SYSTEMS, METHODS AND DEVICES FOR BLUETOOTH NUMERIC COMPARISON PAIRING

    公开(公告)号:US20230140459A1

    公开(公告)日:2023-05-04

    申请号:US17905123

    申请日:2021-03-01

    申请人: VeriFone, Inc.

    发明人: James Murray

    摘要: Systems, methods, and devices for Bluetooth numeric comparison pairing between a handheld payment terminal and a base station that is incapable of displaying digits of a base station Bluetooth pairing code are disclosed. A handheld payment terminal computer program may initiate Bluetooth numeric pairing with a base station; generate a handheld payment terminal Bluetooth pairing code; capture a coded light sequence emitted by LEDs on the base station; decode the coded light sequence to determine the base station Bluetooth pairing code; cause the base station Bluetooth pairing code and the handheld payment terminal Bluetooth pairing code to be displayed on a display; and in response to Bluetooth pairing code match, pairing the handheld payment terminal with the base station. The base station provides access to one or more networks and/or data communication to the handheld payment terminal when paired.

    Clipping-enhanced data communication

    公开(公告)号:US11621876B2

    公开(公告)日:2023-04-04

    申请号:US17053533

    申请日:2019-05-09

    摘要: A system and method for communication of digital data includes receiving a plurality of data bits to be transmitted, and generating an output signal for transmission by a transmitter circuit. The generating includes generating a portion of the output signal comprising values of the output signal with magnitude less than a specified threshold, the specified threshold corresponding to a specified transmitter circuit maximum output power; and generating a portion of the output signal comprising a representation of values of the output signal with magnitude greater than the specified threshold.

    Security shutter
    3.
    发明授权

    公开(公告)号:US11611396B2

    公开(公告)日:2023-03-21

    申请号:US16756399

    申请日:2018-10-15

    申请人: pureLiFi Limited

    发明人: Ron Schaeffer

    摘要: An optical wireless communication device comprises: at least one of a transmitter and a receiver configured to transmit and/or receive light comprising an optical wireless communication signal representing data; at least one adjustable shutter element associated with the at least one of a transmitter and a receiver, wherein the at least one adjustable shutter element and the associated at least one of the transmitter and the receiver are adjustable between a first configuration and a second configuration such that in the first configuration the at least one adjustable shutter element is configured to at least partially block or partially redirect light having a first selected property and at least partially allow light having a second selected property to pass through unaffected such that transmission and/or reception of the optical wireless communication signal by the at least one of the transmitter and the receiver is substantially altered.

    FIBER BRANCH STRUCTURE FOR SPATIAL OPTICAL COMMUNICATION AND OPTICAL COMMUNICATION SYSTEM EQUIPPED WITH SAME

    公开(公告)号:US20230059214A1

    公开(公告)日:2023-02-23

    申请号:US17792517

    申请日:2020-01-27

    摘要: The present invention relates to a fiber branch structure for spatial optical communication for transmitting information by emitting communication light. The fiber branch structure is provided with: a light emitter configured to emit communication light; a light emission controller configured to control the light emitter; an optical fiber configured to transmit the light emitted from the light emitter; a distributor configured to distribute the light, the distributer being optically coupled to an output terminal of the optical fiber; and an optical fiber group optically coupled to a plurality of output terminals of the distributor. According to the present invention, a communication area can be established without blind spots. That is, the fiber branch structure for spatial optical communication according to the present invention includes an optical fiber group optically coupled to a plurality of output terminals of the distributor. A communication area can be established more assuredly by such an optical fiber group, which prevents the optical communication from being interrupted.

    Illumination device and method for avoiding flicker

    公开(公告)号:USRE49421E1

    公开(公告)日:2023-02-14

    申请号:US16282231

    申请日:2019-02-21

    摘要: An illumination device comprising a plurality of light emitting diodes (LEDs) and a method for controlling the illumination device while avoiding flicker in the LED output is provided herein. According to one embodiment, the method may include driving the plurality of LEDs substantially continuously with drive currents configured to produce illumination, periodically turning the plurality of LEDs off for short durations of time during a first period to take measurements or communicate optical data, and increasing the drive currents supplied to the plurality of LEDs by a small amount when the LEDs are on during the first period to compensate for lack of illumination when the LEDs are periodically turned off during the first period.

    Communication device
    8.
    发明授权

    公开(公告)号:US11546057B2

    公开(公告)日:2023-01-03

    申请号:US16868797

    申请日:2020-05-07

    IPC分类号: H04B10/116 H04B10/80

    摘要: A mobile terminal is a communication device that communicates using visible light, and includes: a plurality of light emitters, each of which is disposed along the front surface of the mobile terminal and transmits a visible light signal; and a plurality of light receivers, each of which is disposed along the front surface and receives a visible light signal. The plurality of light emitters are disposed on the left side of all of the plurality of light receivers, and the plurality of first light receivers are disposed on the right side of all of the plurality of light emitters.