Patents by Inventor Chang-mok Choi
Chang-mok Choi 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: 12290342Abstract: An apparatus for estimating bio-information, may include: a sensor part having a photoplethysmography (PPG) sensor configured to measure a PPG signal from an object of a user, and a force sensor configured to measure a contact force between the object and the PPG sensor; an output interface, which before the PPG signal is measured, is configured to output first guide information indicating a predetermined number of times the user is required to touch the sensor part, and second guide information indicating a number of times that the sensor part has been touched since the first guide information is output; and a processor configured to estimate bio-information of the user by using the PPG signal based on the number of times that the sensor has been touched since the first guide information is output, corresponding to the predetermined number of times the user is required to touch.Type: GrantFiled: November 30, 2021Date of Patent: May 6, 2025Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Mok Choi, Tak Hyung Lee, Ho Jun Chang
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Patent number: 12239422Abstract: An apparatus for estimating biological information may include a sensor configured to detect a first light signal and a second light signal from an object of a user and a processor configured to determine whether a condition for estimating biological information is satisfied based on the detected first light signal and estimate biological information based on the second light signal, wherein the sensor includes a force sensor configured to measure a force applied to the object when the object is in contact with a cover surface of the sensor.Type: GrantFiled: June 16, 2021Date of Patent: March 4, 2025Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byung Hoon Ko, Yong Joo Kwon, Seung Woo Noh, Hyun Seok Moon, Sung Mo Ahn, Kun Sun Eom, Jong Wook Lee, Tak Hyung Lee, Myoung Hoon Jung, Chang Mok Choi
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Patent number: 12207907Abstract: An apparatus for and a method for estimating blood pressure are provided. The apparatus for estimating blood pressure includes: a sensor configured to measure a pulse wave signal from an object; and a processor configured to obtain a mean arterial pressure (MAP) based on the pulse wave signal, configured to classify a phase of the obtained MAP according to at least one classification criterion, and to obtain a systolic blood pressure (SBP) by using an estimation model corresponding to the classified phase of the MAP among estimation models corresponding to respective phases of the MAP.Type: GrantFiled: November 13, 2020Date of Patent: January 28, 2025Assignees: SAMSUNG ELECTRONICS CO., LTD., IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)Inventors: Sang Kon Bae, Joon-Hyuk Chang, Chang Mok Choi, Youn Ho Kim, Jin Woo Choi, Jehyun Kyung, Tae-Jun Park, Joon-Young Yang, Inmo Yeon
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Patent number: 12171563Abstract: An apparatus for estimating bio-information is provided. The apparatus for estimating bio-information by using an ultrasonic signal according to an embodiment of the present disclosure includes: an ultrasonic sensor configured to acquire an ultrasonic signal from an object; and a processor configured to detect peaks from the acquired ultrasonic signal, and to determine false detection of a peak, among the detected peaks, by using at least one of amplitudes of the detected peaks or a left waveform shape and a right waveform shape of the peak.Type: GrantFiled: October 20, 2022Date of Patent: December 24, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ui Kun Kwon, Jae Min Kang, Youn Ho Kim, Sang Kon Bae, Jin Woo Choi, Chang Mok Choi
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Patent number: 12144593Abstract: An apparatus for measuring bio-signals is provided. According to an example embodiment, the apparatus for measuring bio-signals includes: a light source configured to emit light onto an object; an image sensor including: a pixel array configured to detect the light emitted by the light source and reacted by the object and a pixel binning unit configured to bin data of the light, detected by the pixel array, by using at least two different binning sizes; and a processor configured to acquire a plurality of bio-signals respectively based on data of the at least two different binning sizes, which are output from the image sensor.Type: GrantFiled: June 22, 2021Date of Patent: November 19, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong Wook Lee, Byung Hoon Ko, Yong Joo Kwon, Seung Woo Noh, Hyun Seok Moon, Sung Mo Ahn, Kun Sun Eom, Tak Hyung Lee, Myoung Hoon Jung, Chang Mok Choi
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Patent number: 12102419Abstract: A bio-information processing apparatus may include: a bio-signal measurer configured to measure a bio-signal; a bio-information receiver configured to receive first bio-information; and a processor configured to estimate second bio-information based on the bio-signal, and to correct the second bio-information based on measurement circumstances of the first bio-information and the second bio-information.Type: GrantFiled: February 27, 2018Date of Patent: October 1, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byung Hoon Ko, Seung Keun Yoon, Jong Wook Lee, Dae Geun Jang, Chang Mok Choi, Youn Ho Kim
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Patent number: 12042280Abstract: An apparatus for estimating oxygen saturation is provided. The apparatus may include a sensor configured to measure optical signals of multiple wavelengths based on emitting multi-wavelength light onto an object; and a processor configured to: determine a section of the optical signals for estimating the oxygen saturation based on a difference between at least two optical signals among the optical signals of the multiple wavelengths; and estimate the oxygen saturation based on the optical signals of the multiple wavelengths in the section.Type: GrantFiled: July 15, 2021Date of Patent: July 23, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventor: Chang Mok Choi
