Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8044677 | Electrical system, voltage reference generation circuit, and calibration method of the circuit A voltage generation circuit that includes: a voltage generator integrated in a semiconductor chip and structured to generate an output voltage in accordance with a calibration parameter; a heater operable to heat the voltage generator; a control device configured t... | 10/25/2011 |
| 7893684 | Integrated power detector with temperature compensation for fully-closed loop control An amplifier circuit comprises a detection power input circuit for receiving an RF signal, and a bias circuit that includes an output for generating a bias signal in response to a reference control voltage. The power detector further comprises a detection circuit fo... | 02/22/2011 |
| 7852063 | Integrated power detector with temperature compensation for fully-closed loop control An amplifier circuit comprises a detection power input circuit for receiving an RF signal, and a bias circuit that includes an output for generating a bias signal in response to a reference control voltage. The power detector further comprises a detection circuit fo... | 12/14/2010 |
| 7372249 | Load measurement for a thermal microwave power sensor A thermocouple power sensor includes the ability to monitor the value of a RF load resistor. A meter connects to the input of a thermocouple-based RF signal power detector. The apparatus can sense its own load resistor DC impedance, so it can detect both aging in an... | 05/13/2008 |
| 7355456 | Wide linear range peak detector A wide linear range peak detector including first and second peak detectors and a compensation circuit. The first peak detector receives an input signal and has an output providing a first peak signal approximation which approximates a peak level of the input signal... | 04/08/2008 |
| 7340366 | Method and apparatus of temperature compensation for integrated circuit chip using on-chip sensor and computation means A method and apparatus of temperature compensation for an integrated circuit using on-chip circuits, sensors, and an algorithm. The chip includes an on-chip reference circuit, an on-chip sensor measuring a parameter relative to the reference, and an on-chip computat... | 03/04/2008 |
| 7246022 | Initiation of differential link retraining upon temperature excursion A method includes detecting a change in temperature in an integrated circuit that is coupled to a differential communication link, and responding to the detected change in temperature by initiating a retraining process for the differential communication link. ... | 07/17/2007 |
| 7239123 | Multiplexed dual-purpose magnetoresistive sensor and method of measuring current and temperature The present invention determines temperature and current from resistance measurements of a single magnetoresistive sensor. A dual-purpose sensor includes the magnetoresistive sensor having a single pair of terminals. The sensor is multiplexed under separate current ... | 07/03/2007 |
| 7224158 | Circuit arrangement and a method for compensating changes of a transfer factor of a magnetic field sensor arrangement The invention relates to a circuit configuration for compensating for the changes in a transfer ratio of a magnetic field sensor arrangement. According to one embodiment of the invention, a control loop for effecting this compensation is provided in the form of an i... | 05/29/2007 |
| 7183846 | Device for detecting the power of a signal and integrated circuit with amplifier and related power detection device The present invention describes a device for detecting the power of a first signal at a given frequency. The device comprises a first circuit means for detecting the envelope of the first signal and a second circuit means coupled to the first circuit means and suita... | 02/27/2007 |
| 7089736 | Variable nozzle turbo (VNT) solenoid temperature estimator A method of creating a solenoid temperature estimator includes operating a solenoid based on a data point including a plurality of operating parameters and determining a temperature of the solenoid. The method further includes recording steady-state values for the t... | 08/15/2006 |
| 7010284 | Wireless communications device including power detector circuit coupled to sample signal at interior node of amplifier A multi-stage amplifier is coupled with a power detector. The multi-stage amplifier includes a plurality of amplifier stages in series, with a signal path extending through them. The power detector is coupled to an interior node of the amplifier along the signal pat... | 03/07/2006 |
