Abstract: Disclosed are a method and apparatus for composing a plurality of images of the celestial bodies. The method and apparatus can compose a plurality of images using various pieces of information associated with the plurality of images and a time interval during the plurality of images are taken, such that objects are accurately matched with no afterimage.

Abstract: Disclosed are a method and apparatus for composing a plurality of images of the celestial bodies. The method and apparatus can compose a plurality of images using various pieces of information associated with the plurality of images and a time interval during the plurality of images are taken, such that objects are accurately matched with no afterimage.

Abstract: A processor-implemented method based on an acceleration sensor and a geomagnetic sensor for determining an angular velocity of an object includes: deriving a state variable and a variance of the state variable based on an error quaternion and converting a quaternion-based rotation matrix into an error quaternion-based rotation matrix; calculating an observation matrix and an output matrix of the Kalman filter based on the error quaternion-based rotation matrix; calculating a gain of the Kalman filter based on the transferred variance of the state variable and the observation matrix of the Kalman filter after transferring the state variable and the variance of the state variable through a discretized transfer matrix; calculating a quaternion-based on a calibrated state variable and an estimated quaternion after calibrating the state variable and the variance of the state variable through the gain of the Kalman filter; and calculating angular velocity based on the quaternion.

Abstract: A semiconductor device including a circuitry, a magnetic sensor, and a buried oxide. The circuitry is formed on a substrate. The magnetic sensor has a sensing area formed under the circuitry. The buried oxide is disposed between the circuitry and the magnetic sensor. The sensing area comprises an N-doped area and a P-doped area doped deeper than the N-doped area, and sensor contacts connect the sensing area with the circuitry through the buried oxide.

Abstract: A rotation angle detecting method includes detecting a first rotation angle based on a first measured magnetic value received from a first hall element, detecting a first magnetic value received from a second hall element corresponding to the first detected rotation angle, adjusting a gain based on a first difference value between a second measured magnetic value received from the second hall element, in response to one of the magnetic pieces being rotated at the first rotation angle, and the first magnetic value, redetecting a second rotation angle by applying the gain to the first magnetic value and redetecting a second magnetic value received from the second hall element, corresponding to the second rotation angle, and outputting the second rotation angle as a confirmed rotation angle in response to a second difference value between the second magnetic value and the second measured magnetic value becoming less than a delta value.

Abstract: A rotation angle detecting method includes detecting a first rotation angle based on a first measured magnetic value received from a first hall element, detecting a first magnetic value received from a second hall element corresponding to the first detected rotation angle, adjusting a gain based on a first difference value between a second measured magnetic value received from the second hall element, in response to one of the magnetic pieces being rotated at the first rotation angle, and the first magnetic value, redetecting a second rotation angle by applying the gain to the first magnetic value and redetecting a second magnetic value received from the second hall element, corresponding to the second rotation angle, and outputting the second rotation angle as a confirmed rotation angle in response to a second difference value between the second magnetic value and the second measured magnetic value becoming less than a delta value.

Abstract: A processor-implemented method based on an acceleration sensor and a geomagnetic sensor for determining an angular velocity of an object includes: deriving a state variable and a variance of the state variable based on an error quaternion and converting a quaternion-based rotation matrix into an error quaternion-based rotation matrix; calculating an observation matrix and an output matrix of the Kalman filter based on the error quaternion-based rotation matrix; calculating a gain of the Kalman filter based on the transferred variance of the state variable and the observation matrix of the Kalman filter after transferring the state variable and the variance of the state variable through a discretized transfer matrix; calculating a quaternion-based on a calibrated state variable and an estimated quaternion after calibrating the state variable and the variance of the state variable through the gain of the Kalman filter; and calculating angular velocity based on the quaternion.

Abstract: A semiconductor device including a circuitry, a magnetic sensor, and a buried oxide. The circuitry is formed on a substrate. The magnetic sensor has a sensing area formed under the circuitry. The buried oxide is disposed between the circuitry and the magnetic sensor. The sensing area comprises an N-doped area and a P-doped area doped deeper than the N-doped area, and sensor contacts connect the sensing area with the circuitry through the buried oxide.

Abstract: A semiconductor device including a circuitry, a magnetic sensor, and a buried oxide. The circuitry is formed on a substrate. The magnetic sensor has a sensing area formed under the circuitry. The buried oxide is disposed between the circuitry and the magnetic sensor. The sensing are comprises an N-doped area and a P-doped area doped deeper than the N-doped area, and sensor contacts connect the sensing area with the circuitry through the buried oxide.

