| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 06/07/2000 | EP1005736A2 Voltage controlled oscillator |
| 06/07/2000 | EP0660980B1 High power solid state r.f. amplifier |
| 06/07/2000 | CN1255779A D-modulator with peak value current limit and loaded impedance detection circuit |
| 06/06/2000 | US6072742 Semiconductor memory device with a voltage down converter stably generating an internal down-converted voltage |
| 06/06/2000 | US6072376 Filter with low-noise amplifier |
| 06/06/2000 | US6072366 Receiver capable of outputting a high quality signal without regard to an input signal level |
| 06/06/2000 | US6072365 Audio level compression circuit |
| 06/06/2000 | US6072362 System for enabling a full-bridge switch-mode amplifier to recover all reactive energy |
| 06/06/2000 | US6072361 Wideband class-S modulator and method therefor |
| 06/06/2000 | US6072359 Current generator circuit having a wide frequency response |
| 06/06/2000 | US6072349 Comparator |
| 06/06/2000 | US6072341 Driver circuit with pull down npn transistor and gain reduction |
| 06/02/2000 | WO2000031891A1 A method for use in a teleloop system, a teleloop system and an amplifier for a teleloop system |
| 06/02/2000 | WO2000031604A1 Current mirror circuit |
| 06/02/2000 | WO2000007291A3 A method of attenuating zero crossing distortion and noise in an amplifier, an amplifier and uses of the method and the amplifier |
| 05/31/2000 | EP1005171A2 Digital to analog converter |
| 05/31/2000 | EP1005157A2 Tunable CMOS delay element |
| 05/31/2000 | EP1004165A1 Active operating point regulation for power amplifiers |
| 05/31/2000 | DE19937990A1 Integrated semiconductor circuit for electret microphone, has voltage converter and bias voltage circuits for voltage change by change of capacity |
| 05/31/2000 | CN1254983A Transistor circuit with direct couple stage |
| 05/31/2000 | CN1254982A Charge-sensitive amplifier circuit |
| 05/31/2000 | CN1254980A Logarithmic amplifier circuit |
| 05/30/2000 | US6069534 Balance photo-receiver with complementary HBT common-base push pull pre-amplifier |
| 05/30/2000 | US6069533 Circuit and method for automatically adjusting common mode rejection ratio |
| 05/30/2000 | US6069532 Technique for designing a bias circuit for an amplifier in an integrated circuit device |
| 05/30/2000 | US6069526 Partial or complete amplifier bypass |
| 05/30/2000 | US6069525 Dual-mode amplifier with high efficiency and high linearity |
| 05/30/2000 | US6069523 Differential data driver |
| 05/30/2000 | US6069522 Circuitry and method for providing boost and asymmetry in a continuous-time filter |
| 05/30/2000 | US6069505 Digitally controlled tuner circuit |
| 05/30/2000 | US6069501 Semiconductor device |
| 05/30/2000 | CA2242413C A cmos microwave multiphase voltage controlled oscillator |
| 05/30/2000 | CA2231834C Frequency compensated pin diode attenuator |
| 05/25/2000 | WO2000030251A1 A current generator for delivering a reference current of which the value is proportional to the absolute temperature |
| 05/25/2000 | WO2000030250A1 Circuit and method for linearizing amplitude modulation in a power amplifier |
| 05/25/2000 | WO2000030249A1 Circuit comprising means for reducing the dc-offset and the noise produced by an amplifier |
| 05/25/2000 | WO2000030248A1 Rf power amplifier linearization using parallel rf power amplifiers having intermod-complementing predistortion paths |
| 05/25/2000 | WO2000030247A1 Circuits for preventing unwanted output transients in amplifiers during power-up |
| 05/25/2000 | WO2000014883A3 Differential input circuit for digital signal processing system |
| 05/24/2000 | EP1003281A2 Multi-input differential amplifier circuit |
| 05/24/2000 | EP1003280A2 Class D amplifier with current limit circuit and load impedance sensing circuit |
| 05/24/2000 | EP1003279A2 A low noise low distortion class D amplifier |
| 05/24/2000 | EP1003224A1 Analogue MISFET with threshold voltage adjuster |
| 05/24/2000 | EP1002363A1 Device for transforming into voltage signals weak electric currents impressed by a non-ideal electric current source at the inlet of same device |
| 05/24/2000 | EP0934626B1 Measuring amplifier |
| 05/24/2000 | CN1254453A Method and apparatus for efficient signal power amplification |
| 05/24/2000 | CN1254219A RF power amplifier control system |
| 05/23/2000 | US6066993 Duplexer circuit apparatus provided with amplifier and impedance matching inductor |
| 05/23/2000 | US6066987 Differential cascode magneto-resistance preamplifier with bias bypass |
