APPARATUS AND METHOD FOR FORGERY PREVENTION OF DIGITAL INFORMATION

    公开(公告)号:US20200213092A1

    公开(公告)日:2020-07-02

    申请号:US16721986

    申请日:2019-12-20

    Abstract: Provided are an apparatus and method for forgery prevention of digital information. The apparatus for forgery prevention of digital information includes: a digital information obtaining unit configured to obtain digital information in real time; a seed value generator configured to generate a seed value carrying characteristics of the digital information obtained using the digital information obtaining unit; an information piece generator configured to divide the digital information obtained using the digital information obtaining unit, into continuous information pieces with a sequence; and a hash value generator configured to generate a hash value of a first information piece from the seed value and the first information piece and generate a hash value of a subsequent information piece by using a hash value of a previous information piece and the subsequent information piece as inputs.

    APPARATUS AND METHOD OF SEPARATING SOUND SOURCES

    公开(公告)号:US20200152216A1

    公开(公告)日:2020-05-14

    申请号:US16546440

    申请日:2019-08-21

    Abstract: A sound source separating apparatus may include: a housing; a plurality of microphones positioned on the housing; a plurality of sound guides positioned on the housing to be adjacent to the plurality of microphones, and configured to guide sound to the plurality of microphones and to generate a difference between a plurality of sound information respectively arriving at the plurality of microphones according to a direction of a sound source; and a processor configured to separate the sound source according to the direction of the sound source based on the plurality of sound information received by the plurality of microphones.

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