| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 02/21/2008 | US20080045165 Method and apparatus for controlling a TX power amplifier |
| 02/21/2008 | US20080042776 Electric component for communication device and semiconductor device for switching transmission and reception |
| 02/21/2008 | US20080042752 Current limit circuit for compensating for output load mismatch of a RF power amplifier |
| 02/21/2008 | US20080042751 Non-Uniform Distributed Multi-Stage Circuits |
| 02/21/2008 | US20080042749 Silicon-on-insulator differential amplifier circuit |
| 02/21/2008 | US20080042747 Current source circuit and differential amplifier |
| 02/21/2008 | US20080042746 Sigma-delta based class d audio or servo amplifier with load noise shaping |
| 02/21/2008 | US20080042745 Sigma-delta based class d audio power amplifier with high power efficiency |
| 02/21/2008 | US20080042744 Output circuit of vacuum-tube amplifier |
| 02/21/2008 | US20080042743 Differential input class d amplifier |
| 02/21/2008 | US20080042742 Distortion Nulling for Single-Ended High Dynamic Range RF Amplifier |
| 02/21/2008 | US20080042735 Signal-level detecting apparatus, optical receiver, and signal-level detecting method |
| 02/21/2008 | US20080042691 High Speed and Power Efficient Sense Amplifier With Leakage Testing and Read Debug Capability |
| 02/21/2008 | US20080042152 Electronic device, display device, interface circuit and differential amplification device, which are constituted by using thin-film transistors |
| 02/21/2008 | DE10115099B4 Verfahren zur Amplitudenbegrenzung und Schaltungsanordnung A method for amplitude limiting and circuitry |
| 02/20/2008 | EP1889373A1 By-pass arrangement of a low noise amplifier |
| 02/20/2008 | EP1083676B1 Optical amplifier device |
| 02/20/2008 | CN101127521A Level converter and semiconductor device |
| 02/20/2008 | CN101127510A Differential input class D amplifier |
| 02/20/2008 | CN101127509A Timer reset circuit for overcurrent protection of switching power amplifier |
| 02/20/2008 | CN101127508A S class amplification circuit oriented to current |
| 02/20/2008 | CN100370686C Tracking power supply control |
| 02/20/2008 | CN100370529C Photo-receiving amplifier element, optical pickup unit, and optical disk device |
| 02/20/2008 | CN100370320C Output circuit, digital analog circuit and display device |
| 02/19/2008 | US7333778 System and method for current-mode amplitude modulation |
| 02/19/2008 | US7333564 High frequency power amplifier circuit |
| 02/19/2008 | US7333557 Adaptive controller for linearization of transmitter with impairments |
| 02/19/2008 | US7332971 Multi-gigabit/s transimpedance amplifier for optical networks |
| 02/19/2008 | US7332970 Integrated amplifier, electronic communication unit with integrated amplifier and method for operating the electronic communication unit with an integrated amplifier |
| 02/19/2008 | US7332968 Amplifier circuit having an impedance-controllable bias-boosting circuit |
| 02/19/2008 | US7332965 Gate leakage insensitive current mirror circuit |
| 02/19/2008 | US7332963 Low noise amplifier |
| 02/19/2008 | US7332962 Filterless class D power amplifier |
| 02/19/2008 | US7332961 Predistortion linearizing |
| 02/19/2008 | US7332960 Method and apparatus for an improved power amplifier |
| 02/19/2008 | US7332959 Modulated triangular wave amplifier |
| 02/19/2008 | US7332958 Analog-differential-circuit test device |
| 02/14/2008 | WO2008019287A2 Replica linearized power amplifier |
| 02/14/2008 | WO2008019122A2 Startup and shutdown click noise elimination for class d amplifier |
| 02/14/2008 | WO2008019009A1 Stacked buffers |
| 02/14/2008 | WO2008018338A1 Harmonic processing circuit and amplifying circuit using the same |
| 02/14/2008 | WO2007126573A3 Frequency limiting amplifier in a fsk receiver |
| 02/14/2008 | WO2007052002A9 Monolithic lna support ic |
| 02/14/2008 | US20080039033 Method and apparatus for controlling a TX power amplifier |
| 02/14/2008 | US20080039024 Amplifying Circuit, Radio Communication Circuit, Radio Base Station Device and Radio Terminal Device |
| 02/14/2008 | US20080037807 Protected digital audio driver |
| 02/14/2008 | US20080036542 Power Supply Device for Driving an Amplifier |
| 02/14/2008 | US20080036541 Bias circuit for maintaining high linearity at cutback power conditions |
| 02/14/2008 | US20080036540 Amplifier arrangement and method for amplifying a signal |
| 02/14/2008 | US20080036539 Power amplifier circuit and test apparatus |
| 02/14/2008 | US20080036538 Rail-to-rail class ab amplifier |
| 02/14/2008 | US20080036537 Wide-band low-noise cmos amplifier |
| 02/14/2008 | US20080036536 System and method for linearizing a CMOS differential pair |
| 02/14/2008 | US20080036535 Amplifying circuit of semiconductor integrated circuit |
