| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 01/20/2005 | US20050013029 Voice coil motor power amplifier |
| 01/20/2005 | US20050012703 Thin film transistor circuit and semiconductor display device using the same |
| 01/20/2005 | US20050012649 Sigma-delta modulator with reduced switching rate for use in class-D amplification |
| 01/20/2005 | US20050012554 Efficient class-g amplifier with wide output voltage swing |
| 01/20/2005 | US20050012553 Variable gain low noise amplifier and method |
| 01/20/2005 | US20050012552 System and method for improved bias matching |
| 01/20/2005 | US20050012549 Amplifier circuit having signal detection function |
| 01/20/2005 | US20050012548 High-frequency amplifier circuit |
| 01/20/2005 | US20050012547 High linearity doherty communication amplifier with phase control |
| 01/20/2005 | US20050012546 Digital PWM input D class amplifier by PMW negative feedback |
| 01/20/2005 | US20050012545 Device and method for signal processing |
| 01/20/2005 | US20050012526 Differental inverter circuit |
| 01/20/2005 | CA2526723A1 Amplifier system for determining parameters of a patient |
| 01/19/2005 | EP1499013A1 Amplifier device for satellite |
| 01/19/2005 | EP1499011A1 Amplifying circuit comprising an envelope modulated limit cycles modulator circuit |
| 01/19/2005 | EP1498803A2 Method and circuit for effective conversion of PCM into PWM data |
| 01/19/2005 | EP1497915A1 Hf amplifier comprising a switchable amplification |
| 01/19/2005 | EP1497914A1 Sensor circuit |
| 01/19/2005 | EP1436892A4 System and method for improving input return loss in rf amplifiers |
| 01/19/2005 | EP1425851A4 Broadband amplifier system having improved linearity and minimum loss |
| 01/19/2005 | EP1308026B1 Driver circuit for subscriber terminals |
| 01/19/2005 | EP1042865B8 Pulse referenced control method for enhanced power amplification of a pulse modulated signal |
| 01/19/2005 | EP0882325B1 Charge sensitive amplifier with high common mode signal rejection |
| 01/19/2005 | CN1568573A Amplification circuit |
| 01/19/2005 | CN1568478A Amplifier modulation |
| 01/19/2005 | CN1567716A Amplifying circuit |
| 01/19/2005 | CN1567714A Digital power amplifier with ultralow internal resistance |
| 01/19/2005 | CN1567713A Low-energy zone gap reference voltage circuit |
| 01/19/2005 | CN1185792C Improved floating, balanced output circuit |
| 01/19/2005 | CN1185788C Power amplification circuit with load regulator for controlling adjacent and alternate channel power |
| 01/19/2005 | CN1185787C Switchable voltage follower and bridge driving circuit unit with the follower |
| 01/19/2005 | CN1185786C 放大器电路 The amplifier circuit |
| 01/18/2005 | US6844793 Signal combiner, a signal splitter and a circuit using a combiner and a splitter |
| 01/18/2005 | US6844792 Single ended tuning of a differential power amplifier output |
| 01/18/2005 | US6844784 Wide dynamic range transimpedance amplifier |
| 01/18/2005 | US6844782 Temperature compensation circuit and a variable gain amplification circuit |
| 01/18/2005 | US6844781 Dual differential-input amplifier having wide input range |
| 01/18/2005 | US6844779 Optically isolated bias control circuit |
| 01/18/2005 | US6844778 Amplifier device with a selectable active or passive operational mode and ultrasonic apparatus |
| 01/18/2005 | US6844777 Audio amplifier |
| 01/18/2005 | US6844776 Power control and modulation of switched-mode power amplifiers with one or more stages |
| 01/18/2005 | US6844775 Operational amplifier with adjustable input offset |
| 01/18/2005 | US6844773 Semiconductor integrated circuit device enabling to produce a stable constant current even on a low power-source voltage |
| 01/18/2005 | US6844768 Dynamic method for limiting the reverse base-emitter voltage |
| 01/18/2005 | US6844753 Output circuit of semiconductor integrated circuit device |
| 01/13/2005 | WO2005004330A1 Method of establishing a pwm-modulated output signal representation |
| 01/13/2005 | WO2004079773A3 High efficiency emitter for incandescent light sources |
| 01/13/2005 | WO2004066642A3 Signal processing system with baseband noise modulation chopper circuit timing to reduce noise |
| 01/13/2005 | US20050009485 High-frequency amplification circuit |
| 01/13/2005 | US20050009484 High frequency power amplifier module and semiconductor integrated circuit device |
| 01/13/2005 | US20050008100 Carrier to noise ratio estimations from a received signal |
| 01/13/2005 | US20050007842 Amplifying circuit, amplifying apparatus, and memory apparatus |
| 01/13/2005 | US20050007496 Compensation circuit for frequency filters |
| 01/13/2005 | US20050007200 Cascode circuit and integrated circuit having it |
| 01/13/2005 | US20050007199 Transimpedance amplifier |
