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.
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| Number | Title | Issue Date |
| 7397370 | Monitoring an environment using a RFID assembly An assembly for monitoring an environment includes a RFID tag and at least one sensor assembly. The sensor assembly is configured to sense information regarding the environment around the assembly and convert a sensed event into power to at least partially power ope... | 07/08/2008 |
| 7373133 | Recharging method and apparatus The present invention provides apparatus and an associated method for remotely energizing power storage devices. Energization may preferably be effected through the use of RF energy from a base station, ambient energy or ultra-wide band energy. The remote station pr... | 05/13/2008 |
| 7343506 | Automatic power management of a network powered device A system delivers power to a powered device through a local area network using a power sourcing equipment to process data of an interconnected network and to receive power from a first power source coupled to the power sourcing equipment. The system may include a po... | 03/11/2008 |
| 7337326 | Apparatus and method for effecting secure physical and commercial transactions in a contactless manner using biometric identity validation Provided is an apparatus and method for effecting secure transactions in a contactless manner using biometric identity validation. The apparatus may include, for example, a biometric sensor that is operable to detect biometric information associated with a user of t... | 02/26/2008 |
| 7327219 | Enhanced alarm system for monitoring of patients A monitoring system for use in a building, such as a hospital provides an audible and/or visual alarm. The monitoring system includes a control unit, with a plurality of medical condition monitoring units, such as ventilators, connected thereto. A plurality of speak... | 02/05/2008 |
| 7319404 | Non-invasive, low cost method and apparatus for the transmission, display and detection of internal computer status A method and apparatus for permitting diagnostics in a PC is described. Signals, imperceptible to a user, are transmitted through the LED used to indicate on/off power status. A small hand-held device may be used for detecting and interpreting the signals and to pro... | 01/15/2008 |
| 7250875 | Traffic signal transfer switch A transfer switch configured particularly for use with traffic signal controllers, to enable a traffic signal controller to be powered by a portable electrical generator, when utility line power is unavailable. A housing, configured to be mounted either on the surfa... | 07/31/2007 |
| 7233242 | Arrangement and method for setting a transmit power A transmit antenna (3) is supplied with energy by a power supply unit (2). An electrical value characteristic for the transmit power is compared to a comparison value and the length of a time interval is measured in which the characteristic value at le... | 06/19/2007 |
| 7228447 | Methods and apparatus for monitoring a power source A power source is configured to notify an external monitoring device of a condition such as a low power condition of the power source. The power source has an associated controller that monitors the condition of the power source. The power source receives a first th... | 06/05/2007 |
| 7224286 | Solar panel having visual indicator A solar panel incorporating a selectively actuable energy availability indicator arrangement. The arrangement includes a visual indicator, such as an LED, and a selectively actuable button. Actuation of the button completes a circuit to read the level of energy avai... | 05/29/2007 |
| 7220010 | Emergency light An emergency light for providing illumination during emergency conditions with a housing, a light source, and a drive arrangement for driving the light source between retracted and extended positions. Flanges, which can be removable, can project from the housing. Fa... | 05/22/2007 |
| 7212110 | Implantable device and system and method for wireless communication A wireless communication method and protocol, and wireless devices and systems for stimulation, are provided for communication between a wireless device and a charging device. During active wireless charging, communications (data transmission) from the wireless devi... | 05/01/2007 |
| 7212102 | Device integrated battery backup with power source monitoring and manipulation and public safety communications infrastructure incorporating the same A system for, and method of, providing device integrated battery backup with power source monitoring and manipulation and a public safety communications infrastructure incorporating the system or the method. In one embodiment, the system includes: (1) a power supply... | 05/01/2007 |
| 7130414 | Active mode line voltage regulator for ringing subscriber line interface circuit A voltage regulator circuit arrangement limits the DC voltage applied to a tip and ring amplifiers of a subscriber line interface circuit (SLIC), each of which has a first polarity input coupled to a first current flow path to which a DC input (battery) voltage is c... | 10/31/2006 |
| 7088073 | Inverter drive system Systems and methods are provided for dynamically changing configurations of multi-inverter drive systems. By changing configurations during operation, a multi-inverter system of the present invention can provide greater than half of full output power during failure ... | 08/08/2006 |
| 7086747 | Low-voltage lighting apparatus for satisfying after-hours lighting requirements, emergency lighting requirements, and low light requirements An energy-efficient lighting apparatus is disclosed. The lighting apparatus includes a ballast cover. The ballast cover includes a plurality of ballast cover holes. The lighting apparatus also includes a circuit board comprising a plurality of light-emitting diodes.... | 08/08/2006 |
| 7034677 | Non-specific sensor array detectors Portable and wearable chemical detector devices, such as badges, that are analyte-general, rather than analyte-specific, and which provide an optimal way to notify and protect personnel against known and unknown airborne chemical hazards. The devices are advantageou... | 04/25/2006 |
| 6970072 | Home automation module having externally powered communications port A home automation module having an externally powered communications port. The module includes an automation microprocessor for controlling the module, a communications port for enabling the module to draw power in limited quantities from an external source, a recei... | 11/29/2005 |
| 6956463 | Method and apparatus for providing both power and communication over two wires between multiple low voltage AC devices A system master unit is connected to a 24V AC power source. One or more slave units is connected to the master unit by a power/communication line. Bulk capacitance in the master and slave units stores power during a power source positive half cycle. When the source ... | 10/18/2005 |
