| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 07/25/2006 | US7081791 Automatically adjusting low noise amplifier |
| 07/25/2006 | US7081789 Switched capacitor circuit compensation apparatus and method |
| 07/25/2006 | US7081785 Comparing circuit and offset compensating apparatus |
| 07/25/2006 | US7081774 Circuit having source follower and semiconductor device having the circuit |
| 07/20/2006 | WO2006076179A2 Bias compensation circuit for rf power amplifier |
| 07/20/2006 | WO2006075264A1 Signal processing arrangement and audio system for and method of frequency-dependent amplifying of the sound level of audio signals |
| 07/20/2006 | WO2006074974A1 Method and device for amplifying an amplitude- and phase-modulated electric signal |
| 07/20/2006 | WO2006053098B1 Method and apparatus for calibrating analog circuits using statistical techniques |
| 07/20/2006 | WO2006009651A3 Improved integrated circuit implementation for power and area efficient adaptive equalization |
| 07/20/2006 | WO2005107062A3 Servo balancing among driver devices |
| 07/20/2006 | WO2005104351A3 Multi-band low noise amplifier system |
| 07/20/2006 | US20060160501 Tunable microwave devices with auto-adjusting matching circuit |
| 07/20/2006 | US20060159198 Amplifier, information communication apparatus and amplification method |
| 07/20/2006 | US20060158911 Class E amplifier with inductive clamp |
| 07/20/2006 | US20060158258 Balanced single ended to differential signal converter |
| 07/20/2006 | US20060158257 Semiconductor circuit |
| 07/20/2006 | US20060158256 Amplifier circuit having an extended wilson current-mirror self-bias boosting circuit |
| 07/20/2006 | US20060158253 Multi-band power amplifier module for wireless communication devices |
| 07/20/2006 | US20060158252 Multi-band power amplifier module for wireless communication devices |
| 07/20/2006 | US20060158251 Multi-band power amplifier module for wireless communications |
| 07/20/2006 | US20060158250 Multi-band power amplifier module for wireless communication devices |
| 07/20/2006 | US20060158249 Linear amplifier and schmitt trigger using an analogue switch |
| 07/20/2006 | US20060158248 Dynamic pulse width modulation amplifiers |
| 07/20/2006 | US20060158247 Pwm digital amplifier with high-order loop filter |
| 07/20/2006 | US20060158246 Pwm digital amplifier with high-order loop filter |
| 07/20/2006 | US20060158245 PWM power amplifier and method for controlling the same |
| 07/20/2006 | US20060158242 Method and apparatus for extending the size of a transistor beyond one integrated circuit |
| 07/19/2006 | EP1680863A1 Efficient power supply for rapidily changing power requirements |
| 07/19/2006 | CN2798415Y Active simulated signal insulating amplifier |
| 07/19/2006 | CN1806386A Ouput power detection circuit |
| 07/19/2006 | CN1806385A Low-noise amplifier |
| 07/19/2006 | CN1806332A DC amplifier and semiconductor integrated circuit therefor |
| 07/19/2006 | CN1805619A Headphone and hands-free loudspeaker and its power amplifier and control circuit |
| 07/19/2006 | CN1805618A Bidirectional headphone and hands-free loudspeaker and power amplifier and control circuit for mobile audio devices |
| 07/19/2006 | CN1805617A Headphone and hands-free loudspeaker and power amplifier and control circuit for mobile audio devices |
| 07/19/2006 | CN1805616A Integrate three-voice coil loudspeaker and its power amplifier and control circuit |
| 07/19/2006 | CN1805615A Integrate three-pole and three-voice coil loudspeaker and its power amplifier and control circuit |
| 07/19/2006 | CN1805614A Dual magnet headphone and hands-free loudspeaker and power amplifier and control circuit for mobile audio devices |
| 07/19/2006 | CN1805274A Multi-chunnel, multi-power d kind amplifier with stabilized power |
| 07/19/2006 | CN1805273A Method for improving efficiency of power amplifier |
| 07/19/2006 | CN1805272A Circuit apparatus with different common mode I/O voltage |
| 07/19/2006 | CN1265549C Nonlinear distortion compensation power amplifier |
| 07/19/2006 | CN1265548C Operational amplifier device comprising static current control circuit |
| 07/18/2006 | US7080185 Bus control device altering drive capability according to condition |
| 07/18/2006 | US7079860 Semiconductor apparatus and communication apparatus |
| 07/18/2006 | US7079717 Control circuit for IEEE 1394b optical transmission protocol |
| 07/18/2006 | US7079590 DC-offset compensation |
| 07/18/2006 | US7079400 High-frequency circuit |
