| 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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| 04/14/2005 | US20050077961 Class AB rail-to-rail operational amplifier |
| 04/14/2005 | US20050077960 Digital feedback linearizing apparatus to linearize power amplifier and method used by the apparatus |
| 04/14/2005 | US20050077958 Amplifier with capacitor selection |
| 04/14/2005 | US20050077953 Input/output circuit, reference-voltage generating circuit, and semiconductor integrated circuit |
| 04/14/2005 | US20050077952 Band gap constant voltage circuit |
| 04/14/2005 | DE10338334A1 Noise compensation in communication systems uses a diode ring arrangement to separate noise and signal |
| 04/14/2005 | DE102004044114A1 Videoeingangsschutzschaltung zum Schutz gegen Kurzschluss zur Batterie unter Beibehaltung eines Abschlusswiderstands Video input protection circuit for protection against short circuit to the battery while maintaining a terminating resistor |
| 04/14/2005 | CA2540127A1 Method for aligning feed forward loops |
| 04/13/2005 | EP1523102A2 Digital feedback linearizing apparatuses and methods |
| 04/13/2005 | EP1523101A2 Radio transmitter |
| 04/13/2005 | EP1523098A1 Receiver including linearity compensation in the receive band |
| 04/13/2005 | EP1523094A1 Automatically adjusting low noise amplifier |
| 04/13/2005 | EP1523093A1 Frequency compensation of a wide-band operational amplifier |
| 04/13/2005 | EP1522142A2 Amplifying circuit with adjustable amplification and transmitter system comprising such an amplifying circuit |
| 04/13/2005 | EP1142250B1 Power i-q modulation systems and methods using predistortion circuit |
| 04/13/2005 | EP0875096B1 Method and circuit arrangement for reducing offset voltage of a signal |
| 04/13/2005 | CN1606364A Digital feedback linearizing apparatus to linearize power amplifier and method used by the apparatus |
| 04/13/2005 | CN1606232A Signal transmission apparatus and method |
| 04/13/2005 | CN1197401C Method of linearizing transmission chain including power amplifier in wide frequency band |
| 04/13/2005 | CN1197081C Data memory device |
| 04/12/2005 | US6879929 Sense amplifier thermal correction scheme |
| 04/12/2005 | US6879220 Switchless combining of multi-carrier coherent and incoherent carriers |
| 04/12/2005 | US6879215 Synthetic circuit component and amplifier applications |
| 04/12/2005 | US6879214 Bias circuit with controlled temperature dependence |
| 04/12/2005 | US6879212 Operational amplifier having large output current with low supply voltage |
| 04/12/2005 | US6879209 Switched-mode power amplifier using lumped element impedance inverter for parallel combining |
| 04/12/2005 | US6879205 Process for controlling the impedance of an output amplification semiconductor device and corresponding output amplifying device |
| 04/12/2005 | US6879204 Exponential conversion circuit |
| 04/07/2005 | WO2005031993A1 Amplifier circuit and amplifying method |
| 04/07/2005 | WO2005031984A2 Method and apparatus to compensate am-pm delay mismatch in envelope restoration transmitter |
| 04/07/2005 | WO2005031969A1 Bypass switch topology for low-noise amplifiers |
| 04/07/2005 | WO2005031968A1 Input/output signals preserver circuit of amplification circuits |
| 04/07/2005 | WO2005031967A1 Doherty power amplifying apparatus |
| 04/07/2005 | WO2005031966A1 Composite power amplifier |
| 04/07/2005 | WO2005031965A2 Stacked rf power amplifier |
| 04/07/2005 | WO2004045066A8 Method and device for training an rf amplifier linearization device, and mobile terminal incorporating same |
| 04/07/2005 | US20050073374 Method and apparatus to match output impedance of combined outphasing power amplifiers |
| 04/07/2005 | US20050073366 Dual gate cascade amplifier |
| 04/07/2005 | US20050073364 Frequency compensation of wide-band resistive gain amplifier |
| 04/07/2005 | US20050073361 Distortion compensator |
| 04/07/2005 | US20050073360 Architecture and implementation methods of digital predistortion circuitry |
| 04/07/2005 | US20050073358 Differential amplifier circuit and drive circuit of liquid crystal display unit using the same |
| 04/07/2005 | US20050073357 Automatically adjusting low noise amplifier |
| 04/07/2005 | US20050073290 Method and apparatus for compensating for temperature drift in semiconductor processes and circuitry |
| 04/06/2005 | EP1521376A1 Base station for a wireless telecommunications system |
| 04/06/2005 | EP1521361A1 Modular amplifier arrangement |
| 04/06/2005 | EP1521360A1 Parallel amplifier arrangement |
| 04/06/2005 | EP1521359A1 Amplifier assembly with an adjustable performance |
