| 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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| 11/16/1993 | CA2017904C High frequency amplifier circuit capable of optimizing a total power consumption |
| 11/11/1993 | WO1993022830A1 Dc feedback circuit using sample and hold circuits |
| 11/10/1993 | EP0569165A2 Power supply circuit |
| 11/09/1993 | CA2035820C Amplifier circuit having feedback circuit |
| 11/09/1993 | CA2033305C Amplifier circuit having second order signal cancellation |
| 11/09/1993 | CA2033302C Amplifier circuit with correction of amplitude and phase distortions |
| 11/03/1993 | EP0568197A2 Biomedical amplifier circuit |
| 11/03/1993 | EP0514381B1 Frequency response-compensated circuit |
| 11/03/1993 | EP0344227B1 Temperature compensated logarithmic amplifier |
| 11/02/1993 | US5258723 Integrated instrumentation amplifier with integrated frequency-compensating capacitance |
| 11/02/1993 | US5258722 Amplifier circuit with distortion cancellation |
| 11/02/1993 | US5258664 Operational amplifier with self contained sample and hold and auto zero |
| 11/02/1993 | US5258658 Gamma correction circuit |
| 11/02/1993 | US5258653 Power efficient voltage to current coverter |
| 10/27/1993 | EP0567380A1 Method and device for compensation of phase instabilities of a wave amplified by a microwave tube |
| 10/27/1993 | EP0566990A2 Single-ended and differential transistor amplifier circuits with full signal modulation compensation techniques which are technology independent |
| 10/26/1993 | US5257155 Short-circuit proof field effect transistor |
| 10/26/1993 | US5256987 Power amplifier device having a plurality of power amplifier units connected in parallel |
| 10/26/1993 | US5256985 Current compensation technique for an operational amplifier |
| 10/26/1993 | US5256983 Wide band amplifier |
| 10/25/1993 | CA2094355A1 Method and device for compensating phase jitter in waves amplified by a microwave tube |
| 10/20/1993 | EP0565806A1 Accurate MOS threshold voltage generator |
| 10/14/1993 | DE4305850A1 Reference voltage generator e.g. for DRAM integrated circuit - has constant current source and negative feedback circuit with resistors and second FET in series between amplifier output and feed potential |
| 10/13/1993 | EP0564983A1 Micropower amplifier/transducer driver with signal expansion |
| 10/13/1993 | EP0564490A1 Improved switching amplifier |
| 10/12/1993 | US5253272 Digital data transmission system with adaptive predistortion of transmitted pulses |
| 10/12/1993 | US5252934 In and amplifier system |
| 10/12/1993 | US5252930 Predistorter for linearization of electronic and optical signals |
| 10/12/1993 | US5252928 Charge amplifier circuit |
| 10/06/1993 | EP0564114A1 Impedance matching and bias feed network |
| 10/06/1993 | EP0563125A1 Dynamically biased amplifier |
| 10/06/1993 | CN1022364C Dynamic offset amplifier |
| 10/05/1993 | US5251330 Linear transmitter |
| 10/05/1993 | US5250912 RF power amplifier |
| 10/05/1993 | US5250911 Single-ended and differential transistor amplifier circuits with full signal modulation compensation techniques which are technology independent |
| 09/30/1993 | WO1993019523A1 Distortion cancellation amplifier system |
| 09/30/1993 | WO1993019521A1 Feedforward amplifier |
| 09/29/1993 | EP0562683A2 A display device having a display tube including a cold cathode |
| 09/29/1993 | EP0562658A1 Amplifier arrangement |
| 09/29/1993 | EP0562414A1 Sound intermediate frequency amplifier for a broadcast receiver |
| 09/29/1993 | EP0562255A1 AM radio transmitter for various modulations, especially DSB, SSB, ISB |
| 09/28/1993 | US5249201 Transmission of multiple carrier signals in a nonlinear system |
| 09/28/1993 | US5248945 Power amplifiers |
| 09/23/1993 | DE4210463A1 Push=pull power amplifier for impedances with large reactance - uses first stage as control member for voltage-superimposing current source and second stage as control member for emitter follower |
| 09/22/1993 | EP0561754A1 An arrangement for eliminating offset errors in a power control circuit of a pulsed transmitter final amplifier |
| 09/22/1993 | EP0561346A1 Amplifier |
| 09/22/1993 | EP0561336A1 High-sensitivity, low-noise transistor amplifier |
