Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 8077049 | Method and apparatus for communicating power distribution event and location A system, device, and method of providing information for a power distribution system is provided. In one embodiment, a method of using a device that receives power from the low voltage power of the power distribution system and experiences a power loss during a loc... | 12/13/2011 |
| 8018349 | Detecting an inline power shutoff failure Power control circuitry (i) applies an inline power signal from a power source to first and second terminals when a control signal delivered to the power control circuitry has an inline-power-ON value and (ii) shuts off the inline power signal from the power source ... | 09/13/2011 |
| 7965195 | System, device and method for providing power outage and restoration notification A system, computer program product and method to provide information related to a power distribution system based on information provided by a plurality of network elements electrically connected to a plurality of power lines of the power distribution system at a pl... | 06/21/2011 |
| 7944365 | Systems, methods, and apparatuses for stray voltage detection Systems, methods, and apparatuses may be provided for stray voltage detection. The systems, methods and apparatuses may include providing a first antenna at a first location relative to a monitored equipment or structure, where the first antenna may be operative to ... | 05/17/2011 |
| 7911353 | Verifying speaker operation during alarm generation The patent discloses a method of verifying that a dialysis machine audio alarm has been sounded. The method senses a waveform of electric power, such as a waveform of the current or voltage that drives a speaker. When the speaker produces sound, power consumption ch... | 03/22/2011 |
| 7843358 | Power failure alarm A power failure alarm for use in sounding a warning in the occasion of a power failure, with built in electrical connectors, and a temporary source of light. The device is housed in a molded plastic enclosure in a rectangular shape and includes an emergency light, n... | 11/30/2010 |
| 7746243 | Pump failure alarm device A pump failure alarm device includes two digital-analog converting circuits (100, 110), a voltage sampling circuit (120), a controlling circuit (130), an I/O controller (U11), and an alarm circuit (140). The digital-analog converti... | 06/29/2010 |
| 7589639 | Electrical control system An electrical control system. ... | 09/15/2009 |
| 7551098 | Point of sale terminal having pulsed current tamper control sensing A point of sale terminal includes a microcontroller integrated circuit. In one aspect, a regulator within the IC receives power from a supply voltage terminal and/or a battery terminal. If the regulator does not receive adequate power from either terminal, then ener... | 06/23/2009 |
| 7468674 | Voltage sensing hand tool A hand tool and an accessory which provide an alarm signal to a user as the tool or accessory approaches a live electrical wire are disclosed. The hand tool or accessory include a non-contact voltage sensing circuit. As the tool or accessory approaches a live electr... | 12/23/2008 |
| 7446666 | Electrical control system A node is provided for operation in a control system comprising one or more master devices and one or more communications pathways operative to provide control signals from one or more of the master devices to the node. The node includes an electrical device configu... | 11/04/2008 |
| 7443310 | Remote sensor network system with redundancy A multi-sensor network having a plurality of receivers and sensors connected to a common communication line is provided. A controller will activate one of the plurality of receivers, thereby allowing one of the plurality of sensors to transmit data to the communicat... | 10/28/2008 |
| 7439870 | Apparatus for testing cables An apparatus is provided for testing a cable having a plurality of conductors. The apparatus includes a power supply terminal, a grounded test probe, an interface having a plurality of pins thereon, a plurality of indicators, and a plurality of control circuits, eac... | 10/21/2008 |
| 7436314 | Monitor and circuit arrangement for voltage regulator A circuit arrangement having a voltage regulator, which is designed to generate a regulated operating voltage, and a voltage monitoring unit, which is designed to monitor the regulated operating voltage for deviations from desired values. The voltage monitoring unit... | 10/14/2008 |
| 7423546 | Device, system and method for monitoring a household electric appliance A device is described, for monitoring a household electric user (COT, LB, AU), in particular a household appliance, presenting an electric load, where said monitoring device (AI) is connected between a source of electric energy (PDC) and said electric load, said mon... | 09/09/2008 |
| 7423545 | Failed filter arrest indicator and method for use in multiple arrester location The present invention is a technique for locating and identifying a failed filter/arrester in an underground conveyance such as a fiber optic cable. A sensor is installed in the filter/arrester housing to sense grounding of a cable locating frequency. The sensor wil... | 09/09/2008 |
| 7423539 | RFID tags combining signals received from multiple RF ports Circuits, devices and methods for use in RFID tags include receiving multiple RF signals from multiple ports. The signals are added after some processing, to produce a single combined signal. Additional components process the single combined signal by itself. ... | 09/09/2008 |
| 7422293 | System and a method for dissipating voltage in an electrical circuit of a vehicle A system and a method for dissipating voltage in an electrical circuit of a vehicle. The system includes a power source and an inverter. The power source has a voltage source and a contactor. The inverter is electrically coupled to the power source and includes a de... | 09/09/2008 |
| 7391335 | Aerospace light-emitting diode (LED)-based lights life and operation monitor compensator A system (10) and method for monitoring the operational life and/or performance of one or more light-emitting diodes (LEDs) (20) based on sensed parameters are disclosed. The remaining life of each LED may be predicted by counting the clock cycles duri... | 06/24/2008 |
| 7382245 | Method and apparatus for indicating a power condition at a notification appliance A notification appliance and an alarm system are provided. The notification appliance comprises an alarm indicator and a control module, which is configured to perform notification applications by turning on/off the alarm indicator. The control module receives at le... | 06/03/2008 |
