| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 12/23/2004 | WO2004079896A3 Multi-output amplifier with isolation between outputs |
| 12/23/2004 | WO2004075396A3 Darlington cascode |
| 12/23/2004 | WO2004059850A3 Apparatus and method for safely handling asynchronous shutdown of pulsewidth modulated output |
| 12/23/2004 | US20040261121 Distributed gain network |
| 12/23/2004 | US20040260416 Audio amplifier local interface system |
| 12/23/2004 | US20040258419 Method and apparatus for optical signaling |
| 12/23/2004 | US20040258256 Amplifier circuit with negative feedback |
| 12/23/2004 | US20040257963 Low voltage differential signal transmitting circuit and optical disc recording apparatus |
| 12/23/2004 | US20040257160 Class ab operational amplifier with split folded-cascode structure and method |
| 12/23/2004 | US20040257159 Apparatus for a differential self-biasing CMOS amplifier |
| 12/23/2004 | US20040257158 Vacuum tube amplifier |
| 12/23/2004 | US20040257156 Low distortion power amplifier and method of controlling a multi-channel power amplifier |
| 12/23/2004 | US20040257155 Optically isolated bias control circuit |
| 12/23/2004 | US20040257154 Circuit and semiconductor device |
| 12/23/2004 | US20040257127 Output signal control from a dac-driven amplifier-based driver |
| 12/23/2004 | US20040257119 Signal detection apparatus, signal detection method, signal transmission system, and computer readable program to execute signal transmission |
| 12/23/2004 | US20040257093 Narrow-band amplifier and impedance-measuring apparatus |
| 12/23/2004 | US20040256636 Drive circuit |
| 12/23/2004 | DE10321442A1 Driver circuit especially for power amplifiers of high bandwidth has drive stage with a support circuit and current reduction system in case of a fault |
| 12/22/2004 | EP1489739A2 Circuit and semiconductor device |
| 12/22/2004 | EP1488549A2 Optical fiber receiver having an increased bandwidth |
| 12/22/2004 | EP1488541A1 Apparatus, and associated method, for communication system utilizing space-generated multilevel coding |
| 12/22/2004 | EP1488524A2 Floating-gate analog circuit |
| 12/22/2004 | EP1488516A2 Differential inverter circuit |
| 12/22/2004 | EP1488510A2 A-ab transconductor |
| 12/22/2004 | EP1391046A4 Non-linear transistor circuits with thermal stability |
| 12/22/2004 | EP1238456A4 Improved floating, balanced output circuit |
| 12/22/2004 | EP1064722B1 Buffer circuit |
| 12/22/2004 | EP0954904A4 Zero-delay slew-rate controlled output buffer |
| 12/22/2004 | EP0759230B1 Cmos programmable resistor-based transconductor |
| 12/22/2004 | CN2665987Y USB power amplification loudspeaker connecting device |
| 12/22/2004 | CN1557047A Analog buffer circuit, display device and mobile terminal |
| 12/22/2004 | CN1556586A Quasi push-pull source pole fllower |
| 12/22/2004 | CN1556585A Output stage circuit of power amplifier |
| 12/22/2004 | CN1181547C Semiconductor IC |
| 12/21/2004 | US6833820 Tunable monopole antenna |
| 12/21/2004 | US6833771 High efficiency amplifier with amplifier element, radio transmission device therewith and measuring device therefor |
| 12/21/2004 | US6833762 Transimpedance ampifier |
| 12/21/2004 | US6833761 Amplifier apparatus and method thereof |
| 12/21/2004 | US6833760 Low power differential amplifier powered by multiple unequal power supply voltages |
| 12/21/2004 | US6833759 System and method for a programmable gain amplifier |
| 12/21/2004 | US6833757 Method and system for improving amplifier efficiency |
| 12/21/2004 | US6833756 Input buffer amplifier with centroidal layout |
| 12/21/2004 | US6833739 Input buffer circuit for semiconductor device |
| 12/16/2004 | WO2004110004A1 Method and system for switching mode power amplification |
| 12/16/2004 | WO2004109943A1 Multiband mixer |
| 12/16/2004 | WO2004109919A1 Digital differential amplification control device |
| 12/16/2004 | WO2004109908A1 Amplification circuit |
| 12/16/2004 | WO2004109906A1 Amplifier using an analogue switch |
| 12/16/2004 | WO2004109905A1 Output power control for a switching mode power amplifier |
| 12/16/2004 | WO2004070941A3 Monolithic supply-modulated rf power amplifier and dc-dc power converter ic |
| 12/16/2004 | WO2003084057A8 Method of measuring microwave power and device for carrying out said method |
