| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 08/17/2004 | US6778009 High gain and wide bandwidth switched capacitor amplifier having a dynamically loaded amplifier output |
| 08/17/2004 | US6777984 Differential amplifying method and apparatus capable of responding to a wide input voltage range |
| 08/12/2004 | WO2004068705A1 Preamplifier circuit, clock switch circuit, and optical receiver using the same |
| 08/12/2004 | WO2004068703A1 Device and method for digital pulsewidth modulation |
| 08/12/2004 | WO2004068702A1 Front end amplifier circuit and optical receiver using the same |
| 08/12/2004 | WO2004068700A2 High linearity low noise amplifier |
| 08/12/2004 | US20040157576 Communication device performing communication using two clock signals complementary to each other |
| 08/12/2004 | US20040157573 Circuit and method for DC offset calibration and signal processing apparatus using the same |
| 08/12/2004 | US20040155753 Circuit arrangement for signal detection having current mirror with cascode coupled transistors |
| 08/12/2004 | US20040155731 Low-loss tunable ferro-electric device and method of characterization |
| 08/12/2004 | US20040155713 Transimpedance amplifier with feedback resistive network |
| 08/12/2004 | US20040155712 High-frequency circuit |
| 08/12/2004 | US20040155711 Power amplifier system and mobile communication terminal device |
| 08/12/2004 | US20040155710 Dual gate low noise amplifier |
| 08/12/2004 | US20040155709 Operational amplification circuit, overheat detecting circuit and comparison circuit |
| 08/12/2004 | US20040155706 Dual band power amplifier with improved isolation |
| 08/12/2004 | US20040155705 Continuous low-frequency error cancellation in a high-speed differential amplifier |
| 08/12/2004 | US20040155704 Feed forward amplifier |
| 08/12/2004 | US20040155682 High-speed cross-coupled sense amplifier |
| 08/12/2004 | DE202004006606U1 Broadband amplifier for transmission and amplification of high frequency signals especially for cable television has filter units of differing frequency in feedback branch |
| 08/11/2004 | EP1445922A1 Monolithic optical read-out circuit |
| 08/11/2004 | EP1444777A1 A power amplifier module with distortion compensation |
| 08/11/2004 | EP1444776A1 Power amplifier |
| 08/11/2004 | EP1384315B1 Device for controlling a closed circuit current for an amplifier transistor and amplifier circuit |
| 08/11/2004 | EP1266453B1 High noise rejection voltage-controlled ring oscillator architecture |
| 08/11/2004 | CN1520635A Audio reproducing appts. and method |
| 08/11/2004 | CN1520634A Thermally distributed darlington amplifier |
| 08/11/2004 | CN1520031A 微波功率放大器 Microwave Power Amplifier |
| 08/11/2004 | CN1519577A Analog amplifier having multiplex function |
| 08/11/2004 | CN1161879C Power amplifier |
| 08/10/2004 | US6775525 Radio communication apparatus and semiconductor device |
| 08/10/2004 | US6775387 Three-step ramped reference to reduce popping noises on audio circuit |
| 08/10/2004 | US6774882 Thin film transistor circuit and semiconductor display device using the same |
| 08/10/2004 | US6774728 Transimpedance amplifier |
| 08/10/2004 | US6774727 Device comprising a symmetrical amplifier |
| 08/10/2004 | US6774723 Output stage with stable quiescent current |
| 08/10/2004 | US6774722 Frequency compensation of common-mode feedback loops for differential amplifiers |
| 08/10/2004 | US6774721 High speed logic circuits |
| 08/10/2004 | US6774720 Electric field intensity detecting circuit and limiter amplifier |
| 08/10/2004 | US6774717 Transmitter including a composite amplifier |
| 08/10/2004 | US6774715 BiCMOS AC filter circuit |
| 08/10/2004 | US6774680 Comparator including a differential transistor pair and a diode arrangement |
| 08/05/2004 | WO2004066642A2 Signal processing system with baseband noise modulation chopper circuit timing to reduce noise |
| 08/05/2004 | WO2004066540A2 Signal processing system with baseband noise modulation and noise fold back reduction |
| 08/05/2004 | WO2004066489A1 Doherty amplifier and its distortion characteristic compensation method |
| 08/05/2004 | WO2004017527A3 High bandwidth magnetically isolated signal transmission circuit |
| 08/05/2004 | US20040153681 Phase detector for extended linear response and high-speed data regeneration |
| 08/05/2004 | US20040152426 Front-end module and communication terminal |
| 08/05/2004 | US20040152279 Semiconductor latches and SRAM devices |
| 08/05/2004 | US20040150479 Power amplifier circuit |
| 08/05/2004 | US20040150478 Adjustable current-mode equalizer |
