Matches 1 - 50 out of 98 1 2 >
Match Document Document Title
7598700 Tamper resistant battery and battery warranty and performance tracking system  
A battery warranty and metrics tracking network with a programmable battery product for storing, sending and receiving data from a battery warranty, enablement, and metrics tracking network, having...
7561059 Anti-tamper electronic obscurity using E-fuse technology  
A circuit that employs an anti-tamper sensor includes a circuit element that is responsive to a first input and to a second input. A selective coupling element couples the circuit element to the...
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...
7474228 Battery monitor  
An apparatus and method for monitoring at least one battery condition. An ac signal is applied to a battery. A difference between a signal output from the battery and a threshold determines a...
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.
7148808 System for battery alarm notification and a method for implementing same  
In an embodiment of the present invention, a clamp-on sensor is coupled at a single point of a battery string in an un-interruptible power supply. In embodiments of the present invention, the...
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 ( E nd-to-end P robe P latform) probe in a battery of probes. Thresholds are...
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...
6985084 Visual indication equipment operation  
An electrically operated equipment with a sealed enclosure containing circuitry with an exterior visual indicator to show a state of operation of the equipment. The visual indicator is illuminated...
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...
6943693 Method for informing user of available battery time based on operating mode of hybrid terminal  
Disclosed is a method for informing a user of an available battery time of a battery in a hybrid terminal based on the operating mode of the hybrid terminal. The hybrid terminal has a plurality of...
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...
6825771 Identification system  
A system for identifying the relative location of devices.
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...
6667691 Apparatus for the detection and early warning of electrical arcing fault  
A method for the early detection of faults in an electric supply system, comprising the steps of continuously checking the existence of RF transients on the electric supply system line,...
6437699 Battery capacity indication circuit and indication method thereof, and battery-operated electronic device and cellular communication terminal apparatus comprising the indication circuit  
When a remaining capacity of a battery is displayed by remaining capacity display control means, operation state discrimination function discriminates an operation state of an apparatus and also...
6262563 Method and apparatus for measuring complex admittance of cells and batteries  
A periodic time-varying current with smallest period 1/f 1 excites a cell/battery and provides a timing reference. Linear circuitry produces two signals, one proportional to the excitation...
6201318 Headlight warning system  
A headlight warning system incorporates an engine running sensor and a headlight sensor coupled to a control circuit for activating a warning device, such as a buzzer, when the headlights have been...
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...
6107985 Backlighting circuits including brownout detection circuits responsive to a current through at least one light emitting diode and related methods  
A backlighting circuit for user interface in an electronic device includes at least one light emitting diode optically coupled to the user interface wherein the at least one light emitting diode...
6051976 Method and apparatus for auditing a battery test  
A method and apparatus for auditing condition of a storage battery performs a battery test on the storage battery to obtain a test result. Test condition information is obtained related to...
5889465 Power service unit with automated dialer and other enhancements  
A power service unit suited for providing conditioned power to a consuming device at a remote location. The power service unit includes a charger/rectifier, a back-up power supply, together an...
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...
5870685 Mobile station operations management based on battery capacity  
The present invention provides a method and apparatus for controlling the operations of a battery-powered mobile station based on the capacity of its battery. In accordance with the present...
5841357 Battery electrolyte monitor  
A wet cell battery electrolyte level monitor monitors the electrolyte fluid level of individual battery cells on battery powered mobile or stationary equipment. The one piece monitor includes a...
5798702 Residual battery capacity display device for electric vehicle  
An improved battery residual capacity meter or display device which is positioned on an electrically-assisted bicycle so as to enhance the visibility thereof. In addition, the battery residual...
5767778 Event sensing circuit and alert generator  
An event sensor circuit monitors power consumption patterns of a device to determine occurrence of particular operations by the device. In response to detection of one or more particular operations...
5764034 Battery gauge for a battery operated infusion pump  
The present invention provides an estimate of the amount of time left on the battery by monitoring not only the voltage available from the battery, but also the amount of current flowing from the...
5761072 Battery state of charge sensing system  
A microprocessor samples the net effective current from a battery several times a second. A fast average current I f is calculated using an IIR filter on the net average current. A slow average...
