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    Techniques for position-based actions using light-based communication
    51.
    发明授权
    Techniques for position-based actions using light-based communication 有权

    公开(公告)号：US10097265B2

    公开(公告)日：2018-10-09

    申请号：US15127912

    申请日：2015-03-25

    Applicant: OSRAM SYLVANIA Inc.

    Inventor： Anant Aggarwal ,  Christian Breuer ,  Barry Stout

    IPC: H04B10/50 ,  H04B10/116 ,  H04W4/02 ,  H04W4/04 ,  G08C23/04

    Abstract: Techniques are disclosed for position-based actions using light-based communication (LCom). LCom signals can be used to encode or otherwise provide data which in turn can be used to help determine the position of a device receiving those LCom signals. Therefore, LCom can be used to facilitate various actions based on, for example, the position of an LCom receiver determined using data received via the LCom signals. There are numerous use cases for position-based actions using LCom, such as security applications, check-in applications, payments based on location, permissions, and access to information that can all be tied to a location. Actions may include temporarily disabling or enabling the LCom receiver hardware or software (such as disabling device cameras in high security areas), providing another security layer as a result of knowing the device position, and using the LCom receiver position as a part of a larger process.

    Techniques for lumen maintenance and color shift compensation
    54.
    发明授权
    Techniques for lumen maintenance and color shift compensation 有权

    公开(公告)号：US09743483B2

    公开(公告)日：2017-08-22

    申请号：US15093917

    申请日：2016-04-08

    Applicant: OSRAM SYLVANIA Inc.

    Inventor： Ming Li ,  Qi Dai ,  Keng Chen

    IPC: G01J1/02 ,  G01J1/16 ,  H05B33/08 ,  G01J1/58

    CPC classification number: H05B33/0869 ,  G01J1/0228 ,  G01J1/0238 ,  G01J1/16 ,  G01J1/58 ,  G01J2001/1673

    Abstract: Techniques are disclosed for maintaining consistent lumen output of a lighting assembly over time. By maintaining a consistent lumen output, it is possible to maintain acceptable color stability where color mixing of multiple outputs is used. The lighting assembly may be any lighting configuration that might suffer from lumen depreciation and/or color drift over time, and may include any type(s) of light source(s) that may be monitored and driven accordingly. The lighting assembly, in addition to light source(s), includes a photo detector and a directed light source, such as a laser. The directed light source provides a golden sample for use in calibrating the photo detector, which in turn monitors lumen output of the light source(s). Drive signals are adjusted to account for lumen depreciation of the monitored light source(s).

    WIRELESS MESH NETWORK HEALTH DETERMINATION
    59.
    发明申请
    WIRELESS MESH NETWORK HEALTH DETERMINATION 审中-公开

    公开(公告)号：US20170093663A1

    公开(公告)日：2017-03-30

    申请号：US15058218

    申请日：2016-03-02

    Applicant: OSRAM SYLVANIA Inc.

    Inventor： Bruce A.C. Douglas ,  Stefan Warner ,  David Ko

    IPC: H04L12/26 ,  H04W72/08 ,  H04W72/06 ,  H04W24/08

    CPC classification number: H04W24/08 ,  H04L41/12 ,  H04L41/142 ,  H04L43/0847 ,  H04W84/18 ,  Y02D70/122 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/22

    Abstract: Methods and system to determine the health of wireless mesh networks are provided. Each radio node of a wireless mesh network transmits Link Quantification Messages (LQMs) interPAN at maximum power to enable adjacent nodes to determine the Received Signal Strength Indication (RSSI) on the wireless link to that radio node. Each radio node also transmits LQMs at successively lower power levels. The adjacent nodes detect a power level at measurable packet error rate to determine a noise floor for the wireless link. An aggregator collects link quantification information from the radio nodes and forms an intercommunication matrix for the wireless network. The RSSI and power level at measurable packet error rate information is used to remove unreliable links from the intercommunication matrix. Nodes are ranked and the reliability and dependability of the nodes is calculated to show the network health.

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