Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8159088 | Display device and portable terminal In order to increase the continuous operating time of a display device driven by a battery or the like, and a portable information terminal using the same, the volume and weight of the battery are increased. Thus, there arises a trade-off between the increased capac... | 04/17/2012 |
| 8154153 | Method and apparatus for providing a communication channel through an output cable of a power supply A power supply system is introduced herein. The power supply system includes a power converter to supply a power source to an electronic circuit through an output cable of the power supply. A communication unit is coupled to the output cable of the power supply to d... | 04/10/2012 |
| 8148846 | Methods and apparatus for providing uninterruptible power Power supply systems and methods are provided. In one aspect, a power supply system includes a frame, a power input to receive input power from a power source, a power output to provide output power to a load, at least one battery module mounted in the frame and hav... | 04/03/2012 |
| 8143744 | Method and apparatus for providing uninterruptible power At least one aspect is directed to an uninterruptible power supply that includes a first input having an input line connection and an input neutral connection to receive a first input voltage from a first voltage source, a second input to receive a second input volt... | 03/27/2012 |
| 8115338 | Emergency power unit The present invention relates to an emergency power unit for apparatuses, in particular domestic apparatuses, which unit comprises a battery charging device (61) having an input connected to a connector (12, 14, 15) and comprising accumulator means ( | 02/14/2012 |
| 8115339 | Isolation control high speed transfer switch for uninterruptible power supply, power supply system using the switch and isolation control high speed transfer switching method Disclosed is a UPS isolation control high speed transfer switch for switching a power supply path of a UPS to a bypass line and a power supply system equipped with the high speed transfer switch. The switch is isolated from the UPS and detects the output power of UP... | 02/14/2012 |
| 8110947 | Uninterruptible power supply watchdog system and auto recovery method using the system According to the present invention, provided is a watchdog system for Uninterruptible Power Supply (UPS), and auto recovery method using the same. In case the power supply path of UPS is switched from the normal power line to the bypass line, the UPS watchdog system... | 02/07/2012 |
| 8106533 | Power system A power system is designed for providing reliable electrical power to a telecommunications facility and/or associated devices. The system includes a DC bus adapted to receive electrical power from a primary energy source. A switch is provided for switching from the ... | 01/31/2012 |
| 8106534 | Method and apparatus for predicting end of battery life A powering subassembly for a portable electronic device includes a main battery, a converter, a backup battery, and a controller. The main battery provides a main voltage and the backup battery can provide a backup voltage. The converter receives the main voltage an... | 01/31/2012 |
| 8106532 | Illumination device of gradual dimming type after power interruption This invention relates to an illumination device of gradual dimming after power interruption in which a built-in power storage unit and a gradual-dimming light intensity drive control unit are provided within the lamp body, the light emitting source of the illuminat... | 01/31/2012 |
| 8097981 | AC/DC power converter using magnetic energy recovery switch An AC/DC power converter which charges a secondary battery from an AC power supply and also converts power from the secondary battery to the AC voltage is provided. A capacitor C is connected to DC terminals of the four reverse-conductive type semiconductor switches... | 01/17/2012 |
| 8080900 | Direct-coupled IT load Apparatus and associated method and computer program products involve a highly efficient uninterruptible power distribution architecture to support modular processing units. As an illustrative example, a modular processing unit includes an integrated uninterruptible... | 12/20/2011 |
| 8067856 | Power management system A power supply system includes at least one power supply module and at least one redundant power supply module. A power supply module may include a charging resistor in parallel with an OR-ing device to keep all filter capacitors charged as long as at least one powe... | 11/29/2011 |
| 8063512 | Power-saving power supply apparatus with battery module A power-saving power supply apparatus with battery module converts an inputted AC power into an outputted DC power and includes: a Triac switch electrically connected to the inputted AC power; a Triac driver electrically connected to the Triac switch; a power microp... | 11/22/2011 |
| 8049367 | Power supply system, vehicle with the power supply system and power supply system control method When a vehicle is set to a travel control mode or external charging mode, a vehicle system is activated for executing the control mode to which the vehicle is set. A converter ECU selects one sub power storage unit to be used first after activation of the vehicle sy... | 11/01/2011 |
| 8049366 | DC power system for household appliances A DC power system is provided to generate the power from renewable energy and directly supplies the DC power to DC household appliances, thus saving energy that would be wasted during the conversion of DC to AC and back to DC and saving the cost of a rectifier or po... | 11/01/2011 |
| 8035251 | Uninterruptible power supply An uninterruptible power supply includes an input switching circuit, an AC-to-DC converting circuit, a bus capacitor, an energy storage unit, a charging circuit, a DC-to-DC converting circuit, and a system control circuit. The input switching circuit receives an inp... | 10/11/2011 |
| 8022573 | Shipping container active lock release failsafe A lock mechanism to lock at least one door of a container in a closed position includes a housing enclosing at least a portion of the lock mechanism, and a lock circuit at least partially enclosed within the housing. The lock circuit includes a main power supply, a ... | 09/20/2011 |
| 8022572 | Genset system with energy storage for transient response A power generating system having a variable speed genset is provided. The variable speed genset includes an engine and a variable speed generator. The variable speed generator is mechanically coupled to the engine and is configured to generate electrical power. The ... | 09/20/2011 |
| 8018091 | Power-mode selectable backup power supply A selectable backup power supply device for providing power to a real time clock (RTC) and a memory unit is disclosed. The device includes a backup battery, a first power outputting unit and a second power outputting unit, wherein the backup battery outputs a backup... | 09/13/2011 |
