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 |
| 8415929 | Battery charging circuit An example battery charging circuit includes a rectifier circuit for rectifying a three-phase AC voltage outputted from an electric power generator and generating a charge voltage for charging a battery. A voltage detection circuit detects that the voltage of the ba... | 04/09/2013 |
| 8248036 | Battery charging circuit for improving operating stability A battery charging circuit for charging a rechargeable battery and improving operating stability includes a plurality of resistors for generating a first voltage; a first reference voltage source for providing a first reference voltage; an error amplifier for genera... | 08/21/2012 |
| 8198867 | Charging control method for secondary battery and battery charger A method and a charger for auxiliarily charging a secondary battery to a desired SOC with high accuracy. A charger for a secondary battery includes a charge termination condition storing unit which stores a relationship between open circuit voltages OCV of a plurali... | 06/12/2012 |
| 8063611 | Accumulator A DC blocking capacitor and a resistor are coupled in series, and coupled in parallel with an electricity storing section. An ON/OFF circuit and a peak voltage holding circuit are coupled in parallel with the resistor. A current sensing section is coupled in series ... | 11/22/2011 |
| 8035347 | Battery charger A battery charger for charging a secondary battery using a power supply circuit, includes a discrimination circuit to discriminate a constant-current charging mode and a constant-voltage charging mode, and a controller to which a discrimination signal is supplied. W... | 10/11/2011 |
| 7584813 | Driving device and motor vehicle equipped with driving device A driving device of the invention is mounted on a motor vehicle, where a sun gear, a carrier, and a ring gear of a planetary gear mechanism are respectively connected to a motor MG1, to an engine, and to a drive shaft and a motor MG2. The driving devic... | 09/08/2009 |
| 7365952 | Battery pack having a protection circuit The battery pack according to the present invention is to avoid any trouble or the like of the primary or secondary battery inside the battery pack with a simple mechanical construction when a load is intermittently connected between the external terminals of the ba... | 04/29/2008 |
| 7364078 | Bar code reading method and apparatus for a battery tester charger An apparatus for entering information into a battery test/charger that includes a bar code reader, a controller that is used to receive information from the bar code reader wherein the controller controls a battery tester/charger. In addition, a method for entering ... | 04/29/2008 |
| 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 |
| 7352556 | Charging method for squib A charging method for a plurality of squibs which charges up each storage device built in or attached to each squib which is connected to an ignition control device via a common bus, and can be selectively operated by electrical energy and electrical signals which a... | 04/01/2008 |
| 7345455 | Staggered backup battery charging system A battery backup system includes a control device including a power sensing device, a discharge circuit, a charging circuit, and a plurality of battery packs. A lower threshold is established representative of a minimum acceptable effective energy capacity. Each bat... | 03/18/2008 |
| 7332892 | Method for predicting the voltage of a battery The present invention discloses a method for predicting the voltage of a battery, in particular a vehicle battery. The method according to the invention makes it possible to predict a voltage drop before it actually occurs as a result of a load. For this purpose, a ... | 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 |
| 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 |
| 7285936 | Charging system for battery-set An object is to provide a charging system in which a battery can be charged in a fully charged state or close to the fully charged state while preventing performance deterioration of a battery due to heat generated during charge. A charging system 1 for a bat... | 10/23/2007 |
| 7278032 | Circuit and operating method for integrated interface of PDA and wireless communication system A circuit and operating method for an integrated interface of a PDA and a wireless communication system are disclosed. The circuit includes a PDA-turn-on-wireless-communication-system signal line, a PDA-reset-wireless-communication-system signal line, a PDA-state si... | 10/02/2007 |
| 7265518 | Method of automatically cutting off power in case of low battery voltage in mobile electronic unit A method for automatically cutting off power in case of a low battery voltage in a mobile electronic unit is provided. The method comprises (a) cutting off the power of the mobile electronic unit when a battery voltage is detected in a first check section during a b... | 09/04/2007 |
| 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 |
| 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 |
| 7161334 | Modular high voltage power supply for chemical analysis A high voltage power supply for use in a system such as a microfluidics system, uses a DC—DC converter in parallel with a voltage-controlled resistor. A feedback circuit provides a control signal for the DC—DC converter and voltage-controlled resistor so as to r... | 01/09/2007 |
| 7148650 | Maximum power point motor control A method and apparatus are implemented in software to control motor speed as a function of available power in a DC source-inverter-AC motor system, i.e. to perform maximum power tracking of motor speed. An inverter or motor drive converts DC power from a DC source, ... | 12/12/2006 |
