| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 09/10/2008 | EP1320927B1 Power amplification for parametric loudspeakers |
| 09/10/2008 | EP1275200B1 Method and apparatus for dynamic sound optimization |
| 09/10/2008 | CN201114767Y Small-diameter and small power multi-unit sound recovery system |
| 09/10/2008 | CN201114164Y Ultralinear multi- carrier amplifier and multi- carrier multiplication system |
| 09/10/2008 | CN201113927Y Device for quickly responding to switch power amplifier |
| 09/10/2008 | CN101262457A A time division duplex linear power amplification module with digital pre-distortion technology |
| 09/10/2008 | CN101262262A Power amplifier circuit, control method thereof and control program thereof |
| 09/10/2008 | CN101262226A Delta sigma-type AD converter, class-D amplifier, and DC-DC converter |
| 09/10/2008 | CN101262207A Rail-to-rail amplifier circuit and semiconductor device |
| 09/10/2008 | CN101262206A Amplifier circuit |
| 09/10/2008 | CN101262205A Predistortion with asymmetric usage of available bandwidth |
| 09/10/2008 | CN101261282A Intelligent piezoelectric type acceleration sensor |
| 09/10/2008 | CN100418384C Multi-carrier base station amplifier |
| 09/10/2008 | CN100418304C Transmission device and adjustment method thereof |
| 09/10/2008 | CN100418301C Integrator of power supply by AC power supply in switch condenser circuit |
| 09/09/2008 | US7424276 Transmitter and wireless communication apparatus using the transmitter |
| 09/09/2008 | US7424120 Method and apparatus for volume control |
| 09/09/2008 | US7423698 Amplifier for amplifying input signal such as video signal and outputting amplified signal |
| 09/09/2008 | US7423491 Semiconductor amplifier |
| 09/09/2008 | US7423490 Wideband high frequency chokes |
| 09/09/2008 | US7423488 System and method for compensating for the effects of aging and temperature on transistor performance |
| 09/09/2008 | US7423486 Silicon-on-insulator differential amplifier circuit |
| 09/09/2008 | US7423485 Differential circuit with improved linearity |
| 09/09/2008 | US7423483 Increasing amplifier bandwidth by positive capacitive feedback |
| 09/09/2008 | US7423250 Systems, circuits and methods for extending the detection range of an inspection system by avoiding circuit saturation |
| 09/04/2008 | WO2008106331A1 Dual input low noise amplifier for multi-band operation |
| 09/04/2008 | WO2008105592A1 Switching amplification driver for reducing starting noise and audio amplifier including the same |
| 09/04/2008 | WO2008105409A1 Wireless communication device |
| 09/04/2008 | WO2008105257A1 High-frequency circuit |
| 09/04/2008 | WO2008105073A1 Transmitter |
| 09/04/2008 | WO2008105072A1 Transmitter |
| 09/04/2008 | WO2008073467A3 Network devices with solid state transformer that provides termination of open-drain transmit drivers of a physical layer module |
| 09/04/2008 | US20080211594 Multi-Channel Pulse Modulator System |
| 09/04/2008 | US20080211587 Method and Apparatus for Increasing the Efficiency of Low Power Amplifier |
| 09/04/2008 | US20080211586 Dual input low noise amplifier for multi-band operation |
| 09/04/2008 | US20080211585 Adaptive Protection Circuit For a Power Amplifier |
| 09/04/2008 | US20080211584 Cross-differential amplifier |
| 09/04/2008 | US20080211583 System and method for dynamic drain voltage adjustment to control linearity, output power, and efficiency in rf power amplifiers |
| 09/04/2008 | US20080211581 Amplifier circuit with internal zeros |
| 09/04/2008 | US20080211580 Low noise ac differential amplifier with reduced low corner frequency and current consumption |
| 09/04/2008 | US20080211579 Method and apparatus for optimizing power dissipation in a low noise amplifier |
| 09/04/2008 | US20080211578 Delta Sigma-Type AD converter, class-D amplifier, and DC-DC converter |
| 09/04/2008 | US20080211577 Audio power amplifier using virtual ground and method of processing signal in the audio power amplifier |
| 09/04/2008 | DE10232346B4 Schaltungsanordnung und Verfahren zur Datensignalreproduktion Circuit arrangement and method for data signal reproduction |
| 09/04/2008 | CA2781646A1 Sps receiver with adjustable linearity |
| 09/03/2008 | EP1965496A2 Delta-sigma type ad converter, class-d amplifier, and dc-dc coverter |
| 09/03/2008 | EP1693955B1 Dynamic bias for RF power amplifiers |
| 09/03/2008 | EP1639699B1 Output power detection circuit |
