| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 09/21/2005 | CN1672323A Feedback amplifier having amplified signal path and feedback signal path separated |
| 09/21/2005 | CN1672322A 功率放大器 PA |
| 09/21/2005 | CN1672110A Band-gap reference circuit |
| 09/21/2005 | CN1671045A Class-D line driver arrangement |
| 09/21/2005 | CN1671044A Method and apparatus for self-adaptive cancellation control of feedforward linear power amplifier optimizing model |
| 09/21/2005 | CN1671043A High-frequency power amplifier and communication apparatus |
| 09/21/2005 | CN1671042A Biasing circuit for field-effect transistor |
| 09/21/2005 | CN1671040A Low noise operational amplifier |
| 09/21/2005 | CN1670858A Single inline memory module |
| 09/21/2005 | CN1220371C Shock sound prevention circuit |
| 09/21/2005 | CN1220327C Feedforward amplifier and power amplifying method using feedforward amplifier |
| 09/21/2005 | CN1220171C Data drive circuit of current writing-in active matrix organic electroluminescence displaying panel |
| 09/20/2005 | US6947712 Group delay precompensator for broadband radio frequency transmitter and method of operating the same |
| 09/20/2005 | US6947567 Audio boost circuit |
| 09/20/2005 | US6947548 Driver circuit for subscriber terminals |
| 09/20/2005 | US6946934 Transmission line and semiconductor integrated circuit device |
| 09/20/2005 | US6946914 Ultra-wideband constant gain CMOS amplifier |
| 09/20/2005 | US6946913 High frequency amplifier circuit |
| 09/20/2005 | US6946912 MMIC distributed amplifier gate control using active bias |
| 09/20/2005 | US6946911 Temperature-insensitive bias circuit for high-power amplifiers |
| 09/20/2005 | US6946909 Impedance matched low noise amplifier |
| 09/20/2005 | US6946908 Programmable radio frequency predistortion linearizer and method thereof |
| 09/20/2005 | US6946907 Common mode feedback amplifier |
| 09/20/2005 | US6946906 System and method of pilot tone reuse in a feedforward amplifier |
| 09/20/2005 | US6946905 Offset cancel circuit of voltage follower equipped with operational amplifier |
| 09/20/2005 | US6946895 Mixer device including an amplifier circuit |
| 09/20/2005 | US6946890 Low noise level shifting circuits and methods and systems using the same |
| 09/20/2005 | US6946849 Circuit for calibrating a resistance |
| 09/20/2005 | US6946804 Display device |
| 09/15/2005 | WO2005086360A1 Load insensitive power amplifier |
| 09/15/2005 | WO2005086356A1 Signal processing device and method, signal processing program, and recording medium where the program is recorded |
| 09/15/2005 | WO2005086344A1 Pilot signal detecting circuit, and semiconductor integrated circuit incorporating that circuit |
| 09/15/2005 | WO2005085764A2 Series bridge circuit |
| 09/15/2005 | WO2005085663A1 Magnetic bearing and turbo-molecular pump having it |
| 09/15/2005 | US20050202796 Radio-controlled clock and method for gaining time information |
| 09/15/2005 | US20050202789 Transmitter and transceiver |
| 09/15/2005 | US20050200426 Off-chip LC circuit for lowest ground and VDD impedance for power amplifier |
| 09/15/2005 | US20050200425 System method and apparatus for a three-line balun with power amplifier bias |
| 09/15/2005 | US20050200421 Transimpedance amplifier with differential peak detector |
| 09/15/2005 | US20050200420 Supply circuit for power amplifier drivers |
| 09/15/2005 | US20050200419 Temperature compensating circuit |
| 09/15/2005 | US20050200418 Temperature compensating circuit |
| 09/15/2005 | US20050200417 Use of analog-valued floating-gate transistors for parallel and serial signal processing |
| 09/15/2005 | US20050200416 Use of analog-valued floating-gate transistors for parallel and serial signal processing |
| 09/15/2005 | US20050200415 Use of analog-valued floating-gate transistors for parallel and serial signal processing |
| 09/15/2005 | US20050200414 Apparatus and method for compensating operating current in an amplifier when supply voltage varies |
| 09/15/2005 | US20050200413 Flexible substrate and electronic equipment |
| 09/15/2005 | US20050200412 Differential amplifier for balanced/unbalanced converter |
| 09/15/2005 | US20050200411 Differential amplifier without common mode feedback |
| 09/15/2005 | US20050200410 Low distortion class D amplifier using a controlled delay |
| 09/15/2005 | US20050200407 High frequency power amplifier and wireless communication module |
