Patents by Inventor Hwa-Shik Shin

Hwa-Shik Shin 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).

  • Device and method for inputting password using random keypad
    Patent number: 7698563
    Abstract: A device and a method for inputting passwords in ATM or door-lock and etc, having display means are provided. In particular, said device comprises a keypad in display means where numbers or letters for passwords are arranged randomly, and further comprises a keypad providing an indirect password numbers or letters randomly arranged, according to an original password, to be input in another indirect password keypad such that the original password of a user can be protected effectively from the others eye.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: April 13, 2010
    Inventor: Hwa-Shik Shin
  • Device and method for inputting password using random keypad
    Publication number: 20060053301
    Abstract: A device and a method for inputting passwords in ATM or door-lock and etc, having display means are provided. In particular, said device comprises a keypad in display means where numbers or letters for passwords are arranged randomly, and further comprises a keypad providing an indirect password numbers or letters randomly arranged, according to an original password, to be input in another indirect password keypad such that the original password of a user can be protected effectively from the others eye.
    Type: Application
    Filed: December 23, 2003
    Publication date: March 9, 2006
    Inventor: Hwa-Shik Shin