Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 8102151 | Terminal having real time clock (RTC) operator and method of RTC operation using the same A method of operating a Real Time Clock (RTC) in a terminal is provided. The method includes detecting a clock signal transmitted to an RTC block when the main power supply is switched off, and supplying a power to the RTC block for its operation by charging and dis... | 01/24/2012 |
| RE42334 | Smoothing circuit employing charging circuit intermittently charging when input voltage is higher relatively than terminal voltage and discharging circuit intermittently releasing discharging current when terminal voltage is higher relatively than input voltage A smoothing circuit for realizing the miniaturization and the increase of integration scale of a circuit and for easily varying attack time and release time. This smoothing circuit comprises a capacitor, voltage comparator, charging circuit, and discharging circuit.... | 05/10/2011 |
| 7915862 | Apparatus and method for measuring battery charge level of portable terminal Disclosed is a method for measuring a battery charge level of a portable terminal having a removable back-up battery. The method includes determining that the back-up battery is connected in parallel to an main battery of the portable terminal, disconnecting the mai... | 03/29/2011 |
| 7911182 | Method and apparatus for detecting a battery voltage One aspect of the invention involves: maintaining a record of how long a circuit operates in each of a plurality of different operating modes thereof, starting from a point in time at which a battery that powers the circuit is replaced; calculating for each of the o... | 03/22/2011 |
| 7786699 | Power supply charger and method of charging A power supply charger for charging battery cells divided into at least two battery cell groups, each battery cell group having an associated protector circuit module. The power supply charger comprises, for each battery cell group, a power converter, a constant-cur... | 08/31/2010 |
| 7768234 | System and method for automatically synchronizing and acquiring content for battery powered devices Various synchronization and content acquisition tasks able to be performed by a portable device are governed by reference to a budget. In operation, the budget may be adjusted as a function of a state of a battery associated with the portable device, as a function o... | 08/03/2010 |
| 7656124 | Battery management system and driving method thereof A battery management system includes a sensing unit, a controller, an Open Circuit Voltage (OCV) calculator, and a State of Charge (SOC) determination unit. The sensing unit measures a total voltage of the secondary battery. The controller maintains the secondary ba... | 02/02/2010 |
| 7612536 | Pre-set discharging of batteries One embodiment relates to a method of pre-set discharging of a battery in a portable device which is connected to external power. The battery is charged until a fully-charged level is reached, and the time at the fully-charged level is tracked. The charging of the b... | 11/03/2009 |
| 7602150 | Battery device for electronic apparatus with rechargeable secondary battery, fuel cell and run time computing unit A battery device for an electronic apparatus includes a rechargeable secondary battery, a fuel cell, and a run time computing unit receiving data representative of a voltage versus residual-capacity characteristic of the secondary battery and data representative of ... | 10/13/2009 |
| 7586291 | System and method for controlling power of a computer terminal with an external power source Described is system and method for controlling power of a computing terminal with an external power source. In particular, a voltage is measured within a system using a voltage detector of a computing terminal. The system includes a battery which provides power to t... | 09/08/2009 |
| 7573241 | Vehicle having a battery with multiple cells and method for operating such a battery A method for operating a battery having a plurality of battery cells includes determining when certain end of life criteria for the battery are met. A counter is incremented when the certain end of life criteria are met. The battery is rebalanced when it is determin... | 08/11/2009 |
| 7573240 | Low noise charging method and device for portable devices A method is used for charging a battery. According to the method of the present invention, the battery is first charged to a predetermined voltage at a substantially constant current. Then, the charging current is disabled. A pulsing current is applied to the batter... | 08/11/2009 |
| 7560899 | Circuit and method for adjusting safety time-out with charge current A method and circuit for adjusting a safety time-out in charging devices based on a charge current. According to one embodiment, a signal that is based on the charge current is employed to control an output of an oscillator, which controls an operation of a safety t... | 07/14/2009 |
| 7548041 | Power management circuit and methodology for battery-powered systems A power management system including a battery-powered application, in which an input current is supplied by a source of current that may be a current-constrained source, such as a USB port, to a battery for charging the battery and to an application load. Battery ch... | 06/16/2009 |
| 7535201 | Uninterruptible power supply system There is provided an uninterruptible power supply system capable of preventing life shortening of a lithium-ion secondary battery attributable to its overcharge over the whole period of its use. At the start of use of the lithium-ion secondary battery 22, a c... | 05/19/2009 |
| 7525286 | Method and device for vehicle battery protection with battery power source noise pattern analysis An electric source noise pattern analysis method for vehicle battery protection and power management and device thereof provides ignition status recognized against battery discharge due to electric equipment requirement. This device is connected in parallel with the... | 04/28/2009 |
| 7521896 | Abnormal voltage detector apparatus for detecting voltage abnormality in assembled battery An abnormal voltage detector apparatus is provided for an assembled battery including a plurality of battery blocks connected in series to each other. In the abnormal voltage detector apparatus, a detecting part detects whether or not each of the battery blocks is i... | 04/21/2009 |
| 7425815 | Modulation charging circuitry for battery charging Circuitry for charging a battery includes a switch for coupling the power source to the battery. The switch is turned on and off in accordance with a periodic control signal including a plurality of periods. Each period includes a first duration during which the con... | 09/16/2008 |
| 7408325 | Battery charging method A battery charging method that detects the voltage of each series-connected battery, discharges batteries with voltage exceeding a prescribed voltage, and charges a plurality of batteries while maintaining cell balance. This charging method detects the voltage of ea... | 08/05/2008 |
| 7363175 | Query based electronic battery tester An electronic battery tester for testing a storage battery provides a test output indicative of a condition of the battery. Electronic measurement circuitry provides a measurement output related to a condition of the battery. The battery condition is determined base... | 04/22/2008 |
