| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 07/16/2009 | WO2009088278A2 Temperature compensation method for ion sensor using vt extractor circuit |
| 07/16/2009 | WO2009087490A1 Semiconductor device and differential amplifier circuit therefor |
| 07/16/2009 | WO2008094270A9 Chopper-stabilized instrumentation amplifier for wireless telemetry |
| 07/16/2009 | US20090179890 Operational amplifier, drive circuit, and method for driving liquid crystal display device |
| 07/16/2009 | US20090179876 Buffer amplifier with minimized power consumption and display driver including the same |
| 07/16/2009 | US20090179709 Signal modulation scheme in class-d amplification and circuit therefor |
| 07/16/2009 | US20090179704 Load insensitive balanced power amplifier and related operating method |
| 07/16/2009 | US20090179703 High efficiency power amplifier |
| 07/16/2009 | US20090179701 Fast switch for controlling a differential-pair amplifier |
| 07/16/2009 | US20090179700 AC Coupling Circuits Including Resistive Feedback and Related Methods and Devices |
| 07/16/2009 | US20090179699 Fully differential comparator and fully differential amplifier |
| 07/16/2009 | US20090179697 Amplifier having a virtual ground and method thereof |
| 07/16/2009 | US20090179670 Performance inversion detection circuit and a design structure for the same |
| 07/16/2009 | US20090179665 Output driver robust to data dependent noise |
| 07/16/2009 | US20090179620 Switching power supply device and semiconductor integrated circuit |
| 07/16/2009 | DE10035066B4 System zur speichergestützten Lasteinstellung eines Verstärkers System for memory-based load setting of an amplifier |
| 07/15/2009 | EP2078337A2 Determining on chip load impedance of rf circuit |
| 07/15/2009 | EP2078336A2 A commutating auto zero amplifier |
| 07/15/2009 | EP2078335A2 Class d amplifier |
| 07/15/2009 | EP2078334A2 Voltage-boosting stage |
| 07/15/2009 | EP1815590A4 Transmit signal generator and method |
| 07/15/2009 | CN101485082A D类音频放大器 Class-D audio amplifier |
| 07/15/2009 | CN101483412A Operational amplifier, drive circuit, and method for driving liquid crystal display device |
| 07/15/2009 | CN101483411A Fast switch circuit for controlling a differential-pair amplifier and method thereof |
| 07/15/2009 | CN101483410A Signal amplifying apparatus |
| 07/15/2009 | CN101483409A Low noise amplifier using multipath noise counteraction |
| 07/15/2009 | CN100514858C Word length reduction circuit |
| 07/15/2009 | CN100514852C Power amplifier circuit and method for amplifying RF signals |
| 07/15/2009 | CN100514851C Distributed amplifier |
| 07/15/2009 | CN100514850C Amplifier |
| 07/15/2009 | CN100514849C Class-D amplifier |
| 07/15/2009 | CN100514848C Broad-band high frequency linear amplifier and integrated circuit chip |
| 07/15/2009 | CN100514847C Amplifier circuit |
| 07/15/2009 | CN100514846C Device and method for analyzing power gain and dissipation in multistage radio frequency amplifier |
| 07/15/2009 | CN100514843C Power controller for power amplifier of mobile communication terminal |
| 07/15/2009 | CN100514842C Signal output circuit, audio signal output apparatus using the same, and electronic device |
| 07/14/2009 | US7561856 Distortion compensation amplifying apparatus and base station |
| 07/14/2009 | US7561125 Data drive circuit for current writing type AMOEL display panel |
| 07/14/2009 | US7560994 Systems and methods for cascode switching power amplifiers |
| 07/14/2009 | US7560993 Amplifier |
| 07/14/2009 | US7560989 Power amplifier with controlled output power |
| 07/14/2009 | US7560988 Integrated circuit system for line regulation of an amplifier |
| 07/14/2009 | US7560987 Amplifier circuit with bias stage for controlling a common mode output voltage of the gain stage during device power-up |
| 07/14/2009 | US7560986 Variable gain amplifier and method for achieving variable gain amplification with high bandwidth and linearity |
| 07/14/2009 | US7560985 Two-stage amplification using intermediate non-linear square wave |
| 07/14/2009 | US7560983 Multiple-path power amplifier |
| 07/14/2009 | US7560683 Photo detecting circuit and noise elimination method utilized to produce a photo reception signal |
| 07/14/2009 | CA2507033C Closed loop transmitter control for power amplifier in an eas system |
| 07/09/2009 | WO2009085675A1 Level shifting switch driver on gaas phempt |
| 07/09/2009 | WO2009083709A1 Amplifier circuit |
| 07/09/2009 | WO2009066296A3 A low-power piezoelectric amplifier and method thereof |
