Secure self-checkout station
    84.
    发明授权

    公开(公告)号:US09715672B2

    公开(公告)日:2017-07-25

    申请号:US13963896

    申请日:2013-08-09

    摘要: A self-checkout kiosk enables a patron to purchase or allocate to an account a product displayed in a vending area and carrying a Radio Frequency Identification (RFID) tag. The patron exits the vending area through a security portal. The kiosk, a bill acceptor, a computer monitor and/or a mobile device enables the patron to complete a purchase or allocate transaction prior to exiting the vending area through the portal. The portal includes RFID reading antennas for marking products stolen when transferred through the portal without a transaction. Alternatively, a smart shelf keeps track of products on the smart shelf and keeps a checkout tally of removed products. If the patron does not complete a purchase or allocate transaction, or returns the product to the smart shelf within a user-defined set of time, the smart shelf will mark the product as stolen. A security system responds to products marked as stolen.

    Method for stabilizing reaction chamber pressure

    公开(公告)号:US09663857B2

    公开(公告)日:2017-05-30

    申请号:US14246969

    申请日:2014-04-07

    IPC分类号: C23C16/455

    摘要: A method stabilizes pressure of a reaction chamber during a process using a first gas and a second gas, wherein a gas inlet line is connected to the reaction chamber, and a second gas line and a first gas line are connected to another end of the gas inlet line. The method includes: feeding a first gas in pulses according to a waveform to the reaction chamber through the first gas line and the gas inlet line; and feeding a second gas in pulses according to a reverse waveform to the reaction chamber through the second gas line and the gas inlet line, wherein superimposed waveforms of the waveform and reverse waveform are made substantially or nearly flat, thereby stabilizing pressure of the reaction chamber.