Patents by Inventor Joo Ho Park
Joo Ho Park 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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Patent number: 11973584Abstract: This application relates to a noise signal generating apparatus. In one aspect, the apparatus includes a bandwidth expansion unit configured to generate a noise signal having a second bandwidth by expanding a noise source signal having a first bandwidth to the second bandwidth that is greater than the first bandwidth. The apparatus may also include a randomization unit configured to perform randomization and output the generated noise signal having the second bandwidth.Type: GrantFiled: July 15, 2021Date of Patent: April 30, 2024Assignee: Agency for Defense DevelopmentInventors: Jaewon Chang, Jeong Ho Ryu, Joo Rae Park, Young Ju Park, Byeong Nam Lee
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Publication number: 20240128915Abstract: Disclosed is a motor driving apparatus including: a motor; an inverter including a switching element for driving the motor; a controller for controlling the switching element; a resolver including an excitation winding and a detection winding; and a resolver chip applying an excitation signal to the excitation winding by inputting a periodic signal from the controller, and receiving a feedback signal from the detection winding, wherein the resolver chip determines the number of rotations of the motor based on a change in a pulse width of a detection signal resulting from a comparison between a voltage of the feedback signal and a preset voltage, and output a signal to the inverter for setting an inertial driving control mode according to the number of rotations of the motor in a failure state of the controller.Type: ApplicationFiled: October 17, 2023Publication date: April 18, 2024Applicant: HYUNDAI MOBIS CO., LTD.Inventors: Tae Hwan KANG, Hyung Min PARK, Joo Won PARK, Beom Cheol CHO, Yun Ho CHOI, Yeon Ho KIM, Won Hee JO
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Patent number: 11961301Abstract: Disclosed herein are image-based object recognition method and system by and in which a learning server performs image-based object recognition based on the learning of environment variable data. The image-based object recognition method includes: receiving an image acquired through at least one camera, and segmenting the image on a per-frame basis; primarily learning labeling results for one or more objects in the image segmented on a per-frame basis; performing primary reasoning by performing object detection in the image through a model obtained as a result of the primary learning; performing data labeling based on the results of the primary reasoning, and performing secondary learning with weights allocated to respective boxes obtained by the primary reasoning and estimated as object regions; and finally detecting one or more objects in the image through a model generated as a result of the secondary learning.Type: GrantFiled: July 24, 2023Date of Patent: April 16, 2024Assignee: SMARTINSIDE AI INC.Inventors: Dai Quoc Tran, Yun Tae Jeon, Tae Heon Kim, Min Soo Park, Joo Ho Shin, Seung Hee Park
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Patent number: 11962208Abstract: Proposed is an air gap adjustment apparatus. The apparatus is for enabling an air gap between the inner surface of a stator and the outer surface of a rotor, which are installed in an inner space of a housing, to be uniform overall. A plurality of fastening holes are formed so as to surround a shaft through hole of an end plate constituting the housing. A fastener, which has passed through a bearing housing of a bearing, is fastened to each fastening hole so as to mount the bearing to the end plate. An adjusting member body of an adjusting member, which has passed through the bearing housing, is positioned in an adjusting member seating part which is formed at the entrance of each fastening hole. The adjusting member rotates about the adjusting member body so that a head part may adjust the position of the bearing.Type: GrantFiled: January 28, 2021Date of Patent: April 16, 2024Assignee: HYOSUNG HEAVY INDUSTRIES CORPORATIONInventors: Chul Jun Park, Sang Deok Kim, Seung Ki Kim, Yoon Zong Kim, Kyo Ho Lee, Kwang Jin Kim, Joo Seob Kim, Bit Na Oh
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Patent number: 11928813Abstract: Disclosed herein is a method for an image analysis server to detect a change to a structure by using a drone. The method for an image analysis server to detect a change to a structure by using a drone includes: receiving images of a specific inspection target structure taken at different time points by a drone; detecting the difference between an image taken at a first time point and an image taken at a second time point based on the received images; and detecting a change to the inspection target structure via the detected difference, and generating a risk signal and then transmitting it to an administrator terminal.Type: GrantFiled: November 24, 2022Date of Patent: March 12, 2024Assignee: SMARTINSIDE AI INC.Inventors: Joo Ho Shin, Seung Hee Park
