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| Number | Title | Issue Date |
| 7403129 | Electrical switching apparatus and method employing acoustic and current signals to distinguish between parallel and series arc faults A circuit breaker includes a first lug and second and third acoustic lugs electrically connected to a power circuit. Separable contacts are electrically connected in series between the first lug and the second acoustic lug. An operating mechanism opens and closes th... | 07/22/2008 |
| 7382270 | Method and apparatus for communication between an electronic device and a connected battery An apparatus supporting both identification of a battery type and communications over an interface between a battery and an electronic device is disclosed. The electronic device includes a processor for communicating with communications circuitry of the battery. Ide... | 06/03/2008 |
| 7330105 | System and apparatus for vehicle electrical power analysis Apparatus for monitoring an electrical power supply system of a vehicle, the vehicle having a battery and internal combustion engine, an alternator, and a starter. The apparatus has a filter for determining the battery terminal voltage when the vehicle ignition is t... | 02/12/2008 |
| 7310049 | Status indicator A status indicator indicates an operating state, including an electrical malfunction, of an electrical load that is located and controlled from locations remote from a monitoring location. ... | 12/18/2007 |
| 7310048 | Method and apparatus for sensing a current in a circuit Techniques are disclosed to sense a current in a circuit. For instance, current sense circuit according to the teachings of the present invention includes a current sense resistor coupled to an input of the current sense circuit. The current sense resistor is couple... | 12/18/2007 |
| 7265520 | Electronic apparatus and method of controlling the electronic apparatus An electronic watch in which the display on a liquid crystal display 236 is prohibited when the detected output voltage of a secondary battery 220 drops to a first predefined voltage. An initialization process is performed when the detected voltage of ... | 09/04/2007 |
| 7205902 | Vehicle occupant detection system In an occupant detection system, a determination section of an occupant detection ECU determines occupancy status of the seat based on loads applied to the seat. A power supply section of the ECU provides a power supply voltage lower than a battery voltage of the ve... | 04/17/2007 |
| 7171313 | Protection apparatus for reciprocating machine Apparatus is disclosed for sensing impact events in reciprocating machinery. The apparatus establishes first and second reference or threshold voltages, where the second reference voltage is greater than the first reference voltage. The number of impact events (N | 01/30/2007 |
| 7123155 | Operational mode-based battery monitoring for a battery-powered electronic device A method and an electronic device monitor a battery of the device with respect to device operational mode in one or both of battery charge level monitoring and battery cut-off determination. Mode-based monitoring employs a mode-specific wait period prior to performi... | 10/17/2006 |
| 7110896 | System and method for displaying battery status and other parameters of a portable electronic device in a power-off state A system and method quickly and effectively display battery status and/or other parameters of a portable electronic device. In one embodiment, a method displays parameters of a portable electronic device in a power-off state by storing a plurality of user-definable ... | 09/19/2006 |
| 7088256 | Portable electronic device and method of operation therefore A portable electronic device (100) comprises an attached device (190,195), a vibrator (175), and a processor (105) coupled between the attached device (190, 195) and the vibrator (175). The processor (105) is adapted ... | 08/08/2006 |
| 7081823 | System and method of predicting future behavior of a battery of end-to-end probes to anticipate and prevent computer network performance degradation A diagnostic system in which, at every point in time, a forecast is made of the future response times of each EPP (End-to-end Probe Platform) probe in a battery of probes. Thresholds are established in terms of the distribution of future EPP val... | 07/25/2006 |
| 7079038 | Method and apparatus for communication between an electronic device and a connected battery An apparatus supporting both identification of a battery type and communications over an interface between a battery and an electronic device is disclosed. The electronic device includes a processor for communicating with communications circuitry of the battery. Ide... | 07/18/2006 |
| 7038594 | Led driver current amplifier A circuit powering an electrical device based on a commanded current signal is provided. The circuit includes a linear current amplifier which sets a desired current flow. The circuit also dynamically controls a supply voltage in order to minimize power dissipation ... | 05/02/2006 |
| 7023178 | Voltage measuring apparatus The voltage measuring apparatus includes a voltage measuring unit 2 being connected to a battery 1, a voltage converting unit 3 connected to the voltage measuring unit 2, and a controller 4 which controls the operation of the volta... | 04/04/2006 |
| 7023352 | Voltage-detecting method and related circuits A voltage-detecting circuit includes a CPU, a comparator, a first resistor, a second resistor, and at least a power level segment detector connected in parallel with the first resistor, the power level segment detector having a third resistor and a first switch seri... | 04/04/2006 |
| 7015676 | Battery control apparatus There is provided a battery control apparatus that, when the battery temperature is low, repeats the charge and discharge of a battery on a short cycle such that the state of charge (SOC) of the battery lies in the range of 30 to 40% if the present SOC is less than ... | 03/21/2006 |
| 7015822 | Battery capacity and usage system A battery capacity and usage system, applied to an electric powered boat. A battery monitor is controlled by a micro-controller which includes a non-volatile memory for storing a lookup table. The lookup table comprises a database of characteristics of various batte... | 03/21/2006 |
| 7006002 | Combination power failure light and FM/AM radio with a clock and alarm function A device comprising a housing, a battery source, a transformer, a light, a radio, and a clock. The battery source is held in the housing and provides a first source of direct current (DC). The transformer, which is also held in the housing, is configured for receivi... | 02/28/2006 |
| 6977576 | Electronic access control device An electronic lock utilizes two microprocessors remote from each other for enhanced security. The first microprocessor is disposed close to an input device such as a keypad, and the second microprocessor is disposed close to the lock mechanism and well protected fro... | 12/20/2005 |
