Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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 |
| 7403018 | Cable tester A cable tester that tests cable and that determines a cable status includes a pretest module that senses activity on pairs of the cable and that selectively enables testing based on the sensed activity. A test module is enabled by the pretest module, transmits a tes... | 07/22/2008 |
| 7400129 | Measurement of distortion in an amplifier Parametric measurement of first- and second-generation telecommunications equipment has been relatively straightforward. The evolution to more complex transmission schemes such as those proposed for third-generation (3G) telecommunications devices can employ the sub... | 07/15/2008 |
| 7397233 | Voltage measuring device A device for measuring alternating voltage in a conductor under test using a first set of capacitive voltage sensors 32a-f mounted on an electrically insulating support member. The sensors are disposed on the support member at spaced intervals a... | 07/08/2008 |
| 7394260 | Tuning a test trace configured for capacitive coupling to signal traces A method of tuning a test trace that is capacitively coupled to a number of signal traces. A method for determining a configuration of a device comprising signal traces and a capacitively coupled test trace may include selecting a test frequency of a test signal to ... | 07/01/2008 |
| 7385383 | Methods and systems for determining efficacy of stress protection circuitry Methods and systems are provided for determining efficacy of stress protection circuitry. The methods and systems employ a ring oscillator that models at least one parameter of a functional circuit to be protected by the stress protection circuit. A stress signal is... | 06/10/2008 |
| 7378853 | System and method for detecting cable faults for high-speed transmission link A system and method of detecting a fault in a transmission link are provided which includes providing a selectable reference level according to one of a direct current (DC) mode threshold and an alternating current (AC) mode threshold, wherein the DC mode threshold ... | 05/27/2008 |
| 7375532 | Cable tester A physical layer device comprises a first port adapted to communicate with one end of a cable. A second port is adapted to communicate with an opposite end of a cable. A cable tester communicates with the first and second ports and selectively tests the cable to det... | 05/20/2008 |
| 7372280 | Method and system for transmitting an information signal over a power cable The invention relates to a method for inputting an information signal into a power cable which is connected to a voltage supply and which includes at least one or more conductors, a dielectric provided around the conductors and a conductive earth sheath arranged who... | 05/13/2008 |
| 7365548 | System and method for measuring on-chip supply noise A method and system for measuring noise of an on-chip power supply. In an embodiment, the system comprises a delay line that receives as an input a signal such as a square wave. The delay line may comprise a series of inverters connected to the power supply. The out... | 04/29/2008 |
| 7365527 | System and method for extending the range of a frequency measuring device A range of a frequency measuring device having limited range is extended by pre-processing an input signal. The input signal is divided into a plurality of channels. In each channel, the input signal is divided into sub-bands. A frequency of the input signal is dete... | 04/29/2008 |
| 7362105 | Integrated microstructure sensor element for detecting thermodynamic variables of a fluid An integrated microstructure sensor element is proposed for detecting thermodynamic measured variables of a fluid. To that end, a supporting body, particularly a board or a wafer having at least one microstructured heating element in contact with the fluid during op... | 04/22/2008 |
| 7358745 | Cable tester A physical layer device comprises a first transceiver that selectively communicates with a cable medium. A detector detects a power over Ethernet (POE) device. A switching device selectively provides power from a power supply over the cable medium when the detector ... | 04/15/2008 |
| 7358741 | Electrostatic detection apparatus and method, and coordinate detection program A shielding member is provided as an electrostatic protection device in extension lines that extend from a sensing area to switching devices via extension areas correspondingly. As a result, even if a body to be detected such as a finger contacts the extension area,... | 04/15/2008 |
| 7355378 | Source synchronous sampling There is provided a method of source synchronous sampling, where a first clock signal of a first unit is synchronized to a second signal received from a second unit. The method includes determining a timing control signal on the base of the first clock signal and th... | 04/08/2008 |
| 7355415 | Method for on-line monitoring of condition of non-aqueous fluids A method for determining a condition of a highly resistive fluid in transportation and industrial equipment. The method is suitable for determining the condition of a non-aqueous fluid including applying a high-frequency voltage signal between electrodes immersed in... | 04/08/2008 |
| 7356287 | Ink developer foil In one implementation, an apparatus includes a foil that is adjacent to a portion of an ink developer electrode. The foil at least partially limits an accumulation of splashed ink along one or more portions of the ink developer electrode. ... | 04/08/2008 |
| 7336085 | Current sensing circuit A circuit arrangement for detecting a load current through a load includes a main transistor, a sensing transistor through which a load current flows that is a measure of the load current flowing through the main transistor. In addition, a resistance is connected in... | 02/26/2008 |
| 7323878 | Ground testing method and apparatus The present invention is directed to a ground-current isolating circuit for providing a low voltage barrier between a service neutral conductor and an associated grounding system. The voltage barrier circuit comprises a first current unidirectional element and a sec... | 01/29/2008 |
| 7315172 | Method for measuring spectral noise densities beyond instrument capability with deterministic confidence levels A mechanism for measuring noise densities below the noise floor of a measuring instrument. The measuring instrument may first acquire a fully-averaged reference spectral noise density trace and estimate corresponding reference statistical parameters. Based on the re... | 01/01/2008 |
| 7312613 | Method for network diagnostic A method for network diagnosis between a source end and a destination end coupled by a transmission line is provided. The method includes the following steps. First, a first test signal is transmitted from the transmitter to the receiver when the hybrid is set to a ... | 12/25/2007 |
