Patents by Inventor Sang-Hyun Chang

Sang-Hyun Chang 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).

  • Publication number: 20190350184
    Abstract: An adhesive-type insect trap includes a body having a hole for insertion of an adhesive sheet; a light source mounting unit disposed on the body; and a cover which is detachably mounted on the body and has a through-hole in at least a part thereof. The body further includes a light source seating unit provided so as to correspond to the light source mounting unit, and a light source may have one side thereof mounted on the light source mounting unit and the other side thereof seated on the light source seating unit.
    Type: Application
    Filed: January 8, 2018
    Publication date: November 21, 2019
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Sang Hyun CHANG, Hoon Sik EOM, Si Ho YU, Gwang Ryong LEE, Chung Hoon LEE, Sung Il PARK
  • Patent number: 10353048
    Abstract: The present disclosure relates to a sensor network, Machine Type Communication (MTC), Machine-to-Machine (M2M) communication, and technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the above technologies, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Embodiments of the present invention provide a device and a method for estimating a position between wireless apparatuses using a signal transmitted and received between wireless apparatuses in a wireless communication system. A device of a first wireless apparatus for estimating a position comprises: a transceiver for transmitting and receiving a signal to and from a second wireless apparatus; and a position estimator for estimating a position of the second wireless apparatus using a signal transmitted and received through the transceiver.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: July 16, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Ho Oh, Jung-Min Yoon, Sang-Hyun Chang, Sung-Rok Yoon, Ohyun Jo, Chang-Yeul Kwon, Kil-Sik Ha
  • Publication number: 20190204437
    Abstract: A code reading method and a radar system using a short-range millimeter wave (mmWave) radar are provided. The method includes transmitting a mmWave radar signal to a target object from a radar system and receiving a reflection wave signal reflected on the target object, extracting reflection signal strengths for a plurality of line codes constituting the target object from the reflection wave signal, compensating for the reflection signal strengths considering a difference in antenna gain between the plurality of line codes as per an antenna radiation pattern of the radar system, forming a radar image using the compensated reflection signal strengths, and reading a binary code from the radar image.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    Inventors: Joo-Sung PARK, Ki-Taek BAE, Dae-Hyun KIM, Seung-Ku HAN, Tae-Sik YANG, Sang-Hyun CHANG
  • Patent number: 10291305
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present invention relates to a method and an apparatus in a communication system. A method of a network node in the communication system comprises the steps of: measuring at least one factor value indicating channel link performance of a channel link between the network node and another network node; identifying a beamforming training scheme based on the at least one factor value; and performing beamforming training with the another network node by means of the selected beamforming training method, thereby finding an optimal beam for maintaining services through the most efficient method according to a channel state and minimizing the time consumed for beamforming training.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: May 14, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ohyun Jo, Chang-Yeul Kwon, Jae-Hwa Kim, Dong-Hwi Roh, Hyun-Moo Kim, Dong-Hyuck Park, Jong-Ho Oh, Sung-Rok Yoon, Seok-Yong Lee, Sang-Hyun Chang, Do-Young Jung
  • Publication number: 20190133106
    Abstract: An insect trap including a main body having a suction fan, a first light emitting module mount disposed above the main body, a first light emitting module disposed on the first light emitting module mount, a roof disposed on the first light emitting module mount, an insect collection unit disposed under the main body, and an air collection unit disposed in the insect collection unit, the air collection unit having a substantially tapered shape to have a gradually decreasing diameter with an increasing distance from the suction fan, in which the first light emitting module mount includes a first light emitting module cover facing at least a portion of the first light emitting module, and the roof includes a pressing portion protruding from the roof and contacting at least one of the first light emitting module and the first light emitting module cover.
