| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
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| 05/31/2001 | WO2001039367A1 Method and apparatus for generating a radio frequency signal |
| 05/31/2001 | WO2001039366A2 Circuit that operates in a manner substantially complementary to an amplifying device included therein and apparatus incorporating same |
| 05/31/2001 | WO2001039365A1 Power amplifiers |
| 05/31/2001 | US20010002207 Signal canceling method and device |
| 05/31/2001 | US20010002114 Adaptive linearizer for RFpower amplifiers |
| 05/31/2001 | US20010002113 Circuit arrangement for adjusting the impedance of a differential active component |
| 05/30/2001 | EP1104108A1 Current detector circuits |
| 05/30/2001 | EP1104095A1 Amplifying Divice Providing Adjustable Bandwidth |
| 05/30/2001 | EP1104094A1 Class D audio amplifier using feedback |
| 05/30/2001 | EP1104093A1 Method and apparatus for generation of a RF signal |
| 05/30/2001 | EP1104092A2 Operational amplifier with digital offset calibration |
| 05/30/2001 | EP0937335B1 An arrangement for reducing and stabilizing the amplification of a darlington-coupled output stage |
| 05/30/2001 | CN1297609A 发送机及接收机 Transmitter and receiver |
| 05/30/2001 | CN1297608A Predistorter |
| 05/30/2001 | CN1297607A Predistorter |
| 05/30/2001 | CN1066593C Power combiner for use in RF system and method of using power combiner |
| 05/29/2001 | US6240278 Scalar cost function based predistortion linearizing device, method, phone and basestation |
| 05/29/2001 | US6240144 Apparatus and method of linearizing a power amplifier in a mobile radio communication system |
| 05/29/2001 | US6239659 Low power gain controlled amplifier with high dynamic range |
| 05/29/2001 | US6239658 Power consumption control for low noise amplifier |
| 05/29/2001 | US6239657 Method and device for measuring the distortion of a high-frequency power amplifier and method and means for automatically equalizing a high-frequency power amplifier |
| 05/29/2001 | US6239656 Power amplifier |
| 05/29/2001 | US6239643 Offset correction circuit and DC amplification circuit |
| 05/29/2001 | CA2233793C Feed-forward amplifier |
| 05/25/2001 | WO2001037424A1 Linearisation of an amplifier |
| 05/25/2001 | WO2001037423A1 Low power systems using enhanced bias control in rail-to-rail gain stage amplifiers |
| 05/25/2001 | WO2001037422A1 Amplifier |
| 05/25/2001 | WO2001037421A2 High efficiency power amplifier |
| 05/24/2001 | US20010001547 Methods and apparatus for noise shaping a mixed signal power output |
| 05/24/2001 | US20010001546 Power efficient line driver |
| 05/23/2001 | EP1102418A1 Communication device and communication method |
| 05/23/2001 | EP1102394A2 System and method for producing amplified signals |
| 05/23/2001 | EP1102393A2 System and method for producing an amplified signal |
| 05/23/2001 | EP1101280A1 A set-up method for a linearising circuit |
| 05/23/2001 | EP1101279A1 Amplifier output stage |
| 05/23/2001 | EP1101278A2 A method of attenuating zero crossing distortion and noise in an amplifier, an amplifier and uses of the method and the amplifier |
| 05/23/2001 | CN2431681Y Output circuit for high power rated microphone |
| 05/23/2001 | CN2431680Y Improved computing amplifier with zero consumed current and stable output |
| 05/23/2001 | CN1296663A Hybrid chireix/doherty amplifiers power waveform synthesis |
| 05/22/2001 | US6236863 Comprehensive transmitter power control system for radio telephones |
| 05/22/2001 | US6236837 Polynomial Predistortion linearizing device, method, phone and base station |
| 05/22/2001 | US6236286 Integrated on-board automated alignment for a low distortion amplifier |
| 05/22/2001 | US6236284 RF power amplifier system having distributed modulation encoding |
| 05/22/2001 | US6236273 High efficiency power amplifier |
| 05/22/2001 | US6236272 Traveling wave power combiner and radio base station |
| 05/22/2001 | US6236271 Multi-layer carrier module for power amplifier systems within a digital cellular telephone |
| 05/22/2001 | US6236270 Operational amplifier circuit including folded cascode circuit |
| 05/22/2001 | US6236267 Linearization for power amplifiers using feed-forward and feedback control |
| 05/22/2001 | US6236266 Bias circuit and bias supply method for a multistage power amplifier |
| 05/22/2001 | US6236257 Method and apparatus for reducing using feed forward compensation |
| 05/22/2001 | US6236254 Low voltage amplification circuit with bias compensation |
