| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 07/01/2004 | US20040125885 Intermodulation product cancellation in communications |
| 07/01/2004 | US20040125480 Amplifier apparatus and magnetic recording and reproducing apparatus having the same |
| 07/01/2004 | US20040124960 Integrated circuit inductors using driven shields |
| 07/01/2004 | US20040124942 Transmission line and semiconductor integrated circuit device |
| 07/01/2004 | US20040124928 Multistage amplifier and integrated circuit |
| 07/01/2004 | US20040124927 Transimpedance amplification apparatus with source follower structure |
| 07/01/2004 | US20040124926 Microwave power amplifier |
| 07/01/2004 | US20040124925 Amplifier circuit and power supply provided therewith |
| 07/01/2004 | US20040124924 Active load device that enables biasing of a very wide band distributed amplifier circuit with gain control |
| 07/01/2004 | US20040124922 Common gate with resistive feed-through low noise amplifier |
| 07/01/2004 | US20040124921 Low voltage amplifier |
| 07/01/2004 | US20040124919 Method and system for implementing autonomous automatic gain control in a low noise broadband distribution amplifier |
| 07/01/2004 | US20040124918 Wideband common-mode regulation circuit |
| 07/01/2004 | US20040124917 Variable gain amplifier |
| 07/01/2004 | US20040124916 Quasi-linear multi-state digital modulation through non-linear amplifier arrays |
| 07/01/2004 | US20040124915 Amplifier |
| 07/01/2004 | US20040124914 Switching amplification apparatus |
| 07/01/2004 | US20040124913 Power amplifier circuit and method using bandlimited signal component estimates |
| 07/01/2004 | US20040124340 Photoelectric leak current compensating circuit and optical signal circuit using same |
| 07/01/2004 | DE10259393A1 Amplifier circuit especially low frequency amplifier has passive frequency diplexer that divides signal amplified by power amplifier into two paths and has passive negative feedback between frequency diplexer and power amplifier |
| 07/01/2004 | CA2507431A1 Single package multi-chip rf power amplifier |
| 06/30/2004 | EP1434348A1 Wideband common-mode regulation circuit |
| 06/30/2004 | EP1433256A1 Circuits and methods for output impedance matching in switched mode circuits |
| 06/30/2004 | EP1433253A1 Method and apparatus for impedance matching in an amplifier using lumped and distributed inductance |
| 06/30/2004 | EP1433252A2 High speed output buffers using voltage followers |
| 06/30/2004 | EP1433251A2 Rf power amplifier |
| 06/30/2004 | EP1433236A1 Power supply regulation and protection circuit for audio power amplifier |
| 06/30/2004 | CN2622932Y Integrated clipping amplifier |
| 06/30/2004 | CN1509583A Electric-acoustic coversion apparatus |
| 06/30/2004 | CN1509554A Multiple bandwidth amplifier control system for mobile stations and method thereof |
| 06/30/2004 | CN1509106A Radio frequency power amplifier module integrating power control circuit |
| 06/30/2004 | CN1508970A System chip type sound trigger controller |
| 06/30/2004 | CN1156073C Improved feedforward multicarrier linear RF power amplifier |
| 06/29/2004 | US6757526 Battery life extending technique for mobile wireless applications using bias level control |
| 06/29/2004 | US6757338 Predistortion linearizer using even order intermodulation components |
| 06/29/2004 | US6756947 Tunable slot antenna |
| 06/29/2004 | US6756928 Pseudo-differential amplifier and analog-to-digital converter using the same |
| 06/29/2004 | US6756924 Circuit and method for DC offset calibration and signal processing apparatus using the same |
| 06/29/2004 | US6756851 Transimpedance amplifier |
| 06/29/2004 | US6756850 High frequency power amplifier circuit |
| 06/29/2004 | US6756849 Absolute power detector |
| 06/29/2004 | US6756847 Operational amplifier with increased common mode input range |
| 06/29/2004 | US6756846 Increased output swing line drivers for operation at supply voltages that exceed the breakdown voltage of the integrated circuit technology |
| 06/29/2004 | US6756843 Signal transmitter with pulse-controlled amplification |
| 06/29/2004 | US6756842 AC coupled multistage high gain operational amplifier |
| 06/29/2004 | US6756823 Differential sense latch scheme |
| 06/29/2004 | CA2170764C High speed differential receiver for data communications |
