| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 05/29/2007 | US7224231 Method for transforming output signals of a low-noise amplifier of a wireless transceiver |
| 05/29/2007 | US7224230 Bias circuit with mode control and compensation for voltage and temperature |
| 05/29/2007 | US7224229 Electronic signal amplifier and method and article for determining the gain of such an amplifier |
| 05/29/2007 | US7224228 Semiconductor integrated circuit for high frequency power amplifier, electronic component for high frequency power amplifier, and radio communication system |
| 05/29/2007 | US7224227 Apparatus and method for correction of error caused by reverse saturation current mismatch |
| 05/29/2007 | US7224226 Amplifying device |
| 05/29/2007 | US7224225 Differential inductor based low noise amplifier |
| 05/29/2007 | US7224224 Thin film semiconductor device and manufacturing method |
| 05/29/2007 | US7224223 Feed-forward power amplifier |
| 05/29/2007 | US7224221 Power amplification apparatus, and mobile communication terminal apparatus |
| 05/29/2007 | US7224219 Modulator-amplifier |
| 05/29/2007 | US7224218 Pre-charge apparatus and method for controlling startup transients in a capacitively-coupled switching power stage |
| 05/29/2007 | US7224217 Switching amplifier |
| 05/29/2007 | US7224216 Segmented chopping amplifier |
| 05/29/2007 | US7224010 Voltage-controlled amplifier for a signal processing system |
| 05/29/2007 | US7223957 Sensor including circuitry for recovering time-varying information and removing DC offsets |
| 05/29/2007 | CA2311475C An amplifier and a method of power amplification |
| 05/24/2007 | WO2007059484A2 Linear rf transmitter and method of operation |
| 05/24/2007 | WO2007059162A2 Unipolar electric pulse generator |
| 05/24/2007 | WO2007057622A1 Amplifier |
| 05/24/2007 | WO2007056949A1 A digital power amplifier applied to low voltage carrier communication |
| 05/24/2007 | WO2006105533A3 Detector diodes with bias control loop |
| 05/24/2007 | WO2005119905A3 Linearity enhanced amplifier |
| 05/24/2007 | US20070117531 Clock receiver circuit device, in particular for semi-conductor components |
| 05/24/2007 | US20070116156 Layered modulation for digital signals |
| 05/24/2007 | US20070115068 Method and apparatus for generating an optimized reference current threshold |
| 05/24/2007 | US20070115067 Output amplifier structure with bias compensation |
| 05/24/2007 | US20070115066 Radio-frequency amplifier and radio-frequency wireless communication apparatus |
| 05/24/2007 | US20070115065 Stabilization circuit and multiband amplification circuit |
| 05/24/2007 | US20070115064 Power amplifying device comprising a stabilizing circuit |
| 05/24/2007 | US20070115063 Resonant amplifier |
| 05/24/2007 | US20070115062 Bias circuit for power amplifier operated by a low external reference voltage |
| 05/24/2007 | US20070115060 Power conversion regulator with exponentiating feedback loop |
| 05/24/2007 | US20070115059 Analog signal processing circuit |
| 05/24/2007 | US20070115058 Variable gain amplifier having linear-in-decibel transconductance |
| 05/24/2007 | US20070115057 Variable gain device |
| 05/24/2007 | US20070115056 Operational amplifier and scanning electron microscope using the same |
| 05/24/2007 | US20070115055 Method and apparatus for implementing soft switching in a class d amplifier |
| 05/24/2007 | US20070115054 Miniature dual band power amplifier with reserved pins |
| 05/24/2007 | US20070115053 Method and arrangement for optimizing efficiency of a power amplifier |
| 05/24/2007 | US20070115050 Circuit configuration having a feedback, fully-differential operational amplifier |
| 05/24/2007 | US20070115049 Operational amplifier and related noise separation method thereof |
| 05/24/2007 | US20070115047 Differential amplifier arrangement |
| 05/24/2007 | CA2629626A1 Unipolar electric pulse generator |
| 05/23/2007 | EP1788724A1 A hand-held equipment for prolonging operating time and implentation method thereof |
| 05/23/2007 | EP1788701A1 Class-D audio amplifier |
| 05/23/2007 | EP1788700A1 Method for double sampling loop negative feedback and double sampling negative feedback amplifier |
| 05/23/2007 | EP1787388A2 Methods and apparatus for variable harmonic distortion |
| 05/23/2007 | EP1787387A1 A method and apparatus for pre-conditioning an electrical signal |
