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| Number | Title | Issue Date |
| 8054192 | Activity pattern based battery charging alerts for mobile devices A method for providing activity pattern based battery charging alerts for mobile devices, the method includes: monitoring usage patterns of a mobile device; determining periods of activity and inactivity for the mobile device's usage; creating an activity log detail... | 11/08/2011 |
| 7508315 | Signaling device and method of alerting a work machine operator to a predetermined condition using same A signaling device includes an electrical circuit which discharges an electrical energy storage device through an electrically powered alert mechanism via a biased open transition switch upon disruption of electrical power in an electrical system of a work machine. ... | 03/24/2009 |
| 7408475 | Power supply monitoring device In a power supply monitoring device, a power supply voltage monitoring portion always monitors a power supply voltage supplied to a monitored circuit and outputs a voltage reduction signal when detecting that the power supply voltage is reduced below a predetermined... | 08/05/2008 |
| 7337357 | Apparatus, system, and method for limiting failures in redundant signals An apparatus, system, and method are disclosed for limiting failures in redundant signals. A coordination module generates a power status signal for each of a plurality of power modules. An input module receives a source signal. A signal generation module generates ... | 02/26/2008 |
| 7336192 | System and device for monitoring at least one household electric user, in particular a household appliance A system that monitors at least a household electric user, in particular a household appliance, includes a monitoring device that is connected between a source of electric energy and the electric user, the monitoring device including a metering means for detecting o... | 02/26/2008 |
| 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 |
| 7317402 | Alarm in a device for dispensing volatile anesthetics An alarm is associated with a device for dispensing volatile anesthetics. The alarm and device is designed such that an alarm is triggered whenever the operating voltage is interrupted and an assembly unit that determines the dispensing of at least one anesthetic is... | 01/08/2008 |
| 7304584 | Wireless input device with low voltage mandatory alert function The present invention relates to a wireless input device with a low voltage mandatory alert function, including: a battery for supplying power for the wireless input device; a microcontroller for handling the input signals of the wireless input device. The present i... | 12/04/2007 |
| 7282892 | Battery component replacement A battery component replacement circuit for use in a model railroad application is disclosed. The circuit according to an embodiment of the invention has a series of capacitors connected between positive and negative terminals which supply power for charging the cap... | 10/16/2007 |
| 7265952 | Two-terminal protecting circuit An integrated circuit provides a load with back-flow and open-circuit protection and includes a load, a trigger circuit, and a shunt circuit. The integrated circuit provides large-size LED displays having series LED connection with back-flow and open-circuit protect... | 09/04/2007 |
| 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 |
| 7259665 | Battery backed service indicator aids for field maintenance A self-contained backup power source such as a battery is provided for components within an electrically powered device such as a storage controller, photocopier or the like, to maintain diagnostic status data and to power a service indicator aid, or diagnostic indi... | 08/21/2007 |
| 7237134 | Backup power module for industrial control and monitoring network A technique is provided for applying secondary or backup power to a networked device in the event of a loss or malfunction of network power. In a control and monitoring network. Various devices may receive both power and data signals from a network cable. In the eve... | 06/26/2007 |
| 7196495 | Dual battery and monitor arrangement A redundant battery power supply with combined battery charge indication which incorporates a main cell, conductively coupled to the supply bus which powers the load when activated, and a predictive cell, coupled to the bus by an optional diode which becomes forward... | 03/27/2007 |
| 7191351 | Method and network for providing backup power to networked devices A network is configured to apply power and data signals to networked devices for operation of the devices. A backup power supply module is coupled to the source of network power and to a secondary power source. The secondary power source may have an adjustable volta... | 03/13/2007 |
| 7142404 | System and method for domain power monitoring and notification A domain power notification system detects when a power domain experiences a power condition, such as lost power and low-voltage power, and communicates that information to the domains that communicate with the problem domain. As a result, the effected domains stop ... | 11/28/2006 |
| 7122988 | Rotation drive device and rotation drive method This rotation driving apparatus includes a torque generating circuit 72 for generating a torque of a servo motor 30 with voltage supply from a power source 71 and a motor control circuit 73 for controlling rotation of the motor. In the to... | 10/17/2006 |
| 7110226 | Regulator protection circuit and power supply apparatus incorporating it A power supply apparatus has a regulator and a regulator protection circuit. On detecting an abnormality, an abnormality detection circuit in the regulator protection circuit turns the regulator off. Based on the output of the abnormality detection circuit, an abnor... | 09/19/2006 |
| 7098799 | Unit for sensing physical quantity A sensor unit sensing a physical quantity comprises a first voltage evaluation circuit, a second voltage evaluation circuit, an alarm signal output circuit, and a sensor output circuit. The first voltage evaluation circuit evaluates a power voltage by comparing it w... | 08/29/2006 |
| 7064658 | Integrated vehicle power distribution and gateway system A universal vehicle electric power distribution module employs reconfigurable inputs and outputs enabling use of the same hardware across vehicle lines. The module is scalable for ease of expansion and is capable of handling both low current and high current load ma... | 06/20/2006 |
| 7034707 | System and device for monitoring at least one household electric user, in particular a household appliance A system that monitors at least a household electric user (HA1–HA4), in particular a household appliance, includes a monitoring device (MSA) that is connected between a source of electric energy (OUT) and the electric user, the monitoring device (MSA... | 04/25/2006 |