| 7002360 | System and method for measuring the thickness or temperature of a circuit in a printed circuit board System for measuring a thickness of a circuit component on a printed circuit board (PCB). The system includes a first circuit, a power plane, a power strip, a calibration strip, a temperature sensor, and a second circuit. The power plane is coupled to the first circ... | 02/21/2006 |
| 6974252 | Failsafe mechanism for preventing an integrated circuit from overheating Techniques for preventing an integrated circuit (IC) from overheating are described herein. According to one embodiment, an exemplary process includes detecting whether a temperature of an integrated circuit (IC) exceeds a threshold independent of an operating state... | 12/13/2005 |
| 6972556 | System and method for measuring the power consumed by a circuit on a printed circuit board A system for measuring power of a circuit on a printed circuit board (PCB) including first and second circuits, a power strip, a power plane, and a calibration strip. The power strip is connected to the power plane to the first circuit, is embedded in the PCB during... | 12/06/2005 |
| 6960926 | Method and apparatus for characterizing a circuit with multiple inputs A method of characterizing a circuit comprises the steps of measuring a first delay associated with the circuit when the circuit is substantially unloaded; measuring a second delay associated with the circuit when the circuit is loaded by a predetermined impedance; ... | 11/01/2005 |
| 6850859 | Sensor drift compensation by lot Drift compensation systems and methods are presented for compensating the drift of a sensor within a manufacturing lot. The system comprises a sensor test sample manufactured from a lot of material having substantially similar chemical or metallurgical properties, a... | 02/01/2005 |
| 6767745 | Method for measuring stress levels in polymeric compositions A method of measuring inductance or inductive reactance of a sample is provided. The method comprises the steps of: (a) providing an instrument for measuring the inductance or the inductive reactance of the sample; (b) subjecting a portion of the instrument to diffe... | 07/27/2004 |
| 6639395 | Current sensor with input/output isolation A current sensor and a method for measuring currents on an integrated circuit in an isolated manner. The current sensor uses a Peltier device as a thermal difference generator to generate a first temperature at a temperature generating junction and a seco... | 10/28/2003 |
| 6559631 | Temperature compensation for an electronic electricity meter An electricity meter which, in one embodiment, includes a temperature sensing unit for determining a signal representative of the temperature within the meter is described. In the one embodiment, the meter includes a current sensor, a voltage sensor and a... | 05/06/2003 |
| 6531860 | Integrated power detector with temperature compensation A power detector (50) detects a power level of an amplified signal (S20) produced by a power amplifier (16) on the same integrated circuit (100). The power detector compensates for an effect of temperature variations on the magnitude of the detected power... | 03/11/2003 |
| 6486661 | Sensor bias drift compensation A method of removing bias drift from the output signal of a sensor is provided. The method includes sensing a condition with a sensor and generating an output signal, differentiating the output signal, and comparing the differentiated output signal with a... | 11/26/2002 |
| 6459254 | Power sensing RF termination apparatus including temperature compensation means A power sensing RF termination comprising a calibration means allows the user to correct for part-to-part variation, miss match loss and output offset. The power sensing RF termination comprises a first and second temperature sensitive resistors connected... | 10/01/2002 |
| 6388853 | Method and apparatus providing final test and trimming for a power supply controller A power supply controller having final test and trim circuitry. In one embodiment, a power supply controller for switched mode power supply includes a selector circuit, a trim circuit, a shutdown circuit and a disable circuit. The trim circuit includes a ... | 05/14/2002 |
| 6373237 | Electronic scale having a sleep mode in addition to a standby operating mode Electronic scale including a line power voltage supply (5); a line switch (9); and a separate voltage supply (20), which is independent of the line powered voltage supply (5) and which supplies at least one clock module (22) with voltage. The scale has a ... | 04/16/2002 |
| 6307666 | Voltage sensing systems and methods for passive compensation of temperature related intrinsic phase shift A small sized electro-optic voltage sensor capable of accurate measurement of high levels of voltages without contact with a conductor or voltage source is provided. When placed in the presence of an electric field, the sensor receives an input beam of el... | 10/23/2001 |