| 05/22/2001 | US6236238 Output buffer with independently controllable current mirror legs |
| 05/17/2001 | WO2001035526A2 Improved floating, balanced output circuit |
| 05/17/2001 | WO2001035464A1 Power amplifier, communication device and method of manufacture thereof |
| 05/16/2001 | EP1099306A1 A high-voltage level tolerant transistor circuit |
| 05/16/2001 | EP1099301A1 High gain, impedance matching low noise rf amplifier circuit |
| 05/16/2001 | EP1099300A1 Circuit for generating an auxiliary direct current voltage |
| 05/15/2001 | US6233440 RF power amplifier with variable bias current |
| 05/15/2001 | US6233436 Intermodulation compensation in multi-channel amplifiers |
| 05/15/2001 | US6233434 System for transmitting/receiving a signal having a carrier frequency band for a radio base station |
| 05/15/2001 | US6232848 Low voltage topology for radio frequency integrated circuit design |
| 05/15/2001 | US6232841 Integrated tunable high efficiency power amplifier |
| 05/15/2001 | US6232840 Transistor amplifier having reduced parasitic oscillations |
| 05/15/2001 | US6232838 Feed-forward amplifier and method of compensating non-linear distortion in the same |
| 05/15/2001 | US6232837 Optimal control method for adaptive feedforward linear amplifier |
| 05/15/2001 | US6232836 In-line, unbalanced amplifier, predistortion circuit |
| 05/15/2001 | US6232835 System and method of linearizing the gain error of a power amplifier |
| 05/15/2001 | US6232834 Calibrated compensation for an operational amplifier |
| 05/15/2001 | US6232833 Low noise low distortion class D amplifier |
| 05/15/2001 | US6232832 Circuit for limiting an output voltage to a percent of a variable supply voltage |
| 05/15/2001 | US6232756 Band gap reference circuit |
| 05/15/2001 | CA2257617C Wideband catv amplifier with microprocessor-based slope and gain control |
| 05/15/2001 | CA2155267C Pre-compensated frequency modulation (pfm) |
| 05/15/2001 | CA2064764C Low offset voltage unity gain buffer amplifier |
| 05/09/2001 | EP1098435A1 Low cost miniature broadband linearizer |
| 05/09/2001 | EP1098434A2 Feedforward amplifier |
| 05/09/2001 | EP1097508A1 Method and apparatus for compensating for distortion in iq modulators |
| 05/09/2001 | CN2429966Y Bias modulator for final power amplifier of HF transmitter |
| 05/09/2001 | CN1294803A Pulse shaping which compensates for component distortion |
| 05/08/2001 | US6229397 Automatic gain control circuit receiving apparatus incorporating said circuit automatic gain control method adaptable to receiving apparatus and recording medium |
| 05/08/2001 | US6229396 Controlled impedance transformer line driver |
| 05/08/2001 | US6229391 Adaptation method and amplifier arrangement |
| 05/08/2001 | US6229390 Methods and apparatus for noise shaping a mixed signal power output |
| 05/08/2001 | US6229389 Class D modulator with peak current limit and load impedance sensing circuits |
| 05/03/2001 | WO2001031779A1 Amplifier stabilisation |
| 05/03/2001 | WO2001031778A1 Adaptive linearization of power amplifiers |
| 05/03/2001 | WO2001031777A1 Improved predistortion compensation for a power amplifier |
| 05/03/2001 | WO2001031708A1 Circuit for protection of differential amplifier inputs against electrostatic discharge |
| 05/03/2001 | WO2001031663A1 Electrical circuit arrangement for converting an input voltage |
| 05/03/2001 | WO2000070749A8 Broadcast transmission system with distributed correction |
| 05/03/2001 | DE19951944A1 Elektrische Schaltungsanordnung zur Umformung einer Eingangsspannung Electrical circuit arrangement for converting an input voltage |
| 05/03/2001 | DE19946669A1 Verfahren zum Einstellen eines Phasenwinkels eines Phasenschiebers einer Sendeeinrichtung A method for adjusting a phase angle of a phase shifter of a transmitting device |
| 05/03/2001 | DE19946668A1 Sendeeinrichtung Transmitting device |
| 05/02/2001 | EP1096700A1 Device for the simultaneous reception/transmission of signals comprising a low-noise amplifier |
| 05/02/2001 | EP1096671A1 A differential operational amplifier |
| 05/02/2001 | EP1096670A2 System and method for transmitting digital information using interleaved delta modulation |
| 05/02/2001 | EP1096669A2 Semiconductor amplifier circuit and system |
| 05/02/2001 | EP1096668A1 Power amplifier |
| 05/02/2001 | EP1095449A1 Amplifier with dynamically adaptable supply current |
| 05/02/2001 | EP1095448A1 Distributed amplifier and method therefor |