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Patent number: 12023138Abstract: An apparatus for estimating bio-information, the apparatus including a pulse wave sensor and a processor. The pulse wave sensor includes a plurality of channels, each channel of the plurality of channels being configured to measure a first pulse wave signal of a first wavelength and a second pulse wave signal of a second wavelength that is different from the first wavelength. The processor is configured to: for each channel of the plurality of channels, generate a first oscillogram based on the first pulse wave signal, generate a second oscillogram based on the second pulse wave signal, and convert a phase delay between the first oscillogram and the second oscillogram into an area. The processor is further configured to determine a channel among the plurality of channels based on the area of each channel, and estimate bio-information based on the determined channel.Type: GrantFiled: January 14, 2021Date of Patent: July 2, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang Yun Park, Chang Mok Choi, Jae Min Kang, Seung Woo Noh, Hye Rim Lim, Jin Woo Choi
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Patent number: 12016667Abstract: An apparatus for obtaining bio-information may include a pulse wave sensor including a light source and a detector. The light source is configured to emit multi-wavelength light to an object of interest and the detector is configured to detect light reflected from the object. In addition, the apparatus may include a processor configured to obtain a change in volume of a blood vessel based on one or more of quantity of detected multi-wavelength light and absorbance coefficients of respective wavelengths of the multi-wavelength light and obtain bio-information based on the measured change in volume of the blood vessel.Type: GrantFiled: December 2, 2021Date of Patent: June 25, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Mok Choi, Byung Hoon Ko, Jong Wook Lee, Youn Ho Kim, Young Soo Kim, Jeong Eun Hwang
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Patent number: 11903685Abstract: An apparatus for estimating bio-information includes a sensor part configured to measure a pulse wave signal and a contact force of an object, while the object is in contact with the sensor part. The apparatus further includes a processor configured to extract a first feature from the measured pulse wave signal and the measured contact force, select one estimation model from a plurality of estimation models, based on a second feature of a user corresponding to the object, and estimate the bio-information, by inputting the extracted first features in the selected estimation model.Type: GrantFiled: March 12, 2020Date of Patent: February 20, 2024Assignees: SAMSUNG ELECTRONICS CO., LTD., Industry-University Cooperation Foundation Hanyang UniversityInventors: Jin Woo Choi, Joon-Hyuk Jang, Youn Ho Kim, Chang Mok Choi, Tae-Jun Park, Kwangsub Song
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Patent number: 11896353Abstract: An apparatus for estimating bio-information is provided. The apparatus for estimating bio-information according to an embodiment includes: an ultrasonic sensor configured to acquire a bio-signal from an object; and a processor configured to detect peaks from the bio-signal, and to determine false detection of a peak, among the detected peaks, by using at least one of a time interval between a current peak and an immediately preceding peak, amplitudes of the current peak and the immediately preceding peak, a shape of a waveform on a left region and a right region of the peak, and an occurrence position of the peak.Type: GrantFiled: January 31, 2022Date of Patent: February 13, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ui Kun Kwon, Jae Min Kang, Youn Ho Kim, Sang Kon Bae, Jin Woo Choi, Chang Mok Choi
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Patent number: 11786179Abstract: A bio-signal measuring apparatus includes: a substrate; a pulse wave measurer provided at the substrate and configured to measure pulse waves of a subject; and a pressure measurer provided at the substrate and configured to measure a contact pressure between the subject and the pulse wave measurer.Type: GrantFiled: January 17, 2019Date of Patent: October 17, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Mok Choi, Byung Hoon Ko, Young Soo Kim, Jong Wook Lee, Youn Ho Kim
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Patent number: 11779228Abstract: A bio-signal measurement apparatus may include a first substrate and a second substrate, an optical sensor mounted in the first substrate, a force sensor disposed on or below the first substrate, and a separation structure interposed between the first substrate and the second substrate so as to prevent transmission of a force between the first substrate and the second substrate. An upper surface of the first substrate and an upper surface of the second substrate may be provided at the same level.Type: GrantFiled: May 24, 2019Date of Patent: October 10, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byung Hoon Ko, Yong Joo Kwon, Young Soo Kim, Sang Yun Park, Jong Wook Lee, Chang Mok Choi, Jae Min Kang, Youn Ho Kim
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Publication number: 20230293027Abstract: An apparatus for measuring bio-information may include: a pulse wave sensor comprising at least one pair of light emitters which are disposed apart from each other and a light receiver disposed between the at least one pair of light emitters, and configured to measure a plurality of pulse wave signals from an object by using the light receiver and the at least one pair of light emitters; a force sensor configured to measure a contact force that is applied to the pulse wave sensor by the object; and a processor configured to generate an integrated pulse wave signal by integrating the plurality of pulse wave signals based on the contact force and an area of a contact surface of the pulse wave sensor, and estimate bio-information of the object based on the integrated pulse wave signal.Type: ApplicationFiled: May 25, 2023Publication date: September 21, 2023Applicant: Samsung Electronics Co., Ltd.Inventors: Jeong Eun HWANG, Byung Hoon Ko, Chang Mok Choi, Sang Yun Park, Jong Wook Lee
