Patents Assigned to 4DREAM CO., LTD.
  • Publication number: 20230074748
    Abstract: A digital forensic image verification system according to an embodiment of the present disclosure includes an imaging device having a imaging unit configured to produce an image, a first hash value generator configured to generate a first hash value for the image, and a transmitting unit configured to transmit the image and the first hash value; and an image storage device having a receiving unit configured to receive the image and the first hash value from the imaging device, a second hash value generator configured to generate a second hash value for the image, and a controller configured to compare the first hash value and the second hash value with each other.
    Type: Application
    Filed: November 14, 2022
    Publication date: March 9, 2023
    Applicants: 4DREAM CO., LTD., Hanwha Techwin Co., Ltd.
    Inventors: Won-Kug Kim, Jin-Kyo SHIN
  • Publication number: 20230038872
    Abstract: Provided is a method of protecting private information from illegal photography by an unmanned aerial vehicle, which includes receiving information about an area to capture, from the unmanned aerial vehicle or an unmanned aerial vehicle pilot, in advance, by wired or wireless communication, transmitting the information about an area to capture, to a private information protection subject who wants to protect private information about the area to capture, by wired or wireless communication, receiving information about a first action to protect private information accompanying image capturing, from the private information protection subject, by wired or wireless communication, and transmitting the information about a first action to protect private information, the information being received from the private information protection subject, to the unmanned aerial vehicle or the unmanned aerial vehicle pilot who is going to capture an image, by wired or wireless communication.
    Type: Application
    Filed: December 8, 2020
    Publication date: February 9, 2023
    Applicant: 4DREAM CO., LTD.
    Inventors: Won-Kug KIM, Jin-Kyo SHIN
  • Patent number: 11170081
    Abstract: A system for verifying control history of an unmanned aerial vehicle according to one embodiment of the present disclosure includes an authentication unit for collecting personal information from a pilot who controls an unmanned aerial vehicle to authenticate the pilot, a storage unit storing control information regarding the pilot's control of the unmanned aerial vehicle, and an encryption unit for sealing and encrypting data of the personal information and the control information; and is capable of controlling and managing an indiscriminate use of the unmanned aerial vehicle and providing a control time, flight history, etc., to an organization which needs such information.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: November 9, 2021
    Assignee: 4DREAM CO., LTD.
    Inventors: Won-Kug Kim, Jin-Kyo Shin, Ki-Il Ryu, Kwang-Rae Kim, Haes-Sal Jeon
  • Patent number: 11130571
    Abstract: An unmanned aerial vehicle according to an embodiment of the present disclosure includes a storing part configured to store information regarding a geo-fence area, and flight approval information or shooting approval information of a main body of the unmanned aerial vehicle with respect to the geo-fence area; and a controller configured to, when the main body approaches the geo-fence area, extract approval code from the flight approval information or the shooting approval information, and release at least one of a flight mode and a shooting mode prohibited in the geo-fence area.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: September 28, 2021
    Assignee: 4DREAM CO., LTD.
    Inventors: Won-Kug Kim, Ki-Il Ryu, Jin-Kyo Shin
  • Patent number: 10891702
    Abstract: The present disclosure relates to a duplicate image evidence management system for verifying authentication and integrity, the duplicate image evidence management system being capable of verifying that a duplicate image has authentication and integrity when an original image generated by an image storage device is copied by an image collecting device. The duplicate image evidence management system according to the present disclosure includes: an image generating unit for generating an original image; a hash generating unit for generating an original hash value for the original image; a hash checking unit for checking whether the original hash value is changed; and a duplicate image generating unit for copying the original image so as to generate a first duplicate image and generating a first hash value for the first duplicate image, when it is checked by the hash checking unit that the original hash value is not changed.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: January 12, 2021
    Assignees: 4DREAM CO., LTD., HANWHA TECHWIN CO., LTD.
    Inventors: Won-Kug Kim, Jin-Kyo Shin
  • Publication number: 20200278948
    Abstract: A method of managing an electronic fingerprint of an electronic file includes receiving an original electronic fingerprint of an original electronic file from an original electronic file generation apparatus generating the original electronic file via a network, separately from the original electronic file; receiving original storage path information of the original electronic file together with the original electronic fingerprint from the original electronic file generation apparatus; and receiving at least one of a first identifier of the original electronic file generation apparatus and original meta information of the original electronic file together with the original electronic fingerprint from the original electronic file generation apparatus.
    Type: Application
    Filed: May 21, 2020
    Publication date: September 3, 2020
    Applicants: 4DREAM CO., LTD., HANWHA TECHWIN CO., LTD.
