Patents by Inventor Hyo-Sun Hwang

Hyo-Sun Hwang 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).

  • Patent number: 11228438
    Abstract: A security device providing a security function for an image, a camera device including the same, and a system on chip (SOC) for controlling the camera device are provided. An image transmitting device may include an image processor configured to process an image to be transmitted to an external device, and a security circuit including a key shared with the external device. The security circuit may be configured to generate a tag used for image authentication by using data of a partial region of the image and the key based on region information for selecting the partial region of the image. The image transmitting device may be configured to transmit the tag, generated to correspond to the image, to the external device with data of the image.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: January 18, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-hoon Shin, Ki-seok Bae, Hong-mook Choi, Ji-su Kang, Jae-hyeok Kim, Hye-soo Lee, Hyo-sun Hwang
  • Patent number: 11197635
    Abstract: A healthcare apparatus according to an embodiment includes: a plurality of light sources configured to emit light of different wavelengths onto an object; a light detector configured to measure an optical signal of each of the wavelengths by receiving light reflected or scattered from the object; and a processor configured to obtain a blood glucose level and a blood flow index by using the optical signal of each of the wavelengths, and to estimate at least one from among dietary information and dietary metabolism state information by monitoring a blood glucose level change and a blood flow index change after ingestion of a food.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: December 14, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ka Ram Choi, Hyo Sun Hwang, Jin Young Park, Jae Wook Shim, So Young Lee, Sang Kon Bae, Eui Seok Shin
  • Patent number: 11144650
    Abstract: A semiconductor device for provisioning secure information of a demander includes a device key storage configured to store a device key provisioned by a supplier of the semiconductor device, a master key generator configured to generate, based on the device key and demander data provisioned by the demander, a master key of the demander by using a first operation shared with the supplier and a second operation shared with the demander, and a cryptographic engine configured to perform a cryptographic operation based on the master key.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: October 12, 2021
    Inventors: Ki-Tak Kim, Ki-Seok Bae, Jin-Su Hyun, Young-Moon Sonn, Hyo-Sun Hwang
  • Publication number: 20210240833
    Abstract: Provided is a security device, an electronic device, a secure boot management system, a method for generating a boot image and a method for executing a boot chain. The security device includes a key deriver configured to receive a root key and a protected boot key included in a boot image and generate a derived key according to a key protection method using the root key and the protected boot key, a key processor configured to perform verification according to the key protection method using the generated derived key to extract a boot key from the protected boot key included in the boot image, a secure booter configured to perform verification on a protected execution image included in the boot image using the extracted boot key, and a processor configured to execute a verified execution image on which the verification has been completed by the secure booter.
    Type: Application
    Filed: August 24, 2020
    Publication date: August 5, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ki Seok BAE, Jong Hoon Shin, Ki Tak Kim, Hye Soo Lee, Jin Su Hyun, Hyo Sun Hwang
  • Patent number: 11057206
    Abstract: An encryption device for generating an electronic signature for security includes a random number generation module configured to generate at least one random number, a random number adjusting module configured to generate a one-time random number satisfying a random number condition in an elliptic curve cryptography-based digital signature algorithm (ECDSA) by adjusting the at least one random number; and an electronic signature generation module configured to generate the electronic signature using the one-time random number based on the ECDSA.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: July 6, 2021
    Inventors: Ki-seok Bae, Hyo-sun Hwang, Ki-tak Kim, Jong-hoon Shin, Jin-su Hyun
  • Publication number: 20200256920
    Abstract: Provided are battery management apparatuses and methods. The battery management apparatus includes a sensitivity determiner configured to determine sensitivity of a battery state based on sensed battery information and previous battery state information, and an execution parameter adjuster configured to adjust a parameter for estimating the battery state based on the determined sensitivity of the battery state.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyo Sun HWANG, Jin Ho KIM, Sang Do PARK, Tae Won SONG
  • Patent number: 10670661
    Abstract: Provided are battery management apparatuses and methods. The battery management apparatus includes a sensitivity determiner configured to determine sensitivity of a battery state based on sensed battery information and previous battery state information, and an execution parameter adjuster configured to adjust a parameter for estimating the battery state based on the determined sensitivity of the battery state.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: June 2, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyo Sun Hwang, Jin Ho Kim, Sang Do Park, Tae Won Song
  • Publication number: 20200136819
    Abstract: An encryption device for generating an electronic signature for security includes a random number generation module configured to generate at least one random number, a random number adjusting module configured to generate a one-time random number satisfying a random number condition in an elliptic curve cryptography-based digital signature algorithm (ECDSA) by adjusting the at least one random number; and an electronic signature generation module configured to generate the electronic signature using the one-time random number based on the ECDSA.
