| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 10/25/2001 | US20010033185 High frequency differential receiver |
| 10/24/2001 | EP1148636A2 RF power amplifier system having distributed modulation encoding |
| 10/24/2001 | EP1148635A2 Apparatus and method for use in disconnecting and/or replacing one of a plurality of power amplifiers in a transmitter while the transmitter is operating |
| 10/24/2001 | EP1148633A1 High frequency circuit using high output amplifier cell block and low output amplifier cell block |
| 10/24/2001 | EP1148550A1 Radio frequency amplifier with small distortion and superior isolation |
| 10/24/2001 | EP1147601A1 Level shift circuit |
| 10/24/2001 | EP1147600A1 Noise reduction scheme for operational amplifiers |
| 10/24/2001 | EP1147599A1 Constant gain, constant phase rf power amplifier block |
| 10/24/2001 | EP0811271B1 Audio amplifier |
| 10/24/2001 | EP0761037B1 Differential amplifier with signal-dependent offset, and multi-step dual-residue analog-to-digital converter including such a differential amplifier |
| 10/24/2001 | EP0746903B1 Distortion compensation for a pulsewidth-modulated circuit |
| 10/24/2001 | CN1319277A Isolator with built-in power amplifier |
| 10/24/2001 | CN1318899A Phase inversino protection of operational amplifier |
| 10/24/2001 | CN1318898A High-frequency power amplifier with bipolar transistor |
| 10/24/2001 | CN1073761C AGC voltage correction circuit |
| 10/24/2001 | CN1073760C Offset-compensated linear RF detector |
| 10/23/2001 | US6307894 Power amplification using a direct-upconverting quadrature mixer topology |
| 10/23/2001 | US6307437 MOS load, pole compensation |
| 10/23/2001 | US6307434 Circuit for ensuring full saturation of amplifiers of a single input configured bridge amplifier |
| 10/23/2001 | US6307433 Preamplifier for high speed optical fiber communication system |
| 10/23/2001 | US6307432 Non-inverting feedback amplifier with high disabled impedance |
| 10/23/2001 | US6307431 PWM bridge amplifier with input network configurable for analog or digital input not needing a triangular wave generator |
| 10/23/2001 | US6307430 Noise reduction technique in chopper stabilized amplifier |
| 10/23/2001 | US6307405 Current sense amplifier and current comparator with hysteresis |
| 10/18/2001 | WO2001076346A2 High-gain, very wide common mode range, self biased operational amplifier |
| 10/18/2001 | WO2001024363A3 An integrated circuit having a filter with charge balancing scheme to reduce transient disturbances |
| 10/18/2001 | US20010030622 Data transmission driver device |
| 10/18/2001 | US20010030581 Bidirectional direct current power conversion circuits and methods |
| 10/18/2001 | US20010030579 Audio signal amplifier circuit and portable telephone set and portable electronic device using the same audio signal amplifier circuit |
| 10/18/2001 | US20010030578 Differential amplifier, semiconductor device, power supply circuit and electronic equipment using the same |
| 10/18/2001 | US20010030577 Method and system for improving amplifier efficiency |
| 10/18/2001 | US20010030574 Differential amplifier circuit |
| 10/18/2001 | US20010030529 Remote sensing by high-order filtering |
| 10/18/2001 | EP1145428A3 An integrated circuit having a filter with charge balancing scheme to reduce transient disturbances |
| 10/17/2001 | EP1146635A1 Power amplifier |
| 10/17/2001 | EP1145449A2 Hardware-efficient transceiver with delta-sigma digital-to-analog converter |
| 10/17/2001 | EP1145428A2 An integrated circuit having a filter with charge balancing scheme to reduce transient disturbances |
| 10/17/2001 | EP1145426A1 Data pulse receiver |
| 10/17/2001 | EP1145425A1 Amplifier |
| 10/17/2001 | EP1046282B1 Display driver apparatus |
| 10/17/2001 | EP0972340B1 Automatic volume control in an audio-signal reproduction facility, and device required |
| 10/17/2001 | EP0765543B1 Differential amplifier with common-mode rejection for low supply voltages |
| 10/17/2001 | CN1318226A Two-port with frequency-dependent network |
| 10/16/2001 | US6304144 Differential amplification circuit |
| 10/16/2001 | US6304143 Amplifier slew rate boosting scheme |
| 10/16/2001 | US6304141 Complementary input self-biased differential amplifier with gain compensation |
