126results about How to "Accurate sensing" patented technology

A laundry weight sensing method. A motor is consecutively turned on and off plural times, the number of pulses output from a counter electromotive force detector according to counter electromotive force of the motor when the motor is finally turned off is counted, and a laundry weight is sensed using the counted number of pulses.

The present invention relates to an apparatus and to a method for sensing a current leakage of a battery, and to a battery driving apparatus and to a battery pack including the apparatus. The apparatus for sensing a current leakage of a battery according to the present invention includes: a floating capacitor for storing voltages detected from an anode terminal or a cathode terminal of a battery; a DC voltage applying unit for applying DC voltage to the cathode terminal when the voltage detected from the cathode terminal of the battery is measured; a terminal selection switching unit for selecting a voltage detection path of the anode terminal or the cathode terminal; a charging switch unit for charging the floating capacitor with the detected voltage of the anode terminal or the cathode terminal detected from the selected voltage detection path, and separating the floating capacitor from the voltage detection path; a voltage sensing unit for sensing the detected voltage of the anode terminal or the cathode terminal of the battery charged in the separated floating capacitor; and a current leakage determination unit for calculating a leakage resistance by using the detected voltage of the anode terminal and the cathode terminal of the battery sensed by the voltage sensing unit, and determining whether or not a current leakage has occurred through the comparison of the calculated leakage resistance and a reference insulation resistance.

A motion gesture sensing module according to the present invention comprises a light sensor unit having at least two or more photo detectors for detecting light reflected from a subject and a light source that emits light, and by putting an optical block in a light receiving path of the light sensor unit so as to separate the detectable area of each light detector, the motion gesture sensing module can distinguish the motion or gesture of the subject based on an output of the light sensor unit. A motion gesture sensing method according to the present invention is a non-contact motion sensing method which enables light emitted from the light source and light reflected by the subject to be received through at least two or more light detectors and enables the motion of the subject to be distinguished by comparing the output value of each light detector, wherein the detectable area of the light detector is separated and the light reflected by the subject is received to sense the motion of the subject. The present invention provides a motion gesture sensing module of low cost, low electric power and a subminiature size. Additionally, the motion gesture sensing module and the sensing method according to the present invention can sense the relative motion or gesture of the subject, sense a space touching function such as clicking a mouse, and distinguish whether the subject is close, thereby being capable of implementing all functions that existing proximity sensors have, including proximity sensing, reading mode, and power saving functions.

A display device including a plurality of pixels (112) at a display region (500) of a first substrate (100), and an electromagnetic resonance (EMR) sensor unit (600) at one surface of the first substrate (100), the EMR sensor unit (600) including a first group of coils (610) and a second group of coils (630), the first group of coils (610) and the second group of coils (630) being laminated, wherein the EMR sensor unit (600) is beneath the plurality of pixels (112).

The water level sensing unit includes a sensing member having a sensor, the sensing member being installed at a side of the steam container, and a pivoting member having an extension adapted to pivotally rotate about a side thereof having a fixed position on the basis of the level of water. The sensor is adapted to sense positional variation of the extension, to thereby sense variation of the level of water in the steam container.

A current sensing circuit includes a power transistor, a sensing transistor M1 configured to copy a current flowing through the power transistor at a predetermined ratio, a current sensing resistor R1 configured to detect a voltage from the current copied by the sensing transistor M1, an input resistor configured to convert an input voltage VIN to a current, a cross self-biasing cascade block configured to adjust currents at both ends of the input resistor, and a common gate transistor M3 and a reference resistor R4 configured to convert a current output of the input resistor to a final sense voltage. Therefore, the invention maximizes the conversion efficiency and minimizes the lost caused by current sensing.

The invention provides an automatic cover-turning device combination, comprising a pedestal, a cover, a seat ring and an automatic cover-turning device. The cover and the seat ring can rotate relativeto the pedestal; the automatic cover-turning device is assembled below the pedestal and is used for driving the cover and the seat ring to turn; the automatic cover-turning device comprises a drivingmotor, a speed reducing device, an accommodating box, an output shaft and a mounting plate; the accommodating box is used for accommodating the speed reducing device; the output shaft is used for driving the cover to turn; the speed reducing device is connected with a rotating shaft of the driving motor; the output shaft is driven by the speed reducing device; the mounting plate is provided witha position sensing device; a rotating device with a plurality of magnets is connected with the output shaft which corresponds to the position sensing device; the rotating device is driven by the output shaft to rotate; and the position sensing device controls the deenergization of the driving motor through sensing the rotation number of the magnets, thus the opening angle position of the cover canbe fixed.