| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 01/30/2007 | US7171011 Acoustic drive circuit |
| 01/30/2007 | US7170951 Device and method for predistorting a transmission signal to be transmitted via a nonlinear transmission path |
| 01/30/2007 | US7170701 Amplifier with a strong output current |
| 01/30/2007 | US7170360 Device and method for digital pulse width modulation |
| 01/30/2007 | US7170353 Balanced amplifier circuit and high-frequency communication apparatus |
| 01/30/2007 | US7170352 Apparatus and method for dynamic time-dependent amplifier biasing |
| 01/30/2007 | US7170351 Differential AB class amplifier circuit and drive circuit using the same |
| 01/30/2007 | US7170350 Gain adjusting and circuit arrangement |
| 01/30/2007 | US7170349 Low voltage broadband gain cell |
| 01/30/2007 | US7170348 Differential amplifying circuit |
| 01/30/2007 | US7170347 Offset trim circuit and method for a constant-transconductance rail-to-rail CMOS input circuit |
| 01/30/2007 | US7170342 Linear power amplification method and linear power amplifier |
| 01/30/2007 | US7170341 Low power consumption adaptive power amplifier |
| 01/30/2007 | US7170340 Apparatus and method for a class D audio power amplifier with a higher-order sigma-delta topology |
| 01/30/2007 | US7170339 Digital amplifier |
| 01/30/2007 | US7170266 Balanced, floating, spread-spectrum pulse width modulator circuit |
| 01/25/2007 | WO2007011012A1 Power amplification device |
| 01/25/2007 | WO2007010742A1 Class d power amplifier |
| 01/25/2007 | WO2006127855A3 Fast setting, low noise, low offset operational amplifier and method |
| 01/25/2007 | US20070018730 Apparatus and method reducing non-linearity in an output signal of an amplifier device |
| 01/25/2007 | US20070018728 Method and system for providing multi-carrier synthesis |
| 01/25/2007 | US20070018727 Variable gain amplifier and wireless communication apparatus including the same |
| 01/25/2007 | US20070018726 Differential circuit, output buffer circuit and semiconductor integrated circuit for a multi-power system |
| 01/25/2007 | US20070018725 Variable transconductance circuit |
| 01/25/2007 | US20070018724 Integration improvement technique for switching amplifiers |
| 01/25/2007 | US20070018720 High efficiency amplifier circuits having bypass paths |
| 01/25/2007 | US20070018718 Microwave transmitter and the method for increasing envelope bandwidth |
| 01/25/2007 | US20070018630 Transistor arrangement with temperature compensation and method for temperature compensation |
| 01/25/2007 | US20070018507 Device and method for mixing circuits |
| 01/25/2007 | US20070018079 Light-receiving amplifier circuit and optical pick-up device using the same |
| 01/25/2007 | US20070018078 Electronic circuit, electronic device, method of driving electronic device, electro-optical device, and electronic apparatus |
| 01/24/2007 | CN2862541Y Multiple carrier base station amplifier |
| 01/24/2007 | CN2862500Y Square wave modulated D type frequency amplifier |
| 01/24/2007 | CN1902816A High-frequency amplifier |
| 01/24/2007 | CN1901374A Differential cascode current mode driver |
| 01/24/2007 | CN1901364A High accuracy low distorsin pulse power amplifying circuit |
| 01/24/2007 | CN1901363A Light-receiving amplifier circuit and optical pick-up device using the same |
| 01/24/2007 | CN1901362A Adaptive digital pre-distortion system |
| 01/24/2007 | CN1901361A Wave detection circuit of IS 95 and EVDO in separating CDMA signals |
| 01/23/2007 | US7167055 Voltage level detector for power amplifier protection control |
| 01/23/2007 | US7167054 Reconfigurable power control for a mobile terminal |
| 01/23/2007 | US7167053 Integrated circuit amplifier device and method using FET tunneling gate current |
| 01/23/2007 | US7167052 Low voltage differential amplifier circuit for wide voltage range operation |
| 01/23/2007 | US7167051 Current-mode instrumentation amplifier |
| 01/23/2007 | US7167050 Operational amplifier having large output current with low supply voltage |
| 01/23/2007 | US7167049 OP-amplifier with an offset voltage cancellation circuit |
| 01/23/2007 | US7167048 Method and apparatus for reducing ripple in class D amplifiers |
| 01/23/2007 | US7167047 Multi-channel power amplifier self-configuring to a bridge or single-ended output, particularly for audio applications |
| 01/23/2007 | US7167046 Class-D amplifier |
| 01/23/2007 | US7167045 System and method for modifying output power of an information communication system |
| 01/23/2007 | US7167044 Dual-band CMOS front-end with two gain modes |
