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Document Title |
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7536572 |
Power sharing between portable computer system and peripheral devices
A method and apparatus that allows for controlling operating time of a portable computer system and a peripheral device. A portable computing system that includes a rechargeable power supply and...
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7509193 |
Method and device for limiting the driving speed of a motor vehicle
A method and a device are provided for limiting the driving speed of a motor vehicle that allow a selectable, fixed fuel consumption per distance traveled to be maintained without limiting...
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7482941 |
Physical key to facilitate an inactive mode for a state-of-charge indicator within a battery
The invention provides a system and battery including a state-of-charge indicator (SOCI) to monitor and display the amount of charge within the battery. The SOCI is capable of operating in a...
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7474103 |
Storage medium having game program stored thereon and game apparatus
At least one of continuous disconnection, intermittent disconnection, and temporary disconnection, of wireless communication between the input device and the game apparatus is detected. Remaining...
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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...
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7375497 |
State of charge tracking system for battery systems
A battery control module for a battery system comprises a voltage measuring module that measures battery and a current measuring module that measures battery current. A state of charge (SOC) module...
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7236346 |
Semiconductor apparatus and method of charging desired number of capacitors
A capacitor charging semiconductor apparatus including a plurality of serially connected capacitors to be charged. A direct current source is applied to the plurality of capacitors. A plurality of...
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7196523 |
Battery charge/discharge monitoring circuit and method
A circuit for monitoring charge/discharge of a battery is disclosed. The circuit may comprise first and second terminal capacitors disposed for first and second terminals of a current detection...
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7193421 |
Method and device for determining the state of a vehicle battery
A method and a device for determining the state of a vehicle battery in which the battery voltage is measured and information regarding the state of the vehicle battery is derived from the measured...
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7161486 |
Electrostatic sensors
A sensor 10 comprises an array of electrostatic sensor elements 12, each centred at a respective sensing position 14. Each element produces a respective output signal at 16. The outputs 16...
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7148655 |
Electronic equipment, display control method, recording medium and program
A communication portion of a video camera receives expected power information of a printer from the printer, and also receives battery power information from a battery pack. When a microcomputer...
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7136762 |
System for calculating remaining capacity of energy storage device
The remaining capacity of a battery obtained by integrating current and that obtained from the estimated open circuit voltage of the battery are weighted with a weight which varies depending on the...
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7064552 |
Device for determining the energy state of an energy storing device of a mobile data carrier
A device ( 8 ) for determining the energy state of an energy storing device ( 7 ) of a data carrier ( 4 ) in which a voltage stabilizer ( 9 ) is used to derive a stabilized DC voltage for the...
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6996734 |
System and method for using a legacy battery in an information handling system using a table having actual and translated remaining capacity values
An information handling system that includes a processor, a memory, a program, a battery, and a module. The module receives a request for first information associated with the battery from the...
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6940416 |
Low voltage testing and illuminating device
This invention relates to a limited range low voltage testing, regulating, and indicating device comprising a detector and low voltage measurer of magnitude in a switch-regulated power supply...
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6891355 |
Method for computing an amount of energy taken from a battery
A method to compute an amount of energy taken from a battery coupled to a switching power converter is disclosed. The switching power converter charges a capacitor to a voltage and by the...
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6789026 |
Circuit and method for monitoring battery state of charge
A processor ( 13 ) operates to determine amount of charge presently stored in a battery by determining that the battery is in a zero-current relaxed condition. Circuitry ( 16,23 ) including a first...
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6703811 |
Apparatus and method for managing battery recharging and discharging and recharging operations
A battery capacity recovery apparatus performs discharging and/or recharging operations to increase the useful life of a battery. In one embodiment, the apparatus includes a control unit and a...
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6693577 |
Integration type A/D conversion method, integration type A/D converter, and battery charger utilizing such converter
In the invention, an integrator integrates a current indicative of an input signal to generate at its output end a voltage (referred to as integral output voltage) by means of a condenser. At a...
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6680615 |
Method and device for checking the charge state of a battery, in particular a rechargeable battery for a cellular mobile telephone
The amount of charge passing through a measurement resistor connected to a rechargeable battery is measured by integrating in an analog manner an overall current. This overall current is equal to...
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6661202 |
Degradation degree computing method and unit for battery
A base resistance of the battery is obtained by cyclically measuring a discharge current and a voltage between a pair of terminals of the battery, while a rush current is flowing in an electric...
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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...
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6639407 |
Charging/discharging electrical energy indication apparatus and electrical energy calculation method for use in the apparatus
A charging/discharging electrical energy indication apparatus and electrical energy calculation method in which charging/discharging current and end voltage of the battery are sampled at a fixed...
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6577135 |
Battery pack with monitoring function utilizing association with a battery charging system
A battery detect circuit ( 32 ) is provided that is operable to dispose a sense resistor ( 50 ) in series with the battery to determine whether the charge is being provided to the battery or being...
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6522148 |
State of charge measuring apparatus for battery device
A state of charge (SOC) measuring apparatus for a battery device is provided capable of detecting accurate state of charge based on integrating charge and discharge current. The state of charge...
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6507194 |
Method of calculating remaining battery capacity
The method of calculating remaining battery capacity specifies battery discharge efficiency with discharge rate and/or temperature as parameters, and calculates remaining battery capacity from...