    Type: Application
    Filed: July 31, 2019
    Publication date: April 30, 2020
    Inventors: Ki-seok Bae, Hyo-sun Hwang, Ki-tak Kim, Jong-hoon Shin, Jin-su Hyun
  • Publication number: 20200110888
    Abstract: A semiconductor device for provisioning secure information of a demander includes a device key storage configured to store a device key provisioned by a supplier of the semiconductor device, a master key generator configured to generate, based on the device key and demander data provisioned by the demander, a master key of the demander by using a first operation shared with the supplier and a second operation shared with the demander, and a cryptographic engine configured to perform a cryptographic operation based on the master key.
    Type: Application
    Filed: May 30, 2019
    Publication date: April 9, 2020
    Inventors: Kl-TAK KIM, KI-SEOK BAE, JIN-SU HYUN, YOUNG-MOON SONN, HYO-SUN HWANG
  • Patent number: 10585035
    Abstract: Provided is a spectrometer. The spectrometer includes: a light source part configured to emit light of a plurality of wavelengths onto an object; a detector configured to detect an optical signal of each of the plurality of wavelengths as reflected from the object; a controller configured to set an amplification gain for each of the plurality of wavelengths according to photoreaction properties of the object; and an amplifier configured to amplify an output signal of the detector by using the set amplification gain.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: March 10, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Wook Shim, Hyo Sun Hwang, Hyun Seok Moon, Hyeong Seok Jang
  • Patent number: 10551312
    Abstract: An optical sensor includes light sources configured to emit light, a substrate on which the light sources are mounted, the substrate comprising holes in regions on which the light sources are mounted, and a first photodetector configured to receive a first light emitted from a front surface of each of the light sources, the first light being reflected or scattered from an object. The optical sensor further includes at least one second photodetector configured to receive a second light emitted from a rear surface of each of the light sources, the second light passing through the holes corresponding to the light sources.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: February 4, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeong Seok Jang, Jae Wook Shim, Hyun Seok Moon, Hyo Sun Hwang
  • Patent number: 10365160
    Abstract: Provided is a spectrum measurement apparatus including a light source configured to emit light to a sample; a light detector configured to receive light, which is reflected or scattered from, or transmitted through the sample, and to measure an intensity of the received light, and a processor configured to reconstruct a spectrum of the sample for calibration while adjusting a value of a spectrum reconstruction parameter in response to the light detector receiving the light and measuring the intensity of the received light, and to determine an optimal value of the spectrum reconstruction parameter based on a similarity between the reconstructed spectrum of the sample for calibration and an original spectrum of the sample for calibration.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: July 30, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyo Sun Hwang, So Young Lee, Jae Wook Shim
  • Publication number: 20190204220
    Abstract: An optical sensor includes light sources configured to emit light, a substrate on which the light sources are mounted, the substrate comprising holes in regions on which the light sources are mounted, and a first photodetector configured to receive a first light emitted from a front surface of each of the light sources, the first light being reflected or scattered from an object. The optical sensor further includes at least one second photodetector configured to receive a second light emitted from a rear surface of each of the light sources, the second light passing through the holes corresponding to the light sources.
    Type: Application
    Filed: December 17, 2018
    Publication date: July 4, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeong Seok JANG, Jae Wook SHIM, Hyun Seok MOON, Hyo Sun HWANG
  • Publication number: 20190167190
    Abstract: A healthcare apparatus according to an embodiment includes: a plurality of light sources configured to emit light of different wavelengths onto an object; a light detector configured to measure an optical signal of each of the wavelengths by receiving light reflected or scattered from the object; and a processor configured to obtain a blood glucose level and a blood flow index by using the optical signal of each of the wavelengths, and to estimate at least one from among dietary information and dietary metabolism state information by monitoring a blood glucose level change and a blood flow index change after ingestion of a food.
