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| Number | Title | Issue Date |
| 7367839 | Feed line for a local coil for magnetic resonance imaging with standing wave barrier integrated into the plug thereof Feed line for at least one local coil in a magnetic resonance tomography apparatus, comprising at least one coil plug as well as at least one standing wave barrier for suppression of unwanted radio-frequency currents on a conductor cable of the feed line, with the s... | 05/06/2008 |
| 7259640 | Miniature RF and microwave components and methods for fabricating such components RF and microwave radiation directing or controlling components are provided that may be monolithic, that may be formed from a plurality of electrodeposition operations and/or from a plurality of deposited layers of material, that may include switches, inductors, ant... | 08/21/2007 |
| 7144272 | Coaxial cable connector with threaded outer body A connector for coaxial cable is disclosed herein that has an outer body, the outer body has at least one thread on a rearward portion thereof, and tubular post having at least one projection thereon. The outer body and the tubular post are movable relative to one a... | 12/05/2006 |
| 6861893 | Circuit arrangement for a current-controlled resistor having an enlarged linear range The invention relates to a circuit arrangement for a current-controlled resistor having an enlarged linear range, using an arrangement of non-linear bipolar load elements wherein the resistance is generated between a first terminal (E) and a second terminal (F), hav... | 03/01/2005 |
| 6552599 | Diode circuit with ideal diode characteristic A circuit configuration produces an at least approximately ideal diode characteristic on the basis of a diode. A power MOSFET has a control path connected in parallel with the diode, a load path forming connection terminals of the ideal diode, and a gate ... | 04/22/2003 |
| 6081151 | Electronically controlled variable attenuator The present invention relates to a variable power-attenuation circuit whose attenuation is controlled electronically by a control voltage (Vc). This circuit includes resistive elements (R20, R21, D20, D21) of which at least two resistive elements are diod... | 06/27/2000 |
| 6037819 | High frequency clock signal generator A high frequency clock signal generator (10) is disclosed. The clock signal generator includes a power supply (12, 14), a first resonant tunneling diode (18) coupled to a first terminal of the power supply and an output node (22), and a second resonant tu... | 03/14/2000 |
| 6011420 | ESD protection apparatus having floating ESD bus and semiconductor structure An apparatus for protecting an integrated circuit against damage from electrostatic discharges (ESD) includes a single ESD bus that is connected to multiple input pads through a respective diode. The ESD bus is isolated from the positive power supply bus ... | 01/04/2000 |
| 5969561 | Integrated circuit having a variable RF resistor A bipolar radio frequency (RF) integrated circuit having a functional equivalent of a PIN diode. The RF integrated circuit includes a low frequency lateral PNP transistor having an emitter having a P+ region, a collector having a P+ region, a base having ... | 10/19/1999 |
| 5900747 | Sampling phase detector The sampling phase detector whose output signal (fd) has a very broad-band and a very even frequency response characteristic includes a step-recovery-diode (SRD) to which a series circuit including at least two diodes (D1,D2) is connected in parallel by m... | 05/04/1999 |
| 5900767 | Electronic devices comprising an array A large-area electronic device comprises an array (1) of device elements (2,3) coupled to row and column conductors (A and B). The column conductors (B) are arranged in groups, (e.g M, M+1, M+2), and a column multiplexer circuit (C) couples the column con... | 05/04/1999 |
| 5818120 | Circuit for limiting an overvoltage on a control switch connected in series with an inductive load An overvoltage limiting circuit having first and second terminals to produce a temperature-stable voltage proportional to an overvoltage condition. The overvoltage limiting circuit includes a first transistor having a first terminal connected to the first... | 10/06/1998 |
| 5789968 | Controllable semiconductor switch An integrated semiconductor circuit comprising an output terminal connected to a ground terminal via a series connection of a first switching transistor and a second switching transistor of inverse polarization with respect to the latter, each of said swi... | 08/04/1998 |
| 5767704 | High frequency analog switch for use with a laser diode In a laser diode which forms read and write functions upon an electro-optic memory, a drive circuit provides power modulation during the read function and sufficient power to perform a write function. During a read function, transistors connected in an em... | 06/16/1998 |
| 5736890 | Method and apparatus for controlling transistors as rectifiers A rectifying device comprising of a SRMOS, an inductor, and a control circuit is disclosed. The SRMOS has a gate, a drain, and a source. The gate of the SRMOS is connected to the output of the control circuit. The inductor is connected to the drain of the... | 04/07/1998 |
| 5731999 | Method of controlling clamp induced ringing A method of designing improved CMOS input circuits by understanding and selecting appropriate drive strength for a CMOS output from a previous stage. The method involves modeling the net using HSPICE and including a transit time term to accurately model c... | 03/24/1998 |
| 5726598 | Semiconductor device having voltage sensing element A semiconductor device having a voltage sensing element is disclosed which allows reduction of power consumption in comparison with a conventional device and enables to obtain a sufficient output voltage to secure sensing accuracy even when an input volta... | 03/10/1998 |
| 5717357 | Output circuit for selectively outputting a signal at one of two voltage levels An output circuit is provided for obtaining an output signal at one of two voltages regardless of the relative difference between the voltage levels. The output circuit includes a first switching circuit that contains two current sources for selectively p... | 02/10/1998 |
| 5701060 | On-chip high frequency damping for laser diode driver chips A laser diode driver chip is disclosed which has a circuit to substantially reduce a ringing on a laser diode driving current generated by the laser diode driver chip. This invention identifies that the ringing on the laser diode driving current is caused... | 12/23/1997 |
