Patents by Inventor Hae Seung Lim
Hae Seung Lim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240045049Abstract: An object detection radar apparatus is installed in a vehicle and is configured to detect an object. The object detection radar apparatus includes a transceiver configured to transmit a radar signal to the outside of the vehicle and receive a radar signal reflected from the object; a driving environment detector configured to detect a driving environment of the vehicle based on an operation status of the vehicle; an object detector configured to detect the object based on the received radar signal; and a controller configured to determine whether or not a predetermined event occurs based on the driving environment of the vehicle or a result of the detection of the object, and control signal characteristics of the transmitted radar signal or the received radar signal when the predetermined event occurs.Type: ApplicationFiled: October 19, 2023Publication date: February 8, 2024Applicant: BITSENSING INC.Inventors: Jae Eun LEE, Hae Seung LIM
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Publication number: 20230411836Abstract: A radar includes a transmitter antenna unit including a plurality of transmitter antennas based on a first horizontal interval and a first vertical interval, a receiver antenna unit including a plurality of receiver antennas arranged based on a second horizontal interval, a transceiver configured to transmit a transmission signal through the transmitter antenna unit and receive a reflection signal reflected from a target object through the receiver antenna unit and a processing unit configured to extract information about the target object by processing the received reflection signal. The second horizontal interval is smaller than the first horizontal interval.Type: ApplicationFiled: September 1, 2023Publication date: December 21, 2023Applicant: BITSENSING INC.Inventors: Jae Eun LEE, Hae Seung LIM
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Patent number: 11828838Abstract: An object detection radar apparatus is installed in a vehicle and is configured to detect an object. The object detection radar apparatus includes a transceiver configured to transmit a radar signal to the outside of the vehicle and receive a radar signal reflected from the object; a driving environment detector configured to detect a driving environment of the vehicle based on an operation status of the vehicle; an object detector configured to detect the object based on the received radar signal; and a controller configured to determine whether or not a predetermined event occurs based on the driving environment of the vehicle or a result of the detection of the object, and control signal characteristics of the transmitted radar signal or the received radar signal when the predetermined event occurs.Type: GrantFiled: December 31, 2020Date of Patent: November 28, 2023Assignee: BITSENSING INC.Inventors: Jae Eun Lee, Hae Seung Lim
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Patent number: 11791543Abstract: A radar includes a transmitter antenna unit including a plurality of transmitter antennas arranged in a diagonal direction based on a first horizontal interval and a first vertical interval, a receiver antenna unit including a first receiver antenna group and a second receiver antenna group arranged based on the first horizontal interval, a transceiver configured to transmit a transmission signal through the transmitter antenna unit and receive a reflection signal reflected from a target object through the receiver antenna unit and a processing unit configured to extract information about the target object by processing the received reflection signal.Type: GrantFiled: December 31, 2020Date of Patent: October 17, 2023Assignee: BITSENSING INC.Inventors: Jae Eun Lee, Hae Seung Lim
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Publication number: 20220206108Abstract: An object detection radar apparatus is installed in a vehicle and is configured to detect an object. The object detection radar apparatus includes a transceiver configured to: transmit a radar signal to the outside of the vehicle based on a first mode or a second mode different from each other in terms of detection range, and receive a radar signal reflected from the object; and a processing unit configured to: detect the object based on the reflected radar signal when the first mode is activated, and recognize the object based on the reflected radar signal when the second mode is activated.Type: ApplicationFiled: December 31, 2020Publication date: June 30, 2022Applicant: BITSENSING INC.Inventors: Jae Eun LEE, Hae Seung LIM
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Publication number: 20220209396Abstract: A radar includes a transmitter antenna unit including a plurality of transmitter antennas arranged in a diagonal direction based on a first horizontal interval and a first vertical interval, a receiver antenna unit including a first receiver antenna group and a second receiver antenna group arranged based on the first horizontal interval, a transceiver configured to transmit a transmission signal through the transmitter antenna unit and receive a reflection signal reflected from a target object through the receiver antenna unit and a processing unit configured to extract information about the target object by processing the received reflection signal.Type: ApplicationFiled: December 31, 2020Publication date: June 30, 2022Applicant: BITSENSING INC.Inventors: Jae Eun LEE, Hae Seung LIM