| 12/16/2004 | WO2003012982A8 Tuned damping circuit for power amplifier output |
| 12/16/2004 | US20040253938 Multiband mixer |
| 12/16/2004 | US20040253936 Power-controlled transmitter arrangement |
| 12/16/2004 | US20040253781 Semiconductor device, and display device and electronic device utilizing the same |
| 12/16/2004 | US20040251984 Apparatus and method to provide power amplification |
| 12/16/2004 | US20040251981 Contactless IC card system |
| 12/16/2004 | US20040251969 Method and apparatus for detecting interruption of an input signal with cancellation of offset level |
| 12/16/2004 | US20040251968 Method and apparatus for providing a stable power output of power amplifiers, operating under unstable supply voltage conditions |
| 12/16/2004 | US20040251967 High frequency amplifier circuit |
| 12/16/2004 | US20040251966 Bias circuit for improving linearity of a radio frequency power amplifier |
| 12/16/2004 | US20040251965 Differential amplifier with temperature compensating function |
| 12/16/2004 | US20040251962 Power control for a switching mode power amplifier |
| 12/16/2004 | US20040251960 Impedance matching low noise amplifier having a bypass switch |
| 12/16/2004 | US20040251947 Gain amplifier with DC offset cancellation circuit |
| 12/16/2004 | US20040251933 Apparatus for generating driving voltage for sense amplifier in a memory device |
| 12/16/2004 | US20040251403 Peak and bottom detectors in burst mode optical receiver |
| 12/15/2004 | EP1487101A1 Low distortion power amplifier and method of controlling a multi-channel power amplifier |
| 12/15/2004 | EP1487100A1 Multi-channel power amplifier with channels independently self-configuring bridge or single-ended output, particulary for audio applications |
| 12/15/2004 | EP1487099A2 Digital power amplifier |
| 12/15/2004 | EP1485998A2 Electronic circuit comprising an amplifier for amplifying a binary signal |
| 12/15/2004 | EP1485996A2 Reconfigurable distributed active transformers |
| 12/15/2004 | EP1485995A1 Front stage amplifier with different modes |
| 12/15/2004 | EP1485993A1 R.f. output power control |
| 12/15/2004 | EP1485943A2 On-chip ac coupled circuit |
| 12/15/2004 | CN1555517A Bias circuit for maintaining a constant value of transconductance divided by load capacitance |
| 12/14/2004 | US6831799 High bandwidth low noise cross-coupled amplifier |
| 12/14/2004 | US6831521 Method and apparatus for detecting interruption of an input signal with cancellation of offset level |
| 12/14/2004 | US6831518 Current steering circuit for amplifier |
| 12/14/2004 | US6831516 Method of forming a variable propagation delay semiconductor device and structure therefor |
| 12/14/2004 | US6831515 Slew rate enhancement circuit |
| 12/14/2004 | US6831514 Method of increasing output current capability of negative feedback amplifiers with output current limiting and freedom from thermal runaway |
| 12/14/2004 | US6831513 Differential amplifier |
| 12/14/2004 | US6831511 Distortion cancellation for RF amplifiers using complementary biasing circuitry |
| 12/14/2004 | US6831510 Continuous low-frequency error cancellation in a high-speed differential amplifier |
| 12/14/2004 | US6831509 Switching amplification apparatus |
| 12/14/2004 | US6831508 Switching power amplifier, and switching control method for a switching power amplifier |
| 12/14/2004 | US6831507 Transconductance amplifiers |
| 12/09/2004 | WO2004107565A1 Filterless class d amplifiers using spread spectrum pwm modulation |
| 12/09/2004 | WO2004107564A1 Efficient minimum pulse spread spectrum modulation for filterless class d amplifiers |
| 12/09/2004 | WO2004107563A2 High-efficiency amplifier, converter and methods |
| 12/09/2004 | WO2004107561A1 Voltage to current converter |
| 12/09/2004 | WO2004100357A3 Large gain-bandwith amplifier |
| 12/09/2004 | WO2004086606A3 Amplifier circuit |
| 12/09/2004 | US20040248529 Time-division-duplexing type power amplification module |
| 12/09/2004 | US20040247047 Electromagnetic wave transmitter systems, methods and articles of manufacture |
| 12/09/2004 | US20040247040 Electromagnetic wave transmitter systems, methods and articles of manufacture |
| 12/09/2004 | US20040246760 Amplification circuit |
| 12/09/2004 | US20040246060 Modulation system |