| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 01/02/2014 | US20140002187 Integrated rf front end system |
| 01/02/2014 | US20140001341 Integrated optical biosensor array |
| 01/02/2014 | DE102011077566B4 LNA-Schaltkreis zum Gebrauch in einem kostengünstigen Receiver-Schaltkreis LNA circuit for use in a low cost receiver circuit |
| 01/01/2014 | EP2680437A2 Photoelectric sensor and method for controlling amplification of received light intensity in photoelectric sensor |
| 01/01/2014 | CN203377845U Optoelectronic signal amplification and transmission circuit for computer |
| 01/01/2014 | CN103493507A 数字扬声器系统 Digital Speaker System |
| 01/01/2014 | CN103493368A Apparatus and methods for envelope tracking calibration |
| 01/01/2014 | CN103493366A Analog multiplier circuit, variable gain amplifier, detector circuit, and physical quantity sensor |
| 01/01/2014 | CN103490736A Four-port differential amplification circuit |
| 01/01/2014 | CN103490735A High-frequency amplifier |
| 01/01/2014 | CN102255606B Solid-state RF (radio frequency) power supply based on E-power amplifying circuit |
| 12/31/2013 | US8618884 High-frequency signal processing device |
| 12/31/2013 | US8618883 N-way doherty distributed power amplifier with power tracking |
| 12/31/2013 | US8618882 Variable gain amplifier |
| 12/31/2013 | US8618881 Class-D power amplifier |
| 12/31/2013 | US8618878 Multiport amplifier and wireless device using the same |
| 12/31/2013 | US8618877 Pilot signal generation circuit |
| 12/31/2013 | US8618875 Using a new synchronization scheme for a multi-channel class-D amplifier |
| 12/27/2013 | WO2013191757A1 Inverter/power amplifier with capacitive energy transfer and related techniques |
| 12/26/2013 | US20130344838 Low-noise amplifiers for rf receiver |
| 12/26/2013 | US20130344825 Process-compensated hbt power amplifier bias circuits and methods |
| 12/26/2013 | US20130342275 Transimpedance amplifier |
| 12/26/2013 | US20130342274 Dc-coupled peak detector |
| 12/26/2013 | US20130342273 Electronic Circuit for Adjusting an Offset of a Differential Amplifier |
| 12/26/2013 | US20130342272 Signal Amplifiers that Switch to an Attenuated or Alternate Communications Path in Response to a Power Interruption |
| 12/26/2013 | US20130341192 Compensated patch-clamp amplifier for nanopore polynucleotide sequencing and other applications |
| 12/25/2013 | EP2509217B1 Method for amplifying an RF signal and tuneable RF power amplifier device |
| 12/25/2013 | EP2506425B1 Source or emitter follower buffer circuit and method |
| 12/25/2013 | EP2425527B1 Wireless communication device and semiconductor package device having a power amplifier therefor |
| 12/25/2013 | EP2424108B1 Amplifying circuit |
| 12/25/2013 | EP1368891B1 Iq modulator |
| 12/25/2013 | CN203368411U Annunciator amplification-demodulation circuit for broadband dynamically-tuned gyroscope |
| 12/25/2013 | CN203368410U Pre-amplification circuit capable of realizing automatic gain adjustment for current output-type sensor |
| 12/25/2013 | CN203368409U D-type power amplifier for power line carrier signal transmitting end |
| 12/25/2013 | CN203368407U Pre-amplification circuit capable of realizing automatic gain adjustment for voltage output-type sensor |
| 12/25/2013 | CN203368406U Front-end charge amplifier and system for MEMS equipment |
| 12/25/2013 | CN203368405U Two-way noise cancelling-type current multiplex low-noise amplifier |
| 12/25/2013 | CN203368403U Integrated power amplifier for audio system of computer |
| 12/25/2013 | CN103477558A 半导体集成电路装置及高频功率放大器模块 Semiconductor integrated circuit device and a high-frequency power amplifier module |
| 12/25/2013 | CN103477557A Pseudo-envelope follower power management system with high frequency ripple current compensation |
| 12/25/2013 | CN103477556A Method and apparatus for keeping static current of power amplifier constant |
| 12/25/2013 | CN103475325A Amplification circuit |
| 12/25/2013 | CN103475324A Audio amplification output circuit |
| 12/25/2013 | CN103475323A Power amplifier |
| 12/25/2013 | CN103475322A Output amplifier |
| 12/25/2013 | CN103475321A Power amplifier |
| 12/25/2013 | CN103475320A Electronic device comprising RF-LDMOS transistor having improved ruggedness |
| 12/25/2013 | CN103475319A Integrable ultrahigh frequency broadband ultra linear amplifier and manufacturing method thereof |
| 12/25/2013 | CN103475318A Photoelectric signal amplification circuit for photometric system |
| 12/25/2013 | CN103473029A Multiplier |