| 04/06/2005 | EP1520396A2 Even order distortion elimination in push-pull or differential amplifiers and circuits |
| 04/06/2005 | EP1520340A1 Blind linearization using cross-modulation |
| 04/06/2005 | EP1468487A4 A high performance bifet low noise amplifier |
| 04/06/2005 | EP1297621B1 High-frequency amplifier circuit with negative impedance cancellation |
| 04/06/2005 | CN1604577A Electropult with adaptive figure preidstortion, receiver and receptor possessing same , method for operating same |
| 04/06/2005 | CN1604515A Method and apparatus for generating crc for messages having n blocks of data |
| 04/06/2005 | CN1604464A Differential amplifier circuit and drive circuit of liquid crystal display unit using the same |
| 04/06/2005 | CN1604462A Integrated power amplifier |
| 04/06/2005 | CN1604209A Current to voltage conversion circuit for photo detector integrated circuit employing gain switching circuit |
| 04/06/2005 | CN1604156A Operational amplifying circuit, driving circuit and driving method |
| 04/06/2005 | CN1196256C Muting circuit having controllable impedance means for soft muting |
| 04/06/2005 | CN1196255C Amplifier |
| 04/06/2005 | CN1196254C Non-linear distortion generator for both second and third order distortion |
| 04/06/2005 | CN1196253C Self-adaption gain and/or phase regulation control system and method thereof |
| 04/06/2005 | CN1196252C Gate biasing arrangement |
| 04/06/2005 | CN1196196C Semiconductor integrated circuit |
| 04/05/2005 | US6876260 Elevated front-end transimpedance amplifier |
| 04/05/2005 | US6876255 Linear amplifier using non-linear CMOS capacitors |
| 04/05/2005 | US6876254 Dual amplifier circuit and TFT display driving circuit using the same |
| 04/05/2005 | US6876253 Amplifier for alternating signals superimposed on a continuous signal and method for amplifying such signals |
| 04/05/2005 | US6876251 Reference voltage source circuit operating with low voltage |
| 04/05/2005 | US6876182 MOSFET current mirror circuit with cascode output |
| 03/31/2005 | WO2005029875A2 Digital convertible radio snr optimization |
| 03/31/2005 | WO2005029711A2 Single-ended input, differential output low noise amplifier |
| 03/31/2005 | WO2005029695A1 Amplifier |
| 03/31/2005 | WO2005029694A1 An adaptive wideband digital amplifier for linearly modulated signal amplification and transmission |
| 03/31/2005 | WO2005011104A3 Low-consumption voltage amplifier |
| 03/31/2005 | WO2004082321A3 Multi-channel digital feedback reducer system |
| 03/31/2005 | WO2004059832A3 Bias-management system and method for programmable rf power amplifier |
| 03/31/2005 | US20050071132 Digital measurements of spread spectrum clocking |
| 03/31/2005 | US20050071131 A method of computing partial crcs |
| 03/31/2005 | US20050071123 Refining stochastic grid filter |
| 03/31/2005 | US20050069026 Method and apparatus to compensate AM-PM delay mismatch in envelope restoration transmitter |
| 03/31/2005 | US20050068219 Analog-to-digital converter having cyclic configuration |
| 03/31/2005 | US20050068218 Pipelined and cyclic analog-to-digital converters |
| 03/31/2005 | US20050068108 Detecting load current in multi-reference amplifiers |
| 03/31/2005 | US20050068107 Amplifier power control circuit |
| 03/31/2005 | US20050068106 Low-noise amplifying circuit |
| 03/31/2005 | US20050068103 Stacked RF power amplifier |
| 03/31/2005 | US20050068102 Distortion-compensated amplifier using predistortion technique |
| 03/31/2005 | US20050068101 High efficiency power amplification apparatus with multiple power modes |
| 03/31/2005 | US20050068100 Signal amplifier |
| 03/31/2005 | US20050068099 Bypass switch topology for low-noise amplifiers |
| 03/31/2005 | US20050068097 Adaptive self-calibration method and apparatus |
| 03/31/2005 | US20050068087 Exponential conversion circuit |
| 03/31/2005 | US20050068067 Input buffer capable of reducing input capacitance seen by input signal |
| 03/31/2005 | US20050068066 Logic circuit |
| 03/31/2005 | DE10337444A1 Device for simultaneous transmission of two mobile RF signals e.g. for mobile RF equipment of third generation, has device for matching power output stage at input and/or output over wide frequency range |
| 03/30/2005 | EP1518342A1 Satellite travelling-wave tube amplifier on-line non-linearity measurement |
| 03/30/2005 | EP1518335A1 Method for tuning an envelope tracking amplification system |
| 03/30/2005 | EP1518329A1 Blind cancellation of cross-modulation by addition of modulated signal |
| 03/30/2005 | EP1518322A1 Fast cascaded class ab output stage with fet devices |