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| Number | Title | Issue Date |
| 7795762 | On-chip high frequency power supply noise sensor The on-chip power supply noise sensor detects high frequency overshoots and undershoots of the power supply voltage. By creating two identical current sources and attaching a time constant circuit to only one, the high frequency transient behavior differs while the ... | 09/14/2010 |
| 7288858 | Circuit arrangement for controlling a sensor To provide a circuit arrangement for controlling a sensor by means of a power supply source which is connected to input terminals of the sensor, and an evaluation circuit which is connected to output terminals of the sensor, by means of which the current consumption... | 10/30/2007 |
| 7191269 | Method for multiple sensors to communicate on a uni-directional bus The present invention provides a system of and a method for multiple transmitters to communicate data over a single uni-directional communication bus. In one form of the present invention, a data communication system using time-domain multiplexing includes a uni-dir... | 03/13/2007 |
| 7148589 | Method and apparatus for controlling internal heat generating circuit In a computer system constituted by a portable computer and a deskstation used to expand the function of the portable computer, the portable computer has a communication connector used for communication with the deskstation, in addition to a connector for connecting... | 12/12/2006 |
| 7091633 | Current-limiting logic interface circuit A circuit of interface between a logic sensor and a logic input isolation barrier of a processing circuit, including an element of protection against input overvoltages, a current-limiting circuit connected in series between an input terminal and an output terminal ... | 08/15/2006 |
| 6946752 | Input power stabilizing circuit An input power stabilizing circuit, adapted to be disposed between a DC power source and a load to which DC power from the source is to be supplied. Voltage on a capacitor in the input power stabilizing circuit is prevented as much as possible from causing reverse c... | 09/20/2005 |
| 6777831 | Electrochemical processing power device The present invention discloses a power supply device, particularly for supplying a controlled electrical signal in an electrochemical process, e.g., plating, etching, etc. The power delivery device provides an electrical signal with optimal characteristics and sett... | 08/17/2004 |
| 6714881 | Time reference compensation for improved metering accuracy A method for time reference compensation in a power metering system, the method comprising monitoring a time-dependent characteristic of incoming AC power over a predetermined local time interval, comparing the monitored characteristic over the predetermined local t... | 03/30/2004 |
| 6657325 | Multiple fan sensing circuit and method for monitoring multiple cooling fans utilizing a single fan sense input A multiple fan sensing circuit for use with a single fan sense input and method of operation thereof. The multiple fan sensing circuit includes a logic circuit, coupled to the fan sense input, that combines feedback signals from a first fan and a second f... | 12/02/2003 |
| 6437607 | Non linear circuit for open load control in low-side driver type circuits Non linear circuit for open load control in Low-Side Driver type circuits, including at least two power transistors, scaled according to an area ratio 1 to M, with M>1, wherein the power transistor having the smaller area is controlled by a circuit input ... | 08/20/2002 |
| 5843567 | Electrical component containing magnetic particles There is disclosed an electrical component having an axial direction and two ends for making electrical contact with another component comprising a plurality of electrically conductive fibers in a matrix, the plurality of the fibers being oriented in the ... | 12/01/1998 |
| 5471488 | Clock fault detection circuit An apparatus for transferring data between a main processor and its memory and a packet switch includes a first bus coupled to the main processor and its memory, a bidirectional first-in-first-out (FIFO) buffer coupled between the first bus and a second b... | 11/28/1995 |
| 4897561 | Apparatus for and method of discriminating signals A signal discriminator adapted to discriminate a signal with a specific frequency out of a current composed of two or more superimposed components with different frequencies. One type of signal discriminator disclosed includes a first coil composed of a p... | 01/30/1990 |
| 4845384 | Dynamic logic units Dynamic logic units utilize magnetic cores of rectangular hysteresis loop material wound with an input winding, a pair of output windings connected to a CMOS flip-flop, and a d-c control winding. With a d-c current on the control winding, the core experie... | 07/04/1989 |
| 4789795 | Logic voting-circuit A majority logic voting system employs at least three magnetic AND gates, each having first and second inputs and an output. The first input to each gate is connected as the second input to another gate and the outputs are connected in common so that the ... | 12/06/1988 |
| 4684827 | Circuit arrangement for detecting a current in power supply devices A circuit arrangement for detecting a current flowing over a path in a power supply device, which arrangement includes a choke having a primary winding and a measuring winding, with each winding having first and second ends and the choke being connected s... | 08/04/1987 |
| 4642616 | Method and apparatus for detection of AC power failure conditions An apparatus and method for detecting an AC power failure condition employs a fast attack, slow decay, energy storage circuit for tracking an AC input signal and for providing a slowly decaying output based upon a last received peak voltage input value. A... | 02/10/1987 |
| 4611291 | Vital interface system for railway signalling An interface system providing vital inputs to and vital outputs from a vital processor of railway signals for railway signalling and control purposes, utilizes non-vital components such as diodes and transistors. The input interface translates a railway s... | 09/09/1986 |
| 4147562 | Pyroelectric detector A pyroelectric detector as formed by parylene C polymer film.... | 04/03/1979 |
| 4047046 | Circuit for setting magnetic remanence in a magnetizable core A circuit for selectively variably setting the magnetic remanence in a magnetizable core employs flux circuit feedback, including feedback initiating a self-blocking oscillator type of operation, to achieve designs of two or three (as the designer may des... | 09/06/1977 |
| 4023155 | Ultrasonic tape intrusion detection system An active ultrasonic perimeter intrusion detection system comprises an elongated flexible electret tape capable of being stored on and deployed from a reel or the like and connectable when deployed to a signal generator operating at ultrasonic frequencies... | 05/10/1977 |
| 4008432 | Apparatus for detecting an external magnetic field Apparatus for detecting an external magnetic field comprises a magnetic sensor which produces para-magnetic oscillations and includes an elongated member of an electrically conductive material and a thin magnetic film disposed thereabout. Alternative embo... | 02/15/1977 |
| 4006408 | Magnetic material detecting device A magnetic substance detecting device is disclosed as being capable of parametric oscillation, and including a magnetic sensor formed of an elongated wire with a magnetic thin film plated on the wire, the film being of uniaxial magnetic anisotropy and hav... | 02/01/1977 |
| 3999104 | Electronic safety circuits Electronic safety circuit intended to produce an output signal in the event of wearing out or failure of one of its components, the circuit comprising a magnetic circuit having a rectangular hysteresis cycle, a control circuit connected to the magnetic ci... | 12/21/1976 |
| 3953682 | Loop current detector A loop current detector for detecting current flowing in a pair of telephone wires comprises: A. a saturable reactor having first, second and third windings, the first and second windings adapted to be connected in a loop circuit to pass DC current, B. re... | 04/27/1976 |