    Inventors: Won Kug KIM, Ki Il RYU, Jin Kyo SHIN, Kwang Rae KIM
  • Publication number: 20190236246
    Abstract: A system for verifying control history of an unmanned aerial vehicle according to one embodiment of the present disclosure includes an authentication unit for collecting personal information from a pilot who controls an unmanned aerial vehicle to authenticate the pilot, a storage unit storing control information regarding the pilot's control of the unmanned aerial vehicle, and an encryption unit for sealing and encrypting data of the personal information and the control information; and is capable of controlling and managing an indiscriminate use of the unmanned aerial vehicle and providing a control time, flight history, etc., to an organization which needs such information.
    Type: Application
    Filed: September 29, 2017
    Publication date: August 1, 2019
    Applicants: 4DREAM CO., LTD.
    Inventors: Won-Kug KIM, Jin-Kyo SHIN, Ki-ll RYU, Kwang-Rae KIM, Haes-Sal JEON
  • Publication number: 20190227557
    Abstract: An unmanned aerial vehicle according to an embodiment of the present disclosure includes a storing part configured to store information regarding a geo-fence area, and flight approval information or shooting approval information of a main body of the unmanned aerial vehicle with respect to the geo-fence area; and a controller configured to, when the main body approaches the geo-fence area, extract approval code from the flight approval information or the shooting approval information, and release at least one of a flight mode and a shooting mode prohibited in the geo-fence area.
    Type: Application
    Filed: September 29, 2017
    Publication date: July 25, 2019
    Applicants: 4DREAM CO., LTD.
    Inventors: Won-Kug KIM, Ki-ll RYU, Jin-Kyo SHIN
  • Publication number: 20180373894
    Abstract: A digital forensic image verification system according to an embodiment of the present disclosure includes an imaging device having a imaging unit configured to produce an image, a first hash value generator configured to generate a first hash value for the image, and a transmitting unit configured to transmit the image and the first hash value; and an image storage device having a receiving unit configured to receive the image and the first hash value from the imaging device, a second hash value generator configured to generate a second hash value for the image, and a controller configured to compare the first hash value and the second hash value with each other.
    Type: Application
    Filed: December 13, 2016
    Publication date: December 27, 2018
    Applicants: 4DREAM CO., LTD., Hanwha Techwin Co., Ltd.
    Inventors: Won-Kug KIM, Jin-Kyo SHIN
  • Publication number: 20180276778
    Abstract: The present disclosure relates to a duplicate image evidence management system for verifying authentication and integrity, the duplicate image evidence management system being capable of verifying that a duplicate image has authentication and integrity when an original image generated by an image storage device is copied by an image collecting device. The duplicate image evidence management system according to the present disclosure includes: an image generating unit for generating an original image; a hash generating unit for generating an original hash value for the original image; a hash checking unit for checking whether the original hash value is changed; and a duplicate image generating unit for copying the original image so as to generate a first duplicate image and generating a first hash value for the first duplicate image, when it is checked by the hash checking unit that the original hash value is not changed.
    Type: Application
    Filed: September 23, 2016
    Publication date: September 27, 2018
    Applicants: 4DREAM CO., LTD., Hanwha Techwin Co., Ltd.
    Inventors: Won-Kug KIM, Jin-Kyo SHIN
  • Patent number: 8781296
    Abstract: The present invention relates to a system for auditing misuse of an image information, and more particularly, to a system for auditing misuse of an image information, which stores the image information recorded by an image recording device as a file; transmits a log which is related to suspected misuse to the stored file to an auditing server in order to determine whether the stored file was misused; transmits information as to whether a user's access log to the stored file, an image deletion log, an image copy log, and an image view log have been modified to the auditing server; determine whether misuse occurred in view of a misuse behavior pattern; and in a case that misuse occurs generates misuse alarm data thereby notifying a user's terminal of such misuse.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: July 15, 2014
    Assignee: 4Dream Co., Ltd.
    Inventors: Won-Kug Kim, Jin-Kyo Shin
  • Publication number: 20130279880
    Abstract: The present invention relates to a system for auditing misuse of an image information, and more particularly, to a system for auditing misuse of an image information, which stores the image information recorded by an image recording device as a file; transmits a log which is related to suspected misuse to the stored file to an auditing server in order to determine whether the stored file was misused; transmits information as to whether a user's access log to the stored file, an image deletion log, an image copy log, and an image view log have been modified to the auditing server; determine whether misuse occurred in view of a misuse behavior pattern; and in a case that misuse occurs generates misuse alarm data thereby notifying a user's terminal of such misuse.
    Type: Application
    Filed: December 8, 2011
    Publication date: October 24, 2013
    Applicant: 4DREAM CO., LTD.
    Inventors: Won-Kug Kim, Jin-Kyo Shin