| 05/23/2007 | EP1787386A1 An amplifier apparatus and method |
| 05/23/2007 | EP1573901B1 Amplifier circuit having an extended wilson current-mirror self-bias boosting circuit |
| 05/23/2007 | EP1425852A4 Rf power amplifier transistor quiescent current checking and adjusting |
| 05/23/2007 | EP1277274B1 An accurate power detection circuit for use in a power amplifier |
| 05/23/2007 | CN1969454A Method and device for amplifying an amplitude- and phase-modulated electric signal |
| 05/23/2007 | CN1968009A System for dynamic time offsetting in interleaved power amplifiers |
| 05/23/2007 | CN1968008A Amplifiers with compensation |
| 05/23/2007 | CN1968007A Digital power amplifier adapted for low-voltage carrier communication |
| 05/23/2007 | CN1317883C Adaptive bandwidth control in a kinescope amplifier |
| 05/22/2007 | US7221766 Microphone input buffer biasing circuit |
| 05/22/2007 | US7221327 Tunable matching circuit |
| 05/22/2007 | US7221229 Receiver circuit having an optical reception device |
| 05/22/2007 | US7221228 Radio frequency power amplifier module |
| 05/22/2007 | US7221224 Differential amplifier circuit |
| 05/22/2007 | US7221220 Method and apparatus for low-frequency bypass in broadband RF circuitry |
| 05/22/2007 | US7221219 Composite amplifier structure |
| 05/22/2007 | US7221218 MOSFET amplifier having feedback controlled transconductance |
| 05/22/2007 | US7221217 Self-bias and digitally tunable conduction angle circuits for a differential RF non-linear power amplifier employing low-voltage transistors |
| 05/22/2007 | US7221216 Self-oscillating switching amplifier |
| 05/22/2007 | US7221214 Delay value adjusting method and semiconductor integrated circuit |
| 05/22/2007 | US7221210 Fuse sense circuit |
| 05/18/2007 | WO2007056315A2 Power conversion regulator with exponentiating feedback loop |
| 05/18/2007 | WO2007056314A2 Power conversion regulator with predictive energy balancing |
| 05/18/2007 | WO2007055248A1 Current source circuit |
| 05/18/2007 | WO2007054609A1 Method and arrangement for optimizing efficiency of a power amplifier |
| 05/18/2007 | WO2007054209A1 Switched-capacitor amplifier arrangement and method |
| 05/18/2007 | CA2626428A1 Power conversion regulator with exponentiating feedback loop |
| 05/18/2007 | CA2626360A1 Power conversion regulator with predictive energy balancing |
| 05/17/2007 | US20070109174 Amplifier circuit and analog-to-digital circuit using the same |
| 05/17/2007 | US20070109057 Amplifiers with compensation |
| 05/17/2007 | US20070109056 Amplifier circuit, and system incorporating same |
| 05/17/2007 | US20070109054 Signal amplification through an electromagnetic device |
| 05/17/2007 | US20070109052 Class ab enhanced transconductance source follower |
| 05/17/2007 | US20070109051 High-bandwidth high-gain amplifier |
| 05/17/2007 | US20070109050 Power supply rejection for pulse width modulated amplifiers and automatic gain control |
| 05/17/2007 | US20070109049 Filterless class d power amplifier |
| 05/17/2007 | US20070109048 Class D amplifier and infrared data receiving apparatus using the same |
| 05/17/2007 | US20070109045 Power amplifying apparatus |
| 05/17/2007 | US20070109044 Power conversion system |
| 05/17/2007 | US20070109042 Measuring circuit for the output of a power amplifier and a power amplifier comprising the measuring circuit |
| 05/17/2007 | US20070109024 Latch type sense amplifier |
| 05/17/2007 | US20070108375 Amplification with feedback capacitance for photodetector signals |
| 05/17/2007 | US20070108374 Photocurrent amplifier circuit and optical pick-up device |
| 05/16/2007 | CN2901697Y High voltage broad band pulse amplifier |
| 05/16/2007 | CN1965472A Method and apparatus for DOHERTY amplifier biasing |
| 05/16/2007 | CN1964184A An amplifier for analog-digital converter |
| 05/16/2007 | CN1316735C Operational amplifier circuit, operational amplifier circuit and filter circuit using the operational amplifier circuit |
| 05/16/2007 | CN1316734C Inter-stage coupling in multistage amplifiers |
| 05/16/2007 | CN1316672C High-frequency circuit |
| 05/16/2007 | CN1316619C Internal power for IC with temp. compensating pedestal generator |
| 05/15/2007 | US7218954 LPA shelf and LPA type switching method for a mobile communication base station |