| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 09/08/2004 | CN2640151Y High low pitch audio loudspeaker box special for TV. set |
| 09/08/2004 | CN2640127Y Vacuum pipe vehicle power amplifier |
| 09/08/2004 | CN1528047A Circuit for low noise, fully differential amplification |
| 09/08/2004 | CN1527486A nonlinear element power transmitter |
| 09/08/2004 | CN1527480A Method of reducing the area of transconductance capacitor filter |
| 09/08/2004 | CN1527254A Dptical receiving machine |
| 09/08/2004 | CN1166110C Voltage controlled oscillator |
| 09/08/2004 | CN1166054C Differential amplifier, integrated circuit, and telephone |
| 09/08/2004 | CN1165998C Radio structure |
| 09/07/2004 | US6788231 Data driver |
| 09/07/2004 | US6788169 Amplifier composite triple beat (CTB) reduction by phase filtering |
| 09/07/2004 | US6788152 Amplification circuit and optical communication apparatus provided with the amplification circuit |
| 09/07/2004 | US6788150 Linear power amplifier |
| 09/07/2004 | US6788149 Broad-band biasing system for biasing an electronic circuit and an amplifier incorporating the system |
| 09/07/2004 | US6788147 Operational amplifier with class-AB+B output stage |
| 09/07/2004 | US6788146 Capacitor compensation in miller compensated circuits |
| 09/07/2004 | US6788145 Circuit configuration for producing exponential predistortion for a variable amplifier |
| 09/07/2004 | US6788144 Variable-gain amplifier |
| 09/07/2004 | US6788143 Cascode stage for an operational amplifier |
| 09/07/2004 | US6788142 Wide common mode differential input amplifier and method |
| 09/07/2004 | US6788141 Power amplifier circuitry and method |
| 09/07/2004 | US6788139 Broadband predistortion linearizer |
| 09/07/2004 | US6788137 Switching amplifier and signal amplifying method |
| 09/07/2004 | US6788136 Methods and apparatus for amplification in high temperature environments |
| 09/07/2004 | US6788113 Differential signal output apparatus, semiconductor integrated circuit apparatus having the differential signal output apparatus, and differential signal transmission system |
| 09/07/2004 | US6787398 Method of fabricating a high frequency signal amplification device |
| 09/02/2004 | WO2004075400A2 Dual band power amplifier with improved isolation |
| 09/02/2004 | WO2004075399A1 Logic low noise amplifier and amplification control method thereof |
| 09/02/2004 | WO2004075396A2 Darlington cascode |
| 09/02/2004 | WO2004075395A1 Efficient modulation of rf signals |
| 09/02/2004 | WO2004015859A3 Variable gain amplifier with improved control characteristics linearity |
| 09/02/2004 | US20040171397 Power amplification device, in particular for a cellular mobile telephone |
| 09/02/2004 | US20040169560 Amplifier apparatus and method thereof |
| 09/02/2004 | US20040169558 Adaptive linearizer for RF power amplifiers |
| 09/02/2004 | US20040169555 Differential amplifier circuit with common mode output voltage regulation |
| 09/02/2004 | US20040169554 Device for amplifying a high frequency signal |
| 09/02/2004 | US20040169553 Pulse width modulation amplifier |
| 09/02/2004 | US20040169552 Class d switching audio amplifier |
| 09/02/2004 | US20040169536 Phase indication apparatus |
| 09/02/2004 | US20040169530 Method and apparatus for robust biasing of bipolar and BiCMOS differential architectures |
| 09/02/2004 | US20040169129 Optical receiver |
| 09/02/2004 | DE10354282A1 Kommunikationsvorrichtung, die eine Kommunikation unter Verwendung von zwei Taktsignalen durchführt, die zueinander komplementär sind Communication device that performs communication by using two clock signals, which are complementary to one another |
| 09/01/2004 | EP1453350A2 Multichannel power amplifying |
| 09/01/2004 | EP1451928A1 Compensation circuit for frequency filters |
| 09/01/2004 | EP1451926A2 Power amplifier control |
| 09/01/2004 | EP1451924A2 Switched mode power amplifier |
| 09/01/2004 | CN1526197A Fully differential, variable-gain amplifier and a multidimensional amplifier arrangement |
| 09/01/2004 | CN1525639A A low distortion Class D amplifier |
| 09/01/2004 | CN1165108C Electronic tube inverting amplifying circuit |
