Patents by Inventor Hyeong-keun An

Hyeong-keun An 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).

  • Patent number: 5227992
    Abstract: An operation method and apparatus over Galois Field GF(2.sup.m) using a subfield GF(2.sup.m/2). The operation apparatus includes a conversion circuit for converting the elements represented by a basis of GF(2.sup.m) into the elements represented by a basis of GF(2.sup.m/2); an operation circuit for performing an operation over GF(2.sup.m/2) with respect to the elements represented by the basis of GF(2.sup.m/2); and a reversion circuit for reverting the operated elements represented by the basis of GF(2.sup.m/2) to the elements represented by the basis of GF(2.sup.m), thereby performing high speed operation and simplifying circuit construction.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: July 13, 1993
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Man-young Lee, Jae-mun Kim, Hak-song Park, Hyeong-keun An, Heung-yeol Yeom
  • Patent number: 5012451
    Abstract: A ROM circuit is provided which can reduce the required area by simplifying a circuit construction. The ROM circuit generates N bit of data programmed at the respective cross section of output lines and word lines by decoding address signal. The ROM circuit comprises a decoder, a gate means, a memory cell array and a precharge means in which the decoder generates a word signal from an input address signal, the gate means supplied a word signal to a corresponding word line according to a clock signal, the memory cell array stores the desired data according to the combinational existence of MOS transistors at the respective cross section of the word line and the output lines, and the precharged means precharges the respective output lines according to the clock signal.
    Type: Grant
    Filed: March 12, 1990
    Date of Patent: April 30, 1991
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeong-keun An, Young-cheol Kim, Seok-jeong Lee, Jung-jae Yu