| 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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| 11/10/2005 | US20050251033 Methods, systems, and associated implantable devices for detecting radiation in patients undergoing treatment for cancer |
| 11/10/2005 | US20050249321 Phase rotation estimation |
| 11/10/2005 | US20050249310 Circuit for converting a differential signal into a non-differential signal, and RF transmitter comprising such a circuit |
| 11/10/2005 | US20050249309 Device for processing radio transmission data with digital predistortion |
| 11/10/2005 | US20050249005 Semiconductor integrated circuit with noise reduction circuit |
| 11/10/2005 | US20050248409 Selectable gain amplifier |
| 11/10/2005 | US20050248408 Ultra-wideband constant gain CMOS amplifier |
| 11/10/2005 | US20050248403 Amplifying signals using a quadrature coupled amplifier |
| 11/10/2005 | US20050248402 Dual-band CMOS front-end with two gain modes |
| 11/10/2005 | US20050248401 Composite power amplifier |
| 11/10/2005 | US20050248389 Dynamic gain compensation and calibration |
| 11/10/2005 | US20050248371 Current to voltage amplifier |
| 11/10/2005 | DE102005013304A1 Systeme und Verfahren zum Einstellen eines Ausgangstreibers Systems and methods for adjusting an output driver |
| 11/10/2005 | DE102004018355A1 Signal processing circuit for temperature compensation in differential amplifier wireless circuits has control to adjust geometrical parameters according temperature derived signal |
| 11/10/2005 | DE10000319B4 Hochfrequenz-Leistungsverstärker High frequency power amplifier |
| 11/09/2005 | EP1594222A1 Operating point adjusting method and power amplifier circuit |
| 11/09/2005 | EP1552602A4 Enhanced efficiency ldmos based feed forward amplifier |
| 11/09/2005 | EP1166192B1 Bandgap voltage reference source |
| 11/09/2005 | EP1095449A4 Amplifier with dynamically adaptable supply current |
| 11/09/2005 | CN1695370A Automatically setting an operative state of a wideband amplifier |
| 11/09/2005 | CN1695297A Power amplifying device for communication system |
| 11/09/2005 | CN1695296A Power amplifying device |
| 11/09/2005 | CN1694351A Signal amplifier |
| 11/09/2005 | CN1694350A Class-D amplifier |
| 11/09/2005 | CN1226889C Method for contracting and enlarging signal peak value power amplitude and corresponding transmitter |
| 11/08/2005 | US6963771 Methods, systems, and associated implantable devices for radiation dose verification for therapies used to treat tumors |
| 11/08/2005 | US6963770 Methods, systems, and associated implantable devices for dynamic monitoring of physiological and biological properties of tumors |
| 11/08/2005 | US6963621 Method and apparatus for reducing distortion of digital data |
| 11/08/2005 | US6963247 Gain stabilization technique for narrow band integrated low noise amplifiers |
| 11/08/2005 | US6963246 Wideband amplifier |
| 11/08/2005 | US6963244 Common mode linearized input stage and amplifier topology |
| 11/08/2005 | US6963243 Amplifier pre-distortion processing based on composite look-up tables |
| 11/08/2005 | US6963242 Predistorter for phase modulated signals with low peak to average ratios |
| 11/08/2005 | US6963241 Method and apparatus for increasing the efficiency of a transmitter |
| 11/03/2005 | WO2005104358A1 Differential stage voltage offset trim circuitry |
| 11/03/2005 | WO2005104355A1 Method and apparatus for doherty amplifier biasing |
| 11/03/2005 | WO2005104354A2 Low-complexity nonlinear filters |
| 11/03/2005 | WO2005104353A1 A device including an equalizer and an amplification chain for broadband integrated circuit applications |
| 11/03/2005 | WO2005104352A1 Amplifier, information communication device and amplifying method |
| 11/03/2005 | WO2005104351A2 Multi-band low noise amplifier system |
| 11/03/2005 | WO2005104350A1 Television switch module |
| 11/03/2005 | WO2005104349A1 Signal output circuit, audio signal output apparatus using the same, and electronic device |
| 11/03/2005 | US20050246143 Method for integrating image sensor |
| 11/03/2005 | US20050246142 Apparatus and method for determining a state parameter of an object to be monitored |
| 11/03/2005 | US20050246139 Inserting apparatus and method with controlled, master cycle speed-dependent actuator operations |
| 11/03/2005 | US20050245213 Communication apparatus |
| 11/03/2005 | US20050243946 Symbol error based compensation methods for nonlinear amplifier distortion |
| 11/03/2005 | US20050243945 Method for generating a signal with a definable pulse shape |
| 11/03/2005 | US20050242975 Self-powered digital audio devices |
| 11/03/2005 | US20050242906 Chua's circuit and it's use in a hyperchaotic circuit |
| 11/03/2005 | US20050242887 Low noise amplifier |
| 11/03/2005 | US20050242885 Smart voltage rail reduction audio amplifier |