5703469 System for determining battery conditions  
Detected values of a voltage and a current of a battery which are supplied from a voltage and current detector are stored in a memory at a plurality of times while the battery is being discharged....
5698962 Memory effect sensitive battery monitoring apparatus for electric vehicles  
A battery condition monitoring system which may be employed in an electric vehicle is disclosed. This system determines a terminal voltage of a battery under discharge of a given current and a...
5699050 Battery capacity meter  
A battery capacity meter for a battery includes a controller, a display unit for displaying a present dischargeable absolute capacity of the battery and a display light for displaying a condition...
5663629 Battery charger which detects the battery charging status  
A secondary battery is charged to a full charge state without overcharging. A current detection circuit detects a charging current state supplied to the battery to control the turn-on and the...
5656919 Accurate battery state-of-charge monitoring and indicating apparatus and method  
The apparatus and method of monitoring and/or indicating an accurate state-of-charge of a battery compensates for varying current loads and changing temperature conditions. The apparatus and method...
5642100 Method and apparatus for controlling thermal runaway in a battery backup system  
An energy management system comprising a method and an apparatus for controlling thermal runaway in a telecommunications switching station backup battery recharging system receiving current from a...
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...
5629680 Vehicle current drain tester with memory saver  
A vehicle current drain tester tests nominal current drain through a vehicle electrical system while preserving on-board vehicle memory. The tester includes a measurement current loop, an offset...
5600230 Smart battery providing programmable remaining capacity and run-time alarms based on battery-specific characteristics  
A smart battery having programmable remaining capacity and run-time alarm values based on battery-specific characteristics. A memory stores battery-specific characteristics, such as charge...
5596262 Process for monitoring the charge level of a battery, and for informing the user of the battery when the monitored charge level is no longer reliable  
The invention relates to a method of monitoring the state of charge of the battery of a hybrid vehicle, in which the charge level of the battery is determined by balancing the charge quantities...
5592095 Charge measurement circuit for a battery in which oscillators are used to indicate mode of operation  
A battery pack (10) has a charge measurement circuit (12) for estimating the state of charge during use. The charge measurement circuit (12) includes a sense resistor (24), amplifier (26), at least...
5568052 Performance monitor for electric vehicle  
A system (10) and method for monitoring usage of current immediately available from the traction batteries (12) of an electric vehicle includes a means (18) for generating a signal representative...
5545969 Battery residual capacity displaying system with discharged electrical quantity computation section  
A system for displaying the residual capacity of a secondary battery so as to update the battery capacity when the battery discharges from its full charged condition to a predetermined voltage...
5530362 Method and system for determining exams remaining in battery powered mobile x-ray devices  
A mobile x-ray unit operates from a rechargeable battery in a number of different modes which draw current from the battery. The present invention determines the number of patient exams remaining...
5483228 Safety indicating device for flashlights  
A safety disconnect device for use in detecting a gas in a confined space, such as a flashlight, comprising the use of a catalytic gas recombination material, such as palladium, in conjunction with...
5483165 Battery system and method for determining a battery condition  
This invention is a battery monitor and battery capacity indicator that uses a sense cell in addition to the main battery to determine main battery remaining capacity and depletion condition. A...
5479103 Non-linear voltage measuring implementing capacitor charging time  
The value of an unknown voltage is measured by applying a time-varying current from a reference voltage source through a resistor to a capacitor thereby to increase the voltage across the capacitor...
5444434 Extended life smoke detector  
The present invention is an improvement in battery powered smoke detectors. A smoke detector is powered by a series connection of two Li/SOCl 2 cells having a capacity of about 2 amp hours. The...
5434508 Battery capacity monitoring using consumed current as measured and through a mode table  
The residual energy of a battery can accurately be displayed in real time even in electronic equipment which has greatly variable current consumption. A calculator unit in a battery pack measures...
5426371 Automatic battery and charging system tester with motor-driven carbon pile loading  
A battery and charging system tester includes an automatically-operated carbon pile for loading the battery, the pile having a shaft therethrough rotated by a stepper motor, and a compression nut...
5406266 Residual capacity displaying device  
A residual capacity displaying device which discriminates whether or not a battery is deteriorated, and display the result of the discrimination. The residual capacity displaying device for a...
Matches 1 - 50 out of 98 1 2 >