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    LEVERAGING CHANNEL DIVERSITY IN WIRELESS POWER AND COMMUNICATION
    95.
    发明申请
    LEVERAGING CHANNEL DIVERSITY IN WIRELESS POWER AND COMMUNICATION 审中-公开

    公开(公告)号：US20200265285A1

    公开(公告)日：2020-08-20

    申请号：US16277273

    申请日：2019-02-15

    Applicant: International Business Machines Corporation

    Inventor： Arun Paidimarri ,  Bodhisatwa Sadhu ,  Duixian Liu ,  Alberto Valdes Garcia

    IPC: G06K19/077 ,  G06K7/00

    Abstract: A radio frequency identification (RFID) system. An RFID tag may include multiple antennas connected with associated circuitry. An RFID tag's multiple antennas and associated circuitry are connected in parallel, and output power of the multiple associated circuitry can be combined. Each of the multiple antennas can be tuned for a different operating property or region. An RFID reader can include multiple antennas connected with associated circuitry. RFID reader's multiple antenna interfaces connect with a baseband processor, which can integrate resources of the reader's multiple antennas and associated circuitry. RFID tag and/or reader can be configured to support wireless channel diversity in enhancing at least one of power delivery and communication link budget.

    Transformer based shielded oscillator
    96.
    发明授权
    Transformer based shielded oscillator 有权

    公开(公告)号：US10749469B2

    公开(公告)日：2020-08-18

    申请号：US16138989

    申请日：2018-09-22

    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

    Inventor： Tejasvi Anand ,  Mark A. Ferriss ,  Bodhisatwa Sadhu ,  Alberto Valdes Garcia

    IPC: H03B5/12 ,  H03B5/08 ,  H03B5/18

    Abstract: An oscillator includes a first output node and a second output node. There is a tank circuit coupled between the first output node and the second output node. There is a first transistor having a first node, a second node coupled to a current source, and a control node coupled to the second output node. There is a second transistor having a first node, a second node coupled to the current source, and a control node coupled to the first output node. There is a first inductor coupled in series between the first node of the first transistor and the first output node. There is a second inductor coupled in series between the first node of the second transistor and the second output node.

    CONSUMER AND BUSINESS ANTI-COUNTERFEITING SERVICES USING IDENTIFICATION TAGS
    98.
    发明申请
    CONSUMER AND BUSINESS ANTI-COUNTERFEITING SERVICES USING IDENTIFICATION TAGS 审中-公开

    公开(公告)号：US20190394213A1

    公开(公告)日：2019-12-26

    申请号：US16563013

    申请日：2019-09-06

    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

    Inventor： Jean-Olivier Plouchart ,  Wendy Chong ,  Alberto Valdes Garcia ,  Petros Zerfos

    IPC: H04L29/06

    Abstract: Methods and systems for tag-based identification include receiving a set of parameters at a user device from a remote server. A counterfeit-proof identification tag is read using a sensor in the user device using the set of parameters. Features of the counterfeit-proof identification tag are extracted in accordance with a feature extraction function, using a processor, to generate a tag bit sequence. A challenge function is applied to the extracted features to generate a result. The result is transmitted to the remote server to authenticate the counterfeit-proof identification tag. The counterfeit-proof identification tag is authenticated with a tag database at the remote server.

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