Patents by Inventor Sung Min Ahn

Sung Min 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).

  • Method of synchronizing data between contents providers and a portable device via network and a system thereof
    Patent number: 7770226
    Abstract: The present invention relates to a method and system of synchronizing data between a contents providing system and a portable device via network. More particularly, the present invention relates to a method and system of transmitting predetermined data of contents, which requires digital rights protection, to a portable device, wherein a contents providing system and a synchronization information system are connected with a synchronization client installed in a computer to which the portable device is connected.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: August 3, 2010
    Assignee: Inka Entworks, Inc.
    Inventor: Sung Min Ahn
  • Method for Providing License Corresponding to Encrypted Contents to Client Apparatus and Digital Rights Management Conversion System Using the Method
    Publication number: 20100169221
    Abstract: Disclosed are a method for providing a license corresponding to encrypted contents to a client apparatus, which provides a license in response to a request of the license corresponding to contents super-distributed to a third person in a DRM conversion system, and a DRM conversion system using the same. First digital rights contents type first contents and a first license corresponding to the first contents are digital rights management converted to generate second digital rights contents type second contents and a second license corresponding to the second contents. A license request corresponding to the second contents super-distributed to a third person is received. A second license corresponding to the second contents super-distributed is requested from a server corresponding to the second digital right management. The second license corresponding to the second contents super-distributed is received and transmitted to the third person.
    Type: Application
    Filed: January 5, 2007
    Publication date: July 1, 2010
    Applicant: INKA ENTWORKS, INC
    Inventors: Sung Min Ahn, Woon Sang An
  • Image sensor including photoelectric charge-trap structure
    Publication number: 20090152530
    Abstract: A pixel of an image sensor includes a first insulating structure, a photoelectric charge-trap structure, a second insulating structure, and a gate electrode. The first insulating structure is formed on a substrate, and the photoelectric charge-trap structure is formed on the first insulating structure. The second insulating structure is formed on the photoelectric charge-trap structure. The gate electrode is formed on the second insulating structure. The photoelectric charge-trap structure converts a significant amount of light reaching the pixel into charge carriers.
    Type: Application
    Filed: October 15, 2008
    Publication date: June 18, 2009
    Inventors: Sung-Min Ahn, Jeong-Ho Lee