| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 06/28/2007 | DE19701067B4 Verfahren und Schaltungsanordnung zur Frequenzvervielfachung Method and circuit for frequency multiplication |
| 06/28/2007 | DE102006054763A1 Differenzverstärker, Phasen- und Verzögerungsregelkreisvorrichtung und Differenzverstärkungsverfahren Differential amplifier, phase and delay locked loop device and differential amplification method |
| 06/27/2007 | EP1801976A1 Sample hold circuit, and pipeline ad converter using the circuit |
| 06/27/2007 | EP1801968A1 Broadband balun structure |
| 06/27/2007 | EP1801965A1 Analog multistage amplification circuit in the field of sensor |
| 06/27/2007 | EP1801964A1 Method for correcting an analogue amplifier output signal, amplifier module and measurement device |
| 06/27/2007 | EP1800402A2 Spread frequency spectrum waveform generating circuit |
| 06/27/2007 | EP1800398A2 Unified analog input front end apparatus and method |
| 06/27/2007 | EP1800397A1 Rf input stage for low noise amplifier or mixer |
| 06/27/2007 | EP1800367A1 Reconfigurable radiation desensitivity bracket systems and methods |
| 06/27/2007 | EP1620942A4 Rf amplifier employing active load linearization |
| 06/27/2007 | EP1230734B1 Adaptive dead time control for push-pull switching circuits |
| 06/27/2007 | EP1214781B1 Low noise amplifier arrangement |
| 06/27/2007 | CN2915032Y DC digital amplifier for recording human or non-human tiny signal |
| 06/27/2007 | CN1989752A A transmitter and method for operating same |
| 06/27/2007 | CN1988372A 套筒式放大器 Telescopic amplifier |
| 06/27/2007 | CN1987711A 电源电路 The power supply circuit |
| 06/27/2007 | CN1987363A Method for correcting an analogue amplifier output signal, amplifier module and measurement device |
| 06/26/2007 | US7236802 Coupling device for interfacing power amplifier and antenna in differential mode |
| 06/26/2007 | US7236753 Direct outphasing modulator |
| 06/26/2007 | US7236542 Multi-mode envelope restoration architecture for RF transmitters |
| 06/26/2007 | US7236056 Direct current offset canceling circuit of trans-impedance amplifier and automatic gain control trans-impedance amplifier thereof |
| 06/26/2007 | US7236055 Differential amplifier circuit and method for reducing thermally induced offsets caused by large differential signals |
| 06/26/2007 | US7236054 Multi-operational amplifier system |
| 06/26/2007 | US7236053 High efficiency switch-mode power amplifier |
| 06/26/2007 | US7236015 Dynamic biasing circuit for continuous time comparators |
| 06/21/2007 | WO2007068688A1 Electronic circuit with compensation of intrinsic offset of differential pairs |
| 06/21/2007 | US20070141996 Distributed automatic gain control system |
| 06/21/2007 | US20070139531 System and methods for dynamic range extension using variable length integration time sampling |
| 06/21/2007 | US20070139123 Apparatus of Impedance Matching for Output Driver and Method Thereof |
| 06/21/2007 | US20070139122 Radio Frequency Power Delivery System |
| 06/21/2007 | US20070139121 Amplifier symmetric supply regulation |
| 06/21/2007 | US20070139120 RF amplifier with a bias boosting scheme |
| 06/21/2007 | US20070139117 Amplifier and communication apparatus |
| 06/21/2007 | US20070139116 Fully differential amplifier with continuous-time offset reduction |
| 06/21/2007 | US20070139115 CMOS amplifiers with frequency compensating capacitors |
| 06/21/2007 | US20070139114 Gain variable circuit and automatic gain control amplifier using the same |
| 06/21/2007 | US20070139113 Automatic gain control apparatus of cable modem, and lock-time acquisition method using the same |
| 06/21/2007 | US20070139112 Method and apparatus for stabilizing rf power amplifiers |
| 06/21/2007 | US20070139111 Buffer amplifier for source driver |
| 06/21/2007 | US20070139110 Transconductance circuit |
| 06/21/2007 | US20070139109 Class d amplifier with start-up click noise elimination |
| 06/21/2007 | US20070139106 Modified Doherty amplifier |
| 06/21/2007 | US20070139105 Doherty amplifier configuration for a collector controlled power amplifier |
| 06/21/2007 | US20070139104 Standby And Concurring System Of A Power Amplifier And Method For Power Amplifying |
| 06/21/2007 | US20070139103 Quiet power up and power down of a digital audio amplifier |
| 06/21/2007 | US20070139084 Amplifier circuit having constant output swing range and stable delay time |