| 01/23/2007 | US7167041 Voltage buffer for capacitive loads |
| 01/18/2007 | WO2007008349A1 Two stage microwave class e power amplifier |
| 01/18/2007 | WO2007007765A1 Current-voltage conversion circuit and power consumption detection circuit and electronic device using the same |
| 01/18/2007 | WO2007006868A1 Improvements for integrated rf circuits |
| 01/18/2007 | US20070015475 Power saving in a transmitter |
| 01/18/2007 | US20070015473 Modulator-amplifier |
| 01/18/2007 | US20070013441 Input matching apparatus and method for power amplifier using delta-sigma modulated signal |
| 01/18/2007 | US20070012869 Low power glare sensor |
| 01/18/2007 | US20070012867 Systems, circuits and methods for extending the detection range of an inspection system by avoiding circuit saturation |
| 01/18/2007 | DE10251308B4 Integrierte geschaltete Kondensatorschaltung und Verfahren Integrated switched capacitor circuit and method |
| 01/18/2007 | DE102005032093A1 Verstärkeranordnung und Verfahren zur Signalverstärkung Amplifier arrangement and method for signal amplification |
| 01/18/2007 | DE102005031119A1 Schaltungsanordnung mit niedriger Transkonduktanz Circuit with lower transconductance |
| 01/18/2007 | DE10005044B4 Hochgeschwindigkeits-Stromspiegelschaltkreis und -verfahren High-speed current mirror circuit and method |
| 01/17/2007 | EP1744604A1 Amplifier with feedback bridge |
| 01/17/2007 | EP1744449A1 Amplifier, information communication apparatus and amplifying method |
| 01/17/2007 | EP1744448A1 Radio frequency amplifiers |
| 01/17/2007 | EP1743420A1 High speed rail to rail phase splitter for providing a symmetrical differential output signal having low skew |
| 01/17/2007 | CN1898872A A switched capacitor circuit compensation apparatus and method |
| 01/17/2007 | CN1898861A Radio frequency (rf) and/or microwave power amplification device and corresponding radio communication terminal |
| 01/17/2007 | CN1898860A 层叠的rf功率放大器 Stacked rf power amplifier |
| 01/17/2007 | CN1295866C Boosted high-gain, very wide common mode range, self-biased operational amplifier |
| 01/17/2007 | CN1295865C Class E/F switching power amplifiers |
| 01/17/2007 | CN1295864C Apparatus and method for efficiently amplifying wideband envelope signals |
| 01/17/2007 | CN1295863C Distortion compensating circuit and emitting appts. contg. same |
| 01/17/2007 | CN1295862C Multi-level power amplifier |
| 01/16/2007 | US7164321 Modulation dependent biasing for efficient and high linearity power amplifiers |
| 01/16/2007 | US7164320 Current threshold circuit |
| 01/16/2007 | US7164317 Apparatus and method for a low-voltage class AB amplifier with split cascode |
| 01/16/2007 | US7164316 Series-Type Doherty Amplifier Without Hybrid Coupler |
| 01/16/2007 | US7164298 Slew rate enhancement circuit via dynamic output stage |
| 01/11/2007 | WO2007005407A2 Switched capacitor system with and method for output glitch reduction |
| 01/11/2007 | WO2007005150A2 System for reducing calibration time of a power amplifier |
| 01/11/2007 | WO2007004518A1 Transmission circuit and communication device |
| 01/11/2007 | WO2007004432A1 Current converting method, transconductance amplifier and filter circuit using the same |
| 01/11/2007 | WO2007003224A1 Compensation for parasitic coupling between rf or microwave transistors in the same package |
| 01/11/2007 | WO2007003170A1 Circuit arrangement with low transconductance |
| 01/11/2007 | WO2006111892A3 A parallel arranged linear amplifier and dc-dc converter |
| 01/11/2007 | WO2006076179A3 Bias compensation circuit for rf power amplifier |
| 01/11/2007 | US20070008039 Apparatus and method for reducing drain modulation of high power transistor |
| 01/11/2007 | US20070008038 Power amplifier arrangement, particularly for mobile radio, and method for determining a performance parameter |
| 01/11/2007 | US20070008037 High frequency power amplifier circuit and radio communication system |
| 01/11/2007 | US20070008036 Miller-compensated amplifier |
| 01/11/2007 | US20070008035 Wide-Band High-Gain Limiting Amplifier with Parallel Resistor-Transistor Source Loads |
| 01/11/2007 | US20070008034 Two stage microwave Class E power amplifier |
| 01/11/2007 | US20070008031 Method and device for correcting signal distortions in an amplifier device |
| 01/11/2007 | US20070007437 Amplification with feedback capacitance for photodetector signals |
| 01/10/2007 | EP1742352A2 Update systems for an audio amplifier |
| 01/10/2007 | EP1742268A2 Radio architecture |
| 01/10/2007 | EP1742267A2 Radio architecture |