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Publication number: 20240078810Abstract: Disclosed herein are image-based object recognition method and system by and in which a learning server performs image-based object recognition based on the learning of environment variable data. The image-based object recognition method includes: receiving an image acquired through at least one camera, and segmenting the image on a per-frame basis; primarily learning labeling results for one or more objects in the image segmented on a per-frame basis; performing primary reasoning by performing object detection in the image through a model obtained as a result of the primary learning; performing data labeling based on the results of the primary reasoning, and performing secondary learning with weights allocated to respective boxes obtained by the primary reasoning and estimated as object regions; and finally detecting one or more objects in the image through a model generated as a result of the secondary learning.Type: ApplicationFiled: July 24, 2023Publication date: March 7, 2024Applicant: SMARTINSIDE AI Inc.Inventors: Dai Quoc TRAN, Yun Tae JEON, Tae Heon KIM, Min Soo PARK, Joo Ho SHIN, Seung Hee PARK
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Publication number: 20240069524Abstract: Disclosed is an apparatus for excitation signal generation for a resolver. The apparatus includes a sine wave generator that generates a sine wave based on a square wave, an amplifier that amplifies the sine wave, a differential signal generator that converts, into a differential signal, the amplified sine wave, a driver that inputs the differential signal to a coil, and a processor that generates an excitation signal by increasing a voltage of the sine wave from a start voltage to a target voltage through at least one of the sine wave generator and the amplifier based on a transient current that flows into the coil in a transient response interval.Type: ApplicationFiled: December 27, 2022Publication date: February 29, 2024Applicant: HYUNDAI MOBIS CO., LTD.Inventors: Yun Ho CHOI, Hyung Min PARK, Joo Won PARK, Yeon Ho KIM, Won Hee JO, Tae Hwan KANG, Beom Cheol CHO
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Publication number: 20240067918Abstract: The present invention relates to an apparatus for determining a cell culturing condition and a method of operating the same. The method includes acquiring a first quality attribute and a first influence variable at a first point in time from a cell culture medium, acquiring a first injection variable, applying at least one of the first quality attribute, the first influence variable, and the first injection variable to a culture simulation model and acquiring a second quality attribute and a second influence variable at a second point in time, and selectively changing the first injection variables so that the second quality attribute meets a predetermined condition.Type: ApplicationFiled: November 7, 2023Publication date: February 29, 2024Applicant: PRESTIGE BIOLOGICS CO., LTD.Inventors: Jeong Hoon PARK, Jae Ho SHIM, Joo Yang PARK
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Patent number: 11135953Abstract: A seatback frame for a vehicle is capable of preventing a passenger seated on a seat from being injured by a sharp edge of a side frame in the event of a collision of the vehicle. The seatback frame includes side frames installed to extend longitudinally in a vertical direction at opposite sides of the seatback frame, respectively, an upper frame joined to the side frames, and a lower frame joined to the side frames. Protrusions are formed at a surface of the upper frame while being spaced apart, by a predetermined distance, from edges present at edge portions of the side frames, respectively, to prevent the passenger from being injured by the edges.Type: GrantFiled: November 19, 2019Date of Patent: October 5, 2021Assignees: Hyundai Motor Company, Kia Motors Corporation, Hyundai Transys Inc.Inventors: Ju Yeol Kong, Gil Ju Kim, Jung Sang You, Ju Hyun Cha, Tae Hee Won, Seon Chae Na, Chan Ho Jung, Jin Ho Seo, Sung Young Lee, Man Seock Kim, Joo Ho Park, Dong Jin Kim
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Publication number: 20200406799Abstract: A seatback frame for a vehicle is capable of preventing a passenger seated on a seat from being injured by a sharp edge of a side frame in the event of a collision of the vehicle. The seatback frame includes side frames installed to extend longitudinally in a vertical direction at opposite sides of the seatback frame, respectively, an upper frame joined to the side frames, and a lower frame joined to the side frames. Protrusions are formed at a surface of the upper frame while being spaced apart, by a predetermined distance, from edges present at edge portions of the side frames, respectively, to prevent the passenger from being injured by the edges.Type: ApplicationFiled: November 19, 2019Publication date: December 31, 2020Inventors: Ju Yeol Kong, Gil Ju Kim, Jung Sang You, Ju Hyun Cha, Tae Hee Won, Seon Chae Na, Chan Ho Jung, Jin Ho Seo, Sung Young Lee, Man Seock Kim, Joo Ho Park, Dong Jin Kim