| 5694071 | Electronic device comprising means for compensating an undesired capacitance A device compensated for an undesired capacitance includes a first and a second node between which nodes the undesired capacitance is present. A diode driven in breakthrough is coupled between the first and the second node. As a diode driven in breakthrou... | 12/02/1997 |
| 5680073 | Controlled semiconductor capacitors A controlled capacitor system, which includes a capacitor element (C1) and a forward-biased diode element (D2) connected in series with the capacitor element (C1). The system is such that the diode element (D2) has a capacitance which is less than the cap... | 10/21/1997 |
| 5671437 | Quantum dot-tunnel device and information processing apparatus and method using same A novel quantum dot-tunnel device having a revolutionarily faster processing speed and higher processing precision than conventional computer computation, which device has an array consisting of a large number of quantum dots which confine electrons three... | 09/23/1997 |
| 5506527 | Low power diode A common dictionary definition of a "diode" is "any electronic device that restricts current flow chiefly to one direction." This definition covers not only the conventional two lead PN junction semiconductor device presently known in the prior art (refer... | 04/09/1996 |
| 5294843 | Freewheeling diode circuit A freewheeling diode device (10) for a commutation branch includes a first diode (12) with a soft recovery behavior and a second diode (14) with a snappy recovery behavior. The second diode (14) is connected in parallel to the first diode (12).... | 03/15/1994 |
| 5218313 | Frequency synthesizer for implementing generator of highly pure signals and circuit devices, such as VCO, PLL and SG used therein To output desired high purity signals, a frequency synthesizer was made to synthesize reference signals from a first and second signal generators in the same frequency band as a desired frequency band. Thereby, the resolution of the frequency synthesizer ... | 06/08/1993 |
| 5212408 | Ultra fast pin diode switch An electronic switch for selectably switching a high frequency signal between an input and an output. The switch comprises a switching element comprising at least two PIN diodes connected in series-opposed configuration between said input and said output.... | 05/18/1993 |
| 5164615 | Method and apparatus for zero temperature coefficient reference voltage devices A reference voltage device that consists of a series combination of reverse biased p-n junctions, forward biased p-n junctions, and Schottky hot carrier diodes. The relatively low voltage and low negative temperature coefficient of Schottky diodes permit ... | 11/17/1992 |
| 5142256 | Pin diode with field emission device switch A PIN diode switch employing an active switching field emission device having high intrinsic isolation to high frequency and microwave frequency energy signals and exhibiting integratability is provided.... | 08/25/1992 |
| 5081412 | Current conduction probe circuit A current conduction element otherwise known as a majed circuit comprising a first PN junction. The majed circuit is also comprised of a second PN junction connected in parallel with the first PN junction but which is biased oppositely therefrom. The firs... | 01/14/1992 |
| 5041739 | Substrate potential generating circuit A substrate potential generating circuit of the present invention includes a first charge-pump circuit which produces a higher-potential voltage whose polarity is the same as that of and whose potential is higher than that of the power supply voltage and ... | 08/20/1991 |
| 5036229 | Low ripple bias voltage generator A charge pump essentially incorporating parallel connections of low capacity charge pumps, where each low capacity charge pump is controlled by a clock signal, where the clock signal associated with a low capacity charge pump has a phase different than th... | 07/30/1991 |
| 5013999 | Voltage generating circuit using a Schottky barrier diode A temperature-compensated voltage generating circuit suited for an output stage of a logical circuit is provided. The voltage generating circuit includes a bipolar transistor, a first resistor connected between the collector and the base of the bipolar tr... | 05/07/1991 |
| 4956568 | Monolithic sampler A Monolithic Sampler is disclosed. The present invention overcomes the problem of inadequately low sampling rates that results from circuit designs or component limitations that constrain the bandwidths of previous instruments. The sampler includes five c... | 09/11/1990 |
| 4883984 | PIN diode switch A PIN diode switch suitable for switching radio-frequency voltages has a series circuit of two oppositely polarized PIN diodes, with a control current supplied to the junction between the two PIN diodes through the collector-emitter path of a transistor a... | 11/28/1989 |
| 4855617 | Schottky transistor logic floating latch flip-flop The disclosure relates to an STL flip flop circuit composed of a pair of latch circuits, the first latch circuit receiving R and S inputs and the clock signal and floating relative to the other latch circuit. The second latch circuit is referenced to grou... | 08/08/1989 |
| 4792923 | Bipolar semiconductor memory device with double word lines structure A semiconductor memory device having a plurality of word line pairs and drain lines, a plurality of bit line pairs, and a plurality of memory cells connected to both of the word line pairs and the bit line pairs at the cross points thereof, comprising: a ... | 12/20/1988 |
| 4791380 | Detector circuit with dual-diode compensation A detector circuit for radio-frequency signals is formed of a pair of matched diodes disposed on a common substrate which is heated by a temperature responsive feedback circuit to stabilize the temperature of the substrate and the diodes. A capacitor is c... | 12/13/1988 |
| 4788461 | Solid state inductance simulator An active choke circuit. The circuit can be used in place of a conventional discrete coil to permit a precise marriage of logic functions to analog functions in a telephone powered by the current in a telephone line.... | 11/29/1988 |
| 4749951 | Low-pass filter circuit with variable time constant A low-pass filter circuit comprises a low-pass filter including a series connection of first and second resistors and having one end connected to an input terminal and a capacitor connected between the other end of the series connection and the ground, a ... | 06/07/1988 |
| 4737730 | Peak detector circuit for FM measuring apparatus A peak detector circuit comprises a peak detecting diode circuitry for detecting peaks in an input FM demodulated signal, a capacitor connected to the output of the diode circuitry, a first resistor connected in parallel with the capacitor, and an amplifi... | 04/12/1988 |