| 09/03/2008 | EP1356447A4 Drive circuit for liquid crystal displays and method therefor |
| 09/03/2008 | EP1352466B1 A fully differential, variable-gain amplifier and a multidimensional amplifier arrangement |
| 09/03/2008 | EP0885483B1 Push-pull power amplifier |
| 09/03/2008 | CN201110939Y Digital cine projector |
| 09/03/2008 | CN101258675A Device comprising a feedback-less gain controlled amplifier |
| 09/03/2008 | CN101258674A Origami cascaded topology for analog and mixed-signal applications |
| 09/03/2008 | CN101257291A Trapezoid exciting pulse generating method and device |
| 09/03/2008 | CN101257284A Semiconductor device |
| 09/03/2008 | CN101256756A Power source circuit, display driver, electro-optic device and electronic apparatus |
| 09/03/2008 | CN101256755A Driver circuit |
| 09/03/2008 | CN100417018C Method and apparatus for reducing transmitter peak power requirements |
| 09/03/2008 | CN100417017C Asynchronous bridging load of D-class audio amplifier |
| 09/02/2008 | US7421254 High linearity, high efficiency power amplifier with DSP assisted linearity optimization |
| 09/02/2008 | US7420425 Power amplifier and method thereof |
| 09/02/2008 | US7420424 Power amplifier transmission line transformer |
| 09/02/2008 | US7420423 Active balun device |
| 09/02/2008 | US7420422 Audio amplifier driven by single voltage source and related voltage supply circuit |
| 09/02/2008 | US7420421 Open-loop RF transmitter output power control for increased power efficiency |
| 09/02/2008 | US7420420 FET bias circuit |
| 09/02/2008 | US7420419 Variable gain voltage/current converter circuit having current compensation circuit for compensating for change in DC current flowing into active element for performing voltage/current conversion |
| 09/02/2008 | US7420418 Circuit for improving amplification and noise characteristics for MOSFET, and frequency mixer, amplifier and oscillator using the circuit |
| 09/02/2008 | US7420417 Two-port dual-gate HEMT for discrete device application |
| 09/02/2008 | US7420413 Amplifier circuit of BTL system |
| 09/02/2008 | US7420411 Voltage control circuit and method for supplying an electrical component with a supply voltage |
| 08/28/2008 | WO2008103757A1 Amplifier with integrated filter |
| 08/28/2008 | WO2008103257A1 Sample and hold circuits with offset removal |
| 08/28/2008 | WO2008103165A2 Fully differential amplifier with continuous-time offset reduction |
| 08/28/2008 | WO2008103086A1 Balanced amplifying device having a bypass branch |
| 08/28/2008 | WO2008102869A1 Transmission control method for wireless communication apparatus, and wireless communication apparatus |
| 08/28/2008 | WO2008102819A1 Electronic circuit and communication system |
| 08/28/2008 | WO2008101548A1 Level shift circuit |
| 08/28/2008 | WO2008081246A3 Phase and power calibration in active antennas |
| 08/28/2008 | WO2008075318A3 Error correction system for a class-d power stage |
| 08/28/2008 | WO2008043098A3 System and method for on-chip im3 reduction over a broad range of operating powers |
| 08/28/2008 | US20080207145 Transmitter |
| 08/28/2008 | US20080205906 Preamplifier and optical receiving apparatus using the same |
| 08/28/2008 | US20080205897 Linearized trans-impedance amplifier |
| 08/28/2008 | US20080204567 Sample and hold circuits with buffer offset removed |
| 08/28/2008 | US20080204149 Cryogenic receiving amplifier and amplifying mehtod |
| 08/28/2008 | US20080204148 Amplifier with integrated filter |
| 08/28/2008 | US20080204147 Method and System for Power Amplifier (PA) With On-Package Matching Transformer |
| 08/28/2008 | US20080204146 Wireless Communication Unit, Integrated Circuit and Biasing Therefor |
| 08/28/2008 | US20080204142 Low noise amplifier |
| 08/28/2008 | US20080204141 Radio-Frequency Amplifier System |
| 08/28/2008 | US20080204140 Compound semiconductor device and doherty amplifier using compound semiconductor device |
| 08/28/2008 | US20080204139 Reconfigurable distributed active transformers |
| 08/28/2008 | US20080204138 Fully differential amplifier with continuous-time offset reduction |
| 08/28/2008 | US20080204137 Design structure for a serial link output stage differential amplifier |
| 08/28/2008 | US20080204134 Power combiner |
| 08/28/2008 | US20080204133 Circuits and apparatus to reduce transient output noise in an audio amplifier |
| 08/28/2008 | US20080204132 Class-D Amplifier |
| 08/27/2008 | EP1962419A2 Class D amplifier |