| 08/05/2004 | US20040150477 Amplifier for alternating signals superimposed on a continuous signal and method for amplifying such signals |
| 08/05/2004 | US20040150476 Amplifier slew-rate enhancement systems for use with switched-capacitor structures |
| 08/05/2004 | US20040150475 Differential current amplifier with common mode rejection and high frequency boost |
| 08/05/2004 | US20040150474 Current cotrolled bridge amplifier |
| 08/05/2004 | US20040150473 Distortion cancellation for RF amplifiers using complementary biasing circuitry |
| 08/05/2004 | US20040150469 Analogue amplifier with multiplexing capability |
| 08/05/2004 | US20040150466 Current mirror circuit and current source circuit |
| 08/05/2004 | US20040150465 Interpolating sense amplifier circuits and methods of operating the same |
| 08/05/2004 | US20040150464 Voltage buffer for capacitive loads |
| 08/05/2004 | US20040150459 Semiconductor integrated circuit device and semiconductor integrated circuit |
| 08/05/2004 | US20040150430 Voltage mode differential driver and method |
| 08/05/2004 | US20040150429 Semiconductor device with bipolar transistor device |
| 08/05/2004 | DE202004007507U1 Audio amplifier for installation in vehicles with divided sections for crossover and power amplifier has all components for current conversion and filtering arranged in crossover region |
| 08/04/2004 | EP1443641A1 Switchable tuneable bandpass filter with optimized frequency response |
| 08/04/2004 | EP1442563A2 Method and system for dsl power saving |
| 08/04/2004 | EP1442520A1 Balanced power amplifier with a bypass structure |
| 08/04/2004 | EP1442519A1 Balanced transconductor and electronic device |
| 08/04/2004 | EP1442518A1 Operational amplifier with chopped input transistor pair |
| 08/04/2004 | EP0891650B1 An amplifier circuit, a transmitter and a wireless telephone |
| 08/04/2004 | CN2631125Y Bias circuit for improving linearity of radio frequency power amplifier |
| 08/04/2004 | CN1518795A CMOS circuit with constant output swing and variable time delay for voltage controlled oscillator |
| 08/04/2004 | CN1518792A System for controlling class D amplifier |
| 08/04/2004 | CN1518220A Band-pass filter of changable and tunable with optimum frequency response |
| 08/04/2004 | CN1518211A Adjustable shifting difference amplifier |
| 08/04/2004 | CN1518210A Optical receiving amplifier circuit and optical pickup unit with it |
| 08/04/2004 | CN1160857C Electric circuit apparatus for producing output signal |
| 08/04/2004 | CN1160850C Driving circuits for switch mode power amplifiers |
| 08/03/2004 | US6771132 Wide dynamic range transimpedance amplifier with a controlled low frequency cutoff at high optical power |
| 08/03/2004 | US6771131 CMOS Amplifier for optoelectronic receivers |
| 08/03/2004 | US6771130 Power amplifier and radio communication apparatus using the same |
| 08/03/2004 | US6771129 Base bias current control for an amplifier |
| 08/03/2004 | US6771126 Slew rate enhancement circuit and method |
| 08/03/2004 | US6771123 Multichannel power amplifying |
| 08/03/2004 | US6771122 DC offset compensation circuit of closed loop operational amplifier and method of compensating for DC offset |
| 08/03/2004 | US6771121 Linearization of a PDM Class-D amplifier |
| 08/03/2004 | US6771120 Reference generation technique for multiple-reference amplifier |
| 07/29/2004 | WO2004064250A1 Controllable rf broadband amplifier with a constant input impedance |
| 07/29/2004 | WO2004064249A2 Cathode-coupled pentode valve amplifier with servo offset controlled push-pull output stage |
| 07/29/2004 | WO2004064005A2 Circuit arrangements and methods for a remote control receiver having a photodiode |
| 07/29/2004 | WO2004063827A1 Apparatus and method for making a constant current source |
| 07/29/2004 | WO2004055977A3 Phase corrected miller compensation of chopper and nested chopper amplifiers |
| 07/29/2004 | WO2004021562A3 System and method for establishing the input impedance of an amplifier in a stacked configuration |
| 07/29/2004 | WO2004008630A3 Amplifying circuit with adjustable amplification and transmitter system comprising such an amplifying circuit |
| 07/29/2004 | WO2002082636A3 Data receiver gain enhancement |
| 07/29/2004 | US20040147237 Varactor with extended tuning range |
| 07/29/2004 | US20040145957 Reduced offset errors |
| 07/29/2004 | US20040145419 Circuit and method for switching gains of preamplifier |
| 07/29/2004 | US20040145418 MMIC driver amplifier having zig-zag RF signal flow |
| 07/29/2004 | US20040145417 Power amplifier module |