| 7369969 | Holding device for a sensor signal, method for forwarding a sensor signal and computer program A holding device for a sensor signal comprises a signal input receiving a sensor signal, a signal output and a storage device coupled to the signal input and output. The storage device is designed to store a signal value in a first state and to update it based on th... | 05/06/2008 |
| 7353124 | Device and method for voltage regulator with low standby current An apparatus and method for providing a reference voltage for regulating voltage levels. The apparatus includes a first voltage generation system configured to receive a first control signal and output a calibration voltage, a voltage adjustment system configured to... | 04/01/2008 |
| 7336188 | System and method for ensuring location of an individual within a designated area A system and method for ensuring that a monitored individual is located within a designated area is provided. The system contains a monitoring band having a transmitter capable of transmitting a signal. A transceiver interface unit is also located within the system,... | 02/26/2008 |
| 7329995 | Serial lamp set having security warning functions A serial lamp set having security warning functions comprising at least one serial lamp set unit composed of a plurality of light emitting elements, insulated electric wires, and power source connector; at least one IC set being connected in the serial lamp set for ... | 02/12/2008 |
| 7330126 | Power supply controller A power supply controller is used in a device including at least one component and at least one control board for controlling an operation of each component, and includes: a power supply section; and a power supply board for independently supplying a power supply vo... | 02/12/2008 |
| 7324004 | Cargo smoke detector and related method for reducing false detects A method for reducing false detects may include emitting an infrared light beam from a primary emitter to a primary monitor detector, measuring a first voltage value using a primary receive detector and setting a primary smoke alarm flag corresponding to a primary c... | 01/29/2008 |
| 7310049 | Status indicator A status indicator indicates an operating state, including an electrical malfunction, of an electrical load that is located and controlled from locations remote from a monitoring location. ... | 12/18/2007 |
| 7298283 | Device for detecting line-disconnection in stepping motor driver A device for detecting disconnection for use in a stepping motor driver is provided having a driver circuit 3 which comprises a pair of windings 21, 22 wound in a bifilar turn arrangement; a pair of MOSFETs 1, 2 connected to the other end of eac... | 11/20/2007 |
| 7295130 | Voltage sensing hand tool A hand tool which provides an alarm signal to a user as the tool approaches a live electrical wire is disclosed. The hand tool comprises a tool head and coupled to a handle. A non-contact voltage sensing circuit is provided in the handle of the tool. As the tool app... | 11/13/2007 |
| 7286060 | Indicators for vacuum tube replacement devices A vacuum tube replacement device includes an indicator. The indicator can be arranged to provide audible and/or visual indication of system performance, function, status, or any other desired indication. The vacuum tube replacement device is pin-for-pin compatible w... | 10/23/2007 |
| 7286059 | Talking tool holder A talking tool holder provides an audio message in response to a user selection that indicates the size of the tool the user has selected. The talking tool holder includes a housing with multiple uniquely-sized tool-receiving locations, with a corresponding sensor f... | 10/23/2007 |
| 7269764 | Monitoring VRM-induced memory errors A method and system for improving Field Replacement Unit (FRU) isolation in memory sub-systems by monitoring Voltage Regulator Module (VRM) induced memory errors. A comparator compares the output voltage coming from the VRM to memory. If the comparator detects a VRM... | 09/11/2007 |
| 7265679 | Apparatus and method for indicating onset of high-voltage at an output locus of a signal converter device An apparatus for indicating detection of an onset of a high-voltage condition at an output locus of a signal converter device, the signal converter device including a switching network for switchingly controlling a potential at a circuit node coupled with the output... | 09/04/2007 |
| 7245101 | System and method for monitoring and control The invention provides for the monitoring and control of a system, such as a linear electro-mechanical transducer, e.g. a linear electric motor, particularly when driven in a reciprocating manner. A dynamic model of the linear motor and its load is used to calculate... | 07/17/2007 |
| 7245226 | Integrated microprocessor controlled alarm Alarms are often required on various vehicles and equipment such as fork lifts, dump trucks, bulldozers, etc. An alarm is disclosed controlled by a microprocessor, which is an integral part of the basic circuit. The alarm has a flat diaphragm, and a novel acoustic l... | 07/17/2007 |
| 7227372 | Voltage monitoring apparatus in a semiconductor probe station An Electrical Die Sorting (EDS) process system for testing semiconductor chips comprises a probe station, a power supply unit configured in the probe station, and a voltage apparatus for measuring voltages of the power supply. The voltage apparatus comprises a measu... | 06/05/2007 |
| 7224287 | Method for determining the switching state of a contact and evaluation circuit corresponding thereto An input voltage contacted at the input of a contact can be through-connected to an output of the contact or switched off via a movable contactor. In order to determine the switching state of the contact, any drop in the contact voltage between the input and the out... | 05/29/2007 |
| 7216051 | Power short circuit testing of an electronics assembly employing pre-characterized power off resistance of an electronic component thereof from a power boundary A technique for testing an electronics assembly for a power short circuit is provided. The technique includes pre-characterizing power off resistance of an electronic component(s) of a first packaging level from at least one power boundary of the electronic componen... | 05/08/2007 |
| 7205756 | Unbalanced current detection An unbalanced current detection circuit determines when a multi-phase, normally-balanced load is unbalanced. The detection circuit of the present invention includes a plurality of current-squaring circuits, each squaring a sensed current of one of the phases. A summ... | 04/17/2007 |
| 7191735 | Electric animal deterrent for contact with underlying ground system The present invention provides a high voltage pulse generator used for deterring animals where the high voltage pulses are delivered to the animal through an electrical conductor that lays directly on the ground and is not insulated from the underlying ground system... | 03/20/2007 |