| 7144646 | Method and apparatus for multiple mode control of voltage from a fuel cell system A fuel cell system determines each of a battery charging current error, a battery voltage error, and a stack current error. The fuel cell system regulates current through a series pass element in response to a greater of the determined errors. Thus, the fuel cell sy... | 12/05/2006 |
| 7135791 | Electric tightening device A controller compares a minimum value of power source voltage which decreases in association with starting current generated upon start of a motor with a threshold value in a storing unit. When the minimum value is less than the threshold value, the controller notif... | 11/14/2006 |
| 7129675 | System and method for battery charging A method for charging a lead acid storage battery to advantageously extend its life is described. The termination of a charging process is based upon an evaluation of the first derivative (dv/dt) and second derivative (d2v/dt2) of the applied charging voltage. By ut... | 10/31/2006 |
| 7126341 | Automotive vehicle electrical system diagnostic device An automotive vehicle electrical system diagnostic apparatus includes first and second electrical connections configured to electrically couple to an electrical system of an automotive vehicle which includes a battery. Digital samples are obtained during operation o... | 10/24/2006 |
| 7126294 | Method and device for controlling photovoltaic inverter, and feed water device A photovoltaic inverter control method includes steps of monitoring a variation in output voltage of a solar battery by a power and voltage monitoring circuit (51) and, when the variation occurs, accelerating or decelerating an electric motor (3) to ma... | 10/24/2006 |
| 7106070 | Broad-band low-inductance cables for making Kelvin connections to electrochemical cells and batteries A broad-band technique for reducing the distributed inductance of a four-conductor Kelvin cable is disclosed. A special inductance-canceling cable section is connected in tandem with the cable section contacting the cell/battery. Connections between the two cable se... | 09/12/2006 |
| 7034541 | 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... | 04/25/2006 |
| 7019494 | Methods of charging lithium sulfur cells Disclosed is a method of charging a lithium-sulfur electrochemical cell wherein the lithium-sulfur cell comprises a cathode comprising an electroactive sulfur-containing material, an anode comprising lithium, and a nonaqueous electrolyte. ... | 03/28/2006 |
| 7015728 | High voltage floating current sense amplifier A high voltage floating current sense amplifier circuit, including first and second resistive devices and a floating amplifier circuit, that senses current through a current sense device coupled between an output node and a battery node each referenced to a common n... | 03/21/2006 |
| 7003411 | Electronic battery tester with network communication An electronic battery tester for testing a storage battery includes test circuitry configured to provide a battery test output related to a condition of the battery. A memory stores a battery tester address of the battery tester, and communication circuitry transmit... | 02/21/2006 |
| 7003410 | 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. ... | 02/21/2006 |
| 6998847 | Electronic battery tester with data bus for removable module An electronic battery tester is provided for testing storage batteries. Battery test circuitry is configured to couple to the storage battery and measure a condition of the battery. A removable module is configured to couple to the battery tester to add increased fu... | 02/14/2006 |
| 6992464 | Battery charger capable of indicating time remaining to achieve full charge A battery charger includes a battery voltage detector for detecting the voltage of a secondary battery and a battery temperature sensor for detecting the temperature of the secondary battery. A controller determines the voltage of the secondary battery prior to begi... | 01/31/2006 |
| 6981076 | Mechanism to disable dynamically a computer audio input/output connector An apparatus and method are presented for dynamically disabling a first audio input/output (“I/O”) connector when an audio I/O device is coupled to a second audio I/O connector, locating the disablement point to reduce significantly any spurious noise coupled on... | 12/27/2005 |
| 6975080 | Rotating electrical machine for vehicle A rotating electrical machine for a vehicle is capable of improving the acceleration performance and the fuel mileage of the vehicle while achieving the prevention of occurrence of overvoltage and the improvement of its power generation characteristic at the same ti... | 12/13/2005 |
| 6956357 | Charging apparatus and charging method In the case of charging by a charging apparatus having a plurality of input terminals to which external power sources for charging a secondary battery are inputted, it is prevented that a current of the inputted power source is outputted to the outside from the othe... | 10/18/2005 |
| 6949913 | Charging apparatus and charging method In the case of charging by a charging apparatus having a plurality of input terminals to which external power sources for charging a secondary battery are inputted, it is prevented that a current of the inputted power source is outputted to the outside from the othe... | 09/27/2005 |
| 6937947 | Battery charger system and method for providing detailed battery status and charging method information A battery charger system and method are disclosed for providing detailed battery status and charging method information and for controlling the charging of the battery. A controller is provided within the battery charger. The controller starts a measurement cycle. D... | 08/30/2005 |
