Patents by Inventor Si-Gyung Koo

Si-Gyung Koo 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).

  • Application specific integrated circuit (ASIC) for driving an external display device
    Patent number: 6246398
    Abstract: A display apparatus is provided that enables an output of an application specific integrated circuit (IC) to be externally displayed without an additional driving device or an interface coupled to the additional driving device. The external display apparatus for an application specific IC includes an application specific integrated circuit, a converting unit disposed in the application specific integrated circuit for converting a two-level signal outputted from the application specific integrated circuit to a plurality of four(or more)-level signals, and a display unit for externally displaying respective output values of the converting unit.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: June 12, 2001
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventor: Si-Gyung Koo