    Type: Application
    Filed: November 27, 2018
    Publication date: June 6, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: KA RAM CHOI, HYO SUN HWANG, JIN YOUNG PARK, JAE WOOK SHIM, SO YOUNG LEE, SANG KON BAE, EUI SEOK SHIN
  • Publication number: 20190154568
    Abstract: Provided is a spectrometer. The spectrometer includes: a light source part configured to emit light of a plurality of wavelengths onto an object; a detector configured to detect an optical signal of each of the plurality of wavelengths as reflected from the object; a controller configured to set an amplification gain for each of the plurality of wavelengths according to photoreaction properties of the object; and an amplifier configured to amplify an output signal of the detector by using the set amplification gain.
    Type: Application
    Filed: March 22, 2018
    Publication date: May 23, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Wook SHIM, Hyo Sun HWANG, Hyun Seok MOON, Hyeong Seok JANG
  • Patent number: 10270545
    Abstract: A device for detecting an interference signal includes an estimator configured to estimate a mean value of received signals output from an analog-digital converter (ADC), a filter configured to filter a low frequency band of the received signals using the estimated mean value to produce filtered received signals, a detector configured to detect, from the filtered received signals, interference signals using a coherent modulation scheme and a non-coherent modulation scheme, and a combiner configured to determine whether interference exists in a frequency channel in response to a result of the interference signal detecting using the coherent modulation scheme and the non-coherent modulation scheme, based on a preset condition.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: April 23, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Soon Park, Hyo Sun Hwang, Joon Seong Kang, Young Jun Hong
  • Publication number: 20190097805
    Abstract: A security device providing a security function for an image, a camera device including the same, and a system on chip (SOC) for controlling the camera device are provided. An image transmitting device may include an image processor configured to process an image to be transmitted to an external device, and a security circuit including a key shared with the external device. The security circuit may be configured to generate a tag used for image authentication by using data of a partial region of the image and the key based on region information for selecting the partial region of the image. The image transmitting device may be configured to transmit the tag, generated to correspond to the image, to the external device with data of the image.
    Type: Application
    Filed: September 28, 2018
    Publication date: March 28, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-hoon SHIN, Ki-seok BAE, Hong-mook CHOI, Ji-su KANG, Jae-hyeok KIM, Hye-soo LEE, Hyo-sun HWANG
  • Publication number: 20190041269
    Abstract: Provided is a spectrum measurement apparatus including a light source configured to emit light to a sample; a light detector configured to receive light, which is reflected or scattered from, or transmitted through the sample, and to measure an intensity of the received light, and a processor configured to reconstruct a spectrum of the sample for calibration while adjusting a value of a spectrum reconstruction parameter in response to the light detector receiving the light and measuring the intensity of the received light, and to determine an optimal value of the spectrum reconstruction parameter based on a similarity between the reconstructed spectrum of the sample for calibration and an original spectrum of the sample for calibration.
    Type: Application
    Filed: January 26, 2018
    Publication date: February 7, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: HYO SUN HWANG, SO YOUNG LEE, JAE WOOK SHIM
  • Patent number: 9848244
    Abstract: An interactive method includes displaying image content received through a television (TV) network, identifying an object of interest of a user among a plurality of regions or a plurality of objects included in the image content, and providing additional information corresponding to the object of interest.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: December 19, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gyeong Ja Jang, Byung In Yoo, Yong Beom Lee, Young Chul Cho, Hyo Sun Hwang
  • Patent number: 9801134
    Abstract: A communication method of a coordinator in a bidirectional event transmission sensor network comprising a sensor node and the coordinator is provided. The method includes sensing, in an uplink section, whether a signal having energy greater than or equal to a predetermined magnitude is received, the signal indicating occurrence of an uplink event detected by the sensor node, and transmitting, to the sensor node in a downlink section, a synchronization packet that is used for receiving the uplink event or for transmitting a downlink event in response to the coordinator detecting the downlink event or sensing the signal having energy greater than or equal to the predetermined magnitude in the uplink section. The bidirectional event transmission sensor network has a structure of a super frame that includes at least one standby slot (SS) including the uplink section and the downlink section.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: October 24, 2017
    Assignees: Samsung Electronics Co., Ltd., Korea University Industrial & Academic Collaboration Foundation
    Inventors: Hyo Sun Hwang, Chi Sung Bae, Seung Ku Kim, Jae Ho Lee, Doo Seop Eom