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 |
| 8421466 | Apparatus and method for sensing leakage current of battery An apparatus for sensing a leakage current of a battery comprises a floating capacitor charged with voltage detected from a cathode or anode terminal of a battery, a cathode terminal selection switching unit for selecting a voltage detection path for the cathode ter... | 04/16/2013 |
| 8384390 | Systems and methods for determining battery capacity level A battery gas gauge includes a voltage detection unit and a processor. The voltage detection unit is coupled to a battery pack and can measure a plurality of open circuit voltages of a plurality of cells in the battery pack respectively. The processor is coupled to ... | 02/26/2013 |
| 8188750 | Battery module voltage detector A battery module voltage detector can reduce the difference in frequency response of an anti-aliasing filter for each battery module whose voltage is measured, and provide an accurate voltage measurement. The battery module voltage detector includes a plurality of s... | 05/29/2012 |
| 8129997 | Battery cell voltage measuring apparatus and method Disclosed is a battery cell voltage measuring apparatus and method. The battery cell voltage measuring apparatus comprises a plurality of floating capacitors provided corresponding to a plurality of cells contained in a battery pack; a plurality of switching units p... | 03/06/2012 |
| 8058877 | Circuit for measuring battery voltage and method for battery voltage measurement using the same The present invention relates to circuit for measuring battery voltage and method for battery voltage measurement using the same. In the circuit for measuring battery voltage and method for battery voltage measurement using the same, three or more capacitors, which ... | 11/15/2011 |
| 7990155 | Heavy duty battery system tester and method A systematic method and system for testing the charging and starting systems of a vehicle, which requires each individual test to pass before proceeding is provided. In addition, the invention incorporates an improved alternator test that determines whether the alte... | 08/02/2011 |
| 7834635 | Car power source apparatus The car power source apparatus is provided with a driving battery 1 that supplies power to the car's electric motor, a voltage detection circuit 3 that measures the voltage of batteries 2 in the driving battery 1, a plurality of voltage d... | 11/16/2010 |
| 7728598 | Method and apparatus for estimating the charge/discharge electricity amount of secondary batteries An apparatus estimates charge/discharge electricity amount without being affected by current measurement error. Under specific selection conditions, a no-load voltage calculation part uses pairs of data consisting of current data I(n) and voltage data V(n) correspon... | 06/01/2010 |
| 7656163 | Remaining-capacity dispersion detecting apparatus and remaining-capacity control apparatus for battery pack A remaining-capacity dispersion detecting apparatus for a battery pack having a plurality of cells includes a total voltage sensing section adapted to sense a total voltage which is a terminal voltage of the whole of battery pack; a storing section adapted to store ... | 02/02/2010 |
| 7589534 | Method and apparatus for detecting cell voltage of battery pack Disclosed is a method and apparatus for detecting a cell voltage of a battery pack. The method comprises the steps of storing an impedance of the conductive wire from a part connected to a voltage detector to a part connected with the corresponding battery cell exis... | 09/15/2009 |
| 7557584 | Method and device for estimating charge/discharge electricity amount of secondary cell The present invention provides an apparatus that can estimate the charge/discharge electricity amount without being affected by current measurement error. If specific selection conditions are met, a no-load voltage calculation part (105) takes a plurality of ... | 07/07/2009 |
| 7432719 | Abnormality monitoring apparatus in load drive circuit An ECU performs a program. In the program, in the case where a converter is performing an operation for increasing a voltage (i.e., YES in step S 102), when a difference between an estimated battery voltage VBE and a battery voltage VB has continued to be lar... | 10/07/2008 |
| 7420374 | Battery with remaining electrical power display function and method of the same This invention provides an electronic device that has a battery with a power storage unit and a display module, a power detector and a display control module. The power storage unit is for storing electrical power and the display module is placed on the surface of t... | 09/02/2008 |
| 7405579 | Voltage detector and insulator interface The present invention is to provide a voltage detector having a common communication line for reducing a manufacturing cost. A low voltage line CPU transmits a detection instruction including an assignment of one address among a plurality of blocks. The detection in... | 07/29/2008 |
| 7403016 | Car power source apparatus A car power source apparatus is provided with a battery having a plurality of battery modules connected in series on positive and negative sides of a midpoint reference node, and a voltage detection circuit that detects the voltage of one or a plurality of battery m... | 07/22/2008 |
| 7400149 | Method for assessment of the state of batteries in battery-supported power supply systems After disconnection from the power supply system, a discharge characteristic of the no-load voltage is recorded automatically by means of a control unit across a discharge resistance during a stage-by-stage discharge cycle from a charged battery which is being opera... | 07/15/2008 |
| 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 |
| 7352155 | Apparatus and method for detecting battery pack voltage An apparatus and method for detecting battery pack voltage is disclosed. The voltage detection apparatus includes a plurality of selectors for providing a cell voltage of a predetermined cell, a detector buffer for receiving the cell voltage of the predetermined cel... | 04/01/2008 |