| 06/24/2004 | WO2004054098A1 Mos voltage to current transducer |
| 06/24/2004 | WO2004054094A1 Amplifier circuit having an extended wilson current-mirror self-bias boosting circuit |
| 06/24/2004 | WO2004054093A2 Amplifier circuit having an impedance-controllable bias-boosting circuit |
| 06/24/2004 | WO2003107529A3 High voltage-wide band amplifier |
| 06/24/2004 | US20040121745 Method and apparatus for impedance matching in an amplifier using lumped and distributed inductance |
| 06/24/2004 | US20040121741 Adaptive controller for linearization of transmitter with impairments |
| 06/24/2004 | US20040121735 Programmable gain amplifier with self-adjusting offset correction |
| 06/24/2004 | US20040119543 Wide dynamic range transimpedance amplifier with a controlled low frequency cutoff at high optical power |
| 06/24/2004 | US20040119542 Transimpedance amplifier |
| 06/24/2004 | US20040119541 Transimpedance ampifier |
| 06/24/2004 | US20040119540 Transimpedance amplifier |
| 06/24/2004 | US20040119539 Dc offset cancellation circuit, system and method |
| 06/24/2004 | US20040119538 Amplifier and method for canceling nonlinearity in amplifier |
| 06/24/2004 | US20040119537 Amplifier and method for voltage-to-current conversion |
| 06/24/2004 | US20040119536 Variable gain amplifier |
| 06/24/2004 | US20040119533 High linearity doherty communication amplifier with bias control |
| 06/24/2004 | US20040119532 Semiconductor integrated circuit |
| 06/24/2004 | US20040119531 Dc offset canceling circuit applied in a variable gain amplifier |
| 06/24/2004 | US20040119529 Powergate control using boosted and negative voltages |
| 06/24/2004 | US20040119461 Transmitter equalization method and apparatus |
| 06/24/2004 | US20040119140 RF passive circuit and RF amplifier with via-holes |
| 06/24/2004 | DE10353047A1 Variable-gain amplifier for radio frequency signals, has gain bypass device for passing RF input signal to output, bypassing field effect transistor when varying gain |
| 06/23/2004 | EP1432120A1 Audio power amplifier |
| 06/23/2004 | EP1430598A2 Dynamic biasing of a transmitter |
| 06/23/2004 | EP1430596A1 Temperature-stabilised amplifier circuit |
| 06/23/2004 | CN1507179A High-speed electrooptical module with inductance compensation |
| 06/23/2004 | CN1507149A Current reflective mirror circuit |
| 06/23/2004 | CN1155238C Frequency compensated pin diode attenuator |
| 06/23/2004 | CN1155174C Data reception circuit for infrared signals |
| 06/23/2004 | CA2414965A1 Amplifier |
| 06/22/2004 | US6754287 Method and apparatus for producing a modulated signal |
| 06/22/2004 | US6753801 Fully differential reference driver for pipeline analog to digital converter |
| 06/22/2004 | US6753736 Amplifier circuit for AM broadcasting |
| 06/22/2004 | US6753735 High frequency power amplifier and wireless communication module |
| 06/22/2004 | US6753734 Multi-mode amplifier bias circuit |
| 06/22/2004 | US6753733 Amplifier circuit and method for reducing stray feedback |
| 06/22/2004 | US6753732 Accurate, wide-band, low-noise variable-gain amplifier structures and gain control methods |
| 06/22/2004 | US6753731 Operation amplifier circuit, drive circuit and method of controlling operation amplifier circuit |
| 06/22/2004 | US6753730 Differential amplifier and filter circuit using the same |
| 06/22/2004 | US6753729 Self-oscillating variable frequency closed loop Class D amplifier |
| 06/22/2004 | US6753727 Sequential DC offset correction for amplifier chain |
| 06/22/2004 | CA2158628C Grounded-base transistor amplifier |
| 06/17/2004 | WO2004051876A1 Power limit device and digital radio transmitter using the same |
| 06/17/2004 | WO2004051875A1 Digitally convertible radio |
| 06/17/2004 | WO2004051845A1 Amplifier circuit |
| 06/17/2004 | WO2004025828A3 Radio frequency power amplifier device |
| 06/17/2004 | WO2004021251A3 Switched capacitor system, method, and use |
| 06/17/2004 | US20040116162 Amplifying circuit, speaker system, and mobile information terminal employing amplifying circuit |
| 06/17/2004 | US20040113880 Driving circuit for liquid crystal display |
| 06/17/2004 | US20040113830 Integrated circuit and A/D conversion circuit |
| 06/17/2004 | US20040113829 Analog to digital conversion circuit |
| 06/17/2004 | US20040113737 Inductors and transformers in integrated circuits |
| 06/17/2004 | US20040113702 Tuner circuit |