| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 12/11/2008 | US20080303595 Amplifying circuit |
| 12/11/2008 | US20080303594 Amplifier Circuit |
| 12/11/2008 | US20080303593 Mugfet circuit for increasing output resistance |
| 12/11/2008 | US20080303592 Differential amplifier circuit and A/D converter |
| 12/11/2008 | US20080303591 Amplifying circuit and associated linearity improving method |
| 12/11/2008 | US20080303590 Power amplifier with noise shaping function |
| 12/10/2008 | EP2001128A1 Class-F power amplifier circuit |
| 12/10/2008 | EP1999921A2 Frequency limiting amplifier in a fsk receiver |
| 12/10/2008 | EP1751850B1 Plop noise avoidance for an amplifier |
| 12/10/2008 | EP1472640B1 An electronic circuit for converting a current signal to a voltage signal |
| 12/10/2008 | EP1417753B1 Auto-zeroed ping-pong amplifier with low transient switching |
| 12/10/2008 | CN101320963A Power amplifier |
| 12/10/2008 | CN101320962A Amplifier circuit, digital-to-analog conversion circuit, and display device |
| 12/10/2008 | CN101320961A Power amplification circuit |
| 12/10/2008 | CN101320959A Power control and modulation of switched-mode power amplifiers with one or more stages |
| 12/10/2008 | CN100442657C Programme-controlled gain charge amplifier based on computer system bus |
| 12/10/2008 | CN100442656C Low-noise amplifier |
| 12/10/2008 | CN100442344C Driver circuit |
| 12/09/2008 | US7463876 Communication semiconductor integrated circuit, communication electronic component and wireless communication system |
| 12/09/2008 | US7463869 Low noise high isolation transmit buffer gain control mechanism |
| 12/09/2008 | US7463868 Adaptive radio transceiver with offset PLL with subsampling mixers |
| 12/09/2008 | US7463742 Signal output circuit |
| 12/09/2008 | US7463236 Driver circuit |
| 12/09/2008 | US7463172 Signal processing device and method, signal processing program, and recording medium where the program is recorded |
| 12/09/2008 | US7463095 Method and apparatus for an LNA with high linearity and improved gain control |
| 12/09/2008 | US7463094 Linearized class AB biased differential input stage |
| 12/09/2008 | US7463093 Variable gain amplifier |
| 12/09/2008 | US7463090 Driving device |
| 12/09/2008 | US7463089 Class D audio power amplifier for mobile applications |
| 12/09/2008 | US7463088 PWM digital amplifier with high-order loop filter |
| 12/04/2008 | WO2008148094A1 Micropower neural amplifier with adaptive input-referred noise |
| 12/04/2008 | WO2008147980A2 Multi-mode audio amplifiers |
| 12/04/2008 | WO2008147932A2 Reconfigurable tunable rf power amplifier |
| 12/04/2008 | WO2008147646A1 Polar amplifier |
| 12/04/2008 | WO2008146450A1 Analog input device |
| 12/04/2008 | WO2008146354A1 Power amplifier |
| 12/04/2008 | WO2008146256A2 Integrated-circuit low-noise amplifier |
| 12/04/2008 | WO2008145604A1 Configurable, variable gain lna for multi-band rf receiver |
| 12/04/2008 | US20080299916 Low noise rf driver |
| 12/04/2008 | US20080299914 Electronic component for communication device and semiconductor device for switching transmission and reception |
| 12/04/2008 | US20080297261 Circuits and Methods for Implementing Transformer-Coupled Amplifiers at Millimeter Wave Frequencies |
| 12/04/2008 | US20080297259 Configurable, Variable Gain LNA for Multi-Band RF Receiver |
| 12/04/2008 | US20080297255 Receiver Comprising an Amplifier |
| 12/04/2008 | US20080297254 Class ab amplifier |
| 12/04/2008 | US20080297253 Single-Ended Gain Stage And Disk Drive |
| 12/04/2008 | US20080297252 Differential signal generator circuit |
| 12/04/2008 | US20080297251 Digitally adjusted variable gain amplifier (vga) using switchable differential pairs |
| 12/04/2008 | US20080297250 Integrated circuit system for controlling amplifier gain |
| 12/04/2008 | US20080297249 Cmos amplifiers with frequency compensating capacitors |
| 12/04/2008 | US20080297248 Class d amplifier circuit with bi-directional power switch |
| 12/04/2008 | US20080297245 Delay modulator pre-distortion circuit for an amplifier |
| 12/04/2008 | US20080297244 PWM Loop Filter with Minimum Aliasing Error |
| 12/04/2008 | DE102008026115A1 Impulsbreitenmodulator, welcher einen Interpolator verwendet Pulse width modulator, which uses an interpolator |