| 6121766 | Current sensor assemblies A current sensor assembly of planar form arranged for connection in series with an electrical circuit. The circuit includes a first and second conductor. The sensor assembly includes a first conductive member adapted to contact the second conductor in the... | 09/19/2000 |
| 6118268 | Thermoelectric measuring device A thermoelectric measurement converter is disclosed, which forms the output signal as the product of the instantaneous values of two input signals; wherein the measurement converter comprises at least one electronic resistor and at least one temperature s... | 09/12/2000 |
| 6084462 | Temperature sensing circuits A temperature sensing circuit suitable for integration with a power semiconductor device (MOSFET/IGBT) includes temperature-sensing p-n diode means (D1, D2, etc . . . ) integrated together with first and second IGFETs (M1 and M2). A current path through t... | 07/04/2000 |
| 6054848 | Method and apparatus for detecting electromagnetic waves A detector facilitates visualization of electromagnetic radiation, including radio frequency radiation. The electromagnetic radiation is converted to thermal energy by partial absorption of the radiation, and is made visually observable by coupling the pa... | 04/25/2000 |
| 5901114 | Circuit for measuring the cut-off time of an electronic system A circuit for measuring the duration of a cut-off period in the power supply to an electronic system, for example the control system of a motor vehicle starter, comprises a voltage splitting bridge and a processing unit receiving the output of the splitti... | 05/04/1999 |
| 5640085 | Temperature compensation circuit A temperature compensation circuit for a power measurement device includes an input sensor, with a temperature-dependent transmission factor (KH,T), connected to a signal processor with a temperature-dependent transmission factor (KS... | 06/17/1997 |
| 5534773 | Method for compensating an offset voltage temperature drift in a semiconductor strain gage sensor A method for compensating an offset voltage temperature drift in a semiconductor strain gage sensor in which a temperature-sensitive power supply is modeled as the one for providing the output voltage V0 =KVS (1+T), and, under... | 07/09/1996 |
| 5461309 | Device for measuring temperature using a Rogowski coil A Rogowski coil is used as a precise current and temperature measuring device (in particular a device that is highly insensitive to temperature variations). The Rogowski coil is of the type including at least one printed circuit plate provided with a circ... | 10/24/1995 |
| 5461307 | Electro-optical current sensing system and method for sensing and avoiding thermally induced measurement error therein An electro-optics current sensing system for sensing and avoiding thermally induced measurement errors in a current sensor includes a beam generator, such as a light emitting diode or a laser diode, thermally coupled to the current sensor for encoding int... | 10/24/1995 |
| 5451865 | Method and apparatus for sensing an input current with a bridge circuit A current sensor includes first and second branches interconnected by a center conductor magnetically coupled to an annular current comparator for producing an output signal related, in magnitude and phase, to an input current. The input current divides, ... | 09/19/1995 |
| 5379630 | Thermal conductivity detector In one embodiment, a thermal conductivity detector in a gas chromatograph is provided with a sensor connected in a resistive bridge with an alternating voltage applied to the bridge. Changes in thermal conductivity of a gas in the sensor cause changes in ... | 01/10/1995 |
| 5341088 | System for rating electric power transmission lines and equipment A system for determining the current carrying capability of one or more overhead power transmission lines monitors one or more spans of each line on real-time basis and identifies the span having the lowest current carrying capacity which in turn establis... | 08/23/1994 |
| 5313165 | Temperature-compensated apparatus for monitoring current having controlled sensitivity to supply voltage An apparatus for monitoring current through a lamp circuit that uses a series resistance shunt in the circuit with one end connected to a current source and the second end connected to the lamp. The apparatus includes a comparator that is connected across... | 05/17/1994 |
| 5247244 | Electro-optic voltage measuring system with temperature compensation As the dielectric constant and the halfwave voltage of electro-optic crystals having a fourfold axis of rotary inversion are oppositely dependent on the absolute temperature, but their product is nearly independent of temperature, temperature compensation... | 09/21/1993 |