| 7023352 | Voltage-detecting method and related circuits A voltage-detecting circuit includes a CPU, a comparator, a first resistor, a second resistor, and at least a power level segment detector connected in parallel with the first resistor, the power level segment detector having a third resistor and a first switch seri... | 04/04/2006 |
| 6985084 | Visual indication equipment operation An electrically operated equipment with a sealed enclosure containing circuitry with an exterior visual indicator to show a state of operation of the equipment. The visual indicator is illuminated by a magnetic flux sensor also exterior to the equipment, the sensor ... | 01/10/2006 |
| 6979504 | Fuel cell system automatic power switching method and apparatus A fuel cell system includes a fuel cell stack, a battery, and a control system. A power circuit couples the fuel cell system selectively between the fuel cell stack and the battery. The power circuit includes a battery supply switch responsive to a voltage across th... | 12/27/2005 |
| 6957278 | Reference -switch hysteresis for comparator applications The present invention concerns an apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate a reference output voltage in response to a plurality of reference voltages. The second circuit may be configured to generate... | 10/18/2005 |
| 6953630 | Fuel cell anomaly detection method and apparatus A respective bipolar junction transistor is coupled across pairs of fuel cells in a fuel cell stack to monitor the voltage across each fuel cell pairs for a drop in voltage below a threshold voltage. A respective optoisolator coupled to each of the transistors produ... | 10/11/2005 |
| 6943691 | Tamper indicator for a smoke detector The present invention is a tamper indicating kit for use with a smoke detector having a base plate for mounting to a mounting surface such as a ceiling or wall, and the smoke detector also including an openable cover connected to the base plate; the tamper indicatin... | 09/13/2005 |
| 6940413 | Method and apparatus for monitoring operation of electrical household appliances Discloses is a method and a corresponding apparatus for monitoring operation of electrical household appliances (such as a freezer). The method includes checking the temperature inside the freezer on a periodical basis and comparing with a de-frosting temperature. A... | 09/06/2005 |
| 6940416 | Low voltage testing and illuminating device This invention relates to a limited range low voltage testing, regulating, and indicating device comprising a detector and low voltage measurer of magnitude in a switch-regulated power supply circuit wherein indicator LEDs are operated directly from a power supply w... | 09/06/2005 |
| 6933728 | Method and apparatus for measuring voltage of battery module of electric vehicle While measuring a value of a battery module voltage of an electric vehicle using a differential amplifier circuit having at least one resistor, an actual effective gain of the differential amplifier circuit depending on the resistivity of the resistor is measured an... | 08/23/2005 |
| 6922644 | System and method of detecting fire causing card shorts Method and apparatus for monitoring and controlling electrical current delivered to a computer subsystem are provided. One embodiment provides a method for detecting a short circuit in a computer subsystem, comprising: obtaining a measured current which is supplied ... | 07/26/2005 |
| 6909372 | Power monitoring unit, control method therefor, and exposure apparatus A power monitoring apparatus monitors the voltage fluctuation range of an AC power supply and the duration of voltage fluctuations within the voltage fluctuation range. The power monitoring apparatus looks up a power failure rank table for determining the power fail... | 06/21/2005 |
| 6897784 | Water monitoring system and water monitoring method for high voltage cables A water monitoring system and a water monitoring method for a high voltage cable including a conductor and a screen surrounding the conductor. At least a first water sensing wire extends in the screen between the cable beginning and the cable end and at least a seco... | 05/24/2005 |
| 6853295 | Vehicular control unit with self shut-off function and abnormality detection function In a vehicular control unit, a main power supply voltage detecting section to detect a voltage value of a main power supply is provided and, an abnormality determining section determines an abnormality occurs in the main power supply voltage detecting section when t... | 02/08/2005 |
| 6791463 | On-board control system and method for vehicles In an on-board control system, a body ECU executes various control operations in response to the supply of power voltage from a battery. There is connected on the power line of the battery a voltage holding circuit which is formed of a capacitor so that the variatio... | 09/14/2004 |
| 6781514 | Electronic shelf label system If an electronic shelf label server receives a replacement request from each of the electronic shelf labels, a date of a corresponding electronic shelf label number is read out from a database and an object range is determined based on this date. Then, whether or no... | 08/24/2004 |
| 6737978 | Voltage testing apparatus for electrical railways A voltage testing apparatus for electrical railways is disclosed consisting in one embodiment of a transportable pole-mounted electrical power indicator, electrically conducting wire-engaging means such as a hook attached to one end of the pole and electrically conn... | 05/18/2004 |
| 6650246 | Method and apparatus for improving the safety of inflatable attractions and other inflatable devices A system and method of using a blower device to maintain an inflatable carnival attraction at a level of inflation safe for using the inflatable attraction, wherein the blower device operates on electrical energy received from an external source, monitori... | 11/18/2003 |
| 6614356 | Digital meter for use of current and voltage The present invention relates to a digital meter for use of the current and voltage, including a front end signal processing device, a press button input device, a central processing unit (CPU), an LCD controller, an LCD, and an alarm device. When the sig... | 09/02/2003 |
| 6518880 | Physical-quantity detection sensor A physical-quantity detection sensor includes a sensor portion (10) for generating and outputting a voltage depending on a physical quantity. A signal processing circuit (4) operates for processing the voltage outputted from the sensor portion (10) to gen... | 02/11/2003 |
