Quotables
"This is the patent age of new inventions for killing bodies, and for saving souls. All propagated with the best intentions."
Lord Byron ;
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 |
| 8097982 | System and method for pre-detection in a power over ethernet system A system and method for pre-detection in a power over Ethernet (PoE) system. A power sourcing equipment (PSE) is designed to measure a port voltage upon application of a small current source. A microcontroller controls the current source based on a comparison of the... | 01/17/2012 |
| 8080902 | Electrical generation protection system Distributed generation systems incorporate a distribution network and typically a number of distributed generators. It is possible that power islands may be created in substations incorporating a generator when that substation and generator is isolated from the dist... | 12/20/2011 |
| 8063514 | Power supply selection/detection circuit A power supply selection/detection circuit to select one main power supply from a plurality of external power supplies includes a resistance element with one end connected to an external power supply and another end connected to the main power supply, a first voltag... | 11/22/2011 |
| 7989984 | Underwater substation An underwater substation pod (USP) adapted to collect and process the electrical outputs of an array of offshore power generating devices includes a voltage boosting transformer for combining and transmitting with increased efficiency an amplified version of the col... | 08/02/2011 |
| 7960866 | Pulse generation circuit and UWB communication device A pulse generation circuit for outputting a pulse with a predetermined waveform to an output terminal in response to a start signal includes a circuit adapted to generate a plurality of signals {Di|i denotes an integer in a predetermined range}, which has predetermi... | 06/14/2011 |
| 7906871 | Apparatus, system, and method for reducing power consumption on devices with multiple power supplies A load module determines that a load of an electronic device is operating at a power level below a predetermined power threshold. The electronic device is configured to receive power simultaneously from two or more redundant power supplies. Each redundant power supp... | 03/15/2011 |
| 7898112 | Apparatuses and methods to connect power sources to an electric power system Apparatuses and methods to firewall distributed energy sources. In one aspect, an apparatus includes: a first connector configured to interface with a distributed energy source; a second connector configured to interface with a connection point of an electric power ... | 03/01/2011 |
| 7868483 | Power management systems with current sensors A power management system includes a power management unit (PMU) and a current sensor. The PMU is operable for controlling a first power source and a second power source. The second power source is operable for being charged by the first power source via a charging ... | 01/11/2011 |
| 7855474 | System and method for pre-detection in a power over ethernet system A system and method for pre-detection in a power over Ethernet (PoE) system. A power sourcing equipment (PSE) is designed to measure a port voltage upon application of a small current source. A microcontroller controls the current source based on a comparison of the... | 12/21/2010 |
| 7834481 | Threshold detection in back-up power supply systems A threshold detection circuit includes, in one embodiment, a comparator having a first input connection for receiving a backup voltage from a backup power source, a second input connection for receiving a primary voltage from a primary power source, and an output co... | 11/16/2010 |
| 7759824 | System and method for detecting an underground object using magnetic field sensing A system and method use magnetic field sensing to detect underground objects for strike avoidance. The system detects magnetic field components for both passive distortions in the magnetic field indicative of a ferromagnetic object and active magnetic fields that ar... | 07/20/2010 |
| 7709976 | Dual-input DC-DC converter with integrated ideal diode function Novel system for supplying power from multiple power sources to a powered device has first and second input power supplies for respectively providing power from first and second power sources. An input selector circuit is responsive to the first and second input pow... | 05/04/2010 |
| 7612470 | System for providing power over Ethernet through a patch panel A system for providing power over Ethernet comprising: a plurality of means for receiving a current limited power signal, each of the means receiving a unique current limited power signal; a plurality of means for connecting one end of a cable, the cable comprising ... | 11/03/2009 |
| 7547991 | Redundancy power for communication devices A system and method to provide redundant power to a failing line in a communication device within a communication network supporting the transmission and reception of data. Through the use of a common Y-Cable connector, a power switch is provided to provide power be... | 06/16/2009 |
| 7538452 | Power-saving circuit and method thereof The present invention discloses a power-saving circuit applied in a portable electronic device, which includes a voltage input module for outputting a first enable signal after receiving an external voltage, a power switch for being operated by a user to output a se... | 05/26/2009 |
| 7525220 | Multi-input power supply circuit, and method of switching power supplies of the same A multi-input power supply circuit includes a plurality of power supplies such as an alternating-current power supply, a direct-current power supply, and two batteries; a transformer including windings corresponding to the plurality of power supplies; switching devi... | 04/28/2009 |
| 7492061 | Tapped interposer for connecting disk drive to chassis Interposers for tapping a signal. An interposer can include an interposer printed circuit board, an output connector that couples the interposer circuit board with a backplane connector of a chassis, an input connector for coupling the interposer circuit board with ... | 02/17/2009 |
| 7456525 | Multi-output power supply device for power sequencing A packaged power supply device (10) is configured to output multiple supply voltages, which are converted from a single input voltage (VIN). The packaged power supply device may can be configured as a DC/DC converter, which is operable to output ea... | 11/25/2008 |
| 7443053 | Control circuit and method of electric output modes A control circuit and control method of electric output modes for a stacked power supply system which has a circuit board to integrate a plurality of power supply devices to output electricity. The circuit board has a control circuit to actuate the power supply devi... | 10/28/2008 |
