Patents by Inventor Doo Sub Eom

Doo Sub Eom 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).

  • STM-based ATM cell physical layer processing circuit
    Patent number: 5978377
    Abstract: The present invention discloses a processing circuit for STM-based ATM (Asynchronous Transfer Mode) cell physical layer.In the present invention are disclosed a general circuit structure having a multiplex, demultiplex unit between a byte processing unit and a parallel processing unit, a real-time transform method between 16 bit UTOPIA format and a standard ATM cell format in a ATM cell processing unit, and a control circuit which is normally in 9.times.270 mode and drives all the circuit in 9.times.30 mode in a special test mode.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: November 2, 1999
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chan Kim, Yeong Ho Park, Doo Sub Eom, Jae Keun Kim