Kramers-Kronig receiver
    83.
    发明授权

    公开(公告)号:US10797800B2

    公开(公告)日:2020-10-06

    申请号:US16308997

    申请日:2017-06-08

    Abstract: A Kramers-Kronig receiver that may include a reception path; wherein the reception path may include a photodiode that is configured to receive a received signal and output a photocurrent that represents the received signal; wherein the received signal comprises a continuous wave (CW) signal and a modulated signal; wherein a frequency gap between the CW signal and the modulated signal is smaller than a bandwidth of the modulated signal; an analog to digital converter that is configured to generate a digital representation of the photocurrent; and a digital processor that is configured to process the digital representation of the photocurrent to provide a reconstructed modulated signal, wherein the processing is based on a Kramers-Kronig relationship related to the received signal.

    Nanotags for authentication
    89.
    发明授权

    公开(公告)号:US10679110B2

    公开(公告)日:2020-06-09

    申请号:US16371243

    申请日:2019-04-01

    Abstract: A method for creating a nanostructure surface, comprises creating a nanostructure master having a surface being the negative of a shape that, when illuminated with a predefined illumination, provides a unique optical pattern; and creating nanostructure molds from the nanostructure master, wherein each nanostructure mold has a negative of the master surface which, when illuminated with the predefined illumination, provides the unique optical pattern, which may be a hologram. A nanotag may incorporate an image for identification and a unique pattern that can be identified for authentication.

Patent Agency Ranking