Searching:
Search by keyword, patent number, inventor, assignee, city or state:
| Patent # | Description |
|---|---|
| US-5,689,219 |
Summing network A summing network for combining and feeding radio frequency signals supplied by radio transmitters to common antenna means, includes conductors, connectors and a... |
| US-5,689,218 |
Tap for extracting energy from transmission lines A tap for coupling electromagnetic energy between first and second coaxial cables. The tap comprises a pair of coupled transmission lines, means for connecting... |
| US-5,689,217 |
Directional coupler and method of forming same A multi-layer substrate (500) includes a segmented stripline (602) which is formed of multi-layered segment (514, 522, 516) and is proximately coupled to a... |
| US-5,689,216 |
Direct three-wire to stripline connection A transition for providing connection between a stripline transmission line which is buried in a substrate and the surface of the substrate where components are... |
| US-5,689,215 |
Method of and apparatus for controlling reactive impedances of a
matching network connected between an RF... An r.f. field is supplied by a reactive impedance element to a plasma in a vacuum plasma processing chamber. The element and source are connected via a matching... |
| US-5,689,214 |
Electromagnetic wave generator for influencing biomagnetic fields An electromagnetic wave generator for influencing different corporal states in a biological organism includes an oscillator circuit coupled to a microcontroller... |
| US-5,689,213 |
Post-fabrication programmable integrated circuit ring oscillator A ring oscillator composed of a plurality of series connected inverters, the number of which may be varied after fabrication of the ring oscillator by... |
| US-5,689,212 |
Large-scale integration monolithic microwave amplifier with tree-like
distributed topology Disclosed is a novel topology of monolithic, microwave amplifiers with high integration. This is a more compact topology, divided into a two-level or tree-like... |
| US-5,689,211 |
Quiescent current control for the output stage of an amplifier The invention is an amplifier such as an operational amplifier having an output stage with a reduced quiescent current control transistor device area that... |
| US-5,689,210 |
Active distributed signal sampler A circuit that samples a through signal, while minimizing attenuation, distortion, or other perturbation to the through signal and sampled signal. The present... |
| US-5,689,209 |
Low-side bidirectional battery disconnect switch A bidirectional battery disconnect switch, i.e., a switch which is capable of blocking a voltage in either direction when open and conducting a current in either... |
| US-5,689,208 |
Charge pump circuit for high side switch A high side monolithic switching circuit integrated into a silicon chip is described in which the charge pump is connected to the ground terminal by a constant... |
| US-5,689,207 |
Front-end circuit A front-end circuit which receives a first input signal and a second input signal, and outputs an output signal having a differential frequency between the first... |
| US-5,689,206 |
Sc-integrator with switchable polarity An SC-integrator comprises an amplifier connected to a circuit network, which includes an integrating capacitor and a storage capacitor. The storage capacitor is... |
| US-5,689,205 |
Switched current differentiator A switched current differentiator includes first and second interconnected current memory cells, An input current is applied to terminal (1) and is fed on line... |
| US-5,689,204 |
Clipper circuit for clipping an upper or lower portion of a
uni-directional sinusoidal voltage signal A clipper circuit for clipping an upper portion and/or lower portion of a uni-directional sinusoidal voltage signal. The clipper circuit comprises a ... |
| US-5,689,203 |
Self-calibration circuit for pulse-train tranducer signals A self-calibration circuit for sensors and transducers that produce pulse-train outputs of the type having a count-until-disabled counter (250) which counts the... |
| US-5,689,202 |
Integrated circuit for automatic determination of PCI signaling
environment--either 3.3V or 5V An integrated circuit automatically detects a Peripheral Component Interconnect signaling environment, which may be based on either a first voltage or a second... |
| US-5,689,201 |
Track-and-hold circuit utilizing a negative of the input signal for
tracking A track-and-hold circuit that utilizes the negative of the input signal to improve tracking of the input signal during the track mode. By applying the negative... |
| US-5,689,200 |
High speed glitch-free transition detection circuit with disable control A high speed clock-positive edge detection circuit with chip select control that produces a glitch-free transition detection pulse is described. The circuit... |
| US-5,689,199 |
Comparator with hysteresis in bipolar technology A comparator with hysteresis in bipolar technology having a voltage/current converter with a voltage input forming the comparator input connection, and a current... |
| US-5,689,198 |
Circuitry and method for gating information A first inverter includes a first input coupled to a first input node. Also, the first inverter includes a first output coupled to an output node. Further, the... |
| US-5,689,197 |
BIMOS-type current switch apparatus A current switch apparatus includes a bipolar transistor controlled by a reference voltage, a MOS transistor controlled by a logic signal, and a constant current... |
| US-5,689,196 |
Circuit comprising a data communication bus Information is supplied to a bus in a wired logic function, the potential on the bus either being pulled down to ground level or remaining at supply level. The... |
| US-5,689,195 |
Programmable logic array integrated circuit devices A programmable logic array integrated circuit device includes a plurality of regions of programmable logic disposed on the device in a two-dimensional array of... |
| US-5,689,194 |
Acoustic motor current signature analysis system with audio amplified