| 09/22/1993 | CN1076566A Power amplifier combining network |
| 09/21/1993 | WO1993019524A1 High dynamic range modulation independent feed forward amplifier network |
| 09/21/1993 | US5247581 Class-d bicmos hearing aid output amplifier |
| 09/21/1993 | US5247542 QPSK power amplifier distortion correction system |
| 09/21/1993 | US5247211 Light-receiving circuit |
| 09/16/1993 | WO1993018609A1 Circuitry for superimposing small, low energy signals and large, essentially higher energy signals |
| 09/16/1993 | WO1993018602A1 Radio transmitter with linearization training sequence |
| 09/16/1993 | WO1993018582A1 Controlling amplifiers |
| 09/16/1993 | WO1993018581A1 Rf power amplifier with linearizattion |
| 09/14/1993 | WO1993018590A1 Power amplifier combining network |
| 09/14/1993 | US5245296 Audio amplifier circuit and method of operation |
| 09/14/1993 | US5245278 Device for the processing of a signal coming from a sensor with a derivative type of response |
| 09/14/1993 | US5245218 Electric circuit for stabilizing the transfer impedance of an integrated circuit |
| 09/08/1993 | EP0559545A1 Push-pull output stage for integrated amplifier |
| 09/08/1993 | EP0559247A1 Audio amplifier |
| 09/08/1993 | EP0559243A1 Comparator circuit comprising input signal attenuator |
| 09/08/1993 | EP0558793A1 Method for linear amplification of a useful signal and amplifier for the realisation of this method |
| 09/07/1993 | US5243656 Audio circuit |
| 09/07/1993 | US5243301 Microwave power amplifiers |
| 09/02/1993 | WO1993017492A1 Current detecting circuit |
| 09/02/1993 | WO1993017436A1 Offset-compensated sample and hold arrangement and method for its operation |
| 09/02/1993 | CA2130467A1 Offset-compensated sample and hold arrangement and method for its operation |
| 09/01/1993 | EP0557929A1 Control circuit for automatically controlled feed forward nonlinear distortion compensation amplifier |
| 08/31/1993 | US5241226 Circuit for suppressing the noise produced by switching between two voltage sources |
| 08/25/1993 | EP0557032A2 Class D amplifier |
| 08/25/1993 | EP0556927A1 Differential circuit with high linearity |
| 08/24/1993 | US5239693 Amplifier level-setting apparatus |
| 08/24/1993 | US5239508 Semiconductor memory device having a plurality of selectively activated data bus limiters |
| 08/24/1993 | US5239402 Push-pull optical receiver |
| 08/24/1993 | US5239210 Low distortion unity gain amplifier for dac |
| 08/19/1993 | WO1993016524A1 Amplifier circuit |
| 08/19/1993 | WO1993013593A3 Transimpedance amplifier |
| 08/18/1993 | CN1021867C New type all channel high frequency amplifier |
| 08/17/1993 | US5237493 Current-to-voltage converter with low noise, wide bandwidth and high dynamic range |
| 08/17/1993 | US5237288 RF power amplifier linearization |
| 08/17/1993 | US5237198 Lateral PNP transistor using a latch voltage of NPN transistor |
| 08/11/1993 | EP0554755A2 Circuit for generating a control signal during the commutation of a switch from one position to the next |
| 08/11/1993 | EP0554743A1 Differential amplifier with common-mode stability enhancement |
| 08/10/1993 | US5235289 Transmission power amplifier device |
| 08/10/1993 | US5235288 Amplifier stage for low-resistance ac voltage sources |
| 08/05/1993 | WO1993009599A3 Analog-to-digital converter and method of fabrication |
| 08/04/1993 | EP0554193A1 Offset compensation device for an input stage |
| 08/04/1993 | EP0554097A1 Control device for power amplifier |
| 08/03/1993 | US5233496 Electronic equipment incorporating an integrated btl circuit |
| 08/03/1993 | US5233313 High power field effect transistor amplifier |
| 08/03/1993 | US5233312 DC feedback circuit using sample and hold circuits |
| 07/31/1993 | CA2087744A1 Control device for power amplifier |
| 07/28/1993 | EP0552964A2 Reference circuit |
| 07/28/1993 | EP0552716A2 Integrated transistor circuit |
| 07/28/1993 | EP0552494A2 Method and circuit for offset correction in a TDMA radio receiver |
| 07/28/1993 | EP0552316A1 Circuit for reducing intermodulation on the use of semiconductor lasers for optical information transmission |
| 07/27/1993 | US5231316 Temperature compensated cmos voltage to current converter |
| 07/27/1993 | US5231315 Temperature compensated CMOS voltage to current converter |