| 10/16/2001 | US6304138 Audio-frequency power amplifier that utilizes a bridged amplified configuration |
| 10/16/2001 | US6304137 Output stage for high power class D amplifiers |
| 10/16/2001 | US6304129 Compensation circuit and method for a power transistor |
| 10/16/2001 | US6304109 High gain CMOS amplifier |
| 10/16/2001 | US6304108 Reference-corrected ratiometric MOS current sensing circuit |
| 10/16/2001 | US6304070 Voltage/current converter circuit and high-gain amplifying circuit |
| 10/16/2001 | US6303922 Range-switching optical receiver with high sensitivity and wide dynamic range |
| 10/11/2001 | WO2001076169A1 Device for producing a phase and amplitude modulated radio frequency signal |
| 10/11/2001 | WO2001076069A1 Digital trim capacitor programming |
| 10/11/2001 | WO2001076066A1 High q structure |
| 10/11/2001 | WO2001076062A1 Electronic circuit for providing a desired common mode voltage to a differential output of an amplifier stage |
| 10/11/2001 | WO2001076061A1 High frequency switch-mode power amplifier |
| 10/11/2001 | WO2001076060A1 Power amplifier module |
| 10/11/2001 | WO2001075973A2 Combined transistor-capacitor structure in deep sub-micron cmos for power amplifiers |
| 10/11/2001 | US20010029168 High frequency circuit using high output amplifier cell block and low output amplifier cell block |
| 10/11/2001 | US20010028585 Integrated circuit with a differential amplifier |
| 10/11/2001 | US20010028274 CMOS current amplifier |
| 10/11/2001 | US20010028273 Amplifier device and LCD device |
| 10/11/2001 | US20010028272 RF communication system using an RF digital amplifier |
| 10/11/2001 | US20010028261 Driver circuit |
| 10/11/2001 | DE10017601A1 Switching arrangement to protect the output of an electrical amplifier uses comparator stage |
| 10/10/2001 | EP1143610A2 Operational amplifier phase reversal protection |
| 10/10/2001 | EP1143609A2 High frequency power amplifier having a bipolar transistor |
| 10/10/2001 | EP1142137A1 P |
| 10/10/2001 | EP1142136A1 Control of gain and power consumption in a power amplifier |
| 10/10/2001 | EP1142107A1 Active differential to single-ended converter |
| 10/10/2001 | EP1142106A1 Amplifier circuit |
| 10/10/2001 | EP1142105A1 Linearized amplifier core |
| 10/10/2001 | EP1142103A1 Circuits for preventing unwanted output transients in amplifiers during power-up |
| 10/10/2001 | EP0807330B1 Current one-shot circuit |
| 10/10/2001 | CN2453612Y Audio-frequency amplifier |
| 10/09/2001 | US6301467 Bias voltage controlled parallel active components |
| 10/09/2001 | US6301225 Configurable communication apparatus that permits use of unused multiplexer channels when operating in high power mode |
| 10/09/2001 | US6300836 High gain, wide band amplifier |
| 10/09/2001 | US6300835 Power amplifier core |
| 10/09/2001 | US6300834 High performance intermediate stage circuit for a rail-to-rail input/output CMOS operational amplifier |
| 10/09/2001 | US6300833 DC gain enhancement for operational amplifiers |
| 10/09/2001 | US6300832 Gain variable amplifier apparatus having improved gain control linearity characteristics |
| 10/09/2001 | US6300831 Compensating a Gm-boosted folded-cascode amplifier |
| 10/09/2001 | US6300830 Multiplexed input envelope restoration scheme for linear high-efficiency power amplification |
| 10/09/2001 | US6300829 RF power amplifier system having inductive steering |
| 10/09/2001 | US6300828 Switchless high efficiency amplifier |
| 10/09/2001 | US6300827 Method and apparatus for cascaded ground return amplifier |
| 10/09/2001 | US6300826 Apparatus and method for efficiently amplifying wideband envelope signals |
| 10/09/2001 | US6300825 PWM amplifier with feedback loop integrator |
| 10/09/2001 | US6300811 Differential amplifier |
| 10/09/2001 | US6300803 Phase-comparison circuit |
| 10/07/2001 | CA2343079A1 Rf power amplifier system having distributed modulation encoding |
| 10/07/2001 | CA2342417A1 Adaptive compensation for carrier signal phase |
| 10/04/2001 | WO2001074000A1 Low-power cdma receiver |
| 10/04/2001 | WO2001073975A1 Dynamic bias for rf power amplifiers |
| 10/04/2001 | WO2001073946A1 Antenna amplifier |
| 10/04/2001 | WO2001073944A1 Bipolar input stage circuit |
| 10/04/2001 | WO2001073943A1 Electronic output module |