| 07/09/2009 | US20090176462 Wide dynamic range out-phasing array transmitter |
| 07/09/2009 | US20090176448 Distributed automatic gain control system |
| 07/09/2009 | US20090174731 Photo sensor and flat panel display using the same |
| 07/09/2009 | US20090174495 Contactless ic card system |
| 07/09/2009 | US20090174485 Over-current sensing during narrow gate drive operation of class d output stages |
| 07/09/2009 | US20090174482 High power integrated rf amplifier |
| 07/09/2009 | US20090174481 Multi-linearity mode lna having a deboost current path |
| 07/09/2009 | US20090174480 Systems and Methods for Cascode Switching Power Amplifiers |
| 07/09/2009 | US20090174479 High-voltage differential amplifier and method using low voltage amplifier and dynamic voltage selection |
| 07/09/2009 | US20090174478 Circuit and method for generating a PWM control signal for a class-D amplifier |
| 07/09/2009 | US20090174473 Systems, Methods, and Apparatuses for Linear Envelope Elimination and Restoration Transmitters |
| 07/09/2009 | US20090174472 Apparatus and method for improving the feedback linearity of a 1.5-bit sigma-delta class-D amplifier |
| 07/08/2009 | EP2077616A1 Transistor output circuit and method |
| 07/08/2009 | EP2077615A1 Operational amplifier and integrating circuit |
| 07/08/2009 | EP1751854A4 Audio amplifier and speaker incorporating audio amplifier |
| 07/08/2009 | EP1435693B1 Amplification circuit |
| 07/08/2009 | CN101478295A Differential amplifier circuit and drive circuit of liquid crystal display unit using the same |
| 07/08/2009 | CN101478294A System and method for cascode switch power amplifier |
| 07/08/2009 | CN101478293A Temperature compensation power amplifier circuit |
| 07/08/2009 | CN101478292A Radio frequency power amplifier circuit chip |
| 07/08/2009 | CN101478291A Radio frequency power amplifier circuit and radio frequency power amplifying method |
| 07/08/2009 | CN100512245C Adaptive equalizer with DC offset compensation |
| 07/08/2009 | CN100512017C Bit reversal sigma-delta modulator and class-D amplifier |
| 07/08/2009 | CN100511982C Amplitude variable driver circuit and testing apparatus |
| 07/08/2009 | CN100511981C Semiconductor integrated circuit and operational amplifier circuit |
| 07/08/2009 | CN100511980C Sampling speed converter and method thereof |
| 07/08/2009 | CN100511979C Power amplifying system and method for generating pre-distortion signals |
| 07/08/2009 | CN100511978C Transconductance amplifier, analog-to-digital converter and operating method thereof, and current generation method |
| 07/08/2009 | CN100511973C Voltage to current converter and method for converting |
| 07/08/2009 | CN100511972C High-efficiency amplifier |
| 07/08/2009 | CN100511970C System and method of RF power amplification |
| 07/08/2009 | CN100511959C DPS based intellectual high speed magnetic suspension control and analog power amplifying device |
| 07/07/2009 | US7558621 Synthesizing a reference value in an electrocardial waveform |
| 07/07/2009 | US7558332 Adaptive controller for linearization of transmitter with impairments |
| 07/07/2009 | US7557659 Slew-enhanced input stages and amplifiers |
| 07/07/2009 | US7557658 Low voltage amplifier having a class-AB control circuit |
| 07/07/2009 | US7557657 Variable gain amplifier with wide gain variation and wide bandwidth |
| 07/07/2009 | US7557652 Power amplifier system |
| 07/07/2009 | US7557651 Dual transconductance amplifiers and differential amplifiers implemented using such dual transconductance amplifiers |
| 07/07/2009 | US7557650 Electronic signal generator with modulated cyclic ratio, compensated for variations in its power supply voltage |
| 07/07/2009 | US7557334 Active pixel image sensor with common gate amplifier |
| 07/07/2009 | US7557333 Optical signal receiving circuit and optical signal receiving apparatus |
| 07/02/2009 | WO2009082582A2 Method and apparatus for direct digital to radio frequency conversion |
| 07/02/2009 | WO2009081743A1 Analog scan circuit, analog flip-flop, and data processing device |
| 07/02/2009 | WO2009080752A1 Multiport amplifiers in communications satellites |
| 07/02/2009 | WO2009080027A1 Two-channel amplifier with common signal |
| 07/02/2009 | WO2009079898A1 Average power efficiency enhancement and linearity improvement of microwave power amplifiers |
| 07/02/2009 | WO2009063373A3 Signal processor comprising an amplifier |
| 07/02/2009 | US20090167439 Amplifier and the method thereof |