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6437575 |
Low-voltage detecting circuit
A low-voltage detecting circuit for power sources is based upon the relation of the discharge time of a capacitor and the measured voltage value to determine whether the voltage level of the power...
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6359419 |
Quasi-adaptive method for determining a battery's state of charge
A method and apparatus for determining the state of charge of a battery including determining a current-based state of charge measurement based on coulomb integration, determining a voltage-based...
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6339315 |
Measuring counter of the state of charge of the powering battery of an electronic appliance
A charge counter for monitoring the charge of the battery state of an electronic device includes a sensing circuit of the charge and discharge current of the battery. The sensing circuit includes a...
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6313606 |
Method and apparatus for detecting battery capacity
A method and apparatus for detecting the capacity of a battery wherein a voltage method of measuring the voltage of the battery, to calculate the capacity of the battery based on the correlation...
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6285191 |
Measurement of current in a vehicle using battery cable as a shunt
Current flowing into and out of a battery installed in a vehicle (V) with the required cable between one of the battery terminals and a reference point on the vehicle is determined by measuring the...
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6233535 |
Electric shaver or apparatus cooperating therewith and data-evaluation arrangement
The invention is directed to an electric shaver or an apparatus cooperating with the shaver, with a microcontroller which operates to obtain information about the use history of the shaver or the...
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6211653 |
Method and apparatus for measuring the state-of-charge of a battery
An apparatus 10 for measuring the state-of-charge of a battery 14. Apparatus 10 includes a shunt resistor 18, a pair of capacitors 64, 66, and a controller 20. Controller 20 selectively and...
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6201397 |
Device for measuring and displaying the operating autonomy of a storage battery
A device for measuring and displaying the operating autonomy of a storage battery comprises an electric signal sensor for providing an electric signal indicative of the power drained from the...
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6191590 |
Device and a process for monitoring the state of charge of a battery
A device and method for determining the state of charge of a battery includes a microprocessor-controlled arithmetic unit connected in parallel to the terminal voltage of the battery. The...
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6094052 |
Survivor capacity measuring apparatus for a battery
A survivor capacity measuring apparatus for a battery is presented. The apparatus is constructed so as to determine whether or not the battery is deteriorated and indicates the result of this...
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6057688 |
Residual capacity detecting apparatus for an electric vehicle's battery and a related residual capacity measuring method
A reduction in the discharge voltage, caused due to a memory effect of a battery, is checked during a discharge operation. An initial discharge characteristic curve, representing an initial...
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6054861 |
Apparatus for monitoring power of battery to supply electric power to load
A micro discharge detection current which is obtained by reducing a discharge current of a battery at a predetermined ratio is detected by a current amplifying circuit and an integration voltage...
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6049210 |
Device for displaying remaining battery capacity
A device for displaying the remaining capacity of a rechargeable battery is provided. The device includes a current sensing resistor connected between an external power source and the rechargeable...
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5998971 |
Apparatus and method for coulometric metering of battery state of charge
The apparatus for metering the state of charge of a battery has a battery current sensor providing a voltage signal dependent on a current flowing into or out of the battery, an integrator for...
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5973497 |
Method of determining and displaying battery charge status
A method of determining and displaying the charge status of a storage battery of a battery-operated appliance, such as a razor. A time-based charge status is calculated, based at least in part on...
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5955869 |
Battery pack and a method for monitoring remaining capacity of a battery pack
A battery pack and a method of monitoring remaining capacity of a battery pack. With this method, two different procedures are used to estimate that remaining capacity. In a first procedure, data...
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5862515 |
Battery tester
A battery tester is formed at an AC constant-current generator for applying an AC current for measurement to a battery BT under test via a coupling capacitor, an internal resistance detecting...
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5808469 |
Battery monitor for electric vehicles
A battery monitor for monitoring the voltage and temperature of the batteries associated with a battery pack of an electric vehicle. The battery monitor includes an opto-isolator that electrically...
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5798934 |
Battery remaining capacity measuring device
A current/voltage detecting section detects current flowing through a load and terminals voltage of a battery. A correlation determining section obtains the correlation coefficient between a...
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5789924 |
Method of calculating rechargeable battery charge capacity
The method of calculating rechargeable battery charge capacity of this invention has steps to temporarily interrupt charging and calculate battery internal impedance, to calculate a no-load battery...
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5691078 |
Remaining battery capacity meter and method for computing remaining capacity
An inexpensive, high precision accumulation type remaining battery capacity meter and method are provided, whereby the remaining capacity of the battery is determined by computing an accumulated...
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5672951 |
Determination and control of battery state
A technique for measuring battery characteristics comprises measuring a battery terminal voltage, a charge/discharge current and a charge/discharge time. The technique entails arithmetically...
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5648717 |
Battery charge gauge with current integrator and method for guaging battery charge
A method for gauging battery charge in which current flowing from a battery (11) is integrated (25) and a charge counter counts charge. Voltage (Vb) across the battery is measured (16) and compared...
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5640150 |
Resettable state-of-charge indicator for rechargeable batteries
An improved state-of-charge indicator for a battery wherein the counter cuit of the battery state-of-charge indicator includes a means for both resetting and fine-tuning the counter circuit. The...
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