Patents by Inventor Min Joung SHEEN

Min Joung SHEEN 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).

  • NUMERICALLY-CONTROLLED OSCILLATOR CAPABLE OF GENERATING COSINE SIGNAL AND SINE SIGNAL ONLY USING COSINE LOOK UP TABLE AND OPERATING METHOD OF THE NUMERICALLY-CONTROLLED OSCILLATOR
    Publication number: 20090157783
    Abstract: A numerically-controlled oscillator (NCO) and an operating method of the NCO are provided. According to the NCO and the operating method of the NCO, it is possible to reduce the size of a lookup table memory by using a lookup table, which stores a plurality of phase compensation values for different phases obtained by using a cosine function or a sine function. Thus, it is possible to easily calculate cosine and sine addresses and cosine and sine signs and to quickly provide a cosine phase compensation signal and a sine phase compensation signal.
    Type: Application
    Filed: September 25, 2008
    Publication date: June 18, 2009
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Seok SEO, Min Joung SHEEN, Gweon Do JO