| 05/23/2000 | US6066986 Integrated monolithic operational amplifier with electrically adjustable input offset voltage |
| 05/23/2000 | US6066985 Large swing input/output analog buffer |
| 05/23/2000 | US6066983 PCS multi-carrier linear power amplifier |
| 05/23/2000 | US6066944 High speed current mirror circuit and method |
| 05/18/2000 | WO2000028658A1 Multi-reference, high-accuracy switching amplifier |
| 05/18/2000 | WO2000008870A3 Apparatus and method of linearizing a power amplifier in a mobile radio communication system |
| 05/18/2000 | DE19851998A1 Schaltungsanordnung zum Erzeugen eines Ausgangssignals A circuit arrangement for generating an output signal |
| 05/18/2000 | CA2349181A1 Multi-reference, high-accuracy switching amplifier |
| 05/17/2000 | EP1001529A1 Linear power amplifier arrangement and method for its operation |
| 05/17/2000 | EP1001527A2 Circuit for generating an output signal |
| 05/17/2000 | EP1001526A1 PWM bridge amplifier with input network configurable for analog or digital input not needing a triangular wave generator |
| 05/17/2000 | EP1001524A1 Low cost, pilotless, feed forward compensation for a power amplifier |
| 05/17/2000 | EP1001474A1 A driver circuit for controlling a piezoelectric actuator in charge mode |
| 05/17/2000 | CN1253413A Audio-frequency amplifier circuit and audio-frequency equipment for said circuit |
| 05/16/2000 | US6064507 High speed differential optoelectronic receiver |
| 05/16/2000 | US6064268 Precision emitter follower |
| 05/16/2000 | US6064265 Gain control circuit for low-noise amplifier |
| 05/16/2000 | US6064264 Backgate switched power amplifier |
| 05/16/2000 | US6064263 DTCMOS differential amplifier |
| 05/16/2000 | US6064262 CMOS differential amplifier having offset voltage cancellation and common-mode voltage control |
| 05/16/2000 | US6064261 Write amplifier with improved switching performance, output common-mode voltage, and head current control |
| 05/16/2000 | US6064259 High power, high performance pulse width modulation amplifier |
| 05/16/2000 | US6064258 Distributed gain line driver amplifier |
| 05/16/2000 | US6064256 High frequency multi-stage capacitively coupled amplifier circuits |
| 05/16/2000 | US6064253 Multiple stage self-biasing RF transistor circuit |
| 05/16/2000 | US6064240 Comparator circuit with low current consumption |
| 05/11/2000 | WO2000027174A1 An electrical component and an electrical circuit module having connected ground planes |
| 05/11/2000 | WO2000027029A1 Device with common mode feedback for a differential output |
| 05/11/2000 | WO2000027028A1 Start-up circuit for self oscillating class d amplifier |
| 05/11/2000 | WO2000026907A1 Sense amplifier |
| 05/11/2000 | DE19838765A1 Self-oscillating digital amplifier with delay-free digital negative feedback, without push-pull distortions |
| 05/10/2000 | EP0999728A1 An electrical component and an electrical circuit module having connected ground planes |
| 05/10/2000 | CN1252905A Battery life extending technique for mobile wireless applications |
| 05/10/2000 | CA2289128A1 Low cost, pilotless, feed forward compensation for a power amplifier |
| 05/09/2000 | US6060952 Amplifier circuit for infrared sensor |
| 05/09/2000 | US6060951 Semiconductor device |
| 05/09/2000 | US6060949 High efficiency switched gain power amplifier |
| 05/09/2000 | US6060947 Hybrid IC device with wide dynamic range |
| 05/09/2000 | US6060938 Output buffer for reducing switching noise |
| 05/09/2000 | US6060870 Voltage-to-current converter with error correction |
| 05/09/2000 | CA2253090A1 Inverted super regenerative receiver |
| 05/04/2000 | WO2000025420A2 A video output amplifier |
| 05/04/2000 | WO1999056339A8 Microwave channelized bandpass filter having two channels |
| 05/04/2000 | DE19950714A1 Circuit arrangement for combining bias with signals, has variable selectable gain with gain factor between null and unity, that varies in proportion to differential input control voltage |
| 05/04/2000 | DE19913655A1 Verstärkerschaltung für einen Infrarotsensor Amplifier circuit for an infrared sensor |
| 05/03/2000 | EP0998033A1 Semiconductor circuit |
| 05/03/2000 | EP0998031A1 Current amplifier with low input impedance |
| 05/03/2000 | EP0998030A1 Overcurrent sensing circuit and self adjusting protection |
| 05/03/2000 | EP0998029A1 Electromagnetically compatible switched amplifier for DC/AC current amplification |
| 05/03/2000 | EP0996996A2 A high speed and high gain operational amplifier |
| 05/02/2000 | US6058144 Multi-GB/S data pulse receiver |