Quotables
"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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 |
| 8188726 | Method and arrangement to determine the cell capacitor voltage of a cell of a multi-cell power converter An arrangement to determine a cell capacitor voltage value of a cell of a multi-cell power converter includes the cell and a control unit. The cell itself includes four power electronic valves interconnected as a full-bridge converter having a first and a second pha... | 05/29/2012 |
| 8174252 | Methods and systems for transmitting and receiving data from points along voltage transmission lines A method of receiving signals transmitted through a voltage carrying power line using an antenna module including the steps of: positioning a housing of the antenna module proximate to the voltage carrying power line such that an antenna being supported in the housi... | 05/08/2012 |
| 8125212 | Rotating coherent electromagnetic emission instrumentation apparatus The rotating coherent electromagnetic emission instrumentation apparatus provides instrumentation for cataloguing environmental anomalies that may occur along the circumferential path of a rotating electromagnetic (EM) wave beam having sufficient RPM that the instan... | 02/28/2012 |
| 8125211 | Apparatus and method for testing driver writeability strength on an integrated circuit An apparatus and method for testing driver write-ability strength on an integrated circuit includes one or more drive detection units each including a number of drivers. At least some of the drivers may have a different drive strength and each may drive a voltage on... | 02/28/2012 |
| 8115471 | Methods for measurement and characterization of interferometric modulators Various methods are described to characterize interferometric modulators or similar devices. Measured voltages across interferometric modulators may be used to characterize transition voltages of the interferometric modulators. Measured currents may be analyzed by i... | 02/14/2012 |
| 8093884 | Directional coupler One embodiment comprises a directional coupler system comprising a substrate having a top surface and a backside surface, with the backside surface comprising a metalization ground portion and an unmetalized portion. A power line is coupled to the top surface, with ... | 01/10/2012 |
| 8089264 | Voltage measuring circuit A voltage measuring circuit includes an under-voltage measuring circuit and an over-voltage measuring circuit. The under-voltage measuring circuit includes a first voltage comparator, a first zener diode, and a first light emitting diode. An inverting input of the f... | 01/03/2012 |
| 8054061 | Electric potential sensor The invention provides an electric potential sensor including, at least one detection electrode arranged for capacitive coupling with a sample under test and for generating a measurement signal, and a sensor amplifier adapted to receive the measurement signal as inp... | 11/08/2011 |
| 8040124 | Method and apparatus for monitoring leakage current of a faraday cup A current branch circuit is electrically coupled with a Faraday cup and an operation amplifier separately. The Faraday cup, the current branch circuit and the operation amplifier are formed as a portion of an ion implanter. When the Faraday cup is electrically coupl... | 10/18/2011 |
| 8030913 | Detector circuit with improved bandwidth A detector circuit for an operational bandwidth having a center frequency including a diode, a first inductor in series with the diode, a transmission line coupled across the diode on a first end of the transmission line, the transmission line having an impedance an... | 10/04/2011 |
| 8013589 | Semiconductor device A device includes a measurement target circuit including a first circuit, a switch provided to a measurement node of the first circuit and a second circuit connected to the measurement node of the first circuit through the switch; and a current measuring circuit inc... | 09/06/2011 |
| 8013590 | Sensor circuit A method of measuring signals related to a photodiode based sensor and calculating a corrected data value thereof is disclosed. A nominal reset voltage value of the photodiode may be measured. A knee point voltage may be applied to the photodiode and resets a voltag... | 09/06/2011 |
| 7994771 | Current measurement circuit, current detection circuit and saturation prevention and recovery circuit for operational amplifier A current measurement circuit includes: a constant-voltage loop circuit including an operational amplifier, and a first resistor for current detection connected to an output of the operational amplifier, the output of the operational amplifier being fed back to an i... | 08/09/2011 |
| 7969138 | Method for calibrating a motor control circuit to improve temperature measurement in a electrical motor A method enables measurement of an inverter loss within a motor control circuit for an appliance. The method includes applying a constant DC current generated from a first AC supply voltage to a motor winding through an inverter at a first duty cycle, measuring a fi... | 06/28/2011 |
| 7952343 | Current measurement circuit and method Apparatus (1) and corresponding method for measuring a current (10) in which a charge integrating circuit (2) integrates charge from the current to be measured (10) and applies a resulting change in voltage to a comparator circuit (4 | 05/31/2011 |
| 7948228 | Technique for measuring power source noise generated inside integrated circuit To accurately measure power source noise generated inside an integrated circuit, the power source noise measuring device comprises: a mutual inductor pair placed inside an integrated circuit, the mutual inductor pair including (i) a first inductor connected to betwe... | 05/24/2011 |
| 7944196 | RF detector with crest factor measurement An RF detector configured to provide two outputs, one being a function of the true RMS power level of an RF input signal, and the other being a function of the instantaneous/peak power of the RF input signal, normalized to the average power level. The RF detector in... | 05/17/2011 |
| 7928719 | Zero current detector for a DC-DC converter A zero current detector for a DC-DC converter includes a first transistor having a drain, a gate, and a source for sensing the voltage of a first terminal of a power transistor; a second transistor having a drain, a gate, and a source for sensing the voltage of a se... | 04/19/2011 |
| 7923983 | Method and apparatus for measuring AC voltages A method and apparatus for providing AC voltage measurements. The apparatus includes an AC voltage monitor for determining at least a first and a second voltage representing an AC voltage of an AC circuit, generating a serial data stream frame including data represe... | 04/12/2011 |
| 7884595 | Method for producing an electricity sensing device A method for producing an electricity sensing device with a one-piece, U-shaped bent current conductor of a certain length having a middle portion and two end portions and comprising in the middle portion the form of a rod having a non-rectangular conductor cross-se... | 02/08/2011 |
