Patents by Inventor Dave Ahn

Dave Ahn 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).

  • Secure message transmission apparatus and processing method thereof
    Patent number: 10187359
    Abstract: The disclosure provides a secure message transmission apparatus and a processing method thereof. A method for processing a secure message may include receiving a message transmitted by a transmission-side terminal and determining whether the message is an encrypted message, by a non-secure message service unit; delivering the encrypted message to a secure message service unit by the non-secure message service unit when the message is the encrypted message; and decrypting the encrypted message, and re-encrypting the decrypted message and transmitting the re-encrypted message to a reception-side terminal, by the secure message service unit.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: January 22, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dave Ahn, Kyung-Soo Kwag, Ji-Yeon Choi, Sung-Hyun Hong
  • SECURE MESSAGE TRANSMISSION APPARATUS AND PROCESSING METHOD THEREOF
    Publication number: 20160241523
    Abstract: The disclosure provides a secure message transmission apparatus and a processing method thereof. A method for processing a secure message may include receiving a message transmitted by a transmission-side terminal and determining whether the message is an encrypted message, by a non-secure message service unit; delivering the encrypted message to a secure message service unit by the non-secure message service unit when the message is the encrypted message; and decrypting the encrypted message, and re-encrypting the decrypted message and transmitting the re-encrypted message to a reception-side terminal, by the secure message service unit.
    Type: Application
    Filed: February 11, 2016
    Publication date: August 18, 2016
    Inventors: Dave AHN, Kyung-Soo KWAG, Ji-Yeon CHOI, Sung-Hyun HONG
  • Server, client device, method for generating a transport stream thereof and processing the transport stream thereof
    Patent number: 9100677
    Abstract: A method for generating a transport stream of a server is provided. The method for generating a transport stream of a server which sends broadcasting content to a client device comprises: scrambling broadcasting content by using a specific key; adding at least one content-encryption message which includes the specific key and a device key for obtaining the specific key from the at least one content-encryption message to the broadcasting content so as to generate a transport stream; and sending the generated transport stream to the client device.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: August 4, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-jin Kang, Dave Ahn, Ji-soon Park
  • SERVER, CLIENT DEVICE, METHOD FOR GENERATING A TRANSPORT STREAM THEREOF AND PROCESSING THE TRANSPORT STREAM THEREOF
    Publication number: 20130070923
    Abstract: A method for generating a transport stream of a server is provided. The method for generating a transport stream of a server which sends broadcasting content to a client device comprises: scrambling broadcasting content by using a specific key; adding at least one content-encryption message which includes the specific key and a device key for obtaining the specific key from the at least one content-encryption message to the broadcasting content so as to generate a transport stream; and sending the generated transport stream to the client device.
    Type: Application
    Filed: September 10, 2012
    Publication date: March 21, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-jin KANG, Dave AHN, Ji-soon PARK
  • Method of generating license, and method and apparatus for providing contents using the same
    Patent number: 8255333
    Abstract: A method and apparatus for generating and updating a license for content and for providing content are provided. The method of generating a license includes generating license signature information for authenticating the license; generating use rule information for controlling the use of the content; generating authentication code information for authenticating a coupon for changing at least a portion of the use rule information; and generating key information required for decrypting the content.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: August 28, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-bum Shin, Yong-kuk You, Chi-hurn Kim, Young-sun Yoon, Ji-young Moon, Dave Ahn
  • Method of generating license, and method and apparatus for providing contents using the same
    Publication number: 20070219922
    Abstract: A method and apparatus for generating and updating a license for content and for providing content are provided. The method of generating a license includes generating license signature information for authenticating the license; generating use rule information for controlling the use of the content; generating authentication code information for authenticating a coupon for changing at least a portion of the use rule information; and generating key information required for decrypting the content.
    Type: Application
    Filed: January 9, 2007
    Publication date: September 20, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun-bum Shin, Yong-Kuk You, Chi-hurn Kim, Young-sun Yoon, Ji-young Moon, Dave Ahn