| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
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| 05/18/2006 | US20060103471 Preamplifier |
| 05/18/2006 | US20060103467 Re-configurable amplifier protection apparatus and method |
| 05/18/2006 | US20060103462 Method and apparatus for opening a feedback loop |
| 05/17/2006 | EP1657814A1 Radio communication apparatus |
| 05/17/2006 | EP1656753A1 Transimpedance amplifier with receive signal strength indicator |
| 05/17/2006 | EP1656733A1 Integrated power amplifier circuit |
| 05/17/2006 | EP1520396A4 Even order distortion elimination in push-pull or differential amplifiers and circuits |
| 05/17/2006 | EP1382113A4 Amplifier |
| 05/17/2006 | CN1774857A Efficient modulation of RF signals |
| 05/17/2006 | CN1773850A DC bias cancel circuit |
| 05/17/2006 | CN1773844A Variable gain amplifier |
| 05/17/2006 | CN1256805C Reflection loss suppression circuit |
| 05/17/2006 | CN1256804C Voltage amplifying circuit |
| 05/16/2006 | US7047148 Indirect techniques for measuring 1/f noise |
| 05/16/2006 | US7046974 Radio frequency circuit and communication system with power amplifier control |
| 05/16/2006 | US7046973 Method and circuitry for high power amplifiers with voltage conversion to avoid performance degradation, system shutdown and permanent damage in case of worst case data pattern |
| 05/16/2006 | US7046972 Predistortion linearizer and predistortion distortion compensation method, program, and medium |
| 05/16/2006 | US7046971 Distortion-correcting circuit, integrated circuit, and radio communication device |
| 05/16/2006 | US7046814 Impedance adapter preamplifier device for electronic tube audio frequencies able to be inserted on line on the path of the low frequency signal |
| 05/16/2006 | US7046739 Pre-distortion of input signals to form constant envelope signal outputs |
| 05/16/2006 | US7046091 Power amplifier |
| 05/16/2006 | US7046090 Method and apparatus for dynamically regulating the supply voltage of a power amplifier |
| 05/16/2006 | US7046089 Variable gain amplifier |
| 05/16/2006 | US7046083 Efficient power control of a power amplifier by periphery switching |
| 05/16/2006 | US7046082 Electronic device having sound output module |
| 05/16/2006 | US7046081 Amplifier circuit with passive gain step circuit |
| 05/16/2006 | US7046080 Signal processing circuit |
| 05/16/2006 | US7045762 Photocurrent-to-voltage conversion apparatus including non-diode-connected clamping MOS transistor |
| 05/11/2006 | WO2006049873A1 Fet amplifier with adjustable degeneration resistance |
| 05/11/2006 | WO2006049800A2 Current limit circuit for power amplifiers |
| 05/11/2006 | WO2006049669A1 Signal configuration based transmitter adjustment in wireless communication devices |
| 05/11/2006 | WO2005027297A8 Hybrid switched mode/linear power amplifier power supply for use in polar transmitter |
| 05/11/2006 | US20060099751 Semiconductor integrated circuit and semiconductor integrated circuit manufacturing method |
| 05/11/2006 | US20060098757 Device and method for presdistoring and input signal |
| 05/11/2006 | US20060098617 Dual mode multi-slot EGPRS transmitter |
| 05/11/2006 | US20060097792 Variable gain amplifier |
| 05/11/2006 | US20060097791 Low offset rail-to-rail operational amplifier |
| 05/11/2006 | US20060097782 Amplifier with low pass filter feedback |
| 05/10/2006 | EP1654801A1 Integrated power amplifier circuit |
| 05/10/2006 | EP1236272B1 Linearisation of an amplifier |
| 05/10/2006 | EP0974191B1 Method and apparatus for spread spectrum pilot extraction for rf amplifiers |
| 05/10/2006 | CN1771658A Linear amplifier |
| 05/10/2006 | CN1770624A Low noise audio amplifier |
| 05/10/2006 | CN1770623A Method for high efficiency audio amplifier |
| 05/10/2006 | CN1770622A 放大器 Amplifier |
| 05/10/2006 | CN1770621A Differential amplifier circuit capable of reducing current consumption |
| 05/10/2006 | CN1255941C Feed-forward amplifier |
| 05/10/2006 | CN1255938C Linear power amplifying method and linear power amplifier |
| 05/10/2006 | CN1255937C A/D converter and its track feedback circuit and amplifying grade |
| 05/10/2006 | CN1255936C 功率放大器 PA |
