| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 03/14/2006 | US7012237 Modulated laser light detector |
| 03/09/2006 | WO2006025417A1 Balanced output circuit and electronic device using the same |
| 03/09/2006 | US20060052068 Communications signal amplifiers having independent power control and amplitude modulation |
| 03/09/2006 | US20060050585 Device for setting up a write current in an MRAM type memory and memory comprising |
| 03/09/2006 | US20060049877 High frequency amplifier in an integrated circuit |
| 03/09/2006 | US20060049876 Active circuit having improved linearity using multiple gated transistor |
| 03/09/2006 | US20060049874 Differential power amplifier and method in class AB mode |
| 03/09/2006 | US20060049873 Rail-to-rail differential input amplification stage with main and surrogate differential pairs |
| 03/09/2006 | US20060049872 Non-match power amplifier and method for increased output 1 dB compression point |
| 03/09/2006 | US20060049871 Multi-stage output buffer |
| 03/09/2006 | US20060049869 Digital amplifier and methods for enhancing resolution and dynamic range of a digital amplifier |
| 03/09/2006 | US20060049852 Sense amplifier with low common mode differential input signal |
| 03/09/2006 | US20060049337 Optoelectronic sensor |
| 03/09/2006 | US20060049336 Semiconductor optical amplifier device amplifying an externally applied light signal, semiconductor optical amplification driving device and semiconductor light receiving apparatus |
| 03/09/2006 | DE10393380T5 5.1-Tonkanal-Digital-Raumklang-Kopfhörer 5.1 audio channel digital surround sound headphones |
| 03/08/2006 | EP1633041A2 Active circuit having improved linearity using common gate transistors |
| 03/08/2006 | EP1632073A1 Method and system for switching mode power amplification |
| 03/08/2006 | EP1632035A1 Multiband mixer |
| 03/08/2006 | EP1632025A1 Improved load and line regulation using operational transconductance amplifier and operational amplifier in tandem |
| 03/08/2006 | EP1632024A2 Global loop integrating modulator |
| 03/08/2006 | EP1632023A1 Low distortsion class-d amplifier using carrier reference signal symmetry modulation |
| 03/08/2006 | EP1632022A1 Output power control for a switching mode power amplifier |
| 03/08/2006 | EP1593203A4 Modulation of a digital input signal using a digital signal modulator and signal splitting |
| 03/08/2006 | EP1573907A4 Delay mismatched feed forward amplifier system using penalties and floors for control |
| 03/08/2006 | EP1474865A4 Deed forward rf power amplifier with high efficiency main amplifier and highly linear error amplifier |
| 03/08/2006 | EP1346466B1 Modulator using class-e stage |
| 03/08/2006 | CN1744429A Power amplifier with dynamic sychronous voltage bias circuit for removing cross-over distortion |
| 03/08/2006 | CN1244986C Driving circuit |
| 03/08/2006 | CN1244982C Thermally distributed darlington amplifier |
| 03/07/2006 | US7010284 Wireless communications device including power detector circuit coupled to sample signal at interior node of amplifier |
| 03/07/2006 | US7010282 Dynamic bias for RF power amplifiers |
| 03/07/2006 | US7010276 Communications signal amplifiers having independent power control and amplitude modulation |
| 03/07/2006 | US7010271 Circuits and methods for reducing interference from switched mode circuits |
| 03/07/2006 | US7010131 Quasi-differential power amplifier and method |
| 03/07/2006 | US7009455 Tunable power amplifier matching circuit |
| 03/07/2006 | US7009454 Method and apparatus for optimization of amplifier with adjustable output range |
| 03/07/2006 | US7009453 Bias current supply circuit and amplification circuit |
| 03/07/2006 | US7009452 Method and apparatus for increasing the linearity and bandwidth of an amplifier |
| 03/07/2006 | US7009451 Image display apparatus and high voltage driver circuit |
| 03/07/2006 | US7009450 Low distortion and high slew rate output stage for voltage feedback amplifier |
| 03/07/2006 | US7009449 Adjustable gain amplifier arrangement with relaxed manufacturing constraints |
| 03/07/2006 | US7009448 Operational amplifier circuit, sample/hold circuit and filter circuit using the operational amplifier circuit |
| 03/02/2006 | WO2005110044A3 Dual-band cmos front-end with two gain modes |
| 03/02/2006 | US20060046666 Transmission device, transmission output control method, and radio communication device |
| 03/02/2006 | US20060044989 Arrangement for reading an information carrier |
| 03/02/2006 | US20060044167 Analog signal interpolation |
| 03/02/2006 | US20060044070 Signal determining apparatus including amplifier circuit with variable response speed |
