amplifying digital signals |
| 02/18/1999 | WO1999008377A1 Device for transforming into voltage signals weak electric currents impressed by a non-ideal electric current source at the inlet of same device |
| 02/18/1999 | DE19743272C1 Offset compensation arrangement for mixer |
| 02/18/1999 | CA2299333A1 Class d amplifier with switching control |
| 02/17/1999 | EP0897214A2 Ultra-low noise high bandwidth interface circuit for singlephoton readout of photodetectors |
| 02/17/1999 | EP0897143A2 Band gap reference voltage source and method for its operation |
| 02/17/1999 | EP0896716A1 Pwm/linear driver for disk drive voice coil actuator |
| 02/17/1999 | CN1208283A Method and apparatus for amplifying signal |
| 02/17/1999 | CN1208276A Constant current circuit with small output current fluctuation |
| 02/16/1999 | US5872811 Data network |
| 02/16/1999 | US5872485 Dielectric line waveguide which forms electronic circuits |
| 02/16/1999 | US5872484 High performance current output amplifier for CCD image sensors |
| 02/16/1999 | US5872483 Hyperbolic sine and cosine functional circuits, squaring circuit, and OTA consisting of two differential circuits with a dynamic bias current |
| 02/16/1999 | US5872482 Amplifier circuit having a pair of differential transistors with differing threshold values for perform offset compensation |
| 02/16/1999 | US5872481 Efficient parallel-stage power amplifier |
| 02/11/1999 | WO1999007067A1 Offset adjustment of cmos matched pairs with body voltage |
| 02/11/1999 | DE19734045A1 Power amplifier for high-output voltages and currents especially for inductive loads such as medical nuclear-spin tomographs |
| 02/10/1999 | EP0896445A2 Method and apparatus for correction of optical signals distorted by optical interference |
| 02/10/1999 | EP0706715A4 Electrical charge transfer apparatus |
| 02/09/1999 | US5869999 Open loop pre-amplifier for an electronic measuring system |
| 02/09/1999 | US5869995 Output stage having a high disabled output impedance and a low power integrated back buffer to provide disabled output device protection |
| 02/09/1999 | US5869993 Distortion compensation for a capacitively loaded follower |
| 02/09/1999 | US5869989 Amplifying electronic circuit with stable idling current |
| 02/05/1999 | CA2241995A1 Method and facility for equalizing an electric signal distorted due to interference in the optical domain |