| 7880460 | Hardware in the loop motor simulation A simulator system is connected to simulate the connection of a mechanically loaded motor to a motor controller/driver. The simulator system includes a current transformer circuit for monitoring AC output currents provided by the motor controller/driver. A simulatio... | 02/01/2011 |
| 7876084 | Method for the determination of a voltage limit of a clutch actuating motor A method for the determination of a motor voltage limit, wherein a clutch actuator of an automated shift transmission remains motionless, including the steps of (a) raising or lowering a withstand voltage by an increment ΔU, starting from a current withstand voltag... | 01/25/2011 |
| 7868606 | Process variation on-chip sensor Improved process variation sensors and techniques are disclosed, wherein both global and local variations associated with transistors on an integrated circuit can be monitored. For example, respective circuits for sensing a global process variation, a local process ... | 01/11/2011 |
| 7812590 | Method for detection of the presence of a load and drive circuit Methods and apparatuses for detection of a presence of a load. A method may include, for example, applying and subsequently removing a supply voltage across the pair of nodes, comparing an electrical potential at one of the pair of nodes at a time after the supply v... | 10/12/2010 |
| 7812591 | High-speed signal detect for serial interface More accurate signal detection circuitry in serial interfaces, particularly on a programmable integrated circuit device, such as a PLD, includes a high-speed, high-resolution, high-bandwidth comparator, along with digital filtering, to reduce the effect of process, ... | 10/12/2010 |
| 7804288 | Current measuring arrangement of a frequency converter A method and a corresponding appliance for measuring the output current of a frequency converter, the frequency converter including a network bridge that can be connected to an AC network, a controllable three-phase load bridge that can be connected to an AC load, a... | 09/28/2010 |
| 7791328 | Method and system for calibrating a motor control circuit to improve temperature measurement in an electrical motor A method enables measurement of an inverter loss within a motor control circuit for an appliance. The method includes applying a constant DC current generated from a first AC supply voltage to a motor winding through an inverter at a first duty cycle, measuring a fi... | 09/07/2010 |
| 7782043 | Variable bandwidth DC bias for AC measurement system A method for controlling a measurement system includes providing a variable bandwidth DC bias loop for biasing a DUT; providing an AC measurement loop for measuring AC parameters of the DUT; disabling the AC measurement loop and selecting a high bandwidth for the DC... | 08/24/2010 |
| 7777477 | Frequency characteristic measuring circuit A frequency characteristic measuring circuit is disclosed, which includes a first diode element having differential input nodes and differential output nodes, thermally coupled to a resistance element of a differential amplifying circuit having the resistance elemen... | 08/17/2010 |
| 7741828 | Power disturbance detection circuit and method A method and apparatus are disclosed for detecting disturbances in an alternating current (AC) supply. A method includes a step of indicating a relationship between supplied AC voltage and a threshold voltage for at least a portion of each cycle of the supplied AC v... | 06/22/2010 |
| 7733079 | Clock distribution circuit and test method A clock distribution circuit having plural stages of buffers disposed along branch paths for dividing up a clock signal and configured in a manner that outputs of a plurality of buffers in a final stage and/or a middle stage are short-circuited, includes in relation... | 06/08/2010 |
| 7723975 | Current detecting circuit Indirect detection of current using a current mirror circuit is performed with good accuracy, with a small sized circuit. In a current detection circuit, a current detection current mirror circuit includes an output current transistor which supplies an output curren... | 05/25/2010 |
| 7719255 | Safe input circuit with one-channel peripheral connection for the input of a bus participant An input circuit for an input component is disclosed for enabling the safe reading of input signals applied to the input component. The disclosed input circuit for an input component, particularly a bus input component, enables the safe reading of input signals appl... | 05/18/2010 |
| 7701192 | System and method for removal of frequency-dependent timing distortion A method of preparing a signal for measurement includes receiving the signal and selecting a first edge and a second edge within the signal. The method also includes delivering the first edge to a time interval measurement system after expiration of a first delay pe... | 04/20/2010 |
| 7688057 | Noise diagnosis of operating conditions for an electromagnetic flowmeter An analysis circuit in an electromagnetic flowmeter provides diagnostic operating conditions and identifies one or more of the diagnostic operating conditions for which the coil current is stable during a sample interval. A diagnostic operating condition is selected... | 03/30/2010 |
| 7688056 | Particle having mesopore loaded with biological substance, sensor including the same, and method for detecting specimen The present invention provides a porous particle loaded with a larger amount of biological substance. A rod-shaped particle according to the present invention includes a plurality of mesopores that crosses the major axis of the rod-shaped particle and that is loaded... | 03/30/2010 |
| 7667451 | Method for determining size of optical disc inserted into optical disc drive A method of determining a size of an optical disc inserted into an optical disc drive is disclosed. The method includes driving a turntable motor of the optical disc drive to rotate the optical disc at a predetermined rotation frequency for reading data stored on th... | 02/23/2010 |
| 7659707 | RF detector with crest factor measurement An RF detector configured to provide two outputs, one being a function of the true RMS power level of an RF input signal, and the other being a function of the instantaneous/peak power of the RF input signal, normalized to the average power level. The RF detector in... | 02/09/2010 |
| 7633284 | Method and apparatus for managing ultracapacitor energy storage systems for a power transmission system A method and apparatus for automatically monitoring and controlling various parameters of individual ultracapacitor cells in a series string of such cells. These parameters are monitored, and a replacement charge current is delivered to any cell which has lost charg... | 12/15/2009 |
| 7622907 | Device, system and method for a sensing electrical circuit The invention relates to a driven ground electrical circuit. A driven ground is a current-measuring ground termination to an electrical circuit with the current measured as a vector with amplification. The driven ground module may include an electric potential sourc... | 11/24/2009 |
