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公开(公告)号：US10527723B2
公开(公告)日：2020-01-07
申请号：US15698662
申请日：2017-09-08
发明人： Sung Hoon Bang
摘要： An apparatus for driving an ultrasonic sensor according to an embodiment of the present invention may comprise: a driving unit for providing a transmission pulse to the ultrasonic sensor to transmit an ultrasonic wave and for receiving an ultrasonic echo for the ultrasonic wave; an amplifier for amplifying an electrical signal for the ultrasonic echo; an analog-to-digital converter for converting the amplified electrical signal into an original digital signal; a signal processing unit for performing envelope-extraction-processing on the original digital signal and generating an envelope-extraction-processed signal; and a control unit for outputting a distance between the ultrasonic sensor and an external object based on the original digital signal and the envelope-extraction-processed signal, wherein the control unit monitors a frequency or phase change of vibration of a transducer of the ultrasonic sensor based on the original digital signal at least during a second period and analyses the envelope-extraction-processed signal during at least a third period.
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公开(公告)号：US20180100921A1
公开(公告)日：2018-04-12
申请号：US15724143
申请日：2017-10-03
发明人： Sung Hoon Bang
CPC分类号： G01S15/08 , G01S15/46 , G01S15/878 , G01S15/931 , G01S2015/465 , G01S2015/932 , G01S2015/938
摘要： Provided is an ultrasonic sensor device and a sensing method. The device includes a first ultrasonic sensor that transmits an ultrasonic wave to an object in a transmission mode and receives an echo of the ultrasonic wave reflected from the object in a reception mode; at least one second ultrasonic sensor that is disposed near the first ultrasonic sensor and receives an echo of the ultrasonic wave reflected from the object; and a control unit that calculates a shortest distance signal with respect to the object by using a first distance signal outputted based on the echo received by the first ultrasonic sensor and a second distance signal outputted from the second ultrasonic sensor with the first ultrasonic sensor in the reception mode.
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3.发明授权公开(公告)号：US10756655B2
公开(公告)日：2020-08-25
申请号：US16356975
申请日：2019-03-18
发明人： Sung Hoon Bang
摘要： A method of operating a resolver management device according to the present invention includes: generating an excitation signal by using an external control signal; counting a time interval (a first delay time) to a first pole of the excitation signal based on one period of the external control signal by using an internal clock; receiving an excitation signal reflected from a resolver sensor; counting a time interval (a second delay time) to a second pole of the reflected excitation signal at the first pole by using the internal clock; and transmitting a first count value corresponding to the first delay time and a second count value corresponding to the second delay time to a microcontroller unit (MCU).
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