| 7313340 | Paper control of document processing A method and apparatus for using a sheet of paper to control document processing is described. In one embodiment, the method includes scanning a first sheet of paper and a first document, identifying one or more processing operations identified on the first sheet of... | 12/25/2007 |
| 7304483 | One terminal capacitor interface circuit A differential capacitor one terminal capacitor interface circuit for sensing the capacitance of first and second capacitors includes a differential integrating amplifier having first and second summing nodes and an input common mode voltage; and a switching circuit... | 12/04/2007 |
| 7301352 | High sensitivity single or multi sensor interface circuit with constant voltage operation A sensor interface circuit is provided to interface many sensors simultaneously in a simple circuit arrangement consisting of two parts. Sensors in both parts operate under identical constant voltage. The circuit provides higher front end sensitivity than the Wheats... | 11/27/2007 |
| 7298993 | Imaging methods, image engines, and photoconductor charging systems Imaging methods, image engines, and photoconductor charging systems are described. According to one embodiment, an imaging method includes providing a charge device configured to provide an electrical charge to a surface of an imaging member which is usable for imag... | 11/20/2007 |
| 7298148 | Relay controller A relay controller for connecting a power source includes at least one relay having at least two contacts. The relay controller includes a processing device operable to selectively switch the relay contacts, and a feedback circuit adapted to identify an actual state... | 11/20/2007 |
| 7292049 | System and method for detecting the dielectric constant of conductive material An improved system and method for providing a dielectric monitor which allows the measurement of the dielectric constant of a conductive material. The capability to accurately and efficiently measure the dielectric constant in soil allows the moisture content of the... | 11/06/2007 |
| 7292048 | Method and apparatus for measuring a dielectric response of an electrical insulating system Method and device for measuring a dielectric response of an electrical insulating system, wherein a first measurement result is determined by a frequency domain method and a second measurement result is determined by a time domain method, whereupon the first measure... | 11/06/2007 |
| 7292021 | Anomaly detector for vibratory angular rate sensor In an anomaly detector that detects an abnormal condition of an oscillation signal of a circuit such as a vibratory sensing circuit, the oscillation signal, having AC and DC components, is converted to a pair of first and second signals of either opposite-polarity D... | 11/06/2007 |
| 7288945 | Systems and methods for detection of dielectric change in material and structure Methods and systems are described for efficiently detecting an object. The system includes at least one electrode for measuring a displacement current. The at least one electrode is coupled to a floating ground configuration provided by an op-amp, where the invertin... | 10/30/2007 |
| 7279904 | Input device An input device is provided. The input device includes an input electrostatic sensor having an input electrode. A noise detection electrostatic sensor has a noise detection electrode disposed on a periphery of the input electrostatic sensor. A control unit is operab... | 10/09/2007 |
| 7279905 | Method and an apparatus for supervising the operation of current transformers A method of supervising the operation of a plurality of current transformers arranged in respective groups and connected to a protection relay forming part of a three-phase electrical power system includes determining a current ratio at an output of each group of cu... | 10/09/2007 |
| 7276913 | Cable tester A cable tester tests cable to determine a cable status. A mode selector selects one of a first operating mode and a second operating mode. A pretest module senses activity on the cable and selectively enables testing based on the sensed activity when in the first op... | 10/02/2007 |
| 7274887 | System and method for setup of toner concentration target for a toner concentration sensor A method by which the target of a toner concentration (TC) sensor can be set up based on the equivalent developability concept without using an expensive patch generator. First, use a black toner area coverage (BTAC) sensor to measure the relative reflectance (RR) o... | 09/25/2007 |
| 7271594 | System and method for power ratio determination with common mode suppression through electric field differencing A system for processing signals includes a receiver assembly for receiving a signal. The signal has a sample component with a sample electric field and a sample polarization, and has a reference component with a reference electric field and a reference polarization.... | 09/18/2007 |
| 7268558 | Circuit breaker tester including a pulse width modulation circuit A tester for testing a circuit breaker includes a plurality of load elements each having a nominal fixed impedance and an electronic switch associated with each load element. The electronic switch, when turned on, electrically connects a corresponding load element i... | 09/11/2007 |
| 7268565 | System and method for detecting rail break/vehicle A system for detecting a rail break or train occupancy includes a current source adapted to deliver a current to an isolated block of a rail track. A voltage sensor is coupled to the isolated block and configured to detect voltage across the isolated block. A shunt ... | 09/11/2007 |
| 7262604 | Method of testing documents provided with optico-diffractively effective markings The invention relates to a method of examining the authenticity of a document provided with an optico-diffractively effective element or hologram by subjecting the hologram to capacitive coupling of a voltage and deriving a signal representative of the voltage for c... | 08/28/2007 |
| 7253637 | Arc fault circuit interrupter system In order to determine whether arcing is present in an electrical circuit, a sensor signal corresponding to current in said electrical circuit is processed. The sensor signal is filtered to determine the presence of noise in a predetermined frequency range and produc... | 08/07/2007 |
| 7253639 | Insulation resistance deterioration detection method and insulation resistance deterioration detection device for motor, and motor driver The drive of the motor is stopped, the electromagnetic switch contacts are switched OFF, and thereafter the first and second contact points are closed to form a closed circuit of the smoothing capacitor, second contact point, first and second resistors, motor coil, ... | 08/07/2007 |
| 7253642 | Method for sensing an electric field A method for sensing an electric field includes processing digitized electric field signals, e.g., from an electric field sensing probe. The processing may include performing a Fast Fourier Transform of the digitized electric field signals to provide an indication o... | 08/07/2007 |