| 09/15/2005 | US20050200406 Gain control methods and systems in an amplifier assembly |
| 09/15/2005 | US20050200405 Audio signal amplification method and apparatus |
| 09/15/2005 | US20050200404 Amplifier circuit |
| 09/15/2005 | US20050200403 Polyphase impedance transformation amplifier |
| 09/15/2005 | US20050200402 Use of analog-valued floating-gate transistors for parallel and serial signal processing |
| 09/15/2005 | US20050200386 Fuse sense circuit |
| 09/15/2005 | US20050200385 Fuse sense circuit |
| 09/15/2005 | US20050200302 Pulse width modulation circuit and illuminating device incorporating same |
| 09/15/2005 | US20050199813 Read-out circuit for infrared detectors |
| 09/15/2005 | DE102004021153B3 Ultra-wideband signal amplifier for radio receiver uses tunable narrow band amplifier connected to frequency control circuit with store for sequence of chosen bands |
| 09/15/2005 | DE102004006957A1 Verfahren und Vorrichtung zum Verstärken eines Empfangssignals Method and apparatus for amplifying a reception signal |
| 09/15/2005 | DE10001371B4 Integrierte Schaltung mit einem Differenzverstärker An integrated circuit with a differential amplifier |
| 09/14/2005 | EP1575162A1 Audio amplifier |
| 09/14/2005 | EP1575161A1 Differential to single-ended signal conversion circuit and RF transmitter including such circuit |
| 09/14/2005 | EP1574862A1 Charge-type and current-type sensors amplifying circuit |
| 09/14/2005 | EP1573908A1 Improved rf transistor amplifier linearity using suppressed third order transconductance |
| 09/14/2005 | EP1573907A2 Delay mismatched feed forward amplifier system using penalties and floors for control |
| 09/14/2005 | EP1573901A1 Amplifier circuit having an extended wilson current-mirror self-bias boosting circuit |
| 09/14/2005 | EP1573898A2 Amplifier circuit having an impedance-controllable bias-boosting circuit |
| 09/14/2005 | EP1573813A2 Rf power transistor with internal bias feed |
| 09/14/2005 | EP1290786B1 Multiple output current mirror with improved accuracy |
| 09/14/2005 | EP1093686B1 Improved exponential current generator and method |
| 09/14/2005 | CN1669176A 传送线路和半导体集成电路装置 Transmission line and the semiconductor integrated circuit device |
| 09/14/2005 | CN1667968A 发射机和收发机 Transmitters and transceivers |
| 09/14/2005 | CN1667945A Linear audio power amplifying system with predistortion |
| 09/13/2005 | US6944437 Electronically programmable multimode circuit |
| 09/13/2005 | US6943721 Charge-coupled amplifier and converter with matched offsets |
| 09/13/2005 | US6943640 Current source modulator |
| 09/13/2005 | US6943630 Amplifier circuit, an optical communication system and a method of controlling amplification |
| 09/13/2005 | US6943626 Wideband precision fixed-gain amplifier architecture, apparatus, and method |
| 09/13/2005 | US6943625 Gain and phase balanced amplifier redundancy system |
| 09/13/2005 | US6943624 Radio frequency power amplifier |
| 09/13/2005 | US6943623 Amplification circuitry |
| 09/13/2005 | US6943622 Input buffer amplifier with centroidal layout |
| 09/13/2005 | US6943620 Delta-sigma amplifiers with output stage supply voltage variation compensations and methods and digital amplifier systems using the same |
| 09/13/2005 | US6943618 Compensation mechanism for compensating bias levels of an operation circuit in response to supply voltage changes |
| 09/13/2005 | US6943617 Low voltage CMOS bandgap reference |
| 09/13/2005 | US6943594 Driver including voltage-follower-type operational amplifier with high driving power and display apparatus using the same |
| 09/13/2005 | US6943500 Matrix element precharge voltage adjusting apparatus and method |
| 09/13/2005 | US6943441 Semiconductor device |
| 09/13/2005 | US6943387 Semiconductor device, manufacturing thereof and power amplifier module |
| 09/13/2005 | US6943289 Slotted planar power conductor |
| 09/09/2005 | WO2005083891A1 Transmitter apparatus and wireless communication apparatus |
| 09/09/2005 | WO2005043747A3 High linearity doherty communication amplifier with bias control |
| 09/08/2005 | US20050197087 Reception arrangement with preamplifier circuit |
| 09/08/2005 | US20050195918 Transmitting circuit, communication equipment, audio equipment, video equipment, and transmitting method |
| 09/08/2005 | US20050195194 3-D eye diagram |
| 09/08/2005 | US20050195038 Linearized trans-impedance amplifier |
| 09/08/2005 | US20050195037 Absolute power detector |