| 07/18/2006 | US7078976 High power Doherty amplifier |
| 07/18/2006 | US7078974 High frequency power amplifier circuit |
| 07/18/2006 | US7078973 Bipolar rail-to-rail output stage |
| 07/18/2006 | US7078972 Linear decibel-scale variable gain amplifier |
| 07/18/2006 | US7078971 Class AB CMOS amplifiers |
| 07/18/2006 | US7078970 CMOS class AB operational amplifier |
| 07/18/2006 | US7078969 Analog signal interpolation |
| 07/18/2006 | US7078968 Step gain-variable CMOS amplifier |
| 07/18/2006 | US7078965 Servo balancing among driver devices |
| 07/18/2006 | US7078964 Detection of DC output levels from a class D amplifier |
| 07/18/2006 | US7078963 Integrated PULSHI mode with shutdown |
| 07/18/2006 | US7078962 Dynamic current generator with asymmetric common-mode input range |
| 07/18/2006 | US7078941 Driving circuit for display device |
| 07/13/2006 | WO2006074480A2 Differential amplifier circuit and method for reducing thermally induced offsets caused by large differential signals |
| 07/13/2006 | WO2006073701A2 High efficiency switch-mode power amplifier |
| 07/13/2006 | WO2006073685A1 Power control circuit and method |
| 07/13/2006 | WO2006072984A1 Semiconductor amplifier |
| 07/13/2006 | WO2006072979A1 Semiconductor transistor |
| 07/13/2006 | US20060154504 Input circuit for vacuum electron device RF amplifier |
| 07/13/2006 | US20060153315 Lower complexity layered modulation signal processor |
| 07/13/2006 | US20060152287 Bias compensation circuit for RF power amplifier |
| 07/13/2006 | US20060152286 High-frequency amplifier |
| 07/13/2006 | US20060152284 Semiconductor device with high-breakdown-voltage regulator |
| 07/13/2006 | US20060152283 Circuit and method for avoiding circuit performance degradation caused by time-variable thermal imbalances |
| 07/13/2006 | US20060152282 Differential amplifier circuit and method for reducing thermally induced offsets caused by large differential signals |
| 07/13/2006 | US20060152281 Class-D amplifier with noise-immunity feedback |
| 07/13/2006 | US20060152279 Doherty microwave amplifier and signal processing method thereof |
| 07/13/2006 | US20060152278 Apparatus for controlling modulation of an alternating waveform on a DC voltage signal within a low-noise block controller |
| 07/13/2006 | US20060152277 Pulse modulated power converter |
| 07/13/2006 | US20060152264 Method of establishing a pwm-modulated output signal representation |
| 07/13/2006 | US20060152256 Push-pull buffer amplifier and source driver |
| 07/13/2006 | DE10213599B4 Lichtwellenleiterempfänger mit einem Nachverstärker mit einstellbarer Bandbreite Fiber optic receiver with a post-amplifier with adjustable bandwidth |
| 07/13/2006 | CA2592736A1 High efficiency switch-mode power amplifier |
| 07/12/2006 | EP1679790A1 Bias circuit |
| 07/12/2006 | EP1678821A1 Multi-primary distributed active transformer amplifier power supply and control |
| 07/12/2006 | EP1678820A1 Power amplifier and method for split voice coil transducer or speaker |
| 07/12/2006 | EP1678819A1 Method and apparatus for realizing a low noise amplifier |
| 07/12/2006 | EP1448890B1 High-frequency ignition for an internal combustion engine |
| 07/12/2006 | EP1417752B1 High-bandwidth low-voltage gain cell and voltage follower having an enhanced transconductance |
| 07/12/2006 | EP1320927A4 Power amplification for parametric loudspeakers |
| 07/12/2006 | CN2796245Y Power amplication circuit for power output wave form capable of automatic tracking input audio frequency signal wave form |
| 07/12/2006 | CN1802829A Method and system for switching mode power amplification |
| 07/12/2006 | CN1802792A Digital differential amplification control device |
| 07/12/2006 | CN1802789A Glitch-free controllable RF power amplifier |
| 07/12/2006 | CN1802788A Improved load and line regulation using operational transconductance amplifier and operational amplifier in tandem |
| 07/12/2006 | CN1802787A Output power control for a switching mode power amplifier |
| 07/12/2006 | CN1801974A 多载波基站放大器 Multicarrier base station amplifier |
| 07/12/2006 | CN1801973A Novel handheld telephone system base station amplifier |
| 07/12/2006 | CN1801606A 放大器和频率变换器 Amplifier and frequency converter |
| 07/12/2006 | CN1801605A Comparator using differential amplifier with reduced current consumption |
| 07/12/2006 | CN1801604A Signal processing circuit and communication device using the same |
| 07/12/2006 | CN1801603A Small-sized on-chip CMOS power amplifier having improved efficiency |