Patents by Inventor Chandra Shekhar Dhir

Chandra Shekhar Dhir 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: 8886635
    Abstract: The present invention relates to an apparatus and method for recognizing content using an audio signal. The content recognition apparatus includes a query fingerprint extraction unit for forming frames having a preset frame length for an audio signal, and generating frame-based feature vectors for respective frames, thus extracting a query fingerprint. A reference fingerprint DB stores reference fingerprints to be compared with the query fingerprint and pieces of content information corresponding to the reference fingerprints. A fingerprint matching unit determines a reference fingerprint matching the query fingerprint. In this case, the query fingerprint extraction unit forms the frames while varying a frame shift size that is an interval between start points of neighboring frames in a partial section. According to the present invention, there can be provided a content recognition apparatus and method which can maintain the accuracy and reliability of matching while promptly providing results.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: November 11, 2014
    Assignee: Enswers Co., Ltd.
    Inventors: Hoon-young Cho, Jaehyung Lee, Chandra Shekhar Dhir
  • Publication number: 20140226011
    Abstract: Disclosed is a traffic lane recognizing apparatus and a method thereof. The traffic lane recognizing apparatus includes: a camera module; a display unit displaying an image captured by the camera module; and a controller detecting candidate traffic lanes from an image captured by the camera module, detecting double lines from the detected candidate traffic lanes, selecting a first traffic lane adjacent to a vehicle from among the detected double lines, selecting a second traffic lane adjacent to the vehicle from among the candidate traffic lanes, excluding the double lines, and displaying the first traffic lane and the second traffic lane on the image.
    Type: Application
    Filed: January 9, 2012
    Publication date: August 14, 2014
    Inventors: Youngkyung Park, Jonghun Kim, Joongjae Lee, Hyunsoo Kim, Junoh Park, Jeihun Lee, Andreas Park, Chandra Shekhar Dhir
  • Publication number: 20130318071
    Abstract: The present invention relates to an apparatus and method for recognizing content using an audio signal. The content recognition apparatus includes a query fingerprint extraction unit for forming frames having a preset frame length for an audio signal, and generating frame-based feature vectors for respective frames, thus extracting a query fingerprint. A reference fingerprint DB stores reference fingerprints to be compared with the query fingerprint and pieces of content information corresponding to the reference fingerprints. A fingerprint matching unit determines a reference fingerprint matching the query fingerprint. In this case, the query fingerprint extraction unit forms the frames while varying a frame shift size that is an interval between start points of neighboring frames in a partial section. According to the present invention, there can be provided a content recognition apparatus and method which can maintain the accuracy and reliability of matching while promptly providing results.
    Type: Application
    Filed: June 8, 2012
    Publication date: November 28, 2013
    Applicant: ENSWERS CO., LTD.
    Inventors: Hoon-young Cho, Jaehyung Lee, Chandra Shekhar Dhir