| 7358704 | Critical state estimation system and method for secondary cells For estimation of a critical state of a performance under a working condition of a secondary cell, in consideration of an internal resistance of the cell, a variable data provider provides variable data on the performance, including a first data on a variant of the ... | 04/15/2008 |
| 7342365 | Systems and methods for reducing input current in photoflash chargers A circuit for charging a photoflash that preferably reduces the average input to the switching regulator in an efficient fashion is provided. The regulator includes a transformer. The transformer includes a primary winding and a secondary winding. The switchi... | 03/11/2008 |
| 7342321 | Bicycle electric power unit A bicycle electric power unit supplies electric power to a bicycle motor unit having a power source, a power source controller, a power source voltage detector, a first power source switch and a second power source switch. The power source controller turns off the f... | 03/11/2008 |
| 7319304 | Shunt connection to a PCB of an energy management system employed in an automotive vehicle A method of coupling a shunt to a printed circuit board (PCB) of an energy management system is provided. The method includes coupling flexible electrical connectors to the shunt and soldering the flexible electrical connectors to connection points on the PCB of the... | 01/15/2008 |
| 7317299 | Method of calculating aging factor of battery for hybrid vehicle Disclosed herein is a method of calculating the aging factor of a battery for a hybrid vehicle. The method includes the steps of detecting a first actual SOC value of the battery during operation of the vehicle; storing the first SOC value; initializing accumulated ... | 01/08/2008 |
| 7295129 | Battery operated device with a battery life indicator A countdown timer for high performance flashlights and similar battery-operated devices that is initialized with a runtime figure equal to the life expectancy of installed linear depletion-curve cells, that is always on and visible, that counts down whenever the fla... | 11/13/2007 |
| 7295936 | Electronic battery tester with relative test output An electronic battery tester for testing a storage battery determines a condition of the battery. The condition is a relative condition and is a function of a dynamic parameter of the battery and an empirical input variable. ... | 11/13/2007 |
| 7289166 | Information processing apparatus and method of displaying remaining battery capacity of the information processing apparatus An information processing apparatus has a battery portion which supplies power, a remaining capacity detecting portion which detects a remaining capacity of the battery portion, a remaining time computing portion which computes a remaining time during which processi... | 10/30/2007 |
| 7285927 | Control apparatus for electric motor of inverter system and control apparatus for electro mechanical brake A relay switch for selectively connecting a power supply line of an inverter to a ground line is inserted between the inverter and a power source, and a power consumption unit such as a resistor element is inserted between the relay switch and ground line. ... | 10/23/2007 |
| 7246015 | Alternator tester An alternator tester is provided for testing an alternator of a vehicle while the alternator is coupled to the vehicle. A sensor is configured to couple to the vehicle and sense a signal related to operation of the alternator. A memory contains data related to opera... | 07/17/2007 |
| 7235951 | Charging apparatus There is provided a charging apparatus, which uses a charging control timer having a relatively simple constitution, capable of preventing an overcharge of a secondary battery while detecting the overcharge of the secondary battery even if a charge current value is ... | 06/26/2007 |
| 7218118 | Method for monitoring a condition of a battery A method for monitoring the condition of a battery of a marine propulsion system provides the measuring of a voltage characteristic of the battery, comparing the voltage characteristic to a preselected threshold value, and evaluating the condition of the battery as ... | 05/15/2007 |
| 7205746 | Battery cover assembly having integrated battery condition monitoring A battery cover assembly having integrated battery condition monitoring for measuring electrical current passing to and from a battery post, including an electrically conductive collar for connecting to a post of a battery, and an electrically conductive terminal fo... | 04/17/2007 |
| 7205747 | System and method for monitoring a charging period in a battery charger An apparatus and method for disabling a charging counter circuitry within a battery charger is disclosed. The apparatus includes circuitry connected to a pin associated with the charging counter circuitry of the battery charger, said circuitry receiving a signal fro... | 04/17/2007 |
| 7200507 | Method and device for clock calibration A method and a device for calibrating an interior clock generator installed inside a power monitoring unit of a rechargeable battery. The device includes an input pin for inputting an external clock signal from an exterior clock generator installed outside the power... | 04/03/2007 |
| 7197650 | Charging and monitoring apparatus and method of charging a battery and monitoring the power level through power supply line A battery is charged utilizing electric power provided by a power supply line included in a cable that is in accordance with IEEE 1394. A charging apparatus and a personal computer are connected together by the cable. A power source unit in the personal computer con... | 03/27/2007 |
| 7190171 | Detecting method and detecting apparatus for detecting internal of rechargeable battery, rechargeable battery pack having said detecting apparatus therein, apparatus having said detecting apparatus therein, program in which said detecting method is incorporated, and medium in which said program is stored A detecting method for detecting internal resistance of an inspective rechargeable battery when said inspective rechargeable battery is charged by the constant current-constant voltage charging regime, said detecting method comprising at least a step (a) wherein an ... | 03/13/2007 |
| 7155320 | Distributed power delivery system A method for supplying power includes supplying power to at least one critical device, supplying power to at least one essential device, and remotely removing power to the essential device while maintaining power to the critical device. ... | 12/26/2006 |
| 7154276 | Method and apparatus for measuring a parameter of a vehicle electrical system An apparatus for measuring electrical parameters for an electrical system measures a first and second parameters of the electrical system between connections to the electrical system. A processor determines a third electrical parameter of the electrical system as a ... | 12/26/2006 |
| 7135839 | Battery pack and method of charging and discharging the same Disclosed are a battery package and a method for charging and discharging secondary batteries including nickel hydrogen batteries by refreshing and suppressing inactivity of the batteries. More concretely, battery package (101) comprises a group of batteries ... | 11/14/2006 |