| 12/04/2008 | DE102008024987A1 Impedanzwandler für einen Verstärker und Verstärker mit einem solchen Impedanzwandler Impedance converter for an amplifier and amplifier with such impedance converter |
| 12/04/2008 | DE102008022950A1 Verstärkeranordnung mit mehreren Betriebsarten und Verfahren zum Steuern einer Verstärkeranordnung An amplifier arrangement comprising a plurality of modes and method for controlling an amplifier arrangement |
| 12/03/2008 | EP1998439A1 Analog circuit |
| 12/03/2008 | EP1998438A1 Differential circuit, amplifier circuit, driver circuit and display device using those circuits |
| 12/03/2008 | EP1997223A1 Amplification stage |
| 12/03/2008 | EP1702405B1 Single chip power amplifier and envelope modulator |
| 12/03/2008 | EP0581835B3 Circuit for controllable amplifier |
| 12/03/2008 | CN101317334A Low noise amplifier |
| 12/03/2008 | CN101317327A Amplifier |
| 12/03/2008 | CN101316114A Spread-spectrum modulation circuit, variable frequency triangular-wave generator and signal processing method |
| 12/03/2008 | CN100440729C Method and apparatus for reducing transmitter peak power requirements using dual matrices |
| 12/03/2008 | CN100440728C Integrated power amplifier |
| 12/03/2008 | CN100440727C Distortion compensation device |
| 12/03/2008 | CN100440725C Power amplifiers |
| 12/02/2008 | US7459982 EMI reduction stage in a post-amplifier |
| 12/02/2008 | US7459981 Circuits and methods for implementing transformer-coupled amplifiers at millimeter wave frequencies |
| 12/02/2008 | US7459980 Apparatus for receiver equalization |
| 12/02/2008 | US7459979 Semiconductor indicator for voltage diagnostics in power amplifiers |
| 12/02/2008 | US7459978 Ground skimming output stage |
| 12/02/2008 | US7459977 Signal transfer circuit and circuit device using same |
| 12/02/2008 | US7459976 Apparatus and method for biasing cascode devices in a differential pair using the input, output, or other nodes in the circuit |
| 12/02/2008 | US7459975 Baseband filter start-up circuit |
| 12/02/2008 | US7459974 System and method for distortion cancellation in amplifiers |
| 12/02/2008 | US7459973 Method and apparatus for amplifying a signal modulated in amplitude |
| 12/02/2008 | US7459968 Audio power amplifier IC and audio system provided with the same |
| 12/02/2008 | US7459963 Filter apparatus including differential slave gm-C filter with frequency characteristics automatically tuned by master circuit |
| 12/02/2008 | US7459947 Radio frequency doubler |
| 12/02/2008 | US7459667 Active pixel image sensor with common gate amplifier mode |
| 11/27/2008 | WO2008144722A2 Class ab output stage and method for providing wide supply voltage range |
| 11/27/2008 | WO2008144649A1 Linear transimpedance amplifier with multiplexed gain stage |
| 11/27/2008 | WO2008144327A1 Differential amplifier with multiple signal gains and wide dynamic range |
| 11/27/2008 | WO2008144134A1 Output circuits with class d amplifier |
| 11/27/2008 | WO2008143174A1 Wide-range low-noise amplifier |
| 11/27/2008 | WO2008142797A1 Bias circuit and amplifier using same |
| 11/27/2008 | WO2008142649A1 Power supply comprising a plurality of current controlled voltage sources that can be switched on and off |
| 11/27/2008 | WO2008142051A2 Switchable multiband lna design |
| 11/27/2008 | WO2008110987A3 A data processing system for clipping correction |
| 11/27/2008 | WO2008107210A3 Electronic circuit for the transmission of high-frequency signals |
| 11/27/2008 | WO2007098394A3 Multiplier-transimpedance amplifier combination with input common mode feedback |
| 11/27/2008 | US20080292123 Modular charger for hearing aid |
| 11/27/2008 | US20080290952 Dvd Reading Apparatus |
| 11/27/2008 | US20080290950 Semiconductor integrated circuit |
| 11/27/2008 | US20080290949 Apparatus and method for asymmetric charge pump for an audio amplifier |
| 11/27/2008 | US20080290948 Impedance transformer for amplifier and amplifier including the same |
| 11/27/2008 | US20080290946 Semiconductor integrated circuit device |
| 11/27/2008 | US20080290945 Class ab output stage and method for providing wide supply voltage range |
| 11/27/2008 | US20080290944 Micropower neural amplifier with adaptive input-referred noise |