| 12/25/2013 | CN102497169B Gain self-correction circuit and optical fiber transimpedance amplifier with same |
| 12/25/2013 | CN102013877B Transconductance amplifier for reducing compensation capacitance |
| 12/24/2013 | US8614604 Amplifier inductor sharing for inductive peaking |
| 12/24/2013 | US8614603 Auto leveling receiver |
| 12/24/2013 | US8614602 Differential amplifier |
| 12/19/2013 | WO2013188712A1 Power amplifier modules including related systems, devices, and methods |
| 12/19/2013 | WO2013188694A1 Process-compensated hbt power amplifier bias circuits and methods |
| 12/19/2013 | WO2013113636A3 Low-noise amplifier |
| 12/19/2013 | US20130337619 Compound semiconductor device and method for manufacturing the same |
| 12/19/2013 | US20130336650 Enhanced Received Signal Power Indicators for Optical Receivers and Transceivers, and Methods of Making and Using the Same |
| 12/19/2013 | US20130336066 Sense amplifier circuit |
| 12/19/2013 | US20130335147 Power Amplifier and Linearization Techniques Using Active and Passive Devices |
| 12/19/2013 | US20130335145 High-speed transimpedance amplifier |
| 12/19/2013 | US20130335144 Apparatus and methods for notch filtering |
| 12/19/2013 | US20130335143 Class-d power amplifier capable of reducing electromagnetic interference and triangular wave generator thereof |
| 12/19/2013 | US20130335141 Apparatus and methods for electronic amplification |
| 12/19/2013 | US20130334985 Output buffer circuit, devices including the same, and operating method of the output buffer circuit |
| 12/19/2013 | DE102013211551A1 System und verfahren für geboostete schalter System and method for boosted switch |
| 12/19/2013 | DE102013106125A1 Vorrichtung und Verfahren zur Kerbfilterung Apparatus and method for notch filtering |
| 12/19/2013 | DE102013106124A1 Vorrichtung und Verfahren zur elektronischen Verstärkung Apparatus and method for electronic amplification |
| 12/19/2013 | DE102012210249A1 Verstärkeranordnung Amplifier arrangement |
| 12/18/2013 | EP2673881A2 Apparatus and methods for envelope tracking calibration |
| 12/18/2013 | CN203352544U Detuning compensation active load |
| 12/18/2013 | CN203352543U Frequency-tracking chip and circuit board comprising same |
| 12/18/2013 | CN203352542U Power amplifier |
| 12/18/2013 | CN203352540U Continuous time common mode feedback circuit applied to high-speed fully differential operational amplifier |
| 12/18/2013 | CN103460598A Amplifier and audio device provided with amplifier |
| 12/18/2013 | CN103457672A Plastic optical fiber receiver with differential input of double photodiodes and achieving method |
| 12/18/2013 | CN103457557A Power amplifier and control method thereof |
| 12/18/2013 | CN103457555A Millimeter wave amplifier unilateralization network using on-chip transformer with random coupling coefficient |
| 12/18/2013 | CN103457554A Rail-to-rail operation amplifier |
| 12/18/2013 | CN103457553A Gain and slew rate enhancement type amplifier |
| 12/18/2013 | CN103457552A Amplification circuit for laser distance measuring receiving system |
| 12/18/2013 | CN103457551A Design method for radio frequency power amplifier broadband matching circuit and smith chart used by design method |
| 12/18/2013 | CN103457550A Radio-frequency power amplifier and mobile terminal thereof |
| 12/18/2013 | CN103457549A Tri-band radio frequency power amplifier and impedance matching method of matching network of tri-band radio frequency power amplifier |
| 12/18/2013 | CN101924572B 通信方法和通信系统 Communication method and communication system |
| 12/17/2013 | US8611561 First stage audio amplifier with clamping circuit |
| 12/17/2013 | US8610507 Power amplifier |
| 12/17/2013 | US8610506 Amplifier circuit |
| 12/17/2013 | US8610504 Dual band amplifier |
| 12/17/2013 | US8610503 Apparatus and methods for oscillation suppression |
| 12/17/2013 | US8610502 Re-configurable amplifier |
| 12/17/2013 | US8610501 Class resonant-H electrosurgical generators |
| 12/17/2013 | US8610497 System and method for capacitive signal source amplifier |
| 12/17/2013 | US8610484 Bipolar transistor anti-saturation clamp using auxiliary bipolar stage, and method |
| 12/17/2013 | US8610046 Image readout circuit with capacitor that is shared between sample and hold and buffer |
| 12/17/2013 | CA2516302C N-way rf power amplifier circuit with increased back-off capability and power added efficiency using unequal input power division |
| 12/12/2013 | WO2013183097A1 Distributed amplifier and amplifier module utilizing same |
| 12/12/2013 | US20130331048 Harmonic trap circuit for linear differential power amplifiers |