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Patent number: 9059804Abstract: Disclosed herein is a high speed optical transceiver module, which makes it possible to prevent a wavelength shift and thus to achieve low power and high efficiency by forming a hole with a predetermined depth in a stem heat sink for dissipating heat generated in an LD through a lower portion of a stem and putting a micro heater in the hole, thereby compensating for the temperature of the LD in order to prevent wavelength shift caused by the influence of the ambient temperature on an LD chip in a transistor outline (TO) when an un-cooled optical transceiver module is driven at low temperature and to prevent the communication from being impossible when the ambient temperature is lowered during the communication using a CWDM scheme.Type: GrantFiled: November 30, 2012Date of Patent: June 16, 2015Assignee: OE Solutions Co., Ltd.Inventors: Sang Ho Lee, Suk Han Yun, Tae Kyun Kim, Joo Ho Park
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Publication number: 20140037293Abstract: Disclosed herein is a high speed optical transceiver module, which makes it possible to prevent a wavelength shift and thus to achieve low power and high efficiency by forming a hole with a predetermined depth in a stem heat sink for dissipating heat generated in an LD through a lower portion of a stem and putting a micro heater in the hole, thereby compensating for the temperature of the LD in order to prevent wavelength shift caused by the influence of the ambient temperature on an LD chip in a transistor outline (TO) when an un-cooled optical transceiver module is driven at low temperature and to prevent the communication from being impossible when the ambient temperature is lowered during the communication using a CWDM scheme.Type: ApplicationFiled: November 30, 2012Publication date: February 6, 2014Applicant: OE Solutions Co., Ltd.Inventors: Sang Ho LEE, Suk Han YUN, Tae Kyun KIM, Joo Ho PARK
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Patent number: 8279898Abstract: Provided is a distance and position measuring method. A distance measuring method based on packets transmitted and received between a first node and a second node obtains first timing for transmitting a first packet from the first node, second timing for receiving the first packet in the second node, third timing for transmitting a second packet corresponding to the first packet from the second node, fourth timing for receiving the second packet in the first node, fifth timing for transmitting a third packet from the second node, and sixth timing for receiving the third packet in the first node to estimate a clock frequency offset based on the obtained timings, measures a first distance and a second distance based on the clock frequency offset and some of the timings, and measures a distance between the first node and the second node based on the first distance and the second distance.Type: GrantFiled: August 28, 2009Date of Patent: October 2, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Mi Kyung Oh, Hong Soon Nam, Jae Young Kim, Joo Ho Park, Hyung Soo Lee
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Publication number: 20100277357Abstract: Provided is an analog-to-digital converter. The analog-to-digital converter includes a resistor string for generating a plurality of reference voltages; a plurality of differential difference amplifiers for detecting zero-crossing points according to interpolation by using the plurality of reference voltages and input signals; and a plurality of comparators for receiving outputs of the plurality of differential difference amplifiers, detecting zero-crossing points according to 4X interpolation, and generating a digital code corresponding to the input signals.Type: ApplicationFiled: April 18, 2008Publication date: November 4, 2010Inventors: Young-Joon Ko, Mi-Kyung Oh, Joo-Ho Park, Jae-Young Kim, Kwang-Roh Park, Suk-Ki Kim, Yun-Jeong Kim