| 01/13/2005 | US20050007198 Power amplifier module |
| 01/13/2005 | US20050007197 Method and system for producing a drive signal for a current steering amplifier |
| 01/13/2005 | US20050007196 Absorptive microwave single pole single throw switch |
| 01/13/2005 | US20050007195 Low voltage high gain amplifier circuits |
| 01/13/2005 | US20050007194 Switched-mode power amplifier using lumped element impedance inverter for parallel combining |
| 01/13/2005 | US20050007190 Potential generating circuit capable of correctly controlling output potential |
| 01/13/2005 | US20050007177 Method and circuit for perturbing removable singularities in coupled translinear loops |
| 01/13/2005 | US20050007161 Circuitry and method to provide a high speed comparator for an input stage of a low-voltage differential signal receiver circuit |
| 01/13/2005 | DE20122243U1 Current controlled CMOS circuits with inductive broadbanding, has two n channel MOSFETs having their source terminals coupled to first node, gate terminals coupled to receive two differential logic signals, respectively |
| 01/13/2005 | DE20122241U1 Current controlled CMOS circuits with inductive broadbanding, has two n channel MOSFETs having their source terminals coupled to first node, gate terminals coupled to receive two differential logic signals, respectively |
| 01/13/2005 | DE20122239U1 Current controlled CMOS circuits with inductive broadbanding, has two n channel MOSFETs having their source terminals coupled to first node, gate terminals coupled to receive two differential logic signals, respectively |
| 01/13/2005 | DE102004016842A1 Eintakt-Differenzsignal-Wandler Single ended difference signal converter |
| 01/12/2005 | EP1496613A1 Source follower circuit |
| 01/12/2005 | EP1496611A1 Multi-channel power amplifier self-configuring to a bridge or single-ended output, particularly for audio applications |
| 01/12/2005 | EP1442563A4 Method and system for dsl power saving |
| 01/12/2005 | CN1565145A Transponder with a changeable circuit configuration |
| 01/12/2005 | CN1564457A Optimized design method of microwave amplifying circuit |
| 01/11/2005 | US6842880 Semiconductor integrated circuit designing method and semiconductor device |
| 01/11/2005 | US6842527 Dynamic allocation of power supplied by a power supply and frequency agile spectral filtering of signals |
| 01/11/2005 | US6842525 Signal amplification circuit and process for neutralizing noise from a power supply voltage |
| 01/11/2005 | US6842486 Signal processing system with baseband noise modulation and noise fold back reduction |
| 01/11/2005 | US6842076 Radio frequency power amplifier module |
| 01/11/2005 | US6842075 Gain block with stable internal bias from low-voltage power supply |
| 01/11/2005 | US6842074 Base bias circuit, and power amplifier using the base bias circuit |
| 01/11/2005 | US6842073 Electronic circuit comprising an amplifier for amplifying a binary signal |
| 01/11/2005 | US6842070 Multi-level Class-D amplifier by means of 2 physical layers |
| 01/11/2005 | CA2417125C Halftone image device and its driving circuit |
| 01/06/2005 | WO2005002050A1 Self-oscillating power circuit |
| 01/06/2005 | WO2005002046A1 Integrated power amplifier circuit |
| 01/06/2005 | WO2005002045A1 Integrated power amplifier circuit |
| 01/06/2005 | WO2005002044A1 Integrated power amplifier circuit |
| 01/06/2005 | WO2005002043A2 Digital power amplifier with ultra-low internal-resistence |
| 01/06/2005 | WO2005002042A2 Integrated power amplifier circuit |
| 01/06/2005 | WO2003034391A9 Method and system for adjusting the voltage of a precharge circuit |
| 01/06/2005 | WO2003034385A9 System and method for illumination timing compensation in response to row resistance |
| 01/06/2005 | US20050004482 Amplified system for determining parameters of a patient |
| 01/06/2005 | US20050003573 Field-effect type semiconductor device for power amplifier |
| 01/06/2005 | US20050002316 Laser driver circuit with reduced noise and optical pickup circuit for use with the same |
| 01/06/2005 | US20050002250 Method and apparatus for amplifying a regulated differential signal to a higher voltage |
| 01/06/2005 | US20050002144 Fast CMOS matched impedance DC write current driver for preamplifiers |
| 01/06/2005 | US20050001687 Power amplifier module with distortion compensation |
| 01/06/2005 | US20050001686 Image display apparatus and high voltage driver circuit |
| 01/06/2005 | US20050001685 High frequency amplifier circuit and mobile communication terminal using the same |
| 01/06/2005 | US20050001683 MOSFET well biasing scheme that mitigates body effect |
| 01/06/2005 | US20050001682 Low threshold voltage circuit employing a high threshold voltage output stage |