| 7420296 | Power supply circuit A control circuit for a power supply circuit that selects an appropriate power source to continuously supply power. The control circuit includes a power synthesizing circuit for generating synthesized power by synthesizing a first power supplied from a regulator and... | 09/02/2008 |
| 7414330 | Power switch device A power switching device which is used to receive plenty of input voltage and output a switch voltage is provided. The device comprises a first switching unit, a second switching unit, and a self-bias unit. The power switching device outputs a switch voltage accordi... | 08/19/2008 |
| 7405496 | Transfer circuit topology for redundant power generator regulators and inverting DC drives A method and transfer circuit topology for a redundant power converter for switching a load between power conversion circuits in a redundant system. The transfer circuit topology includes a first contactor and a second contactor each having an input coupled to a sou... | 07/29/2008 |
| 7400067 | Operation of a redundant power supply without isolation devices Methods and apparatuses are disclosed that may allow elimination of isolation devices for redundant power supplies while mitigating the undesirable effects of their elimination. ... | 07/15/2008 |
| 7375442 | Interface circuit for providing a computer logic circuit with first and second voltages and an associated method A universal interface circuit and an associated method are provided that can supply a computer logic circuit, such as the components mounted upon an adapter card, with first and second inputs having first and second predetermined voltage levels, respectively, based ... | 05/20/2008 |
| 7372173 | Wind farm and method for operating same A wind farm with at least two wind turbines (1, 2, 3, 4) connected to a power grid is provided, said wind farm further comprising a control unit (5) connected to said at least two wind turbines (1, 2, 3, 4), and a sensor unit (6) connecte... | 05/13/2008 |
| 7370213 | Power supply unit and computer A series power supply circuit and a switching power supply circuit are combined within a single power supply unit. The switching power supply circuit provides an efficiency lower than that of the series power supply circuit under a light load and provides an efficie... | 05/06/2008 |
| 7355296 | Wind turbine generator system To shorten a startup interval to reach a synchronizing condition, a phase difference and an amplitude difference between the grid voltage and the stator voltage of one phase of a winding are obtained. The difference in amplitude is decreased prior to or in parallel ... | 04/08/2008 |
| 7336004 | Topologies for using multiple energy sources for power conversions A boost converter and a buck-boost converter supply power to a load from a series connection between a first and a second power source. ... | 02/26/2008 |
| 7336457 | Ground fault circuit interrupter (GFCI) end-of-life (EOL) status indicator Disclosed is an end-of-life status alarm indication circuit and method for indicating the failure of the primary contacts of a ground fault circuit interruption (GFCI) device to open when a ground fault circuit is detected by the GFCI device. The GFCI device will pr... | 02/26/2008 |
| 7336005 | System and method for brownout protection of a FET based battery switch A switching circuit operative to switch between a first and second power source to an output is disclosed. The circuit comprises a MOSFET switch electrically connected to the first and second power sources and operative to provide power from either one of the power ... | 02/26/2008 |
| 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 |
| 7298059 | System and method for operating a wind farm under high wind speed conditions A system and method of operating a wind farm, having multiple wind turbine generators, at high wind speeds is provided. Wind speeds at individual wind turbine generators are monitored and a signal is transmitted from the wind turbine generators to a wind farm contro... | 11/20/2007 |
| 7286333 | Switch card apparatus and methods Switch card apparatus are disclosed. In one embodiment, a circuit includes a first portion having a first switch adapted to be coupled to a first voltage, a second portion including a second switch, and a third portion including a third switch. The first portion act... | 10/23/2007 |
| 7284709 | System and method for hydronic space heating with electrical power generation This invention provides a system and method for cogeneration of electric power and building heat that efficiently interfaces a liquid-cooled electric power generator with a multi-zone forced hot water (hydronic) space heating system. The system and method utilizes a... | 10/23/2007 |
| 7286005 | Supply voltage switching circuit A supply voltage switching circuit for a computer includes a chipset, a first transistor, a second transistor, and a third transistor. The chipset includes a first MOSFET and a second MOSFET. A 5V system voltage and a 5V standby voltage are respectively inputted to ... | 10/23/2007 |
| 7274115 | Method and apparatus for powering electronic circuits A method and apparatus for powering an electronic circuit use comparators of supply voltages and voltage regulators to facilitate powering the electronic circuit utilizing more than one supply voltage. In one embodiment, power supplies of step-up power units are con... | 09/25/2007 |
| 7271504 | Power-on reset semiconductor and method of controlling power supply voltage A semiconductor integrated circuit includes a first logic circuit to which a first power supply voltage is applied and which outputs a first signal, a first level conversion circuit to which the first power supply voltage and a second power supply voltage having an ... | 09/18/2007 |
| 7262520 | Robust power distribution systems and methods The present invention provides systems and methods that allow for individual power sources to be disconnected and reconnected without interrupting the power supply from the other power sources and that allow for these power sources to provide power at substantially ... | 08/28/2007 |
| 7254002 | Reverse conduction protection method and apparatus for a dual power supply driver The invention is a dual stage power supply with a protection circuit for preventing reverse conduction through the lower voltage driver of the dual stage power supply and excess power dissipation when the higher voltage driver is on. In one embodiment of the inventi... | 08/07/2007 |
| 7239036 | System and method for power control in wind turbines A system and method for power control in wind turbines are provided. The method includes switching a plurality of switching devices in a power conversion component of the wind turbine system in a normal switching mode to provide power flow through the power conversi... | 07/03/2007 |