| 03/02/2006 | US20060044069 Single-ended pseudo-differential output driver |
| 03/02/2006 | US20060044068 Bipolar differential to single ended transfer circuit with gain boost |
| 03/02/2006 | US20060044067 High-frequency power amplifier |
| 03/02/2006 | US20060044064 Low noise amplifier |
| 03/02/2006 | US20060044063 Amplifier system and method |
| 03/02/2006 | US20060044062 Amplifying device |
| 03/02/2006 | US20060044061 Analog delay chain having more uniformly distributed capacitive loads and analog delay cell for use in chain |
| 03/02/2006 | US20060044060 Circuit for parallel operation of Doherty amplifiers |
| 03/02/2006 | US20060044058 Method and circuit for facilitating control of AC coupling in an amplifier circuit |
| 03/02/2006 | US20060044057 Class-D amplifier having high order loop filtering |
| 03/01/2006 | EP1630962A1 Digital differential amplification control device |
| 03/01/2006 | EP1630954A1 A feedback circuit |
| 03/01/2006 | EP1630953A2 Method and apparatus for addressing receive-band noise problems associated with the use of a digital power amplifier |
| 03/01/2006 | EP1630952A2 Signal determining apparatus including amplifier circuit with variable response speed |
| 03/01/2006 | EP1629594A1 Improvements in or relating to transconductor circuits |
| 03/01/2006 | EP1466399B1 Isolated converter with synchronized switching leg |
| 03/01/2006 | EP1436764B1 Amplifier modulation |
| 03/01/2006 | CN1742429A Device and method for digital pulsewidth modulation |
| 03/01/2006 | CN1742428A High efficiency power amplification apparatus with multiple power mode |
| 03/01/2006 | CN1741388A Method and apparatus for correcting central frequency of power amplifier |
| 03/01/2006 | CN1741373A Circuit for parallel operation of doherty amplifiers |
| 03/01/2006 | CN1741370A An amplifier apparatus and method |
| 03/01/2006 | CN1244256C Power source equipment |
| 03/01/2006 | CN1244197C Controlled self-oscillation modulator and power conversion system using such a modulator |
| 03/01/2006 | CN1244150C Semiconductor integrated circuit |
| 02/28/2006 | US7006803 Power amplification circuit for communication device |
| 02/28/2006 | US7006643 Differential audio amplification system |
| 02/28/2006 | US7006580 Method for controlling a data transmission pre-emphasis unit and a data transmission system employing the method |
| 02/28/2006 | US7006543 System and circuit for a multi-channel optoelectronic device driver |
| 02/28/2006 | US7006423 Mark detecting circuit for an optical disk |
| 02/28/2006 | US7006159 Adapter circuit for audio and video signals |
| 02/28/2006 | US7006070 Operational amplifier circuit, driving circuit, and driving method |
| 02/28/2006 | US7005923 Adaptive bias circuit for a power amplifier |
| 02/28/2006 | US7005921 Common-mode feedback circuit |
| 02/28/2006 | US7005920 Programmable passive inductor |
| 02/28/2006 | US7005919 Even order distortion elimination in push-pull or differential amplifiers and circuits |
| 02/28/2006 | US7005918 Current-to-voltage converting apparatus and impedance measuring apparatus |
| 02/28/2006 | US7005917 Power supply rejection technique for switching amplifier |
| 02/28/2006 | US7005916 Amplifier circuit, driving circuit of display apparatus, portable telephone and portable electronic apparatus |
| 02/28/2006 | US7005915 Series bridge circuit with amplifiers |
| 02/28/2006 | US7005902 Charge pump including a feedback device for use in a phase-locked loop |
| 02/28/2006 | US7005895 Driver circuit with frequency-dependent signal feedback |
| 02/28/2006 | US7005838 Voltage generation circuit |
| 02/28/2006 | US7005721 RF passive circuit and RF amplifier with via-holes |
| 02/23/2006 | WO2006020236A2 Methods and apparatus for variable harmonic distortion |
| 02/23/2006 | WO2006019785A2 Programmable low noise amplifier and method |
| 02/23/2006 | WO2006018784A2 High accuracy power detector for handset applications |
| 02/23/2006 | WO2006018750A1 Dual mode audio amplifier |
| 02/23/2006 | US20060040624 Peak power limitation in an amplifier pooling scenario |
| 02/23/2006 | US20060039572 Apparatus and method to limit current of an audio amplifier |
| 02/23/2006 | US20060038619 Differential amplifier circuit, operational amplifier circuit, light-receiving amplifier circuit using the same, function selection circuit, and light-receiving circuit using the same |
| 02/23/2006 | US20060038618 Precision current mirror and method for voltage to current conversion in low voltage applications |
| 02/23/2006 | US20060038616 Apparatus and method for controlling operation of an amplifier device when supply voltage varies |