| 05/09/2006 | US7043401 Multivariate data analysis method and uses thereof |
| 05/09/2006 | US7043313 Clock system capable of synchronizing clock frequencies of power processing devices and digital signal processing devices |
| 05/09/2006 | US7043213 Multi-mode amplifier system |
| 05/09/2006 | US7042936 Dynamic amplitude tilt equalizer |
| 05/09/2006 | US7042294 Power amplifier system |
| 05/09/2006 | US7042288 Charge amplifier for piezoelectric pressure sensor |
| 05/09/2006 | US7042287 System and method for reducing dynamic range and improving linearity in an amplication system |
| 05/09/2006 | US7042286 Signal correction techniques |
| 05/09/2006 | US7042284 Operational amplifier arrangement |
| 05/09/2006 | US7042283 High-efficiency linear power amplifier |
| 05/09/2006 | US7042282 Power control and modulation of switched-mode power amplifiers with one or more stages |
| 05/09/2006 | US7042228 Transducer in-situ testing apparatus and method |
| 05/09/2006 | CA2233269C Predistortion circuit for an rf amplifier |
| 05/04/2006 | WO2006047294A1 Frequency tunable low noise amplifier |
| 05/04/2006 | US20060094389 Push-pull amplifier and frequency converter circuit |
| 05/04/2006 | US20060091962 Amplifier circuit having improved linearity and frequency band using multiple gated transistor |
| 05/04/2006 | US20060091961 Overcurrent protection circuit with fast current limiting control |
| 05/04/2006 | US20060091960 Current limit circuit for power amplifiers |
| 05/04/2006 | US20060091950 Amplification device |
| 05/04/2006 | US20060091949 Signal correction by predistortion |
| 05/04/2006 | US20060091947 Amplifier circuit |
| 05/04/2006 | DE102004053031A1 Circuit arrangement for signal conversion amplification and power modules has short circuit protection device with voltage follower and drain resistance in parallel |
| 05/03/2006 | EP1653630A2 Digital predistorter and predistortion method therefor |
| 05/03/2006 | EP1652295A2 Temperature-insensitive bias circuit for high-power amplifiers |
| 05/03/2006 | EP1652294A1 Cartesian loop transmitter and method of adjusting an output level of such transmitter |
| 05/03/2006 | EP1652020A1 A control circuit for diode based rf circuits |
| 05/03/2006 | EP1569330B1 Method and apparatus for improving power amplifier efficience in wireless communication systems having high peak to average power ratios |
| 05/03/2006 | EP1310012B1 Highly integrated single substrate mmw multi-beam sensor |
| 05/03/2006 | CN1768474A Digital amplifier |
| 05/03/2006 | CN1768472A Digital amplifier |
| 05/03/2006 | CN1768471A Digital amplifier |
| 05/03/2006 | CN1767377A Digital predistorter and predistortion method therefor |
| 05/03/2006 | CN1767376A Fuzzy power protecting circuit |
| 05/03/2006 | CN1767375A Device for eliminating digital audio apparatus noise |
| 05/03/2006 | CN1767374A Low noise amplifier with low noise, high isolation bias circuit |
| 05/03/2006 | CN1767373A High efficiency amplifier |
| 05/03/2006 | CN1254915C Bootstrap circuit, buffer circuit and active matrix display |
| 05/03/2006 | CN1254912C Wideband dual amplifier circuits |
| 05/03/2006 | CN1254911C Linearised radio transmitter |
| 05/02/2006 | US7039561 Outlier rejection method in an automatic clinical analyzer |
| 05/02/2006 | US7039124 Apparatus and method for compensating for analog quadrature modulation error |
| 05/02/2006 | US7038603 Analog to digital converter using analog-valued floating-gate transistors |
| 05/02/2006 | US7038548 Amplifier circuit for AM broadcasting |
| 05/02/2006 | US7038547 Amplifier circuit |
| 05/02/2006 | US7038546 High-power amplification circuit for amplifying a high frequency signal |
| 05/02/2006 | US7038544 Use of analog-valued floating-gate transistors for parallel and serial signal processing |
| 05/02/2006 | US7038541 Adaptive feed-forward amplifiers and the like |
| 05/02/2006 | US7038540 Enhanced efficiency feed forward power amplifier utilizing reduced cancellation bandwidth and small error amplifier |
| 05/02/2006 | US7038539 RF amplifier employing active load linearization |
| 05/02/2006 | US7038536 Power supply processing for power amplifiers |