Abstract: Provided are a sensing apparatus using a plurality of Hall sensors and an apparatus using the sensing apparatus. The sensing apparatus is configured to measure an intensity of a magnetic field with respect to a magnetic element by using a plurality of Hall sensors and to identify a body that includes the magnetic element.

Abstract: The present disclosure relates to a photo sensor module. The thickness and size of an IC chip may be reduced by manufacturing a photo sensor based on a semiconductor substrate and improving the structure to place a UV sensor on the upper section of an active device or a passive device. The photo sensor module includes a semiconductor substrate, a field oxide layer, formed on the semiconductor substrate, and a photo sensor comprising a photo diode formed on the field oxide layer.

Abstract: The present disclosure relates to a photo sensor module. The thickness and size of an IC chip may be reduced by manufacturing a photo sensor based on a semiconductor substrate and improving the structure to place a UV sensor on the upper section of an active device or a passive device. The photo sensor module includes a semiconductor substrate, a field oxide layer, formed on the semiconductor substrate, and a photo sensor comprising a photo diode formed on the field oxide layer.

Abstract: The present disclosure relates to a photo sensor module. The thickness and size of an IC chip may be reduced by manufacturing a photo sensor based on a semiconductor substrate and improving the structure to place a UV sensor on the upper section of an active device or a passive device. The photo sensor module includes a semiconductor substrate, a field oxide layer, formed on the semiconductor substrate, and a photo sensor comprising a photo diode formed on the field oxide layer.

Abstract: The present disclosure relates to a photo sensor module. The thickness and size of an IC chip may be reduced by manufacturing a photo sensor based on a semiconductor substrate and improving the structure to place a UV sensor on the upper section of an active device or a passive device. The photo sensor module includes a semiconductor substrate, a field oxide layer, formed on the semiconductor substrate, and a photo sensor comprising a photo diode formed on the field oxide layer.

Abstract: Provided are a sensing apparatus using a plurality of Hall sensors and an apparatus using the sensing apparatus. The sensing apparatus is configured to measure an intensity of a magnetic field with respect to a magnetic element by using a plurality of Hall sensors and to identify a body that includes the magnetic element.

Abstract: Provided is a magnetic field sensing device (or Hall device) including a magnetic sensor (or Hall sensor) that is provided in buried form inside of a semiconductor substrate. A top portion of the magnetic field sensing device is connected to analog and digital circuitry, and the magnetic sensor included in the magnetic field sensing device obtains magnetic data that is provided to the circuitry. Accordingly, a magnetic field sensor having a reduced size is produced.

Abstract: An on-DRAM termination resistance control circuit is capable of controlling resistance of an IC termination and minimizing area for the resistance control circuit by using a simplified circuit scheme. The on-DRAM termination resistance control circuit includes a push-up resistance adjusting unit, a pull-down resistance adjusting unit and resistance adjustment control unit. The push-up resistance adjusting unit adjusts resistances of a first and a second inner resistors based on an external reference resistor. The pull-down resistance adjusting unit adjusts a resistance of a third resistor based on the second inner resistor that is adjusted by adjustment of the push-up resistance control unit. The resistance adjustment control unit controls to alternatively repeat the operation of the push-up resistance adjusting unit and the pull-down resistance adjusting unit for a predetermined number of adjustment times.

Abstract: A test device for testing a digital to analog converter includes a gamma reference unit for generating a plurality of analog signals different from each other; a temporary storing unit for generating a plurality of digital signals different from each other; a decoder for selecting one of the plurality of analog signals or one of the plurality of digital signals in response to a digital code signal; and a switching unit for controlling a connection between the decoder and the gamma reference unit and between the decoder and the temporary storing unit according to an operation mode.

Abstract: An on-die termination circuit, which is coupled to a pad and included in a semiconductor memory device, for reducing an interference caused by a signal reflection phenomenon, includes a pull-up block coupled between an output node and a supply voltage; a pull-down block coupled between the output node and a ground; and a control block for receiving an ODT control signal to simultaneously activate the pull-up block and the pull-down block.

Abstract: A test device for testing a digital to analog converter includes a gamma reference unit for generating a plurality of analog signals different from each other; a temporary storing unit for generating a plurality of digital signals different from each other; a decoder for selecting one of the plurality of analog signals or one of the plurality of digital signals in response to a digital code signal; and a switching unit for controlling a connection between the decoder and the gamma reference unit and between the decoder and the temporary storing unit according to an operation mode.