| 11/03/2005 | US20050242881 Variable gain amplifier with improved control characteristics linearity |
| 11/03/2005 | US20050242880 Power amplifier system |
| 11/03/2005 | US20050242879 Transmission arrangement and method for operating an amplifier in a transmission arrangement |
| 11/03/2005 | US20050242878 Method and Apparatus for Extending the Bandwidth of a Class D Amplifier Circuit |
| 11/03/2005 | US20050242877 Distortion compensating and power amplifying apparatus |
| 11/03/2005 | US20050242876 Parameter estimation method and apparatus |
| 11/03/2005 | US20050242875 High efficiency linear amplifier employing dynamically controlled back off |
| 11/03/2005 | US20050242839 Signal amplifier |
| 11/03/2005 | DE102004018986B3 Verfahren zur Erzeugung eines Signals mit einem vorgebbaren Pulsdach A method for generating a signal with a predeterminable pulse roof |
| 11/03/2005 | DE102004017528A1 Sendeanordnung und Verfahren zum Betreiben eines Verstärkers in einer Sendeanordnung Transmitting arrangement and method for operating an amplifier in a transmission arrangement |
| 11/03/2005 | DE102004015611A1 Offset portion compensation device for analog amplifier, has integrated circuit unit providing output signal whose offset portion depends on mechanical stress component, and combination device to combine compensation and output signals |
| 11/03/2005 | CA2560043A1 Low-complexity nonlinear filters |
| 11/02/2005 | EP1592132A1 Switch apparatus, switchable power amplification apparatus, and mobile communication terminal apparatus |
| 11/02/2005 | EP1592128A1 High-frequency amplifier |
| 11/02/2005 | EP1592127A1 Analog predistortion linearizer with fixed in advance intermodulation power, method and device |
| 11/02/2005 | EP1592126A1 Doherty amplifier and its distortion characteristic compensation method |
| 11/02/2005 | EP1590934A2 Signal processing system with baseband noise modulation chopper circuit timing to reduce noise |
| 11/02/2005 | EP1590905A2 Signal processing system with baseband noise modulation and noise fold back reduction |
| 11/02/2005 | EP1590893A2 Feed forward amplifier system employing self-generating alignment lists and adaptive controller |
| 11/02/2005 | EP1590887A1 Method for improving the output power of a non-linear power amplifier |
| 11/02/2005 | EP1201023A4 Dc offset calibration for a digital switching amplifier |
| 11/02/2005 | EP1042864B1 Method and apparatus for wideband predistortion linearization |
| 11/02/2005 | CN1692560A Transmitter |
| 11/02/2005 | CN1692553A Electronic circuit |
| 11/02/2005 | CN1692549A Efficiency of power amplifier |
| 11/02/2005 | CN1691496A Circuit structure capable of regulating output to temperature slope |
| 11/02/2005 | CN1691495A Differential amplifier device, 2-stage amplifier device, and analog/digital converter device |
| 11/02/2005 | CN1225843C Calibration of in-phase and quadrature transmit branches of transmitter |
| 11/02/2005 | CN1225834C High-frequency power amplifier with bipolar transistor |
| 11/02/2005 | CN1225833C Method and device for distortion compensation |
| 11/01/2005 | US6961679 Method and system of dynamic learning through a regression-based library generation process |
| 11/01/2005 | US6961554 Power amplifier including a desensitized bias circuit |
| 11/01/2005 | US6961546 Adaptive radio transceiver with offset PLL with subsampling mixers |
| 11/01/2005 | US6961385 Signal processing system with baseband noise modulation chopper circuit timing to reduce noise |
| 11/01/2005 | US6960958 Predistortion circuit, low-distortion power amplifier, and control methods therefor |
| 11/01/2005 | US6960957 Predistortion circuit, low-distortion power amplifier, and control methods therefor |
| 11/01/2005 | US6960956 Apparatus and methods for monitoring and controlling power amplifier linearity using detected fundamental and harmonic components |
| 10/27/2005 | WO2005101650A1 Digital amplifier and methods for enhancing resolution and dynamic range of a digital amplifier |
| 10/27/2005 | WO2005101649A2 Direct current offset correction systems and methods |
| 10/27/2005 | US20050239423 Power amplifier efficiency |
| 10/27/2005 | US20050238014 Receiver and method for receiving burst mode packet |
| 10/27/2005 | US20050237234 Analog-digital converter with gain adjustment for high-speed operation |
| 10/27/2005 | US20050237127 Electronic device and method of matching the impedance thereof |
| 10/27/2005 | US20050237114 MMIC distributed amplifier gate control using active bias |
| 10/27/2005 | US20050237113 Predistortion circuit, low-distortion power amplifier, and control methods therefor |
| 10/27/2005 | US20050237112 Even order distortion elimination in push-pull or differential amplifiers and circuits |
| 10/27/2005 | US20050237111 Implementation method for pre-distortion of non-linear devices |
| 10/27/2005 | US20050237109 Servo balancing among driver devices |