Near Field Communication NFC Apparatus and Open-Loop Control Method

    公开(公告)号:US20240195454A1

    公开(公告)日:2024-06-13

    申请号:US18418693

    申请日:2024-01-22

    IPC分类号: H04B5/20

    CPC分类号: H04B5/20

    摘要: A near-field communication (NFC) apparatus includes a clock extractor configured to perform clock recovery based on a first carrier signal sent by an NFC card reader to obtain a field clock signal; a digital phase-locked loop configured to perform frequency tracking on the field clock signal to output a first clock signal; a digital baseband chip configured to perform load modulation based on the first clock signal to generate a second carrier signal; and a controller configured to detect a frequency or a phase of the field clock signal, and selectively perform open-loop control on the digital phase-locked loop based on a detection result.

    HAPTIC WEARABLES FOR USERS HAVING HEARING LOSS

    公开(公告)号:US20240194039A1

    公开(公告)日:2024-06-13

    申请号:US18532493

    申请日:2023-12-07

    申请人: Keelin Grace Monk

    发明人: Keelin Grace Monk

    IPC分类号: G08B6/00 H04B5/20

    CPC分类号: G08B6/00 H04B5/20

    摘要: A wearable haptic system is disclosed herein. The wearable haptic system includes two wearable wrist bands and two wearable anklets. Each of the wrist bands includes eight haptic motors, and each of the anklets includes eight haptic motors. The haptic motors are configured to receive Bluetooth signals and are to be actuated to move upon receipt of Bluetooth signals.