    Type: Application
    Filed: January 4, 2019
    Publication date: May 9, 2019
    Inventors: Hoon Sik EOM, Hyun Seung JO, Byeong Cheol JU, Sang Hyun CHANG, Mi So KOH, Eun Mi CHOI
  • Patent number: 10251179
    Abstract: The present disclosure relates to 5th generation (5G) or pre-5G communication systems to support a higher data rate than the long term evolution (LTE) or other 4th generation (4G) communication systems. A method for transmitting data in a communication system is provided. The method includes identifying, by a station (STA) communicating with a first access point (AP), a resource for performing communication with a second AP positioned adjacent to the STA based on information regarding a capability of the STA, performing the communication with the second AP using the resource, and transmitting data obtained by performing the communication with the second AP to the first AP. The information regarding the capability includes one of information regarding multiple antennas available on the STA, information regarding a base-band processing unit including the multiple antennas, or information regarding a modem including the multiple antennas and the base-band processing unit.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: April 2, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byoung-Hoon Jung, Hyun-Jeong Kang, O-Hyun Jo, Sang-Hyun Chang
  • Publication number: 20190090470
    Abstract: An insect trap including a light source part to emit a light, a fan disposed under the light source part, a housing to accommodate the fan, and a trapping part disposed under the fan and coupled to the housing. The trapping part includes a trapping net including an opening facing the fan, a body frame coupled to the trapping net, at least one first rib crossing the body frame, and a shutter part coupled to the body frame to be spaced apart from the first rib and opened or closed depending on an operation of the fan.
    Type: Application
    Filed: September 28, 2018
    Publication date: March 28, 2019
    Inventors: Gwang Ryong LEE, Sang Hyun Chang
  • Patent number: 10228458
    Abstract: A code reading method and a radar system using a short-range millimeter wave (mmWave) radar are provided. The method includes transmitting a mmWave radar signal to a target object from a radar system and receiving a reflection wave signal reflected on the target object, extracting reflection signal strengths for a plurality of line codes constituting the target object from the reflection wave signal, compensating for the reflection signal strengths considering a difference in antenna gain between the plurality of line codes as per an antenna radiation pattern of the radar system, forming a radar image using the compensated reflection signal strengths, and reading a binary code from the radar image.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: March 12, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joo-Sung Park, Ki-Taek Bae, Dae-Hyun Kim, Seung-Ku Han, Tae-Sik Yang, Sang-Hyun Chang
  • Publication number: 20180368383
    Abstract: The present invention relates to an insect trap for attracting insects using a UV LED and sucking and capturing the attracted insects with a fan. The insect trap of the present invention comprises: a body; a suction part provided on one side of the body; a fan installed behind the suction part; at least one UV LED, provided on the body at least around the fan, for irradiating ultraviolet rays forward; a discharge part for discharging air sucked in by the suction part in a direction different from the air suction direction of the suction part; a duct which is an air passage from the suction part to the discharge part; a first streamlined inner surface, provided on an inner wall side opposite to a direction in which the duct extends on the basis of the suction part, for guiding air sucked into the suction part toward the duct; and an insect net, installed in the discharge part, for passing the air therethrough and capturing insects being sucked in together with the air.
    Type: Application
    Filed: August 10, 2018
    Publication date: December 27, 2018
    Inventors: Mi So Ko, Chung Hoon Lee, Hoon Sik Eom, Sang Hyun Chang
  • Publication number: 20180375559
    Abstract: A method and apparatus for beamforming in a wireless communication system are provided. The method of supporting beamforming in a wireless communication device includes detecting a direction change of the wireless communication device while communicating with a peer device. The method of supporting beamforming in a wireless communication device also includes adjusting a beam direction for communication with the peer device based on information indicating a direction change of the wireless communication device.
    Type: Application
    Filed: August 31, 2018
    Publication date: December 27, 2018
    Inventors: Ohyun Jo, Jae-Hwa Kim, Sang-Hyun Chang, Chang-Yeul Kwon, Dong-Hwi Roh, Ji-Sung Oh
  • Patent number: 10149107
    Abstract: A method and apparatus for estimating a position of a terminal is provided. The method and apparatus include a technique for a sensor network, a machine to machine (M2M), a machine type communication (MTC), and Internet of things (IoT), and may be used for intelligent services based on the technique (smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail industry, and security and safety related services). The method includes identifying direction information of a received signal if setting up connection between a terminal and an access point (AP), receiving information about a barometric pressure sensor from the terminal, and calculating the position of the terminal based on the direction information and the information about the barometric pressure sensor of the terminal.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: December 4, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In-Hak Na, Sang-Jun Moon, Sin-Seok Seo, Sang-Hyun Chang, Dae-Kyu Choi
  • Patent number: 10139484
