Patents by Inventor Won Mook JUNG

Won Mook JUNG 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 for updating inverted index of flash SSD
    Patent number: 9715446
    Abstract: Disclosed is a method for updating an inverted index of a flash solid state disk (SSD). The method including: storing postings of a term that is present in only an in-memory inverted index in a block of an output buffer and reading postings of a last block of each posting list to be updated from an on-disk inverted index to be stored in each block of an input buffer, by scanning the on-disk inverted index and the in-memory inverted index; moving postings of the input buffer to the blocks of the output buffer for each block and attaching new postings of the in-memory inverted index to the block corresponding to the output buffer; and updating the on-disk inverted index by using the postings of each block of the output buffer.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: July 25, 2017
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Sang Hyun Park, Won Mook Jung, Hong Chan Roh, Min Cheol Shin
  • METHOD FOR UPDATING INVERTED INDEX OF FLASH SSD
    Publication number: 20140351490
    Abstract: Disclosed is a method for updating an inverted index of a flash solid state disk (SSD). The method including: storing postings of a term that is present in only an in-memory inverted index in a block of an output buffer and reading postings of a last block of each posting list to be updated from an on-disk inverted index to be stored in each block of an input buffer, by scanning the on-disk inverted index and the in-memory inverted index; moving postings of the input buffer to the blocks of the output buffer for each block and attaching new postings of the in-memory inverted index to the block corresponding to the output buffer; and updating the on-disk inverted index by using the postings of each block of the output buffer.
    Type: Application
    Filed: May 22, 2014
    Publication date: November 27, 2014
    Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Sang Hyun PARK, Won Mook JUNG, Hong Chan ROH, Min Cheol SHIN