| 09/01/2004 | CN1165107C Distortion compensation device and method |
| 08/31/2004 | US6785521 System and method for current-mode amplitude modulation |
| 08/31/2004 | US6785477 Optical receiver using variable negative-capacitance circuit |
| 08/31/2004 | US6785392 Methods and apparatus for enabling or disabling an amplifier |
| 08/31/2004 | US6784750 Transimpedance amplifier with selective DC compensation |
| 08/31/2004 | US6784749 Limiting amplifier with active inductor |
| 08/31/2004 | US6784748 Power amplifying system with supply and bias enhancements |
| 08/31/2004 | US6784747 Amplifier circuit |
| 08/31/2004 | US6784746 Circuit and method for correcting thermal deviations of one or more output signals from an amplifier with early effect compensation |
| 08/31/2004 | US6784745 Adjustable current-mode equalizer |
| 08/31/2004 | US6784743 High frequency amplifier and frequency mixer |
| 08/31/2004 | US6784741 Amplifier |
| 08/31/2004 | US6784739 Class AB amplifier circuit |
| 08/31/2004 | US6784738 Method and apparatus for gain control in a CMOS low noise amplifier |
| 08/31/2004 | US6784736 Apparatus and method for indicating a difference between first and second voltage signals |
| 08/31/2004 | US6784735 High switching speed differential amplifier |
| 08/31/2004 | US6784734 All digital transistor high gain operational amplifier using positive feedback technique |
| 08/31/2004 | US6784733 Dynamically controlled amplifier |
| 08/31/2004 | US6784732 Class E/F switching power amplifiers |
| 08/31/2004 | US6784730 Contactless IC card system |
| 08/31/2004 | US6784700 Input buffer circuit |
| 08/31/2004 | US6784698 Sense amplifier with improved common mode rejection |
| 08/31/2004 | US6784669 Electrical circuit arrangement for converting an electrical input variable into an impressed output electrical voltage |
| 08/31/2004 | US6784500 High voltage integrated circuit amplifier |
| 08/26/2004 | WO2004073164A2 Distortion cancellation for rf amplifiers using complementary biasing circuitry |
| 08/26/2004 | WO2004073163A1 Self zeroing for critical, continuous-time applications |
| 08/26/2004 | WO2004073162A1 Low voltage class ab transconductor circuits |
| 08/26/2004 | WO2004073161A1 Low distortsion class-d amplifier using carrier reference signal symmetry modulation |
| 08/26/2004 | WO2004073160A2 Electronically tunable power amplifier tuner |
| 08/26/2004 | WO2004049557A3 High-speed class-ab transconductance stage |
| 08/26/2004 | US20040167736 Multi-channel programmable gain amplifier controlled with a serial interface |
| 08/26/2004 | US20040166824 Method and apparatus for performing DC offset cancellation in a receiver |
| 08/26/2004 | US20040165895 Optical receiving apparatus and method |
| 08/26/2004 | US20040165894 Optical receiving apparatus and method |
| 08/26/2004 | US20040165719 Line driver for digital signal transmission |
| 08/26/2004 | US20040165661 Device and method for digital pulse with modulation |
| 08/26/2004 | US20040165463 Sense amplifying circuit and bit comparator with the sense amplifying circuit |
| 08/26/2004 | US20040164886 Data driver |
| 08/26/2004 | US20040164808 High frequency power amplifier circuit |
| 08/26/2004 | US20040164807 Limiting amplifier with active inductor |
| 08/26/2004 | US20040164806 Amplifier circuit for am broadcasting |
| 08/26/2004 | US20040164805 Constant current biasing circuit for linear power amplifiers |
| 08/26/2004 | US20040164804 Power amplifier with distributed capacitor |
| 08/26/2004 | US20040164803 Power amplifying system with supply and bias enhancements |
| 08/26/2004 | US20040164802 Method of forming a variable propagation delay semiconductor device and structure therefor |
| 08/26/2004 | US20040164801 Methods and apparatus for amplification in high temperature environments |
| 08/26/2004 | US20040164800 Efficient, switched linear signal driver |
| 08/26/2004 | US20040164798 Circuit and method for compensating for nonliner distortion of power amplifier |
| 08/26/2004 | US20040164797 Linear amplifier using non-linear cmos capacitors |
| 08/26/2004 | US20040164795 Balanced amplifier and filter using the same |
| 08/26/2004 | US20040164794 Balanced amplifier and filter using the same |