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Publication number: 20220206135Abstract: An object detection radar apparatus is installed in a vehicle and is configured to detect an object. The object detection radar apparatus includes a transceiver configured to transmit a radar signal to the outside of the vehicle and receive a radar signal reflected from the object; a driving environment detector configured to detect a driving environment of the vehicle based on an operation status of the vehicle; an object detector configured to detect the object based on the received radar signal; and a controller configured to determine whether or not a predetermined event occurs based on the driving environment of the vehicle or a result of the detection of the object, and control signal characteristics of the transmitted radar signal or the received radar signal when the predetermined event occurs.Type: ApplicationFiled: December 31, 2020Publication date: June 30, 2022Applicant: BITSENSING INC.Inventors: Jae Eun LEE, Hae Seung LIM
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Patent number: 11309942Abstract: A radar includes a transmitter antenna unit including a plurality of transmitter antennas arranged in a diagonal direction based on a first horizontal interval and a first vertical interval, a receiver antenna unit including a first receiver antenna group and a second receiver antenna group arranged based on a second horizontal interval, a transceiver configured to transmit a transmission signal through the transmitter antenna unit and receive a reflection signal reflected from a target object through the receiver antenna unit and a processing unit configured to extract information about the target object by processing the received reflection signal.Type: GrantFiled: December 31, 2020Date of Patent: April 19, 2022Assignee: BITSENSING INC.Inventors: Jae Eun Lee, Hae Seung Lim
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Publication number: 20210326581Abstract: Extracting target information from signals of a radar and measurement environments, including: transmitting frequency-modulated continuous wave transmit signal using the radar; receiving reflected signal reflected from a human face at multiple antenna elements; multiplying the transmit signal with the reflected signal using a mixer to produce a mixed signal; passing the mixed signal through a low pass filter to produce a baseband signal including sinusoidal signals; extracting a frequency of each sinusoidal signal from the baseband signal to produce extracted frequencies; and measuring a distance between the human face and the radar using the extracted frequencies.Type: ApplicationFiled: April 13, 2021Publication date: October 21, 2021Inventors: Jae-Eun Lee, Hae-Seung Lim, Seongwook Lee
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Patent number: 10126420Abstract: Disclosed herein are an automotive radar apparatus and a method of controlling automotive radar, capable of recognizing a road gradient by easily adjusting a vertical scan angle based on intensities of radio waves received by radar of a vehicle traveling on a road to recognize a gradient of the road, and of preventing deterioration of detection performance by vertically adjusting a radio wave elevation angle of the radar so as to be suitable for the road gradient. The automotive radar apparatus includes an antenna unit transmitting radar signals or receiving reflected radar signals according to elevation angles of a transmission antenna or a receiving antenna, and a control unit searching a center angle based on received power according to the elevation angles to set a beam corresponding to the center angle as a center beam and setting ranges of interest on the basis of the center beam.Type: GrantFiled: March 18, 2015Date of Patent: November 13, 2018Assignee: MANDO CORPORATIONInventors: Jae Eun Lee, Hae Seung Lim, Seong Hee Jeong
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Patent number: 10036805Abstract: Disclosed herein are a method and apparatus for detecting a surrounding environment based on a Continuous Wave (CW) radar sensing signal and a Frequency-Modulated Continuous Wave (FMCW) radar sensing signal. A method of detecting a target based on a Frequency-Modulated Continuous Wave (FMCW) radar sensing signal and a Continuous Wave (CW) radar sensing signal may include sending, by a radar, the CW radar sensing signal for detecting the target and receiving a first response signal that is a response to the CW radar sensing signal; sending, by the radar, the FMCW radar sensing signal for detecting the target and receiving a second response signal that is a response to the FMCW radar sensing signal; generating, by the radar, the frequency spectrum of a beat signal by performing signal processing on the first response signal and the second response signal.Type: GrantFiled: June 27, 2014Date of Patent: July 31, 2018Assignee: Mando CorportaionInventors: Jae Eun Lee, Hae Seung Lim, Seong Hee Jeong
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Patent number: 9952314Abstract: Disclosed herein are a method and device for sensing a road environment based on a frequency modulated continuous wave (FMCW) radar. A method for detecting a road environment based on the FMCW radar includes the steps of: the FMCW radar performing a first scan to acquire a first frequency spectrum of beat signals, and shifting the first frequency spectrum based on first velocity information of a vehicle on performing the first scan; the FMCW radar performing a second scan to acquire a second frequency spectrum of beat signals, and shifting the second frequency spectrum based on second velocity information of the vehicle on performing the second scan; acquiring correlation information between the shifted first frequency spectrum and the shifted second frequency spectrum; and comparing the correlation information with a set threshold value and detecting the road environment.Type: GrantFiled: June 26, 2014Date of Patent: April 24, 2018Assignee: MANDO CORPORATIONInventors: Jae Eun Lee, Hae Seung Lim, Seong Hee Jeong