    Abstract: The present disclosure relates to a sensor network, Machine Type Communication (MTC), Machine-to-Machine (M2M) communication, and technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the above technologies, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. An apparatus and method for measuring a distance between wireless devices using a first signal transmitted/received between the wireless devices in a wireless communication system are provided. The method includes: receiving the first signal for distance measurement transmitted from a first of the wireless devices; receiving a signal reflected by a reflector after being transmitted from the first of the wireless devices; and based on the received first signal and the received reflected signal, estimating a distance between the second of the wireless devices and the reflector.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: November 27, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Rok Yoon, Jong-Ho Oh, Jung-Min Yoon, Sang-Hyun Chang, Chang-Yeul Kwon
  • Patent number: 10097252
    Abstract: A method and apparatus for beamforming in a wireless communication system are provided. The method of supporting beamforming in a wireless communication device includes detecting a direction change of the wireless communication device while communicating with a peer device. The method of supporting beamforming in a wireless communication device also includes adjusting a beam direction for communication with the peer device based on information indicating a direction change of the wireless communication device.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: October 9, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ohyun Jo, Jae-Hwa Kim, Sang-Hyun Chang, Chang-Yeul Kwon, Dong-Hwi Roh, Ji-Sung Oh
  • Publication number: 20180271080
    Abstract: The present invention relates to an insect trap and, more specifically, to an insect trap which uses UV LEDs as light sources for luring insects and is capable of efficiently radiating luring light. The insect trap according to the present invention comprises a UV LED installation part having a plurality of UV LED light sources installed at intervals on the edge of the outer side surface thereof, and a trap part disposed adjacent to the UV LED installation part. The center lines of the ultraviolet light radiation areas of the UV LED light sources installed on the UV LED installation part are arranged substantially radially, extending outward from the center of the insect trap.
    Type: Application
    Filed: January 2, 2018
    Publication date: September 27, 2018
    Inventors: Jong Rack Kim, Chung Hoon Lee, Kyu Won Han, Sang Hyun Chang
  • Patent number: 10080227
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A terminal and method are provided for data signal transmission in a wireless communication system. The method includes receiving identification information of a band designated for the terminal; receiving a data signal generated based on resource allocation information on the band and an orthogonal frequency division multiple access (OFDMA) scheme; and demodulating and decoding the data signal based on the resource allocation information.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: September 18, 2018
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Sung-Kyu Jung, Jong-Ho Oh, Hyun-Jeong Kang, Dae-Hyun Kim, Jae-Won Kim, Chang-Hyun Baik, Sang-Hyun Chang, Byoung Hoon Jung, Hyun-Kyu Yu
  • Patent number: 10070341
    Abstract: The present disclosure relates to a 5G or pre-5G communication system to be provided in order to support higher data rates after a 4G communication system, such as an LTE system. A method for receiving buffer status information by an access point in a wireless communication system is provided. In the method, a contention sub-slot and a dedicated sub-slot are determined for each station connected to the access point, a data trigger action frame is generated based on a first element including allocation information on the dedicated sub-slot to be used by a related station in a buffer status report (BSR) phase where each of the stations transmits buffer status information to the access point, the generated data trigger action frame is broadcasted to the stations, and a BSR frame transmitted based on the data trigger action frame is received from each of the stations.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: September 4, 2018
    Assignees: Samsung Electronics Co., Ltd., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Youngwook Son, Sang-Hyun Chang, Byoung-Hoon Jung, Seongwon Kim, Seungmin Yoo, Jaehong Yi, Sunghyun Choi, Soo-Young Jang
  • Publication number: 20180213763
    Abstract: In one aspect, an insect trap is provided to comprise: a main body having formed with an opening exposing an inside thereof; an ultraviolet LED lamp comprising an ultraviolet LED, a substrate on the surface of which the ultraviolet LED is mounted, a base for forming an accommodation space for accommodating the substrate, and a pair of electrode pins protruding from the base so as to be electrically connected to the substrate; the pair of electrode pins being arranged in a UV emitting direction of the UV LED lamp; a mounting unit comprising a mounting plate placed inside the main body and a socket coupled to the mounting plate and securing the electrode pins to the mounting plate such that the UV LED lamp is placed inside the main body; and a trapping unit provided in the main body and located adjacent to the UV LED lamp.
    Type: Application
    Filed: March 22, 2018
    Publication date: August 2, 2018
    Inventors: Chung Hoon Lee, Kyu Won Han, Sang Hyun Chang
  • Patent number: D826367
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: August 21, 2018
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Si Ho Yu, Sang Hyun Chang, Hoon Sik Eom
  • Patent number: D854117
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: July 16, 2019
    Inventor: Sang Hyun Chang
  • Patent number: D854118
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: July 16, 2019
    Inventors: Sang Hyun Chang, Sung Il Park, Si Ho Yu, Chung Hoon Lee