| 8018092 | System and method for managing power supply to a circuit breaker control unit A system for controlling power in a circuit breaker trip unit is disclosed. The system includes: a user interface operably coupled to the trip unit and having a plurality of input keys; a power conditioner operably coupled to the user interface and operably coupled ... | 09/13/2011 |
| 8008807 | Uninterruptible power supply with low power loss An uninterruptible power supply includes an energy storage unit, an AC-to-DC converting circuit, a charging circuit, a selection circuit, a primary detecting circuit, a primary control circuit and a secondary control circuit. The primary detecting circuit is connect... | 08/30/2011 |
| 7989981 | Power adaptor and storage unit for portable devices A power adaptor and storage unit is configured to simultaneously provide power to a portable electronic device and to a portable power module. In some cases, the portable power module is integrated into the power adaptor. The power adaptor receives power unusable by... | 08/02/2011 |
| 7982339 | Controlling method of a battery mode of a uninterruptible power supply for an active power factor corrected load A controlling method of a battery mode of a UPS for an active PFC power supply has the following acts of monitoring the AC power source and determining whether the AC power source is terminated or not, wherein if a determining result is positive, the controlling met... | 07/19/2011 |
| 7982340 | Telecommunications megasite with backup power system The present invention is an energy generating system for a telecommunications megasite which uses fuel cells and capacitors to backup a commercially available primary source of power. ... | 07/19/2011 |
| 7948118 | Uninterruptible power supply and method for implementing said power supply An uninterruptible power supply including at least one first input, a power supply output, a first converter which is shut down when operating in economic mode, a reversible second converter, a branching and/or selection circuit for connecting an input directly to t... | 05/24/2011 |
| 7944088 | Battery backup device A battery backup device is provided. The battery backup device includes a first connector; a second connector; a data line which transmits data provided from an external source via the first connector to the second connector; a storage unit which is connected to the... | 05/17/2011 |
| 7944089 | Uninterruptible power supply module An uninterruptible power supply module is provided. The uninterruptible power supply module comprises an input terminal, a direct-current voltage source, a control module, a control arm-bridge module, an inductive element, a power source selection switch, and a swit... | 05/17/2011 |
| 7939968 | Method and apparatus for providing uninterruptible power Methods and apparatus for providing uninterruptible power are provided by aspects of the invention. One aspect is more particularly directed to an uninterruptible power supply for providing power to a load. The uninterruptible power supply includes a first input to ... | 05/10/2011 |
| 7932636 | Automatic start-up circuit and uninterruptible power supply apparatus having such automatic start-up circuit An automatic start-up circuit for use in an uninterruptible power supply apparatus is provided. The uninterruptible power supply apparatus includes an energy storage unit and a switching circuit. The automatic start-up circuit includes an operating status detecting ... | 04/26/2011 |
| 7910250 | System and method for recharging a metal-air converter used for vehicle propulsion A power supply system for powering an electric motor (16) in an electric vehicle includes a metal-air converter (12) connected to the motor (16) for driving the motor (16) and a generator (10) connected to the metal-air converter (... | 03/22/2011 |
| 7911085 | Power saving uninterruptible power supply The power saving uninterruptible power supply (UPS) has a first and second switches, an energy spared switch, a transformer, an automatic voltage regulator (AVR), a charger-and-inverter, a normal mode determination unit and an electric switch. When the utility power... | 03/22/2011 |
| 7898110 | On-line uninterruptible power system The present invention discloses an on-line uninterruptible UPS system, comprising an AC-DC conversion circuit, a DC-AC conversion circuit and a backup battery circuit, characterized in that the backup battery circuit comprises a battery group and two switch devices,... | 03/01/2011 |
| 7880334 | Power supply control for power generator A system (100) for connecting a fuel cell stack to an A.C. grid to provide power thereto is disclosed in which a voltage regulated D.C. bus (110) is provided to be coupled to the fuel cell stack, a bidirectional inverter (120) is coupled to the ... | 02/01/2011 |
| 7872374 | Battery communication system An uninterrupted power supply (“UPS”) system is disclosed which uses a battery communication system to communicate to a UPS processor information concerning the status of a battery pack in an array of parallel coupled battery packs. The battery packs provide bac... | 01/18/2011 |
| 7868481 | Emergency capacitor for a contactless device A power supply for a contactless device having a power supply circuit configured to provide an internal power supply voltage, an emergency capacitor circuit having an emergency capacitor, configured to provide a source current during an external field pause, and a p... | 01/11/2011 |
| 7863775 | Power management and control in electronic equipment To manage power of a fuel cell and a battery for an electronic device, an amount of power consumed by an operation module in the electronic device may be sensed. Generated voltage capacity of the fuel cell and remaining capacity of the battery may be acquired. The b... | 01/04/2011 |
| 7859133 | Portable apparatus of emergency power supply and battery charger The present invention relates to a portable apparatus combining a battery charger with an emergency power supply, including: a hand-held body; an AC input section, a battery section; a DC output section; an LED display section; and a control circuit section. Accordi... | 12/28/2010 |
| 7855472 | Method and apparatus for providing uninterruptible power Methods and apparatus for providing uninterruptible power are provided by aspects of the invention. One aspect is more particularly directed to an uninterruptible power supply for providing power to a load. The uninterruptible power supply includes an input to recei... | 12/21/2010 |
| 7851944 | Integrated uninterrupted power supply unit A system may provide integrated uninterrupted power supply for computer systems. The system comprise a first unit that outputs an AC input voltage, and produces an AC output voltage from a battery voltage in response to the AC input voltage being absent; and a secon... | 12/14/2010 |
