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| Number | Title | Issue Date |
| 7233174 | Dual polarity, high input voltage swing comparator using MOS input transistors A differential input comparator circuit comprises an input stage comprising dual polarity input voltages and an output stage adapted to output a differential voltage based on the input voltages, wherein the differential voltage is adapted to be transmitted to a comp... | 06/19/2007 |
| 5751191 | Reproducing signal amplifier and central value signal generator A magnetic recording device includes a magnetic disk drive for recording desired information as a magnetic signal and a reproducing signal amplifier for amplifying a small electric signal obtained by converting the magnetic signal. The reproducing signal ... | 05/12/1998 |
| 5103110 | Programmable power supply A programmable power supply having a plurality of channels wherein each channel is adapted to output a selectable DC voltage, AC voltage, DC current or AC current. Each channel is adapted to select a DC reference signal or an AC reference signal and to sc... | 04/07/1992 |
| 4833400 | High frequency multi-range attenuator having a high input impedance Attenuator having a high input impedance and several switching levels for high frequencies and oscilloscope and active probe comprising such an attenuator. A high frequency attenuator (15) having a high input impedance and several switching stages intende... | 05/23/1989 |
| 4525688 | Oscilloscope signal input circuit including an attenuator An improved signal input circuit suitable for use in wideband oscilloscopes includes a high impedance controllable attenuator stage.... | 06/25/1985 |
| 4051363 | Split-path receiver for fiber optics application A receiver for use with a photodiode in an electro-optical transmission l. First and second amplifier circuit channels are connected to an output port of a photodiode. One channel is provided with a wide-bandwidth amplifier for amplifying the high freque... | 09/27/1977 |