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Patent number: 11701009Abstract: An apparatus for measuring bio-information may include: a pulse wave sensor comprising at least one pair of light emitters which are disposed apart from each other and a light receiver disposed between the at least one pair of light emitters, and configured to measure a plurality of pulse wave signals from an object by using the light receiver and the at least one pair of light emitters; a force sensor configured to measure a contact force that is applied to the pulse wave sensor by the object; and a processor configured to generate an integrated pulse wave signal by integrating the plurality of pulse wave signals based on the contact force and an area of a contact surface of the pulse wave sensor, and estimate bio-information of the object based on the integrated pulse wave signal.Type: GrantFiled: January 13, 2020Date of Patent: July 18, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jeong Eun Hwang, Byung Hoon Ko, Chang Mok Choi, Sang Yun Park, Jong Wook Lee
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Publication number: 20230131673Abstract: An apparatus for estimating bio-information is provided. The apparatus for estimating bio-information by using an ultrasonic signal according to an embodiment of the present disclosure includes: an ultrasonic sensor configured to acquire an ultrasonic signal from an object; and a processor configured to detect peaks from the acquired ultrasonic signal, and to determine false detection of a peak, among the detected peaks, by using at least one of amplitudes of the detected peaks or a left waveform shape and a right waveform shape of the peak.Type: ApplicationFiled: October 20, 2022Publication date: April 27, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ui Kun KWON, Jae Min KANG, Youn Ho KIM, Sang Kon BAE, Jin Woo CHOI, Chang Mok CHOI
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Publication number: 20230130494Abstract: An apparatus for estimating bio-information is provided. The apparatus for estimating bio-information according to an embodiment includes: an ultrasonic sensor configured to acquire a bio-signal from an object; and a processor configured to detect peaks from the bio-signal, and to determine false detection of a peak, among the detected peaks, by using at least one of a time interval between a current peak and an immediately preceding peak, amplitudes of the current peak and the immediately preceding peak, a shape of a waveform on a left region and a right region of the peak, and an occurrence position of the peak.Type: ApplicationFiled: January 31, 2022Publication date: April 27, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ui Kun KWON, Jae Min KANG, Youn Ho KIM, Sang Kon BAE, Jin Woo CHOI, Chang Mok CHOI
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Publication number: 20230118582Abstract: An apparatus for estimating bio-information, may include: a sensor part having a photoplethysmography (PPG) sensor configured to measure a PPG signal from an object of a user, and a force sensor configured to measure a contact force between the object and the PPG sensor; an output interface, which before the PPG signal is measured, is configured to output first guide information indicating a predetermined number of times the user is required to touch the sensor part, and second guide information indicating a number of times that the sensor part has been touched since the first guide information is output; and a processor configured to estimate bio-information of the user by using the PPG signal based on the number of times that the sensor has been touched since the first guide information is output, corresponding to the predetermined number of times the user is required to touch.Type: ApplicationFiled: November 30, 2021Publication date: April 20, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Mok CHOI, Tak Hyung LEE, Ho Jun CHANG
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Patent number: 11622692Abstract: A signal processing apparatus includes a memory configured to store instructions; and a processor configured to execute the instructions to obtain a signal; obtain a frequency band spectrum by applying a Fast Fourier Transform (FFT) to the obtained signal; and remove noise from the obtained spectrum by applying a first filter and a second filter, which are different from each other, to the obtained frequency band spectrum.Type: GrantFiled: June 18, 2020Date of Patent: April 11, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Mok Choi, Dae Geun Jang
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Patent number: 11540727Abstract: An apparatus for measuring a bio-signal includes a pulse wave sensor that may measure a pulse wave signal, of an object of interest, that is non-equidistantly sampled based on a sampling rate of the pulse wave sensor, and a processor that may identify, using a sampling profile, a first interval based on a health index to be measured. The processor may identify, using the sampling profile, a second interval based on the health index to be measured. The processor may set the sampling rate of the pulse wave sensor to a first sampling rate in the first interval. The processor may set the sampling rate of the pulse wave sensor to a second sampling rate, that is less than the first sampling rate, in the second interval.Type: GrantFiled: September 10, 2019Date of Patent: January 3, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong Wook Lee, Byung Hoon Ko, Chang Mok Choi