| 6969974 | Battery fuel gauge using safety circuit A safety circuit for a rechargeable cell is employed as a simple, low cost, fuel gauging circuit. The safety circuit includes an undervoltage circuit having a reference voltage. The input of the safety circuit is selectively coupled between the voltage of a recharge... | 11/29/2005 |
| 6956487 | Battery charging status indication circuit This invention includes a circuit for displaying charge status to a user. The circuit includes circuitry for comparing a supply or reference voltage to a cell voltage, circuitry for sensing charging current and circuitry for displaying at least one of three charging... | 10/18/2005 |
| 6932174 | Capacity indicating device and method thereof A capacity indicating device is configured to indicate a fully charged state when full recharging has been conducted even if the battery is degraded; hold the possible traveling distance per segment roughly constant; and make it easy to estimate the possible cruisin... | 08/23/2005 |
| 6922151 | Battery remaining amount warning circuit The battery remaining amount warning circuit can issue a battery remaining amount warning after battery power is fully used, reduce current consumption, and issue a warning at appropriate timing for various types of battery. A system controller calculates DC resista... | 07/26/2005 |
| 6888468 | Apparatus and method for protecting a battery from overdischarge A battery discharge indicator for protecting a storage battery is provided. The battery discharge indicator includes a positive connector that can couple to a positive terminal of the battery and a negative connector that can couple to a negative terminal of the bat... | 05/03/2005 |
| 6828915 | Circuit board fault warning system A fault warning system controls light sources and a warning signal to provide an indication of fatal and non-fatal faults in a communication system. The circuitry uses a pull-down circuit in electrical communication with light and signal control circuits. The circui... | 12/07/2004 |
| 6825771 | Identification system A system for identifying the relative location of devices. ... | 11/30/2004 |
| 6809649 | Method and apparatus for communication between an electronic device and a connected battery An apparatus supporting both identification of a battery type and communications over an interface between a battery and an electronic device is disclosed. The electronic device includes a processor for communicating with communications circuitry of the battery. Ide... | 10/26/2004 |
| 6791464 | Apparatus of monitoring motor vehicle's electric power and method thereof An apparatus of monitoring motor vehicle's electric power and method thereof are provided. The apparatus is disposed in the motor vehicle and includes a monitor and alarm device parallel connected to both a battery to be measured and a starting motor of the motor ve... | 09/14/2004 |
| 6724194 | Cell voltage monitor for a fuel cell stack Voltage reversal in fuel cell stacks may be detected and/or prevented by monitoring each cell or small groups of cells in the stack for low voltage conditions. An improved cell voltage monitor is constructed using a plurality of voltage monitoring units in which eac... | 04/20/2004 |
| 6646561 | Method and device for in-use detecting low cranking strength of a combustion engine battery during engine starting A method and device for in-use detecting low cranking strength of a combustion engine battery during engine starting, based on integrating changes in battery voltage specifically during engine starting, from the time the electro-mechanical starting load i... | 11/11/2003 |
| 6617972 | Table tap and monitor system using table tap An object of the invention is to provide a monitor system for detecting occurrence of abnormal situation on the elderly living alone and the like, by using an inexpensive table tap alone, without modifying an electric appliance and a plug which are curren... | 09/09/2003 |
| 6396407 | Method for displaying residual capacity of battery, battery pack and portable electric device using the method A secondary battery pack comprises a current detector for detecting charge current or discharge current of a secondary battery, a voltage detector for detecting voltage of the secondary battery, a temperature detector for measuring temperature of the seco... | 05/28/2002 |
| 6249126 | Capacity detecting circuit for a battery A capacity detecting circuit detects battery voltage and load current, compares the load current to the battery voltage to determine whether the voltage of the battery is sufficient, displays both the current and the relative capacity of the batteries, an... | 06/19/2001 |
| 6160380 | Method and apparatus of correcting battery characteristic and of estimating residual capacity of battery A method and apparatus of estimating a residual energy of a battery for an electric vehicle. A battery characteristic is corrected on the basis of a temperature correction factor and a deterioration correction factor which are obtained on the basis of the... | 12/12/2000 |
| 6144903 | Electrical fault recognition system for vehicles An electrical fault recognition control is incorporated into a vehicle. The control includes a sensor which monitors the current and voltage draw from the battery, and identifies faults in the power draw. When a fault is detected, systems which are then a... | 11/07/2000 |
| 6140928 | Remaining battery capacity measuring device A remaining battery capacity measuring device having a microprocessor and an integrated circuit is packaged together with a secondary battery to form a battery pack. The integrated circuit includes a current measuring circuit for charging and discharging ... | 10/31/2000 |
| 5963016 | Battery residual capacity measuring system and battery residual capacity measuring for electric vehicles In each time slot, along with processing collected sets of amperage data and voltage data and a data on a reference current to provide a first value as an estimated residual capacity for a normal travelling, the amperage data are processed to provide a se... | 10/05/1999 |
| 5870025 | Power-supply apparatus and its mounting-completion indication method A battery pack and a device, each including a CPU, communicate with each other. When the battery pack is mounted to the device, the CPU of the device reads a voltage V, output from dry cells built in the battery pack, from a positive terminal. The CPU sen... | 02/09/1999 |
| 5828218 | Method of estimating residual capacity of battery In estimating the residual capacity of a battery according to the maximum output estimating process, a reference point is established in advance at the intersection of a plurality of current/voltage characteristic linear curves corresponding to various re... | 10/27/1998 |