| 7352156 | State-of-charge estimating device of secondary battery A state-of-charge (SOC) estimating device and method for a secondary battery that estimates the SOC of the battery with high precision when variation takes place in the parameters of the battery model, even if the input current is constant. A first SOC estimating pa... | 04/01/2008 |
| 7336462 | Alternator and starter tester protection apparatus and method An method and apparatus testing an alternator and/or starter assembly including a power source for energizing the alternator and/or starter, a computer processor for monitoring electrical current supplied to energize the alternator and/or starter wherein the compute... | 02/26/2008 |
| 7332913 | Method and apparatus for determining to which battery cell in a string of battery cells a test instrument is connected A method and apparatus for determining to which battery cell in a string of battery cells between a pair of busses a test instrument is connected. Knowing the average voltage of the battery cells in the string, the voltage from one of the busses to the side furthest... | 02/19/2008 |
| 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 |
| 7300041 | Vertical alternator holding apparatus and method for alternator testing An apparatus for supporting an alternator for testing uses a supporting pin mounted to extend in a first direction relative to the alternator. A first holding pin extends in a second direction relative to the alternator, and has two ends with a first end having a bo... | 11/27/2007 |
| 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 |
| 7286783 | Variable force biasing mechanism and electrical connection A biasing mechanism in an image forming apparatus exerts a variable force on a removable cartridge unit to generate a nip force between a roller in the cartridge unit and another roller. A pivot member is fixed to the apparatus housing. An arm is pivotally mounted i... | 10/23/2007 |
| 7282811 | Detection of short circuits in a vehicle The invention relates to a method and an arrangement for the detection of shorts circuits in the electrical system in a vehicle provided with a battery comprising—measuring and storing the value of the battery voltage at a first moment in time,—measuring the val... | 10/16/2007 |
| 7259597 | Low-voltage detection circuit A low-voltage detection circuit detects a terminal voltage of a power supply terminal. The low-voltage detection circuit includes a first voltage-dividing circuit, a second voltage-dividing circuit, and a comparator. The second voltage-dividing circuit includes a bi... | 08/21/2007 |
| 7253680 | Amplifier system with current-mode servo feedback A system and method for compensating an amplifier apparatus for low frequency and/or DC components of an externally applied input signal as well as for any voltage offsets contributed by the amplifier circuitry. Band-limited servo feedback is applied to predetermine... | 08/07/2007 |
| 7248053 | One time operating state detecting method and apparatus A method and apparatus for detecting a change in an electrical property between contacts. A one-time operating state detection device includes a member coupling a pair of contacts and a detector for detecting a change in the coupling between the pair of contacts whe... | 07/24/2007 |
| 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 |
| 7245111 | Regulator system for alternator An improved regulator system is disclosed for controlling a field winding of an alternator to regulate the charging of a battery. The improved regulator system comprises an internal regulator mounted onto the alternator. The internal regulator has an internal regula... | 07/17/2007 |
| 7245945 | Portable computing device adapted to update display information while in a low power mode Briefly, in accordance with one embodiment of the invention, a portable computing device that has a processor, a direct memory access (DMA) engine, and a display controller may transfer data with the DMA engine to the display. The DMA engine may transfer the data wh... | 07/17/2007 |
| 7239146 | Indicator of remaining energy in storage cell of implantable medical device A manganese dioxide (MnO2) or silver vanadium oxide (SVO) or other battery of an implantable medical device having a relatively flat quiescent battery voltage during a beginning portion of the battery's useful life, makes it difficult to use quiescent battery voltag... | 07/03/2007 |
| 7235977 | Handheld tester for starting/charging systems The hand-held portable tester provides an improved system and method for testing storage batteries, vehicle starting systems and vehicle charging systems. The system and method more accurately calculates tests results for multiple types of storage batteries. The sys... | 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 |
| 7215130 | Testing and display of electrical system impedance An automated method is provided for testing an electrical circuit using a system tester. Load leads and sense leads of the tester are connectable to any two points of an electrical circuit, such as in a vehicle system, for displaying in real time the impedance betwe... | 05/08/2007 |
| 7212911 | Alternator and starter tester apparatus and method An alternator and starter tester system is provided that includes a protective hood or cover, a controller connecting an LCD touch-screen, an alternator main harness connector, a starter harness self-test connector, a barcode connector, USB host and USB function con... | 05/01/2007 |
| 7212414 | Adaptive inductive power supply A contactless power supply has a dynamically configurable tank circuit powered by an inverter. The contactless power supply is inductively coupled to one or more loads. The inverter is connected to a DC power source. When loads are added or removed from the system, ... | 05/01/2007 |