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Patent number: 9746546Abstract: Disclosed herein are a method and device for sensing a surrounding environment based on a frequency modulated continuous wave (FMCW) radar. The method for detecting a target based on an FMCW radar includes the steps of: the FMCW radar transmitting a sensing signal for detection of the target, and receiving a response signal in response to the sensing signal; the FMCW radar performing a signal processing on the response signal, and generating a frequency spectrum of a beat signal; the FMCW radar determining a detection frequency band for detection of the target within a valid frequency band of the frequency spectrum; the FMCW radar determining a threshold value to determine a target detection peak value for detection of the target among peak values of the frequency spectrum; and the FMCW radar detecting the target based on the detection frequency band and the threshold value.Type: GrantFiled: June 27, 2014Date of Patent: August 29, 2017Assignee: MANDO CORPORATIONInventors: Jae Eun Lee, Hae Seung Lim, Seong Hee Jeong
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Publication number: 20160274231Abstract: Disclosed herein are an automotive radar apparatus and a method of controlling automotive radar, capable of recognizing a road gradient by easily adjusting a vertical scan angle based on intensities of radio waves received by radar of a vehicle traveling on a road to recognize a gradient of the road, and of preventing deterioration of detection performance by vertically adjusting a radio wave elevation angle of the radar so as to be suitable for the road gradient. The automotive radar apparatus includes an antenna unit transmitting radar signals or receiving reflected radar signals according to elevation angles of a transmission antenna or a receiving antenna, and a control unit searching a center angle based on received power according to the elevation angles to set a beam corresponding to the center angle as a center beam and setting ranges of interest on the basis of the center beam.Type: ApplicationFiled: March 18, 2015Publication date: September 22, 2016Inventors: Jae Eun LEE, Hae Seung LIM, Seong Hee JEONG
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Publication number: 20150323649Abstract: Disclosed herein are a method and device for sensing a surrounding environment based on a frequency modulated continuous wave (FMCW) radar. The method for detecting a target based on an FMCW radar includes the steps of: the FMCW radar transmitting a sensing signal for detection of the target, and receiving a response signal in response to the sensing signal; the FMCW radar performing a signal processing on the response signal, and generating a frequency spectrum of a beat signal; the FMCW radar determining a detection frequency band for detection of the target within a valid frequency band of the frequency spectrum; the FMCW radar determining a threshold value to determine a target detection peak value for detection of the target among peak values of the frequency spectrum; and the FMCW radar detecting the target based on the detection frequency band and the threshold value.Type: ApplicationFiled: June 27, 2014Publication date: November 12, 2015Inventors: Jae Eun LEE, Hae Seung LIM, Seong Hee JEONG
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Publication number: 20150168547Abstract: Disclosed herein are a method and device for sensing a road environment based on a frequency modulated continuous wave (FMCW) radar. A method for detecting a road environment based on the FMCW radar includes the steps of: the FMCW radar performing a first scan to acquire a first frequency spectrum of beat signals, and shifting the first frequency spectrum based on first velocity information of a vehicle on performing the first scan; the FMCW radar performing a second scan to acquire a second frequency spectrum of beat signals, and shifting the second frequency spectrum based on second velocity information of the vehicle on performing the second scan; acquiring correlation information between the shifted first frequency spectrum and the shifted second frequency spectrum; and comparing the correlation information with a set threshold value and detecting the road environment.Type: ApplicationFiled: June 26, 2014Publication date: June 18, 2015Inventors: Jae Eun LEE, Hae Seung LIM, Seong Hee JEONG
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Publication number: 20150153447Abstract: Disclosed herein are a method and apparatus for detecting a surrounding environment based on a Continuous Wave (CW) radar sensing signal and a Frequency-Modulated Continuous Wave (FMCW) radar sensing signal. A method of detecting a target based on a Frequency-Modulated Continuous Wave (FMCW) radar sensing signal and a Continuous Wave (CW) radar sensing signal may include sending, by a radar, the CW radar sensing signal for detecting the target and receiving a first response signal that is a response to the CW radar sensing signal; sending, by the radar, the FMCW radar sensing signal for detecting the target and receiving a second response signal that is a response to the FMCW radar sensing signal; generating, by the radar, the frequency spectrum of a beat signal by performing signal processing on the first response signal and the second response signal.Type: ApplicationFiled: June 27, 2014Publication date: June 4, 2015Inventors: Jae Eun Lee, Hae Seung Lim, Seong Hee Jeong