Abstract: A system and method to determine battery lifetime of a remote meter transmission unit. Disclosed methods may comprise sampling a meter transmission unit's voltage and temperature while the unit is not transmitting any data; selecting a temperature curve based on the sampled temperature of the unit from a plurality of predetermined temperature curves, wherein each predetermined temperature curve representing the battery lifetime based on the unit's sampled voltage at the unit's sampled temperature; locating a position from the selected curve based on the voltage sampled of the unit; determining the battery's electrical power consumed and remained based on the position of the curve; and determining the battery's lifetime based on the power consumed and remained. The disclosed method may be used to estimate the battery's remaining lifetime. Disclosed products may utilize the disclosed method.

Abstract: A circuit includes an input terminal, a first transistor, a second transistor, a comparator, a voltage reference circuit, and a control circuit. The first transistor includes a first terminal coupled to the input terminal. The second transistor includes a first terminal coupled to the input terminal. The comparator includes a first terminal coupled to the input terminal. The voltage reference circuit is coupled to a second terminal of the comparator. The control circuit includes an input, a first output, and a second output. The input is coupled to an output of the comparator. The first output is coupled to a second terminal of the first transistor. The second output is coupled to a second terminal of the second transistor.

Abstract: A battery device includes a first battery and a second battery connected in series. An electronic device for determining a state of charge of the battery device includes a sense resistor connected in series to the second battery, and a fuel gauge. The fuel gauge is configured to determine the state of charge of the battery device based on a first terminal voltage of the first battery, a first calculation current of the first battery, a second terminal voltage of the second battery, and a measurement current of the second battery measured through the sense resistor. The fuel gauge calculates a second calculation current of the second battery using a battery parameter of an equivalent circuit model, corrects the battery parameter when a difference between the measurement current and the second calculation current is not less than a threshold value, and calculates the first calculation current using the battery parameter or a corrected battery parameter.

Abstract: An image forming apparatus, configured to operate in first and second modes of which color gamut is different from each other, includes an exposure unit configured to expose a photosensitive drum; a developing roller configured to form a toner image; a detection unit configured to detect density of the toner image transferred to an intermediate transfer member; and a controller configured to adjust the density based on a value of input image data. A dithering process for the controller's controlling of the exposure unit is different depending on whether the operation is in the first mode or the second mode, and in at least a part of the input image data, the density of the toner image formed by the dithering process in the first mode is higher than the density of the toner image formed by the dithering process in the second mode.

Abstract: A capacitive sensor system for detecting an object. The capacitive sensing system includes a capacitive sensing pad, a conductive discriminating pad, a switch, a capacitance measurement circuit and a controller. The conductive discriminating pad is in proximity to the capacitive sensing pad. The switch includes an input terminal coupled to the discriminating pad. The switch selectively couples the discriminating pad to a voltage potential of the capacitive sensing pad or to a ground potential. The capacitance measurement circuit detects a capacitance value of the capacitive sensing pad. The controller is operable to measure the capacitance value of the capacitive sensing pad when the discriminating pad is coupled to the capacitive sensing pad voltage potential or to the ground potential.

Abstract: An embodiment of the present invention provides a test socket for a semiconductor device, comprising: a base layer having a first surface and a second surface opposite to the first surface, and having, on the second surface, an external connection pad formed at a pitch corresponding to an electrode terminal of a test board; a plurality of circuit patterns formed to be partially exposed on the surface of the base layer and rearranged at a pitch corresponding to the external connection pad; a plurality of electrode patterns formed on the first surface to be electrically connected to the circuit patterns and an external connection terminal of a semiconductor device, and arranged at a pitch corresponding to the external connection terminal; and an elastic layer covering the electrode patterns such that the electrode patterns are partially exposed.

Abstract: A powder conveying device includes: a conveying nozzle, provided with a powder receiving opening; an open/close member to open/close the powder receiving opening; a flange provided to the open/close member; a biasing member to bias the open/close member; and a container setting section to which a part of a powder container is to be fit. The powder container includes: a conveyor to convey the powder from a second end of the powder container to a first end; a container opening protruding from the first end; a nozzle receiving opening into which the conveying nozzle is to be inserted; and a butting portion provided in the container opening, to butt against the flange. When the powder container is attached to the powder conveying device, the container opening is fitted to the container setting section, and the flange and the biasing member are housed in an inner space of the container opening.

Abstract: The following relates generally to a magnetic imaging sensor configured to capture vector magnetometry data. One disclosed aspect involves: using a green pumping laser to excite nitrogen vacancy (NV) centers of a diamond crystal; and, through a filter stacked between the diamond crystal and a pixilated image sensor, passing red light caused by the excitation to the pixilated image sensor.

Abstract: An angular position sensor comprising two planar excitation coils forming a substantially circular interior area and two planar sensing coils positioned within a minor sector of the substantially circular interior area. Each of the two planar sensing coils comprises a clockwise winding portion and a counter-clockwise winding portion. The angular position sensor further comprises a substantially circular rotatable inductive coupling element positioned in overlying relation to the two planar sensing coils and separated from the two planar sensing coils by an airgap, wherein the substantially circular rotatable inductive coupling element comprises three, substantially evenly space, sector apertures.

