Patents by Inventor Chang Woo Ryu

Chang Woo Ryu 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: 10371693
    Abstract: A portable blood glucose measurement device is provided. The device includes, in an externally exposed way, a temperature measurement medium of which the temperature quickly changes according to outside temperature changes provided on one side surface of a case. The device further includes an infrared temperature sensor. The device measures the temperature of the temperature measurement medium with the infrared temperature sensor in a noncontact manner, and calculates a blood glucose measurement result by considering the measured temperature so as to accurately reflect the outside temperature of an actual blood glucose measuring environment. The temperature measurement medium can be configured to sensitively respond to the outside temperature independently from the case such that the temperature of the temperature measurement medium, in accordance with the change in outside temperature, quickly and accurately changes so as to measure the temperature in a more accurate manner.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: August 6, 2019
    Assignee: I-SENS, INC.
    Inventors: Jin Won Lee, Chang Woo Ryu, Geun Sig Cha, Hak hyun Nam
  • Publication number: 20170138929
    Abstract: A portable blood glucose measurement device is provided. The device includes, in an externally exposed way, a temperature measurement medium of which the temperature quickly changes according to outside temperature changes provided on one side surface of a case. The device further includes an infrared temperature sensor. The device measures the temperature of the temperature measurement medium with the infrared temperature sensor in a noncontact manner, and calculates a blood glucose measurement result by considering the measured temperature so as to accurately reflect the outside temperature of an actual blood glucose measuring environment. The temperature measurement medium can be configured to sensitively respond to the outside temperature independently from the case such that the temperature of the temperature measurement medium, in accordance with the change in outside temperature, quickly and accurately changes so as to measure the temperature in a more accurate manner.
    Type: Application
    Filed: May 22, 2015
    Publication date: May 18, 2017
    Applicant: I-SENS, INC.
    Inventors: Jin Won LEE, Chang Woo RYU, Geun Sig CHA, Hak hyun NAM
  • Patent number: 9143250
    Abstract: The present disclosure relates to a blood sugar meter system with a wireless communication module, and more particularly, to a time synchronization method between a blood sugar meter system with a wireless communication module synchronized with a cellular network such as a global system for mobile communication (GSM)/code division multiple access (CDMA) network and the cellular network. The present invention provides a blood sugar meter system with a wireless communication module applying a time synchronization scheme including: a global system for mobile communication (GSM)/code division multiple access (CDMA) network transmitting network identity and time zone (NITZ) information; and a blood sugar meter metering user's blood sugar data, wherein the blood sugar meter synchronizes a network time according to the NITZ information with an internal time of the metered data and transmits the metered blood sugar data to a server connected to the GSM/CDMA network.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: September 22, 2015
    Assignee: I-SENS, INC.
    Inventors: Chang Woo Ryu, Dae Kag Choi, Geun Sig Cha, Hakhyun Nam
  • Publication number: 20140241338
    Abstract: The present disclosure relates to a blood sugar meter system with a wireless communication module, and more particularly, to a time synchronization method between a blood sugar meter system with a wireless communication module synchronized with a cellular network such as a global system for mobile communication (GSM)/code division multiple access (CDMA) network and the cellular network. The present invention provides a blood sugar meter system with a wireless communication module applying a time synchronization scheme including: a global system for mobile communication (GSM)/code division multiple access (CDMA) network transmitting network identity and time zone (NITZ) information; and a blood sugar meter metering user's blood sugar data, wherein the blood sugar meter synchronizes a network time according to the NITZ information with an internal time of the metered data and transmits the metered blood sugar data to a server connected to the GSM/CDMA network.
    Type: Application
    Filed: May 8, 2014
    Publication date: August 28, 2014
    Applicant: i-SENS, Inc.
    Inventors: Chang Woo Ryu, Dae Kag Choi, Geun Sig Cha, Hakhyun Nam