| 02/14/2008 | US20080036533 Multi-path doherty amplifier and control method of a multi-path doherty amplifier |
| 02/14/2008 | US20080036507 Differential signal transmission and reception circuit capable of reducing power consumption |
| 02/14/2008 | DE19802103B4 Verfahren und Schaltung zum Steuern der RF-Leistung eines Funksignals A method and circuit for controlling the RF power of a radio signal |
| 02/13/2008 | EP1887686A1 Multi-path Doherty amplifier and control method of a multi-path Doherty amplifier |
| 02/13/2008 | EP1886405A2 System and method for providing an input to a distributed power amplifying system |
| 02/13/2008 | EP1886404A2 Integrated doherty type amplifier arrangement with high power efficiency |
| 02/13/2008 | EP1813015B1 Arrangement for amplifying a pwm input signal |
| 02/13/2008 | EP1652020B1 A control circuit for diode based rf circuits |
| 02/13/2008 | EP1561291A4 Amplitude and phase matching for layered modulation reception |
| 02/13/2008 | EP1433253B1 Apparatus for impedance matching in an amplifier using lumped and distributed inductance |
| 02/13/2008 | CN101124724A Audio signal amplifying circuit and electronic device using the same |
| 02/13/2008 | CN101123419A Automatic control method for RF amplifier gain based on varying electrical bridge principle |
| 02/13/2008 | CN101123418A Rail-to-rail class AB amplifier |
| 02/12/2008 | US7330670 Bottom level detection device for burst mode optical receiver |
| 02/12/2008 | US7330668 Low noise light receiver |
| 02/12/2008 | US7330518 Distortion compensation circuit, and a transmission apparatus including the same |
| 02/12/2008 | US7330077 Monolithically integrated power amplifier device |
| 02/12/2008 | US7330076 Reconfigurable distributed active transformers |
| 02/12/2008 | US7330075 Output impedance control circuit and control method thereof |
| 02/12/2008 | US7330074 Differential amplifier with cascade control |
| 02/12/2008 | US7330070 Method and arrangement for optimizing efficiency of a power amplifier |
| 02/12/2008 | US7330069 Digital switching amplifier |
| 02/12/2008 | US7329850 Vehicle rearview mirror system having a variable reflectance control |
| 02/07/2008 | WO2008015898A1 Transmitter |
| 02/07/2008 | US20080032656 Controllable Power Operational Transconductance Amplifier |
| 02/07/2008 | US20080031383 Replica Linearized Power Amplifier |
| 02/07/2008 | US20080030280 Circuits and Methods for Implementing Transformer-Coupled Amplifiers at Millimeter Wave Frequencies |
| 02/07/2008 | US20080030279 Circuit with Q-enhancement cell having feedback loop |
| 02/07/2008 | US20080030278 Distributed amplifier having a variable terminal resistance |
| 02/07/2008 | US20080030275 Compensation of an amplifier comprising at least two gain stages |
| 02/07/2008 | US20080030274 Gate Bias Generator |
| 02/07/2008 | US20080030273 Active load with adjustable common-mode level |
| 02/07/2008 | US20080030272 Amplifier with improved compensation topology and related amplifier circuit, system, and method |
| 02/07/2008 | US20080030271 Stereo Separation Adjustment Circuit And Mos Integrated Circuit Thereof |
| 02/07/2008 | US20080030270 Startup and shutdown click noise elimination for class d amplifier |
| 02/07/2008 | US20080030268 Multi-channel, multi-power class d amplifier with regulated power supply |
| 02/07/2008 | US20080030267 Class-d audio amplifier with half-swing pulse-width-modulation |
| 02/07/2008 | US20080030238 Sense amplifier-based flip-flop and method thereof |
| 02/07/2008 | US20080030237 Signal-processing circuit, in particular operating as a rectifier and peak detector, with active elements and differential inputs |
| 02/07/2008 | DE102007010429A1 Power amplifier arrangement, has regeneration unit with transformer adjusting output voltage set in several supply voltage stages and phases, which are selected such that voltage difference is minimal depending on voltage of amplifier |
| 02/07/2008 | DE102006035006A1 Verstärker für einen Radiofrequenzsender zum Übertragen eines Sendesignals an eine otologische Vorrichtung Amplifier for a radio frequency transmitter for transmitting a transmission signal to an otological device |
| 02/07/2008 | DE102006025784A1 Schaltungsanordnung für das Verzerren eines Eingangssignals Circuit arrangement for distorting an input signal |
| 02/06/2008 | EP1885061A1 Amplifier arrangement and method for amplification |
| 02/06/2008 | EP1885060A2 Amplifier for a radio frequency transmitter for transmitting a transmission signal to an otological device |
| 02/06/2008 | EP1885059A2 Electron beam facility for processing material and current adding device for rapid actuation of inductivity and image creation device for an electron beam facility for processing material |
| 02/06/2008 | EP1883993A2 Radio frequency power amplifier and method using an amplitude control system |