Abstract: Systems and methods for determining battery capacity in portable electronic devices are disclosed. In one embodiment, a method for determining battery capacity in a portable electronic device may include: (1) disabling battery charging for the portable electronic device; (2) measuring a voltage and a current across terminals for a battery installed in the portable electronic device; (3) calculating a voltage offset across the battery using an estimate of an internal resistance for the battery by multiplying the current by the estimate of the internal resistance for the battery; (4) calculating an estimate of the open circuit voltage for the battery by subtracting the voltage offset across the battery calculated from the measured voltage; (5) retrieving a battery capacity based on the estimate of the open circuit voltage; (6) quantifying the battery capacity; and (7) displaying the quantified battery capacity.

Abstract: The present invention relates to the technical field of battery detection, and in particular, to a battery detection method, comprising: step S1, selecting, within a preset voltage interval, a preset number of voltage calibration values according to a rated parameter of a battery; step S2, performing charge and discharge tests on the battery, and recording a coulometer reading and a charge and discharge curve, corresponding to each voltage calibration value, of the battery; and step S3, calibrating the charge and discharge curve on the basis of the coulometer readings. The technical solution can acquire an accurate battery charge and discharge curve, is not limited by the calibration platform provided by the manufacture, can adapt to various battery models, and has high reliability and real-time performance.

Abstract: A system and method for detecting the connectivity of an absence of voltage detector to the source of power to be detected has a first terminal wire connected to a first terminal and a second terminal wire also connected to the first terminal. An RF signal is placed on the first terminal and then its presence is detected on the second signal wire. This method and system can also be placed on each phase of a three phase system.

Abstract: The present invention relates to a power circuit, which comprises a detection circuit. The detection circuit includes an abnormality detection circuit. The abnormality detection circuit is coupled to an input terminal or/and an output terminal of the power circuit. An input power is provided to the input terminal, and an output power is provided to the output terminal. The abnormality detection circuit controls the paths from a plurality of energy storage elements to the input terminal and the output terminal of the power circuit. The energy storage elements store the energy of the input power to generate the output power. The abnormality detection circuit detects the state of the input power or/and the output power, and cuts off the paths from a portion of the energy storage elements to the input terminal and the output terminal.

Abstract: A voltage on-off detector includes an inverter between a first voltage source and a third voltage source providing a third voltage and having an input terminal that receives a second voltage, a first transistor having a gate that receives the second voltage, and a first source and a first drain between the third voltage source and a first node, a second transistor having a second gate that receives the third voltage, and a second source and a second drain between a second voltage source providing the second voltage and the first node, and an amplifier configured to output a first voltage from the first voltage source or a voltage on the first node based on or in response to an output of the inverter.

Abstract: A method for updating voltage difference of battery includes presetting a relationship of voltage difference of the battery vs. state of charge of the battery, detecting a state of charge-1 of the battery, and determining a first voltage difference of the battery according to the state of charge-1 of the battery. The method further includes updating the relationship of voltage difference of the battery vs. state of charge according to the first voltage difference of the battery. A method for estimating state of charge, an electronic device, and a non-transitory storage medium are further provided.

Abstract: Provided is an electrophotographic belt that can suppress the occurrence of a cleaning failure even when used for a long time period. The electrophotographic belt includes a surface layer containing a first acrylic resin, wherein resin particles are present on an outer surface thereof, wherein the resin particles each contain a second acrylic resin and a fluorine resin, and wherein the second acrylic resin and the fluorine resin are exposed to an outer surface of each of the resin particles.

Abstract: According to one embodiment, an apparatus includes a photoconductor, an exposure device, a developing device, a toner concentration sensor, a supply motor, and a processor. The exposure device exposes the photoconductor based on image data. The developing device forms a toner image on the photoconductor with toner supplied from a toner cartridge. The toner concentration sensor detects a toner concentration in the developing device. The supply motor supplies the toner from the toner cartridge to the developing device based on the toner concentration. The processor detects a toner container supply abnormality based on a toner supply rate and a print rate of the image data, the toner supply rate being calculated based on a pixel count value that is an integrated value of pixel values of the image data and a supply motor count value that is an integrated value of drive times of the supply motor.

Abstract: A powder conveying device includes: a conveying nozzle, provided with a powder receiving opening; an open/close member to open/close the powder receiving opening; a flange provided to the open/close member; a biasing member to bias the open/close member; and a container setting section to which a part of a powder container is to be fit. The powder container includes: a conveyor to convey the powder from a second end of the powder container to a first end; a container opening protruding from the first end; a nozzle receiving opening into which the conveying nozzle is to be inserted; and a butting portion provided in the container opening, to butt against the flange. When the powder container is attached to the powder conveying device, the container opening is fitted to the container setting section, and the flange and the biasing member are housed in an inner space of the container opening.

Abstract: The present invention relates to a system and a method of measuring insulation resistance, which separate a region in which insulation resistance is positioned by installing a device performing a function equivalent to a relay on a path in which insulation resistance of an electric vehicle is measured and measure an insulation resistance value for each region, to recognize a region in which insulation resistance breakdown occurs when breakdown of insulation resistance occurs.

Abstract: Provided are a terminal device and a method for monitoring battery safety therefor. The method for monitoring battery safety includes the following. When a battery of the terminal device is in a stable state, a voltage curve of the battery is generated by acquiring in real time a voltage of the battery. A voltage drop of the battery of a preset duration is obtained according to the voltage curve. Whether the battery is abnormal is determined according to the voltage drop of the preset duration.