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Publication number: 20100272150Abstract: A receiving apparatus of an ultra-wideband wireless system includes an analog-to-digital converter for sampling an analog signal into a digital signal, a serial-to-parallel converter for converting serial data input to the analog-to-digital converter into M:N parallel data, a matched filter bank unit for match-filtering the N parallel data, a cross-correlator bank unit for cross-correlating an output of the matched filter bank unit with a ternary code, a preamble boundary detecting unit for receiving an output signal of the cross-correlator bank unit to detect a starting boundary of a ternary code, a multi-path profile calculating unit for receiving an output signal of the cross-correlator bank unit to calculate multi-path phase and amplitude variation, a despreading unit for despreading an output of the matched-filter bank unit using a spreading code, and a data demodulating unit for receiving the despread value to determine a position and phase of a pulse.Type: ApplicationFiled: July 11, 2008Publication date: October 28, 2010Inventors: Min Su Kil, Jae Young Kim, Joo Ho Park
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Publication number: 20100220774Abstract: Provided are an ultra wideband (UWB) system and a method for operating the same. The UWB system includes a baseband unit for modulating/demodulating an impulse data signal and generating a power management control signal using burst hopping information, and an RF transmitting/receiving unit for transmitting/receiving a wireless signal and alternating between power-on/off states according to the power management control signal generated from the baseband unit. The UWB system can reduce power consumption by applying power source to the RF transmitting/receiving unit only at a time interval in which an impulse signal having a short time period and constituting transmitting/receiving data exists.Type: ApplicationFiled: July 11, 2008Publication date: September 2, 2010Inventors: Joo Ho Park, Mi Kyung Oh, Young Joon Ko, Jae Young Kim
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Publication number: 20100157810Abstract: Provided is a distance and position measuring method. A distance measuring method based on packets transmitted and received between a first node and a second node obtains first timing for transmitting a first packet from the first node, second timing for receiving the first packet in the second node, third timing for transmitting a second packet corresponding to the first packet from the second node, fourth timing for receiving the second packet in the first node, fifth timing for transmitting a third packet from the second node, and sixth timing for receiving the third packet in the first node to estimate a clock frequency offset based on the obtained timings, measures a first distance and a second distance based on the clock frequency offset and some of the timings, and measures a distance between the first node and the second node based on the first distance and the second distance.Type: ApplicationFiled: August 28, 2009Publication date: June 24, 2010Inventors: Mi Kyung OH, Hong Soon NAM, Jae Young KIM, Joo Ho PARK, Hyung Soo LEE
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Publication number: 20100150219Abstract: The exemplary embodiment of present invention provides a sampling device and method in a wireless communication system that is capable of precisely measuring a distance by combining data blocks passing through at least two delay paths and performing sampling thereon. To this end, the sampling device includes: a delayer that delays received signals in a block unit; a delay path selector that selects any one of a plurality of delay paths to control the delayer to apply the selected delay path to each block; a sampler that performs sampling for each block delayed by the delayer; a signal processor that combines at least two sampling blocks sampled by the sampler; and a timing tracker that tracks reception timing of the combined signal, wherein the delayer includes at least two selectable delay paths.Type: ApplicationFiled: August 28, 2009Publication date: June 17, 2010Inventors: Mi-Kyung Oh, Joo Ho Park, Jung-yeol Oh, Min Su Kil, Jae Young Kim
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Publication number: 20100135448Abstract: Provided are a reference synchronization signal sharing apparatus and a method thereof. The reference synchronization signal sharing apparatus according to the present invention includes a reference signal generator that generates an internal or external reference synchronization signal, and a system clock generator that generates a common system clock for detailed blocks of a wireless communication system in synchronization with the internal or external reference synchronization signal.Type: ApplicationFiled: December 2, 2009Publication date: June 3, 2010Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Joo Ho PARK, Jae Young KIM
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Publication number: 20100046599Abstract: Provided is an apparatus and method for acquiring an initial coefficient of a DFE using an FFT.Type: ApplicationFiled: October 16, 2007Publication date: February 25, 2010Inventors: Dong-Kyoo Kim, Joo-Ho Park, Kwang-Roh Park, Young-Jin Kang, Jae-Young Kim