| 6943463 | System and method of testing connectivity between a main power supply and a standby power supply Described are a system and method of testing connectivity between a main power supply and a standby power supply. The system includes a processor, a main power supply, and a standby power supply. The processor issues a command to the standby power supply to provide ... | 09/13/2005 |
| 6931287 | Remote console A position display system for displaying a position of a device, the system including a device, a position measuring device that measures a position of the device and a host readout device that is mounted at a first location. The host readout device receives a signa... | 08/16/2005 |
| 6917298 | Solar system alarm backup unit A backup electrical power unit for an alarm panel. The unit comprises a solar panel array which produces an array output DC voltage and a charging current for a battery through a first circuit at a first voltage level of the battery output voltage. This circuit disc... | 07/12/2005 |
| 6904373 | USB-controllable power supply A USB (universal serial bus) controllable power supply and method for supplying power to a circuit board device under test (DUT) via a controllable power supply. The power supply employs a USB interface to communicate with external devices, such as a host computer. ... | 06/07/2005 |
| 6882274 | Energy conserving satellite tracking tag An energy conserving tracking tag for receiving a radio frequency location data signal from a global positioning satellite and for communicating with a tracking system. The tag includes a receiver circuit for receiving the location data signal from the global positi... | 04/19/2005 |
| 6844823 | Method and apparatus for providing power to a visual messaging system for high-speed networks The present invention a method and apparatus for providing a visual messaging device for use with a high-speed network and an electrical supply system for the visual messaging device. The visual messaging device includes a network interface circuit that receives the... | 01/18/2005 |
| 6819226 | Systems and methods for energy storage in land-based telemetry applications The invention involves systems and methods of providing energy to land-based telemetry devices wherein the energy storage and power conditioning system is comprised of an input power supply, an energy storage element, an output supply and a control system. The input... | 11/16/2004 |
| 6813371 | On-vehicle camera calibration device An on-vehicle camera calibration device is provided and a method of calibrating an on-vehicle camera easily is carried out by using a calibration indicator other than a three dimensional one. The calibration indicator makes it possible to set camera parameters to fo... | 11/02/2004 |
| 6777829 | Rectifier utilizing a grounded antenna A rectifier generates a rectified output and a dc power output. The rectifier has an antenna element, a tuning capacitor, a coupling capacitor, first and second rectifying diodes, and a storage capacitor. The antenna element and the tuning capacitor are coupled in p... | 08/17/2004 |
| 6775545 | Wireless, ground link-based aircraft data communication system with roaming feature A flight information communication system has a plurality of RF direct sequence spread spectrum ground data links that link respective aircraft-resident subsystems, in each of which a copy of its flight performance data is stored, with airport-located subsystems. Th... | 08/10/2004 |
| 6753762 | Signalling beacon A signalling beacon comprised of a lighting indicator which is mounted in a body enabling the stacking thereof. An energy accumulation device, at least one photovoltaic cell and an electronic device of the beacon are in the beacon. The electronic device has a radio ... | 06/22/2004 |
| 6605900 | Rechargeable emergency lamp tube A rechargeable emergency lamp tube includes a lamp tube holder, the lamp tube holder having a base adapted to obtain AC power supply from an electric socket and a socket adapted to hold a tube for emitting light, a rechargeable battery and a control circu... | 08/12/2003 |
| 6496103 | Device, system and method for secure A device, system and method for providing power in a secure manner to a network device connected to a network, such as an Ethernet network for example. The device is optionally implemented as an intelligent power supply, which is able to interrogate the n... | 12/17/2002 |
| 6466126 | Portable data device efficiently utilizing its available power and method thereof A portable data device (400) having a power controller (430), a clock generator (428) and a digital circuit (432). The power controller (430) has an output signal. The output signal is representative of available power. The clock generator (428) is couple... | 10/15/2002 |
| 6437685 | Cordless power transmission system, power transmission terminal and electrical appliance A cordless power transmission system can transmit and receive power stably without malfunctions. A power transmission terminal transmits default power to an electrical appliance by diffractive electromagnetic waves. The electrical appliance transmits its ... | 08/20/2002 |
| 6377172 | Specific location public alert receiver Disclosed is a specific location public alert devices that require no specialized installation and may be plugged into any common household electrical outlet which provides power to the device so no switch is required to access power. The device requires ... | 04/23/2002 |
| 6329907 | Emergency power system for traffic control signals An emergency power station for traffic signal controllers having a general utility power supply, the emergency power station having a small footprint cabinet containing a fuel supply in a lowermost compartment, an engine and an electrical generator in a m... | 12/11/2001 |
| 6313549 | Emergency evacuation system Embodiments of an emergency evacuation system are disclosed which may be installed within the knockouts of a panel of a modular work space system. During normal operation a battery power source within the emergency evacuation system is charged by normal A... | 11/06/2001 |
| 6198384 | System power supply control for interface circuit An interface circuit including an interface controller operated by at least a system power supply or an external power supply. A switch is connected between an interface controller and a system power circuit for conducting system power. The interface cont... | 03/06/2001 |
| 6094130 | Emergency power station for traffic control signals An emergency power station for traffic signal controllers having a general utility power supply, the emergency power station having a small footprint cabinet containing a fuel supply in a lowermost compartment, an engine and an electrical generator in a m... | 07/25/2000 |
| 6011465 | Backup arrangement for alarm system A backup arrangement for alarm system includes an electronic switch circuit, a DC power source, a build-in electronic Hi-sounder, and a chargeable resistor. The electronic switch circuit, which is a IC control system, has a power input connected to an aux... | 01/04/2000 |