| 06/21/2007 | DE102005060365A1 Verfahren und Vorrichtung zur Überlastregelung einer Synchronisationsschleife Method and apparatus for congestion control of a synchronization loop |
| 06/20/2007 | EP1798856A1 Power amplifier with bypass path |
| 06/20/2007 | EP1798855A2 Class D Amplifier |
| 06/20/2007 | EP1798854A1 Enhanced low noise amplifier |
| 06/20/2007 | EP1798852A2 Distortion compensation |
| 06/20/2007 | EP1798627A1 Constant voltage generating circuit |
| 06/20/2007 | CN1985438A Plop noise avoidance for an amplifier |
| 06/20/2007 | CN1983803A D类放大器 Class D Amplifier |
| 06/20/2007 | CN1983802A RF amplifier circuit and operation method thereof |
| 06/20/2007 | CN1983801A Predistortion system and amplifier for compensating for group delay modulation |
| 06/20/2007 | CN1322669C Optimized design method of microwave amplifying circuit |
| 06/20/2007 | CN1322482C Current driver |
| 06/19/2007 | US7233780 Method and apparatus for performing DC offset cancellation in a receiver |
| 06/19/2007 | US7233466 Input protection circuit |
| 06/19/2007 | US7233209 Integrated preamplifier circuit for detecting a signal current from a photodiode |
| 06/19/2007 | US7233208 Bias compensation circuit for RF power amplifier |
| 06/19/2007 | US7233207 System and method for providing an input to a distributed power amplifying system |
| 06/19/2007 | US7233206 Semiconductor integrated circuit device and wireless communication system |
| 06/19/2007 | US7233205 Transistor biasing independent of inductor voltage drop |
| 06/19/2007 | US7233204 Method of acquiring low distortion and high linear characteristic in triode-typed transconductor |
| 06/19/2007 | US7233203 Differential amplifier |
| 06/19/2007 | US7233202 Amplifier with increased bandwidth and method thereof |
| 06/19/2007 | US7233201 Single-ended pseudo-differential output driver |
| 06/19/2007 | US7233199 Circuit and method of establishing DC bias levels in an RF power amplifier |
| 06/19/2007 | US7233198 Phase corrected miller compensation of chopper and nested chopper amplifiers |
| 06/19/2007 | US7233190 Voltage subtracting circuit carrying out voltage subtraction by converting input voltage into current, intensity detecting circuit, and semiconductor integrated circuit device using the same |
| 06/19/2007 | US7233175 Amplitude limiting circuit |
| 06/19/2007 | US7233172 Differential amplifier circuit capable of accurately amplifying even high-speeded signal of small amplitude |
| 06/19/2007 | US7233171 Apparatus and method for transconductance stage with high current response to large signals |
| 06/14/2007 | WO2007065325A1 Thermal backup of power amplifier and mutual aid system |
| 06/14/2007 | WO2007048221A3 Apparatus for variable gain amplifiers and mixers |
| 06/14/2007 | WO2007020404A9 Feedback controller for pwm amplifier |
| 06/14/2007 | WO2005107063A8 Bypass circuit |
| 06/14/2007 | US20070135701 Sensor system for measuring an electric potential signal of an object |
| 06/14/2007 | US20070135072 Wireless communication system |
| 06/14/2007 | US20070135067 Apparatus for configuring portable communication system using multipath power amplifier |
| 06/14/2007 | US20070132686 Semiconductor Device, and Display Device and Electronic Device Utilizing the Same |
| 06/14/2007 | US20070132514 Power device having connection structure compensating for reactance component of transmission line |
| 06/14/2007 | US20070132511 Gain adjusting and circuit arrangement |
| 06/14/2007 | US20070132509 Class d amplifier |
| 06/14/2007 | US20070132508 Multi-phase power supply controller and method therefor |
| 06/14/2007 | US20070132505 Reference voltage generation circuit |
| 06/14/2007 | US20070131848 Measuring apparatus, transfer circuit, and measuring method |
| 06/14/2007 | US20070131847 Optical detector |
| 06/13/2007 | EP1796203A1 Frequency Switch for multiband power amplifier applications and multiband/multistandard power amplifier module |
| 06/13/2007 | EP1794891A1 High frequency wireless receiver circuits and methods |
| 06/13/2007 | EP1794882A2 Programmable low noise amplifier and method |
| 06/13/2007 | EP1794881A1 An amplifier coupling on a reduced area |
| 06/13/2007 | EP1794878A1 Gate bias generator |
| 06/13/2007 | EP1604455B1 Three state class d amplifier |
| 06/13/2007 | EP1384285B1 Ferroelectric antenna and method for tuning same |
| 06/13/2007 | EP0885457A4 Method for making a circuit structure having a flip-mounted matrix of devices |
| 06/13/2007 | CN1981432A Current-mode instrumentation amplifier gain error correction circuitry |