speaker output An apparatus for monitoring and processing of motor currents to determine motor characteristics under various loads. In the preferred embodiment, the invention... |
| US-5,689,193 |
Probe head, method for manufacturing the same, and inspecting method
using the same Probes include proximal ends electrically connected to the respective conductive patterns of said insulating substrate, and free ends for being contact with the... |
| US-5,689,192 |
Method for simulating a controlled voltage for testing circuits for
electromagnetic susceptibility Apparatus and method for low cost monitoring the level of signal at a test point in a system for susceptibility to electromagnetic fields. A probe, including a... |
| US-5,689,191 |
Terminal-in-connector checking device A terminal-in-connector checking device consists of a mount (51), a connector holder (54) fixed on the mount for holding a connector in position, a continuity... |
| US-5,689,190 |
Magnetic resonance imaging apparatus including a main magnet having
opposed pole faces which are inclined with... A magnetic resonance imaging apparatus includes a main magnet having a frame (19) with two magnetic elements (1) arranged thereon. The magnetic elements (1) have... |
| US-5,689,189 |
Technique for designing distributed radio frequency coils and
distributed radio frequency coils designed thereby A localized coil (30) is disposed in the temporally constant magnetic field of a magnetic resonance imaging system. The localized coil is designed in five steps:... |
| US-5,689,188 |
Magnetic resonance apparatus Magnetic apparatus resonance includes a mainly cylindrical RF coil (9) which has a central axis (35) extending in its longitudinal direction and comprises a... |
| US-5,689,187 |
RF receiver coil configuration for an NMR spectrometer An RF receiver coil configuration for NMR spectrometers has at least two largely mutually orthogonal RF receiver coil systems of which at least one is made from... |
| US-5,689,186 |
Method for producing an off-center image using an EPI pulse sequence An off-center NMR image is produced using an EPI pulse sequence. The offset along the readout gradient axis is achieved by shifting the frequency of an RF... |
| US-5,689,185 |
Compact device for measuring magnetic fields having magnetoresistors and
an auxiliary magnetic field generator A device for measuring magnetic fields comprises an assembly of at least two magnetic field sensors each of which comprises a number of magnetoresistive sensor... |
| US-5,689,184 |
Large scale metallic object detector Apparatus for detecting a magnetizable or conductive object which passes through a magnetic detecting field. The apparatus includes first and second spaced coils... |
| US-5,689,183 |
Electromagnetic-induction type inspection device employing two induction
coils connected in opposite phase relation An electromagnetic-induction type inspection device for inspecting a test specimen by placing the specimen in electromagnetic fields produced by exciting coils,... |
| US-5,689,182 |
Magnetic sensor with bobbin, sleeve and terminal bed for detecting a
change in magnetic flux The magnetic sensor comprises a sensor assembly, and a resin molding member surrounding the sensor assembly and defining a housing, the sensor assembly... |
| US-5,689,181 |
Brushless motor speed detecting apparatus for reducing generation of
spike voltage A brushless motor speed detecting apparatus includes a stator having three-phase driving coils which are energized reciprocally in the positive and negative... |
| US-5,689,180 |
Isolated electrical power supply A isolated power supply for protecting electrical devices from transient voltages and currents is disclosed. Specifically, the filter has a toroid and resistor... |
| US-5,689,179 |
Variable voltage regulator system The present invention relates to a variable voltage regulator that can be easily adjusted via a jumper, or a signal (provided by another circuit) so that the... |
| US-5,689,178 |
Self-oscillation type DC-DC converter having a driving transistor
connected in parallel to a circuit element... The present invention provides a self-oscillation type DC-DC converter that can perform self-oscillating operation without disposing a feedback winding in a... |
| US-5,689,177 |
Method and apparatus to regulate a voltage controller The present invention is directed to an automatic voltage controller for an electrostatic precipitator. The invention maintains a database of operating... |
| US-5,689,176 |
Power factor/harmonics correction circuitry and method thereof The power factor/harmonic correction circuitry accomplishes this by using a non-linear ramp signal and/or by using a negative feedforward technique. The power... |
| US-5,689,175 |
Voltage regulator for an electrical power system A digital voltage regulator for an electrical power system including a permanent magnet generator (PMG), an exciter, and a main generator. A controller... |
| US-5,689,174 |
Electrical power system An electrical power plant has a rotator means (1) that rotates one or more alternators (6, 8) to generate electrical current that is transmitted to one or more... |
| US-5,689,173 |
Battery pack The dangers of excessive battery current and battery heating are effectively prevented by maintaining a heat sensitive cut-off device in the cut-off state as... |
| US-5,689,172 |
Charging battery system for video camera An electronic equipment having a rechargeable battery in combination with a power source adapter. A rechargeable battery is detachably mounted in the electronic... |
| US-5,689,171 |
Battery charger A battery charger designed for use with a portable battery powered device. The battery charger has a housing and two battery charger ports defined therein, each... |
| US-5,689,170 |
Fail-safe control apparatus for electric vehicle driving motor A PWM generation block implements two-phase/three phase conversion of torque current and exciting current and, on the basis of the converted three-phase torque... |
Copyright 2008−2012 Patents.com
